:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;--ink:#172033;--muted:#657085;--line:#dde3ed;--panel:#fff;--brand:#3457d5;--brand-dark:#243fa6;--success:#14866d;--danger:#b42318;background:#f5f7fb;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,a{font:inherit}a{color:inherit}.app-shell{flex-direction:column;min-height:100vh;display:flex}.topbar{border-bottom:1px solid var(--line);background:#fffffff0;grid-template-columns:minmax(220px,1fr) auto minmax(220px,1fr);align-items:center;gap:28px;min-height:76px;padding:12px clamp(20px,5vw,72px);display:grid}.brand{align-items:center;gap:11px;width:fit-content;text-decoration:none;display:inline-flex}.brand-mark{color:#fff;background:linear-gradient(145deg,#4f71ed,#263fa7);border-radius:12px;place-items:center;width:42px;height:42px;font-weight:800;display:grid}.brand strong,.brand small{display:block}.brand small{color:var(--muted);margin-top:1px;font-size:.75rem}.main-nav{border:1px solid var(--line);background:#f8f9fc;border-radius:999px;align-items:center;gap:6px;padding:5px;display:flex}.main-nav a{color:var(--muted);border-radius:999px;padding:8px 15px;font-size:.9rem;font-weight:650;text-decoration:none}.main-nav a.active{color:var(--brand-dark);background:#fff;box-shadow:0 2px 10px #17203317}.session-summary{color:var(--muted);justify-self:end;font-size:.9rem}.session-summary a{color:var(--brand-dark);font-weight:700}.signed-in-actions{align-items:center;gap:9px;display:flex}.signed-in-actions a{text-decoration:none}.signed-in-actions button{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;padding:6px 9px}.signed-in-actions button:disabled{opacity:.55;cursor:wait}.membership{color:#71520a;text-transform:uppercase;background:#fff4cb;border-radius:999px;margin-left:8px;padding:4px 8px;font-size:.7rem}.status-error{color:var(--danger)}.eyebrow,.card-label{color:var(--brand);letter-spacing:.11em;text-transform:uppercase;margin:0 0 12px;font-size:.78rem;font-weight:800}h1,h2,p{margin-top:0}h1{max-width:780px;color:var(--ink);letter-spacing:-.02em;margin-bottom:14px;font-size:clamp(1.6rem,2.6vw,2.15rem);line-height:1.15}.button{border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:0 18px;font-weight:750;text-decoration:none;transition:transform .15s,box-shadow .15s,background .15s;display:inline-flex}.button.primary{color:#fff;background:linear-gradient(135deg, var(--brand), var(--brand-dark));box-shadow:0 1px 2px #0f172a14,0 6px 16px #16a37f3d}.button.primary:hover{transform:translateY(-1px);box-shadow:0 2px 4px #0f172a1a,0 10px 22px #16a37f4d}.button.primary:active{transform:translateY(0)}.button.secondary{border-color:var(--line);background:#fff}.button.secondary:hover{border-color:var(--brand);background:#f6fdfa}@media (prefers-reduced-motion:reduce){.button{transition:none}.button.primary:hover{transform:none}}.message-panel,.fatal-error{border:1px solid var(--line);text-align:center;background:#fff;border-radius:20px;max-width:560px;margin:8vh auto;padding:clamp(28px,5vw,44px)}.message-panel h1,.fatal-error h1{margin-inline:auto;font-size:clamp(1.5rem,3vw,2rem)}.message-panel p:not(.eyebrow),.fatal-error p:not(.eyebrow){color:var(--muted)}.message-panel .button{margin-top:18px}.site-footer{border-top:1px solid var(--line);color:var(--muted);background:#fff;justify-content:space-between;gap:20px;padding:22px clamp(20px,5vw,72px);font-size:.82rem;display:flex}@media (width<=820px){.topbar{grid-template-columns:1fr auto}.main-nav{grid-area:2/1/auto/-1;justify-self:center}.session-summary{grid-area:1/2}.status-grid{grid-template-columns:1fr}}@media (width<=520px){.topbar{gap:14px;padding-inline:16px}.brand small{display:none}.session-summary{font-size:.8rem}.main-nav{width:100%}.main-nav a{text-align:center;flex:1}.page-shell{width:min(100% - 24px,1180px);padding-block:32px}.hero-panel{border-radius:20px}.site-footer{flex-direction:column}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}.page-heading{max-width:720px;margin-bottom:24px}.page-heading.compact{margin-bottom:18px}.page-heading h1{margin-bottom:8px;font-size:clamp(1.5rem,2.2vw,1.9rem)}.page-heading>p:last-child{color:var(--muted);font-size:.98rem;line-height:1.6}.subject-grid,.topic-grid,.loading-grid{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.subject-card,.topic-card{border:1px solid var(--line);background:#fff;border-radius:20px;min-width:0;padding:26px;box-shadow:0 10px 34px #25345b0e}.subject-card{flex-direction:column;min-height:0;display:flex}.subject-number{color:#9ba6ba;letter-spacing:.12em;font-size:.78rem;font-weight:800}.subject-card h2{margin:14px 0 8px;font-size:1.2rem}.subject-card>p{color:var(--muted);flex:1;font-size:.92rem;line-height:1.55}.subject-stats{color:var(--muted);gap:20px;margin:14px 0;font-size:.85rem;display:flex}.subject-stats strong{color:var(--ink)}.subject-card>a,.topic-link{color:var(--brand-dark);font-weight:750;text-decoration:none}.catalog-toolbar{border:1px solid var(--line);background:#fff;border-radius:18px;grid-template-columns:minmax(0,1fr) 240px;align-items:end;gap:18px;margin-bottom:18px;padding:20px;display:grid}.search-form label,.subject-filter{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;gap:8px;font-size:.78rem;font-weight:800;display:grid}.search-form>div{display:flex}.search-form input,.subject-filter select{width:100%;min-height:46px;color:var(--ink);background:#fff;border:1px solid #cfd6e2;outline:none}.search-form input{border-radius:11px 0 0 11px;padding:0 15px}.search-form button{color:#fff;background:var(--brand);border:0;border-radius:0 11px 11px 0;padding:0 19px;font-weight:750}.subject-filter select{border-radius:11px;padding:0 11px}.search-form input:focus,.subject-filter select:focus{border-color:var(--brand);box-shadow:0 0 0 3px #3457d51f}.active-filters,.results-summary{color:var(--muted);justify-content:space-between;align-items:center;gap:16px;margin:18px 0;font-size:.9rem;display:flex}.active-filters{background:#edf1ff;border-radius:12px;padding:12px 16px}.active-filters button{color:var(--brand-dark);cursor:pointer;background:0 0;border:0;font-weight:750}.topic-card{flex-direction:column;min-height:0;display:flex}.topic-card-topline{justify-content:space-between;align-items:center;gap:12px;display:flex}.access-badge,.difficulty{letter-spacing:.05em;text-transform:uppercase;border-radius:999px;padding:5px 9px;font-size:.69rem;font-weight:800;display:inline-flex}.access-badge.free{color:#08654f;background:#dcf7ed}.access-badge.premium{color:#71520a;background:#fff2bf}.difficulty{color:#5c6473;background:#f0f2f6}.topic-subject{color:var(--brand);margin:12px 0 6px;font-size:.76rem;font-weight:750}.topic-card h2{margin-bottom:8px;font-size:1.1rem;line-height:1.3}.topic-card h2 a{text-decoration:none}.topic-summary{color:var(--muted);line-height:1.58}.topic-card>div:nth-child(2){flex:1}.tag-list{flex-wrap:wrap;gap:7px;margin:16px 0;display:flex}.tag-list a{color:#5d6880;background:#f1f3f7;border-radius:8px;padding:5px 8px;font-size:.73rem;text-decoration:none}.pagination{flex-wrap:wrap;justify-content:center;gap:7px;margin-top:34px;display:flex}.pagination button{border:1px solid var(--line);min-width:40px;height:40px;color:var(--ink);cursor:pointer;background:#fff;border-radius:10px;padding:0 12px}.pagination button.current{color:#fff;border-color:var(--brand);background:var(--brand)}.pagination button:disabled{opacity:.4;cursor:not-allowed}.page-slot{align-items:center;gap:7px;display:inline-flex}.ellipsis{color:var(--muted)}.loading-grid .skeleton-card{background:linear-gradient(90deg,#edf0f5 25%,#f8f9fb 50%,#edf0f5 75%) 0 0/200% 100%;border-radius:20px;min-height:280px;animation:1.4s infinite shimmer}@keyframes shimmer{to{background-position:-200% 0}}.inline-state{text-align:center;background:#fff;border:1px dashed #cbd3e0;border-radius:20px;padding:52px}.inline-state h2{font-size:1.6rem}.inline-state p{color:var(--muted)}.reader-layout{grid-template-columns:minmax(0,1fr) 260px;align-items:start;gap:34px;display:grid}.reader-main{min-width:0}.breadcrumbs{color:var(--muted);flex-wrap:wrap;gap:9px;margin-bottom:28px;font-size:.85rem;display:flex}.reader-heading{border-bottom:1px solid var(--line);padding-bottom:22px}.reader-heading h1{margin-top:16px;font-size:clamp(1.6rem,2.6vw,2.15rem)}.reader-tldr{color:#4f5a70;max-width:720px;font-size:1.02rem;line-height:1.65}.prose{color:#293348;padding:36px 0;font-size:1.02rem;line-height:1.78}.prose h2{margin-top:2.2em;font-size:1.8rem}.prose h3{margin-top:1.8em;font-size:1.35rem}.prose a{color:var(--brand)}.prose pre{color:#e8edf7;background:#172033;border-radius:15px;margin:26px 0;padding:22px;font-size:.88rem;line-height:1.6;overflow:auto}.prose code:not(pre code){color:#283f9b;background:#edf1ff;border-radius:5px;padding:2px 6px}.prose table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:10px 12px}.reader-aside{border:1px solid var(--line);background:#fff;border-radius:18px;padding:23px;position:sticky;top:24px}.reader-aside dl{margin:0 0 20px}.reader-aside dl div{border-bottom:1px solid #edf0f4;justify-content:space-between;gap:12px;padding:11px 0;display:flex}.reader-aside dt{color:var(--muted)}.reader-aside dd{text-align:right;margin:0;font-weight:700}.reader-aside .button{width:100%}.reader-aside .button+.button{margin-top:9px}.bookmark-button{cursor:pointer}.bookmark-button[aria-pressed=true]{color:var(--brand-dark);background:#edf1ff;border-color:#aab8eb}.completion-control{gap:8px;margin-bottom:9px;display:grid}.completion-control>div{grid-template-columns:repeat(3,1fr);gap:5px;display:grid}.completion-control>div button,.progress-panel button{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;padding:7px}.completion-state{color:#08654f;background:#dcf7ed;border-radius:10px;justify-content:space-between;margin-bottom:9px;padding:11px;font-size:.82rem;display:flex}.progress-panel{border:1px solid var(--line);background:#fff;border-radius:16px;grid-template-columns:1fr minmax(180px,40%) auto;align-items:center;gap:18px;margin:-14px 0 24px;padding:18px 20px;display:grid}.progress-panel div{gap:4px;display:grid}.progress-panel span{color:var(--muted);font-size:.82rem}.progress-panel progress{width:100%;accent-color:var(--success)}@media (width<=650px){.progress-panel{grid-template-columns:1fr}}.note-editor{border:1px solid var(--line);background:#fff;border-radius:18px;margin-top:34px;padding:24px}.note-editor>div{justify-content:space-between;gap:15px;display:flex}.note-editor h2{font-size:1.3rem}.note-editor span{color:var(--success);font-size:.8rem}.note-editor form{gap:12px;display:grid}.note-editor textarea{resize:vertical;width:100%;color:var(--ink);font:inherit;border:1px solid #cfd6e2;border-radius:11px;padding:14px;line-height:1.55}.note-editor .button{justify-self:end}.notes-grid{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}.note-card{border:1px solid var(--line);background:#fff;border-radius:18px;padding:25px}.note-card h2 a{text-decoration:none}.note-card>p:not(.card-label){color:var(--muted);-webkit-line-clamp:4;-webkit-box-orient:vertical;line-height:1.6;display:-webkit-box;overflow:hidden}@media (width<=650px){.notes-grid{grid-template-columns:1fr}}.profile-form{border:1px solid var(--line);background:#fff;border-radius:20px;grid-template-columns:repeat(2,1fr);gap:18px;padding:28px;display:grid}.profile-form label{color:var(--muted);gap:7px;font-size:.82rem;font-weight:700;display:grid}.profile-form input,.profile-form textarea{color:var(--ink);font:inherit;border:1px solid #cfd6e2;border-radius:10px;padding:12px}.profile-form .wide{grid-column:1/-1}.form-actions{justify-content:flex-end;align-items:center;gap:15px;display:flex}.form-actions span{color:var(--success)}@media (width<=650px){.profile-form{grid-template-columns:1fr}.profile-form .wide{grid-column:auto}}.avatar-panel{border:1px solid var(--line);background:#fff;border-radius:20px;grid-template-columns:120px 1fr;align-items:center;gap:24px;margin-bottom:20px;padding:25px;display:grid}.avatar-preview{color:#fff;background:linear-gradient(145deg,#4f71ed,#263fa7);border-radius:50%;place-items:center;width:112px;height:112px;font-size:2.5rem;font-weight:800;display:grid;overflow:hidden}.avatar-preview img{object-fit:cover;width:100%;height:100%}.avatar-panel h2{margin-bottom:6px}.avatar-panel p{color:var(--muted)}.avatar-actions{flex-wrap:wrap;gap:9px;display:flex}.avatar-actions input{opacity:0;width:1px;height:1px;position:absolute}.avatar-panel small{color:var(--muted);margin-top:10px;display:block}.avatar-panel .form-error{margin-top:10px}@media (width<=520px){.avatar-panel{grid-template-columns:1fr}.avatar-preview{margin:auto}}.premium-lock{text-align:center;background:linear-gradient(145deg,#fffdf5,#fff8dc);border:1px solid #eadba3;border-radius:24px;max-width:720px;margin:42px auto;padding:46px}.premium-lock>span{color:#76580b;background:#ffe88b;border-radius:14px;place-items:center;width:48px;height:48px;margin:0 auto 18px;display:grid}.premium-lock h2{font-size:1.8rem}.premium-lock>p:not(.eyebrow){color:#6c6042;line-height:1.65}.premium-lock>div{justify-content:center;gap:10px;margin-top:24px;display:flex}@media (width<=960px){.subject-grid,.topic-grid,.loading-grid{grid-template-columns:repeat(2,1fr)}.reader-layout{grid-template-columns:1fr}.reader-aside{position:static}}@media (width<=650px){.subject-grid,.topic-grid,.loading-grid,.catalog-toolbar{grid-template-columns:1fr}.active-filters{flex-direction:column;align-items:flex-start}.reader-heading h1{font-size:2.5rem}.premium-lock{padding:30px 20px}.premium-lock>div{flex-direction:column}}.auth-page{grid-template-columns:minmax(0,1fr) minmax(320px,420px);align-items:center;gap:clamp(28px,5vw,56px);max-width:880px;margin:4vh auto;display:grid}.auth-intro h1{font-size:clamp(1.6rem,2.8vw,2.15rem)}.auth-intro>p:last-child{max-width:460px;color:var(--muted);font-size:.98rem;line-height:1.6}.auth-card,.account-card{border:1px solid var(--line);background:#fff;border-radius:24px;padding:clamp(28px,5vw,42px);box-shadow:0 20px 60px #25345b17}.auth-card>p{color:var(--muted)}.auth-form{gap:18px;margin-top:27px;display:grid}.auth-form label{color:#4e596e;gap:8px;font-size:.84rem;font-weight:750;display:grid}.auth-form input{width:100%;min-height:48px;color:var(--ink);background:#fff;border:1px solid #cfd6e2;border-radius:11px;outline:none;padding:0 13px}.auth-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #3457d51f}.auth-form .button{cursor:pointer;width:100%;margin-top:3px}.auth-form .button:disabled{opacity:.6;cursor:wait}.form-error{color:var(--danger);background:#fff0ee;border-radius:10px;padding:11px 13px;font-size:.88rem}.auth-links{justify-content:space-between;gap:14px;margin-top:20px;font-size:.86rem;display:flex}.auth-links a{color:var(--brand-dark);font-weight:700}.social-login{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:9px;margin-top:28px;padding-top:24px;display:grid}.social-login>span{color:var(--muted);text-align:center;grid-column:1/-1;font-size:.8rem}.account-card{max-width:700px;margin:0}.account-card div{border-bottom:1px solid var(--line);grid-template-columns:150px 1fr;gap:20px;padding:16px 0;display:grid}.account-card div:last-child{border-bottom:0}.account-card dt{color:var(--muted)}.account-card dd{margin:0;font-weight:750}@media (width<=760px){.auth-page{grid-template-columns:1fr;gap:28px}.auth-intro h1{font-size:3.2rem}}:root{--brand:#16a37f;--brand-dark:#0e7a5f;--brand-light:#e6f7f2;--brand-glow:#16a37f24;--guru:#d97706;--guru-light:#fef3c7;--guru-glow:#d9770624;--success:#16a37f;--ink:#101828;--muted:#6b7280;--line:#e5e9ef;--panel:#fff;--bg:#f4f6f9;--shadow-sm:0 1px 2px #0f172a0d;--shadow-md:0 1px 3px #0f172a0a, 0 6px 18px #0f172a0f;--shadow-lg:0 2px 6px #0f172a0d, 0 16px 36px #0f172a1a;background:#f4f6f9}.app-shell-v2{background:#f4f6f9;min-height:100vh}.side-nav{z-index:100;border-right:1px solid var(--line);background:#fff;flex-direction:column;width:240px;height:100vh;transition:transform .2s;display:flex;position:fixed;inset:0 auto 0 0}.side-brand{color:var(--ink);letter-spacing:-.01em;flex-shrink:0;align-items:center;gap:10px;padding:22px;font-size:17px;font-weight:800;text-decoration:none;display:flex}.side-brand i{color:#fff;background:linear-gradient(145deg, var(--brand), var(--brand-dark));width:32px;height:32px;box-shadow:0 4px 10px var(--brand-glow);border-radius:9px;justify-content:center;align-items:center;font-size:15px;display:flex}.side-nav-links{flex:1;padding:4px 12px 12px;overflow-y:auto}.side-nav-heading{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:18px 10px 6px;font-size:10.5px;font-weight:800}.side-nav-links p.side-nav-heading:first-child{margin-top:2px}.side-nav-links a,.side-nav-footer a{color:var(--muted);border-left:3px solid #0000;border-radius:0 9px 9px 0;align-items:center;gap:11px;margin-bottom:2px;padding:9px 12px 9px 9px;font-size:13.5px;font-weight:600;text-decoration:none;transition:background .12s,color .12s,border-color .12s;display:flex}.side-nav-links a i,.side-nav-footer a i{text-align:center;width:18px;color:inherit;flex-shrink:0;font-size:15px}.side-nav-links a:hover,.side-nav-footer a:hover{color:var(--ink);background:#f6f8fa}.side-nav-links a.active{background:var(--brand-light);border-left-color:var(--brand);color:var(--brand-dark);font-weight:700}.side-nav-locked{opacity:.6}.side-lock-icon{margin-left:auto;font-size:10px}.side-nav-footer{border-top:1px solid var(--line);flex-direction:column;flex-shrink:0;gap:3px;padding:12px;display:flex}.side-logout{color:#ef4444;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:9px;align-items:center;gap:11px;padding:9px 12px;font-family:inherit;font-size:13.5px;font-weight:700;display:flex}.side-logout:hover{background:#fff5f5}.side-logout:disabled{opacity:.6;cursor:wait}.side-nav-guest{gap:8px}.side-login-btn{border:1.5px solid var(--brand);color:var(--brand);text-align:center;border-radius:9px;padding:9px;font-size:13px;font-weight:700;text-decoration:none}.side-signup-btn{background:var(--brand);color:#fff;text-align:center;border-radius:9px;padding:9px;font-size:13px;font-weight:700;text-decoration:none}.side-nav-scrim{display:none}.side-nav-toggle{color:var(--ink);cursor:pointer;background:0 0;border:0;align-items:center;padding:4px 8px;font-size:22px;display:none}.side-main{flex-direction:column;min-height:100vh;margin-left:240px;display:flex}.top-header{z-index:90;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);background:#ffffffe6;align-items:center;gap:16px;height:64px;padding:0 24px;display:flex;position:sticky;top:0}.top-guru{z-index:1;align-items:center;gap:10px;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.top-guru-avatar-wrap{flex-shrink:0;width:46px;height:46px;position:relative}.top-guru-avatar{cursor:pointer;background:var(--guru-light);width:100%;height:100%;color:var(--guru);box-shadow:0 0 0 2px var(--guru-glow);border-radius:50%;justify-content:center;align-items:center;font-size:19px;transition:box-shadow .15s;display:flex;overflow:hidden}.top-guru-avatar:hover{box-shadow:0 0 0 3px var(--guru-glow)}.top-guru-avatar img{object-fit:cover;width:100%;height:100%}.top-guru-avatar input{opacity:0;cursor:pointer;position:absolute;inset:0}.top-guru-add{color:#fff;background:linear-gradient(145deg, var(--guru), #b45309);pointer-events:none;border:2px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:17px;height:17px;font-size:9px;display:flex;position:absolute;bottom:-2px;right:-2px}.top-guru-label{color:var(--ink);font-size:13px;font-weight:700}.top-guru-error{color:#b91c1c;width:max-content;max-width:220px;box-shadow:var(--shadow-md);background:#fef2f2;border-radius:8px;padding:6px 10px;font-size:11.5px;font-weight:600;position:absolute;top:54px;left:50%;transform:translate(-50%)}.top-search{border:1.5px solid var(--line);background:#f6f8fa;border-radius:11px;flex:1;align-items:center;max-width:420px;padding:2px;transition:border-color .15s,background .15s,box-shadow .15s;display:flex}.top-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-glow);background:#fff}.top-search input{background:0 0;border:0;outline:none;width:100%;min-width:0;padding:8px 4px 8px 12px;font-size:13.5px}.top-search button{color:#fff;background:var(--brand);cursor:pointer;border:0;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;transition:background .15s;display:flex}.top-search button:hover{background:var(--brand-dark)}.top-header-right{align-items:center;gap:10px;margin-left:auto;display:flex}.theme-toggle{border:1.5px solid var(--line);width:34px;height:34px;color:var(--muted);cursor:pointer;background:#f6f8fa;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;line-height:1;transition:background .15s,transform .15s;display:flex}.theme-toggle:hover{box-shadow:var(--shadow-sm);background:#fff;transform:translateY(-1px)}.top-login-btn{border:1.5px solid var(--brand);color:var(--brand);border-radius:8px;padding:7px 15px;font-size:13px;font-weight:600;text-decoration:none}.top-login-btn:hover{background:#e6f7f2}.top-signup-btn{color:#fff;background:var(--brand);border-radius:8px;padding:7px 15px;font-size:13px;font-weight:700;text-decoration:none}.top-signup-btn:hover{background:var(--brand-dark)}@media (width<=400px){.top-signup-btn .hide-xs{display:none}}.top-profile{color:var(--ink);border-radius:24px;align-items:center;gap:9px;padding:4px 12px 4px 4px;text-decoration:none;transition:background .15s;display:flex}.top-profile:hover{background:#f6f8fa}.top-profile-avatar{background:linear-gradient(145deg, var(--brand), var(--brand-dark));color:#fff;width:34px;height:34px;box-shadow:0 2px 6px var(--brand-glow);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:800;display:flex;position:relative;overflow:hidden}.top-profile-avatar img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.top-profile-info{flex-direction:column;gap:2px;line-height:1;display:flex}.top-profile-name{text-overflow:ellipsis;white-space:nowrap;max-width:130px;font-size:13px;font-weight:700;overflow:hidden}.top-profile-badge{background:linear-gradient(135deg, #fde9b8, var(--guru-light));color:#92400e;text-transform:uppercase;letter-spacing:.05em;border-radius:6px;width:fit-content;padding:1px 7px;font-size:9.5px;font-weight:800}.learning-banner{background:linear-gradient(90deg, var(--brand-dark), var(--brand), var(--brand-dark));color:#fff;letter-spacing:.2px;border-bottom:3px solid #ffffff40;padding:7px 0;font-size:13px;font-weight:600;overflow:hidden}.banner-track{white-space:nowrap;gap:18px;animation:40s linear infinite marquee-scroll;display:inline-flex}.banner-track .sep{opacity:.5}@keyframes marquee-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}@media (width<=768px){.learning-banner{display:none}}@media (prefers-reduced-motion:reduce){.banner-track{animation-duration:120s}}.backend-warning{color:#b42318;text-align:center;background:#fff0ee;padding:7px;font-size:12px}.page-shell{width:min(1180px,100% - 40px);margin:0 auto;padding:28px 0 56px}.dark{--bg:#111827}.dark .app-shell-v2{background:#111827}.dark .side-nav,.dark .top-header{background:#1f2937;border-color:#374151}.dark .side-nav-links a:hover,.dark .side-nav-footer a:hover{color:#e5e7eb;background:#111827}.dark .side-nav-links a.active{color:#34d399;background:#0e2f26}.dark .side-nav-heading{color:#9ca3af}.dark .side-nav-footer{border-color:#374151}.dark .top-search{background:#111827;border-color:#374151}.dark .top-search:focus-within{background:#0b1220}.dark .top-search input{color:#e5e7eb}.dark .top-profile:hover{background:#111827}.dark .theme-toggle{color:#9ca3af;background:#111827;border-color:#374151}.dark .top-guru-avatar{color:#fbbf24;background:#3a2c0a}.dark .top-guru-label{color:#e5e7eb}.dark .top-guru-error{color:#fca5a5;background:#3f1414}.dark .page-shell,.dark .page-shell h1,.dark .page-shell h2{color:#f3f4f6}.dark .page-heading>p:last-child{color:#9ca3af}.dark .eyebrow,.dark .card-label{color:#34d399}.dark .message-panel,.dark .fatal-error,.dark .note-editor,.dark .profile-form,.dark .avatar-panel,.dark .premium-lock,.dark .pricing-card,.dark .pricing-testimonial-card,.dark .payment-result-card,.dark .inline-state{color:#e5e7eb;background:#1f2937;border-color:#374151}.dark .message-panel p:not(.eyebrow),.dark .fatal-error p:not(.eyebrow),.dark .inline-state p{color:#9ca3af}.dark .premium-lock{background:linear-gradient(145deg,#2a2410,#241f0a);border-color:#4a3f10}.dark .premium-lock>p:not(.eyebrow){color:#d4c68a}.dark .note-editor textarea,.dark .profile-form input,.dark .profile-form textarea{color:#e5e7eb;background:#111827;border-color:#374151}.dark .active-filters{color:#9ca3af;background:#0e2f26}.dark .pagination button{color:#e5e7eb;background:#1f2937;border-color:#374151}.dark .loading-grid .skeleton-card{background:linear-gradient(90deg,#1f2937 25%,#26313f 50%,#1f2937 75%)}.dark .legal-page h1,.dark .legal-page h2{color:#f3f4f6}.dark .legal-page p,.dark .legal-page li{color:#c3c9d4}.dark .legal-meta,.dark .legal-footnote{color:#9ca3af}.dark .legal-page hr{border-color:#374151}.dark .card-price .period,.dark .card-price-note,.dark .card-plan{color:#9ca3af}.dark .card-divider{border-color:#374151}.dark .pricing-testimonial-text{color:#e5e7eb}.dark .payment-result-card p{color:#9ca3af}.dark .payment-result-card .expiry-note{background:#111827}.dark .payment-result-card .expiry-note strong{color:#f3f4f6}@media (width<=900px){.side-nav{box-shadow:none;transform:translate(-100%)}.side-nav.open{transform:translate(0);box-shadow:0 0 40px #00000040}.side-nav-scrim{z-index:99;background:#0006;display:block;position:fixed;inset:0}.side-main{margin-left:0}.side-nav-toggle{display:inline-flex}.top-header{gap:10px;padding:0 14px}.top-search{display:none}}@media (width<=560px){.hide-sm{display:none}}@media (width<=480px){.top-guru{display:none}}.legal-page{max-width:720px;margin:0 auto}.legal-page h1{margin-bottom:6px;font-size:1.75rem}.legal-meta{color:var(--muted);margin-bottom:32px;font-size:.85rem}.legal-page h2{margin:28px 0 10px;font-size:1.15rem}.legal-page p{color:#374151;margin-bottom:12px;font-size:.95rem;line-height:1.7}.legal-page ul{margin-bottom:12px;padding-left:22px}.legal-page li{color:#374151;margin-bottom:5px;font-size:.95rem;line-height:1.7}.legal-page a{color:var(--brand-dark)}.legal-page hr{border:none;border-top:1px solid var(--line);margin:28px 0}.legal-footnote{color:var(--muted);font-size:.82rem}.pricing-page{max-width:1080px;margin:0 auto}.billing-toggle{justify-content:center;align-items:center;gap:14px;margin:8px 0 32px;display:flex}.toggle-label{color:var(--muted);font-size:.9rem;font-weight:650}.toggle-label.active{color:var(--ink)}.toggle-switch{background:var(--brand);cursor:pointer;border:0;border-radius:14px;width:48px;height:26px;padding:0;position:relative}.toggle-switch:after{content:"";background:#fff;border-radius:50%;width:20px;height:20px;transition:transform .2s;position:absolute;top:3px;left:3px}.toggle-switch.annual:after{transform:translate(22px)}.save-badge{color:#15803d;background:#dcfce7;border-radius:10px;padding:2px 8px;font-size:.68rem;font-weight:700}.pricing-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media (width<=900px){.pricing-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}}.pricing-card{border:2px solid var(--line);background:#fff;border-radius:18px;padding:30px 26px;position:relative}.pricing-card.popular{border-color:var(--brand);box-shadow:0 0 0 4px #16a37f14,0 12px 48px #0000001f}.popular-badge{background:var(--brand);color:#fff;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;border-radius:20px;padding:4px 16px;font-size:.68rem;font-weight:800;position:absolute;top:-14px;left:50%;transform:translate(-50%)}.card-plan{text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin-bottom:10px;font-size:.8rem;font-weight:700}.card-plan.popular-plan{color:var(--brand-dark)}.card-price{align-items:baseline;gap:4px;margin-bottom:6px;display:flex}.card-price .currency{font-size:1.3rem;font-weight:700}.card-price .amount{font-size:2.8rem;font-weight:900;line-height:1}.card-price .period{color:var(--muted);font-size:.85rem}.card-price-note{color:var(--muted);min-height:18px;margin-bottom:6px;font-size:.78rem}.card-saving{color:#15803d;background:#dcfce7;border-radius:10px;margin-bottom:20px;padding:3px 10px;font-size:.75rem;font-weight:700;display:inline-block}.card-divider{border:none;border-top:1px solid var(--line);margin:18px 0}.card-features{flex-direction:column;gap:10px;margin-bottom:26px;padding:0;list-style:none;display:flex}.card-features li{align-items:flex-start;gap:9px;font-size:.82rem;display:flex}.card-features li .ok{color:var(--brand);flex-shrink:0;margin-top:1px}.card-features li .no{color:#cbd5e1;flex-shrink:0;margin-top:1px}.card-features li .muted{color:var(--muted)}.pricing-card .button{width:100%}.pricing-card .button.accent{color:#fff;background:var(--brand)}.pricing-card .button.accent:hover{background:var(--brand-dark)}.card-saving.hidden{visibility:hidden}.pricing-hero{text-align:center;max-width:560px;margin:0 auto 28px}.pricing-badge{color:var(--brand-dark);background:#e6f7f2;border-radius:20px;align-items:center;gap:6px;margin-bottom:16px;padding:5px 16px;font-size:.82rem;font-weight:700;display:inline-flex}.pricing-hero h1{margin-bottom:12px;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:900}.pricing-hero>p:not(.pricing-badge):not(.pricing-hero-note){color:var(--muted);margin-bottom:8px;font-size:.98rem;line-height:1.65}.pricing-hero-note{color:var(--muted);font-size:.8rem}.pricing-hero-note i{color:var(--brand)}.pricing-social{flex-wrap:wrap;justify-content:center;align-items:center;gap:24px;margin:48px 0 8px;display:flex}.pricing-social-item{color:var(--muted);align-items:center;gap:6px;font-size:.82rem;font-weight:650;display:flex}.pricing-social-item i{color:var(--brand);font-size:1rem}.pricing-stars{color:#f59e0b;letter-spacing:2px;font-size:1rem}.pricing-testimonials{max-width:900px;margin:48px auto 0}.pricing-testimonials h2{text-align:center;margin-bottom:28px;font-size:clamp(1.25rem,2.4vw,1.6rem);font-weight:800}.pricing-testimonial-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media (width<=768px){.pricing-testimonial-grid{grid-template-columns:1fr}}.pricing-testimonial-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:22px 20px;box-shadow:0 4px 24px #0000000f}.pricing-testimonial-text{color:var(--ink);margin:10px 0 16px;font-size:.85rem;font-style:italic;line-height:1.7}.pricing-testimonial-author{align-items:center;gap:10px;display:flex}.pricing-testimonial-avatar{background:linear-gradient(135deg, var(--brand), var(--brand-dark));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:.85rem;font-weight:800;display:flex}.pricing-testimonial-name{font-size:.82rem;font-weight:700}.pricing-testimonial-role{color:var(--muted);font-size:.72rem}.pricing-cta{text-align:center;background:linear-gradient(135deg, var(--brand), var(--brand-dark));color:#fff;border-radius:20px;margin:56px 0 8px;padding:48px 24px}.pricing-cta h2{margin-bottom:10px;font-size:clamp(1.3rem,2.8vw,1.8rem);font-weight:800}.pricing-cta p{opacity:.88;max-width:520px;margin-bottom:22px;margin-left:auto;margin-right:auto}.pricing-cta .button.primary{color:var(--brand-dark);background:#fff}.pricing-cta .button.primary:hover{background:#f1f5f9}.payment-result-card{text-align:center;background:#fff;border-radius:20px;max-width:480px;margin:0 auto;padding:clamp(28px,5vw,40px);box-shadow:0 8px 40px #0000001a}.payment-result-icon{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;margin:0 auto 20px;font-size:34px;display:flex}.payment-result-card.success .payment-result-icon{background:linear-gradient(135deg, var(--brand), var(--brand-dark))}.payment-result-card.failure .payment-result-icon{background:linear-gradient(135deg,#ef4444,#b91c1c)}.payment-result-card h1{margin-bottom:8px;font-size:1.6rem}.payment-result-card p{color:var(--muted);margin-bottom:20px;line-height:1.6}.payment-result-card .plan-badge{color:#15803d;background:#dcfce7;border-radius:30px;align-items:center;gap:8px;margin-bottom:20px;padding:8px 20px;font-size:.85rem;font-weight:700;display:inline-flex}.payment-result-card .expiry-note{color:var(--muted);background:#f8fafc;border-radius:10px;margin-bottom:24px;padding:12px 16px;font-size:.8rem}.payment-result-card .expiry-note strong{color:var(--ink)}.payment-result-actions{flex-direction:column;gap:10px;display:flex}.ivp-card{border:1px solid var(--line);background:#fff;border-radius:16px;margin-top:20px;padding:23px;box-shadow:0 3px 14px #0f172a09}.ivp-card h2{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);align-items:center;gap:8px;margin:0 0 6px;font-size:15px;display:flex}.ivp-sub{color:var(--muted);margin:0 0 16px;font-size:13px}.ivp-dropzone{border:1.5px dashed var(--line);cursor:pointer;color:var(--muted);text-align:center;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:32px 20px;font-size:13px;transition:border-color .15s,background .15s;display:flex}.ivp-dropzone:hover{border-color:var(--brand);background:#f4fbf8}.ivp-dropzone i{color:var(--brand);font-size:26px}.ivp-dropzone input{opacity:0;width:1px;height:1px;position:absolute}.ivp-player-wrap{flex-direction:column;gap:12px;display:flex}.ivp-player{background:#0f172a;border-radius:12px;width:100%;max-height:320px}.ivp-actions{flex-wrap:wrap;gap:8px;display:flex}.ivp-actions label.button{cursor:pointer;position:relative}.ivp-actions input[type=file]{opacity:0;width:1px;height:1px;position:absolute}.dark .ivp-card{background:#1f2937;border-color:#374151}.dark .ivp-dropzone{border-color:#374151}.dark .ivp-dropzone:hover{background:#111827}.acct-hero{color:#fff;background:linear-gradient(130deg,#063f35,#16a37f);border-radius:20px;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;margin-bottom:22px;padding:30px;display:grid;box-shadow:0 12px 34px #0f172a14}.acct-avatar{object-fit:cover;color:#075b49;background:#d7f8ed;border:4px solid #ffffffc7;border-radius:50%;flex-shrink:0;place-items:center;width:112px;height:112px;font-size:40px;font-weight:850;display:grid}.acct-identity h1{margin:0 0 6px;font-size:28px}.acct-headline{opacity:.9;margin:0 0 12px}.acct-meta{opacity:.88;flex-wrap:wrap;gap:16px;font-size:13px;display:flex}.acct-edit-btn{color:#075b49;white-space:nowrap;cursor:pointer;background:#fff;border:none;border-radius:10px;padding:11px 17px;font-size:14px;font-weight:800;text-decoration:none}.acct-completion{border:1px solid var(--line);background:#fff;border-radius:14px;margin:0 0 22px;padding:18px 20px}.acct-completion-head{justify-content:space-between;margin-bottom:10px;font-weight:750;display:flex}.acct-track{background:#e6edf1;border-radius:20px;height:9px;overflow:hidden}.acct-bar{background:linear-gradient(90deg,#16a37f,#35d1a9);border-radius:20px;height:100%}.acct-grid{grid-template-columns:1.35fr .85fr;gap:20px;display:grid}.acct-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:23px;box-shadow:0 3px 14px #0f172a09}.acct-card h2{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 17px;font-size:15px}.acct-bio{white-space:pre-line;margin:0;line-height:1.75}.acct-empty{color:var(--muted);margin:0;font-style:italic}.acct-facts{grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;display:grid}.acct-fact{border-top:1px solid var(--line);padding-top:14px}.acct-label{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:11px;font-weight:800}.acct-value{margin-top:5px;font-weight:650}.acct-row{border-bottom:1px solid var(--line);justify-content:space-between;gap:18px;padding:12px 0;display:flex}.acct-row:last-child{border:0}.acct-row span:first-child{color:var(--muted)}.acct-row span:last-child{text-align:right;font-weight:650}.acct-membership{color:#0e7a5f;background:#e8f8f3;border-radius:20px;padding:4px 10px;font-size:12px;font-weight:850;display:inline-block}.acct-website{color:var(--brand);word-break:break-all}@media (width<=760px){.acct-hero{text-align:center;grid-template-columns:1fr}.acct-avatar{margin:auto}.acct-meta{justify-content:center}.acct-edit-btn{justify-self:center}.acct-grid,.acct-facts{grid-template-columns:1fr}}.dark .acct-completion,.dark .acct-card{background:#1f2937;border-color:#374151}.dark .acct-track{background:#374151}.dark .acct-fact,.dark .acct-row{border-color:#374151}.dark .acct-value{color:#f3f4f6}.an-page{max-width:1180px;margin:0 auto}.an-stat-row{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;display:grid}.an-stat-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 3px #00000012}.an-stat-icon{margin-bottom:8px;font-size:20px}.an-stat-label{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin-bottom:8px;font-size:11px;font-weight:700}.an-stat-value{font-size:28px;font-weight:800;line-height:1}.an-stat-value.accent{color:var(--brand)}.an-stat-value.small{font-size:18px}.an-charts-row{grid-template-columns:2fr 1fr;gap:20px;margin-bottom:24px;display:grid}.an-chart-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 3px #00000012}.an-chart-title{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin-bottom:16px;font-size:12px;font-weight:700}.an-chart-wrap{height:220px;position:relative}.an-chart-wrap.donut{height:180px}.an-chart-wrap canvas{max-width:100%}.an-legend{flex-direction:column;gap:8px;margin-top:16px;display:flex}.an-legend-item{align-items:center;gap:10px;font-size:13px;display:flex}.an-legend-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.an-legend-name{flex:1;font-weight:500}.an-legend-time{color:var(--muted);white-space:nowrap;font-weight:600}.an-empty{text-align:center;color:var(--muted);padding:48px 20px}.an-empty i{margin-bottom:12px;font-size:36px;display:block}.an-table-card{border:1px solid var(--line);background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 3px #00000012}.an-table-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.an-table-title{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-size:12px;font-weight:700}.an-table-wrap{overflow-x:auto}.an-table-wrap table{border-collapse:collapse;width:100%;font-size:13px}.an-table-wrap thead th{background:var(--bg);text-align:left;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);border-bottom:1px solid var(--line);white-space:nowrap;padding:10px 16px;font-size:11px;font-weight:700}.an-table-wrap tbody td{border-bottom:1px solid var(--line);vertical-align:middle;padding:11px 16px}.an-table-wrap tbody tr:last-child td{border-bottom:none}.an-table-wrap tbody tr:hover td{background:var(--bg)}.an-td-date{white-space:nowrap;font-weight:600}.an-td-total{color:var(--brand);white-space:nowrap;font-weight:700}.an-td-sub{color:var(--muted);white-space:nowrap}.an-td-dash{color:var(--line)}@media (width<=900px){.an-charts-row{grid-template-columns:1fr}.an-stat-row{grid-template-columns:repeat(2,1fr)}}.dark .an-stat-card,.dark .an-chart-card,.dark .an-table-card{background:#1f2937;border-color:#374151}.dark .an-table-header,.dark .an-table-wrap tbody td{border-color:#374151}.dark .an-td-date{color:#e5e7eb}.dark .an-td-dash{color:#374151}.landing-page{--brand:#16a37f;--brand-dark:#0e7a5f;--brand-light:#e6f7f2;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--surface:#fff;--bg:#f8fafc;--success:#16a34a;--success-light:#dcfce7;--warning:#d97706;--warning-light:#fef3c7;--danger:#dc2626;--danger-light:#fee2e2;--radius:14px;background:var(--surface);color:var(--ink);font-family:Inter,sans-serif;overflow-x:clip}.landing-page *,.landing-page :before,.landing-page :after{box-sizing:border-box}.landing-page .lp-nav{z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);background:#ffffffeb;justify-content:space-between;align-items:center;height:64px;padding:0 32px;display:flex;position:sticky;top:0}.landing-page .lp-nav-brand{color:var(--ink);letter-spacing:-.3px;align-items:center;gap:9px;font-size:19px;font-weight:800;text-decoration:none;display:flex}.landing-page .lp-nav-brand i{color:var(--brand);font-size:21px}.landing-page .lp-nav-center{align-items:center;gap:4px;display:flex}.landing-page .lp-nav-link{color:var(--muted);border-radius:8px;align-items:center;gap:6px;padding:8px 14px;font-size:14px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.landing-page .lp-nav-link:hover{background:var(--bg);color:var(--ink)}.landing-page .lp-nav-right{align-items:center;gap:12px;display:flex}.landing-page .lp-btn-nav-login{color:var(--ink);border-radius:8px;padding:9px 16px;font-size:14px;font-weight:600;text-decoration:none;transition:all .15s}.landing-page .lp-btn-nav-login:hover{background:var(--bg)}.landing-page .lp-btn-nav-signup{color:#fff;background:var(--brand);border-radius:8px;padding:9px 18px;font-size:14px;font-weight:700;text-decoration:none;transition:background .15s}.landing-page .lp-btn-nav-signup:hover{background:var(--brand-dark)}.landing-page .lp-btn-dark-toggle{border:1.5px solid var(--line);cursor:pointer;color:var(--muted);background:0 0;border-radius:8px;padding:7px 10px;font-size:14px;line-height:1;transition:all .15s}.landing-page .lp-btn-dark-toggle:hover{background:var(--bg)}.landing-page.dark{--ink:#f1f5f9;--muted:#94a3b8;--line:#334155;--surface:#1e293b;--bg:#0f172a}.landing-page.dark .lp-nav{background:#0f172aeb}.landing-page.dark .lp-subj-tabs-wrap{background:var(--bg)}.landing-page.dark .lp-mockup-chrome{background:#0f172a}.landing-page.dark .lp-mockup-url{color:var(--muted);background:#1e293b}.landing-page.dark .lp-mockup-window{background:var(--surface)}.landing-page.dark .lp-mockup-topbar,.landing-page.dark .lp-mockup-pill{background:#0f172a}.landing-page.dark .lp-testimonials-section{background:var(--bg)}.landing-page.dark .lp-testimonial-text{color:var(--muted)}.landing-page .lp-hero{text-align:center;padding:96px 24px 84px;position:relative;overflow:hidden}.landing-page .lp-hero:before{content:"";z-index:0;background:radial-gradient(ellipse 900px 480px at 50% -10%, var(--brand-light) 0%, transparent 65%);position:absolute;inset:0}.landing-page .lp-hero-badge{z-index:1;background:var(--brand-light);color:var(--brand);border-radius:20px;align-items:center;gap:8px;margin-bottom:28px;padding:7px 18px;font-size:13px;font-weight:700;display:inline-flex;position:relative}.landing-page .lp-hero h1{z-index:1;text-align:center;max-width:920px;color:var(--ink);letter-spacing:-1.5px;margin:0 auto 24px;font-size:clamp(36px,5.2vw,62px);font-weight:900;line-height:1.08;position:relative}.landing-page .lp-hero h1 span{color:var(--brand)}.landing-page .lp-hero-sub{z-index:1;color:var(--muted);max-width:600px;margin:0 auto 40px;font-size:19px;line-height:1.65;position:relative}.landing-page .lp-hero-cta{z-index:1;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:22px;display:flex;position:relative}.landing-page .lp-btn-primary-hero{background:var(--brand);color:#fff;border-radius:10px;align-items:center;gap:9px;padding:16px 36px;font-size:16px;font-weight:700;text-decoration:none;transition:all .2s;display:inline-flex;box-shadow:0 8px 24px #16a37f47}.landing-page .lp-btn-primary-hero:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 28px #16a37f57}.landing-page .lp-btn-secondary-hero{border:1.5px solid var(--line);color:var(--ink);background:#fff;border-radius:10px;padding:16px 36px;font-size:16px;font-weight:700;text-decoration:none;transition:all .2s}.landing-page .lp-btn-secondary-hero:hover{border-color:var(--brand);color:var(--brand)}.landing-page .lp-hero-note{z-index:1;color:var(--muted);flex-wrap:wrap;justify-content:center;align-items:center;gap:22px;font-size:13.5px;display:flex;position:relative}.landing-page .lp-hero-note span{align-items:center;gap:6px;display:flex}.landing-page .lp-hero-note i{color:var(--success)}.landing-page .lp-social-bar{background:var(--ink);color:#fff;flex-wrap:wrap;justify-content:center;align-items:center;gap:36px;padding:16px 24px;font-size:13.5px;font-weight:600;display:flex}.landing-page .lp-social-bar-item{opacity:.92;align-items:center;gap:8px;display:flex}.landing-page .lp-social-bar-item i{color:#86efac;font-size:16px}.landing-page .lp-stars{color:#fbbf24;letter-spacing:1px}.landing-page .lp-subj-tabs-wrap{background:var(--bg);border-bottom:1px solid var(--line)}.landing-page .lp-subj-tabs{-webkit-overflow-scrolling:touch;gap:4px;max-width:1120px;margin:0 auto;padding:0 32px;display:flex;overflow-x:auto}.landing-page .lp-subj-tabs::-webkit-scrollbar{display:none}.landing-page .lp-subj-tab{color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2.5px solid #0000;flex-shrink:0;padding:18px 20px 16px;font-family:inherit;font-size:14px;font-weight:600;transition:all .15s}.landing-page .lp-subj-tab:hover{color:var(--ink)}.landing-page .lp-subj-tab.active{color:var(--brand);border-bottom-color:var(--brand)}.landing-page .lp-subj-content{max-width:1120px;margin:0 auto;padding:32px 32px 40px}.landing-page .lp-subj-content-label{color:var(--ink);margin-bottom:18px;font-size:14px;font-weight:700}.landing-page .lp-subj-topics-grid{grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px;display:grid}.landing-page .lp-subj-topic-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;align-items:flex-start;gap:12px;padding:16px 18px;transition:all .15s;display:flex}.landing-page .lp-subj-topic-card:hover{border-color:var(--brand);transform:translateY(-1px);box-shadow:0 4px 16px #16a37f14}.landing-page .lp-subj-topic-icon{background:var(--brand-light);width:34px;height:34px;color:var(--brand);border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;font-size:15px;display:flex}.landing-page .lp-subj-topic-icon.premium{background:var(--warning-light);color:var(--warning)}.landing-page .lp-subj-topic-title{color:var(--ink);margin-bottom:4px;font-size:14px;font-weight:700;line-height:1.4}.landing-page .lp-subj-topic-meta{color:var(--muted);font-size:12px}.landing-page .lp-badge-free{background:var(--success-light);color:#15803d;text-transform:uppercase;letter-spacing:.3px;border-radius:8px;margin-left:6px;padding:2px 7px;font-size:9.5px;font-weight:800;display:inline-block}.landing-page .lp-badge-premium{background:var(--warning-light);color:#92400e;text-transform:uppercase;letter-spacing:.3px;border-radius:8px;margin-left:6px;padding:2px 7px;font-size:9.5px;font-weight:800;display:inline-block}.landing-page .lp-subj-view-all{color:var(--brand);align-items:center;gap:6px;padding:8px 0;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.landing-page .lp-subj-view-all:hover{text-decoration:underline}.landing-page .lp-preview-section{text-align:center;background:var(--surface);padding:96px 24px}.landing-page .lp-section-label{color:var(--brand);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px;font-size:13px;font-weight:700}.landing-page .lp-section-title{color:var(--ink);letter-spacing:-.6px;margin-bottom:14px;font-size:clamp(26px,3.6vw,40px);font-weight:800}.landing-page .lp-section-sub{color:var(--muted);max-width:540px;margin-bottom:52px;margin-left:auto;margin-right:auto;font-size:16.5px;line-height:1.6}.landing-page .lp-mockup-frame{background:var(--surface);border-radius:16px;max-width:900px;margin:0 auto;overflow:hidden;box-shadow:0 30px 80px #0f172a2e,0 0 0 1px #0f172a0f}.landing-page .lp-mockup-chrome{border-bottom:1px solid var(--line);background:#f1f5f9;align-items:center;gap:10px;padding:11px 16px;display:flex}.landing-page .lp-mockup-dots{gap:6px;display:flex}.landing-page .lp-mockup-dot{border-radius:50%;width:12px;height:12px}.landing-page .lp-dot-red{background:#ff5f57}.landing-page .lp-dot-yellow{background:#febc2e}.landing-page .lp-dot-green{background:#28c840}.landing-page .lp-mockup-url{border:1px solid var(--line);color:var(--muted);text-align:center;background:#fff;border-radius:6px;flex:1;max-width:300px;margin:0 auto;padding:6px 12px;font-family:monospace;font-size:11.5px}.landing-page .lp-mockup-window{background:var(--surface)}.landing-page .lp-mockup-topbar{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;padding:13px 20px;display:flex}.landing-page .lp-mockup-logo{color:var(--brand);font-size:15px;font-weight:800}.landing-page .lp-mockup-nav-pills{gap:6px;display:flex}.landing-page .lp-mockup-pill{color:var(--muted);background:var(--bg);border-radius:6px;padding:5px 11px;font-size:11.5px;font-weight:600}.landing-page .lp-mockup-pill.active{background:var(--brand-light);color:var(--brand);font-weight:700}.landing-page .lp-mockup-streak{color:#ea580c;background:#fff7ed;border-radius:6px;padding:5px 11px;font-size:11.5px;font-weight:700}.landing-page .lp-mockup-body{padding:18px 20px}.landing-page .lp-mockup-subject-card{border:1px solid var(--line);background:#fff;border-radius:12px;margin-bottom:12px;padding:16px 18px;box-shadow:0 1px 4px #0000000a}.landing-page .lp-mockup-subject-head{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.landing-page .lp-mockup-subject-name{color:var(--ink);align-items:center;gap:7px;font-size:13.5px;font-weight:700;display:flex}.landing-page .lp-mockup-subject-badge{background:var(--brand-light);color:var(--brand);border-radius:10px;padding:2px 9px;font-size:10.5px;font-weight:700}.landing-page .lp-mockup-pct{color:var(--success);font-size:13.5px;font-weight:800}.landing-page .lp-mockup-bar-track{background:var(--bg);border-radius:6px;height:6px;margin-bottom:12px;overflow:hidden}.landing-page .lp-mockup-bar-fill{background:var(--success);border-radius:6px;height:100%}.landing-page .lp-mockup-topic-row{border-bottom:1px solid var(--bg);justify-content:space-between;align-items:center;gap:8px;padding:9px 6px;display:flex}.landing-page .lp-mockup-topic-row:last-child{border-bottom:none}.landing-page .lp-mockup-topic-title{color:var(--ink);flex:1;align-items:center;gap:7px;font-size:13px;font-weight:600;display:flex}.landing-page .lp-mockup-topic-title i{color:var(--success);font-size:13px}.landing-page .lp-mockup-topic-badges{gap:5px;display:flex}.landing-page .lp-mockup-badge{border-radius:8px;padding:3px 7px;font-size:10px;font-weight:700}.landing-page .lp-badge-easy{background:var(--success-light);color:#15803d}.landing-page .lp-badge-medium{background:var(--warning-light);color:#92400e}.landing-page .lp-badge-hard,.landing-page .lp-badge-lock{background:var(--danger-light);color:#b91c1c}.landing-page .lp-badge-done{background:var(--brand-light);color:var(--brand)}.landing-page .lp-mockup-check-btn{background:var(--success-light);width:23px;height:23px;color:var(--success);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;display:flex}.landing-page .lp-section{max-width:1120px;margin:0 auto;padding:96px 24px}.landing-page .lp-features-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;display:grid}.landing-page .lp-feature-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:box-shadow .2s,transform .2s,border-color .2s}.landing-page .lp-feature-card:hover{border-color:var(--brand-light);transform:translateY(-3px);box-shadow:0 12px 32px #0f172a14}.landing-page .lp-feature-icon{background:var(--brand-light);border-radius:12px;justify-content:center;align-items:center;width:46px;height:46px;margin-bottom:18px;font-size:22px;display:flex}.landing-page .lp-feature-card h3{color:var(--ink);margin-bottom:9px;font-size:17px;font-weight:700}.landing-page .lp-feature-card p{color:var(--muted);font-size:14.5px;line-height:1.65}.landing-page .lp-how-section{color:#fff;background:linear-gradient(#0f172a 0%,#1e1b4b 100%);padding:96px 24px}.landing-page .lp-how-section .lp-section-label{color:#86efac}.landing-page .lp-how-section .lp-section-title{color:#fff}.landing-page .lp-steps-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:30px;max-width:940px;margin:0 auto;display:grid}.landing-page .lp-step-card{text-align:center}.landing-page .lp-step-num{color:#fff;background:#ffffff1a;border:1.5px solid #ffffff38;border-radius:50%;justify-content:center;align-items:center;width:46px;height:46px;margin:0 auto 18px;font-size:18px;font-weight:800;display:flex}.landing-page .lp-step-card h3{color:#f1f5f9;margin-bottom:9px;font-size:16px;font-weight:700}.landing-page .lp-step-card p{color:#94a3b8;font-size:13.5px;line-height:1.65}.landing-page .lp-testimonials-section{background:var(--bg);padding:96px 24px}.landing-page .lp-testimonials-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;max-width:1000px;margin:0 auto;display:grid}.landing-page .lp-testimonial-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:0 2px 10px #0f172a0a}.landing-page .lp-testimonial-stars{color:#f59e0b;letter-spacing:2px;margin-bottom:14px;font-size:15px}.landing-page .lp-testimonial-text{color:#334155;margin-bottom:20px;font-size:14.5px;line-height:1.7}.landing-page .lp-testimonial-author{align-items:center;gap:12px;display:flex}.landing-page .lp-testimonial-avatar{background:linear-gradient(135deg, var(--brand), var(--brand-dark));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:15px;font-weight:800;display:flex}.landing-page .lp-testimonial-name{color:var(--ink);font-size:14.5px;font-weight:700}.landing-page .lp-testimonial-role{color:var(--muted);font-size:12.5px}.landing-page .lp-cta-section{background:linear-gradient(135deg, var(--brand) 0%, #6d28d9 100%);text-align:center;color:#fff;padding:96px 24px}.landing-page .lp-cta-section h2{letter-spacing:-.8px;margin-bottom:16px;font-size:clamp(28px,4vw,44px);font-weight:900}.landing-page .lp-cta-section p{opacity:.88;max-width:480px;margin-bottom:40px;margin-left:auto;margin-right:auto;font-size:17.5px}.landing-page .lp-cta-buttons{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.landing-page .lp-btn-cta-white{color:var(--brand);background:#fff;border-radius:10px;align-items:center;gap:9px;padding:16px 40px;font-size:16px;font-weight:700;text-decoration:none;transition:all .2s;display:inline-flex}.landing-page .lp-btn-cta-white:hover{transform:translateY(-2px);box-shadow:0 12px 28px #0003}.landing-page .lp-btn-cta-outline{color:#fff;border:1.5px solid #ffffff80;border-radius:10px;align-items:center;gap:9px;padding:16px 40px;font-size:16px;font-weight:700;text-decoration:none;transition:all .2s;display:inline-flex}.landing-page .lp-btn-cta-outline:hover{background:#ffffff1a;border-color:#fff}.landing-page .lp-footer{background:var(--ink);color:#94a3b8;text-align:center;padding:32px 24px;font-size:13.5px;line-height:2}.landing-page .lp-footer a{color:#86efac;text-decoration:none}.landing-page .lp-footer a:hover{text-decoration:underline}@media (width<=768px){.landing-page .lp-nav{padding:0 16px}.landing-page .lp-nav-center{display:none}.landing-page .lp-hero{padding:64px 20px 56px}.landing-page .lp-preview-section,.landing-page .lp-section,.landing-page .lp-testimonials-section,.landing-page .lp-how-section,.landing-page .lp-cta-section{padding:56px 20px}.landing-page .lp-mockup-nav-pills{display:none}.landing-page .lp-mockup-frame{border-radius:10px}.landing-page .lp-social-bar{gap:16px;padding:12px 16px}.landing-page .lp-features-grid,.landing-page .lp-testimonials-grid{grid-template-columns:1fr}.landing-page .lp-subj-tabs{padding:0 16px}.landing-page .lp-subj-content{padding:20px 16px 28px}.landing-page .lp-subj-topics-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=480px){.landing-page .lp-nav{height:56px;padding:0 12px}.landing-page .lp-nav-brand{font-size:17px}.landing-page .lp-btn-nav-login,.landing-page .lp-btn-nav-signup{padding:7px 13px;font-size:12.5px}.landing-page .lp-hero{padding:52px 16px 44px}.landing-page .lp-hero-sub{margin-bottom:32px;font-size:16px}.landing-page .lp-hero-cta{flex-direction:column;align-items:stretch;gap:10px}.landing-page .lp-btn-primary-hero,.landing-page .lp-btn-secondary-hero{text-align:center;justify-content:center;padding:14px 20px;font-size:15px}.landing-page .lp-hero-note{gap:10px;font-size:12px}.landing-page .lp-social-bar{justify-content:flex-start;gap:10px;font-size:12px}.landing-page .lp-social-bar-item{flex:0 0 calc(50% - 10px)}.landing-page .lp-steps-grid{grid-template-columns:1fr 1fr}.landing-page .lp-cta-buttons{flex-direction:column;align-items:stretch;gap:10px}.landing-page .lp-btn-cta-white,.landing-page .lp-btn-cta-outline{text-align:center;justify-content:center;padding:14px 20px}.landing-page .lp-section{padding:48px 16px}.landing-page .lp-mockup-body{padding:10px 12px}.landing-page .lp-subj-topics-grid{grid-template-columns:1fr}}.dash-greeting{margin-bottom:24px}.dash-greeting h1{color:var(--ink);letter-spacing:-.02em;margin:0 0 6px;font-size:27px;font-weight:800}.dash-greeting p{color:var(--muted);margin:0;font-size:14.5px;font-style:italic}.dash-card{border:1px solid var(--line);box-shadow:var(--shadow-md);background:#fff;border-radius:18px;padding:22px;position:relative}.dash-card-head{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);align-items:center;gap:8px;margin-bottom:16px;font-size:12px;font-weight:800;display:flex}.dash-card-head i{color:var(--brand)}.dash-continue-card{flex-direction:column;display:flex;overflow:hidden}.dash-continue-solo{margin-bottom:18px}.dash-continue-card:before{content:"";background:radial-gradient(circle, var(--brand-glow) 0%, transparent 70%);pointer-events:none;border-radius:50%;width:220px;height:220px;position:absolute;top:-60px;left:-60px}.dash-continue-subject{letter-spacing:-.01em;margin-bottom:14px;font-size:21px;font-weight:800;position:relative}.dash-progress-track{background:#eef1f5;border-radius:999px;height:9px;margin-bottom:9px;position:relative;overflow:hidden;box-shadow:inset 0 1px 2px #0f172a0f}.dash-progress-fill{background:linear-gradient(90deg, var(--brand), #34d399);border-radius:999px;height:100%}.dash-continue-meta{color:var(--muted);margin-bottom:18px;font-size:13px;font-weight:600;position:relative}.dash-empty{color:var(--muted);margin-bottom:16px;font-size:14px}.dash-stats-row{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px;display:grid}.dash-stat{border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#fff;border-radius:16px;align-items:center;gap:14px;padding:17px 18px;display:flex}.dash-stat-icon{background:var(--brand-light);width:42px;height:42px;color:var(--brand);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;font-size:18px;display:flex}.dash-stat-icon.streak{background:var(--guru-light);color:var(--guru)}.dash-stat-value{letter-spacing:-.01em;font-size:21px;font-weight:800;line-height:1.2}.dash-stat-label{color:var(--muted);margin-top:2px;font-size:11.5px;font-weight:650}.dash-mid-row{grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;display:grid}.dash-notes-cta{background:linear-gradient(135deg,#fffbeb,#fef3c7);border-color:#fde68a;justify-content:space-between;align-items:center;gap:14px;display:flex}.dash-notes-cta h2{color:#78350f;margin:0 0 3px;font-size:15px;font-weight:800}.dash-notes-cta p{color:#92400e;margin:0;font-size:13px}.dash-quick-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.dash-quick-grid a{color:var(--ink);background:#f6f8fa;border-radius:11px;align-items:center;gap:10px;padding:11px 12px;font-size:13px;font-weight:650;text-decoration:none;transition:background .15s,color .15s;display:flex}.dash-quick-grid a:hover{background:var(--brand-light);color:var(--brand-dark)}.dash-quick-grid a i{width:26px;height:26px;color:var(--brand);background:#fff;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;display:flex}.dash-charts-row{grid-template-columns:1.4fr 1fr;gap:18px;margin-bottom:18px;display:grid}.dash-chart-wrap{height:220px;position:relative}.dash-chart-wrap.donut{max-width:200px;height:200px;margin:0 auto}.dash-section-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.dash-section-title{color:var(--ink);letter-spacing:-.01em;align-items:center;gap:8px;margin:0;font-size:18px;font-weight:800;display:flex}.dash-section-title i{color:var(--brand)}.dash-view-all{color:var(--brand);align-items:center;gap:6px;font-size:13px;font-weight:700;text-decoration:none;display:flex}.dash-view-all:hover{text-decoration:underline}.dash-empty-subjects{flex-direction:column;align-items:flex-start;gap:10px;display:flex}.dash-empty-subjects .dash-empty{margin-bottom:0}.dash-subject-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.dash-subject-grid article{border:1px solid var(--line);min-height:190px;box-shadow:var(--shadow-sm);background:#fff;border-radius:16px;flex-direction:column;padding:18px;transition:box-shadow .15s,transform .15s,border-color .15s;display:flex}.dash-subject-grid article:hover{border-color:var(--brand);box-shadow:var(--shadow-md);transform:translateY(-2px)}.dash-subject-grid h3{margin:0 0 4px;font-size:15px;font-weight:750}.dash-subject-grid small{color:var(--muted)}.dash-subject-grid p{color:var(--muted);flex:1;margin-top:12px;font-size:13px;line-height:1.5}.dash-subject-grid a.dash-subject-link{color:#fff;background:linear-gradient(135deg, var(--brand), var(--brand-dark));border-radius:8px;align-self:flex-start;align-items:center;gap:6px;padding:7px 14px;font-size:12px;font-weight:650;text-decoration:none;display:inline-flex}.dash-subj-progress-wrap{margin-top:12px}.dash-subj-progress-bar{background:#eef1f5;border-radius:999px;height:6px;margin-bottom:5px;overflow:hidden}.dash-subj-progress-fill{background:linear-gradient(90deg, var(--brand), #34d399);border-radius:999px;height:100%}.dash-subj-progress-label{color:var(--muted);font-size:11px;font-weight:600}.dash-subj-progress-label b{color:var(--brand);font-weight:700}@media (prefers-reduced-motion:reduce){.dash-subject-grid article,.dash-quick-grid a{transition:none}.dash-subject-grid article:hover{transform:none}}.dark .dash-card,.dark .dash-stat,.dark .dash-subject-grid article{background:#1f2937;border-color:#374151}.dark .dash-stat-icon.streak{color:#fbbf24;background:#3a2c0a}.dark .dash-quick-grid a{color:#e5e7eb;background:#111827}.dark .dash-quick-grid a i{background:#1f2937}.dark .dash-quick-grid a:hover{color:#34d399;background:#0e2f26}.dark .dash-notes-cta{background:linear-gradient(135deg,#3a2c0a,#453107);border-color:#78350f}.dark .dash-notes-cta h2{color:#fde68a}.dark .dash-notes-cta p{color:#fcd34d}.dark .dash-progress-track,.dark .dash-subj-progress-bar{background:#374151}@media (width<=900px){.dash-mid-row,.dash-charts-row{grid-template-columns:1fr}.dash-stats-row{grid-template-columns:repeat(2,1fr)}}@media (width<=600px){.dash-stats-row{grid-template-columns:1fr 1fr}.dash-quick-grid{grid-template-columns:1fr}}.auth-card-page{--ac-primary:#16a37f;--ac-primary-dark:#0e7a5f;--ac-primary-light:#e6f7f2;--ac-bg:#f4f6f9;--ac-surface:#fff;--ac-border:#e5e9ef;--ac-text:#1e2330;--ac-text-muted:#6b7280;--ac-danger:#ef4444;--ac-danger-light:#fef2f2;--ac-shadow-md:0 4px 24px #00000017;--ac-radius:16px;--ac-radius-sm:10px;color:var(--ac-text);background:var(--ac-bg);justify-content:center;align-items:center;min-height:100vh;padding:32px 16px;font-family:Inter,sans-serif;display:flex}.auth-card-page *,.auth-card-page :before,.auth-card-page :after{box-sizing:border-box}.dark .auth-card-page{--ac-bg:#0f172a;--ac-surface:#1e293b;--ac-border:#334155;--ac-text:#f1f5f9;--ac-text-muted:#94a3b8}.auth-card-page .ac-card{background:var(--ac-surface);border-radius:var(--ac-radius);box-shadow:var(--ac-shadow-md);width:100%;max-width:460px;padding:44px 40px}@media (width<=480px){.auth-card-page .ac-card{padding:28px 20px}}.auth-card-page .ac-brand{justify-content:center;align-items:center;gap:10px;margin-bottom:28px;text-decoration:none;display:flex}.auth-card-page .ac-brand-icon{background:var(--ac-primary);color:#fff;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:22px;display:flex}.auth-card-page .ac-brand-name{color:var(--ac-primary);letter-spacing:-.5px;font-size:22px;font-weight:800}.auth-card-page h2{color:var(--ac-text);text-align:center;margin:0 0 6px;font-size:20px;font-weight:700}.auth-card-page .ac-subtitle{color:var(--ac-text-muted);text-align:center;margin:0 0 28px;font-size:14px}.auth-card-page .ac-alert{border-radius:var(--ac-radius-sm);align-items:center;gap:8px;margin-bottom:20px;padding:12px 14px;font-size:13px;font-weight:600;display:flex}.auth-card-page .ac-alert-error{background:var(--ac-danger-light);color:#b91c1c;border:1px solid #fecaca}.auth-card-page .ac-alert-success{color:#166534;background:#f0fdf4;border:1px solid #bbf7d0}.auth-card-page .ac-alert-info{color:#1e40af;background:#eff6ff;border:1px solid #bfdbfe}.auth-card-page .ac-alert-warning{color:#92400e;background:#fffbeb;border:1px solid #fde68a}.auth-card-page .ac-alert-warning a{color:inherit;margin-left:4px;font-weight:700}.auth-card-page .ac-info-box{color:#1e40af;border-radius:var(--ac-radius-sm);background:#eff6ff;border:1px solid #bfdbfe;align-items:flex-start;gap:8px;margin-bottom:22px;padding:11px 14px;font-size:13px;display:flex}.auth-card-page .ac-form-group{margin-bottom:18px}.auth-card-page label{color:var(--ac-text);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.auth-card-page .ac-input-wrap{position:relative}.auth-card-page .ac-input-wrap input{border:1.5px solid var(--ac-border);border-radius:var(--ac-radius-sm);width:100%;color:var(--ac-text);background:var(--ac-surface);outline:none;padding:11px 14px 11px 40px;font-family:Inter,sans-serif;font-size:14px;transition:border-color .15s}.auth-card-page .ac-input-wrap input:focus{border-color:var(--ac-primary);box-shadow:0 0 0 3px var(--ac-primary-light)}.auth-card-page .ac-input-wrap input.is-error{border-color:var(--ac-danger)}.auth-card-page .ac-input-icon{color:var(--ac-text-muted);pointer-events:none;font-size:15px;position:absolute;top:50%;left:13px;transform:translateY(-50%)}.auth-card-page .ac-eye-toggle{color:var(--ac-text-muted);cursor:pointer;background:0 0;border:none;padding:0;font-size:15px;position:absolute;top:50%;right:13px;transform:translateY(-50%)}.auth-card-page .ac-eye-toggle:hover{color:var(--ac-primary)}.auth-card-page .ac-error-msg{color:var(--ac-danger);align-items:center;gap:4px;margin-top:5px;font-size:12px;display:flex}.auth-card-page .ac-hint{color:var(--ac-text-muted);margin-top:5px;font-size:12px}.auth-card-page .ac-strength-bar{background:#e5e9ef;border-radius:4px;height:4px;margin-top:8px;overflow:hidden}.auth-card-page .ac-strength-fill{border-radius:4px;height:100%;transition:width .3s,background .3s}.auth-card-page .ac-strength-label{margin-top:4px;font-size:11px;font-weight:600}.auth-card-page .ac-btn-primary{background:var(--ac-primary);color:#fff;border-radius:var(--ac-radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:7px;width:100%;padding:12px;font-family:Inter,sans-serif;font-size:15px;font-weight:700;transition:background .15s;display:flex}.auth-card-page .ac-btn-primary:hover{background:var(--ac-primary-dark)}.auth-card-page .ac-btn-primary:disabled{opacity:.65;cursor:wait}.auth-card-page .ac-divider{align-items:center;gap:12px;margin:22px 0 16px;display:flex}.auth-card-page .ac-divider:before,.auth-card-page .ac-divider:after{content:"";background:var(--ac-border);flex:1;height:1px}.auth-card-page .ac-divider span{color:var(--ac-text-muted);white-space:nowrap;font-size:12px;font-weight:500}.auth-card-page .ac-social-btns{flex-direction:column;gap:10px;display:flex}.auth-card-page .ac-btn-social{border:1.5px solid var(--ac-border);border-radius:var(--ac-radius-sm);width:100%;color:var(--ac-text);cursor:pointer;background:#fff;justify-content:center;align-items:center;gap:10px;padding:11px 16px;font-family:Inter,sans-serif;font-size:14px;font-weight:600;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.auth-card-page .ac-btn-social:hover{color:var(--ac-text);border-color:#94a3b8;box-shadow:0 2px 8px #00000014}.auth-card-page .ac-btn-social svg{flex-shrink:0;width:18px;height:18px}.auth-card-page .ac-footer-link{text-align:center;color:var(--ac-text-muted);margin-top:20px;font-size:13px}.auth-card-page .ac-footer-link a{color:var(--ac-primary);font-weight:600;text-decoration:none}.auth-card-page .ac-footer-link a:hover{text-decoration:underline}.lib-banner{color:#fff;border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;padding:28px 32px;display:flex;box-shadow:0 4px 16px #00000014}.lib-banner.notes{background:linear-gradient(135deg,#0e7a5f,#16a37f 55%,#22c997)}.lib-banner-label{text-transform:uppercase;letter-spacing:1px;color:#ffffffbf;margin-bottom:4px;font-size:11px;font-weight:700}.lib-banner-title{letter-spacing:-.3px;font-size:clamp(20px,3vw,28px);font-weight:800}.lib-banner-search{gap:8px;display:flex}.lib-banner-search input{border:none;border-radius:8px;outline:none;flex:1;min-width:200px;padding:9px 14px;font-size:13px;box-shadow:0 2px 8px #0000001f}.lib-banner-search button{color:#fff;cursor:pointer;background:#0003;border:none;border-radius:8px;padding:9px 16px;font-size:13px;font-weight:700}.lib-banner-search button:hover{background:#00000052}.lib-layout{align-items:flex-start;gap:20px;display:flex}.lib-sidebar{background:#fff;border-radius:14px;flex-shrink:0;width:220px;padding:18px 12px;position:sticky;top:20px;box-shadow:0 4px 16px #00000014}.lib-sidebar-stats{gap:8px;margin-bottom:18px;display:flex}.lib-sidebar-stat{background:var(--bg);text-align:center;border-radius:8px;flex:1;padding:10px 6px}.lib-sidebar-stat .val{color:var(--brand);font-size:22px;font-weight:800;line-height:1}.lib-sidebar-stat .lbl{color:var(--muted);margin-top:3px;font-size:10px;font-weight:600}.lib-sidebar-title{text-transform:uppercase;letter-spacing:.7px;color:var(--muted);margin-bottom:8px;padding:0 4px;font-size:11px;font-weight:700}.lib-sub-link{color:var(--ink);text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:7px;width:100%;margin-bottom:2px;padding:8px 10px;font-size:12px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.lib-sub-link:hover{color:var(--brand);background:#e6f7f2}.lib-sub-link.active{background:var(--brand);color:#fff;font-weight:700}.lib-sub-link.active .lib-cnt{color:#fff;background:#ffffff40;border-color:#0000}.lib-sub-link-all{border:1.5px solid var(--line);background:var(--bg);margin-bottom:6px;font-weight:600}.lib-cnt{background:var(--bg);color:var(--muted);border:1px solid var(--line);border-radius:10px;flex-shrink:0;margin-left:auto;padding:2px 7px;font-size:10px;font-weight:700}@media (width<=768px){.lib-sidebar{display:none}}.lib-content{flex:1;min-width:0}.lib-search-bar{gap:8px;margin-bottom:14px;display:flex}.lib-search-bar input{border:1.5px solid var(--line);border-radius:8px;outline:none;flex:1;padding:9px 14px;font-size:13px}.lib-search-bar input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #16a37f1f}.lib-search-bar button{background:var(--brand);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:9px 18px;font-size:13px;font-weight:600}.lib-search-bar button:hover{background:var(--brand-dark)}.lib-filter-banner{background:#e6f7f2;border:1px solid #a7f3d0;border-radius:8px;justify-content:space-between;align-items:center;margin-bottom:14px;padding:10px 16px;display:flex}.lib-filter-banner-text{color:var(--brand-dark);align-items:center;gap:6px;font-size:13px;font-weight:700;display:flex}.lib-note-group{background:#fff;border-radius:14px;margin-bottom:16px;overflow:hidden;box-shadow:0 4px 16px #00000014}.lib-note-group-header{border-bottom:1px solid var(--line);cursor:pointer;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:13px 20px;display:flex}.lib-note-group-left{align-items:center;gap:10px;display:flex}.lib-subject-badge{color:var(--brand-dark);background:#e6f7f2;border-radius:20px;align-items:center;gap:6px;padding:5px 14px;font-size:13px;font-weight:700;display:inline-flex}.lib-note-count{color:var(--muted);font-size:13px}.lib-chevron{color:var(--muted);transition:transform .2s}.lib-chevron.collapsed{transform:rotate(-90deg)}.lib-note-row{border-bottom:1px solid var(--line);align-items:center;gap:12px;padding:10px 20px;display:flex}.lib-note-row:last-child{border-bottom:none}.lib-note-row:hover{background:#f8fffe}.lib-row-icon{color:#f59e0b;background:#fef3c7;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;display:flex}.lib-row-body{flex:1;min-width:0}.lib-row-title{color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:700;text-decoration:none;display:block;overflow:hidden}.lib-row-title:hover{color:var(--brand);text-decoration:underline}.lib-row-preview{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;margin-top:1px;font-size:11px;overflow:hidden}.lib-row-date{color:var(--muted);white-space:nowrap;flex-shrink:0;align-items:center;gap:3px;font-size:11px;display:flex}.lib-row-actions{flex-shrink:0;gap:5px;display:flex}.lib-icon-btn{border:1.5px solid var(--line);width:30px;height:30px;color:var(--muted);background:#fff;border-radius:6px;justify-content:center;align-items:center;font-size:13px;text-decoration:none;transition:all .15s;display:flex}.lib-icon-btn:hover{color:var(--brand);border-color:var(--brand);background:#e6f7f2}.lib-hero{color:#fff;background:linear-gradient(135deg,#c2410c,#ea580c);border-radius:14px;align-items:center;gap:18px;margin-bottom:24px;padding:28px 24px;display:flex;box-shadow:0 4px 16px #00000014}.lib-hero-icon{flex-shrink:0;font-size:42px}.lib-hero-title{font-size:22px;font-weight:800}.lib-hero-sub{opacity:.88;margin-top:4px;font-size:13px}.lib-hero-count{background:#fff3;border-radius:20px;margin-top:8px;padding:3px 12px;font-size:12px;font-weight:700;display:inline-block}.lib-bm-list{flex-direction:column;gap:10px;display:flex}.lib-bm-card{background:#fff;border-left:4px solid #f97316;border-radius:14px;justify-content:space-between;align-items:center;gap:14px;padding:16px 20px;transition:all .18s;display:flex;box-shadow:0 4px 16px #00000014}.lib-bm-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a}.lib-bm-info{flex:1;min-width:0}.lib-bm-subject{text-transform:uppercase;letter-spacing:.6px;color:var(--brand);margin-bottom:4px;font-size:10px;font-weight:700}.lib-bm-title{color:var(--ink);margin-bottom:5px;font-size:15px;font-weight:700}.lib-bm-meta{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.lib-bm-tag{color:#5b21b6;background:#f5f3ff;border:1px solid #ddd6fe;border-radius:10px;padding:2px 8px;font-size:10px;font-weight:600}.lib-diff-badge{border-radius:10px;padding:2px 8px;font-size:10px;font-weight:700}.lib-diff-badge.easy{color:#15803d;background:#dcfce7;border:1px solid #bbf7d0}.lib-diff-badge.medium{color:#a16207;background:#fef9c3;border:1px solid #fde68a}.lib-diff-badge.hard{color:#b91c1c;background:#fee2e2;border:1px solid #fecaca}.lib-bm-date{color:var(--muted);align-items:center;gap:4px;font-size:11px;display:flex}.lib-bm-actions{flex-shrink:0;gap:8px;display:flex}.lib-btn-view{background:var(--brand);color:#fff;border-radius:8px;align-items:center;gap:5px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.lib-btn-view:hover{background:var(--brand-dark)}.lib-btn-remove{color:#ef4444;cursor:pointer;background:#fff5f5;border:1px solid #fecaca;border-radius:8px;align-items:center;gap:5px;padding:8px 12px;font-size:13px;font-weight:600;display:inline-flex}.lib-btn-remove:hover{background:#fee2e2}.lib-btn-remove:disabled{opacity:.5;cursor:wait}@media (width<=600px){.lib-bm-card{flex-direction:column;align-items:flex-start}.lib-bm-actions{width:100%}}.dark .lib-sidebar,.dark .lib-note-group,.dark .lib-bm-card{background:#1f2937}.dark .lib-sub-link{color:#e5e7eb}.dark .lib-sub-link:hover{color:#34d399;background:#0e2f26}.dark .lib-sub-link-all,.dark .lib-note-group-header,.dark .lib-note-row{border-color:#374151}.dark .lib-note-row:hover{background:#111827}.dark .lib-row-title,.dark .lib-bm-title{color:#f3f4f6}.dark .lib-icon-btn{color:#9ca3af;background:#111827;border-color:#374151}.dark .lib-icon-btn:hover{color:#34d399;background:#0e2f26;border-color:#34d399}.dark .lib-filter-banner{background:#0e2f26;border-color:#14532d}.dark .lib-btn-remove{background:#2a1414;border-color:#4a1f1f}.dark .lib-btn-remove:hover{background:#3a1a1a}.cat-page-banner{text-align:center;color:#fff;background:linear-gradient(135deg,#0369a1,#0284c7 55%,#0ea5e9);border-radius:14px;margin-bottom:20px;padding:32px 24px}.cat-page-banner-title{letter-spacing:-.3px;justify-content:center;align-items:center;gap:8px;margin-bottom:8px;font-size:clamp(18px,3vw,26px);font-weight:800;display:flex}.cat-page-banner-sub{opacity:.88;font-size:13px}.cat-search-stats-bar{border:1.5px solid var(--line);background:#fff;border-radius:14px;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;padding:10px 14px;display:flex;box-shadow:0 4px 16px #00000014}.cat-search-form{flex:1;gap:8px;min-width:220px;display:flex}.cat-search-form input{border:1.5px solid var(--line);border-radius:8px;outline:none;flex:1;padding:9px 13px;font-size:13px}.cat-search-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #16a37f1f}.cat-search-form button{background:var(--brand);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:5px;padding:9px 18px;font-size:13px;font-weight:600;display:flex}.cat-search-form button:hover{background:var(--brand-dark)}.cat-filter-bar{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}.cat-filter-label{color:var(--muted);font-size:12px;font-weight:700}.cat-filter-btn{border:1.5px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:20px;padding:5px 14px;font-size:12px;font-weight:600;transition:all .15s}.cat-filter-btn:hover,.cat-filter-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}.cat-subject-card{background:#fff;border-radius:14px;margin-bottom:18px;overflow:hidden;box-shadow:0 4px 16px #00000014}.cat-subject-header{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;display:flex}.cat-subject-header-left{align-items:center;gap:12px;display:flex}.cat-subject-badge{color:var(--brand-dark);background:#e6f7f2;border-radius:20px;align-items:center;gap:6px;padding:6px 14px;font-size:13px;font-weight:700;display:inline-flex}.cat-progress-pct{color:var(--brand);font-size:20px;font-weight:800;line-height:1}.cat-progress-counts{color:var(--muted);font-size:12px}.cat-subject-header-right{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.cat-action-btn{cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:5px;padding:7px 14px;font-size:12px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.cat-btn-notes{color:#78350f;background:#fef3c7;border:1px solid #fde68a}.cat-btn-notes:hover{background:#fde68a}.cat-btn-reset{color:#ef4444;background:#fef2f2;border:1.5px solid #fecaca}.cat-btn-reset:hover{background:#fee2e2}.cat-progress-bar-wrap{padding:0 20px 12px}.cat-progress-track{background:#eef1f6;border-radius:6px;height:6px;overflow:hidden}.cat-progress-fill{border-radius:6px;height:100%;transition:width .5s}.cat-fill-danger{background:#ef4444}.cat-fill-warning{background:#f59e0b}.cat-fill-success{background:var(--brand)}.cat-topic-list{padding:0 20px 8px}.cat-topic-row{border-bottom:1px solid #f1f5f9;justify-content:space-between;align-items:center;gap:10px;padding:11px 10px;transition:all .15s;display:flex}.cat-topic-row:last-child{border-bottom:none}.cat-topic-row:hover{background:#fafcfa;border-radius:8px}.cat-topic-main{flex:1;min-width:0}.cat-topic-link{color:var(--ink);align-items:center;gap:7px;min-width:0;font-size:14px;font-weight:600;text-decoration:none;display:flex}.cat-topic-link span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.cat-topic-link:hover{color:var(--brand)}.cat-topic-row-locked .cat-topic-link:hover{color:#b91c1c}.cat-topic-tags{flex-wrap:wrap;align-items:center;gap:4px;margin-top:4px;display:flex}.cat-topic-actions{flex-shrink:0;align-items:center;gap:7px;display:flex}.cat-badge{border-radius:10px;align-items:center;gap:3px;padding:2px 8px;font-size:10px;font-weight:700;display:inline-flex}.cat-badge-free{color:#15803d;background:#dcfce7;border:1px solid #bbf7d0}.cat-badge-lock{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca}.cat-diff-easy{color:#15803d;background:#dcfce7;border:1px solid #bbf7d0}.cat-diff-medium{color:#a16207;background:#fef9c3;border:1px solid #fde68a}.cat-diff-hard{color:#b91c1c;background:#fee2e2;border:1px solid #fecaca}.cat-badge-done{color:#5b21b6;background:#f5f3ff;border:1px solid #ddd6fe;border-radius:12px;align-items:center;gap:4px;padding:3px 9px;font-size:11px;font-weight:700;display:inline-flex}.cat-tag{color:#5b21b6;background:#f5f3ff;border:1px solid #ddd6fe;border-radius:10px;padding:2px 7px;font-size:10px;font-weight:600;text-decoration:none}.cat-tag:hover{background:#ede9fe}.cat-view-count{color:var(--muted);align-items:center;gap:3px;font-size:11px;font-weight:500;display:inline-flex}.cat-icon-btn{cursor:pointer;border:none;border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;font-size:13px;text-decoration:none;transition:all .15s;display:inline-flex}.cat-icon-view{color:#2563eb;background:#eff6ff}.cat-icon-view:hover{background:#dbeafe}.cat-icon-check{color:var(--brand);background:#e6f7f2}.cat-icon-check:hover{background:var(--brand);color:#fff}.cat-icon-bookmark{color:#c2410c;background:#fff7ed}.cat-icon-bookmark:hover,.cat-icon-bookmark[aria-pressed=true]{color:#c2410c;background:#fed7aa}.cat-icon-lock{color:#b91c1c;background:#fef2f2}.cat-icon-btn:disabled{opacity:.5;cursor:wait}.cat-icon-video-idle{color:#6d28d9;background:#f5f3ff}.cat-icon-video-idle:hover{background:#ede9fe}.cat-icon-video-working{color:#6d28d9;background:#f5f3ff}.cat-icon-video-error{color:#b91c1c;background:#fef2f2}.cat-icon-video-error:hover{background:#fee2e2}.cat-icon-video-done{color:#15803d;background:#e6f7f2}.cat-icon-video-done:hover{background:#d1fae5}.cat-icon-spin{animation:.9s linear infinite cat-spin}@keyframes cat-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.cat-empty-subject{text-align:center;padding:32px 20px}.cat-empty-subject p{color:var(--muted);font-size:13px}.sub-list{flex-direction:column;gap:10px;display:flex}.sub-row{border-left:4px solid var(--brand);background:#fff;border-radius:14px;justify-content:space-between;align-items:center;gap:14px;padding:18px 20px;transition:all .18s;display:flex;box-shadow:0 4px 16px #00000014}.sub-row:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a}.sub-row-info{min-width:0}.sub-name{color:var(--ink);font-size:16px;font-weight:700}.sub-desc{color:var(--muted);margin-top:4px;font-size:13px}.sub-badge{color:var(--brand-dark);background:#e6f7f2;border-radius:12px;align-items:center;gap:5px;margin-top:6px;padding:3px 10px;font-size:11px;font-weight:700;display:inline-flex}.sub-row-actions{flex-shrink:0;gap:8px;display:flex}.sub-btn-view{background:var(--brand);color:#fff;white-space:nowrap;border-radius:8px;align-items:center;gap:5px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.sub-btn-view:hover{background:var(--brand-dark)}@media (width<=650px){.sub-row{flex-direction:column;align-items:flex-start}.sub-row-actions{width:100%}.sub-btn-view{flex:1;justify-content:center}.cat-search-stats-bar{flex-direction:column;align-items:stretch}}.dark .cat-search-stats-bar,.dark .cat-subject-card,.dark .sub-row{background:#1f2937;border-color:#374151}.dark .cat-search-form input,.dark .cat-filter-btn{color:#e5e7eb;background:#111827;border-color:#374151}.dark .cat-filter-btn:hover,.dark .cat-filter-btn.active{background:var(--brand);color:#fff}.dark .cat-subject-header{border-color:#374151}.dark .cat-topic-row{border-color:#263243}.dark .cat-topic-row:hover{background:#111827}.dark .cat-topic-link{color:#e5e7eb}.dark .cat-progress-track{background:#374151}.dark .cat-empty-subject p{color:#9ca3af}.dark .sub-name{color:#f3f4f6}.att-panel{background:#fffdf5;border:1.5px solid #eadba3;border-radius:16px;margin-top:24px;padding:22px 24px}.att-panel h3{text-transform:uppercase;letter-spacing:.5px;color:#92400e;align-items:center;gap:8px;margin-bottom:14px;font-size:14px;font-weight:800;display:flex}.att-panel+.att-panel{margin-top:16px}.att-editor textarea{border:1.5px solid var(--line);resize:vertical;border-radius:10px;width:100%;min-height:260px;padding:12px 14px;font-family:JetBrains Mono,monospace;font-size:13px;line-height:1.6}.att-actions{align-items:center;gap:10px;margin-top:12px;display:flex}.att-msg{margin-top:10px;font-size:13px}.att-msg.success{color:#15803d}.att-msg.error{color:#b91c1c}.att-video-hint{color:#78716c;margin:0 0 14px;font-size:13px;line-height:1.5}.dark .att-panel{background:#241d08;border-color:#4a3f10}.dark .att-panel h3{color:#fbbf24}.dark .att-editor textarea{color:#e5e7eb;background:#111827;border-color:#374151}.dark .att-video-hint{color:#a8a29e}.drw-fab{z-index:70;color:#fff;cursor:pointer;background:linear-gradient(135deg,#0f766e,#16a37f 60%,#2dd4bf);border:none;border-radius:30px;align-items:center;gap:8px;padding:12px 18px;font-size:13.5px;font-weight:700;transition:transform .15s,box-shadow .15s;display:inline-flex;position:fixed;bottom:24px;right:24px;box-shadow:0 8px 24px #0f766e59}.drw-fab:hover{transform:translateY(-2px);box-shadow:0 10px 28px #0f766e6b}.drw-fab i{font-size:16px}@media (width<=600px){.drw-fab span{display:none}.drw-fab{padding:12px 14px}}.drw-panel{z-index:71;border:1px solid var(--line);background:#fff;border-radius:16px;flex-direction:column;width:380px;max-width:calc(100vw - 32px);height:520px;max-height:calc(100vh - 140px);animation:.15s ease-out drw-rise;display:flex;position:fixed;bottom:92px;right:24px;overflow:hidden;box-shadow:0 18px 48px #00000038}@keyframes drw-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.drw-header{background:linear-gradient(135deg,#0f766e,#16a37f 60%,#2dd4bf);flex-shrink:0;justify-content:space-between;align-items:flex-start;padding:14px 16px;display:flex}.drw-title{color:#fff;align-items:center;gap:8px;font-size:14px;font-weight:700;display:flex}.drw-sub{color:#ffffffc7;margin-top:3px;font-size:11px}.drw-close{color:#fff;cursor:pointer;background:#ffffff2e;border:none;border-radius:6px;padding:4px 8px;font-size:13px;transition:background .15s}.drw-close:hover{background:#ffffff4d}.drw-messages{flex-direction:column;flex:1;gap:12px;padding:14px 14px 6px;display:flex;overflow-y:auto}.drw-empty{text-align:center;color:var(--muted);padding:24px 12px;font-size:13px;line-height:1.6}.drw-empty-icon{margin-bottom:8px;font-size:30px}.drw-empty-hint{margin-top:8px;font-size:11.5px}.drw-msg{max-width:92%}.drw-msg.user{align-self:flex-end}.drw-msg.user .drw-msg-content{color:#fff;background:#16a37f;border-radius:13px 13px 4px;padding:9px 13px;font-size:13px;line-height:1.5}.drw-msg.ai{align-self:flex-start;width:100%}.drw-msg.ai .drw-msg-content{border:1px solid var(--line);color:var(--ink);background:#f8fafc;border-radius:13px 13px 13px 4px;padding:10px 13px;font-size:13px;line-height:1.55}.drw-msg.ai .drw-msg-content p:first-child{margin-top:0}.drw-msg.ai .drw-msg-content p:last-child{margin-bottom:0}.drw-msg.ai .drw-msg-content code{color:#047857;background:#ecfdf5;border-radius:4px;padding:1px 5px;font-family:JetBrains Mono,monospace;font-size:.85em}.drw-msg.ai .drw-msg-content pre{color:#e6edf3;background:#0d1117;border-radius:8px;padding:10px 12px;overflow-x:auto}.drw-msg.ai .drw-msg-content pre code{color:inherit;background:0 0;padding:0}.drw-msg-actions{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.drw-msg-actions button{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:8px;align-items:center;gap:5px;padding:4px 9px;font-size:11px;font-weight:600;transition:background .15s,color .15s;display:inline-flex}.drw-msg-actions button:hover:not(:disabled){color:#047857;background:#ecfdf5;border-color:#99f6e4}.drw-msg-actions button:disabled{opacity:.6;cursor:default}.drw-msg.typing .drw-msg-content{display:none}.drw-msg.typing{border:1px solid var(--line);background:#f8fafc;border-radius:13px 13px 13px 4px;align-self:flex-start;gap:4px;padding:11px 14px;display:inline-flex}.drw-msg.typing span{background:#94a3b8;border-radius:50%;width:6px;height:6px;animation:1.2s infinite drw-blink}.drw-msg.typing span:nth-child(2){animation-delay:.2s}.drw-msg.typing span:nth-child(3){animation-delay:.4s}@keyframes drw-blink{0%,80%,to{opacity:.25}40%{opacity:1}}.drw-error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;margin:0 14px 8px;padding:8px 12px;font-size:12.5px}.drw-input-row{border-top:1.5px solid var(--line);flex-shrink:0;gap:8px;padding:10px 12px;display:flex}.drw-input-row textarea{resize:none;border:1.5px solid var(--line);font:inherit;max-height:90px;color:var(--ink);border-radius:10px;flex:1;padding:8px 11px;font-size:13px;line-height:1.4}.drw-input-row textarea:focus{border-color:#16a37f;outline:none}.drw-input-row button{color:#fff;cursor:pointer;background:#16a37f;border:none;border-radius:10px;flex-shrink:0;align-self:flex-end;width:38px;height:38px;transition:background .15s}.drw-input-row button:hover:not(:disabled){background:#0f766e}.drw-input-row button:disabled{opacity:.5;cursor:not-allowed}.dark .drw-panel{background:#1f2937;border-color:#374151}.dark .drw-msg.ai .drw-msg-content,.dark .drw-msg.typing{color:#e5e7eb;background:#111827;border-color:#374151}.dark .drw-msg-actions button{color:#9ca3af;background:#111827;border-color:#374151}.dark .drw-input-row{border-color:#374151}.dark .drw-input-row textarea{color:#e5e7eb;background:#111827;border-color:#374151}.snp-group{z-index:60;gap:6px;animation:.12s ease-out snp-pop;display:flex;position:fixed}.snp-btn{color:#fff;white-space:nowrap;cursor:pointer;background:#1e2330;border:none;border-radius:20px;align-items:center;gap:6px;padding:7px 14px;font-size:12.5px;font-weight:700;display:inline-flex;box-shadow:0 6px 18px #00000040}.snp-btn:hover{background:var(--brand-dark,#243fa6)}.snp-btn i{font-size:13px}.snp-btn-ai{background:#0f766e}.snp-btn-ai:hover{background:#0d5f58}@keyframes snp-pop{0%{opacity:0;transform:translateY(3px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.snp-toast{z-index:60;color:#fff;background:#166534;border-radius:20px;padding:9px 18px;font-size:13px;font-weight:600;position:fixed;bottom:28px;left:50%;transform:translate(-50%);box-shadow:0 6px 18px #0003}.qe-root .ql-toolbar.ql-snow{border:none;border-bottom:1px solid var(--line);background:#fafafa;border-radius:10px 10px 0 0;padding:8px 6px}.qe-root .ql-toolbar.ql-snow .ql-formats{white-space:nowrap;margin:2px 8px 2px 0}.qe-root .ql-toolbar.ql-snow button{width:26px;height:26px;padding:3px}.qe-root .ql-toolbar.ql-snow button svg{width:16px;height:16px}.qe-root .ql-container.ql-snow{border:1px solid var(--line);border-top:none;border-radius:0 0 10px 10px;font-family:inherit;font-size:13.5px}.qe-root .ql-editor{min-height:110px;padding:12px 14px;line-height:1.55}.qe-root .ql-editor.ql-blank:before{color:var(--muted);font-style:normal}.qe-root .ql-editor blockquote{border-left:3px solid var(--brand);color:#166534;background:#f0fdf4;border-radius:0 6px 6px 0;margin:8px 0;padding:6px 12px}.dark .qe-root .ql-toolbar.ql-snow{background:#111827;border-color:#374151}.dark .qe-root .ql-container.ql-snow{color:#e5e7eb;background:#1f2937;border-color:#374151}.dark .qe-root .ql-editor.ql-blank:before{color:#9ca3af}.dark .qe-root .ql-toolbar.ql-snow .ql-stroke{stroke:#9ca3af}.dark .qe-root .ql-toolbar.ql-snow .ql-fill{fill:#9ca3af}.dark .qe-root .ql-toolbar.ql-snow .ql-picker{color:#9ca3af}.dark .qe-root .ql-toolbar.ql-snow button:hover .ql-stroke,.dark .qe-root .ql-toolbar.ql-snow button.ql-active .ql-stroke{stroke:#34d399}.dark .qe-root .ql-toolbar.ql-snow button:hover .ql-fill,.dark .qe-root .ql-toolbar.ql-snow button.ql-active .ql-fill{fill:#34d399}.dark .qe-root .ql-editor blockquote{color:#6ee7b7;background:#0e2f26}.tvp{border:1px solid var(--line);background:#fff;border-radius:14px;margin-top:16px;padding:18px;box-shadow:0 3px 14px #0f172a09}.tvp-header{justify-content:space-between;align-items:center;gap:10px;display:flex}.tvp-header span{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);align-items:center;gap:8px;font-size:13px;display:flex}.tvp-add-btn{border:1px solid var(--line);color:var(--ink,#0f172a);cursor:pointer;background:#f8fafc;border-radius:8px;align-items:center;gap:6px;padding:5px 10px;font-size:13px;transition:background .15s,border-color .15s;display:flex}.tvp-add-btn:hover{border-color:var(--brand);background:#f1f5f9}.tvp-form-wrap{margin-top:14px}.tvp-mode-tabs{border-bottom:1px solid var(--line);gap:6px;margin-bottom:12px;display:flex}.tvp-mode-tab{color:var(--muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;align-items:center;gap:6px;margin-bottom:-1px;padding:7px 4px 10px;font-size:13px;display:flex}.tvp-mode-tab.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}.tvp-recorder{flex-direction:column;gap:10px;margin-bottom:14px;display:flex}.tvp-recorder-kind{gap:16px;font-size:13px;display:flex}.tvp-recorder-kind label{cursor:pointer;align-items:center;gap:6px;display:flex}.tvp-record-canvas{object-fit:contain;background:#0f172a;border-radius:10px;width:100%;max-height:220px}.tvp-record-hint{color:var(--muted);margin:0;font-size:12px}.tvp-record-audio-indicator{color:#dc2626;background:#fef2f2;border-radius:10px;align-items:center;gap:8px;padding:14px;font-size:13px;font-weight:600;display:flex}.tvp-record-audio-indicator i{animation:1.4s ease-in-out infinite tvp-pulse}@keyframes tvp-pulse{0%,to{opacity:1}50%{opacity:.4}}.tvp-record-controls{align-items:center;gap:12px;display:flex}.tvp-record-timer{font-variant-numeric:tabular-nums;color:#dc2626;align-items:center;gap:6px;font-size:13px;font-weight:600;display:flex}.tvp-record-timer .bi-record-circle-fill{animation:1.4s ease-in-out infinite tvp-pulse}.tvp-record-preview{flex-direction:column;gap:8px;display:flex}.tvp-record-preview audio{width:100%}.tvp-use-recording-btn{border:1px dashed var(--brand);color:var(--brand);cursor:pointer;background:#f4fbf8;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:8px 10px;font-size:13px;display:flex}.tvp-player-audio{width:100%}.tvp-form{flex-direction:column;gap:8px;margin-top:14px;display:flex}.tvp-form input,.tvp-form select,.tvp-form textarea{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;padding:8px 10px;font-family:inherit;font-size:13px}.tvp-form textarea{resize:vertical}.tvp-file-picker{border:1.5px dashed var(--line);cursor:pointer;color:var(--muted);border-radius:10px;align-items:center;gap:8px;padding:12px;font-size:13px;transition:border-color .15s,background .15s;display:flex;position:relative}.tvp-file-picker:hover{border-color:var(--brand);background:#f4fbf8}.tvp-file-picker input{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.tvp-empty{color:var(--muted);margin:12px 0 0;font-size:13px}.tvp-list{flex-direction:column;gap:14px;margin:14px 0 0;padding:0;list-style:none;display:flex}.tvp-item{border-top:1px solid var(--line);padding-top:14px}.tvp-item:first-child{border-top:none;padding-top:0}.tvp-player{background:#0f172a;border-radius:10px;width:100%;max-height:220px;display:block}.tvp-item-meta{justify-content:space-between;align-items:flex-start;gap:10px;margin-top:8px;display:flex}.tvp-item-title{font-size:13px;font-weight:600;display:block}.tvp-item-category{color:var(--muted);margin-top:2px;font-size:12px;display:block}.tvp-item-desc{color:var(--muted);margin:6px 0 0;font-size:12.5px;line-height:1.4}.tvp-remove-btn{border:1px solid var(--line);color:#dc2626;cursor:pointer;background:#fff;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;transition:background .15s,border-color .15s;display:flex}.tvp-remove-btn:hover{background:#fef2f2;border-color:#fecaca}.tvp-remove-btn:disabled{opacity:.5;cursor:not-allowed}.dark .tvp,.dark .tvp-add-btn,.dark .tvp-form input,.dark .tvp-form select,.dark .tvp-form textarea,.dark .tvp-remove-btn{color:#e5e7eb;background:#1f2937;border-color:#374151}.dark .tvp-file-picker{border-color:#374151}.dark .tvp-file-picker:hover{background:#111827}.dark .tvp-item,.dark .tvp-mode-tabs{border-color:#374151}.dark .tvp-use-recording-btn{background:#111827}.td-action-row{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}.td-btn-action{border:1.5px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:8px;align-items:center;gap:6px;padding:7px 15px;font-size:13px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.td-btn-action:hover{background:var(--bg,#f4f6f9)}.td-btn-bookmark{color:#c2410c;background:#fff7ed;border-color:#fed7aa}.td-btn-bookmark[aria-pressed=true]{background:#fed7aa}.td-btn-bookmark:disabled{opacity:.6;cursor:wait}.td-layout{grid-template-columns:1fr 340px;align-items:start;gap:22px;display:grid}@media (width<=960px){.td-layout{grid-template-columns:1fr}.td-notes-panel{position:static}}.td-content-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 16px #00000014}.td-content-header{background:linear-gradient(135deg,#0b3d30,#16a37f 55%,#22c55e);padding:20px 28px 18px}.td-meta-row{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;display:flex}.td-subject-chip{color:#d1fae5;letter-spacing:.6px;text-transform:uppercase;background:#ffffff2e;border-radius:20px;padding:4px 12px;font-size:11px;font-weight:700}.td-tag-chip{color:#a7f3d0;background:#ffffff1f;border:1px solid #ffffff38;border-radius:20px;padding:3px 10px;font-size:11px;font-weight:600;text-decoration:none}.td-diff-chip{border-radius:12px;padding:3px 10px;font-size:11px;font-weight:700}.td-diff-chip.easy{color:#15803d;background:#dcfce7;border:1px solid #bbf7d0}.td-diff-chip.medium{color:#a16207;background:#fef9c3;border:1px solid #fde68a}.td-diff-chip.hard{color:#b91c1c;background:#fee2e2;border:1px solid #fecaca}.td-title-row{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px;display:flex}.td-title-row h1{color:#fff;letter-spacing:-.3px;margin:0;font-size:clamp(19px,2.2vw,28px);font-weight:800;line-height:1.25}.td-access-badge{border-radius:20px;align-items:center;gap:4px;padding:4px 12px;font-size:12px;font-weight:700;display:inline-flex}.td-access-badge.free{color:#15803d;background:#dcfce7;border:1.5px solid #86efac}.td-access-badge.premium{color:#92400e;background:#fef9c3;border:1.5px solid #fde68a}.td-stats-bar{flex-wrap:wrap;gap:10px;display:flex}.td-stat-item{background:#fef08a;border:1px solid #eab308;border-radius:8px;align-items:center;gap:7px;padding:6px 12px;display:flex;box-shadow:1px 2px #a1820933}.td-stat-icon{color:#b45309;font-size:13px}.td-stat-label{text-transform:uppercase;letter-spacing:.6px;color:#92400e;font-size:9.5px;font-weight:700}.td-stat-value,.td-stat-date{color:#78350f;font-size:13px;font-weight:700}.td-guest-nudge{color:#d1fae5;background:#ffffff2e;border-radius:20px;align-items:center;gap:7px;margin-top:6px;padding:6px 14px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.td-content-body{padding:32px 36px 36px}@media (width<=600px){.td-content-body{padding:20px}.td-content-header{padding:20px 18px 18px}}.td-md{color:#374151;max-width:780px;font-size:14.5px;line-height:1.6}.td-md h1{color:var(--ink);border-bottom:3px solid var(--brand);margin:24px 0 10px;padding-bottom:6px;font-size:1.55em;font-weight:800}.td-md h1:first-child{margin-top:0}.td-md h2{color:var(--ink);border-bottom:1.5px solid #d1fae5;margin:20px 0 8px;padding-bottom:5px;font-size:1.2em;font-weight:700}.td-md h3{color:var(--brand-dark);margin:14px 0 4px;font-size:1.02em;font-weight:700}.td-md p{margin-bottom:8px}.td-md ul,.td-md ol{margin-bottom:8px;padding-left:20px}.td-md li{margin-bottom:3px}.td-md code{color:#7c3aed;background:#f3f0ff;border-radius:5px;padding:2px 7px;font-family:JetBrains Mono,monospace;font-size:.83em;font-weight:500}.td-md pre{background:#0d1117;border:1px solid #21262d;border-radius:10px;margin:10px 0 16px;padding:14px 18px;overflow-x:auto}.td-md pre code{color:#e6edf3;background:0 0;padding:0;font-family:JetBrains Mono,monospace;font-size:13.5px;line-height:1.65}.td-md .mermaid{border:1.5px solid var(--line);text-align:center;background:#fff;border-radius:14px;margin:20px 0;padding:24px 16px;overflow-x:auto}.td-md .mermaid svg{max-width:100%;height:auto}.td-md .mermaid-loading{text-align:center;color:var(--muted);padding:20px;font-size:13px}.td-md table{border-collapse:collapse;width:100%;box-shadow:0 0 0 1px var(--line);border-radius:10px;margin:12px 0 18px;font-size:13.5px;overflow:hidden}.td-md table th{background:var(--brand);color:#fff;text-align:left;text-transform:uppercase;padding:8px 14px;font-size:11.5px;font-weight:700}.td-md table td{vertical-align:top;border-bottom:1px solid #eef2ee;padding:7px 14px}.td-md table tr:nth-child(2n) td{background:#f8f7ff}.td-md blockquote{border-left:4px solid var(--brand);color:#166534;background:#f0fdf4;border-radius:0 10px 10px 0;margin:6px 0;padding:8px 12px}.td-md strong{color:var(--ink);font-weight:700}.td-snippet-section{border-top:1.5px solid var(--line);margin-top:36px;padding-top:28px}.td-snippet-title{color:var(--ink);align-items:center;gap:8px;margin-bottom:14px;font-size:15px;font-weight:700;display:flex}.td-tldr-box{background:#f8fafc;border:1.5px solid #e2e8f0;border-radius:14px;margin-bottom:24px;padding:24px 28px}.td-tldr-chip{color:#fff;letter-spacing:.5px;background:#185fa5;border-radius:20px;padding:3px 10px;font-size:10px;font-weight:800}.td-tldr-box p{color:#1e293b;margin:14px 0 0;font-size:15px;line-height:1.7}.td-paywall-box{border:1.5px solid var(--line);text-align:center;background:#fff;border-radius:20px;padding:28px;box-shadow:0 12px 48px #0000001a}.td-paywall-chip{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca;border-radius:20px;align-items:center;gap:6px;margin-bottom:10px;padding:4px 12px;font-size:11px;font-weight:700;display:inline-flex}.td-paywall-box h3{color:#1e293b;margin:0 0 4px;font-size:18px;font-weight:800}.td-paywall-box p:not(.td-paywall-hint){color:#64748b;margin:0 0 18px;font-size:13px}.td-paywall-cta{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.td-paywall-hint{color:var(--muted);margin-top:12px;font-size:13px}.td-paywall-hint a{color:var(--brand);font-weight:600}.td-complete-banner{background:linear-gradient(135deg,#f0fdf4,#dcfce7);border:2px solid #bbf7d0;border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:32px;padding:20px 24px;display:flex}.td-complete-text{color:#166534;font-size:15px;font-weight:600}.td-complete-text small{color:#4ade80;margin-top:2px;font-size:12px;font-weight:400;display:block}.td-btn-mark-complete{color:#fff;cursor:pointer;white-space:nowrap;background:#16a34a;border:none;border-radius:24px;align-items:center;gap:8px;padding:10px 22px;font-size:14px;font-weight:700;transition:all .2s;display:inline-flex}.td-btn-mark-complete:hover{background:#15803d}.td-btn-mark-complete.locked{opacity:.65;cursor:not-allowed}.td-difficulty-row{flex-wrap:wrap;gap:10px;display:flex}.td-btn-difficulty{cursor:pointer;border:2px solid;border-radius:24px;align-items:center;gap:6px;padding:10px 20px;font-size:14px;font-weight:700;transition:all .15s;display:inline-flex}.td-btn-difficulty.easy{color:#166534;background:#dcfce7;border-color:#86efac}.td-btn-difficulty.easy:hover{color:#fff;background:#16a34a}.td-btn-difficulty.medium{color:#854d0e;background:#fef9c3;border-color:#fde047}.td-btn-difficulty.medium:hover{color:#fff;background:#ca8a04}.td-btn-difficulty.hard{color:#991b1b;background:#fee2e2;border-color:#fca5a5}.td-btn-difficulty.hard:hover{color:#fff;background:#dc2626}.td-btn-difficulty.skip{color:var(--muted);border-color:var(--line);background:0 0;font-weight:500}.td-already-completed{color:#166534;background:#dcfce7;border:1.5px solid #86efac;border-radius:24px;align-items:center;gap:8px;padding:9px 20px;font-size:14px;font-weight:700;display:inline-flex}.td-notes-panel{position:sticky;top:24px}.td-notes-card{background:#fffbeb;border:1.5px solid #fde68a;border-radius:14px;overflow:hidden;box-shadow:0 4px 16px #00000014}.td-notes-header{background:linear-gradient(135deg,#fef9e7,#fef3c7);border-bottom:1.5px solid #fde68a;padding:18px 20px 14px}.td-notes-header-row{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.td-notes-title{color:#78350f;align-items:center;gap:8px;font-size:15px;font-weight:800;display:flex}.td-notes-subtitle{color:#a16207;margin-top:2px;font-size:12px}.td-notes-copy-btn{color:#92400e;cursor:pointer;white-space:nowrap;background:#fff;border:1px solid #fde68a;border-radius:8px;flex-shrink:0;align-items:center;gap:5px;padding:5px 10px;font-size:11.5px;font-weight:700;transition:background .15s;display:inline-flex}.td-notes-copy-btn:hover{background:#fef3c7}.td-notes-card .note-editor{box-shadow:none;border:none;border-radius:0;padding:16px 20px}.td-notes-card .note-editor h2{display:none}.td-notes-locked{text-align:center;padding:28px 20px}.td-notes-locked p{color:#92400e;margin:8px 0 16px;font-size:13px;line-height:1.6}.dark .td-btn-action{color:#e5e7eb;background:#1f2937;border-color:#374151}.dark .td-btn-action:hover{background:#111827}.dark .td-content-card{background:#1f2937}.dark .td-md{color:#d1d5db}.dark .td-md h1,.dark .td-md h2,.dark .td-md h3,.dark .td-md strong{color:#f3f4f6}.dark .td-md h2{border-bottom-color:#374151}.dark .td-md code{color:#c4b5fd;background:#2a2140}.dark .td-md .mermaid{background:#111827;border-color:#374151}.dark .td-md table{box-shadow:0 0 0 1px #374151}.dark .td-md table td{border-bottom-color:#263243}.dark .td-md table tr:nth-child(2n) td{background:#111827}.dark .td-md blockquote{color:#6ee7b7;background:#0e2f26}.dark .td-snippet-section{border-color:#374151}.dark .td-snippet-title{color:#f3f4f6}.dark .td-tldr-box{background:#111827;border-color:#374151}.dark .td-tldr-box p{color:#d1d5db}.dark .td-paywall-box{background:#1f2937;border-color:#374151}.dark .td-paywall-box h3{color:#f3f4f6}.dark .td-paywall-box p:not(.td-paywall-hint){color:#9ca3af}.dark .td-notes-card{background:#241d08;border-color:#4a3f10}.dark .td-notes-header{background:linear-gradient(135deg,#2a2410,#241f0a);border-color:#4a3f10}.dark .td-notes-title{color:#fbbf24}.dark .td-notes-subtitle{color:#d4a72c}.dark .td-notes-copy-btn{color:#fbbf24;background:#1f2937;border-color:#4a3f10}.dark .td-notes-copy-btn:hover{background:#2a2410}.dark .td-notes-card .note-editor{background:#241d08}.dark .td-notes-locked p{color:#d4a72c}.dark .td-btn-difficulty.skip{color:#9ca3af;border-color:#374151}.sr-page{max-width:860px;margin:0 auto}.sr-search-box{background:#fff;border-radius:14px;margin-bottom:24px;padding:20px 22px;box-shadow:0 4px 16px #00000014}.sr-search-box form{gap:10px;display:flex}.sr-search-box input{border:1.5px solid var(--line);border-radius:8px;outline:none;flex:1;padding:11px 14px;font-size:14px}.sr-search-box input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #16a37f1f}.sr-search-box button{background:var(--brand);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:6px;padding:11px 20px;font-size:14px;font-weight:600;display:flex}.sr-search-box button:hover{background:var(--brand-dark)}.sr-header{margin-bottom:22px}.sr-title{align-items:center;gap:8px;font-size:22px;font-weight:800;display:flex}.sr-title i{color:var(--brand)}.sr-meta{color:var(--muted);margin-top:6px;font-size:14px}.sr-meta strong{color:var(--brand)}.sr-keyword-chip{color:#2563eb;background:#eff6ff;border:1px solid #bfdbfe;border-radius:20px;padding:2px 10px;font-size:13px;font-weight:700;display:inline-block}.sr-card{border-left:4px solid var(--brand);background:#fff;border-radius:14px;margin-bottom:14px;padding:20px 22px;transition:all .18s;overflow:hidden;box-shadow:0 4px 16px #00000014}.sr-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a}.sr-card-meta{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;display:flex}.sr-card-meta-left{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.sr-subject-badge{color:var(--brand-dark);letter-spacing:.5px;text-transform:uppercase;background:#e6f7f2;border-radius:20px;align-items:center;gap:5px;padding:4px 12px;font-size:11px;font-weight:700;display:inline-flex}.sr-views-badge{color:#2563eb;background:#eff6ff;border:1px solid #bfdbfe;border-radius:20px;align-items:center;gap:4px;padding:3px 10px;font-size:11px;font-weight:600;display:inline-flex}.sr-card-title{margin-bottom:10px;font-size:18px;font-weight:700;line-height:1.3}.sr-card-preview{color:var(--muted);margin-bottom:14px;font-size:13px;line-height:1.7}.sr-tags{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.sr-tag{color:#5b21b6;background:#f5f3ff;border:1px solid #ddd6fe;border-radius:12px;padding:3px 9px;font-size:11px;font-weight:600;text-decoration:none;display:inline-block}.sr-tag:hover{background:#ede9fe}.sr-card-footer{justify-content:flex-end;display:flex}.sr-btn-view{background:var(--brand);color:#fff;border-radius:8px;align-items:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.sr-btn-view:hover{background:var(--brand-dark)}.sr-back-row{text-align:center;margin-top:28px}@media (width<=640px){.sr-search-box form{flex-direction:column}.sr-card-meta{flex-direction:column;align-items:flex-start}}.dark .sr-search-box,.dark .sr-card{background:#1f2937}.dark .sr-search-box input{color:#e5e7eb;background:#111827;border-color:#374151}.dark .sr-card-title{color:#f3f4f6}.nv-page{max-width:780px;margin:0 auto}.nv-breadcrumb{color:var(--muted);flex-wrap:wrap;align-items:center;gap:5px;margin-bottom:12px;font-size:12px;display:flex}.nv-breadcrumb a{color:var(--brand);text-decoration:none}.nv-breadcrumb a:hover{text-decoration:underline}.nv-subject-chip{color:var(--brand-dark);text-transform:uppercase;letter-spacing:.6px;background:#e6f7f2;border-radius:20px;align-items:center;gap:5px;margin-bottom:12px;padding:3px 12px;font-size:11px;font-weight:700;display:inline-flex}.nv-title{letter-spacing:-.4px;margin:0 0 12px;font-size:clamp(22px,4vw,30px);font-weight:800;line-height:1.25}.nv-meta{border-bottom:1.5px solid var(--line);flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:28px;padding-bottom:22px;display:flex}.nv-meta-item{color:var(--muted);align-items:center;gap:4px;font-size:12px;display:flex}.nv-card{border:1px solid var(--line);border-top:3px solid var(--brand);background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 40px #0000001a}.nv-card-hdr{border-bottom:1px solid var(--line);background:var(--bg);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:16px 28px;display:flex}.nv-card-lbl{text-transform:uppercase;letter-spacing:.5px;color:var(--brand);align-items:center;gap:5px;margin-bottom:4px;font-size:11px;font-weight:700;display:flex}.nv-card-title{font-size:17px;font-weight:800;line-height:1.2}.nv-card-tags{color:var(--muted);text-align:right;max-width:280px;font-size:11px;line-height:1.5}.nv-card-ts{color:var(--muted);white-space:nowrap;align-items:center;gap:4px;font-size:11px;display:flex}.nv-content{word-break:break-word;white-space:pre-wrap;padding:32px 40px 48px;font-family:Lora,Georgia,serif;font-size:17px;line-height:1.9}.nv-content h1{border-bottom:2px solid var(--brand);margin:28px 0 10px;padding-bottom:7px;font-family:Inter,sans-serif;font-size:1.45em;font-weight:800}.nv-content h2{margin:22px 0 9px;font-family:Inter,sans-serif;font-size:1.2em;font-weight:700}.nv-content h3{color:var(--brand-dark);margin:18px 0 7px;font-family:Inter,sans-serif;font-size:1.05em;font-weight:700}.nv-content p{white-space:pre-wrap;margin-bottom:1em}.nv-content ul,.nv-content ol{margin:.5em 0 1em 1.5em}.nv-content a{color:var(--brand)}.nv-content blockquote{border-left:4px solid var(--brand);color:var(--brand-dark);background:#e6f7f2;border-radius:0 8px 8px 0;margin:16px 0;padding:12px 18px;font-style:italic}.nv-content code{color:#be185d;background:#f1f5f9;border-radius:4px;padding:2px 6px;font-family:JetBrains Mono,monospace;font-size:.87em}.nv-content pre{color:#e2e8f0;background:#1e293b;border-radius:10px;margin:16px 0;padding:18px 22px;font-family:JetBrains Mono,monospace;font-size:.84em;line-height:1.6;overflow-x:auto}.nv-content pre code{color:inherit;background:0 0;padding:0}.nv-content img{border-radius:8px;max-width:100%;margin:12px 0}.nv-card-footer{border-top:1px solid var(--line);background:var(--bg);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:14px 28px;display:flex}.nv-footer-meta{color:var(--muted);align-items:center;gap:16px;font-size:12px;display:flex}.nv-footer-meta i{color:var(--brand)}.nv-footer-edit{background:var(--brand);color:#fff;border-radius:8px;align-items:center;gap:6px;padding:7px 16px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.nv-footer-edit:hover{background:var(--brand-dark)}.nv-bottom-nav{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:28px;padding-top:20px;display:flex}.nv-bnav{border:1.5px solid var(--line);color:var(--muted);background:#fff;border-radius:9px;align-items:center;gap:6px;padding:9px 18px;font-size:13px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.nv-bnav:hover{border-color:var(--brand);color:var(--brand);background:#e6f7f2}@media (width<=640px){.nv-content{padding:20px 18px 32px}}.dark .nv-card{background:#1f2937;border-color:#374151}.dark .nv-card-hdr,.dark .nv-card-footer,.dark .nv-meta,.dark .nv-bottom-nav{border-color:#374151}.dark .nv-content blockquote{color:#6ee7b7;background:#0e2f26}.dark .nv-content code{color:#f472b6;background:#2a2140}.dark .nv-bnav{color:#9ca3af;background:#111827;border-color:#374151}.dark .nv-bnav:hover{background:#0e2f26}.fc-page{max-width:780px;margin:0 auto}.fc-header{text-align:center;margin-bottom:32px}.fc-header-back{color:var(--muted);border:1.5px solid var(--line);background:#fff;border-radius:10px;align-items:center;gap:6px;margin-bottom:20px;padding:7px 14px;font-size:13px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.fc-header-back:hover{color:var(--brand);border-color:var(--brand);background:#e6f7f2}.fc-subject{text-transform:uppercase;letter-spacing:.7px;color:var(--brand);margin-bottom:6px;font-size:11px;font-weight:700}.fc-topic-title{margin-bottom:8px;font-size:clamp(18px,3vw,26px);font-weight:800}.fc-counter{color:var(--muted);font-size:13px;font-weight:600}.fc-progress-wrap{background:var(--line);border-radius:5px;height:5px;margin-bottom:28px;overflow:hidden}.fc-progress-fill{background:linear-gradient(90deg, var(--brand), #34d399);border-radius:5px;height:100%;transition:width .4s}.fc-empty{text-align:center;background:#fff;border-radius:18px;padding:56px 24px;box-shadow:0 4px 20px #0000001a}.fc-empty-icon{opacity:.25;margin-bottom:14px;font-size:48px}.fc-empty-title{margin-bottom:8px;font-size:18px;font-weight:700}.fc-empty-desc{color:var(--muted);font-size:14px}.fc-scene{perspective:1200px;width:100%;margin-bottom:28px}.fc-card-wrap{width:100%;min-height:340px;transform-style:preserve-3d;cursor:pointer;transition:transform .55s cubic-bezier(.4,0,.2,1);position:relative}.fc-card-wrap.flipped{transform:rotateY(180deg)}.fc-face{backface-visibility:hidden;border-radius:18px;flex-direction:column;padding:36px 32px;display:flex;position:absolute;inset:0;box-shadow:0 4px 20px #0000001a}.fc-front{background:#fff;border:2px solid #e6f7f2}.fc-back{border:2px solid var(--brand);background:linear-gradient(135deg,#f0fdf4,#e6f7f2);transform:rotateY(180deg)}.fc-level{text-transform:uppercase;letter-spacing:.8px;border-radius:12px;align-self:flex-start;margin-bottom:16px;padding:3px 10px;font-size:10px;font-weight:800;display:inline-block}.fc-level.basic{color:#15803d;background:#dcfce7;border:1px solid #bbf7d0}.fc-level.intermediate{color:#a16207;background:#fef9c3;border:1px solid #fde68a}.fc-level.advanced{color:#b91c1c;background:#fee2e2;border:1px solid #fecaca}.fc-level.general{color:var(--brand-dark);background:#e6f7f2;border:1px solid #a7f3d0}.fc-face-label{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);align-items:center;gap:6px;margin-bottom:14px;font-size:11px;font-weight:700;display:flex}.fc-face-label i{color:var(--brand);font-size:13px}.fc-question{flex:1;align-items:center;font-size:clamp(16px,2.5vw,20px);font-weight:700;line-height:1.45;display:flex}.fc-answer{color:#1e3a2f;white-space:pre-wrap;flex:1;font-size:14px;line-height:1.7;overflow-y:auto}.fc-hint{color:var(--muted);text-align:center;border-top:1px solid #0000000f;margin-top:auto;padding-top:14px;font-size:12px}.fc-controls{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;display:flex}.fc-btn{cursor:pointer;border:none;border-radius:10px;align-items:center;gap:7px;padding:11px 22px;font-size:14px;font-weight:700;text-decoration:none;transition:all .15s;display:inline-flex}.fc-btn-prev{color:var(--muted);border:1.5px solid var(--line);background:#fff}.fc-btn-prev:hover:not(:disabled){background:var(--bg);color:var(--ink)}.fc-btn-prev:disabled{opacity:.35;cursor:not-allowed}.fc-btn-flip{background:var(--brand);color:#fff}.fc-btn-flip:hover{background:var(--brand-dark)}.fc-btn-next{color:#fff;background:#1d4ed8}.fc-btn-next:hover:not(:disabled){background:#1e40af}.fc-btn-next:disabled{opacity:.35;cursor:not-allowed}.fc-btn-restart{color:#78350f;background:#fef3c7;border:1.5px solid #fde68a}.fc-btn-restart:hover{background:#fde68a}.fc-dots{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:22px;display:flex}.fc-dot{background:var(--line);cursor:pointer;border:none;border-radius:50%;width:8px;height:8px;padding:0;transition:all .2s}.fc-dot.active{background:var(--brand);transform:scale(1.3)}.fc-dot.visited{background:#34d399}.fc-score{text-align:center;background:#fff;border-radius:18px;padding:36px 28px;box-shadow:0 4px 20px #0000001a}.fc-score-icon{margin-bottom:12px;font-size:56px}.fc-score-title{margin-bottom:6px;font-size:24px;font-weight:800}.fc-score-sub{color:var(--muted);font-size:14px}.fc-score-actions{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:22px;display:flex}@media (width<=600px){.fc-face{padding:24px 20px}.fc-card-wrap{min-height:280px}.fc-btn{padding:9px 16px;font-size:13px}}.dark .fc-header-back,.dark .fc-btn-prev{color:#e5e7eb;background:#1f2937;border-color:#374151}.dark .fc-header-back:hover{color:#34d399;background:#0e2f26;border-color:#34d399}.dark .fc-btn-prev:hover:not(:disabled){color:#f3f4f6;background:#111827}.dark .fc-empty,.dark .fc-score{background:#1f2937}.dark .fc-front{background:#1f2937;border-color:#374151}.dark .fc-back{border-color:var(--brand);background:linear-gradient(135deg,#0e2f26,#1f2937)}.dark .fc-answer{color:#d1d5db}.dark .fc-hint{border-color:#374151}.dark .fc-progress-wrap{background:#374151}.rv-layout{align-items:flex-start;gap:20px;display:flex}.rv-toc{border:1px solid var(--line);background:#fff;border-radius:14px;flex-shrink:0;width:240px;max-height:calc(100vh - 40px);padding:18px 12px;position:sticky;top:20px;overflow-y:auto}.rv-toc-title{text-transform:uppercase;letter-spacing:.7px;color:var(--muted);margin-bottom:12px;padding:0 6px;font-size:11px;font-weight:700}.rv-toc-item{color:var(--muted);text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:8px;width:100%;margin-bottom:2px;padding:8px 10px;font-size:12px;font-weight:500;text-decoration:none;display:flex}.rv-toc-item:hover,.rv-toc-item.active{color:var(--brand);background:#e6f7f2}.rv-toc-num{background:var(--bg);color:var(--muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:10px;font-weight:800;display:flex}.rv-toc-item.active .rv-toc-num{background:var(--brand);color:#fff}.rv-toc-label{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}@media (width<=900px){.rv-toc{display:none}}.rv-content{flex:1;min-width:0;max-width:820px}.rv-header{border-bottom:2px solid var(--line);margin-bottom:24px;padding-bottom:18px}.rv-breadcrumb{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px;font-size:13px;display:flex}.rv-breadcrumb a{color:var(--brand);font-weight:600;text-decoration:none}.rv-title{flex-wrap:wrap;align-items:center;gap:12px;font-size:26px;font-weight:800;display:flex}.rv-title-chip{color:var(--brand-dark);background:#e6f7f2;border-radius:20px;padding:4px 14px;font-size:12px;font-weight:700}.rv-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:16px;margin-top:8px;font-size:13px;display:flex}.rv-header-actions{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}.rv-btn{border:1.5px solid var(--line);color:var(--muted);background:#fff;border-radius:8px;align-items:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.rv-btn:hover{color:var(--brand);border-color:var(--brand);background:#e6f7f2}.rv-btn-pdf{color:#b91c1c;background:#fef2f2;border-color:#fecaca}.rv-btn-pdf:hover{color:#b91c1c;background:#fee2e2;border-color:#fecaca}.rv-note-section{background:#fff;border-radius:14px;margin-bottom:20px;scroll-margin-top:20px;overflow:hidden;box-shadow:0 4px 16px #00000014}.rv-note-header{border-bottom:1px solid var(--line);background:linear-gradient(135deg,#f0fdf4,#fafffe);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px 22px;display:flex}.rv-note-header-left{align-items:center;gap:12px;display:flex}.rv-note-num{background:var(--brand);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:800;display:flex}.rv-note-topic{font-size:16px;font-weight:800}.rv-note-meta{color:var(--muted);align-items:center;gap:5px;margin-top:2px;font-size:11px;display:flex}.rv-btn-topic{color:#2563eb;white-space:nowrap;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;align-items:center;gap:5px;padding:6px 12px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.rv-btn-topic:hover{background:#dbeafe}.rv-note-body{color:#374151;word-break:break-word;white-space:pre-wrap;padding:24px 26px 28px;font-size:15px;line-height:1.85}.rv-no-notes{text-align:center;background:#fff;border-radius:14px;padding:56px 32px;box-shadow:0 4px 16px #00000014}.rv-no-notes-icon{color:var(--muted);opacity:.3;margin-bottom:16px;font-size:48px}.dark .rv-toc,.dark .rv-note-section,.dark .rv-no-notes{background:#1f2937;border-color:#374151}.dark .rv-toc-item{color:#9ca3af}.dark .rv-toc-item:hover,.dark .rv-toc-item.active{color:#34d399;background:#0e2f26}.dark .rv-header{border-color:#374151}.dark .rv-btn{color:#e5e7eb;background:#111827;border-color:#374151}.dark .rv-btn:hover{color:#34d399;background:#0e2f26;border-color:#34d399}.dark .rv-note-header{background:linear-gradient(135deg,#0e2f26,#1f2937);border-color:#374151}.dark .rv-note-body{color:#d1d5db}.adm-page{max-width:1180px;margin:0 auto}.adm-chip-row{flex-wrap:wrap;gap:12px;margin-bottom:20px;display:flex}.adm-stat-chip{border:1px solid var(--line);background:#fff;border-radius:10px;min-width:110px;padding:14px 18px;box-shadow:0 1px 3px #0000000f}.adm-stat-chip .num{color:var(--ink);font-size:26px;font-weight:800;line-height:1}.adm-stat-chip .lbl{color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-top:4px;font-size:11px;font-weight:650}.adm-stat-chip.draft .num{color:#6b7280}.adm-stat-chip.approved .num{color:#d97706}.adm-stat-chip.generated .num{color:#2563eb}.adm-stat-chip.published .num{color:var(--brand)}.adm-stat-chip.rejected .num{color:#dc2626}.adm-two-col{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (width<=900px){.adm-two-col{grid-template-columns:1fr}}.adm-tab-btns{border-bottom:1px solid var(--line);gap:4px;margin-bottom:14px;display:flex}.adm-tab-btn{cursor:pointer;color:var(--muted);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:8px 14px;font-size:13px;font-weight:650}.adm-tab-btn:hover{color:var(--ink)}.adm-tab-btn.active{color:var(--brand);border-bottom-color:var(--brand)}.adm-plain-label{margin-bottom:6px;font-size:13px;font-weight:650;display:block}.adm-full-select{border:1.5px solid var(--line);width:100%;font:inherit;color:var(--ink);background:#fff;border-radius:8px;margin-bottom:12px;padding:9px 12px}.adm-full-file{border:1.5px solid var(--line);border-radius:8px;width:100%;margin-bottom:12px;padding:8px 10px;font-size:13px}.adm-btn.blue{color:#2563eb;background:#eff6ff;border-color:#bfdbfe}.adm-btn.blue:hover:not(:disabled){background:#dbeafe}.adm-btn.purple{color:#7c3aed;background:#f5f3ff;border-color:#ddd6fe}.adm-btn.purple:hover:not(:disabled){background:#ede9fe}.adm-toast-stack{z-index:999;flex-direction:column;gap:8px;max-width:360px;display:flex;position:fixed;top:78px;right:20px}.adm-toast{border-radius:8px;padding:12px 16px;font-size:13px;font-weight:600;box-shadow:0 4px 16px #00000026}.adm-toast.success{color:#15803d;background:#dcfce7}.adm-toast.error{color:#b91c1c;background:#fee2e2}.adm-subject-block{border:1px solid var(--line);border-radius:10px;margin-bottom:14px;overflow:hidden}.adm-subject-header{background:var(--bg);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;display:flex}.adm-stats-row{flex-wrap:wrap;gap:16px;margin-bottom:24px;display:flex}.adm-stat-card{background:#fff;border-radius:14px;flex:1;align-items:center;gap:14px;min-width:160px;padding:18px 20px;display:flex;box-shadow:0 4px 16px #00000014}.adm-stat-icon{width:44px;height:44px;color:var(--brand);background:#e6f7f2;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;font-size:20px;display:flex}.adm-stat-label{color:var(--muted);font-size:12px;font-weight:600}.adm-stat-value{margin-top:2px;font-size:24px;font-weight:800}.adm-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;display:grid}.adm-tile{text-align:center;color:var(--ink);background:#fff;border:1.5px solid #0000;border-radius:14px;flex-direction:column;align-items:center;gap:12px;padding:24px 20px;text-decoration:none;transition:all .18s;display:flex;box-shadow:0 4px 16px #00000014}.adm-tile:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-4px)}.adm-tile-icon{width:52px;height:52px;color:var(--brand);background:#e6f7f2;border-radius:14px;justify-content:center;align-items:center;font-size:24px;display:flex}.adm-tile-label{font-size:14px;font-weight:700}.adm-tile-desc{color:var(--muted);font-size:12px;line-height:1.5}.adm-tile-badge{color:#fff;background:#ef4444;border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 5px;font-size:11px;font-weight:800;display:inline-flex}.adm-tile-count{color:var(--muted);font-size:12px;font-weight:700}.adm-card{background:#fff;border-radius:14px;margin-bottom:20px;padding:20px 22px;box-shadow:0 4px 16px #00000014}.adm-card h2{align-items:center;gap:8px;margin-bottom:14px;font-size:15px;font-weight:700;display:flex}.adm-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.adm-table-wrap{overflow-x:auto}.adm-table{border-collapse:collapse;width:100%;font-size:13px}.adm-table th{background:var(--bg);text-align:left;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);border-bottom:1px solid var(--line);white-space:nowrap;padding:10px 14px;font-size:11px;font-weight:700}.adm-table td{border-bottom:1px solid var(--line);vertical-align:middle;padding:10px 14px}.adm-table tr:hover td{background:var(--bg)}.adm-table .actions{flex-wrap:wrap;gap:6px;display:flex}.adm-badge{white-space:nowrap;border-radius:12px;align-items:center;gap:4px;padding:3px 9px;font-size:11px;font-weight:700;display:inline-flex}.adm-badge.draft{color:#475569;background:#f1f5f9}.adm-badge.draft-approved{color:#1e40af;background:#dbeafe}.adm-badge.draft-rejected{color:#b91c1c;background:#fee2e2}.adm-badge.generated{color:#a16207;background:#fef9c3}.adm-badge.published,.adm-badge.free{color:#15803d;background:#dcfce7}.adm-badge.premium{color:#92400e;background:#fef3c7}.adm-badge.role-admin{color:#6d28d9;background:#ede9fe}.adm-badge.pending{color:#c2410c;background:#fff7ed}.adm-badge.approved{color:#15803d;background:#dcfce7}.adm-badge.rejected{color:#b91c1c;background:#fee2e2}.adm-btn{border:1.5px solid var(--line);color:var(--muted);cursor:pointer;white-space:nowrap;background:#fff;border-radius:7px;align-items:center;gap:5px;padding:6px 12px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.adm-btn:hover:not(:disabled){color:var(--brand);border-color:var(--brand);background:#e6f7f2}.adm-btn:disabled{opacity:.5;cursor:not-allowed}.adm-btn.danger:hover:not(:disabled){color:#b91c1c;background:#fee2e2;border-color:#fecaca}.adm-btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.adm-btn.primary:hover:not(:disabled){background:var(--brand-dark);color:#fff}.adm-btn.amber{color:#92400e;background:#fef3c7;border-color:#fde68a}.adm-btn.amber:hover:not(:disabled){color:#78350f;background:#fde68a}.adm-header-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.adm-header-actions{flex-wrap:wrap;gap:8px;display:flex}.adm-batch-stats{gap:10px;margin-bottom:14px;display:flex}.adm-batch-stat{text-align:center;border:1px solid var(--line);background:var(--bg);border-radius:10px;flex:1;padding:12px 8px}.adm-batch-stat .val{color:var(--ink);font-size:20px;font-weight:800}.adm-batch-stat .lbl{color:var(--muted);margin-top:2px;font-size:11px;font-weight:600}.adm-last-run{background:var(--bg);border:1px solid var(--line);border-radius:8px;margin-bottom:12px;padding:10px;font-size:12px}.adm-last-run-status{align-items:center;gap:6px;margin-bottom:3px;font-weight:700;display:flex}.adm-last-run-meta{color:var(--muted)}.adm-manual-tag{color:#a16207;font-weight:600}.adm-status-dot{border-radius:50%;width:8px;height:8px;display:inline-block}.adm-status-dot.green{background:#16a34a}.adm-status-dot.amber{background:#d97706}.adm-status-dot.grey{background:#94a3b8}.adm-msg.warning{color:#92400e;background:#fef3c7;align-items:center;gap:8px;display:flex}.adm-modal-overlay{z-index:200;background:#0f172a80;justify-content:center;align-items:center;padding:20px;display:none;position:fixed;inset:0}.adm-modal-overlay.open{display:flex}.adm-modal{background:#fff;border-radius:14px;flex-direction:column;width:100%;max-width:640px;max-height:85vh;display:flex;overflow:hidden;box-shadow:0 20px 60px #00000040}.adm-modal-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.adm-modal-title{align-items:center;gap:8px;font-size:15px;font-weight:700;display:flex}.adm-modal-close{color:var(--muted);cursor:pointer;background:0 0;border:0;padding:4px;font-size:16px}.adm-modal-close:hover{color:var(--ink)}.adm-modal-body{flex:1;padding:18px 20px;overflow-y:auto}.adm-modal-footer{border-top:1px solid var(--line);gap:10px;padding:14px 20px;display:flex}.adm-preview-label{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:14px 0 6px;font-size:11px;font-weight:700}.adm-preview-label:first-child{margin-top:0}.adm-content-preview{white-space:pre-wrap;color:var(--ink);font-size:13.5px;line-height:1.7}.adm-code-preview{color:#e2e8f0;white-space:pre-wrap;background:#0f172a;border-radius:8px;padding:12px 14px;font-size:12.5px;overflow-x:auto}.adm-tag{background:var(--bg);color:var(--muted);border-radius:10px;margin-right:5px;padding:2px 9px;font-size:11px;font-weight:650;display:inline-block}.adm-ai-box{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px;margin-top:14px;padding:12px 14px}.adm-ai-box.amber{background:#fffbeb;border-color:#fde68a}.adm-ai-box-label{color:#166534;align-items:center;gap:6px;margin-bottom:4px;font-size:12px;font-weight:700;display:flex}.adm-ai-box.amber .adm-ai-box-label{color:#92400e}.adm-ai-box p{color:#166534;margin:0;font-size:13px}.adm-ai-box.amber p{color:#92400e}.adm-ai-reason{opacity:.8;margin-top:4px!important;font-size:12px!important}.adm-form{gap:16px;max-width:720px;display:grid}.adm-form label{color:var(--muted);gap:6px;font-size:13px;font-weight:650;display:grid}.adm-form input,.adm-form select,.adm-form textarea{border:1.5px solid var(--line);font:inherit;color:var(--ink);border-radius:8px;padding:10px 12px}.adm-form input:focus,.adm-form select:focus,.adm-form textarea:focus{border-color:var(--brand);outline:none}.adm-form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.adm-form-actions{align-items:center;gap:10px;display:flex}.adm-checkbox-row{color:var(--ink);flex-direction:row;align-items:center;gap:8px;font-weight:600;display:flex}.adm-empty{text-align:center;color:var(--muted);padding:40px 20px}.adm-filter-tabs{flex-wrap:wrap;gap:6px;display:flex}.adm-filter-tab{border:1.5px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:20px;padding:6px 14px;font-size:12px;font-weight:650}.adm-filter-tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}.adm-struggle-item{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;padding:10px 0;font-size:13px;display:flex}.adm-struggle-item:last-child{border-bottom:none}.adm-msg{border-radius:8px;margin-bottom:14px;padding:10px 14px;font-size:13px}.adm-msg.success{color:#15803d;background:#dcfce7}.adm-msg.error{color:#b91c1c;background:#fee2e2}@media (width<=700px){.adm-form-row{grid-template-columns:1fr}}.dark .adm-stat-chip,.dark .adm-stat-card,.dark .adm-tile,.dark .adm-card,.dark .adm-modal,.dark .adm-batch-stat,.dark .adm-last-run{background:#1f2937;border-color:#374151}.dark .adm-full-select,.dark .adm-full-file,.dark .adm-form input,.dark .adm-form select,.dark .adm-form textarea,.dark .adm-btn,.dark .adm-filter-tab{color:#e5e7eb;background:#111827;border-color:#374151}.dark .adm-btn:hover:not(:disabled){background:#0e2f26}.dark .adm-tab-btns,.dark .adm-modal-header,.dark .adm-modal-footer,.dark .adm-subject-block,.dark .adm-snippet-section,.dark .adm-struggle-item{border-color:#374151}.dark .adm-tile:hover{color:#34d399}.dark .adm-tile-icon,.dark .adm-stat-icon{background:#0e2f26}.dark .adm-content-preview,.dark .adm-checkbox-row{color:#e5e7eb}.dark .adm-empty,.dark .adm-tag{color:#9ca3af}.dark .adm-table td{border-color:#374151}.dark .adm-modal-close:hover{color:#f3f4f6}