:root{--accent: #EA580C;--accent-2: #B8460A;--accent-ink: #0a0a0a;--ink: #0a0a0a;--on-ink: #ffffff;--accent-tint: rgba(234, 88, 12, .1);--accent-text: #B8460A;--bg: #F7F7F8;--surface: #FFFFFF;--surface-2: #FFFFFF;--text: #0a0a0a;--text-soft: #444448;--muted: #8A8A90;--border: #E7E7EA;--field-bg: #FFFFFF;--desk-bg: #DCE3EC;--success: #22C55E;--danger: #EF4444;--paper: var(--bg);--white: var(--surface);--mist: var(--border);--ink-soft: var(--text-soft);--accent-dark: var(--accent-text);--font-display: "Space Grotesk", sans-serif;--font-body: "Inter", sans-serif;--font-mono: "JetBrains Mono", monospace;--radius-s: 12px;--radius-m: 16px;--radius-l: 22px;--shadow-card: 0 2px 14px rgba(0,0,0,.07);--shadow-nav: 0 -2px 20px rgba(0,0,0,.1);--app-max: 480px;--desk-max: 1080px;--bottom-nav-h: 66px;--topbar-h: 58px}:root[data-theme=dark]{--accent-tint: rgba(234, 88, 12, .18);--accent-text: #F2915C;--bg: #0d0d10;--surface: #17171b;--surface-2: #1e1e24;--text: #f2f2f4;--text-soft: #c7c7cd;--muted: #8f8f97;--border: #2a2a31;--field-bg: #1e1e24;--desk-bg: #050506;--shadow-card: 0 2px 16px rgba(0,0,0,.45);--shadow-nav: 0 -2px 20px rgba(0,0,0,.55)}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{font-family:var(--font-body);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;transition:background .2s ease,color .2s ease}h1,h2,h3,h4{font-family:var(--font-display);color:var(--text);margin:0 0 8px;line-height:1.2}a{text-decoration:none;color:inherit}button{font-family:var(--font-body);cursor:pointer}img{max-width:100%;display:block}.mono{font-family:var(--font-mono)}.app-shell{max-width:var(--app-max);margin:0 auto;min-height:100vh;background:var(--bg);position:relative}.topbar{height:var(--topbar-h);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;background:var(--ink);color:var(--on-ink);position:sticky;top:0;z-index:30}.topbar .brand{display:flex;align-items:center;gap:8px;min-width:0}.topbar .brand img{height:30px}.topbar .brand span{font-family:var(--font-display);font-weight:700;font-size:.95rem;white-space:nowrap}.topbar .icon-btn{width:36px;height:36px;border-radius:10px;background:#ffffff1a;border:none;color:var(--on-ink);display:flex;align-items:center;justify-content:center;font-size:1.1rem}.topbar .back-btn{font-size:1.3rem}.topbar-right{display:flex;align-items:center;gap:10px}.desktop-nav{display:none}.page{padding:16px 16px 90px;min-height:calc(100vh - var(--topbar-h))}.profile-btn{width:36px;height:36px;border-radius:50%;padding:0;border:1.5px solid rgba(255,255,255,.25);background:#ffffff1f;color:var(--on-ink);overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0}.profile-btn img{width:100%;height:100%;object-fit:cover}.profile-btn .initial{font-family:var(--font-display);font-weight:700;font-size:.9rem}.menu-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;background:transparent}.profile-menu{position:absolute;top:calc(var(--topbar-h) - 6px);right:12px;z-index:61;width:250px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-m);box-shadow:0 8px 30px #0000002e;overflow:hidden}.profile-menu .pm-head{display:flex;align-items:center;gap:10px;padding:14px;border-bottom:1px solid var(--border)}.profile-menu .pm-head .avatar-circle{width:40px;height:40px}.profile-menu .pm-head .nm{font-weight:600;font-size:.85rem}.profile-menu .pm-head .rl{font-size:.72rem;color:var(--muted)}.menu-item{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:12px 14px;background:none;border:none;color:var(--text);font-size:.85rem}.menu-item:hover{background:var(--bg)}.menu-item svg{color:var(--muted);flex-shrink:0}.menu-item.danger{color:var(--danger)}.menu-item.danger svg{color:var(--danger)}.menu-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;font-size:.85rem;border-top:1px solid var(--border)}.menu-row .lbl{display:flex;align-items:center;gap:12px}.menu-row .lbl svg{color:var(--muted)}.switch{position:relative;width:44px;height:24px;border-radius:20px;background:var(--border);border:none;flex-shrink:0;transition:background .2s}.switch.on{background:var(--accent)}.switch .knob{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .2s;box-shadow:0 1px 3px #0000004d}.switch.on .knob{transform:translate(20px)}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:var(--app-max);height:var(--bottom-nav-h);background:var(--surface);box-shadow:var(--shadow-nav);display:flex;border-top:1px solid var(--border);z-index:40;padding-bottom:env(safe-area-inset-bottom,0)}.bottom-nav a,.bottom-nav button{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);font-size:.68rem;font-weight:600;background:none;border:none}.bottom-nav .nav-icon{display:flex;align-items:center;justify-content:center;line-height:1}.bottom-nav a.active,.bottom-nav button.active{color:var(--accent)}.card{background:var(--surface);border-radius:var(--radius-m);padding:16px;box-shadow:var(--shadow-card);margin-bottom:14px;border:1px solid var(--border)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-s);padding:13px 20px;font-weight:600;font-size:.95rem;width:100%;transition:transform .08s ease,filter .15s ease}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-primary:hover{filter:brightness(1.05)}.btn-dark{background:var(--ink);color:var(--on-ink)}.btn-ghost{background:var(--border);color:var(--text)}.btn-outline{background:transparent;border:2px solid var(--on-ink);color:var(--on-ink)}.btn-outline-dark{background:transparent;border:1.5px solid var(--border);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:8px 14px;font-size:.82rem;width:auto}.btn-row{display:flex;gap:8px}.btn-row .btn{flex:1}.field{margin-bottom:14px}.field label{display:block;font-size:.8rem;font-weight:600;color:var(--text-soft);margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:var(--radius-s);border:1.5px solid var(--border);font-family:var(--font-body);font-size:.95rem;background:var(--field-bg);color:var(--text)}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);outline:none}.field textarea{resize:vertical;min-height:90px}.field-error{color:var(--danger);font-size:.78rem;margin-top:4px}.field small.hint{display:block;color:var(--muted);font-size:.75rem;margin-top:4px}.badge{display:inline-block;font-family:var(--font-mono);font-size:.7rem;font-weight:600;padding:3px 9px;border-radius:20px;background:var(--border);color:var(--text-soft);margin-right:4px}.badge-accent{background:var(--accent-tint);color:var(--accent-text)}.badge-success{background:#22c55e24;color:#17803c}.badge-danger{background:#ef444424;color:#b91c1c}.hero{background:linear-gradient(155deg,#161616,#0b0b0b);color:#fff;border-radius:var(--radius-l);padding:26px 20px;margin-bottom:18px;position:relative;overflow:hidden;border:1.5px solid rgba(234,88,12,.35)}.hero:before{content:"";position:absolute;top:-50px;right:-30px;width:180px;height:180px;border-radius:50%;background:#ea580c40;filter:blur(45px);pointer-events:none}.hero>*{position:relative}.hero .eyebrow{color:var(--accent);font-family:var(--font-mono);font-size:.68rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase}.hero h1{color:#fff;font-size:1.55rem;margin:8px 0 6px}.hero p{color:#c9c9cf;margin:0 0 16px;font-size:.85rem}.bit-pulse{display:flex;gap:5px;justify-content:center;margin:20px 0}.bit-pulse span{width:15px;height:15px;border-radius:4px;background:var(--border);font-family:var(--font-mono);font-size:8px;display:flex;align-items:center;justify-content:center;color:var(--accent-text);animation:bitflip 1.6s infinite ease-in-out}.bit-pulse span:nth-child(odd){animation-delay:.15s}.bit-pulse span:nth-child(3n){animation-delay:.3s}@keyframes bitflip{0%,to{background:var(--border);color:var(--accent-text)}50%{background:var(--accent);color:var(--accent-ink)}}@media (prefers-reduced-motion: reduce){.bit-pulse span{animation:none}}.section-title{display:flex;align-items:center;justify-content:space-between;margin:22px 0 12px}.section-title h2{font-size:1.05rem;margin:0}.section-title a,.section-title button{font-size:.78rem;color:var(--accent-text);font-weight:600;background:none;border:none}.stat-row{display:flex;gap:10px;margin-bottom:4px}.stat-card{flex:1;background:var(--surface);border-radius:14px;padding:12px;text-align:center;box-shadow:var(--shadow-card);border:1px solid var(--border)}.stat-card .num{font-family:var(--font-mono);font-weight:700;font-size:1.15rem;color:var(--text)}.stat-card .num.accent{color:var(--accent-text)}.stat-card .lbl{font-size:.65rem;color:var(--muted);margin-top:2px}.course-card{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}.course-card h3{font-size:.95rem;margin:0 0 6px}.course-card .fee{font-family:var(--font-mono);font-weight:700;color:var(--text);font-size:1rem;text-align:right;white-space:nowrap}.course-card .fee small{display:block;font-family:var(--font-body);font-weight:400;color:var(--muted);font-size:.65rem}.course-img{width:100%;height:130px;object-fit:cover;border-radius:var(--radius-s);margin-bottom:10px;background:var(--border)}.search-box{display:flex;align-items:center;gap:8px;background:var(--surface);border:1.5px solid var(--border);border-radius:12px;padding:10px 12px;margin-bottom:16px;font-size:.85rem;color:var(--muted)}.search-box input{border:none;outline:none;flex:1;font-size:.9rem;background:transparent;color:var(--text)}.filter-row{display:flex;gap:8px;overflow-x:auto;margin-bottom:14px;padding-bottom:2px}.filter-chip{flex-shrink:0;padding:6px 13px;border-radius:20px;border:1.5px solid var(--border);font-size:.75rem;font-weight:600;color:var(--text-soft);background:var(--surface)}.filter-chip.active{background:var(--ink);border-color:var(--ink);color:var(--on-ink)}.list-item{display:flex;align-items:center;gap:12px}.icon-tile{width:42px;height:42px;border-radius:11px;background:var(--accent-tint);color:var(--accent-text);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}.list-item .body{flex:1;min-width:0}.list-item .title{font-weight:600;font-size:.88rem;color:var(--text);margin-bottom:2px}.list-item .sub{font-size:.75rem;color:var(--muted)}.chevron{color:var(--muted);font-size:1.1rem;display:flex;align-items:center}.pin-tag{display:inline-flex;align-items:center;gap:4px;font-size:.62rem;font-weight:700;color:var(--accent-text);background:var(--accent-tint);padding:2px 8px;border-radius:20px;margin-bottom:6px}.notice-date{font-family:var(--font-mono);font-size:.65rem;color:var(--muted)}.notice-img{width:100%;border-radius:var(--radius-s);margin:8px 0;max-height:220px;object-fit:cover}.avatar-circle{width:44px;height:44px;border-radius:50%;background:var(--accent-tint);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;color:var(--accent-text);overflow:hidden;flex-shrink:0}.avatar-circle img{width:100%;height:100%;object-fit:cover}.testimonial .stars{color:var(--accent);letter-spacing:2px;font-size:.8rem}.testimonial p{font-size:.85rem;color:var(--text-soft);font-style:italic;margin:6px 0 0}.testimonial .who{margin-top:8px;font-weight:600;font-size:.8rem;color:var(--text);font-style:normal}.empty-state{text-align:center;padding:40px 20px;color:var(--muted);font-size:.85rem}.empty-state .emoji{font-size:2rem;margin-bottom:10px}.whatsapp-fab{position:fixed;right:calc(50% - var(--app-max)/2 + 16px);bottom:calc(var(--bottom-nav-h) + 16px);width:52px;height:52px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px #00000040;font-size:1.4rem;z-index:45}@media (max-width: 480px){.whatsapp-fab{right:16px}}.install-banner{position:fixed;bottom:calc(var(--bottom-nav-h) + 10px);left:50%;transform:translate(-50%);width:calc(100% - 32px);max-width:calc(var(--app-max) - 32px);background:var(--ink);color:var(--on-ink);border-radius:var(--radius-m);padding:12px 14px;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-nav);z-index:50}.install-banner .txt{flex:1;font-size:.75rem;line-height:1.35}.install-banner .txt b{color:var(--accent)}.install-banner button.install-btn{background:var(--accent);color:var(--accent-ink);border:none;border-radius:8px;padding:7px 12px;font-size:.72rem;font-weight:700}.install-banner button.dismiss{background:none;border:none;color:#c9c9cf;font-size:1.1rem;padding:2px 6px}.toast{position:fixed;top:12px;left:50%;transform:translate(-50%);background:var(--ink);color:#fff;padding:10px 18px;border-radius:30px;font-size:.85rem;z-index:100;box-shadow:var(--shadow-card);max-width:calc(100% - 40px);text-align:center}.toast.error{background:var(--danger)}.toast.success{background:var(--success)}.viewer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}.viewer-modal{background:var(--surface);border-radius:var(--radius-m);width:100%;max-width:700px;height:100%;max-height:90vh;display:flex;flex-direction:column;overflow:hidden}.viewer-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border-bottom:1px solid var(--border)}.viewer-title{font-weight:600;font-size:.88rem;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.viewer-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.viewer-close{background:var(--border);border:none;border-radius:50%;width:30px;height:30px;font-size:.9rem;line-height:1;color:var(--text)}.viewer-body{flex:1;overflow:auto;background:var(--bg);display:flex;position:relative}.viewer-body.pdf{flex-direction:column;align-items:center;padding:12px}.viewer-body img{margin:auto;max-width:100%;max-height:100%;object-fit:contain}.viewer-foot{padding:8px 14px;border-top:1px solid var(--border);font-size:.72rem;color:var(--muted);text-align:center}.viewer-progress{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:40px 20px}.viewer-bar{width:200px;height:8px;background:var(--border);border-radius:20px;overflow:hidden}.viewer-bar-fill{height:100%;background:var(--accent);border-radius:20px;transition:width .15s ease}.viewer-bar.indeterminate .viewer-bar-fill{width:40%;animation:barslide 1.1s ease-in-out infinite}@keyframes barslide{0%{margin-left:-40%}to{margin-left:100%}}.viewer-pct{font-size:1.05rem;font-weight:700;color:var(--text)}.viewer-hint{font-size:.8rem;color:var(--muted)}.pdf-pages{width:100%;display:flex;flex-direction:column;align-items:center;gap:12px}.pdf-holder{display:flex;align-items:center;justify-content:center;background:var(--surface);border-radius:4px;box-shadow:0 2px 10px #00000040;flex-shrink:0}canvas.pdf-page{display:block;max-width:100%;border-radius:4px;background:#fff}.noselect{user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none}.login-wrap{padding-top:6px}.login-logo{display:flex;justify-content:center;margin-bottom:18px}.login-logo img{height:60px}.page-head{padding:4px 0 16px}.page-head h1{font-size:1.35rem;margin:0 0 4px}.page-head p{font-size:.8rem;color:var(--muted);margin:0}.helper-text{font-size:.75rem;color:var(--muted);text-align:center;margin-top:14px;line-height:1.5}.helper-text b{color:var(--text)}.rank-badge{font-family:var(--font-mono);font-weight:700;font-size:1.9rem;color:var(--text)}.option-row{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1.5px solid var(--border);border-radius:var(--radius-s);margin-bottom:8px;background:var(--surface);width:100%;text-align:left;color:var(--text)}.option-row.selected{border-color:var(--accent);background:var(--accent-tint)}.option-row.correct{border-color:var(--success);background:#22c55e1a}.option-row.wrong{border-color:var(--danger);background:#ef44441a}.option-letter{width:26px;height:26px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:600;font-size:.75rem;flex-shrink:0}.timer-pill{font-family:var(--font-mono);font-weight:700;background:var(--ink);color:var(--on-ink);padding:6px 14px;border-radius:20px;font-size:.85rem;display:inline-block}.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;margin-bottom:14px}.tabs button{flex-shrink:0;padding:8px 14px;border-radius:20px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-soft);font-size:.78rem;font-weight:600}.tabs button.active{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}.table-wrap{overflow-x:auto}table.admin-table{width:100%;border-collapse:collapse;font-size:.8rem}table.admin-table th,table.admin-table td{padding:10px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;color:var(--text)}table.admin-table th{color:var(--muted);font-size:.68rem;text-transform:uppercase;letter-spacing:.03em}.admin-topline{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.admin-topline h2{margin:0;font-size:1.1rem}.thumb-sm{width:44px;height:44px;border-radius:8px;object-fit:cover;background:var(--border)}.file-input-label{display:flex;align-items:center;gap:10px;border:1.5px dashed var(--border);border-radius:var(--radius-s);padding:12px 14px;font-size:.82rem;color:var(--muted);cursor:pointer}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.card-grid{display:grid;gap:14px;grid-template-columns:1fr}.card-grid>.card{margin-bottom:0}.gallery-grid{display:grid;gap:10px;grid-template-columns:1fr 1fr}@media (min-width: 640px){.card-grid.cols-2{grid-template-columns:1fr 1fr}}@media (min-width: 700px){.gallery-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width: 900px){.card-grid.cols-2{grid-template-columns:1fr 1fr}.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}}@media (min-width: 1000px){.gallery-grid{grid-template-columns:repeat(4,1fr)}}.muted-text{font-size:.78rem;color:var(--muted);margin:8px 0 0;line-height:1.5}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;margin:20px auto}@keyframes spin{to{transform:rotate(360deg)}}.spinner-sm{width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.mat-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.mat-actions .btn-sm{gap:5px}.icon-action{width:36px;height:36px;border-radius:10px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-soft);display:flex;align-items:center;justify-content:center;flex-shrink:0}.icon-action:disabled{opacity:.7}.icon-action.done{color:var(--success);border-color:var(--success);background:#22c55e1a}.home-hero-stats{display:none}.course-grid>.card{margin-bottom:0}.course-thumb{width:100%;height:120px;border-radius:var(--radius-s);margin-bottom:10px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--accent-tint)}.course-thumb img{width:100%;height:100%;object-fit:cover}.course-thumb svg{color:var(--accent-text)}.course-grid .course-card{flex-direction:column;align-items:stretch}.course-grid .course-card .fee{text-align:left}.course-grid .card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto}@media (min-width: 900px){body{background:var(--desk-bg)}.app-shell{max-width:var(--desk-max);margin:0 auto;min-height:100vh;background:var(--bg)}.topbar{padding:0 28px}.desktop-nav{display:flex;align-items:center;gap:4px}.desktop-nav a{padding:8px 14px;border-radius:10px;font-size:.85rem;font-weight:600;color:#c9c9cf}.desktop-nav a:hover{color:#fff;background:#ffffff14}.desktop-nav a.active{color:var(--accent)}.bottom-nav{display:none}.whatsapp-fab{right:28px;bottom:28px}.install-banner{max-width:360px;left:auto;right:28px;transform:none}.page{padding:28px 32px 40px;max-width:900px;margin:0 auto}.page:has(.home-page){max-width:var(--desk-max)}.home-page .hero{display:flex;gap:28px;align-items:center;padding:40px 36px}.home-page .hero .hero-main{flex:1}.home-page .hero h1{font-size:2.4rem}.home-page .hero p{font-size:1rem;max-width:460px}.home-page .hero .btn-row{max-width:380px}.home-hero-stats{display:flex;flex-direction:column;gap:12px}.home-hero-stats .hs{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:14px 22px;text-align:center;min-width:120px}.home-hero-stats .hs .num{font-family:var(--font-mono);font-weight:700;font-size:1.5rem;color:#fff}.home-hero-stats .hs .num.accent{color:var(--accent)}.home-hero-stats .hs .lbl{font-size:.68rem;color:#9a9aa0;margin-top:2px}.home-page .bit-pulse,.home-page .stat-row{display:none}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:stretch}.home-page .section-title h2{font-size:1.3rem}}@media (min-width: 640px) and (max-width: 899px){.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.course-grid .course-card{flex-direction:column;align-items:stretch}}