@import "https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap";
:root{--font-sans:"Manrope", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;--koeta-ink:#17213c;--koeta-indigo:#5956e9;--koeta-indigo-hover:#4845d4;--koeta-growth:#36837e;--koeta-growth-light:#e6f3f2;--koeta-growth-text:#1e5652;--koeta-warm:#fff2c7;--koeta-warm-dark:#78350f;--koeta-soft:#f6f6fb;--background:var(--koeta-soft);--bg-gradient:radial-gradient(at 0% 0%, #5956e912 0px, transparent 55%), radial-gradient(at 100% 0%, #36837e0f 0px, transparent 50%);--foreground:var(--koeta-ink);--primary:var(--koeta-indigo);--primary-hover:var(--koeta-indigo-hover);--primary-light:#5956e914;--surface:#fff;--border:#e6e8f0;--border-focus:#5956e9;--success:var(--koeta-growth);--success-light:var(--koeta-growth-light);--success-text:var(--koeta-growth-text);--error:#e11d48;--error-light:#fff1f2;--error-text:#9f1239;--warning:#d97706;--warning-light:var(--koeta-warm);--warning-text:var(--koeta-warm-dark);--text-muted:#4e5a71;--glass-bg:#ffffffe0;--glass-border:#e6e8f0cc;--shadow-sm:0 1px 3px #17213c0d;--shadow:0 10px 30px -12px #17213c14, 0 2px 6px -2px #17213c0a;--shadow-hover:0 18px 40px -14px #5956e92e, 0 4px 10px -4px #17213c0f;--radius:18px}*{box-sizing:border-box;margin:0;padding:0}button,input,select,textarea{color:inherit;font-family:inherit;font-size:1rem}body{font-family:var(--font-sans);background-color:var(--background);background-image:var(--bg-gradient);color:var(--foreground);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;min-height:100vh;padding-bottom:env(safe-area-inset-bottom,0px);background-attachment:fixed;line-height:1.6}.container{max-width:860px;margin:0 auto;padding:2rem}@media (max-width:640px){.container{padding:.85rem .75rem 2.5rem}.card{margin-bottom:1rem;border-radius:16px!important;padding:1.15rem 1rem!important}}.hero-cockpit-card{border-radius:24px;padding:1.75rem}@media (max-width:640px){.hero-cockpit-card{border-radius:16px!important;padding:1.15rem 1rem!important}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1.5rem;padding:1.6rem;transition:transform .3s cubic-bezier(.16,1,.3,1),box-shadow .3s}.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border)}.btn{background:linear-gradient(135deg, var(--primary), var(--primary-hover));color:#fff;letter-spacing:-.01em;cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;padding:.8rem 1.6rem;font-size:1rem;font-weight:600;text-decoration:none;transition:transform .18s,box-shadow .18s,opacity .18s;display:inline-flex;box-shadow:0 4px 12px #4f46e533}.btn:hover{transform:translateY(-1.5px);box-shadow:0 8px 22px #4f46e552}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.input,.textarea{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--foreground);border-radius:12px;margin-bottom:1rem;padding:.85rem 1rem;font-family:inherit;font-size:16px;transition:border-color .2s,box-shadow .2s}.input:focus,.textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--primary-light);outline:none}.title{letter-spacing:-.02em;color:var(--foreground);margin-bottom:1.5rem;font-size:2rem;font-weight:800}.subtitle{color:var(--text-muted);margin-bottom:1rem;font-size:1.2rem;font-weight:600}.label{color:var(--foreground);margin-bottom:.5rem;font-weight:600;display:block}.badge{border-radius:9999px;align-items:center;padding:.3rem .85rem;font-size:.875rem;font-weight:600;line-height:1.2;display:inline-flex}.badge-success{background:var(--success-light);color:var(--success-text)}.badge-warning{background:var(--warning-light);color:var(--warning-text)}.badge-error{background:var(--error-light);color:var(--error-text)}.badge-neutral{color:#334155;background:#f1f5f9}.badge-info{background:var(--primary-light);color:var(--primary)}.progress-track{background:var(--border);border-radius:9999px;width:100%;overflow:hidden}.progress-fill{transform-origin:0;border-radius:9999px;height:100%;transition:width .5s cubic-bezier(.16,1,.3,1);animation:.7s cubic-bezier(.16,1,.3,1) both barGrow}@keyframes barGrow{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.animate-fade-in{animation:.4s ease-out forwards fadeIn}@media (prefers-reduced-motion:reduce){.card,.btn,.progress-fill,.animate-fade-in{transition:none;animation:none}}.btn-secondary{background:var(--surface);color:var(--foreground);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--primary-light);border-color:var(--border-focus);box-shadow:none}.btn-ghost{color:var(--primary);box-shadow:none;background:0 0}.btn-ghost:hover{background:var(--primary-light);box-shadow:none;transform:none}.btn-danger{color:#fff;background:linear-gradient(135deg,#e11d48,#be123c);box-shadow:0 4px 12px #e11d4840}.btn-danger:hover{box-shadow:0 8px 22px #e11d4859}.btn-warning{color:#451a03;background:linear-gradient(135deg,#f59e0b,#d97706);font-weight:700;box-shadow:0 4px 12px #d9770640}.btn-warning:hover{box-shadow:0 8px 22px #d9770659}.btn-success{color:#fff;background:linear-gradient(135deg,#059669,#047857);font-weight:600;box-shadow:0 4px 12px #05966940}.btn-success:hover{box-shadow:0 8px 22px #05966959}.choice-btn{border:2px solid var(--border);background:var(--surface);min-height:52px;color:var(--foreground);cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;padding:.75rem .6rem;font-size:.95rem;font-weight:600;transition:all .15s;display:flex}.choice-btn:hover{border-color:var(--border-focus);background:var(--primary-light)}.choice-btn.active{border-color:var(--primary);background:var(--primary-light);color:var(--primary);box-shadow:0 0 0 1px var(--primary);font-weight:700}.choice-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.mobile-action-bar{z-index:40;padding:.85rem 1rem calc(.85rem + env(safe-area-inset-bottom,0px));background:var(--surface);border-top:1px solid var(--border);flex-direction:column;gap:.5rem;margin:1.5rem -1rem -1rem;display:flex;position:sticky;bottom:0;left:0;right:0;box-shadow:0 -8px 24px -4px #0f172a14}@media (min-width:641px){.mobile-action-bar{box-shadow:none;background:0 0;border-top:none;margin:1.5rem 0 0;padding:0;position:static}}.banner{border:1px solid var(--border);color:var(--foreground);border-radius:12px;margin-bottom:1rem;padding:.8rem 1rem;font-size:.92rem;line-height:1.5}.banner-info{background:var(--primary-light);border-color:var(--border-focus);color:var(--foreground)}.banner-success{background:var(--success-light);color:var(--success-text);border-color:#05966959}.banner-warning{background:var(--warning-light);color:var(--warning-text);border-color:#d9770659}.banner-error{background:var(--error-light);color:var(--error-text);border-color:#e11d4859}.banner-neutral{background:var(--surface);border-color:var(--border)}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex:1;min-width:130px;padding:1.1rem 1.25rem}.stat-value{letter-spacing:-.02em;color:var(--primary);font-size:1.9rem;font-weight:800;line-height:1.1}.stat-label{color:var(--text-muted);margin-top:.2rem;font-size:.85rem}.stat-success{background:var(--success-light);border-color:#05966940}.stat-success .stat-value{color:var(--success)}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.25rem;display:flex}.row{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.stack{flex-direction:column;gap:.75rem;display:flex}.muted{color:var(--text-muted)}.stat-row{flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem;display:flex}.grid-2{grid-template-columns:1fr 2fr;gap:1.5rem;display:grid}@media (max-width:640px){.grid-2{grid-template-columns:1fr}}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--background:#0e1322;--bg-gradient:radial-gradient(at 0% 0%, #5956e947 0px, transparent 60%), radial-gradient(at 100% 100%, #36837e29 0px, transparent 50%);--foreground:#f8fafc;--primary:#7b78ff;--primary-hover:#5956e9;--primary-light:#7b78ff2e;--surface:#17213c;--border:#263350;--border-focus:#7b78ff;--text-muted:#9aa7c0;--success:#36837e;--success-light:#36837e38;--success-text:#a7f3d0;--error:#fb7185;--error-light:#f43f5e2e;--error-text:#fecdd3;--warning:#fbbf24;--warning-light:#fff2c71f;--warning-text:#fde68a;--koeta-warm:#fff2c71f;--koeta-warm-dark:#fde68a;--glass-bg:#17213ce0;--glass-border:#ffffff14;--shadow:0 16px 40px -16px #0009, 0 2px 6px -2px #0006;--shadow-hover:0 22px 48px -16px #5956e94d, 0 4px 10px -4px #00000080}:root:not([data-theme=light]) .btn{color:#fff;background:linear-gradient(135deg,#7b78ff,#5956e9)}:root:not([data-theme=light]) .btn-warning{color:#451a03;background:linear-gradient(135deg,#fbbf24,#f59e0b)}:root:not([data-theme=light]) .btn-success{color:#fff;background:linear-gradient(135deg,#36837e,#296662)}:root:not([data-theme=light]) .badge-success{color:#a7f3d0;background:#36837e40}:root:not([data-theme=light]) .badge-warning{color:#fde68a;background:#f59e0b38}:root:not([data-theme=light]) .badge-error{color:#fecdd3;background:#f43f5e38}:root:not([data-theme=light]) .badge-neutral{color:#e2e8f0;background:#9aa7c02e}:root:not([data-theme=light]) .card-warm{color:#fde68a;background:#fff2c714;border-color:#fbbf2440}:root:not([data-theme=light]) .mobile-action-bar{background:var(--surface);border-color:var(--border);box-shadow:0 -8px 24px -4px #0006}}:root[data-theme=dark]{--background:#0e1322;--bg-gradient:radial-gradient(at 0% 0%, #5956e947 0px, transparent 60%), radial-gradient(at 100% 100%, #36837e29 0px, transparent 50%);--foreground:#f8fafc;--primary:#7b78ff;--primary-hover:#5956e9;--primary-light:#7b78ff2e;--surface:#17213c;--border:#263350;--border-focus:#7b78ff;--text-muted:#9aa7c0;--success:#36837e;--success-light:#36837e38;--success-text:#a7f3d0;--error:#fb7185;--error-light:#f43f5e2e;--error-text:#fecdd3;--warning:#fbbf24;--warning-light:#fff2c71f;--warning-text:#fde68a;--koeta-warm:#fff2c71f;--koeta-warm-dark:#fde68a;--glass-bg:#17213ce0;--glass-border:#ffffff14;--shadow:0 16px 40px -16px #0009, 0 2px 6px -2px #0006;--shadow-hover:0 22px 48px -16px #5956e94d, 0 4px 10px -4px #00000080}:root[data-theme=dark] .btn{color:#fff;background:linear-gradient(135deg,#7b78ff,#5956e9)}:root[data-theme=dark] .btn-warning{color:#451a03;background:linear-gradient(135deg,#fbbf24,#f59e0b)}:root[data-theme=dark] .btn-success{color:#fff;background:linear-gradient(135deg,#36837e,#296662)}:root[data-theme=dark] .badge-success{color:#a7f3d0;background:#36837e40}:root[data-theme=dark] .badge-warning{color:#fde68a;background:#f59e0b38}:root[data-theme=dark] .badge-error{color:#fecdd3;background:#f43f5e38}:root[data-theme=dark] .badge-neutral{color:#e2e8f0;background:#9aa7c02e}:root[data-theme=dark] .card-warm{color:#fde68a;background:#fff2c714;border-color:#fbbf2440}:root[data-theme=dark] .mobile-action-bar{background:var(--surface);border-color:var(--border);box-shadow:0 -8px 24px -4px #0006}:root[data-theme=light]{--background:var(--koeta-soft);--bg-gradient:radial-gradient(at 0% 0%, #5956e912 0px, transparent 55%), radial-gradient(at 100% 0%, #36837e0f 0px, transparent 50%);--foreground:var(--koeta-ink);--primary:var(--koeta-indigo);--primary-hover:var(--koeta-indigo-hover);--primary-light:#5956e914;--surface:#fff;--border:#e6e8f0;--border-focus:#5956e9;--success:var(--koeta-growth);--success-light:var(--koeta-growth-light);--success-text:var(--koeta-growth-text);--error:#e11d48;--error-light:#fff1f2;--error-text:#9f1239;--warning:#d97706;--warning-light:var(--koeta-warm);--warning-text:var(--koeta-warm-dark);--text-muted:#4e5a71;--glass-bg:#ffffffe0;--glass-border:#e6e8f0cc}:root[data-theme=light] .btn{background:linear-gradient(135deg, var(--primary), var(--primary-hover));color:#fff}:root[data-theme=light] .btn-warning{color:#451a03;background:linear-gradient(135deg,#f59e0b,#d97706)}:root[data-theme=light] .btn-success{background:linear-gradient(135deg, var(--success), #296662);color:#fff}:root[data-theme=light] .badge-success{background:var(--success-light);color:var(--success-text)}:root[data-theme=light] .badge-warning{background:var(--warning-light);color:var(--warning-text)}:root[data-theme=light] .badge-error{background:var(--error-light);color:var(--error-text)}:root[data-theme=light] .badge-neutral{color:#334155;background:#f1f5f9}:root[data-theme=light] .card-warm{color:var(--koeta-warm-dark);background:#fff9e6;border-color:#d9770638}.card-warm{color:var(--koeta-warm-dark);border-radius:var(--radius);box-shadow:var(--shadow-sm);background:#fff9e6;border:1px solid #d9770638;margin-bottom:1.25rem;padding:1.15rem 1.35rem}.quick-action-card{background:var(--surface);border:1.5px solid var(--border);color:var(--foreground);box-shadow:var(--shadow-sm);text-align:center;cursor:pointer;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:.5rem;min-height:68px;padding:.9rem .6rem;font-size:.88rem;font-weight:600;text-decoration:none;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex}.quick-action-card:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary);box-shadow:var(--shadow);transform:translateY(-2px)}.markdown-view{word-break:break-word;overflow-wrap:break-word;line-height:1.65}.markdown-view p{margin-bottom:.85rem}.markdown-view p:last-child{margin-bottom:0}.markdown-view pre{border-radius:10px;max-width:100%;overflow-x:auto}.katex,.katex *,.katex :before,.katex :after{box-sizing:content-box!important}.katex-error{color:inherit!important}.katex .mfrac{vertical-align:-.1em;padding:.15em .1em!important}.katex .mfrac .frac-line{border-bottom-width:.05em!important;min-height:1.2px!important}p:has(.katex){line-height:1.85!important}div:has(>.katex){line-height:1.85!important}li:has(.katex){line-height:1.85!important}.markdown-view p:has(.katex){line-height:1.85!important}.teacher-markdown-container p:has(.katex){line-height:1.85!important}p:has(.mfrac){padding-top:.2rem;padding-bottom:.2rem;line-height:2.3!important}div:has(>.mfrac){padding-top:.2rem;padding-bottom:.2rem;line-height:2.3!important}li:has(.mfrac){padding-top:.2rem;padding-bottom:.2rem;line-height:2.3!important}.markdown-view p:has(.mfrac){padding-top:.2rem;padding-bottom:.2rem;line-height:2.3!important}.teacher-markdown-container p:has(.mfrac){padding-top:.2rem;padding-bottom:.2rem;line-height:2.3!important}.katex{font-size:1.05em;line-height:1.2;display:inline-block}.katex-display{-webkit-overflow-scrolling:touch;overflow:auto hidden;margin:1.35rem 0!important;padding:.4rem 0!important}.teacher-markdown-container p{margin-bottom:.5rem}.teacher-markdown-container p:last-child{margin-bottom:0}.teacher-markdown-container ul,.teacher-markdown-container ol{margin-bottom:.5rem;margin-left:1.25rem}.teacher-markdown-container code{border-radius:4px;padding:.15rem .35rem;font-size:.85em}@keyframes dotPulse{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}}.dot-pulse{color:var(--primary);font-size:1.1rem;animation:1.2s ease-in-out infinite dotPulse;display:inline-block}@media (min-width:641px){.teacher-chat-backdrop{display:none!important}}.teacher-chat-backdrop{-webkit-backdrop-filter:blur(8px);z-index:85;background-color:#0f172ab8;position:fixed;inset:0}@keyframes slideUpDrawer{0%{transform:translateY(100%)}to{transform:translateY(0)}}.teacher-chat-panel{background:var(--surface);border:1px solid var(--border);z-index:90;border-radius:20px;flex-direction:column;width:min(560px,100vw - 2rem);max-width:calc(100vw - 2rem);height:min(720px,100vh - 3rem);max-height:calc(100vh - 3rem);transition:width .22s cubic-bezier(.16,1,.3,1),height .22s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;bottom:1.5rem;right:1.5rem;overflow:hidden;box-shadow:0 20px 50px -10px #0f172a38,0 0 0 1px #0000000d}.teacher-chat-panel.is-expanded{width:min(840px,100vw - 2rem);max-width:calc(100vw - 2rem);height:min(880px,100vh - 2rem);max-height:calc(100vh - 2rem)}.teacher-chat-messages{overscroll-behavior:contain;background:var(--background);flex-direction:column;flex:1;gap:1rem;min-height:0;padding:1.25rem;display:flex;overflow-y:auto}.teacher-chat-footer{background:var(--surface);border-top:1px solid var(--border);flex-shrink:0;padding:.85rem 1.25rem 1.1rem}@media (max-width:768px){.teacher-chat-panel{border-left:none!important;border-right:none!important;border-top:1px solid var(--border)!important;opacity:1!important;background:#fff!important;border-radius:20px 20px 0 0!important;width:100%!important;max-width:100%!important;height:85vh!important;max-height:85vh!important;animation:.24s cubic-bezier(.16,1,.3,1) forwards slideUpDrawer!important;inset:auto 0 0!important;box-shadow:0 -12px 40px #0f172a59!important}.teacher-chat-panel.is-expanded{width:100%!important;height:92vh!important}.teacher-chat-messages{background:#fff!important}.teacher-chat-footer{padding-bottom:calc(1rem + env(safe-area-inset-bottom,0px))!important;background:#fff!important}.teacher-chat-expand-btn{display:none!important}.btn-floating-teacher{bottom:calc(5.25rem + env(safe-area-inset-bottom,0px))!important;width:48px!important;height:48px!important;right:1rem!important}}.quick-prompt-pill{background:var(--surface);border:1.5px solid var(--border);color:var(--foreground);cursor:pointer;white-space:nowrap;border-radius:9999px;align-items:center;gap:.3rem;padding:.38rem .85rem;font-size:.82rem;font-weight:600;transition:all .15s;display:inline-flex}.quick-prompt-pill:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}.filter-tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:.35rem .7rem;font-size:.82rem;font-weight:600;transition:all .15s}.filter-tab:hover{color:var(--foreground)}.filter-tab.active{background:var(--surface);color:var(--primary);font-weight:700;box-shadow:0 1px 4px #00000014}