.login[data-v-6635fc20]{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:100dvh;padding:24px;display:flex}.logo[data-v-6635fc20]{border-radius:18px}form[data-v-6635fc20]{width:100%;max-width:320px;margin-top:16px}.error[data-v-6635fc20]{color:var(--danger);margin:10px 2px 0;font-size:14px}.tabbar[data-v-e1a40490]{z-index:20;padding:6px 8px calc(env(safe-area-inset-bottom) + 4px);background:color-mix(in srgb, var(--bg) 85%, transparent);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--line);justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.tabbar.dark[data-v-e1a40490]{--muted:#9a9e9b;--accent:#9fd6c2;background:#0a0a0abf;border-top-color:#ffffff14}.tab[data-v-e1a40490]{color:var(--muted);flex-direction:column;flex:1;align-items:center;gap:2px;padding:2px 0;font-size:11px;font-weight:500;display:flex}.tab.active[data-v-e1a40490]{color:var(--accent)}.tab-icon[data-v-e1a40490]{place-items:center;height:28px;display:grid;position:relative}.tab-badge[data-v-e1a40490]{background:var(--warn);color:#fff;border-radius:9px;place-items:center;min-width:18px;height:18px;padding:0 5px;font-size:11px;font-weight:700;display:grid;position:absolute;top:-3px;right:-12px}.spin-badge[data-v-e1a40490]{background:var(--accent);width:12px;min-width:12px;height:12px;animation:1.2s ease-in-out infinite pulse-e1a40490;top:0;right:-6px}@keyframes pulse-e1a40490{50%{opacity:.35}}.toast[data-v-e1a40490]{left:16px;right:16px;bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);z-index:60;color:#fff;text-align:center;background:#222;border-radius:12px;max-width:480px;margin:0 auto;padding:12px 16px;font-size:15px;position:fixed}.fade-enter-active[data-v-e1a40490],.fade-leave-active[data-v-e1a40490]{transition:opacity .2s}.fade-enter-from[data-v-e1a40490],.fade-leave-to[data-v-e1a40490]{opacity:0}:root{--bg:#f4f4f1;--surface:#fff;--surface-2:#ecebe6;--text:#1d1f1e;--muted:#6d716e;--line:#dcdbd5;--accent:#2f5d50;--accent-soft:#dfeae5;--accent-text:#fff;--warn:#c2621d;--warn-soft:#fbeadc;--danger:#b3261e;--paper-placeholder:#e9e8e2;--seg-active:#fff;--radius:14px;--tabbar-h:58px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.4}@media (prefers-color-scheme:dark){:root{--bg:#161716;--surface:#202221;--surface-2:#2a2c2b;--text:#ecedea;--muted:#9a9e9b;--line:#353836;--accent:#7fb8a5;--accent-soft:#24362f;--accent-text:#0f1a16;--warn:#f0a266;--warn-soft:#3a2a1c;--danger:#f2877f;--paper-placeholder:#2b2d2c;--seg-active:#454947;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);overscroll-behavior-y:none;margin:0}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}h1{letter-spacing:-.02em;margin:0;font-size:30px;line-height:1.15}.view{padding:calc(env(safe-area-inset-top) + 12px) 16px calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 24px);max-width:720px;margin:0 auto}.view-head{justify-content:space-between;align-items:flex-end;gap:12px;margin:8px 0 18px;display:flex}.topbar{align-items:center;gap:6px;min-height:40px;margin:0 -8px 4px;display:flex}.topbar .spacer{flex:1}.back-link{color:var(--accent);background:0 0;border:0;align-items:center;gap:2px;padding:8px;font-size:16px;display:inline-flex}.subtitle{color:var(--muted);margin-top:4px;font-size:15px}.section-title{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:26px 4px 8px;font-size:13px;font-weight:600}.card{background:var(--surface);border-radius:var(--radius);padding:14px 16px}.list{background:var(--surface);border-radius:var(--radius);overflow:hidden}.list-row{text-align:left;background:0 0;border:0;align-items:center;gap:12px;width:100%;min-height:52px;padding:13px 16px;display:flex;position:relative}.list-row+.list-row:before{content:"";border-top:1px solid var(--line);position:absolute;top:0;left:16px;right:0}.list-row:active{background:var(--surface-2)}.row-main{flex:1;min-width:0}.row-title{text-overflow:ellipsis;font-weight:500;overflow:hidden}.row-sub{color:var(--muted);margin-top:1px;font-size:14px}.chev{color:var(--muted);flex:none}.dot{border-radius:50%;flex:none;width:10px;height:10px;display:inline-block}.badge{background:var(--surface-2);min-width:24px;height:22px;color:var(--muted);border-radius:11px;flex:none;justify-content:center;align-items:center;padding:0 7px;font-size:12px;font-weight:600;display:inline-flex}.badge.lecture{background:var(--accent-soft);color:var(--accent)}.badge.exercise{background:var(--warn-soft);color:var(--warn)}.btn{background:var(--surface-2);border:0;border-radius:12px;justify-content:center;align-items:center;gap:6px;min-height:46px;padding:12px 18px;font-weight:600;display:inline-flex}.btn.primary{background:var(--accent);color:var(--accent-text)}.btn.danger{color:var(--danger)}.btn.small{border-radius:10px;min-height:34px;padding:6px 12px;font-size:14px}.btn.block{width:100%;margin-top:18px}.btn:disabled{opacity:.5}.icon-btn{width:40px;height:40px;color:var(--accent);background:0 0;border:0;border-radius:20px;flex:none;place-items:center;display:inline-grid}.icon-btn:active{background:var(--surface-2)}.input,textarea.input,select.input{border:1px solid var(--line);background:var(--surface);border-radius:10px;width:100%;min-height:46px;padding:11px 12px;display:block}textarea.input{resize:vertical;min-height:90px}.field-label{color:var(--muted);margin:16px 2px 6px;font-size:13px;font-weight:600;display:block}.segmented{background:var(--surface-2);border-radius:10px;padding:3px;display:flex}.segmented button{background:0 0;border:0;border-radius:8px;flex:1;padding:8px;font-size:14px;font-weight:500}.segmented button.active{background:var(--seg-active);box-shadow:0 1px 3px #0000001f}.choice-list{flex-wrap:wrap;gap:8px;display:flex}.choice{border:1px solid var(--line);background:var(--surface);border-radius:20px;align-items:center;gap:8px;padding:8px 14px;font-size:14px;display:inline-flex}.choice.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:600}.empty{text-align:center;color:var(--muted);padding:48px 24px}.empty h2{color:var(--text);margin:12px 0 6px;font-size:18px}.banner{background:var(--warn-soft);color:var(--warn);border-radius:var(--radius);text-align:left;border:0;align-items:center;gap:10px;width:100%;margin-bottom:14px;padding:12px 14px;font-weight:500;display:flex}.markdown :first-child{margin-top:0}.markdown :last-child{margin-bottom:0}.markdown p,.markdown ul,.markdown ol{margin:.5em 0}.markdown ul,.markdown ol{padding-left:1.3em}.markdown .katex-display{padding:2px 0;overflow:auto hidden}.spinner{border:2px solid;border-right-color:#0000;border-radius:50%;flex:none;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}