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var(--border)}.indexing-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-bottom:6px;gap:8px}.indexing-name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.indexing-phase{color:var(--primary);font-variant-numeric:tabular-nums;font-size:12px;flex-shrink:0}.indexing-bar{height:6px;background:var(--muted-2);border-radius:3px;overflow:hidden}.indexing-fill{height:100%;background:var(--primary);transition:width .3s ease}.reindex{padding:12px 16px;background:var(--muted);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}.reindex p{margin:0;font-size:14px;opacity:.8}.reindex button{height:36px;padding:0 14px;border-radius:10px;background:var(--primary);color:var(--user-fg);font-weight:600;font-size:14px;flex-shrink:0}.chat-blocked{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:32px;gap:8px}.chat-blocked p{margin:0}.chat{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;-webkit-overflow-scrolling:touch}.empty-chat{margin:auto;text-align:center;opacity:.5;font-size:15px;padding:24px}.msg{max-width:85%;padding:10px 14px;border-radius:16px;white-space:pre-wrap;word-wrap:break-word;line-height:1.5}.msg-user{align-self:flex-end;background:var(--user-bg);color:var(--user-fg);border-bottom-right-radius:4px}.msg-assistant{align-self:flex-start;background:var(--assistant-bg);color:var(--assistant-fg);border-bottom-left-radius:4px}.msg-error{color:var(--danger)}.citations{margin-top:8px;font-size:13px;opacity:.85}.citations summary{cursor:pointer;color:var(--primary);font-weight:600;list-style:none}.citations summary::-webkit-details-marker{display:none}.citations summary:before{content:"📑 "}.citations ul{margin:6px 0 0;padding-left:16px}.citations li{margin-bottom:6px;font-style:italic;opacity:.9}.msg-study-btn{margin-top:10px;padding:8px 14px;background:var(--bg);border:1px solid var(--border);border-radius:999px;font-size:13px;font-weight:600;color:var(--primary);cursor:pointer;display:inline-flex;align-items:center;gap:4px}.msg-study-btn:active{background:var(--muted)}.generate-bar{display:flex;gap:8px;padding:10px 12px 4px;background:var(--bg)}.generate-btn{flex:1;height:44px;border-radius:14px;border:1px solid var(--border);background:var(--muted);color:var(--fg);font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:6px;transition:all .15s}.generate-btn:active:not(:disabled){transform:scale(.98)}.generate-mindmap{border-color:var(--primary);color:var(--primary)}.generate-mindmap:hover:not(:disabled),.generate-mindmap:active:not(:disabled){background:#7c5cff1a}.generate-flashcards{border-color:var(--accent);color:var(--primary-strong, var(--primary))}.generate-flashcards:hover:not(:disabled),.generate-flashcards:active:not(:disabled){background:#a78bfa29}.generate-btn:disabled{opacity:.4}.msg-study-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.composer{display:flex;gap:8px;padding:8px 12px max(env(safe-area-inset-bottom),12px) 12px;border-top:1px solid var(--border);background:var(--bg)}.composer textarea{flex:1;resize:none;border-radius:16px;border:1px solid var(--border);background:var(--muted);padding:10px 14px;font-size:16px;line-height:1.4;max-height:140px}.composer textarea:focus{outline:none;border-color:var(--primary)}.composer button{align-self:flex-end;height:40px;padding:0 16px;border-radius:14px;background:var(--primary);color:var(--user-fg);font-weight:600}.composer button:disabled{opacity:.4}.settings{height:100dvh;max-width:480px;margin:0 auto;padding:max(env(safe-area-inset-top),24px) 20px env(safe-area-inset-bottom) 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18px;border-radius:10px;background:transparent;border:1px solid var(--border);color:var(--danger);font-size:14px;font-weight:500}.signout-btn:active{background:#b346461a}.login{height:100dvh;display:grid;place-items:center;padding:24px;background:var(--bg)}.login-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--border);border-radius:24px;padding:32px 28px;display:flex;flex-direction:column;gap:14px;text-align:center;box-shadow:0 10px 40px -10px #1c183014}@media (prefers-color-scheme: dark){.login-card{background:var(--muted)}}.login-card h2{font-weight:800;letter-spacing:-1px}.login-logo{position:relative;width:88px;height:88px;margin:0 auto 8px;background:linear-gradient(135deg,#7c5cff,#a78bfa);border-radius:22px;display:grid;place-items:center;box-shadow:0 8px 24px -8px #7c5cff80}.login-logo-mark{font-family:Manrope,system-ui,sans-serif;font-weight:800;font-size:44px;letter-spacing:-2px;color:#fff;line-height:1}.login-logo-dot{position:absolute;top:12px;right:12px;width:12px;height:12px;border-radius:50%;background:#fde68a;box-shadow:0 0 0 3px #fff6}.login-card h2{margin:0;font-size:28px;color:var(--primary);letter-spacing:-.5px}.login-sub{margin:0 0 12px;color:var(--fg);opacity:.7;font-size:14px}.login-card form{display:flex;flex-direction:column;gap:12px;text-align:left}.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600}.login-card input{height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--border);background:var(--bg);font-size:16px;color:var(--fg)}.login-card input:focus{outline:none;border-color:var(--primary)}.login-submit{height:44px;border-radius:12px;background:var(--primary);color:var(--user-fg);border:none;font-size:15px;font-weight:600;margin-top:4px}.login-submit:disabled{opacity:.5}.login-error{margin:0;font-size:13px;color:var(--danger)}.login-hint{margin:8px 0 0;font-size:12px;opacity:.6;line-height:1.5}.login-link{background:none;border:none;color:var(--primary);font-size:14px;cursor:pointer;align-self:center;margin-top:8px}.sync-indicator{font-size:18px;color:var(--primary);opacity:.6;animation:spin 1.5s linear infinite;margin-right:4px}@keyframes spin{to{transform:rotate(360deg)}}.studies{display:flex;flex-direction:column;height:100dvh;max-width:720px;margin:0 auto;width:100%}.studies-header{display:flex;align-items:center;gap:12px;padding:max(env(safe-area-inset-top),12px) 16px 12px 16px;border-bottom:1px solid var(--border)}.studies-header h2{margin:0;font-size:18px;font-weight:700;color:var(--primary)}.studies-header p{margin:0;font-size:12px;color:var(--fg);opacity:.6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.studies-list{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px}.study-card{display:flex;gap:12px;padding:12px;background:var(--muted);border:1px solid var(--border);border-radius:14px;align-items:flex-start}.study-flashcards{border-left:3px solid var(--primary)}.study-mindmap{border-left:3px solid var(--accent)}.study-icon{font-size:28px;line-height:1;flex-shrink:0}.study-body{flex:1;min-width:0}.study-body h3{margin:0 0 4px;font-size:15px;font-weight:600;color:var(--fg)}.study-meta{margin:0 0 4px;font-size:12px;color:var(--fg);opacity:.6}.study-topic{margin:0;font-size:12px;font-style:italic;color:var(--fg);opacity:.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.study-actions{display:flex;flex-direction:column;gap:4px;flex-shrink:0}.study-actions button{height:32px;min-width:32px;padding:0 10px;border-radius:8px;background:var(--bg);border:1px solid var(--border);font-size:14px;color:var(--fg)}.study-actions .study-btn-primary{background:var(--primary);color:var(--user-fg);border-color:var(--primary);font-weight:600;font-size:13px}.study-actions .study-btn-danger:active{background:#b3464626}.study-view{display:flex;flex-direction:column;height:100dvh;width:100%;background:var(--bg)}.study-view-header{display:flex;align-items:center;gap:8px;padding:max(env(safe-area-inset-top),8px) 12px 8px 12px;border-bottom:1px solid var(--border);background:var(--bg);flex-shrink:0}.study-view-title{flex:1;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.study-view-icon{font-size:18px;flex-shrink:0}.study-view-iframe{flex:1;width:100%;border:none;background:#fff}:root{color-scheme:light dark;--bg: #faf9ff;--fg: #1c1830;--primary: #7c5cff;--primary-strong: #5b3df0;--accent: #a78bfa;--gold: #fde68a;--muted: #f1eefb;--muted-2: #e6e1f5;--border: #d9d2ec;--user-bg: #7c5cff;--user-fg: #ffffff;--assistant-bg: #f1eefb;--assistant-fg: #1c1830;--danger: #e54c63}@media (prefers-color-scheme: dark){:root{--bg: #14111f;--fg: #ece8ff;--primary: #a78bfa;--primary-strong: #c4b5fd;--accent: #c4b5fd;--gold: #fbbf24;--muted: #211b35;--muted-2: #2e2647;--border: #2e2647;--user-bg: #7c5cff;--user-fg: #ffffff;--assistant-bg: #211b35;--assistant-fg: #ece8ff;--danger: #f87171}}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100dvh;overflow:hidden}body{background:var(--bg);color:var(--fg);font-family:Manrope,Inter,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;font-size:16px;line-height:1.5;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}button{font:inherit;cursor:pointer;border:none;background:transparent;color:inherit}input,textarea,select{font:inherit;color:inherit}a{color:var(--primary)}