@import"https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary: #f6f1ec;--bg-secondary: #ffffff;--bg-card: #ffffff;--bg-card-hover: #fcfaf8;--bg-elevated: #ffffff;--bg-input: #ffffff;--accent-primary: #ff7a59;--accent-primary-hover: #e56b4d;--accent-secondary: #ff7a59;--accent-glow: rgba(255, 122, 89, .1);--accent-orange: #ff7a59;--accent-green: #00a4bd;--accent-purple: #6a78d1;--accent-teal: #00a4bd;--text-primary: #2d3e50;--text-secondary: #516f90;--text-muted: #7c98b6;--text-inverse: #ffffff;--border-subtle: rgba(45, 62, 80, .05);--border-default: #eaf0f6;--border-active: #ff7a59;--shadow-sm: 0 1px 3px rgba(45, 62, 80, .08);--shadow-md: 0 4px 12px rgba(45, 62, 80, .06);--shadow-lg: 0 8px 32px rgba(45, 62, 80, .12);--shadow-glow: 0 0 20px rgba(255, 122, 89, .15);--font-main: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-main);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{height:100%}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(148,163,184,.15);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:rgba(148,163,184,.25)}.app-layout{display:flex;height:100vh;width:100vw}.sidebar-container{flex-shrink:0;display:flex}.sidebar{width:260px;min-width:260px;background:#ffffff;border-right:1px solid var(--border-default);display:flex;flex-direction:column;padding:0}.sidebar-header{padding:24px 20px;border-bottom:1px solid var(--border-subtle)}.sidebar-brand{display:flex;align-items:center;gap:12px}.sidebar-logo{width:36px;height:36px;border-radius:var(--radius-md);background:var(--accent-primary);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 4px 10px #ff7a594d;flex-shrink:0}.sidebar-title{font-size:16px;font-weight:700;color:var(--text-primary);letter-spacing:-.02em}.sidebar-subtitle{font-size:11px;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.sidebar-section{padding:16px 12px;flex:1;overflow-y:auto}.sidebar-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:0 8px;margin-bottom:8px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-md);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition-normal);border:none;background:none;width:100%;text-align:left}.sidebar-item:hover{background:var(--bg-card);color:var(--text-primary)}.sidebar-item.active{background:#fdf1ed;color:var(--accent-primary);font-weight:600}.sidebar-item svg{width:18px;height:18px;flex-shrink:0}.sidebar-status{padding:16px;border-top:1px solid var(--border-subtle)}.status-badge{display:flex;align-items:center;gap:8px;padding:8px 12px;background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.15);border-radius:var(--radius-md);font-size:12px;color:var(--accent-green);font-weight:500}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-green);animation:pulse-dot 2s infinite}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.4}}.chat-panel{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-primary)}.chat-header-banner{display:none;flex-shrink:0}.chat-header-left{display:flex;align-items:center;gap:12px}.chat-header-title{font-size:15px;font-weight:600;color:var(--text-primary)}.chat-header-badge{font-size:11px;font-weight:600;padding:2px 10px;border-radius:var(--radius-full);background:var(--accent-glow);color:var(--accent-secondary);border:1px solid var(--border-active)}.chat-header-right{font-size:12px;color:var(--text-muted)}.chat-messages{flex:1;overflow-y:auto;padding:32px 28px;display:flex;flex-direction:column;gap:32px}.message{display:flex;gap:20px;max-width:860px;width:100%;animation:msg-in .4s cubic-bezier(.16,1,.3,1)}@keyframes msg-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.message.user{flex-direction:row-reverse;margin-left:auto}.message-avatar{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:var(--shadow-sm)}.message-avatar.bot{background:var(--accent-primary);box-shadow:0 4px 12px #ff7a5940;color:#fff}.message-avatar.user{background:var(--bg-card-hover);color:var(--text-primary);border:1px solid var(--border-default)}.message-body{display:flex;flex-direction:column;gap:12px;min-width:0;max-width:720px}.message-bubble{padding:20px 24px;border-radius:20px;font-size:14.5px;line-height:1.75;color:var(--text-primary);box-shadow:var(--shadow-md);letter-spacing:.01em;word-spacing:.02em}.message.assistant .message-bubble{background:#ffffff;border:1px solid var(--border-default);border-top-left-radius:4px;color:var(--text-primary)}.message-bubble h1,.message-bubble h2,.message-bubble h3{margin:20px 0 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ol>li{counter-increment:item;padding-left:28px;position:relative}.message-bubble ol>li:before{content:counter(item);position:absolute;left:0;top:1px;width:22px;height:22px;background:var(--accent-primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;line-height:1}.message-bubble li{margin-bottom:8px;line-height:1.65}.message-bubble li::marker{color:var(--accent-primary)}.message-bubble strong{font-weight:650;color:#1a2632}.message-bubble em{color:var(--text-secondary);font-style:italic}.message-bubble code{background:#f4f0ec;color:#d6471e;padding:2px 6px;border-radius:4px;font-size:13px;font-family:Fira Code,Consolas,monospace}.message-bubble pre{background:#1e1e2e;color:#cdd6f4;padding:16px;border-radius:var(--radius-md);overflow-x:auto;margin:14px 0;font-size:13px;line-height:1.5}.message-bubble pre code{background:none;color:inherit;padding:0;font-size:inherit}.message-bubble blockquote{border-left:3px solid var(--accent-primary);margin:14px 0;padding:10px 18px;background:#fdf6f3;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-secondary);font-style:italic}.message-bubble table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13px}.message-bubble th{background:#fdf1ed;color:var(--text-primary);font-weight:600;text-align:left;padding:10px 14px;border-bottom:2px solid var(--accent-primary)}.message-bubble td{padding:10px 14px;border-bottom:1px solid var(--border-default)}.message-bubble tr:last-child td{border-bottom:none}.message-bubble hr{border:none;border-top:1.5px solid var(--border-default);margin:20px 0}.message-bubble a:not(.video-link-card):not(.timestamp-badge){color:var(--accent-primary);text-decoration:none;font-weight:500;border-bottom:1px dashed var(--accent-primary);transition:all var(--transition-fast)}.message-bubble 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var(--transition-normal)}.source-chip:hover{background:var(--bg-card-hover);color:var(--text-primary);border-color:var(--border-active)}.source-chip.active{background:var(--accent-glow);color:var(--accent-secondary);border-color:var(--border-active)}.source-chip svg{width:14px;height:14px}.source-chip.video svg{color:var(--accent-purple)}.source-chip.transcript svg{color:var(--accent-teal)}.typing-indicator{display:flex;gap:14px;max-width:820px;animation:msg-in .3s ease}.typing-bubble{padding:14px 20px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);border-top-left-radius:4px;display:flex;align-items:center;gap:12px}.typing-dots{display:flex;gap:4px}.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-secondary);animation:typing-bounce 1.4s infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes 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0}.chat-input::placeholder{color:var(--text-muted)}.chat-send-btn{width:40px;height:40px;border-radius:var(--radius-md);background:var(--accent-primary);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-normal);flex-shrink:0}.chat-send-btn:hover:not(:disabled){background:var(--accent-primary-hover);transform:scale(1.05)}.chat-send-btn:active:not(:disabled){transform:scale(.95)}.chat-send-btn:disabled{opacity:.4;cursor:not-allowed}.chat-send-btn svg{width:18px;height:18px}.chat-input-hint{text-align:center;font-size:11px;color:var(--text-muted);margin-top:10px;letter-spacing:.02em}.ref-panel{width:380px;min-width:380px;background:#ffffff;border-left:1px solid var(--border-default);display:flex;flex-direction:column}.ref-header{height:64px;padding:0 20px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border-subtle);flex-shrink:0}.ref-header svg{width:18px;height:18px;color:var(--text-muted)}.ref-header-title{font-size:14px;font-weight:600;color:var(--text-primary)}.ref-body{flex:1;overflow-y:auto;padding:20px}.ref-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px}.ref-empty-icon{width:56px;height:56px;border-radius:var(--radius-lg);background:var(--bg-card);border:1px solid var(--border-default);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--text-muted)}.ref-empty-text{font-size:13px;color:var(--text-muted);line-height:1.6;max-width:220px}.ref-content{display:flex;flex-direction:column;gap:20px;animation:ref-in .25s ease}@keyframes ref-in{0%{opacity:0;transform:translate(12px)}to{opacity:1;transform:translate(0)}}.ref-video-preview{width:100%;aspect-ratio:16 / 9;border-radius:var(--radius-md);overflow:hidden;background:var(--bg-card);border:1px solid var(--border-default);position:relative;cursor:pointer}.ref-video-preview img{width:100%;height:100%;object-fit:cover;opacity:.7;transition:opacity var(--transition-normal)}.ref-video-preview:hover img{opacity:.9}.ref-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.15);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;color:#fff;transition:all var(--transition-normal)}.ref-video-preview:hover .ref-play-btn{background:rgba(255,255,255,.25);transform:translate(-50%,-50%) scale(1.08)}.ref-title{font-size:16px;font-weight:700;color:var(--text-primary);letter-spacing:-.01em}.ref-description{font-size:13px;color:var(--text-secondary);line-height:1.65}.ref-transcript-box{padding:14px 16px;background:var(--bg-card);border-left:3px solid var(--accent-primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.ref-transcript-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-secondary);margin-bottom:8px}.ref-transcript-text{font-size:13px;color:var(--text-secondary);font-style:italic;line-height:1.65}.ref-actions{display:flex;flex-direction:column;gap:8px}.ref-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border-radius:var(--radius-md);font-family:var(--font-main);font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition-normal);border:none}.ref-btn.primary{background:var(--accent-primary);color:#fff}.ref-btn.primary:hover{background:var(--accent-primary-hover)}.ref-btn.secondary{background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border-default)}.ref-btn.secondary:hover{background:var(--bg-card-hover);color:var(--text-primary)}.ref-btn svg{width:16px;height:16px}.topic-grid{display:flex;flex-wrap:wrap;gap:6px;padding:0 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32px;height:100%;text-align:center}.welcome-header{margin-bottom:40px}.welcome-icon{width:72px;height:72px;background:linear-gradient(135deg,#ff7a59,#ff957a);color:#fff;border-radius:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 8px 24px #ff7a594d}.welcome-header h2{font-size:26px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.welcome-header p{font-size:15px;color:var(--text-secondary);max-width:440px;line-height:1.6;margin:0 auto}.welcome-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:560px;width:100%}.welcome-card{display:flex;align-items:flex-start;gap:14px;padding:20px;background:white;border:1px solid var(--border-default);border-radius:var(--radius-md);cursor:pointer;text-align:left;transition:all var(--transition-normal);box-shadow:0 1px 3px #0000000a}.welcome-card:hover{border-color:var(--accent-primary);box-shadow:0 4px 16px 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var(--transition-fast);font-family:var(--font-main);display:flex;align-items:center;gap:6px}.filter-chip:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.filter-chip.active{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.filter-chip.active .chip-count{background:rgba(255,255,255,.25);color:#fff}.chip-count{font-size:10px;padding:1px 6px;background:var(--bg-primary);border-radius:var(--radius-full);font-weight:600}.resource-search-bar{display:flex;align-items:center;gap:8px;padding:6px 14px;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-full);min-width:200px;transition:border-color var(--transition-fast)}.resource-search-bar:focus-within{border-color:var(--accent-primary)}.resource-search-bar svg{color:var(--text-muted);flex-shrink:0}.resource-search-bar 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svg{color:var(--accent-primary)}.resource-card-title{font-size:15px;font-weight:600;color:var(--text-primary);line-height:1.3}.resource-card-snippet{font-size:13px;color:var(--text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.resource-card-tags{display:flex;gap:6px;flex-wrap:wrap}.resource-tag{font-size:10px;padding:2px 8px;background:#f1f5f9;color:#64748b;border-radius:var(--radius-full);font-weight:500}.resource-tag-more{background:var(--accent-glow);color:var(--accent-primary)}.resource-card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:8px;border-top:1px solid var(--border-subtle)}.resource-date{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--text-muted)}.resource-link{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--accent-primary);font-weight:600;text-decoration:none;transition:opacity var(--transition-fast)}.resource-link:hover{opacity:.8}.resource-indexed{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--text-muted);font-weight:500}.resource-empty{grid-column:1 / -1;text-align:center;padding:60px 20px;color:var(--text-muted)}.library-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 20px;text-align:center;color:var(--text-secondary);gap:12px}.loading-hint{font-size:12px;color:var(--text-muted)}.retry-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--accent-primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:13px;font-weight:600;cursor:pointer;font-family:var(--font-main)}.retry-btn:hover{background:var(--accent-primary-hover)}.animate-spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.search-view,.resource-library{padding:20px}.resource-grid{grid-template-columns:1fr}.resource-filters{flex-direction:column;align-items:stretch}.resource-search-bar{min-width:unset}.search-suggestions{justify-content:center}.results-meta{flex-direction:column;align-items:flex-start;gap:6px}}.timestamp-link{display:inline-flex;align-items:center;gap:3px;padding:2px 8px;background:linear-gradient(135deg,rgba(255,88,65,.12),rgba(255,122,89,.08));border:1px solid rgba(255,88,65,.25);border-radius:12px;color:var(--accent-primary, #ff5841);font-size:.82em;font-weight:600;text-decoration:none;transition:all .2s ease;cursor:pointer;white-space:nowrap}.timestamp-link:hover{background:linear-gradient(135deg,rgba(255,88,65,.22),rgba(255,122,89,.15));border-color:#ff584180;transform:translateY(-1px);box-shadow:0 2px 8px #ff584133}.youtube-card-link{display:block;text-decoration:none;margin:12px 0;max-width:360px}.youtube-card{display:flex;align-items:center;gap:12px;padding:8px;background:var(--bg-card, #ffffff);border:1px solid var(--border-light, #e5e0da);border-radius:12px;transition:all .2s ease;position:relative;overflow:hidden}.youtube-card:hover{border-color:var(--accent-primary, #ff5841);box-shadow:0 4px 16px #ff584126;transform:translateY(-1px)}.youtube-card-thumb{width:120px;height:68px;border-radius:8px;object-fit:cover;flex-shrink:0}.youtube-card-play{position:absolute;left:50px;top:50%;transform:translate(-50%,-50%);width:32px;height:32px;background:rgba(255,0,0,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;opacity:.9;transition:opacity .2s}.youtube-card:hover .youtube-card-play{opacity:1}.youtube-card-label{font-size:.85em;font-weight:500;color:var(--text-primary, #2d2926);line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.source-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:20px;border:1px solid var(--border-light, #e5e0da);background:var(--bg-card, #ffffff);font-size:.82em;font-weight:500;color:var(--text-secondary, #6b6560);cursor:pointer;transition:all .2s ease;white-space:nowrap}.source-chip:hover{border-color:var(--accent-primary, #ff5841);color:var(--accent-primary, #ff5841);transform:translateY(-1px);box-shadow:0 2px 8px #00000014}.source-chip.video{border-color:#f003;background:rgba(255,0,0,.04)}.source-chip.video:hover{border-color:#ff000080;background:rgba(255,0,0,.08);color:#c00}.source-chip.has-link{border-color:#ff58414d}.source-chip-title{max-width:200px;overflow:hidden;text-overflow:ellipsis}.source-chip-duration{display:inline-flex;align-items:center;gap:3px;padding:1px 6px;background:rgba(255,88,65,.1);border-radius:8px;font-size:.85em;color:var(--accent-primary, #ff5841);font-weight:600}.source-chip-external{opacity:.4;margin-left:2px}.source-chip:hover .source-chip-external{opacity:.8}.message-sources{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}@media (max-width: 768px){.youtube-card-link{max-width:100%}.youtube-card-thumb{width:80px;height:45px}.youtube-card-play{left:32px;width:24px;height:24px;font-size:10px}.source-chip-title{max-width:140px}}