@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";
:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-tertiary:#1a1a28;--bg-elevated:#1e1e2e;--bg-glass:#1a1a28bf;--text-primary:#e4e4e7;--text-secondary:#a1a1aa;--text-tertiary:#71717a;--text-muted:#52525b;--accent-start:#2a6df4;--accent-end:#b642f0;--accent-gradient:linear-gradient(135deg, var(--accent-start), var(--accent-end));--border-color:#ffffff0f;--border-hover:#ffffff1f;--success:#22c55e;--warning:#f59e0b;--error:#ef4444;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow:0 0 20px #6366f126;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.app-layout{flex-direction:column;height:100vh;display:flex}.nav-bar{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:100;justify-content:space-between;align-items:center;height:60px;padding:0 24px;display:flex;position:sticky;top:0}.nav-brand{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;align-items:center;gap:10px;font-size:18px;font-weight:700;text-decoration:none;display:flex}.nav-brand-icon{background:var(--accent-gradient);border-radius:var(--radius-sm);-webkit-text-fill-color:white;justify-content:center;align-items:center;width:28px;height:28px;font-size:14px;display:flex}.nav-links{gap:4px;display:flex}.nav-link{border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);padding:8px 16px;font-size:14px;font-weight:500;text-decoration:none}.nav-link:hover{color:var(--text-primary);background:var(--bg-tertiary)}.nav-link.active{color:var(--text-primary);background:var(--bg-elevated)}.main-content{flex:1;display:flex;overflow:hidden}.glass-panel{background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-lg)}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:all var(--transition-fast);padding:16px}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-glow)}.thread-list-container{flex-direction:column;flex:1;display:flex;overflow:hidden}.search-bar{border-bottom:1px solid var(--border-color);padding:16px 24px}.search-input-wrapper{max-width:600px;position:relative}.search-input{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:all var(--transition-fast);outline:none;padding:10px 16px 10px 40px;font-family:inherit;font-size:14px}.search-input:focus{border-color:var(--accent-start);box-shadow:0 0 0 3px #6366f11a}.search-input::placeholder{color:var(--text-muted)}.search-icon{color:var(--text-muted);font-size:16px;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.thread-list{flex:1;padding:8px;overflow-y:auto}.thread-row{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:inherit;border:1px solid #0000;align-items:center;gap:16px;padding:12px 16px;text-decoration:none;display:flex}.thread-row:hover{background:var(--bg-tertiary);border-color:var(--border-hover)}.thread-info{flex:1;min-width:0}.thread-subject{white-space:nowrap;text-overflow:ellipsis;margin-bottom:2px;font-size:14px;font-weight:500;overflow:hidden}.thread-meta{color:var(--text-tertiary);gap:12px;font-size:12px;display:flex}.thread-count{background:var(--bg-elevated);border-radius:var(--radius-sm);min-width:28px;height:28px;color:var(--text-secondary);justify-content:center;align-items:center;font-size:12px;font-weight:600;display:flex}.thread-date{white-space:nowrap;color:var(--text-tertiary);font-size:12px}.thread-detail{flex-direction:column;flex:1;display:flex;overflow:hidden}.thread-header{border-bottom:1px solid var(--border-color);padding:20px 24px}.thread-title{margin-bottom:8px;font-size:20px;font-weight:600}.thread-participants{color:var(--text-secondary);font-size:13px}.message-list{flex-direction:column;flex:1;gap:12px;padding:16px 24px;display:flex;overflow-y:auto}.message-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:all var(--transition-fast);flex-shrink:0;overflow:hidden}.message-card:hover{border-color:var(--border-hover)}.message-header{border-bottom:1px solid var(--border-color);cursor:pointer;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.message-sender{font-size:14px;font-weight:500}.message-date-small{color:var(--text-tertiary);font-size:12px}.message-body{color:var(--text-secondary);white-space:pre-wrap;word-break:break-word;padding:16px;font-size:14px;line-height:1.7}.quoted-text{border-left:3px solid var(--border-color);color:var(--text-muted);margin:8px 0;padding-left:12px}.quoted-toggle{border:1px solid var(--border-color);color:var(--text-tertiary);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);background:0 0;margin:4px 0;padding:4px 10px;font-size:12px}.quoted-toggle:hover{background:var(--bg-tertiary);color:var(--text-secondary)}.search-page{flex-direction:column;flex:1;padding:24px;display:flex;overflow:hidden}.search-controls{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.search-type-btn{border-radius:var(--radius-md);border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;padding:6px 14px;font-family:inherit;font-size:13px;font-weight:500}.search-type-btn.active{background:var(--accent-gradient);color:#fff;border-color:#0000}.search-type-btn:hover:not(.active){background:var(--bg-tertiary);color:var(--text-primary)}.search-results{flex-direction:column;flex:1;gap:8px;display:flex;overflow-y:auto}.search-result-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:inherit;padding:14px 16px;text-decoration:none}.search-result-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-glow)}.result-subject{margin-bottom:4px;font-size:14px;font-weight:500}.result-snippet{color:var(--text-tertiary);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:13px;display:-webkit-box;overflow:hidden}.result-snippet mark{color:var(--text-primary);background:#6366f14d;border-radius:2px;padding:0 2px}.ai-chat-toggle{background:var(--accent-gradient);color:#fff;cursor:pointer;width:52px;height:52px;box-shadow:var(--shadow-lg);transition:all var(--transition-base);z-index:200;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:22px;display:flex;position:fixed;bottom:24px;right:24px}.ai-chat-toggle:hover{box-shadow:var(--shadow-glow), var(--shadow-lg);transform:scale(1.1)}.ai-chat-panel{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:580px;max-height:800px;box-shadow:var(--shadow-lg);z-index:200;animation:slideUp var(--transition-base) ease-out;flex-direction:column;display:flex;position:fixed;bottom:90px;right:24px;overflow:hidden}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.ai-chat-header{border-bottom:1px solid var(--border-color);background:var(--bg-elevated);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.ai-chat-title{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:14px;font-weight:600}.ai-chat-close{color:var(--text-tertiary);cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition-fast);background:0 0;border:none;padding:4px;font-size:18px}.ai-chat-close:hover{color:var(--text-primary);background:var(--bg-tertiary)}.ai-chat-messages{flex-direction:column;flex:1;gap:12px;min-height:200px;max-height:calc(100vh - 250px);padding:16px;display:flex;overflow-y:auto}.ai-message{border-radius:var(--radius-md);max-width:90%;padding:12px 16px;font-size:14px;line-height:1.6}.ai-message.user{background:var(--accent-gradient);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.ai-message.assistant{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-color);border-bottom-left-radius:4px;align-self:flex-start}.ai-message.assistant p{margin-bottom:8px}.ai-message.assistant p:last-child{margin-bottom:0}.ai-message.assistant ul,.ai-message.assistant ol{margin-bottom:8px;margin-left:18px}.ai-message.assistant li{margin-bottom:4px}.ai-message.assistant strong{color:#fff;font-weight:600}.ai-message.assistant h1,.ai-message.assistant h2,.ai-message.assistant h3{color:#fff;margin:12px 0 6px;font-weight:600}.ai-message.assistant code{background:var(--bg-tertiary);border-radius:4px;padding:2px 4px;font-family:monospace}.ai-message.status{color:var(--text-tertiary);align-self:center;font-size:12px;font-style:italic}.ai-sources{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.ai-source-link{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--accent-start);cursor:pointer;transition:all var(--transition-fast);padding:3px 8px;font-size:11px;text-decoration:none}.ai-source-link:hover{border-color:var(--accent-start)}.ai-chat-input{border-top:1px solid var(--border-color);gap:8px;padding:12px;display:flex}.ai-chat-input input{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-fast);outline:none;flex:1;padding:8px 12px;font-family:inherit;font-size:13px}.ai-chat-input input:focus{border-color:var(--accent-start)}.ai-chat-input button{background:var(--accent-gradient);color:#fff;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:none;padding:8px 16px;font-family:inherit;font-size:13px;font-weight:500}.ai-chat-input button:hover{opacity:.9}.ai-chat-input button:disabled{opacity:.5;cursor:not-allowed}.stats-bar{border-bottom:1px solid var(--border-color);color:var(--text-tertiary);gap:16px;padding:12px 24px;font-size:12px;display:flex}.stat-item{align-items:center;gap:6px;display:flex}.stat-value{color:var(--text-secondary);font-weight:600}.loading-spinner{color:var(--text-tertiary);justify-content:center;align-items:center;padding:40px;display:flex}.spinner{border:2px solid var(--border-color);border-top-color:var(--accent-start);border-radius:50%;width:24px;height:24px;margin-right:10px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:60px 24px;display:flex}.empty-state-icon{opacity:.5;margin-bottom:16px;font-size:48px}.empty-state-text{max-width:320px;font-size:15px}.back-link{color:var(--text-secondary);transition:all var(--transition-fast);align-items:center;gap:6px;margin-bottom:12px;font-size:13px;text-decoration:none;display:inline-flex}.back-link:hover{color:var(--text-primary)}@media (max-width:768px){.ai-chat-panel{width:auto;max-height:70vh;bottom:80px;left:8px;right:8px}.nav-bar{padding:0 12px}.search-bar{padding:12px}}