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var(--space-6);border-bottom:1px solid var(--border-light);background:var(--bg-white);justify-content:space-between;align-items:center;display:flex}.chat-sidebar-header h2{font-size:1.25rem;font-weight:700;font-family:var(--font-display);color:var(--navy)}.threads-count{background:var(--primary-light);color:var(--primary);border-radius:var(--radius-full);padding:4px 10px;font-size:.75rem;font-weight:600}.threads-list-flow{padding:var(--space-3);gap:var(--space-2);flex-direction:column;flex:1;display:flex;overflow-y:auto}.no-threads-placeholder{color:var(--text-secondary);text-align:center;padding:var(--space-8) var(--space-4);font-size:.875rem;line-height:1.5}.thread-item-card{align-items:flex-start;gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);background:var(--bg-white);-webkit-user-select:none;user-select:none;border:1px solid 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p{max-width:460px;font-size:.9375rem;line-height:1.6}.active-chat-header{padding:var(--space-4) var(--space-6);background:var(--bg-white);border-bottom:1px solid var(--border-light);z-index:10;box-shadow:var(--shadow-sm);flex-shrink:0;justify-content:space-between;align-items:center;display:flex}.thread-avatar-large{border-radius:var(--radius-full);object-fit:cover;border:2px solid var(--border-light);width:48px;height:48px}.active-chat-header h3{color:var(--navy);font-size:1.0625rem;font-weight:700}.chat-context-anchor{align-items:center;gap:var(--space-4);padding:var(--space-4) var(--space-6);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);z-index:5;background:#ffffffd9;flex-shrink:0;display:flex}.context-card-img{border-radius:var(--radius-sm);object-fit:cover;border:1px solid var(--border-light);width:60px;height:60px}.context-card-details{justify-content:space-between;align-items:center;gap:var(--space-4);flex:1;display:flex}.context-card-details h4{color:var(--navy);font-size:.9375rem;font-weight:700}.context-price-tag{font-family:var(--font-display);color:var(--accent);font-size:1.0625rem;font-weight:800}.badge-stay-type{color:#1a73e8;border-radius:var(--radius-full);background:#e8f0fe;padding:2px 8px;font-size:.6875rem;font-weight:700;display:inline-block}.badge-ride-type{color:#0f172a;background:var(--gray-200);border-radius:var(--radius-full);padding:2px 8px;font-size:.6875rem;font-weight:700;display:inline-block}.gold-premium-badge{color:#92400e;border-radius:var(--radius-full);background:#fef3c7;padding:2px 8px;font-size:.6875rem;font-weight:700;display:inline-block}.btn-xs{padding:6px 12px;font-size:.75rem}.chat-messages-timeline{padding:var(--space-6);gap:var(--space-4);background:#fafbfd;flex-direction:column;flex:1;display:flex;overflow-y:auto}.chat-bubble-row{width:100%;display:flex}.chat-bubble-row.me{justify-content:flex-end}.chat-bubble-row.partner{justify-content:flex-start}.chat-bubble{max-width:65%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);flex-direction:column;gap:4px;display:flex;position:relative}@media (max-width:576px){.chat-bubble{max-width:85%}}.chat-bubble-row.me .chat-bubble{background:var(--navy);color:#fff;border-bottom-right-radius:2px}.chat-bubble-row.partner .chat-bubble{background:var(--bg-white);color:var(--text-primary);border:1px solid var(--border-light);border-bottom-left-radius:2px}.bubble-text{color:inherit;word-break:break-word;font-size:.9375rem;line-height:1.5}.bubble-time{align-self:flex-end;font-size:.6875rem}.chat-bubble-row.me .bubble-time{color:#fff9}.chat-bubble-row.partner .bubble-time{color:var(--gray-400)}.chat-input-footer{align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-6);background:var(--bg-white);border-top:1px solid var(--border-light);flex-shrink:0;display:flex;box-shadow:0 -4px 16px #00000005}.chat-text-input{border:2px solid var(--border-light);border-radius:var(--radius-full);color:var(--navy);background:var(--bg-base);transition:all var(--transition-fast);outline:none;flex:1;padding:12px 18px;font-size:.9375rem}.chat-text-input:focus{border-color:var(--primary);background:var(--bg-white);box-shadow:0 0 0 4px #0a254014}.chat-send-btn{border-radius:var(--radius-full);background:var(--accent);color:#fff;box-shadow:var(--shadow-blue);border:none;padding:12px 24px;font-weight:700}.chat-send-btn:hover{background:#e06b00;transform:translateY(-1px)}.animate-fade-in{animation:fadeIn var(--transition-base) forwards}