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span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.header-nav{min-width:180px;right:-10px}.header-nav.expanded{max-height:250px;padding:10px}.header-nav .header-action-btn{padding:10px 14px;font-size:11px}.theme-toggle-row{padding:0 14px}}.header-bookings-btn,.header-trips-btn{position:relative}.notification-badge{position:absolute;top:-4px;right:-4px;background:var(--text-primary);color:var(--bg-primary);font-size:10px;font-weight:var(--font-bold);min-width:18px;height:18px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;padding:0 4px;box-shadow:none}[data-theme=light] .notification-badge{background:var(--bg-primary);color:#000;border:1px solid #d0d0d0}.btn{padding:var(--space-3) var(--space-5);border-radius:var(--radius-sm);font-size:var(--text-base);font-weight:var(--font-bold);cursor:pointer;transition:var(--transition-base);border:none;letter-spacing:.2px;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);text-transform:none;min-height:40px}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:#000;color:#fff;box-shadow:none;font-weight:var(--font-bold);border:1px solid #000000;letter-spacing:.2px;text-transform:none;white-space:nowrap;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.btn-primary:hover:not(:disabled){background:#1a1a1a;border-color:#1a1a1a;transform:none;box-shadow:none}.btn-primary:active:not(:disabled){background:#1a1a1a;border-color:#1a1a1a;transform:none;box-shadow:none}.btn-primary:disabled{opacity:.55;cursor:not-allowed;background:#000;border-color:#000}[data-theme=light] .btn-primary{background:#000;color:#fff;border:1px solid #000000}[data-theme=light] .btn-primary:hover:not(:disabled){background:#1a1a1a;border-color:#1a1a1a}[data-theme=light] .btn-primary:active:not(:disabled){background:#1a1a1a;border-color:#1a1a1a}[data-theme=light] .btn-primary:disabled{background:#000;border-color:#000;opacity:.55;color:#fff}[data-theme=dark] .btn-primary{background:#fff;color:#000;border:1px solid #ffffff}[data-theme=dark] .btn-primary:hover:not(:disabled){background:#e5e5e5;color:#000;border-color:#e5e5e5}[data-theme=dark] .btn-primary:active:not(:disabled){background:#e5e5e5;border-color:#e5e5e5}[data-theme=dark] .btn-primary:disabled{background:#fff;border-color:#fff;opacity:.55;color:#000}.btn-primary.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--text-sm);min-height:34px}.btn-primary.btn-xs{padding:var(--space-2) var(--space-2);font-size:var(--text-xs);min-height:32px}.btn-primary.btn-uppercase{text-transform:uppercase}.btn-secondary{background:var(--bg-primary);color:#000;border:1px solid #d0d0d0;font-weight:600}.btn-secondary:hover:not(:disabled){background:var(--bg-secondary);border-color:#b0b0b0}html:not([data-theme=dark]) .btn-secondary{background:#fff;color:#000;border-color:#d0d0d0}html:not([data-theme=dark]) .btn-secondary:hover:not(:disabled){background:#f5f5f5;border-color:#b0b0b0}[data-theme=dark] .btn-secondary{background:#fff;color:#000;border:1px solid rgba(255,255,255,.2)}[data-theme=dark] .btn-secondary:hover:not(:disabled){background:#f5f5f5;border-color:#ffffff4d}.btn-white{background:var(--bg-primary);color:#000;border:1px solid #d0d0d0;font-weight:var(--font-bold);box-shadow:none}.btn-white:hover:not(:disabled){background:var(--bg-secondary);transform:none;box-shadow:none}[data-theme=dark] .btn-white{background:#fff;color:#000;border:1px solid rgba(255,255,255,.2)}[data-theme=dark] .btn-white:hover:not(:disabled){background:#f5f5f5;border-color:#ffffff4d}.btn-danger{background:#dc2626;color:#fff;box-shadow:0 4px 12px #dc262666;font-weight:600;letter-spacing:.3px}.btn-danger:hover:not(:disabled){background:#b91c1c;transform:translateY(-1px);box-shadow:0 6px 16px #dc262680}.btn-secondary-danger{background:var(--bg-primary);color:#dc2626;border:1px solid #fca5a5;font-weight:var(--font-semibold)}.btn-secondary-danger:hover:not(:disabled){background:#fef2f2;border-color:#dc2626;color:#b91c1c}[data-theme=dark] .btn-secondary-danger{background:#dc26261a;color:#fca5a5;border-color:#dc26264d}[data-theme=dark] .btn-secondary-danger:hover:not(:disabled){background:#dc262633;border-color:#dc262680;color:#fca5a5}.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--text-base)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border-light);font-weight:var(--font-medium)}.btn-ghost:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--border-strong);color:var(--text-primary)}[data-theme=dark] .btn-ghost{border-color:var(--border-light);color:var(--text-tertiary)}[data-theme=dark] .btn-ghost:hover:not(:disabled){background:var(--bg-quaternary);border-color:var(--border-strong);color:var(--text-primary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d9;z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .3s ease;overflow-y:auto;overflow-x:hidden}[data-theme=light] .modal-overlay{background:#00000080}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-content{position:relative;background:var(--surface-card);border:1px solid var(--border);border-radius:var(--radius-md);max-width:900px;width:100%;max-height:calc(90vh - 40px);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);animation:slideIn .4s ease;margin:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5) 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var(--space-6);border-top:1px solid var(--border);display:flex;gap:var(--space-3);justify-content:flex-end}.welcome-modal-content{max-width:680px}.welcome-modal-body{padding:0}.welcome-modal-header{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);padding:var(--space-10) var(--space-6) var(--space-6);text-align:center}.welcome-modal-logo{height:52px;width:auto;margin-bottom:var(--space-1)}.welcome-modal-title{font-size:var(--text-2xl);font-weight:var(--font-semibold);color:var(--text-primary);margin:0;letter-spacing:-1px}.welcome-modal-content-section{padding:0 var(--space-6) var(--space-6);display:flex;flex-direction:column;gap:var(--space-6)}.welcome-intro{font-size:var(--text-base);font-weight:var(--font-normal);color:var(--text-secondary);line-height:1.5;margin:0 0 var(--space-6) 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var(--space-4) var(--space-7);padding:var(--space-4);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-style:italic}.welcome-feature-content{flex:1}.welcome-feature-content h3{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--text-primary);margin:0 0 2px}.welcome-feature-content p{font-size:var(--text-sm);font-weight:var(--font-normal);color:var(--text-secondary);line-height:1.5;margin:0}.welcome-outro{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-tertiary);line-height:1.5;margin:0;text-align:center;padding-top:var(--space-4);border-top:1px solid var(--border)}.welcome-modal-footer{padding:var(--space-6) var(--space-6) var(--space-8);border-top:1px solid var(--border);display:flex;justify-content:center}.welcome-modal-footer button{width:100%;max-width:200px}.loader{display:flex;align-items:center;justify-content:center}.loader-spinner{border:3px solid var(--border);border-top-color:var(--text-primary);border-radius:50%;animation:spin 1s linear infinite}.loader-small .loader-spinner{width:var(--space-5);height:var(--space-5);border-width:2px}.loader-medium .loader-spinner{width:var(--space-7);height:var(--space-7);border-width:3px}.loader-large .loader-spinner{width:var(--space-9);height:var(--space-9);border-width:4px}.session-timeout-modal{max-width:420px}.session-timeout-body{margin:0;color:var(--text-secondary);font-size:var(--text-base)}.session-timeout-body+.session-timeout-body{margin-top:var(--space-3)}.session-timeout-countdown{margin-top:var(--space-4);font-size:var(--text-2xl);font-weight:var(--font-semibold);color:var(--text-primary)}.session-timeout-actions{display:flex;flex-wrap:wrap;gap:var(--space-3);justify-content:flex-end;margin-top:var(--space-6)}@media (max-width: 480px){.session-timeout-actions{flex-direction:column-reverse;align-items:stretch}}.toast-container{position:fixed;top:var(--space-12);right:var(--space-5);z-index:var(--z-toast);display:flex;flex-direction:column;gap:var(--space-3);pointer-events:none}.toast{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-4) var(--space-5);display:flex;align-items:center;gap:var(--space-3);min-width:300px;max-width:400px;box-shadow:var(--shadow-md);animation:slideInFromRight .3s ease;pointer-events:auto}.toast-message{flex:1;color:var(--text-primary);font-size:var(--text-base);line-height:1.5}.toast-action{background:none;border:1px solid var(--border);color:var(--text-primary);font-size:var(--text-sm);font-weight:var(--font-semibold);padding:6px 10px;border-radius:999px;cursor:pointer;transition:var(--transition-fast);white-space:nowrap}.toast-action:hover{background:var(--surface-card-soft);border-color:var(--border)}.toast-close{background:none;border:none;color:var(--text-tertiary);font-size:var(--text-xl);line-height:1;cursor:pointer;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;transition:color .2s ease}.toast-close:hover{color:var(--text-primary)}.toast-success{border-left:4px solid var(--success)}.toast-error{border-left:4px solid var(--error)}.toast-warning{border-left:4px solid var(--warning)}.toast-info{border-left:4px solid var(--info)}.app-container{height:100dvh;width:100vw;display:flex;flex-direction:column;position:relative;background:var(--bg-primary);transition:background-color .3s ease;overflow:hidden}@supports not (height: 100dvh){.app-container{height:100vh}}.app-loader{height:100dvh;width:100vw;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-primary);transition:background-color .3s ease;padding:24px}@supports not (height: 100dvh){.app-loader{height:100vh}}.app-loader .auth-card{width:min(420px,100%);background:var(--bg-primary);border-radius:12px;padding:40px 36px;border:1px solid var(--border-light);text-align:center}html[data-theme=light] .app-loader .auth-card,[data-theme=light] .app-loader .auth-card{box-shadow:0 2px 8px #00000014}.app-loader .auth-title{margin:24px 0 12px;font-size:26px;font-weight:var(--font-semibold);color:var(--text-primary)}.app-loader .auth-title-smaller{margin:24px 0 12px;font-size:22px;font-weight:var(--font-semibold);color:var(--text-primary)}.app-loader p{margin-top:0;margin-bottom:0;color:var(--text-tertiary);font-size:15px;line-height:1.6}.app-loader button{margin-top:20px;padding:16px 32px;background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:var(--text-base);font-weight:var(--font-bold);letter-spacing:.5px;text-transform:uppercase;transition:all .25s ease}.app-loader button:hover{background:var(--bg-secondary);border-color:var(--border-light)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative;width:100%;max-width:100vw}.conversation-startup-loader{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:var(--space-5) var(--space-6);background:var(--bg-primary);display:flex;justify-content:center}.conversation-startup-loader-inner{width:100%;max-width:var(--content-max-width-chat)}.auth-brand-header{display:flex;align-items:center;justify-content:center;margin-bottom:32px}.auth-logo-wrap{display:flex;align-items:center;justify-content:center;height:48px;flex-shrink:0}.auth-logo{display:block;height:100%;width:auto;-o-object-fit:contain;object-fit:contain}@media (max-width: 768px){.auth-logo-wrap{height:40px}.conversation-startup-loader{padding:var(--space-4)}}:root{--bg-primary: #000000;--bg-secondary: #050505;--bg-tertiary: #0a0a0a;--bg-quaternary: #111111;--surface-card: #000000;--surface-card-soft: rgba(20, 20, 20, .5);--surface-overlay: rgba(0, 0, 0, .95);--sidebar-overlay-bg: rgba(0, 0, 0, .58);--text-primary: #ffffff;--text-secondary: #e5e5e5;--text-tertiary: #a3a3a3;--text-quaternary: #737373;--accent: #ffffff;--accent-hover: #e5e5e5;--border: #333333;--border-light: #333333;--border-subtle: 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