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var(--transition-base)}.card:hover{box-shadow:var(--shadow-md)}.avatar{width:36px;height:36px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:var(--font-md);flex-shrink:0}.avatar-ai{background:var(--secondary-gradient)}.avatar-user{background:var(--border-light)}.avatar-sm{width:28px;height:28px;font-size:var(--font-sm)}.avatar-lg{width:48px;height:48px;font-size:var(--font-xl)}.chip{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:var(--font-sm);font-weight:var(--font-medium);background:var(--bg-muted);color:var(--text-secondary)}.chip-primary{background:var(--primary);color:#fff}.chip-secondary{background:var(--secondary);color:#fff}.input{font-family:var(--font-family);font-size:var(--font-base);padding:var(--space-md);border:1px solid 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.notification-icon{color:var(--color-warning);background:var(--color-warning-light)}.error-notification-info{border-color:var(--color-info);background:var(--color-surface)}.error-notification-info .notification-icon{color:var(--color-info);background:var(--color-info-light)}.notification-icon{width:32px;height:32px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:var(--font-weight-bold);flex-shrink:0}.notification-content{flex:1;min-width:0}.notification-message{margin:0;color:var(--color-text-primary);font-size:var(--font-size-base);line-height:1.5;word-wrap:break-word}.notification-action{margin-top:var(--spacing-sm);padding:var(--spacing-xs) var(--spacing-md);background:transparent;border:1px solid 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.1)}@media(max-width:640px){.notification-container{top:var(--spacing-md);left:var(--spacing-md);right:var(--spacing-md)}.error-notification{max-width:none;width:100%}}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;appearance:textfield}:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #eff6ff;--purple: #8b5cf6;--success: #10b981;--text-primary: #0f172a;--text-secondary: #64748b;--text-tertiary: #94a3b8;--border: #e2e8f0;--bg-primary: #ffffff;--bg-secondary: #f8fafc}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-secondary);color:var(--text-primary);height:100vh;height:100dvh;overflow:hidden}.demo-control{position:fixed;top:10px;left:50%;transform:translate(-50%);z-index:9999;background:#000000e6;color:#fff;padding:8px 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.logo-img{width:80px;height:80px;border-radius:16px}.logo-icon-img{width:36px;height:36px;border-radius:8px}.tab-logo-img{width:18px;height:18px;border-radius:4px;vertical-align:middle;margin-right:4px}.welcome-hero-tagline{font-size:18px;font-weight:500;color:var(--primary);font-style:italic;margin-bottom:20px;line-height:1.5;text-align:center;max-width:340px}.welcome-title{font-size:32px;font-weight:700;margin-bottom:12px}.welcome-subtitle{font-size:16px;opacity:.9;margin-bottom:24px;max-width:340px;line-height:1.5}.welcome-tagline{font-size:14px;opacity:.7;font-style:italic;margin-top:24px;line-height:1.6}.feature-list{display:flex;flex-direction:column;gap:16px;margin-bottom:40px;max-width:300px}.welcome-screen .feature-item{display:flex;align-items:center;gap:12px;text-align:left;background:transparent;padding:0}.welcome-screen 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white}.btn-secondary-auth:hover{background:#ffffff1a}.social-login{width:100%;max-width:320px;margin-top:16px}.social-divider{display:flex;align-items:center;gap:12px;margin-bottom:16px;opacity:.8}.social-divider:before,.social-divider:after{content:"";flex:1;height:1px;background:#ffffff4d}.social-divider span{font-size:12px}.social-buttons{display:flex;gap:12px}.btn-social{flex:1;padding:12px;background:#fff;border:none;border-radius:10px;font-size:20px;cursor:pointer;transition:all .2s}.btn-social:hover{transform:scale(1.05)}.auth-screen{display:flex;flex-direction:column;height:100%;background:var(--bg-primary)}.auth-header{padding:16px;padding-top:calc(16px + env(safe-area-inset-top,0px));display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--border)}.back-btn{width:40px;height:40px;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:8px;color:var(--text-primary);font-size:20px}.back-btn:hover{background:var(--bg-secondary)}.auth-header-title{font-size:18px;font-weight:700}.auth-form-container{flex:1;overflow-y:auto;padding:32px 24px;max-width:500px;margin:0 auto;width:100%}.auth-logo{display:flex;justify-content:center;margin-bottom:24px}.auth-logo-img{width:64px;height:64px;border-radius:12px}.auth-tagline{font-size:16px;font-weight:500;color:var(--primary);font-style:italic;margin-bottom:16px;line-height:1.5;text-align:center}.auth-form-title{font-size:28px;font-weight:700;margin-bottom:8px}.auth-form-subtitle{font-size:15px;color:var(--text-secondary);margin-bottom:16px}.form-group{margin-bottom:20px}.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.form-input{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;outline:none;transition:all .2s}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6b7ec21a}.form-input::placeholder{color:var(--text-tertiary)}.password-input-container{position:relative}.toggle-password{position:absolute;right:16px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:20px}.form-checkbox{display:flex;align-items:center;gap:8px;margin-bottom:24px}.form-checkbox input{width:18px;height:18px;cursor:pointer}.form-checkbox label{font-size:14px;color:var(--text-secondary);cursor:pointer}.btn-submit{width:100%;padding:16px;background:linear-gradient(135deg,var(--primary),var(--purple));color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;margin-bottom:16px}.btn-submit:hover{transform:translateY(-2px);box-shadow:0 6px 20px #6b7ec24d}.btn-submit:disabled{opacity:.6;cursor:not-allowed;transform:none}.form-divider{display:flex;align-items:center;gap:16px;margin:24px 0;color:var(--text-tertiary);font-size:14px}.form-divider:before,.form-divider:after{content:"";flex:1;height:1px;background:var(--border)}.social-login-buttons{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}.btn-social-login{width:100%;padding:14px;background:var(--bg-primary);border:2px solid var(--border);border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:10px}.btn-social-login:hover{border-color:var(--primary);background:var(--bg-secondary)}.form-footer{text-align:center;font-size:14px;color:var(--text-secondary)}.form-link{color:var(--primary);text-decoration:none;font-weight:600;cursor:pointer}.form-link:hover{text-decoration:underline}.forgot-password{text-align:right;margin-bottom:24px}.forgot-password a{font-size:14px;color:var(--primary);text-decoration:none;font-weight:600}.mobile-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-primary);border-bottom:1px solid var(--border);flex-shrink:0;position:relative;z-index:100}.mobile-header-left{display:flex;align-items:center;gap:12px}.menu-btn{width:40px;height:40px;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:8px;color:var(--text-primary);font-size:20px}.mobile-logo{display:flex;align-items:center;gap:8px}.mobile-header-right{display:flex;gap:8px}.icon-btn{width:40px;height:40px;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:8px;font-size:18px}.user-avatar{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--purple));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;cursor:pointer}.empty-state-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center}.empty-icon{font-size:80px;margin-bottom:24px;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}.empty-title{font-size:28px;font-weight:700;margin-bottom:12px}.empty-subtitle{font-size:16px;color:var(--text-secondary);margin-bottom:32px;max-width:400px;line-height:1.6}.cta-btn{padding:16px 32px;background:linear-gradient(135deg,var(--primary),var(--purple));color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:10px;box-shadow:0 4px 12px #6b7ec24d;transition:all .2s}.cta-btn:hover{transform:translateY(-2px)}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}.spinner{width:50px;height:50px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}.success-animation{display:flex;flex-direction:column;align-items:center;gap:20px}.checkmark-circle{width:80px;height:80px;border-radius:50%;background:var(--success);color:#fff;display:flex;align-items:center;justify-content:center;font-size:40px;animation:scaleIn .3s ease-out}@keyframes scaleIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.hide{display:none!important}.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--purple));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:20px}.brand-name{font-size:20px;font-weight:700}.main-content{flex:1;display:flex;flex-direction:column;background:var(--bg-primary);overflow:hidden}.message-bubble{background:#fff;border:1px solid var(--border);border-radius:4px 16px 16px;padding:16px 20px;font-size:13px;color:#334155;line-height:1.6;flex:1;max-width:600px;box-shadow:0 2px 8px #0000000a}.user-bubble{background:var(--primary);color:#fff;border-radius:16px 4px 16px 16px;padding:12px 20px;font-size:13px;max-width:500px}@media(max-width:768px){.chat-container{padding:24px 16px}.trip-type-cards{grid-template-columns:1fr}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.hidden{display:none!important}.user-menu-container{position:relative}.user-avatar-btn{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-weight:600;font-size:14px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center}.user-avatar-btn:hover{background:var(--primary-dark);transform:scale(1.05)}.user-avatar-btn:active{transform:scale(.95)}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:280px;background:var(--bg-primary);border-radius:12px;box-shadow:0 10px 30px #00000026;z-index:1000;overflow:hidden;animation:dropdownAppear .2s ease-out}@keyframes dropdownAppear{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dropdown-header{padding:20px;display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--border)}.dropdown-avatar{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:18px}.dropdown-info{flex:1;overflow:hidden}.dropdown-name{font-weight:600;color:var(--text-primary);font-size:16px}.dropdown-email{font-size:14px;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown-divider{height:1px;background:var(--border)}.dropdown-item{width:100%;padding:14px 20px;border:none;background:none;display:flex;align-items:center;gap:12px;font-size:15px;color:var(--text-primary);cursor:pointer;transition:background .2s;text-align:left}.dropdown-item:hover{background:var(--bg-secondary)}.dropdown-item span:first-child{font-size:18px}.three-column-app{display:flex;flex-direction:column;height:100vh;height:100dvh;background:var(--bg-secondary)}.app-header{height:60px;background:var(--bg-primary);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px}.header-logo{display:flex;align-items:center;gap:10px}.three-column-app .logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--primary),var(--purple));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px}.three-column-app .brand-name{font-size:20px;font-weight:700}.three-column-app .new-trip-btn{display:flex;align-items:center;gap:8px;padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.three-column-app .new-trip-btn:hover{background:var(--primary-dark)}.three-column-app>:not(.app-header){display:flex;flex:1;overflow:hidden}.left-sidebar{width:300px;background:var(--bg-primary);border-right:1px solid var(--border);padding:20px;overflow-y:auto}.sidebar-section-label{font-size:11px;font-weight:600;letter-spacing:.5px;color:var(--text-tertiary);text-transform:uppercase;margin-bottom:12px;margin-top:20px}.left-sidebar>:first-child{margin-top:0}.trip-card-sidebar{display:flex;gap:12px;padding:12px;margin-bottom:8px;border-radius:8px;cursor:pointer;transition:all .2s}.trip-card-sidebar:hover{background:var(--bg-secondary)}.trip-card-sidebar.selected{background:var(--primary-light)}.trip-icon{font-size:24px}.trip-info{flex:1}.trip-name-row{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--text-primary);margin-bottom:4px}.trip-badge{font-size:11px;padding:2px 6px;background:var(--bg-secondary);border-radius:4px;color:var(--text-secondary)}.trip-dates{font-size:13px;color:var(--text-secondary)}.empty-trips{text-align:center;padding:40px 20px;color:var(--text-secondary)}.center-content{flex:1;background:var(--bg-primary);overflow-y:auto}.welcome-center{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:40px;text-align:center}.welcome-icon{font-size:64px;margin-bottom:24px}.welcome-center h1{font-size:36px;font-weight:700;margin-bottom:16px}.welcome-center p{font-size:18px;color:var(--text-secondary);max-width:500px;margin-bottom:32px}.start-trip-btn{display:flex;align-items:center;gap:10px;padding:16px 32px;background:var(--primary);color:#fff;border:none;border-radius:12px;font-size:18px;font-weight:600;cursor:pointer;transition:all .2s}.start-trip-btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px #6b7ec24d}.trip-timeline{padding:32px}.timeline-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border)}.trip-header-info{display:flex;align-items:center;gap:16px}.trip-header-info h1{font-size:32px;font-weight:700;margin:0}.trip-travelers{display:flex;gap:-8px}.traveler-avatar{width:40px;height:40px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;border:3px solid white}.trip-meta{display:flex;gap:20px;color:var(--text-secondary);font-size:14px}.timeline-tabs{display:flex;gap:8px;margin-bottom:32px}.timeline-tabs .tab{padding:10px 20px;background:none;border:1px solid var(--border);border-radius:8px;font-size:14px;cursor:pointer;transition:all .2s}.timeline-tabs .tab:hover{background:var(--bg-secondary)}.timeline-tabs .tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.timeline-day{margin-bottom:40px}.day-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}.day-number{width:48px;height:48px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700}.day-info h3{font-size:20px;font-weight:600;margin-bottom:4px}.day-info p{font-size:14px;color:var(--text-secondary)}.timeline-item{display:flex;gap:16px;padding:20px;background:var(--bg-secondary);border-radius:12px;margin-bottom:12px}.item-icon{font-size:28px}.item-content{flex:1}.item-title{display:flex;align-items:center;gap:12px;font-weight:600;font-size:16px;margin-bottom:4px}.status{font-size:12px;padding:4px 8px;border-radius:4px;font-weight:500}.status.confirmed{background:#d1fae5;color:#065f46}.status.pending{background:#fed7aa;color:#92400e}.status.proposed{background:#ddd6fe;color:#5b21b6}.item-details{font-size:14px;color:var(--text-secondary)}.item-cost{text-align:right}.cost-amount{font-weight:600;color:var(--text-primary)}.cost-type{font-size:12px;color:var(--text-secondary)}.right-sidebar{width:350px;background:var(--bg-primary);border-left:1px solid var(--border);display:flex;flex-direction:column}.ai-chat-panel{display:flex;flex-direction:column;height:100%}.ai-chat-header{padding:20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.ai-header-left{display:flex;align-items:center;gap:12px}.ai-avatar{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--purple));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px}.ai-name{font-weight:600;font-size:16px}.ai-status{font-size:12px;color:var(--text-secondary)}.close-chat-btn{width:32px;height:32px;background:none;border:none;font-size:18px;color:var(--text-secondary);cursor:pointer;border-radius:6px;transition:all .2s}.close-chat-btn:hover{background:var(--bg-secondary)}.ai-chat-messages{flex:1;overflow-y:auto;padding:20px}.ai-message{display:flex;gap:12px;margin-bottom:20px}.ai-avatar-small{width:32px;height:32px;background:linear-gradient(135deg,var(--primary),var(--purple));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.message-content{flex:1}.message-text{font-size:14px;line-height:1.6;color:var(--text-primary);white-space:pre-line}.message-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.action-btn{padding:8px 16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;font-size:13px;cursor:pointer;transition:all .2s}.action-btn:hover{background:var(--primary-light);border-color:var(--primary)}.message-time{font-size:12px;color:var(--text-secondary);margin-top:8px}.ai-chat-input{padding:20px;border-top:1px solid var(--border);display:flex;gap:12px}.ai-chat-input .chat-input{flex:1;padding:12px 16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none;transition:all .2s}.ai-chat-input .chat-input:focus{border-color:var(--primary)}.ai-chat-input .send-btn{width:48px;height:48px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:20px;cursor:pointer;transition:all .2s}.ai-chat-input .send-btn:hover{background:var(--primary-dark)}.mobile-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;padding-top:calc(8px + env(safe-area-inset-top,0px));background:var(--bg-primary);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;min-height:calc(70px + env(safe-area-inset-top,0px));box-sizing:border-box}.mobile-header-left,.mobile-header-right{display:flex;align-items:center;gap:8px}.mobile-edit-btn{width:36px;height:36px;background:#fff;border:1px solid #cbd5e1;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;box-shadow:0 1px 3px #00000014;transition:all .2s}.mobile-edit-btn:active{transform:scale(.95);background:#f8fafc}.menu-btn{width:32px;height:32px;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:6px;color:var(--text-primary);font-size:18px;transition:background .2s}.menu-btn:active{background:var(--bg-secondary)}.menu-btn-prominent{display:flex;align-items:center;gap:6px;padding:8px 14px;background:linear-gradient(135deg,var(--primary) 0%,var(--purple, #8b5cf6) 100%);border:none;border-radius:20px;color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px #6b7ec24d}.menu-btn-prominent:active{transform:scale(.95);box-shadow:0 1px 4px #6b7ec233}.menu-btn-icon{font-size:16px;line-height:1}.menu-btn-label{font-size:15px;font-weight:600;letter-spacing:.3px}.mobile-logo,.mobile-header-right{display:flex;align-items:center;gap:8px}.mobile-header-center{flex:1;display:flex;align-items:center;gap:10px;min-width:0;padding:0 8px}.mobile-trip-photo{width:47px;height:47px;flex-shrink:0;border-radius:10px;overflow:hidden;background:linear-gradient(135deg,#f8f9fa,#e9ecef);display:flex;align-items:center;justify-content:center}.mobile-trip-img{width:100%;height:100%;object-fit:cover}.mobile-trip-emoji{font-size:20px}.mobile-trip-info{flex:1;min-width:0}.mobile-trip-name{font-size:18px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-trip-destination{font-size:15px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-trip-dates{margin-left:6px;font-size:14px;color:#64748b}.mobile-trip-code{margin-left:6px;font-size:12px;color:#94a3b8;opacity:.8}.mobile-party-badge{margin-left:6px;font-size:12px;color:#64748b;font-weight:500}.mobile-edit-btn{width:28px;height:28px;background:transparent;border:1px solid var(--border);border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;flex-shrink:0;transition:background .2s}.mobile-edit-btn:active{background:var(--bg-secondary)}.mobile-profile-btn{width:32px;height:32px;background:linear-gradient(135deg,#6b7ec2,#8a94c8);border:2px solid white;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;font-weight:600;color:#fff;text-transform:uppercase;flex-shrink:0;transition:transform .2s,box-shadow .2s;box-shadow:0 2px 4px #0000001a}.mobile-profile-btn:active{transform:scale(.95)}.mobile-profile-btn:hover{box-shadow:0 3px 8px #6b7ec266}.icon-btn{width:32px;height:32px;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:6px;color:var(--text-secondary);font-size:16px;position:relative;transition:all .2s}.icon-btn:active{background:var(--bg-secondary);transform:scale(.95)}.badge{position:absolute;top:8px;right:8px;width:8px;height:8px;background:var(--danger);border-radius:50%;border:2px solid var(--bg-primary)}.user-avatar-mobile{width:28px;height:28px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:12px}.sidebar-overlay{position:fixed;inset:0;background:#00000080;z-index:200;opacity:0;pointer-events:none;transition:opacity .3s}.sidebar-overlay.active{opacity:1;pointer-events:auto}.sidebar{position:fixed;top:0;left:0;bottom:0;width:240px;background:var(--bg-primary);transform:translate(-100%);transition:transform .3s ease-out;z-index:201;display:flex;flex-direction:column;box-shadow:var(--shadow-lg)}.sidebar.active{transform:translate(0)}.sidebar-header{padding:16px;border-bottom:1px solid var(--border)}.sidebar-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}.new-trip-btn{width:100%;padding:10px 16px;background:linear-gradient(135deg,var(--primary),var(--purple));color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:all .2s}.new-trip-btn:active{transform:scale(.98)}.trips-section{flex:1;overflow-y:auto;padding:12px}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;padding:0 8px}.section-label-container{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.section-label{font-size:10px;font-weight:600;text-transform:uppercase;color:var(--text-tertiary)}.section-label-container .refresh-btn-small{width:24px;height:24px;font-size:12px;min-width:auto;padding:0}.section-actions{display:flex;gap:6px;align-items:center}.icon-btn-small{width:24px;height:24px;border:1px solid var(--border);background:#fff;border-radius:6px;font-size:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.icon-btn-small:hover{background:var(--bg-secondary);border-color:var(--primary)}.icon-btn-small:active{transform:rotate(180deg)}.new-trip-btn-small{width:24px;height:24px;border:none;background:var(--primary);color:#fff;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.new-trip-btn-small:hover{background:var(--primary-dark)}.new-trip-btn-small:active{transform:scale(.9)}.trip-item{padding:10px;margin:2px 0;border-radius:6px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:10px}.trip-item:active{transform:scale(.98)}.trip-item.active{background:var(--primary-light);border:1px solid var(--primary)}.trip-icon{font-size:20px;flex-shrink:0}.trip-info{flex:1;min-width:0}.trip-name{font-size:16px;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:4px;margin-bottom:1px}.group-badge{display:inline-flex;align-items:center;gap:2px;padding:1px 4px;background:var(--primary-light);color:var(--primary);border-radius:3px;font-size:9px}.trip-destination-line{font-size:11px;color:var(--text-secondary);margin-bottom:2px}.trip-dates{font-size:12px;color:var(--text-secondary)}.trip-code-badge{display:inline;font-size:10px;color:#94a3b8;background:none;padding:0;margin:0}.trip-quick-actions{display:inline;margin-left:6px}.trip-quick-btn{font-size:12px;background:none;border:none;padding:0 2px;cursor:pointer;opacity:.5;transition:opacity .15s}.trip-quick-btn:hover{opacity:1}.trip-token-line{font-size:9px;color:var(--text-tertiary);font-family:Monaco,Courier New,monospace;letter-spacing:.5px;margin-top:2px}.trip-dates-icon{margin-right:4px;font-size:13px}.trip-actions-row{display:flex;justify-content:space-between;align-items:center;margin-top:8px;padding-top:8px;border-top:1px solid #e5e7eb}.trip-action-view{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;font-size:13px;font-weight:500;color:#6366f1;background:#eef2ff;border:1px solid #c7d2fe;border-radius:6px;cursor:pointer;transition:all .15s}.trip-action-view:hover{background:#e0e7ff;border-color:#a5b4fc}.trip-action-delete{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;font-size:14px;color:#ef4444;background:#fef2f2;border:1px solid #fecaca;border-radius:6px;cursor:pointer;transition:all .15s}.trip-action-delete:hover{background:#fee2e2;border-color:#fca5a5}.sidebar-footer{padding:12px;border-top:1px solid var(--border);margin-top:auto;display:flex;flex-direction:column;gap:8px}.sidebar-logout-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 12px;background:transparent;color:#dc2626;border:none;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease}.sidebar-logout-btn:hover{background:#fef2f2}.sidebar-logout-btn svg{flex-shrink:0}.sidebar-refresh-time{font-size:9px;color:#94a3b8;margin-top:4px;opacity:.8;line-height:1.2}.user-menu{display:flex;align-items:center;justify-content:space-between}.user-info{display:flex;align-items:center;gap:8px}.user-avatar{width:32px;height:32px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:12px}.user-details{min-width:0}.user-name{font-size:12px;font-weight:600}.user-email{font-size:11px;color:var(--text-secondary)}.logout-btn{padding:4px 8px;background:none;border:1px solid var(--border);border-radius:4px;font-size:11px;cursor:pointer;transition:all .2s}.logout-btn:hover{background:var(--bg-secondary)}.main-content{flex:1;display:flex;flex-direction:column;overflow-y:auto;background:var(--bg-secondary)}.trip-view{flex:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}.trip-header{padding:12px 20px;background:var(--bg-primary);border-bottom:1px solid var(--border);flex-shrink:0;position:relative;z-index:10}.trip-header-content{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}.trip-title-section{flex:1;min-width:300px}.trip-title{font-size:24px;font-weight:700;color:var(--text-primary);margin:0}.trip-type-badge{padding:4px 12px;border-radius:12px;font-size:12px;font-weight:600}.trip-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--text-secondary)}.trip-meta 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span:last-child{font-size:.75rem;color:#666}.quick-share-btn-highlight{background:linear-gradient(135deg,#f3e8ff,#e9d5ff);border:1px solid #c4b5fd}.quick-share-btn-highlight:hover{background:linear-gradient(135deg,#e9d5ff,#ddd6fe)}.share-modal-close{width:100%;padding:14px;background:#1a1a1a;color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s ease}.share-modal-close:hover{background:#333}@media(max-width:480px){.share-modal-content{padding:20px;margin:10px}.quick-share-buttons{flex-wrap:wrap}.quick-share-btn{flex:1;min-width:60px}}.group-trip-explanation{display:flex;flex-direction:column;gap:16px;padding:8px 0}.explanation-item{display:flex;align-items:flex-start;gap:12px}.explanation-icon{font-size:1.5rem;flex-shrink:0}.explanation-title{font-weight:600;color:#1a1a1a;margin-bottom:4px}.explanation-desc{font-size:.875rem;color:#666}.group-trip-note{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#f0f9ff;border-radius:8px;font-size:.875rem;color:#0369a1;margin:16px 0}.note-icon{font-size:1rem;flex-shrink:0}.share-modal-actions{display:flex;flex-direction:column;gap:12px;margin-top:8px}.share-modal-create-btn{width:100%;padding:14px;background:linear-gradient(135deg,#1a73e8,#1557b0);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.share-modal-create-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #1a73e84d}.share-modal-create-btn:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.share-modal-cancel-btn{width:100%;padding:12px;background:transparent;color:#666;border:1px solid #ddd;border-radius:12px;font-size:.9rem;cursor:pointer;transition:all .2s ease}.share-modal-cancel-btn:hover{background:#f5f5f5;color:#333}.group-status-card{display:flex;align-items:center;gap:12px;padding:16px;background:linear-gradient(135deg,#f0fdf4,#dcfce7);border-radius:12px;margin-bottom:20px}.group-status-icon{font-size:2rem}.group-status-info{flex:1}.group-status-count{font-weight:600;color:#166534;font-size:1.1rem}.group-status-role{font-size:.85rem;color:#15803d}.shared-trip-page{min-height:100vh;height:100vh;background:#f5f5f5;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}.shared-trip-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:#fff;box-shadow:0 2px 4px #0000000d;position:sticky;top:0;z-index:100}.shared-trip-logo{display:flex;align-items:center;gap:8px}.shared-trip-logo-img{width:32px;height:32px;object-fit:contain}.shared-trip-logo-text{font-size:1.2rem;font-weight:700;color:#6b7ec2}.shared-trip-unlock-btn{padding:8px 16px;background:#1a73e8;color:#fff;border:none;border-radius:20px;font-size:.85rem;font-weight:500;cursor:pointer;transition:background .2s ease}.shared-trip-unlock-btn:hover{background:#1557b0}.shared-trip-hero{height:200px;background:linear-gradient(135deg,#6b7ec2,#8a94c8);background-size:cover;background-position:center;position:relative}.shared-trip-hero-overlay{position:absolute;inset:0;background:linear-gradient(to top,#0009,#0003);display:flex;align-items:flex-end}.shared-trip-hero-content{padding:24px;color:#fff;width:100%}.shared-trip-title{font-size:1.75rem;font-weight:700;margin:0 0 4px;text-shadow:0 2px 4px rgba(0,0,0,.3)}.shared-trip-destination{font-size:1rem;opacity:.9;margin:0}.shared-trip-owner{font-size:.875rem;opacity:.8;margin:8px 0 0;font-style:italic}.shared-trip-stats{display:flex;justify-content:space-around;padding:16px;background:#fff;border-bottom:1px solid #eee}.stat-item{text-align:center}.stat-value{font-size:1.25rem;font-weight:700;color:#1a1a1a}.stat-label{font-size:.75rem;color:#888;margin-top:2px}.shared-trip-content{padding:20px;max-width:600px;margin:0 auto}.shared-trip-section-title{font-size:1.1rem;font-weight:600;color:#1a1a1a;margin:0 0 16px}.shared-trip-items{background:#fff;border-radius:12px;padding:16px;box-shadow:0 2px 8px #0000000d}.shared-trip-item{display:flex;gap:12px;padding:12px 0}.shared-trip-item:first-child{padding-top:0}.shared-trip-item:last-child{padding-bottom:0}.shared-trip-item-time{width:50px;font-size:.85rem;font-weight:500;color:#888;text-align:right;flex-shrink:0}.shared-trip-item-marker{display:flex;flex-direction:column;align-items:center;width:20px;flex-shrink:0}.shared-trip-item-dot{width:10px;height:10px;background:#1a73e8;border-radius:50%;flex-shrink:0}.shared-trip-item-line{width:2px;flex:1;background:#e0e0e0;margin-top:4px}.shared-trip-item-content{flex:1;min-width:0}.shared-trip-item-type{font-size:.65rem;font-weight:600;color:#888;letter-spacing:.5px;margin-bottom:4px}.shared-trip-item-title{font-size:.95rem;font-weight:600;color:#1a1a1a;margin-bottom:2px}.shared-trip-item-location,.shared-trip-item-provider{font-size:.8rem;color:#666}.shared-trip-timeline-wrapper{background:#fff;border-radius:12px;padding:12px;box-shadow:0 2px 8px #0000000d}.shared-trip-timeline-wrapper .compact-timeline{padding:0}.shared-trip-no-items{text-align:center;padding:40px 20px;background:#fff;border-radius:12px;color:#888}.inline-unlock-card{background:linear-gradient(135deg,#f8f9ff,#fff);border:2px dashed #1a73e8;border-radius:16px;padding:24px;margin:16px 0;text-align:center}.inline-unlock-icon{font-size:2rem;margin-bottom:8px}.inline-unlock-count{font-size:1.1rem;font-weight:700;color:#1a73e8;margin-bottom:8px}.inline-unlock-message{font-size:.95rem;color:#666;margin-bottom:16px}.inline-unlock-message strong{color:#333}.inline-unlock-form{max-width:320px;margin:0 auto}.inline-unlock-input-row{display:flex;gap:8px;align-items:center}.inline-unlock-input{flex:1;padding:12px 14px;border:1px solid #ddd;border-radius:10px;font-size:1rem;transition:border-color .2s ease}.inline-unlock-input:focus{outline:none;border-color:#1a73e8;box-shadow:0 0 0 3px #1a73e81a}.inline-unlock-input::placeholder{color:#aaa;font-size:.9rem}.inline-unlock-btn{padding:12px 20px;background:#1a73e8;color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;white-space:nowrap}.inline-unlock-btn:hover:not(:disabled){background:#1557b0;transform:translate(2px)}.inline-unlock-btn:disabled{opacity:.5;cursor:not-allowed}.inline-unlock-error{background:#fef2f2;color:#dc2626;padding:10px 14px;border-radius:8px;font-size:.85rem;margin-top:12px;text-align:center}.locked-days-teaser{display:flex;flex-direction:column;gap:8px;margin-top:12px}.locked-day-blur{background:linear-gradient(90deg,#ffffffe6,#f0f0f0cc);border-radius:12px;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;filter:blur(2px);opacity:.6;pointer-events:none}.locked-day-label{font-weight:600;color:#888}.locked-day-items{font-size:.85rem;color:#aaa}@media(max-width:480px){.inline-unlock-card{padding:20px 16px;margin:12px 0}.inline-unlock-input-row{flex-direction:column}.inline-unlock-input{width:100%}.inline-unlock-btn{width:100%;padding:14px}}.shared-trip-cta{max-width:600px;margin:32px auto;padding:32px 24px;background:linear-gradient(135deg,#6b7ec2,#8a94c8);border-radius:16px;text-align:center;color:#fff}.cta-sparkle{font-size:2rem;margin-bottom:12px}.cta-title{font-size:1.5rem;font-weight:700;margin:0 0 8px}.cta-subtitle{font-size:.95rem;opacity:.9;margin:0 0 24px;line-height:1.5}.cta-buttons{display:flex;flex-direction:column;gap:12px}.cta-button-primary,.cta-button-secondary{padding:14px 24px;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.cta-button-primary{background:#fff;color:#6b7ec2;border:none}.cta-button-primary:hover{background:#f0f0f0}.cta-button-secondary{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.5)}.cta-button-secondary:hover{background:#ffffff1a;border-color:#fff}.shared-trip-footer{text-align:center;padding:24px;color:#888;font-size:.85rem}.shared-trip-footer a{color:#1a73e8;text-decoration:none}.shared-trip-footer a:hover{text-decoration:underline}.shared-trip-loading,.shared-trip-error{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;padding:24px}.loading-spinner{width:40px;height:40px;border:3px solid #e0e0e0;border-top:3px solid #1a73e8;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.shared-trip-error h1{font-size:1.5rem;color:#1a1a1a;margin:0 0 8px}.shared-trip-error p{color:#666;margin:0 0 24px}@media(max-width:600px){.shared-trip-hero{height:160px}.shared-trip-title{font-size:1.4rem}.shared-trip-content{padding:16px}.verify-section{margin:16px;padding:20px}.shared-trip-cta{margin:24px 16px;padding:24px 20px}.cta-title{font-size:1.25rem}}.copy-trip-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999}.copy-trip-modal{background:#fff;border-radius:16px;padding:40px 48px;text-align:center;box-shadow:0 20px 60px #0000004d;animation:copyModalSlideUp .3s ease-out}@keyframes copyModalSlideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.copy-trip-spinner{width:48px;height:48px;border:4px solid #e2e8f0;border-top-color:var(--primary, #6366f1);border-radius:50%;animation:copySpinner .8s linear infinite;margin:0 auto 20px}@keyframes copySpinner{to{transform:rotate(360deg)}}.copy-trip-modal h3{font-size:1.25rem;color:#1e293b;margin:0 0 8px;font-weight:600}.copy-trip-modal p{font-size:.9rem;color:#64748b;margin:0}.copy-trip-error-toast{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#fef2f2;border:1px solid #fecaca;color:#dc2626;padding:12px 20px;border-radius:8px;display:flex;align-items:center;gap:12px;z-index:9999;box-shadow:0 4px 12px #00000026;animation:toastSlideDown .3s ease-out}@keyframes toastSlideDown{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.copy-trip-error-toast button{background:none;border:none;color:#dc2626;cursor:pointer;font-size:16px;padding:4px;opacity:.7}.copy-trip-error-toast button:hover{opacity:1}.join-code-card{display:flex;align-items:center;gap:12px;padding:16px;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:12px;border:2px dashed #f59e0b}.join-code-display{flex:1;text-align:center}.join-code-text{font-family:Monaco,Consolas,monospace;font-size:1.5rem;font-weight:700;color:#92400e;letter-spacing:2px}.join-code-hint{font-size:.8rem;color:#78716c;text-align:center;margin-top:8px;margin-bottom:0}.join-trip-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;background:linear-gradient(135deg,#f0f4ff,#e8f0fe);padding:20px}.join-trip-container{width:100%;max-width:440px;display:flex;flex-direction:column;align-items:center}.join-trip-header{padding:20px 0;margin-bottom:20px}.join-trip-logo{display:flex;align-items:center;gap:8px;cursor:pointer}.join-trip-logo .logo-icon{font-size:1.5rem}.join-trip-logo .logo-text{font-size:1.4rem;font-weight:700;color:#6b7ec2}.join-trip-card{background:#fff;border-radius:20px;padding:40px 32px;box-shadow:0 10px 40px #00000014;text-align:center;width:100%}.join-trip-icon{font-size:3rem;margin-bottom:16px}.join-trip-card h1{font-size:1.6rem;font-weight:700;color:#1a1a2e;margin:0 0 8px}.join-trip-subtitle{color:#6b7280;font-size:.95rem;margin:0 0 32px}.join-trip-form{display:flex;flex-direction:column;gap:16px}.join-code-input-container{display:flex;justify-content:center}.join-code-input{font-family:Monaco,Consolas,monospace;font-size:1.5rem;font-weight:600;letter-spacing:3px;text-align:center;padding:16px 20px;border:2px solid #e5e7eb;border-radius:12px;width:100%;max-width:300px;transition:border-color .2s,box-shadow .2s}.join-code-input:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.join-code-input::placeholder{font-weight:400;letter-spacing:1px;color:#9ca3af}.join-trip-error{background:#fef2f2;color:#dc2626;padding:12px 16px;border-radius:8px;font-size:.9rem;text-align:left}.join-trip-button{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:12px;padding:16px 32px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.join-trip-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #6366f14d}.join-trip-button:disabled{opacity:.6;cursor:not-allowed}.join-trip-example{margin-top:24px;padding:12px 16px;background:#f9fafb;border-radius:8px;display:flex;align-items:center;justify-content:center;gap:8px}.join-trip-example .example-label{color:#6b7280;font-size:.85rem}.join-trip-example .example-code{font-family:Monaco,Consolas,monospace;font-weight:600;color:#1f2937;letter-spacing:1px}.join-trip-help{margin-top:20px;padding-top:20px;border-top:1px solid #e5e7eb}.join-trip-help p{color:#6b7280;font-size:.85rem;margin:0;line-height:1.5}.join-trip-back{margin-top:24px;background:none;border:none;color:#6b7280;font-size:.9rem;cursor:pointer;transition:color .2s}.join-trip-back:hover{color:#1f2937}.join-trip-loading{padding:60px 20px;text-align:center;color:#6b7280}.join-trip-success{padding:40px 20px;text-align:center}.join-trip-success .success-icon{font-size:4rem;margin-bottom:16px}.join-trip-success h2{font-size:1.8rem;font-weight:700;color:#166534;margin:0 0 12px}.join-trip-success p{color:#374151;font-size:1.1rem;margin:0 0 8px}.join-trip-success .success-detail{color:#6b7280;font-size:.9rem}.join-trip-success .success-redirect{color:#9ca3af;font-size:.85rem;margin-top:24px}.join-group-trip-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:calc(100% - 32px);margin:16px;padding:12px 16px;background:transparent;border:2px dashed #d1d5db;border-radius:12px;color:#6b7280;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s ease}.join-group-trip-btn:hover{border-color:#6366f1;color:#6366f1;background:#6366f10d}.join-group-trip-icon{font-size:1.1rem}