:root{--tc-bg-app: #09090b;--tc-bg-card: #18181b;--tc-bg-element: #27272a;--tc-bg-overlay: rgba(0,0,0,.9);--tc-border: #3f3f46;--tc-border-subtle: #2a2a2a;--tc-border-dashed: #3f3f46;--tc-text-primary: #f4f4f5;--tc-text-secondary: #a1a1aa;--tc-text-tertiary: #71717a;--tc-accent: #6366f1;--tc-accent-hover: #4f46e5;--tc-accent-dim: rgba(99, 102, 241, .12);--tc-accent-border: rgba(99, 102, 241, .2);--tc-success-text: #34d399;--tc-success-bg: rgba(16, 185, 129, .15);--tc-success-border: rgba(16, 185, 129, .15);--tc-danger-text: #fb7185;--tc-danger-bg: rgba(244, 63, 94, .15);--tc-danger-border: rgba(244, 63, 94, .2);--tc-warning-text: #fbbf24;--tc-warning-bg: rgba(251, 191, 36, .08);--tc-warning-border: rgba(251, 191, 36, .15);--tc-avatar-bg: #3f3f46;--tc-avatar-border: #52525b;--tc-glass-bg: rgba(24, 24, 27, .7);--tc-glass-border: rgba(255, 255, 255, .1);--tc-radius-sm: 8px;--tc-radius-md: 12px;--tc-radius-lg: 16px;--tc-radius-full: 9999px;--tc-space-1: 4px;--tc-space-2: 8px;--tc-space-3: 12px;--tc-space-4: 16px;--tc-space-5: 20px;--tc-space-6: 24px;--tc-space-8: 32px;--tc-space-10: 40px;--tc-shadow-card: none;--tc-shadow-auth: 0 25px 50px -12px rgba(0,0,0,.5);--tc-shadow-avatar: 0 2px 5px rgba(0,0,0,.3);--tc-shadow-tab-active: 0 1px 3px rgba(0,0,0,.3);--tc-transition-fast: all .2s ease;--tc-transition-med: all .3s ease;--tc-font-sans: "Poppins", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--tc-font-mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;--tc-text-xs: .65rem;--tc-text-sm: .75rem;--tc-text-base: .875rem;--tc-text-md: .95rem;--tc-text-lg: 1.1rem;--tc-text-xl: 1.25rem;--tc-text-2xl: 1.5rem;--tc-text-display-sm: 1.8rem;--tc-text-display: 2rem;--tc-font-regular: 400;--tc-font-medium: 500;--tc-font-semibold: 600;--tc-font-bold: 700;--tc-font-extrabold: 800;--tc-tracking-tight: -1px;--tc-tracking-normal: 0;--tc-tracking-wide: .5px;--tc-tracking-wider: 1px;--bg-app: var(--tc-bg-app);--bg-card: var(--tc-bg-card);--bg-element: var(--tc-bg-element);--border: var(--tc-border);--text-primary: var(--tc-text-primary);--text-secondary: var(--tc-text-secondary);--text-tertiary: var(--tc-text-tertiary);--accent: var(--tc-accent);--accent-hover: var(--tc-accent-hover);--success-bg: var(--tc-success-bg);--success-text: var(--tc-success-text);--danger-bg: var(--tc-danger-bg);--danger-text: var(--tc-danger-text);--radius-sm: var(--tc-radius-sm);--radius-md: var(--tc-radius-md);--radius-lg: var(--tc-radius-lg)}*,*:before,*:after{box-sizing:border-box}body,html,#root{background-color:var(--tc-bg-app);color:var(--tc-text-primary);font-family:var(--tc-font-sans);margin:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:500px;margin:0 auto;padding:10px 20px}.header-wrapper{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:var(--tc-radius-sm);font-weight:var(--tc-font-medium);font-size:var(--tc-text-base);cursor:pointer;transition:transform .15s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;border:1px solid transparent;font-family:var(--tc-font-sans)}.btn:hover{transform:translateY(-1px)}.btn:active{transform:scale(.96);transition:transform 50ms}.btn-primary{background-color:var(--tc-text-primary);color:var(--tc-bg-app);border-color:var(--tc-text-primary)}.btn-primary:hover{background-color:#d4d4d8;border-color:#d4d4d8}.btn-secondary{background-color:var(--tc-bg-element);color:var(--tc-text-primary);border:1px solid var(--tc-border)}.btn-secondary:hover{background-color:#3f3f46}.btn-ghost{background:transparent;color:var(--tc-text-secondary)}.btn-ghost:hover{color:var(--tc-text-primary);background:var(--tc-bg-element)}.btn-accent{background-color:var(--tc-accent);color:#fff;border-color:var(--tc-accent)}.btn-accent:hover{background-color:var(--tc-accent-hover);border-color:var(--tc-accent-hover)}.btn-danger{background-color:var(--tc-danger-bg);color:var(--tc-danger-text);border-color:var(--tc-danger-border)}.trip-card{background-color:var(--tc-bg-card);border:1px solid var(--tc-border);border-radius:var(--tc-radius-lg);padding:20px;margin-bottom:16px;transition:var(--tc-transition-med);position:relative;overflow:hidden}.trip-card:hover{border-color:var(--tc-accent-border);box-shadow:0 8px 30px var(--tc-accent-dim);transform:translateY(-2px) scale(1.005)}.trip-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.trip-name{font-size:var(--tc-text-lg);font-weight:var(--tc-font-extrabold);color:var(--tc-text-primary);margin-bottom:4px}.trip-date{font-size:.8rem;color:var(--tc-text-tertiary)}.balance-section{display:flex;flex-direction:column;gap:4px;padding-bottom:20px;border-bottom:1px solid var(--tc-border);margin-bottom:16px}.balance-label{font-size:var(--tc-text-sm);text-transform:uppercase;letter-spacing:var(--tc-tracking-wide);color:var(--tc-text-tertiary);font-weight:var(--tc-font-bold)}.balance-amount{font-size:var(--tc-text-display);font-weight:var(--tc-font-extrabold);letter-spacing:var(--tc-tracking-tight);line-height:1}.amount-positive{color:var(--tc-success-text)}.amount-negative{color:var(--tc-danger-text)}.amount-neutral{color:var(--tc-text-secondary)}.balance-status{font-size:.85rem;margin-top:4px;font-weight:var(--tc-font-medium)}.card-footer{display:flex;justify-content:space-between;align-items:center}.avatar-stack{display:flex;align-items:center}.avatar{width:28px;height:28px;border-radius:var(--tc-radius-full);background:var(--tc-avatar-bg);border:1px solid var(--tc-avatar-border);margin-left:-8px;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:var(--tc-font-bold);color:var(--tc-text-primary);box-shadow:0 2px 4px #00000026;transition:transform .2s ease,box-shadow .2s ease;flex-shrink:0}.avatar:hover{transform:translateY(-2px) scale(1.1);box-shadow:0 4px 10px #00000040;z-index:20!important}.avatar:first-child{margin-left:0}.total-spent{text-align:right}.total-label{font-size:.7rem;color:var(--tc-text-tertiary)}.total-value{font-size:.9rem;font-weight:var(--tc-font-semibold);color:var(--tc-text-secondary)}.tabs-wrapper{background-color:var(--tc-bg-element);padding:4px;border-radius:var(--tc-radius-md);display:flex;margin-bottom:24px;position:relative}.tab-btn{flex:1;padding:8px 4px;font-size:.8rem;font-weight:var(--tc-font-medium);border-radius:calc(var(--tc-radius-md) - 4px);border:none;cursor:pointer;background:transparent;color:var(--tc-text-secondary);transition:color .3s ease;font-family:var(--tc-font-sans);white-space:nowrap;position:relative;z-index:2}.tab-btn.active{color:var(--tc-text-primary)}.form-input{background-color:var(--tc-bg-app);border:1px solid var(--tc-border);color:var(--tc-text-primary);padding:12px;border-radius:var(--tc-radius-sm);width:100%;font-size:var(--tc-text-md);font-family:var(--tc-font-sans);outline:none;transition:border-color .2s}.form-input:focus{border-color:var(--tc-accent)}.form-input::placeholder{color:var(--tc-text-tertiary)}.new-trip-card{background-color:transparent;border:2px dashed var(--tc-border-dashed);border-radius:var(--tc-radius-lg);padding:20px;margin-bottom:24px}.auth-container{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background-color:var(--tc-bg-app);overflow:hidden;padding:24px}.auth-card{background:var(--tc-bg-card);padding:36px;border-radius:20px;border:1px solid var(--tc-bg-element);width:100%;max-width:380px;box-shadow:var(--tc-shadow-auth)}.auth-card .btn-primary{background-color:var(--tc-accent)!important;color:#fff!important;border:none;font-family:var(--tc-font-sans)}.auth-card .btn-primary:hover{background-color:var(--tc-accent-hover)!important}.tc-amount{font-size:var(--tc-text-display-sm);font-weight:var(--tc-font-extrabold);letter-spacing:var(--tc-tracking-tight);line-height:1;color:var(--tc-text-primary);font-family:var(--tc-font-sans)}.tc-amount-sm{font-size:var(--tc-text-lg);font-weight:var(--tc-font-extrabold);letter-spacing:var(--tc-tracking-tight);color:var(--tc-text-primary)}.tc-heading{font-size:var(--tc-text-xl);font-weight:var(--tc-font-extrabold);color:var(--tc-text-primary);font-family:var(--tc-font-sans)}.tc-subheading{font-size:var(--tc-text-lg);font-weight:var(--tc-font-bold);color:var(--tc-text-primary)}.tc-label{font-size:var(--tc-text-sm);font-weight:var(--tc-font-bold);text-transform:uppercase;letter-spacing:var(--tc-tracking-wide);color:var(--tc-text-tertiary)}.tc-label-sm{font-size:var(--tc-text-xs);font-weight:var(--tc-font-bold);text-transform:uppercase;letter-spacing:var(--tc-tracking-wider);color:var(--tc-text-tertiary)}.tc-body{font-size:var(--tc-text-base);font-weight:var(--tc-font-regular);color:var(--tc-text-secondary);line-height:1.5}.tc-body-strong{font-size:var(--tc-text-base);font-weight:var(--tc-font-medium);color:var(--tc-text-primary)}.tc-caption{font-size:var(--tc-text-xs);color:var(--tc-text-tertiary)}.tc-mono{font-family:var(--tc-font-mono);font-size:var(--tc-text-base);color:var(--tc-text-secondary);line-height:1.4;white-space:pre-wrap}.tc-positive{color:var(--tc-success-text)}.tc-negative{color:var(--tc-danger-text)}.tc-neutral{color:var(--tc-text-secondary)}@keyframes animate-in-keyframes{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:animate-in-keyframes .3s ease forwards}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--tc-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--tc-text-tertiary)}.flex-between{display:flex;justify-content:space-between;align-items:center}.flex-center{display:flex;justify-content:center;align-items:center}.flex-col{display:flex;flex-direction:column}.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.glass-panel{background-color:var(--tc-glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--tc-glass-border)}.glass-overlay{background-color:#09090b99;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.animate-accordion{overflow:hidden}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;background-color:var(--tc-bg-card);border:1px dashed var(--tc-border-dashed);border-radius:var(--tc-radius-lg);color:var(--tc-text-secondary);text-align:center;gap:16px;transition:all .3s ease}.empty-state:hover{border-color:var(--tc-border);background-color:var(--tc-bg-element)}.empty-icon{font-size:3rem;opacity:.8;margin-bottom:8px}.empty-title{font-size:1.1rem;font-weight:var(--tc-font-bold);color:var(--tc-text-primary);margin-bottom:4px}.avatar-flat{border-radius:var(--tc-radius-full);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:var(--tc-font-bold);color:#fff;box-shadow:0 2px 4px #0000001a;transition:transform .2s ease}.bg-avatar-1{background-color:#ef4444}.bg-avatar-2{background-color:#f97316}.bg-avatar-3{background-color:#eab308}.bg-avatar-4{background-color:#22c55e}.bg-avatar-5{background-color:#0ea5e9}.bg-avatar-6{background-color:#8b5cf6}.bg-avatar-7{background-color:#ec4899}.bg-avatar-8{background-color:#6366f1}.dash-primary-tabs-wrapper{background:var(--tc-bg-element);border-radius:var(--tc-radius-lg);padding:4px;margin-bottom:12px;border:1px solid var(--tc-border-subtle);position:relative;display:flex;justify-content:space-between;align-items:center;gap:4px}.dash-primary-tab-btn{flex:1;padding:12px 16px;border-radius:calc(var(--tc-radius-lg) - 4px);border:none;cursor:pointer;font-family:var(--tc-font-sans);font-size:.85rem;font-weight:var(--tc-font-bold);display:flex;align-items:center;justify-content:center;gap:8px;background:transparent;position:relative;z-index:2;transition:color .2s ease}.dash-primary-tab-btn.selected{color:#fff}.dash-primary-tab-btn.unselected{color:var(--tc-text-secondary)}.dash-tab-count.selected{background:#ffffff40;color:#fff}.dash-tab-count.unselected{background:var(--tc-border-subtle);color:var(--tc-text-tertiary)}.dash-tab-count{font-size:.65rem;font-weight:var(--tc-font-extrabold);padding:2px 7px;border-radius:10px;min-width:18px;text-align:center;transition:all .2s ease}.dash-trip-list{display:flex;flex-direction:column;gap:14px;padding-bottom:40px}.dash-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.dash-card-title{font-size:1.1rem;font-weight:var(--tc-font-extrabold);color:var(--tc-text-primary)}.dash-card-share-btn{width:40px;height:40px;border:none;cursor:pointer;z-index:10}.dash-avatar-stack-container{padding-left:8px;margin-bottom:14px;margin-top:12px}.dash-avatar-stack-inner{display:flex;align-items:center;padding-left:10px}.dash-card-amounts-wrapper{display:flex;gap:16px;margin-bottom:14px;align-items:flex-start}.dash-card-column{flex:1}.dash-amount-label{font-size:.65rem;font-weight:var(--tc-font-bold);text-transform:uppercase;letter-spacing:.5px;color:var(--tc-text-tertiary);margin-bottom:3px}.dash-amount-value{font-size:1.6rem;font-weight:var(--tc-font-extrabold);letter-spacing:-1px;display:flex;align-items:baseline;gap:4px}.dash-amount-total{color:var(--tc-text-primary)}.dash-amount-currency{color:#555;font-size:.8rem}.dash-card-vertical-divider{width:1px;height:40px;background:var(--tc-border-subtle);margin-top:10px}.dash-card-horizontal-divider{height:1px;background:var(--tc-border-subtle);margin-bottom:12px}.dash-card-footer{display:flex;justify-content:space-between;align-items:center}.dash-card-status{font-size:.7rem;font-weight:var(--tc-font-extrabold);letter-spacing:.5px}.dash-card-status.active{color:var(--tc-accent)}.dash-card-status.settled{color:var(--tc-text-secondary)}.dash-card-actions{display:flex;align-items:center;gap:12px}.dash-card-action-btn{background:none;border:none;cursor:pointer;font-size:.7rem;font-weight:var(--tc-font-semibold);padding:4px 8px;border-radius:6px;opacity:.6;font-family:var(--tc-font-sans);transition:all .2s ease}.dash-card-action-btn:hover{opacity:1;background:var(--tc-bg-element)}.dash-card-action-btn.delete{color:var(--tc-danger-text)}.dash-card-action-btn.leave{color:var(--tc-warning-text)}.dash-card-view-details{color:var(--tc-text-tertiary);font-size:.7rem}.dash-empty-state-btn{width:100%;cursor:pointer}.dash-empty-state-icon{width:48px;height:48px;border-radius:50%;background:var(--tc-accent-dim);display:flex;align-items:center;justify-content:center;border:1px solid var(--tc-accent-border);font-size:1.4rem;font-weight:var(--tc-font-bold);color:var(--tc-accent)}.dash-empty-state-text{font-weight:var(--tc-font-semibold);color:var(--tc-text-secondary);font-size:.9rem}.dash-new-trip-container{background-color:var(--tc-bg-card);padding:24px;border-radius:var(--tc-radius-lg);border:1px solid var(--tc-border-subtle);box-shadow:0 10px 30px #00000080}.form-label{font-size:.75rem;color:var(--tc-text-secondary);font-weight:var(--tc-font-bold);text-transform:uppercase;margin-bottom:12px}.form-label-sm{font-size:.7rem;color:var(--tc-text-tertiary);font-weight:var(--tc-font-semibold);text-transform:uppercase;margin-bottom:8px}.dash-form-input{margin-bottom:16px;box-sizing:border-box}.form-select{width:100%;background-color:var(--tc-bg-element);border:1px solid var(--tc-border-subtle);border-radius:var(--tc-radius-md);padding:12px;color:var(--tc-text-primary);font-size:.85rem;margin-bottom:20px;font-family:var(--tc-font-sans);outline:none;transition:border-color .2s}.form-select:focus{border-color:var(--tc-accent)}.dash-form-actions{display:flex;gap:10px}.dash-main-footer{padding:20px 0;text-align:center;font-size:.65rem;color:#555;display:flex;flex-direction:column;align-items:center;gap:8px}.dash-main-footer a{color:#666;text-decoration:none;margin-right:12px}.dash-main-footer a:last-child{margin-right:0}