:root{--bg: #f8f9fa;--surface: #ffffff;--border: #e2e8f0;--text: #1a202c;--text-secondary: #64748b;--primary: #1a56db;--primary-light: #dbeafe;--red: #e53e3e;--green: #38a169;--orange: #dd6b20;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app-layout{min-height:100vh;display:flex;flex-direction:column}.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 1.5rem;height:56px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.topbar-brand{font-weight:700;font-size:1.15rem;color:var(--text);display:flex;align-items:center;gap:.5rem}.topbar-brand .brand-icon{font-size:1.4rem}.topbar nav{display:flex;gap:.25rem}.topbar nav a{padding:.4rem .85rem;border-radius:var(--radius);font-size:.875rem;font-weight:500;color:var(--text-secondary);transition:all .15s}.topbar nav a:hover{background:var(--bg);color:var(--text);text-decoration:none}.topbar nav a.active{background:var(--primary-light);color:var(--primary)}.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;padding:.25rem}.main-content{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:1.5rem}.page-header{margin-bottom:1.5rem}.page-header h1{font-size:1.5rem;font-weight:700}.page-header p{color:var(--text-secondary);font-size:.9rem;margin-top:.25rem}.card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:1.25rem}.card+.card{margin-top:.75rem}.badge{display:inline-flex;align-items:center;font-size:.75rem;font-weight:600;padding:.15rem .55rem;border-radius:100px}.badge-operator{color:#fff}.badge-line{color:#fff;margin:2px}.search-input{width:100%;padding:.65rem 1rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.95rem;font-family:inherit;outline:none;transition:border-color .15s}.search-input:focus{border-color:var(--primary)}.grid{display:grid;gap:.75rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.stat-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:1.25rem;text-align:center}.stat-card .stat-value{font-size:2rem;font-weight:700;color:var(--primary)}.stat-card .stat-label{font-size:.85rem;color:var(--text-secondary);margin-top:.25rem}.loading{display:flex;align-items:center;justify-content:center;padding:3rem;color:var(--text-secondary)}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite;margin-right:.75rem}@keyframes spin{to{transform:rotate(360deg)}}.error-box{background:#fff5f5;border:1px solid #feb2b2;border-radius:var(--radius);padding:1rem;color:var(--red);font-size:.9rem}.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;border-radius:var(--radius);font-size:.875rem;font-weight:600;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;font-family:inherit;transition:all .15s}.btn:hover{background:var(--bg)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:#1a47c4}.filter-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem}.filter-chip{padding:.35rem .85rem;border-radius:100px;font-size:.8rem;font-weight:500;border:1px solid var(--border);background:var(--surface);cursor:pointer;transition:all .15s;font-family:inherit}.filter-chip:hover{border-color:var(--primary);color:var(--primary)}.filter-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}.station-name{font-weight:600;font-size:1.05rem}.station-sub{font-size:.82rem;color:var(--text-secondary)}.station-lines{display:flex;flex-wrap:wrap;gap:3px;margin-top:.4rem}.timetable-group{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:.75rem;overflow:hidden}.timetable-group-header{padding:.75rem 1rem;font-weight:600;font-size:.95rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.timetable-dir{padding:.6rem 1rem;border-bottom:1px solid var(--border);font-size:.9rem;background:var(--bg)}.timetable-dir-header{display:flex;justify-content:space-between;align-items:center}.timetable-dir-label{font-weight:600}.timetable-dir-platform{font-size:.8rem;color:var(--text-secondary);background:var(--surface);padding:.15rem .55rem;border-radius:100px;border:1px solid var(--border)}.timetable-dest{font-size:.85rem;color:var(--text-secondary);margin-bottom:.35rem;display:flex;align-items:center;gap:.4rem}.timetable-slots{display:flex;flex-wrap:wrap;gap:4px}.time-slot{display:inline-block;padding:2px 8px;font-size:.82rem;font-family:SF Mono,Cascadia Code,monospace;background:var(--bg);border-radius:4px;border:1px solid var(--border);cursor:default}.time-slot .trip-num{font-size:.65rem;color:var(--text-secondary);margin-left:4px}.fare-form{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.5rem}.fare-form-row{display:flex;gap:.75rem;align-items:flex-end}.fare-form-row .input-group{flex:1}.input-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:.3rem}.select-input{width:100%;padding:.55rem .75rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.9rem;font-family:inherit;background:var(--surface);outline:none}.select-input:focus{border-color:var(--primary)}.fare-leg{display:flex;align-items:center;gap:.75rem;padding:.75rem 0;border-bottom:1px solid var(--border)}.fare-leg:last-child{border-bottom:none}.fare-leg-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;flex-shrink:0}.fare-leg-icon.ride{background:var(--primary-light);color:var(--primary)}.fare-leg-icon.walk{background:#fef3c7;color:var(--orange)}.fare-leg-info{flex:1}.fare-leg-route{font-weight:600;font-size:.9rem}.fare-leg-detail{font-size:.8rem;color:var(--text-secondary)}.fare-leg-distance{font-size:.8rem;color:var(--text-secondary);margin-left:auto}.fare-summary{display:flex;gap:1rem;flex-wrap:wrap;margin-top:1rem}.fare-summary-item{flex:1;min-width:140px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:1rem;text-align:center}.fare-summary-item .value{font-size:1.5rem;font-weight:700;color:var(--primary)}.fare-summary-item .label{font-size:.8rem;color:var(--text-secondary);margin-top:.15rem}.hub-card .hub-name{font-weight:600;font-size:1rem}.hub-card .hub-meta{font-size:.82rem;color:var(--text-secondary);margin-top:.25rem}.line-dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:.3rem}.segment-header{font-size:.85rem;font-weight:600;color:var(--text-secondary);margin-bottom:.5rem;padding:.5rem 0;border-bottom:2px solid var(--border)}.line-station-item{display:flex;align-items:center;gap:.5rem;padding:.45rem 0;border-bottom:1px solid var(--border);font-size:.9rem}.line-station-item:last-child{border-bottom:none}.line-station-num{font-size:.75rem;font-weight:700;color:var(--text-secondary);min-width:36px}.station-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.5rem}.station-detail-grid .card h3{font-size:.95rem;margin-bottom:.75rem}.amenity-list{display:flex;flex-wrap:wrap;gap:.35rem}.amenity-tag{font-size:.75rem;padding:.2rem .55rem;background:var(--bg);border-radius:100px;border:1px solid var(--border)}.transfer-item{display:flex;justify-content:space-between;align-items:center;padding:.6rem 0;border-bottom:1px solid var(--border);font-size:.88rem}.transfer-item:last-child{border-bottom:none}.transfer-distance{font-size:.8rem;color:var(--text-secondary);background:var(--bg);padding:.15rem .55rem;border-radius:100px}.transfer-notes{font-size:.78rem;color:var(--text-secondary);margin-top:.25rem}.back-link{display:inline-flex;align-items:center;gap:.35rem;font-size:.88rem;margin-bottom:1rem}footer{text-align:center;padding:1.5rem;font-size:.8rem;color:var(--text-secondary);border-top:1px solid var(--border)}.hero-section{text-align:center;padding:2rem 1rem}.hero-section h1{font-size:2.25rem;font-weight:800;margin-bottom:.5rem}.hero-section p{color:var(--text-secondary);max-width:600px;margin:0 auto 1.5rem;font-size:1rem}.hero-search{max-width:500px;margin:0 auto;position:relative}.search-results{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);z-index:50;box-shadow:0 4px 12px #00000014}.search-result-item{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem;cursor:pointer;font-size:.9rem;transition:background .1s}.search-result-item:hover{background:var(--bg)}.search-result-item:first-child{border-radius:0 0 0 var(--radius)}.search-result-item:last-child{border-radius:0 0 var(--radius) 0}.no-results{padding:1rem;text-align:center;color:var(--text-secondary);font-size:.85rem}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-secondary)}.empty-state .empty-icon{font-size:3rem;margin-bottom:.5rem}.empty-state h3{margin-bottom:.25rem}.tabs{display:flex;border-bottom:2px solid var(--border);margin-bottom:1rem}.tab{padding:.5rem 1rem;font-size:.9rem;font-weight:500;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;color:var(--text-secondary);transition:all .15s;background:none;border-top:none;border-left:none;border-right:none;font-family:inherit}.tab:hover{color:var(--text)}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.time-filter{display:flex;gap:.5rem;align-items:center;margin-bottom:1rem;flex-wrap:wrap}.time-filter input{padding:.4rem .6rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.85rem;font-family:inherit;width:90px}.time-filter label{font-size:.85rem;font-weight:500;color:var(--text-secondary)}@media (max-width: 768px){.topbar nav a{font-size:.78rem;padding:.35rem .55rem}.grid-2,.grid-3,.grid-4,.station-detail-grid{grid-template-columns:1fr}.fare-form-row{flex-direction:column}.hero-section h1{font-size:1.6rem}.main-content{padding:1rem}.topbar{padding:0 .75rem}.stat-card .stat-value{font-size:1.4rem}}