*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #4A90D9;--primary-dark: #357ABD;--primary-light: #E8F2FC;--bg: #F5F7FA;--surface: #FFFFFF;--text: #1A2332;--text-secondary: #6B7B8D;--border: #E1E8ED;--danger: #E74C3C;--danger-light: #FDECEA;--success: #27AE60;--warning: #F39C12;--radius: 10px;--shadow-sm: 0 1px 3px rgba(0,0,0,.06);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--shadow-lg: 0 10px 30px rgba(0,0,0,.12)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica 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textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.form-group .hint{display:block;margin-top:4px;font-size:12px;color:var(--text-secondary)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-row.three{grid-template-columns:1fr 1fr 1fr}.error-message{background:var(--danger-light);color:var(--danger);padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:16px}.btn{padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;display:inline-flex;align-items:center;gap:6px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:var(--surface);color:var(--text);border:2px solid var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg);color:var(--text)}.btn-danger{background:var(--danger-light);color:var(--danger)}.btn-danger:hover:not(:disabled){background:var(--danger);color:#fff}.btn-block{width:100%}.btn-sm{padding:6px 14px;font-size:13px}.app-view{min-height:100vh}.app-header{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:10px}.header-left .logo{font-size:24px}.header-left h1{font-size:18px;font-weight:700}.header-right{display:flex;align-items:center;gap:12px}.user-badge{font-size:13px;color:var(--text-secondary);background:var(--bg);padding:4px 12px;border-radius:20px}.tabs{display:flex;gap:4px;padding:0 24px;background:var(--surface);border-bottom:1px solid var(--border)}.tab{padding:12px 20px;border:none;background:transparent;font-size:14px;font-weight:600;color:var(--text-secondary);cursor:pointer;border-bottom:3px solid transparent;transition:all .2s;font-family:inherit}.tab:hover{color:var(--text)}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.app-content{padding:24px;max-width:1400px;margin:0 auto}.tab-content{display:none}.tab-content.active{display:block}.card{background:var(--surface);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);margin-bottom:20px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-header 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16px;background:var(--bg);border-radius:8px;transition:background .2s}.trip-list-item:hover{background:var(--primary-light)}.trip-list-info{display:flex;flex-direction:column}.trip-list-route{font-weight:600;font-size:14px}.trip-list-date{font-size:12px;color:var(--text-secondary)}.trip-list-cost{font-weight:700;color:var(--primary);font-size:15px}@media (max-width: 768px){.form-row{grid-template-columns:1fr}.filter-bar{flex-direction:column;align-items:stretch}.stats-grid{grid-template-columns:1fr 1fr}.app-content{padding:16px}.tabs{padding:0 12px}.tab{padding:10px 14px;font-size:13px}.trip-table{font-size:12px}.app-header{padding:0 12px}.header-left h1{font-size:16px}}@media (max-width: 480px){.stats-grid{grid-template-columns:1fr}.login-card{padding:28px 20px}}