*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { font-family: Onest, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #f0f4f8; min-height: 100vh; padding: 20px 16px 40px; line-height: 1.6; color: #1a1a1a; }
    .container { width: 100%; max-width: 860px; margin: 0 auto; }
    .card { background: #fff; border-radius: 16px; box-shadow: 0 10px 40px rgba(0,0,0,.10); padding: 28px 32px; margin-bottom: 20px; }
    .page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 0; }
    .page-title { font-size: 20px; font-weight: 700; }
    .page-title span { color: #2aa6fb; }
    .page-sub { font-size: 13px; color: #888; margin-top: 2px; }
    .section-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
    .section-title { font-size: 17px; font-weight: 700; }
    .filter-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
    .filter-btn { padding: 5px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; border: 1.5px solid #e1e5e9; background: #fff; color: #555; cursor: pointer; font-family: inherit; transition: all .15s; }
    .filter-btn.active { border-color: #2aa6fb; background: #e0f2fe; color: #0369a1; }
    .filter-btn:hover:not(.active) { border-color: #2aa6fb; }
    .request-list { display: flex; flex-direction: column; gap: 10px; }
    .request-item { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border: 1.5px solid #e1e5e9; border-radius: 12px; gap: 12px; cursor: pointer; transition: border-color .15s, background .15s; }
    .request-item:hover { border-color: #2aa6fb; background: #f7fbff; }
    .request-item.unread { border-left: 4px solid #2aa6fb; }
    .request-item-info { flex: 1; min-width: 0; }
    .request-route { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .request-meta { font-size: 12px; color: #888; margin-top: 3px; }
    .request-status { display: flex; flex-direction: column; align-items: flex-end; gap: 5px; flex-shrink: 0; }
    .badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; white-space: nowrap; }
    .badge-open    { background: #fef9c3; color: #854d0e; }
    .badge-answered  { background: #dcfce7; color: #166534; }
    .badge-confirmed { background: #dcfce7; color: #166534; }
    .badge-declined  { background: #fee2e2; color: #b91c1c; }
    .badge-need-info { background: #fef9c3; color: #92400e; }
    .badge-failed  { background: #fee2e2; color: #b91c1c; }
    .badge-inactive{ background: #f1f5f9; color: #64748b; }
    .fare-tag { font-size: 12px; font-weight: 600; color: #2aa6fb; }
    .detail-back { background: none; border: none; font-size: 14px; color: #2aa6fb; cursor: pointer; font-family: inherit; font-weight: 600; padding: 0; }
    .detail-back:hover { text-decoration: underline; }
    .detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
    @media (max-width: 540px) { .detail-grid { grid-template-columns: 1fr; } }
    .detail-section { border: 1px solid #e1e5e9; border-radius: 10px; padding: 16px; margin-bottom: 14px; }
    .detail-section-title { font-size: 11px; font-weight: 700; color: #888; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px; }
    .detail-field { margin-bottom: 12px; }
    .detail-label { font-size: 11px; font-weight: 600; color: #888; text-transform: uppercase; letter-spacing: .4px; margin-bottom: 3px; }
    .detail-value { font-size: 14px; color: #1a1a1a; word-break: break-word; }
    .detail-value.mono { font-family: monospace; font-size: 13px; }
    .non-binding-notice { background: #f0f9ff; border: 1px solid #bae6fd; border-radius: 8px; padding: 10px 14px; font-size: 12px; color: #0369a1; margin-bottom: 14px; }
    .response-box { background: #f7fdf7; border: 1.5px solid #86efac; border-radius: 10px; padding: 14px 16px; margin-bottom: 14px; }
    .response-box-title { font-size: 12px; font-weight: 700; color: #166534; text-transform: uppercase; letter-spacing: .4px; margin-bottom: 8px; }
    .response-action-label { font-size: 15px; font-weight: 600; color: #166534; }
    .response-note { font-size: 13px; color: #444; margin-top: 6px; }
    .unanswered-box { background: #fffbeb; border: 1.5px solid #fde68a; border-radius: 10px; padding: 14px 16px; margin-bottom: 14px; font-size: 13px; color: #92400e; }
    .btn { padding: 9px 20px; border-radius: 10px; font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; border: none; transition: all .2s; }
    .btn-secondary { background: #f0f4f8; color: #333; }
    .btn-secondary:hover { background: #e1e5e9; }
    .btn-sm { padding: 6px 14px; font-size: 13px; }
    .alert { border-radius: 10px; padding: 12px 16px; font-size: 13px; margin-bottom: 16px; }
    .alert-error { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
    .empty-state { text-align: center; padding: 48px 20px; color: #888; }
    .empty-icon { font-size: 36px; margin-bottom: 12px; }
    .empty-msg { font-size: 15px; }
    .spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid #e1e5e9; border-top-color: #2aa6fb; border-radius: 50%; animation: spin .6s linear infinite; vertical-align: middle; margin-right: 6px; }
    @keyframes spin { to { transform: rotate(360deg); } }
    .hidden { display: none !important; }
    /* Auth error full-page */
    .auth-error-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
    .auth-error-card { background: #fff; border-radius: 16px; box-shadow: 0 10px 40px rgba(0,0,0,.10); padding: 40px 36px; width: 100%; max-width: 420px; text-align: center; }
    .auth-error-icon { font-size: 40px; margin-bottom: 14px; }
    .auth-error-title { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
    .auth-error-msg { font-size: 14px; color: #666; }