/* ==========================================================================
    responsive.css  —  Responsive layout (tablet / mobile sidebar collapse)
    ========================================================================== */

/* Tablet & below */
@media (max-width: 1024px) {
    .content-card { padding: 22px; }
    .content { padding: 24px 20px; }
    .chart-box { height: 320px; }
}

/* Mobile: collapse sidebar into off-canvas drawer */
@media (max-width: 768px) {
    :root { --topbar-h: 60px; }

    .mobile-toggle { display: inline-flex; }
    .sidebar-close { display: block; }

    .topbar {
        left: 0;
        padding: 0 16px;
    }

    .sidebar {
        transform: translateX(-100%);
        width: 260px;
        z-index: 1100;
    }
    .sidebar.open { transform: translateX(0); }

    .content {
        margin-left: 0;
        padding: 16px 12px 24px;
    }
    .app-footer { margin-left: 0; }

    .card,
    .content-card { padding: 18px; }
    .page-header { flex-direction: column; align-items: flex-start; }
    .page-actions { justify-content: flex-start; width: 100%; }
    .title,
    .page-title { font-size: 22px; }
    .subtitle,
    .page-subtitle { font-size: 15px; }

    .quick-grid { grid-template-columns: 1fr; }
    .form-group { flex-direction: column; align-items: stretch; }
    .form-group .btn,
    .form-group .back-btn { width: 100%; text-align: center; }
    .results-table th, .results-table td { font-size: 12px; padding: 8px 6px; }
    .regno-actions .btn { display: block; margin: 8px 0; width: 100%; }
    .result-type-hint th, .result-type-hint td { padding: 6px 8px; font-size: 11px; }
    .topbar .datetime { display: none; }
}

@media (max-width: 480px) {
    .topbar .page-title-nav { font-size: 15px; }
    .topbar .admin-name,
    .topbar .admin-role { display: none; }
    .content-card { padding: 16px; }
}