/* Adapt the existing design, never replace desktop layouts or print styles. */
[hidden] { display: none !important; }
.mobile-nav-toggle, .mobile-nav-backdrop { display: none; }
.web-sync-bar, .pwa-update-bar { padding: 7px 28px; display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-shrink: 0; background: var(--card-bg); border-bottom: 1px solid var(--border-color); color: var(--text-muted); font-size: 12px; }
.web-sync-bar .btn, .pwa-update-bar .btn { padding: 5px 10px; font-size: 12px; }
.web-account-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
body.web-saving #main-content, body.web-saving .modal-backdrop, body.web-saving .sidebar-nav { pointer-events: none; opacity: .75; }
@media screen and (max-width: 900px) {
    html, body { height: 100%; }
    .dashboard { height: 100vh; height: 100dvh; }
    .content-area { width: 100%; }
    .sidebar { position: fixed; inset-block: 0; inset-inline-start: 0; width: min(285px, 85vw); transform: translateX(-110%); transition: transform .2s; z-index: 1200; padding-top: env(safe-area-inset-top); padding-bottom: env(safe-area-inset-bottom); }
    html[dir="rtl"] .sidebar { transform: translateX(110%); }
    body.mobile-nav-open .sidebar { transform: translateX(0); }
    .mobile-nav-toggle { display: inline-flex; flex-shrink: 0; min-height: 44px; min-width: 44px; align-items: center; justify-content: center; }
    body.mobile-nav-open .mobile-nav-backdrop { display: block; position: fixed; inset: 0; background: var(--modal-backdrop); z-index: 1190; border: 0; }
    .top-bar { height: auto; min-height: 65px; padding: calc(8px + env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left)); flex-wrap: wrap; gap: 6px; }
    .top-bar-left { gap: 8px; min-width: 0; }
    .top-bar-right { flex-wrap: wrap; gap: 7px; }
    .page-title { font-size: 16px; }
    .current-time { display: none; }
    .lang-switcher { padding: 3px; }
    .lang-btn { padding: 6px 8px; min-height: 36px; }
    #main-content { padding: 16px max(12px, env(safe-area-inset-right)) calc(32px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); }
    .card { padding: 14px; }
    .view-header, .filter-bar { flex-wrap: wrap; gap: 12px; }
    .view-header > *, .filter-bar > * { min-width: 0; }
    .view-header h2 { font-size: 19px; }
    .form-grid { grid-template-columns: 1fr; }
    input, select, textarea, .form-control { font-size: 16px; } /* prevent iOS focus zoom */
    .form-control { max-width: 100%; min-height: 44px; }
    .btn, .btn-icon { min-height: 44px; }
    .btn-icon { min-width: 44px; }
    .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .stat-card { padding: 12px; min-width: 0; }
    .stat-value { overflow-wrap: anywhere; }
    .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
    .data-table { min-width: 620px; }
    .healthcare-table { min-width: 880px; }
    .excel-pos-card, .excel-top-bar, .excel-footer-grid, .pos-main-grid { min-width: 0; max-width: 100%; }
    .excel-top-bar { flex-wrap: wrap; gap: 12px; }
    .excel-top-bar > * { min-width: 0; max-width: 100%; }
    .excel-footer-grid, .pos-main-grid { grid-template-columns: 1fr; }
    .excel-client-dropdown-panel { min-width: 0; max-width: calc(100vw - 48px); width: 100%; }
    .searchable-dropdown { max-width: calc(100vw - 48px); }
    .modal-backdrop { padding: max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); }
    .modal-content { max-width: 100% !important; max-height: calc(100dvh - 24px); }
    .modal-body { padding: 14px; }
    .modal-header, .modal-footer { padding: 12px 14px; }
    .modal-footer { flex-wrap: wrap; }
    .modal-header h3 { font-size: 16px; }
    .web-sync-bar, .pwa-update-bar, .healthcare-reminder-banner { padding: 8px 12px; flex-wrap: wrap; }
    .invoice-print-card .data-table { min-width: 0; }
    .audit-toolbar { flex-direction: column; align-items: stretch; }
    .audit-filter-search, .audit-toolbar > .form-control { min-width: 0; width: 100%; }
}
@media screen and (max-width: 480px) {
    .top-bar-left, .top-bar-right { width: 100%; }
    .top-bar-right { justify-content: flex-end; }
    .healthcare-summary { gap: 8px; }
    .healthcare-summary-item { padding: 10px; }
    .stats-grid { grid-template-columns: 1fr; }
    .excel-pay-toggles { flex-wrap: wrap; }
}
@media print { .web-sync-bar, .pwa-update-bar, .mobile-nav-toggle, .mobile-nav-backdrop, #pwa-dialog { display: none !important; } }