/* ==========================================================================
   Responsive — desktop 1600/1440, tablet 768, mobile 390
   ========================================================================== */

@media (max-width: 1499px) {
  .ai-layout { grid-template-columns: 250px minmax(0, 1fr) 270px; }
  .fm-layout { grid-template-columns: 220px minmax(0, 1fr) 270px; }
  .app-search { width: 220px; }
  .nav-link { padding: 0 11px; }
}

@media (max-width: 1299px) {
  .nav-link { padding: 0 9px; font-size: 12.5px; gap: 6px; }
  .ai-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dash-row-2 { grid-template-columns: minmax(0, 1fr); }
  .hide-lg { display: none !important; }
}

@media (max-width: 1199px) {
  .dash-top { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .dash-kpis { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .ai-layout { grid-template-columns: 240px minmax(0, 1fr); }
  .ai-layout .ai-right { grid-column: 1 / -1; }
  .fm-layout { grid-template-columns: 220px minmax(0, 1fr); }
  .fm-layout .fm-right { grid-column: 1 / -1; }
  .fm-right .card-body { display: grid; grid-template-columns: 220px 1fr; gap: 20px; text-align: left; }
  .split-3 { grid-template-columns: 240px minmax(0, 1fr); }
  .split-3 > :last-child { grid-column: 1 / -1; }
  .hide-md { display: none !important; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- Tablet: horizontal menu becomes compact slide-down menu ---------- */
@media (max-width: 991px) {
  :root { --gutter: 18px; }
  .page-wrap { padding-top: calc(var(--header-h) + var(--gutter)); }
  .menu-toggle { display: inline-flex; margin-left: -10px; }
  .brand { margin-right: 6px; }
  .app-search { width: 200px; }
  .topnav {
    top: var(--header-h); height: auto; max-height: calc(100vh - var(--header-h)); overflow-y: auto;
    transform: translateY(-120%); visibility: hidden; transition: transform var(--t) var(--ease), visibility var(--t);
  }
  body.nav-open .topnav { transform: none; visibility: visible; }
  .nav-list { flex-direction: column; padding: 8px 0 14px; height: auto; }
  .nav-item { flex-direction: column; }
  .nav-link { height: 46px; padding: 0 6px; font-size: 14px; width: 100%; }
  .nav-link .chev { margin-left: auto; }
  .nav-item.open > .nav-link .chev { transform: rotate(180deg); }
  .nav-item.active > .nav-link::after { left: 0; right: auto; top: 10px; bottom: 10px; width: 3px; height: auto; border-radius: 3px; }
  .nav-dropdown { position: static; opacity: 1; visibility: visible; transform: none; display: none; background: rgba(255,255,255,.08); box-shadow: none; border-radius: var(--radius); margin: 0 0 6px; }
  .nav-item.open > .nav-dropdown { display: block; }
  .nav-dropdown a, .nav-dropdown button { color: rgba(255,255,255,.85); padding: 10px 18px; font-size: 13.5px; }
  .nav-dropdown a:hover, .nav-dropdown button:hover, .nav-dropdown .active { background: rgba(255,255,255,.1); color: #fff; }
  .nav-dropdown .ext { color: rgba(255,255,255,.6); }

  .dash-top { grid-template-columns: minmax(0, 1fr); }
  .dash-kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .dash-bottom { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dash-bottom > :last-child { grid-column: 1 / -1; }
  .cal-layout { grid-template-columns: minmax(0, 1fr); }
  .cal-side .cal-illus, .cal-side details.side-sec { display: none; }
  .cal-side .card-body { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; align-items: end; }
  .cal-side .btn-block { grid-column: 1 / -1; }
  .cal-side .form-group { margin: 0 !important; }
  .cal-side-hint { display: none; }
  .cal-legend { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; }
  .cal-legend button { width: auto; height: 26px; font-size: 11.5px; }
  .cal-legend button .cnt { display: none; }
  .fm-layout, .ai-layout, .split-2, .split-3, .split-detail { grid-template-columns: minmax(0, 1fr) !important; }
  .split-3 > :last-child { grid-column: auto; }
  .fm-layout .fm-right, .ai-layout .ai-right { grid-column: auto; }
  .fm-left .card-body { height: auto; }
  .fm-upgrade { display: none; }
  .ai-left { order: 2; }
  .ai-layout .chat-card { height: 70vh; }
  .row > [class*="col-"] { grid-column: span 12; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fm-folders { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- Mobile ---------- */
@media (max-width: 767px) {
  :root { --gutter: 14px; --card-pad: 16px; --header-h: 60px; }
  .app-search { display: none; }
  .hide-sm { display: none !important; }
  .brand span { font-size: 15px; }
  .brand small { display: none; }
  .topbar-btn { min-width: 38px; padding: 0 6px; }
  .user-btn { padding: 0 4px; }
  .page-title-box { margin-bottom: 14px; }
  .page-title-box .breadcrumb { display: none; }
  .dash-kpis, .dash-bottom { grid-template-columns: minmax(0, 1fr); }
  .dash-bottom > :last-child { grid-column: auto; }
  .welcome-bottom { grid-template-columns: minmax(0, 1fr); }
  .occ-card .occ-grid { grid-template-columns: minmax(0, 1fr); }
  .occ-card .occ-grid .text-center { order: -1; }
  .chart-card .card-head { flex-direction: column; align-items: flex-start; }
  .form-row, .form-row-3, .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
  .cal-toolbar { grid-template-columns: 1fr auto; }
  .cal-toolbar h2 { grid-column: 1 / -1; grid-row: 1; font-size: 15px; white-space: normal; }
  .cal-toolbar .tb-right { justify-content: flex-end; }
  .cal-filters .form-select { min-width: 0; width: 100%; }
  .cal-month .cm-body { grid-auto-rows: minmax(58px, auto); }
  .cm-cell .ev, .cm-cell .cm-more { display: none; }
  .cm-cell .cm-num { text-align: center; padding: 2px 0; }
  .cm-cell .cm-num .badge { display: none; }
  .cm-dots { display: flex; }
  .cal-month .cm-head div { font-size: 11px; padding: 6px 2px; }
  .cal-list-row { grid-template-columns: 1fr auto; gap: 4px 10px; }
  .cal-list-row .dotc { display: none; }
  .cal-list-row > span:first-child { grid-column: 1 / -1; font-size: 12px; }
  .fm-folders { grid-template-columns: minmax(0, 1fr); }
  .fm-center-head .search-pill { width: 100%; margin-left: 0; }
  .fm-right .card-body { grid-template-columns: minmax(0, 1fr); text-align: center; }
  .modal-backdrop { padding: 0; align-items: stretch; }
  .modal { max-width: none !important; max-height: 100vh; border-radius: 0; min-height: 100vh; }
  .drawer { width: 100% !important; }
  .steps .step { font-size: 0; gap: 0; justify-content: center; }
  .steps .step .num { font-size: 11.5px; }
  .steps .step.active { font-size: 12px; gap: 6px; }
  .kv { grid-template-columns: 110px minmax(0, 1fr); }
  .msg { max-width: 100%; }
  .ai-layout .chat-card { height: calc(100vh - var(--header-h) - 60px); min-height: 480px; }
  .ai-cards { grid-template-columns: minmax(0, 1fr); }
  .toast { width: auto; }
  .toast-stack { left: 12px; right: 12px; bottom: 12px; }
  .table th, .table td { padding: 9px 10px; }
  .hide-xs { display: none !important; }
  .card-head > * { max-width: 100%; }
  .card-head .d-flex { flex-wrap: wrap; }
  .input-icon[style], .card-head .form-select[style] { width: 100% !important; max-width: 100% !important; }
  .grid-auto { grid-template-columns: minmax(0, 1fr) !important; }
  .footer .container { flex-direction: column; gap: 4px; }
  .btn-group > .btn { padding: 0 9px; }
  .notif-menu { width: calc(100vw - 24px); right: -60px; }
  .apps-menu { width: calc(100vw - 24px); }
}
@media (max-width: 420px) {
  .cal-legend button { font-size: 11px; padding: 0 8px; }
  .brand span { display: none; }
}

@media print {
  .topbar, .topnav, .footer, .toast-stack { display: none !important; }
  .page-wrap { padding-top: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}