:root {
  --surface: #1B1917;
  --panel: #252220;
  --tile: #2E2A27;
  --tile-hover: #383330;
  --border: #3A352F;
  --text: #F5F1E8;
  --text-muted: #A79E90;
  --accent: #F2A93B;
  --accent-ink: #241C0B;
  --success: #4F9E82;
  --danger: #D6534A;
  --radius: 10px;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-display: 'Barlow Condensed', sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-ui);
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior: none;
  user-select: none;
}
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
a { color: inherit; }

/* ---------- Login ---------- */
.login-screen {
  height: 100vh; display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 28px;
}
.login-screen h1 {
  font-family: var(--font-display); font-weight: 700; font-size: 2.4rem;
  letter-spacing: 0.5px; margin: 0;
}
.pin-display {
  display: flex; gap: 14px;
}
.pin-dot {
  width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--border);
  background: transparent; transition: background .15s, border-color .15s;
}
.pin-dot.filled { background: var(--accent); border-color: var(--accent); }
.pin-pad {
  display: grid; grid-template-columns: repeat(3, 84px); gap: 14px;
}
.pin-pad button {
  width: 84px; height: 84px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); font-size: 1.6rem; font-weight: 600;
}
.pin-pad button:active { background: var(--tile-hover); }
.pin-pad button.wide { grid-column: span 1; font-size: 1rem; color: var(--text-muted); }
.login-error { color: var(--danger); min-height: 1.2em; font-weight: 600; }

/* ---------- POS shell ---------- */
.pos-shell {
  height: 100vh; display: grid;
  grid-template-columns: 96px 1fr 340px;
  grid-template-rows: 64px 1fr;
}
.topbar {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; background: var(--panel); border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  position: relative; z-index: 5;
}
.topbar .brand { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; }
.topbar .staff-tag { color: var(--text-muted); font-size: .9rem; }
.topbar a.logout { color: var(--text-muted); text-decoration: none; font-size: .85rem; }

.category-rail {
  background: var(--panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; overflow-y: auto; padding: 10px 0;
}
.category-tab {
  writing-mode: horizontal-tb;
  padding: 16px 6px; text-align: center; border: none; background: transparent;
  color: var(--text-muted); font-family: var(--font-display); font-weight: 600;
  font-size: 1rem; border-left: 3px solid transparent; letter-spacing: .3px;
}
.category-tab.active { color: var(--accent); border-left-color: var(--accent); background: var(--tile); }

.menu-grid {
  overflow-y: auto; padding: 18px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px; align-content: start;
}
.item-tile {
  background: var(--tile); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px; text-align: left; color: var(--text); min-height: 96px;
  display: flex; flex-direction: column; justify-content: space-between;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  transition: background .12s, transform .08s, box-shadow .12s;
}
.item-tile .item-photo {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; margin-bottom: 8px;
}
.item-tile:active { transform: scale(.96); background: var(--tile-hover); box-shadow: 0 1px 1px rgba(0,0,0,.15); }
.item-tile .name { font-weight: 600; font-size: 1rem; line-height: 1.25; }
.item-tile .price { color: var(--accent); font-weight: 700; margin-top: 8px; }
.item-tile[disabled] { opacity: .35; }

/* ---------- Order ticket panel ---------- */
.order-panel {
  background: var(--panel); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; position: relative;
  box-shadow: -4px 0 14px rgba(0,0,0,.2);
}
.order-panel::before {
  content: ''; display: block; height: 10px; margin: 0 12px;
  background-image: radial-gradient(circle, var(--surface) 4px, transparent 4.5px);
  background-size: 16px 10px; background-repeat: repeat-x; background-position: top center;
}
.order-header { padding: 14px 18px 6px; }
.order-header .order-no { font-family: var(--font-display); font-size: 1.1rem; color: var(--text-muted); }
.order-type-toggle { display: flex; gap: 8px; margin-top: 8px; }
.order-type-toggle button {
  flex: 1; padding: 8px; border-radius: 8px; border: 1px solid var(--border);
  background: transparent; color: var(--text-muted); font-weight: 600; font-size: .85rem;
}
.order-type-toggle button.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.table-input {
  margin-top: 8px; width: 100%; padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}

.order-items { flex: 1; overflow-y: auto; padding: 8px 18px; }
.order-line { padding: 10px 0; border-bottom: 1px dashed var(--border); }
.order-line .row1 { display: flex; justify-content: space-between; font-weight: 600; }
.qty-stepper { display: flex; align-items: center; gap: 10px; margin-top: 6px; }
.qty-stepper button {
  width: 28px; height: 28px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--tile); color: var(--text); font-weight: 700;
}
.qty-stepper .remove { margin-left: auto; color: var(--danger); border: none; background: none; font-size: .8rem; font-weight: 600; }
.empty-order { color: var(--text-muted); text-align: center; padding: 40px 10px; font-size: .9rem; }

.order-totals { padding: 12px 18px; border-top: 1px dashed var(--border); font-variant-numeric: tabular-nums; }
.order-totals .row { display: flex; justify-content: space-between; padding: 3px 0; color: var(--text-muted); }
.order-totals .row.total { color: var(--text); font-weight: 800; font-size: 1.2rem; padding-top: 8px; }

.order-actions { padding: 14px 18px 18px; display: flex; flex-direction: column; gap: 10px; }
.btn {
  border: none; border-radius: 10px; padding: 14px; font-weight: 700; font-size: 1rem;
  transition: transform .08s, opacity .1s, filter .1s;
}
.btn:active { transform: scale(.97); filter: brightness(.92); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-secondary { background: var(--tile); color: var(--text); border: 1px solid var(--border); }
.btn-cash { background: var(--success); color: #0E241C; }
.btn-card { background: var(--tile); color: var(--text); border: 1px solid var(--border); }
.btn:disabled { opacity: .4; transform: none; }
.pay-row { display: flex; gap: 10px; }
.pay-row .btn { flex: 1; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--tile); border: 1px solid var(--border); padding: 12px 20px;
  border-radius: 10px; font-size: .9rem; font-weight: 500; opacity: 0; pointer-events: none;
  box-shadow: 0 6px 20px rgba(0,0,0,.35);
  transition: opacity .2s, transform .2s;
  z-index: 50; max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Admin ---------- */
.admin-shell { display: flex; min-height: 100vh; }
.admin-nav {
  width: 200px; background: var(--panel); border-right: 1px solid var(--border);
  padding: 18px 0; flex-shrink: 0;
}
.admin-nav .brand { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; padding: 0 18px 18px; }
.admin-nav a {
  display: block; padding: 12px 18px; color: var(--text-muted); text-decoration: none; font-weight: 600; font-size: .9rem;
}
.admin-nav a.active, .admin-nav a:hover { color: var(--accent); background: var(--tile); }
.admin-main { flex: 1; padding: 28px 34px; overflow-y: auto; user-select: text; }
.admin-main h1 { font-family: var(--font-display); font-size: 1.8rem; margin: 0 0 20px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; max-width: 420px; }
.form-row label { font-size: .85rem; color: var(--text-muted); }
.form-row input, .form-row select, .form-row textarea {
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
}
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.stat .label { color: var(--text-muted); font-size: .8rem; }
.stat .value { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--accent); }
.badge { padding: 2px 9px; border-radius: 20px; font-size: .75rem; font-weight: 700; }
.badge.open { background: #3A352F; color: var(--text-muted); }
.badge.sent_to_kitchen { background: #4A3A1E; color: var(--accent); }
.badge.paid { background: #1E3A30; color: var(--success); }
.badge.voided { background: #3A1E1E; color: var(--danger); }

/* ---------- Responsive: tuned for tablets first, phones second ---------- */

/* Smaller tablets / narrow landscape: trim the order panel a little */
@media (max-width: 1180px) {
  .pos-shell { grid-template-columns: 88px 1fr 300px; }
}

/* Tablet portrait and small landscape (most Android/iPad tablets in
   portrait fall in this range): category rail becomes a horizontal
   scrolling strip along the top instead of a cramped vertical column —
   far easier to read and tap with a thumb. */
@media (max-width: 920px) {
  .pos-shell {
    grid-template-columns: 1fr;
    grid-template-rows: 60px auto 1fr auto;
  }
  .category-rail {
    flex-direction: row; overflow-x: auto; overflow-y: hidden;
    border-right: none; border-bottom: 1px solid var(--border);
    padding: 8px 10px; gap: 4px;
    -webkit-overflow-scrolling: touch;
  }
  .category-tab {
    flex: 0 0 auto; white-space: nowrap;
    border-left: none; border-bottom: 3px solid transparent;
    border-radius: 8px 8px 0 0;
    padding: 10px 18px;
  }
  .category-tab.active { border-left-color: transparent; border-bottom-color: var(--accent); }
  .menu-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    padding: 14px;
  }
  .order-panel {
    grid-column: 1 / -1; border-left: none; border-top: 1px solid var(--border);
    box-shadow: 0 -4px 14px rgba(0,0,0,.2);
    max-height: 44vh;
  }
}

/* Phones */
@media (max-width: 520px) {
  .topbar .brand { font-size: 1.1rem; }
  .topbar .staff-tag { display: none; } /* free up space; name still visible via Admin/Sign out links */
  .menu-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 12px; }
  .item-tile { min-height: 84px; }
  .pin-pad { grid-template-columns: repeat(3, 72px); gap: 12px; }
  .pin-pad button { width: 72px; height: 72px; font-size: 1.4rem; }
  .login-screen h1 { font-size: 1.9rem; }
  .order-panel { max-height: 48vh; }
}

/* Admin panel: stack the sidebar above content on narrow screens */
@media (max-width: 760px) {
  .admin-shell { flex-direction: column; }
  .admin-nav {
    width: 100%; display: flex; flex-wrap: wrap; align-items: center;
    padding: 10px 14px; gap: 2px;
  }
  .admin-nav .brand { padding: 0 10px 0 0; }
  .admin-nav a { padding: 8px 12px; border-radius: 8px; }
  .admin-main { padding: 18px 16px; }
}