/* The central panel — dense, legible, RTL. Semantic tokens; light and dark by the system's preference. */
:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --text: #0f172a;
  --muted: #475569;
  --border: #cbd5e1;
  --primary: #1e293b;
  --on-primary: #ffffff;
  --accent: #15803d;
  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --ok-bg: #f0fdf4;
  --warn-bg: #fffbeb;
  --ring: #2563eb;
  --radius: 8px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --surface: #1b2336;
    --surface-2: #272f42;
    --text: #f8fafc;
    --muted: #94a3b8;
    --border: #475569;
    --primary: #e2e8f0;
    --on-primary: #0f172a;
    --accent: #22c55e;
    --danger: #f87171;
    --danger-bg: #3b1212;
    --ok-bg: #0f2e1d;
    --warn-bg: #3a2c0a;
    --ring: #93c5fd;
  }
}
* { box-sizing: border-box; }
/* The page shows and hides whole stages by the hidden attribute — no layout rule may override it. */
[hidden] { display: none !important; }
html { font-size: 16px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Noto Naskh Arabic", "Noto Sans Arabic", Tahoma, system-ui, sans-serif;
  line-height: 1.5;
}
/* Visually hidden until focused — clipped, never pushed off-page (an offset would widen an RTL page). */
.skip { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip:focus { position: fixed; width: auto; height: auto; clip-path: none; inset-inline-start: var(--space-3); top: var(--space-3); background: var(--surface); padding: var(--space-2); z-index: 10; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 2px; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap;
  padding: var(--space-3) var(--space-4); background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 600; flex-wrap: wrap; }
.who { display: flex; align-items: center; gap: var(--space-3); font-size: 0.9rem; overflow-wrap: anywhere; }
main { padding: var(--space-4); max-width: 1280px; margin: 0 auto; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); margin-bottom: var(--space-4); }
.narrow { max-width: 440px; margin-inline: auto; }
h1 { font-size: 1.35rem; margin: 0 0 var(--space-3); }
h2 { font-size: 1.1rem; margin: 0 0 var(--space-3); }
h3 { font-size: 1rem; margin: var(--space-4) 0 var(--space-2); }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
label { display: block; margin: var(--space-3) 0 var(--space-1); font-weight: 600; font-size: 0.925rem; }
input, select, textarea {
  width: 100%; min-height: 44px; padding: var(--space-2) var(--space-3); font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
}
input[dir="ltr"] { text-align: left; }
button {
  min-height: 44px; padding: var(--space-2) var(--space-4); font: inherit; font-weight: 600; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text); white-space: nowrap;
  transition: background-color 150ms ease, border-color 150ms ease;
}
button:hover { border-color: var(--primary); }
button.primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); margin-top: var(--space-3); }
button.secondary { background: var(--surface); }
button.ghost { background: transparent; }
button.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button[disabled] { opacity: 0.55; cursor: not-allowed; }
.field-error { color: var(--danger); min-height: 1.25em; margin: var(--space-1) 0 0; font-size: 0.875rem; }
.status { max-width: 1280px; margin: var(--space-3) auto 0; padding: 0 var(--space-4); }
.status > div { padding: var(--space-2) var(--space-3); border-radius: 6px; border: 1px solid var(--border); }
.status .ok { background: var(--ok-bg); }
.status .refused { background: var(--danger-bg); border-color: var(--danger); }
.status .busy { background: var(--warn-bg); }
.secret { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 1.1rem; letter-spacing: 0.08em; word-break: break-all; background: var(--surface-2); padding: var(--space-2); border-radius: 6px; }
.tabs { display: flex; gap: var(--space-1); flex-wrap: wrap; border-bottom: 1px solid var(--border); margin-bottom: var(--space-4); }
.tabs button { border-radius: 6px 6px 0 0; border-bottom: none; background: transparent; }
.tabs button[aria-selected="true"] { background: var(--surface); border-color: var(--border); color: var(--text); box-shadow: inset 0 -3px 0 var(--accent); }
.grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.row { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 160px; min-width: 0; }
.row > button { flex: 0 0 auto; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
caption { text-align: start; padding: var(--space-2); font-weight: 600; }
th, td { padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--border); text-align: start; vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; white-space: nowrap; }
td.num, th.num { text-align: end; font-variant-numeric: tabular-nums; direction: ltr; }
.badge { display: inline-block; padding: 0 var(--space-2); border-radius: 999px; border: 1px solid var(--border); font-size: 0.8rem; white-space: nowrap; }
.badge.warn { background: var(--warn-bg); }
.badge.ok { background: var(--ok-bg); }
.badge.bad { background: var(--danger-bg); color: var(--danger); }
/* A long badge may wrap on a narrow screen rather than widen the page. */
.badge.wrap { white-space: normal; max-width: 100%; }
/* PHASE 5 · STAGE 4 — an identifier (an employee code) stays whole; its table scrolls instead. */
.code { white-space: nowrap; }
.lines .line { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: var(--space-2); margin-bottom: var(--space-2); }
.foot { text-align: center; padding: var(--space-5) var(--space-4); }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media (max-width: 480px) { main { padding: var(--space-2); } .card { padding: var(--space-3); } }

/* WAVE 14 — a season's branches, products and categories: checkbox groups with 44px targets */
.checks { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3); border: 1px solid var(--border); border-radius: 6px; padding: var(--space-2) var(--space-3); margin: 0; max-height: 14rem; overflow-y: auto; }
.checks .check { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 44px; margin: 0; font-weight: 400; }
.checks input[type="checkbox"] { width: 1.25rem; min-height: 1.25rem; height: 1.25rem; }

/* PHASE 5 · WAVE 13 — a special order's design, shown within its card. */
.design { max-width: 100%; height: auto; border: 1px solid var(--border); border-radius: var(--radius); }

/* OI-070 — the authenticator's QR code: a light square whatever the theme, so a camera reads it. */
.qr { display: block; width: 200px; height: 200px; max-width: 100%; background: #fff; padding: var(--space-2); border: 1px solid var(--border); border-radius: var(--radius); image-rendering: pixelated; }