:root {
  --bg: #f4f5f2;
  --surface: #ffffff;
  --text: #1c1f1a;
  --muted: #666b62;
  --border: #dfe2da;
  --brand: #14532d;
  --brand-text: #ffffff;
  --ok: #15803d;
  --ok-bg: #e7f6ec;
  --bad: #b91c1c;
  --bad-bg: #fdecec;
  --warn: #b45309;
  --warn-bg: #fdf3e2;
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121411;
    --surface: #1c1f1b;
    --text: #eef0ea;
    --muted: #a3a89d;
    --border: #2f332d;
    --brand: #22804a;
    --ok: #4ade80;
    --ok-bg: #12301d;
    --bad: #f87171;
    --bad-bg: #3a1616;
    --warn: #fbbf24;
    --warn-bg: #36280e;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, "Noto Sans Arabic", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  padding-top: max(14px, env(safe-area-inset-top));
  background: var(--brand);
  color: var(--brand-text);
}
.topbar h1 { margin: 0; font-size: 20px; }
.who { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.who .link { color: var(--brand-text); }

main { max-width: 520px; margin: 0 auto; padding: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
h2 { margin: 0 0 16px; font-size: 22px; }

label { display: block; margin-bottom: 14px; color: var(--muted); font-size: 15px; }
input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 14px;
  font: inherit;
  font-size: 18px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
}
input:focus { outline: 2px solid var(--brand); outline-offset: 1px; }

.btn {
  display: block;
  width: 100%;
  padding: 14px 18px;
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
}
.btn:disabled { opacity: .6; cursor: wait; }
.btn.primary { background: var(--brand); color: var(--brand-text); }
.btn.success { background: var(--ok); color: #fff; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); margin-top: 12px; }
.btn.big { padding: 22px; font-size: 21px; }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--brand); text-decoration: underline; cursor: pointer; }

.error { color: var(--bad); min-height: 1.5em; margin: 10px 0 0; font-size: 15px; }

.divider { display: flex; align-items: center; gap: 12px; margin: 22px 0 16px; color: var(--muted); font-size: 14px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.code-form { display: flex; gap: 10px; }
.code-form input { margin: 0; flex: 1; min-width: 0; text-align: center; letter-spacing: 3px; font-size: 22px; text-transform: uppercase; }
.code-form .btn { width: auto; }

.camera { position: relative; margin-bottom: 4px; }
.camera video { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 12px; background: #000; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}
.stats b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.stats span { color: var(--muted); font-size: 13px; }
.stats .link { font-size: 14px; }

.result { text-align: center; }
.result .badge {
  width: 84px; height: 84px; margin: 4px auto 12px;
  display: grid; place-items: center;
  border-radius: 50%;
  font-size: 44px; font-weight: 700;
}
.result.ok { border-color: var(--ok); }
.result.ok .badge { background: var(--ok-bg); color: var(--ok); }
.result.ok h2 { color: var(--ok); }
.result.bad { border-color: var(--bad); }
.result.bad .badge { background: var(--bad-bg); color: var(--bad); }
.result.bad h2 { color: var(--bad); }
.result.warn { border-color: var(--warn); }
.result.warn .badge { background: var(--warn-bg); color: var(--warn); }
.result.warn h2 { color: var(--warn); }
.result .code { margin: -8px 0 16px; color: var(--muted); letter-spacing: 3px; font-size: 18px; }

dl { margin: 0 0 18px; text-align: right; }
dl div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--border); }
dt { color: var(--muted); }
dd { margin: 0; font-weight: 600; }

@media (min-width: 700px) and (orientation: landscape) {
  .camera video { aspect-ratio: 4 / 3; }
}