:root {
  color-scheme: light dark;
  --bg: #0b1220;
  --bg-elev: #121a2b;
  --text: #e6ebf5;
  --muted: #9aa6c0;
  --primary: #5b8cff;
  --primary-600: #3b6ef0;
  --success: #2ecc71;
  --danger: #ff5b6e;
  --border: #223150;
  --card: #0f1728;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fc;
    --bg-elev: #ffffff;
    --text: #0b1220;
    --muted: #5b6475;
    --primary: #2b5bff;
    --primary-600: #234bd9;
    --success: #1fb671;
    --danger: #e43f5a;
    --border: #e6e9f0;
    --card: #ffffff;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 80% -10%, rgba(91,140,255,0.25), transparent 60%), var(--bg);
  color: var(--text);
}

.container { max-width: 960px; margin: 0 auto; padding: 16px; }

.appbar {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(180%) blur(10px);
  background: color-mix(in oklab, var(--bg-elev) 80%, transparent);
  border-bottom: 1px solid var(--border);
}
.appbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; }
.brand { font-weight: 700; letter-spacing: 0.2px; }

.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05), 0 8px 30px rgba(0,0,0,0.08);
}

h1 { margin: 12px 0 8px; font-size: 28px; }
h2 { margin: 10px 0 8px; font-size: 20px; color: var(--muted); font-weight: 600; }
p.muted { color: var(--muted); }

label { display: block; margin-bottom: 10px; font-weight: 600; }
.field { margin: 10px 0 14px; }
input, select {
  appearance: none;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  width: 100%;
  outline: none;
}
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary) 30%, transparent); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; border: 1px solid transparent;
  padding: 12px 16px; border-radius: 12px;
  font-weight: 700; cursor: pointer; text-decoration: none;
  transition: transform .02s ease, background .2s ease, border-color .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(180deg, var(--primary), var(--primary-600)); color: #fff; }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-danger { background: linear-gradient(180deg, var(--danger), #d43b4f); color: #fff; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.pill { display: inline-flex; align-items: center; gap: 6px; padding: 8px 10px; border-radius: 999px; background: var(--bg-elev); border: 1px solid var(--border); }
.price { font-variant-numeric: tabular-nums; }

.items { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.item {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
  cursor: pointer;
}
.item:hover { border-color: var(--primary); }
.item .qty { display: inline-block; min-width: 28px; padding: 2px 8px; border-radius: 999px; background: var(--primary); color: #fff; margin-left: 6px; font-weight: 700; }

.section { margin: 16px 0; }
.sticky-footer { position: sticky; bottom: 0; padding: 12px 16px; background: color-mix(in oklab, var(--bg-elev) 92%, transparent); border-top: 1px solid var(--border); backdrop-filter: blur(8px); }
.total { font-size: 18px; font-weight: 700; }

video { width: 100%; max-height: 40vh; background: #000; border-radius: 12px; }

.qr { display: grid; place-items: center; }
.qr img { max-width: 280px; width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--border); }

small.hint { color: var(--muted); }