:root {
  --paper: #f6f1e7;
  --card: #fffdf8;
  --ink: #2b2622;
  --muted: #7b7066;
  --line: #e2d8c8;
  --accent: #c2562f;
  --accent-ink: #fff;
  --ok: #3f7a4a;
  --error: #b3261e;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1d1a17; --card: #26221e; --ink: #f2ebe0; --muted: #a89c8e;
    --line: #3a342d; --accent: #e07a52; --accent-ink: #1d1a17; --ok: #7fbf8a; --error: #ff8a80;
  }
}
:root[data-theme="dark"] {
  --paper: #1d1a17; --card: #26221e; --ink: #f2ebe0; --muted: #a89c8e;
  --line: #3a342d; --accent: #e07a52; --accent-ink: #1d1a17; --ok: #7fbf8a; --error: #ff8a80;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.55 Inter, system-ui, sans-serif;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.demo-banner {
  background: #2b2622; color: #f6f1e7; font-size: 14px; text-align: center; padding: 8px 16px;
}
.demo-banner button { margin-left: 8px; background: none; border: 1px solid #f6f1e7; color: inherit; border-radius: 6px; padding: 2px 8px; cursor: pointer; }

.hero { display: grid; gap: 40px; align-items: center; padding: 48px 0 56px; }
@media (min-width: 820px) { .hero { grid-template-columns: 1fr 1.05fr; padding: 72px 0; } }
.hero-img { margin: 0; }
.hero-img img { width: 100%; max-width: 440px; display: block; margin: 0 auto; transform: rotate(-2deg); filter: drop-shadow(0 18px 30px rgba(0,0,0,.15)); }

.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: 13px; margin: 0 0 8px; }
h1, h2 { font-family: Fraunces, Georgia, serif; font-weight: 600; line-height: 1.1; margin: 0; }
h1 { font-size: clamp(40px, 7vw, 64px); }
h2 { font-size: 28px; margin-bottom: 20px; }
.lead { font-size: 18px; color: var(--muted); margin: 16px 0 28px; max-width: 34ch; }

.facts { display: grid; grid-template-columns: repeat(3, auto); gap: 8px 28px; margin: 0 0 28px; justify-content: start; }
.facts dt { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.facts dd { margin: 2px 0 0; font-weight: 600; }
@media (max-width: 480px) { .facts { grid-template-columns: 1fr 1fr; } }

.stock { margin-bottom: 28px; max-width: 380px; }
.bar { height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .6s ease; }
.stock p { margin: 8px 0 0; font-size: 14px; color: var(--muted); }

.btn {
  display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 99px;
  padding: 14px 28px; font: 600 16px Inter, sans-serif; text-decoration: none; cursor: pointer; text-align: center;
}
.btn:hover { filter: brightness(1.06); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
.link { background: none; border: 0; color: var(--muted); text-decoration: underline; cursor: pointer; font: inherit; margin-top: 20px; padding: 0; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 20px; max-width: 560px; margin: 0 auto 32px; scroll-margin-top: 16px;
}
@media (min-width: 600px) { .card { padding: 36px 40px; } }

form label { display: block; font-weight: 500; margin-bottom: 18px; }
input, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--error); }
.opt { color: var(--muted); font-weight: 400; }

.qty { display: flex; gap: 8px; margin-top: 6px; max-width: 180px; }
.qty input { margin: 0; text-align: center; -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.qty button { flex: 0 0 46px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 10px; font-size: 20px; cursor: pointer; }

fieldset { border: 0; padding: 0; margin: 0 0 18px; }
legend { font-weight: 500; margin-bottom: 8px; }
.choice { display: flex; gap: 12px; align-items: flex-start; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin-bottom: 8px; cursor: pointer; font-weight: 400; }
.choice:has(input:checked) { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, transparent); }
.choice input { width: auto; margin: 4px 0 0; accent-color: var(--accent); }
.choice small { display: block; color: var(--muted); }

.total { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--line); padding-top: 16px; margin: 8px 0 12px; }
.total strong { font-family: Fraunces, serif; font-size: 28px; }
.privacy { font-size: 13px; color: var(--muted); margin: 0 0 16px; }
.error { color: var(--error); font-weight: 500; }
form .btn { width: 100%; }

#done .btn, #closed .btn { margin-top: 8px; }
.code strong { font-family: ui-monospace, monospace; font-size: 20px; letter-spacing: .05em; }
.hint { font-size: 14px; color: var(--muted); }

.vinted { text-align: center; color: var(--muted); font-size: 14px; }
.vinted a, .foot a { color: var(--accent); }
.foot { text-align: center; padding: 24px 16px 48px; font-size: 14px; }