:root {
  color-scheme: dark;
  --ink: #f5f1e8;
  --muted: #a8aaa5;
  --line: #323632;
  --panel: #171a18;
  --lime: #c6ff4a;
  --red: #ff786f;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    #0d0f0e;
  background-size: 48px 48px;
  font: 16px/1.6 Inter, "Noto Sans SC", system-ui, sans-serif;
}

a { color: var(--ink); text-decoration: none; }
.wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.topbar {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 13px;
}
.brand { font-weight: 900; font-size: 20px; letter-spacing: -.02em; }
.brand span { color: var(--lime); margin-left: 6px; }
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: end;
  padding: 84px 0 64px;
}
.kicker, .label { color: var(--lime); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
h1 { margin: 12px 0 18px; font-size: clamp(44px, 7vw, 84px); line-height: .98; letter-spacing: -.065em; }
h2 { margin: 5px 0 12px; font-size: 25px; line-height: 1.2; }
.lead { max-width: 650px; color: var(--muted); font-size: 18px; }
.status-card { display: flex; align-items: center; gap: 16px; padding: 18px 22px; border: 1px solid var(--line); background: var(--panel); }
.status-card small { display: block; color: var(--muted); }
.status-card strong { font-size: 14px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #6c706c; box-shadow: 0 0 0 6px #292d29; }
.dot.ready { background: var(--lime); box-shadow: 0 0 0 6px rgba(198,255,74,.12); }
.checkout { display: grid; grid-template-columns: 1.2fr .8fr; border: 1px solid var(--line); background: rgba(13,15,14,.92); }
.product { display: grid; grid-template-columns: 220px 1fr; gap: 34px; align-items: center; padding: 48px; border-right: 1px solid var(--line); }
.product-art {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: #0d0f0e;
  background: var(--lime);
  font-size: 78px;
  font-weight: 950;
  letter-spacing: -.08em;
  transform: rotate(-3deg);
}
.product p:not(.label), .fineprint, .note p { color: var(--muted); }
.payment { padding: 42px; }
.price-row { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 26px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.price-row strong { font-size: 30px; letter-spacing: -.04em; }
.fineprint { margin: 18px 0 0; font-size: 12px; }
.result { display: none; margin-top: 18px; padding: 12px 14px; border-left: 3px solid var(--lime); background: rgba(198,255,74,.08); overflow-wrap: anywhere; }
.result.show { display: block; }
.result.error { border-color: var(--red); background: rgba(255,120,111,.08); }
.admin-wrap { padding-bottom: 80px; }
.admin-head { padding: 60px 0 36px; }
.admin-head h1 { font-size: clamp(42px, 6vw, 70px); }
.admin-grid { display: grid; grid-template-columns: .65fr 1.2fr .8fr; gap: 18px; align-items: start; }
.panel { padding: 30px; border: 1px solid var(--line); background: var(--panel); }
.hidden { display: none; }
label { display: grid; gap: 7px; margin: 16px 0; color: var(--muted); font-size: 13px; }
input, select {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid #414641;
  border-radius: 0;
  color: var(--ink);
  background: #0f1210;
  font: inherit;
  outline: none;
}
input:focus, select:focus { border-color: var(--lime); }
button {
  width: 100%;
  margin-top: 10px;
  padding: 14px 18px;
  border: 0;
  color: #0d0f0e;
  background: var(--lime);
  font: 800 15px/1.2 inherit;
  cursor: pointer;
}
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
code { color: var(--ink); }

@media (max-width: 900px) {
  .hero, .checkout, .admin-grid { grid-template-columns: 1fr; }
  .status-card { justify-self: start; }
  .product { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 600px) {
  .wrap { width: min(100% - 24px, 1180px); }
  .hero { padding: 50px 0 38px; }
  .product { grid-template-columns: 1fr; padding: 28px; }
  .product-art { max-width: 180px; }
  .payment, .panel { padding: 26px; }
  .two-col { grid-template-columns: 1fr; gap: 0; }
}