:root {
  --ink: #111111;
  --paper: #ffffff;
  --soft: #f2f0ef;
  --muted: #667078;
  --wine: #751c35;
  --aqua: #20d5ce;
  --green: #037f44;
  --line: #e4e1de;
}

* { box-sizing: border-box; }

html { background: var(--paper); }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; }

.site-header,
.product,
.site-footer {
  width: min(100%, 1180px);
  margin: 0 auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.site-header p { margin: 0; }
.site-header .tag { color: var(--aqua); text-align: right; }

.product {
  display: grid;
  gap: 1.75rem;
  padding: 1.25rem;
}

.hero {
  overflow: hidden;
  border-radius: 0.75rem;
  background: var(--soft);
}

.hero img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.details {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

h1 {
  order: 0;
  margin: 0;
  font-size: clamp(2.1rem, 8vw, 3.25rem);
  line-height: 0.96;
  letter-spacing: -0.065em;
  font-weight: 900;
}

.eyebrow {
  order: 1;
  margin: 0.5rem 0 1.1rem;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 550;
}

.prices {
  order: 2;
  display: grid;
  gap: 0.7rem;
  margin: 0 0 1.4rem;
}

.price { color: var(--ink); }
.price strong { font-size: 1.75rem; line-height: 1; letter-spacing: -0.05em; }
.price span { margin-left: 0.3rem; color: var(--muted); font-size: 0.9rem; font-weight: 700; }

.price--promo {
  padding: 0.9rem;
  border-radius: 0.5rem;
  background: #eef8f2;
  color: var(--green);
}

.price--promo strong { font-size: 1.3rem; }
.price--promo span { color: var(--green); }
.price--promo span::before { content: "PROMO: "; font-weight: 900; }

.cta {
  order: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.8rem;
  border-radius: 2rem;
  background: var(--ink);
  color: var(--paper);
  font-weight: 900;
  text-decoration: none;
}

.cta:hover,
.cta:focus-visible { background: var(--wine); }

.fine-print {
  order: 4;
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.product-copy {
  order: 6;
  margin: 1.8rem 0 0;
  border-top: 1px solid var(--line);
  padding-top: 1.6rem;
  font-size: 1rem;
  line-height: 1.58;
}

.specs {
  order: 5;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 1.35rem 0 0;
  padding: 0;
  list-style: none;
}

.specs li {
  padding: 0.68rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: #fafafa;
  font-size: 0.84rem;
  font-weight: 720;
}

.site-footer {
  padding: 1.6rem 1.25rem 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.65;
}

.site-footer p { margin: 0; }
.site-footer a { color: var(--ink); font-weight: 760; text-decoration: none; }

@media (min-width: 760px) {
  .site-header { padding: 1.1rem 2.35rem; }
  .product {
    grid-template-columns: minmax(0, 1.28fr) minmax(20rem, 0.72fr);
    align-items: start;
    gap: 2.5rem;
    padding: 2.5rem;
  }
  .hero { position: sticky; top: 1rem; }
  .hero img { min-height: 35rem; }
  .details { padding-top: 0.35rem; }
  .site-footer { padding: 2rem 2.5rem 3rem; }
}