:root {
  --bg: #050308;
  --bg-elevated: #0c0a12;
  --text: #e8e4f0;
  --muted: #9a92a8;
  --magenta: #e040a0;
  --magenta-soft: #c44a9a;
  --cyan: #4ecdc4;
  --cyan-dim: #2a9a94;
  --border: rgba(224, 64, 160, 0.25);
  --glow: rgba(78, 205, 196, 0.15);
  --radius: 12px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(224, 64, 160, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 90% 80%, rgba(78, 205, 196, 0.08), transparent),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(5, 3, 8, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  color: var(--text);
}

.brand a {
  color: inherit;
  text-decoration: none;
}

.site-header nav a {
  color: var(--muted);
  font-size: 0.9rem;
}

.site-header nav a:hover {
  color: var(--cyan);
}

.product {
  display: grid;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

@media (min-width: 800px) {
  .product {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
    gap: 2.5rem;
    padding-top: 2.5rem;
  }
}

.hero {
  display: flex;
  justify-content: center;
}

.hero-img {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  border-radius: var(--radius);
  box-shadow:
    0 0 0 1px var(--border),
    0 20px 60px rgba(0, 0, 0, 0.55),
    0 0 40px var(--glow);
  object-fit: contain;
  background: #000;
}

.details h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #fff 30%, var(--magenta), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.buy-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.buy-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.buy-btn:hover {
  text-decoration: none;
  border-color: var(--magenta);
  box-shadow: 0 0 24px rgba(224, 64, 160, 0.2);
  transform: translateY(-1px);
}

.buy-btn-accent {
  border-color: rgba(78, 205, 196, 0.35);
  background: linear-gradient(135deg, rgba(224, 64, 160, 0.15), rgba(78, 205, 196, 0.12));
}

.buy-btn-accent:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 24px rgba(78, 205, 196, 0.25);
}

.buy-btn .price {
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.ship-note {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.facts {
  margin: 0 0 1.5rem;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.facts li {
  margin-bottom: 0.35rem;
}

.seller,
.support {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.seller strong {
  color: var(--text);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 1.25rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0.35rem 0;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.legal {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.legal h1 {
  margin: 0 0 1rem;
  font-size: 1.75rem;
}

.legal p {
  color: var(--muted);
  margin: 0 0 1rem;
}

.legal .back {
  display: inline-block;
  margin-top: 0.5rem;
  font-weight: 600;
}