:root {
  --bg: #0b0f14;
  --bg-alt: #111823;
  --bg-card: #141d29;
  --border: #253242;
  --text: #d7e0ea;
  --text-dim: #8a99a8;
  --accent: #3ddc84;
  --accent-dim: #2a9d61;
  --warn: #e6b455;
  --danger: #e6555a;
  --tag-bg: #1b2735;
  --radius: 8px;
  font-family: "Segoe UI", Roboto, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); }

.site-header {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
}

.header-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  font-family: "Consolas", "Courier New", monospace;
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
}

.brand h1 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
}

.brand h1 a { color: var(--text); text-decoration: none; }

.tagline {
  margin: 0.15rem 0 0;
  color: var(--text-dim);
  font-size: 0.85rem;
  max-width: 46ch;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.site-nav a { color: var(--text-dim); text-decoration: none; }
.site-nav a:hover { color: var(--accent); }

.notice-banner {
  background: #1c1508;
  border-bottom: 1px solid #3a2c10;
  color: var(--warn);
  padding: 0.7rem 1.5rem;
  font-size: 0.85rem;
  text-align: center;
}

.hero {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1rem;
  text-align: center;
}

.hero h2 {
  font-size: 1.6rem;
  margin: 0 0 0.5rem;
}

.hero p {
  color: var(--text-dim);
  max-width: 60ch;
  margin: 0 auto;
}

.layout {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.5rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.product-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.product-desc {
  color: var(--text-dim);
  font-size: 0.9rem;
  flex-grow: 1;
}

.product-price {
  font-family: "Consolas", "Courier New", monospace;
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 700;
}

.buy-btn {
  background: var(--accent-dim);
  color: #06110a;
  border: none;
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
}

.buy-btn:hover { background: var(--accent); }

.buy-btn.coming-soon {
  background: var(--tag-bg);
  color: var(--text-dim);
  cursor: not-allowed;
  pointer-events: none;
}

.preview {
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
  padding-top: 0.6rem;
}

.preview summary {
  cursor: pointer;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  list-style: none;
}

.preview summary::-webkit-details-marker { display: none; }
.preview summary::before { content: "+ "; }
.preview[open] summary::before { content: "\2212 "; }

.preview-body {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.preview-body ul {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
}

.preview-body li { margin-bottom: 0.3rem; }

.preview-body code {
  font-family: "Consolas", "Courier New", monospace;
  background: #060a0e;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.3rem;
  color: var(--accent);
  font-size: 0.78rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
}

@media (max-width: 600px) {
  .layout { padding: 1rem; }
}