:root {
  --umbra-ink: #0f1410;
  --umbra-panel: #1a211c;
  --umbra-elevated: #243028;
  --umbra-bone: #e6e8e2;
  --umbra-mist: #c5cbbf;
  --umbra-muted: #7a8478;
  --umbra-line: rgba(230, 232, 226, 0.08);
  --umbra-line-hover: rgba(230, 232, 226, 0.16);
  --umbra-brass: #d4a84b;
  --umbra-slate: #5b8a7a;
  --umbra-copper: #b85c38;
  --umbra-radius: 8px;
  --font-display: 'Syne', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --ease: ease-out;
  --dur: 180ms;
  --max: 1100px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--umbra-ink);
  color: var(--umbra-bone);
  font-family: var(--font-body);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--umbra-brass); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--umbra-muted); }
.sku {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--umbra-slate);
  letter-spacing: 0.04em;
}

.sandbox-banner {
  background: var(--umbra-copper);
  color: var(--umbra-bone);
  text-align: center;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--umbra-line);
  background: var(--umbra-panel);
}
.brand { display: flex; align-items: center; gap: 0.65rem; color: inherit; text-decoration: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.06em;
}
.brand-sub {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--umbra-mist);
}
.site-header nav { display: flex; gap: 1rem; align-items: center; }
.site-header nav a { color: var(--umbra-mist); }
.site-header nav a.on, .site-header nav a:hover { color: var(--umbra-brass); text-decoration: none; }

main { flex: 1; width: min(var(--max), 100%); margin: 0 auto; padding: 2rem 1.25rem 3rem; }

.hero { max-width: 36rem; padding: 2rem 0 1rem; }
.eyebrow {
  font-family: var(--font-display);
  color: var(--umbra-brass);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin: 0 0 0.75rem;
}
.hero h1, .page-head h1, .product-detail h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.lede { color: var(--umbra-mist); font-size: 1.1rem; margin: 0 0 1.5rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--umbra-radius);
  border: 1px solid var(--umbra-line-hover);
  padding: 0.65rem 1.1rem;
  font: inherit;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  color: var(--umbra-bone);
  background: transparent;
  text-decoration: none;
}
.btn:hover { text-decoration: none; border-color: var(--umbra-brass); }
.btn.primary { background: var(--umbra-brass); color: var(--umbra-ink); border-color: var(--umbra-brass); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; }
.btn.copper { background: var(--umbra-copper); border-color: var(--umbra-copper); color: var(--umbra-bone); }
.btn.small { padding: 0.35rem 0.7rem; font-size: 0.9rem; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.page-head { margin-bottom: 1.5rem; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.product-card, .product-detail {
  background: var(--umbra-panel);
  border: 1px solid var(--umbra-line);
  border-radius: var(--umbra-radius);
  padding: 1.1rem;
}
.product-card h2 { font-family: var(--font-display); font-size: 1.2rem; margin: 0.35rem 0 0.5rem; }
.product-card h2 a { color: var(--umbra-bone); }
.meta { display: flex; justify-content: space-between; margin: 1rem 0; }
.price, .price-lg { color: var(--umbra-brass); font-family: var(--font-mono); }
.price-lg { font-size: 1.4rem; }

.cart-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.cart-table th, .cart-table td {
  border-bottom: 1px solid var(--umbra-line);
  padding: 0.7rem 0.4rem;
  text-align: left;
  vertical-align: top;
}
.checkout-form, .refund-form, .inline-form, .admin form {
  display: grid;
  gap: 0.85rem;
  max-width: 28rem;
  margin-top: 1rem;
}
label { display: grid; gap: 0.35rem; color: var(--umbra-mist); }
input, textarea {
  background: var(--umbra-elevated);
  border: 1px solid var(--umbra-line);
  border-radius: var(--umbra-radius);
  color: var(--umbra-bone);
  padding: 0.6rem 0.75rem;
  font: inherit;
}
.alert {
  background: color-mix(in srgb, var(--umbra-copper) 20%, transparent);
  border-left: 3px solid var(--umbra-copper);
  padding: 0.75rem 1rem;
}
.ok {
  background: color-mix(in srgb, var(--umbra-slate) 20%, transparent);
  border-left: 3px solid var(--umbra-slate);
  padding: 0.75rem 1rem;
}
.status-paid, .status-refunded { color: var(--umbra-slate); }
.status-refund_requested, .status-pending_payment { color: var(--umbra-copper); }
.order-items { list-style: none; padding: 0; }
.order-items li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--umbra-line);
}
.prose { max-width: 40rem; color: var(--umbra-mist); }
.prose ul { padding-left: 1.2rem; }
.site-footer {
  border-top: 1px solid var(--umbra-line);
  padding: 1.25rem;
  text-align: center;
  color: var(--umbra-muted);
  font-size: 0.9rem;
}
.admin { width: min(1100px, 100%); margin: 0 auto; padding: 2rem 1rem; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}