:root {
  --void: #0b0f1a;
  --hull: #121828;
  --hull-2: #1a2236;
  --line: #2a3450;
  --ink: #e6e9f2;
  --ink-dim: #9aa3bd;
  --signal: #f2b84b;
  --xenium: #6fc3df;
  --ok: #6fd3a4;
  --enemy: #ef6b6b;
  --f-display: "Chakra Petch", "Segoe UI", system-ui, sans-serif;
  --f-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.5;
}

button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: var(--hull);
  border-bottom: 1px solid var(--line);
}

.brand { font-family: var(--f-display); font-weight: 700; font-size: 18px; }

.cart-button {
  min-height: 44px;
  padding: 0 14px;
  background: var(--hull-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: var(--f-display);
}
.cart-button b { color: var(--signal); margin-left: 4px; font-variant-numeric: tabular-nums; }

main { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.hero { padding: 40px 0 28px; }
.hero h1 {
  margin: 0;
  font-family: var(--f-display);
  font-size: clamp(32px, 8vw, 52px);
  line-height: 1.05;
  text-wrap: balance;
}
.hero p { margin: 10px 0 0; color: var(--ink-dim); max-width: 34em; }

.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.product {
  display: flex;
  flex-direction: column;
  background: var(--hull);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.product img { display: block; width: 100%; aspect-ratio: 2 / 3; object-fit: cover; background: var(--hull-2); }
.product-body { display: flex; flex-direction: column; gap: 10px; padding: 14px; flex: 1; }
.product h2 { margin: 0; font-family: var(--f-display); font-size: 19px; line-height: 1.2; }

.price { color: var(--xenium); font-family: var(--f-display); font-variant-numeric: tabular-nums; }

.sizes { display: flex; flex-wrap: wrap; gap: 6px; }
.size {
  min-width: 44px;
  min-height: 40px;
  background: var(--hull-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--f-display);
  font-size: 14px;
}
.size[aria-pressed="true"] { border-color: var(--signal); color: var(--signal); }

.primary {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 10px 16px;
  background: var(--signal);
  border: 0;
  border-radius: 8px;
  color: var(--void);
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  text-decoration: none;
}
.add { margin-top: auto; }

.footer {
  max-width: 1040px;
  margin: 40px auto 0;
  padding: 20px 16px 32px;
  border-top: 1px solid var(--line);
  color: var(--ink-dim);
  font-size: 14px;
}

.sheet {
  width: min(520px, calc(100vw - 24px));
  max-height: calc(100dvh - 24px);
  padding: 18px;
  background: var(--hull);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
}
.sheet::backdrop { background: rgba(5, 8, 15, 0.75); }
.sheet h2 { margin: 0; font-family: var(--f-display); font-size: 22px; }

.sheet-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.close { width: 44px; height: 44px; background: none; border: 0; color: var(--ink-dim); font-size: 26px; line-height: 1; }

.dim { color: var(--ink-dim); }
.note { margin: 8px 0 0; color: var(--ink-dim); font-size: 14px; }
.field-error { margin: 0 0 8px; color: var(--enemy); font-size: 14px; }
.field input::placeholder { color: var(--ink-dim); opacity: 0.6; }

.cart-lines { list-style: none; margin: 0; padding: 0; }
.cart-line {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.cart-line small { display: block; color: var(--ink-dim); }
.remove { min-height: 40px; background: none; border: 0; color: var(--ink-dim); text-decoration: underline; font-size: 14px; }

.total { display: flex; justify-content: space-between; margin: 12px 0; font-family: var(--f-display); font-size: 18px; }
.total b { color: var(--xenium); font-variant-numeric: tabular-nums; }

fieldset { margin: 16px 0 0; padding: 0; border: 0; min-width: 0; }
legend {
  padding: 0;
  margin-bottom: 8px;
  color: var(--signal);
  font-family: var(--f-display);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.field { display: block; flex: 1; margin-bottom: 10px; color: var(--ink-dim); font-size: 14px; }
.field input {
  display: block;
  width: 100%;
  min-height: 44px;
  margin-top: 4px;
  padding: 8px 10px;
  background: var(--void);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font-size: 16px;
}
.field-row { display: flex; gap: 10px; }

.choice {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  margin-bottom: 6px;
  padding: 8px 12px;
  background: var(--hull-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}
.choice:has(input:checked) { border-color: var(--signal); }
.choice:has(input:disabled) { opacity: 0.5; cursor: not-allowed; }
.choice input { accent-color: var(--signal); }
.choice em { display: block; color: var(--ink-dim); font-style: normal; font-size: 14px; }

#card-fields { margin-top: 12px; }
#checkout .primary { margin-top: 18px; }

.result { text-align: center; }
.result.declined h2 { color: var(--enemy); }
.result.placed h2 { color: var(--ok); }
.result .primary { margin-top: 14px; }

[hidden] { display: none !important; }

@media (prefers-reduced-motion: no-preference) {
  .product { transition: border-color 0.15s; }
  .product:hover { border-color: var(--ink-dim); }
}