:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: #1a1a1a;
  background: #fafafa;
}

.demo-banner {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: #ffe58a;
  border-block-end: 1px solid #e6c94a;
  color: #3d2e00;
  font-size: 0.9rem;
  text-align: center;
}

.site-header {
  padding: 1.5rem 1rem 0.5rem;
  text-align: center;
}

.site-header h1 {
  margin: 0;
  font-size: 1.6rem;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid #e2e2e2;
  border-radius: 12px;
}

.card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.card .desc {
  flex: 1;
  margin: 0;
  color: #555;
}

.card .price {
  margin: 0;
  font-weight: 600;
}

.btn {
  min-block-size: 44px;
  padding: 0.6rem 1.1rem;
  font: inherit;
  border: 1px solid #999;
  border-radius: 8px;
  background: #fff;
  color: inherit;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: #1f6feb;
  border-color: #1f6feb;
  color: #fff;
}

.btn:focus-visible,
a:focus-visible {
  outline: 3px solid #1f6feb;
  outline-offset: 2px;
}

.status {
  min-block-size: 1.5em;
  margin: 1rem 0 0.25rem;
  color: #444;
}

.status.error {
  color: #b3261e;
}

.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-block-start: 1.5rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 12px;
}

.summary p {
  margin: 0;
}

.order-details {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 1rem;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 12px;
}

.order-details div {
  display: flex;
  gap: 0.75rem;
}

.order-details dt {
  min-inline-size: 8rem;
  font-weight: 600;
}

.order-details dd {
  margin: 0;
}

.back-link {
  margin-block-start: 1.5rem;
}