/* Storefront: Material Design 3 semantic tokens, adaptive layouts.
   Uses only the framework's --m3-sys-* semantic roles (see
   docs/MATERIAL_DESIGN_3.md). Branding stays token-driven. */

.storefront-page {
  max-width: 100%;
  margin-inline: auto;
  padding: clamp(6.5rem, 8vw, 8.5rem) 1rem 3rem;
  color: var(--m3-sys-color-on-surface);
  background: var(--m3-sys-color-surface);
  font-family: var(--font-sans);
}

.storefront-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.storefront-title {
  font: var(--m3-sys-typescale-headline-large);
  color: var(--m3-sys-color-on-surface);
  margin: 0;
}

.storefront-subtitle {
  font: var(--m3-sys-typescale-body-large);
  color: var(--m3-sys-color-on-surface-variant);
  margin: 0.25rem 0 0;
}

.storefront-back {
  margin-bottom: 1.25rem;
}

.storefront-back-link {
  font: var(--m3-sys-typescale-label-large);
  color: var(--m3-sys-color-primary);
  text-decoration: none;
}

.storefront-back-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.storefront-feed {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.storefront-card {
  display: flex;
  flex-direction: column;
  background: var(--m3-sys-color-surface-container-low);
  border-radius: var(--m3-sys-shape-corner-large);
  overflow: hidden;
  box-shadow: var(--m3-sys-elevation-1);
}

.storefront-card-media {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  background: var(--m3-sys-color-surface-container-high);
}

img.storefront-card-media {
  display: block;
  object-fit: cover;
}

.storefront-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.storefront-card-media-placeholder {
  background:
    linear-gradient(135deg, var(--m3-sys-color-primary-container), var(--m3-sys-color-secondary-container));
}

.storefront-card-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.storefront-card-name {
  font: var(--m3-sys-typescale-title-medium);
  color: var(--m3-sys-color-on-surface);
  margin: 0;
}

.storefront-card-name a {
  display: flex;
  align-items: center;
  min-height: 48px;
  color: inherit;
  text-decoration: none;
}

.storefront-card-name a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.storefront-card-description {
  font: var(--m3-sys-typescale-body-medium);
  color: var(--m3-sys-color-on-surface-variant);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.storefront-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.storefront-price {
  font: var(--m3-sys-typescale-title-large);
  color: var(--m3-sys-color-primary);
}

.storefront-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font: var(--m3-sys-typescale-label-large);
  color: var(--m3-sys-color-on-secondary-container);
  background: var(--m3-sys-color-secondary-container);
  border-radius: var(--m3-sys-shape-corner-full);
  padding: 0.25rem 0.75rem;
}

.storefront-empty {
  font: var(--m3-sys-typescale-body-large);
  color: var(--m3-sys-color-on-surface-variant);
  text-align: center;
  padding: 3rem 1rem;
}

.storefront-checkout-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.5rem;
  border: none;
  border-radius: var(--m3-sys-shape-corner-full);
  background: var(--m3-sys-color-primary);
  color: var(--m3-sys-color-on-primary);
  font: var(--m3-sys-typescale-label-large);
  cursor: pointer;
  transition: box-shadow var(--m3-sys-motion-duration-short) var(--m3-sys-motion-easing-standard);
}

.storefront-checkout-button:hover {
  box-shadow: var(--m3-sys-elevation-2);
}

.storefront-checkout-button:active {
  box-shadow: var(--m3-sys-elevation-1);
}

/* Product detail */
.storefront-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.storefront-detail-media {
  border-radius: var(--m3-sys-shape-corner-extra-large);
  overflow: hidden;
  background: var(--m3-sys-color-surface-container-high);
}

.storefront-detail-media img {
  width: 100%;
  height: auto;
  display: block;
}

.storefront-detail-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.storefront-description {
  font: var(--m3-sys-typescale-body-large);
  color: var(--m3-sys-color-on-surface-variant);
  margin: 0;
}

.storefront-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.storefront-checkout-form,
.storefront-field {
  display: grid;
  gap: 0.5rem;
  width: min(100%, 30rem);
}

.storefront-field label {
  font: var(--m3-sys-typescale-label-large);
}

.storefront-field input {
  min-height: 48px;
  padding: 0 1rem;
  border: 1px solid var(--m3-sys-color-outline);
  border-radius: var(--m3-sys-shape-corner-small);
  color: var(--m3-sys-color-on-surface);
  background: var(--m3-sys-color-surface-container-lowest);
  font: var(--m3-sys-typescale-body-large);
}

.storefront-field input:focus-visible,
.storefront-checkout-button:focus-visible {
  outline: 3px solid var(--m3-sys-color-primary);
  outline-offset: 3px;
}

.storefront-field p,
.storefront-order-number {
  margin: 0;
  color: var(--m3-sys-color-on-surface-variant);
  font: var(--m3-sys-typescale-body-small);
}

.storefront-preview-checkout,
.storefront-receipt {
  max-width: 44rem;
}

.storefront-test-panel,
.storefront-order-items {
  margin-block: 1.5rem;
  padding: 1.5rem;
  border-radius: var(--m3-sys-shape-corner-large);
  background: var(--m3-sys-color-surface-container-low);
  box-shadow: var(--m3-sys-elevation-1);
}

.storefront-test-panel h2 {
  margin-top: 0;
  font: var(--m3-sys-typescale-title-large);
}

.storefront-order-items {
  display: grid;
  gap: 0.75rem;
  list-style: none;
}

.storefront-order-items li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.storefront-note {
  font: var(--m3-sys-typescale-body-medium);
  color: var(--m3-sys-color-on-surface-variant);
  display: flex;
  gap: 0.375rem;
  align-items: center;
}

/* Adaptive breakpoints — Material 3 compact / medium / expanded / large / extra-large */
@media (min-width: 600px) {
  .storefront-feed { grid-template-columns: repeat(2, 1fr); }
  .storefront-detail { grid-template-columns: 1fr 1fr; }
  .storefront-page { padding-inline: 1.5rem; }
}

@media (min-width: 840px) {
  .storefront-feed { grid-template-columns: repeat(3, 1fr); }
  .storefront-page { padding-inline: 2rem; padding-bottom: 4rem; }
}

@media (min-width: 1200px) {
  .storefront-feed { grid-template-columns: repeat(4, 1fr); }
  .storefront-page { max-width: 1200px; }
}

@media (min-width: 1600px) {
  .storefront-feed { grid-template-columns: repeat(5, 1fr); }
  .storefront-page { max-width: 1440px; }
}