:root {
  --text: #111;
  --muted: #6b6b6b;
  --line: #e5e5e5;
  --backdrop: #efefef;
  --accent: #111;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.5;
}

a {
  color: inherit;
}

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.container.narrow {
  max-width: 900px;
}

.page-title {
  margin: 0 0 24px;
  font-size: 1.5rem;
  font-weight: 600;
}

.muted {
  color: var(--muted);
  font-size: 0.875rem;
}

.empty {
  text-align: center;
  color: var(--muted);
}

/* Header */

#site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  /* letter-spacing adds a trailing gap; offset it so the text stays centered */
  margin-right: -0.3em;
  text-decoration: none;
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 14px;
}

.cart-link {
  position: relative;
  display: inline-flex;
  padding: 4px;
}

/* Region picker */

.region-picker {
  position: relative;
  min-width: 34px;
  min-height: 34px;
}

.region-button {
  display: flex;
  padding: 4px 6px;
  border: 0;
  border-radius: 4px;
  background: none;
  cursor: pointer;
}

.region-button:hover {
  background: #f2f2f2;
}

.region-flag {
  font-size: 1.4rem;
  line-height: 1;
}

.region-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 15;
  min-width: 230px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.region-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 4px;
  background: none;
  font: inherit;
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
}

.region-menu button:hover:not(:disabled),
.region-menu button[aria-selected='true'] {
  background: #f2f2f2;
}

.region-menu button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.region-name {
  flex: 1;
}

.cart-badge {
  position: absolute;
  top: -4px;
  right: -8px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 18px;
  text-align: center;
}

/* Footer */

#site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 12px 24px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  opacity: 0.85;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-wide {
  width: 100%;
}

/* Home: product grid */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 24px;
}

.product-media {
  position: relative;
  aspect-ratio: 1;
  background: var(--backdrop);
  overflow: hidden;
}

.product-media img {
  width: 100%;
  height: 100%;
  padding: 12%;
  object-fit: contain;
  /* blends any white image background into the grey backdrop */
  mix-blend-mode: multiply;
}

.product-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: opacity 0.2s;
}

.product-card:hover .product-overlay,
.product-overlay:focus-within {
  opacity: 1;
}

.product-name {
  margin: 14px 0 2px;
  font-size: 1rem;
  font-weight: 500;
}

.product-price {
  margin: 0;
  color: var(--muted);
}

/* Cart */

.cart-list,
.summary-items {
  margin: 0;
  padding: 0;
  list-style: none;
}

.cart-row {
  display: grid;
  grid-template-columns: 72px 1fr 110px 130px 110px 32px;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.cart-head {
  padding: 0 0 10px;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cart-thumb {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  background: var(--backdrop);
}

.cart-thumb img {
  width: 100%;
  height: 100%;
  padding: 8px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.cart-name {
  font-weight: 500;
}

.cart-line-total {
  text-align: right;
  font-weight: 500;
}

.cart-qty {
  display: flex;
  align-items: center;
}

.qty-btn,
.qty-input {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
  text-align: center;
}

.qty-btn {
  cursor: pointer;
}

.qty-input {
  width: 44px;
  border-left: 0;
  border-right: 0;
  appearance: textfield;
  -moz-appearance: textfield;
}

.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.remove-btn {
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
}

.remove-btn:hover {
  color: var(--text);
}

.cart-footer {
  max-width: 340px;
  margin: 24px 0 0 auto;
}

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

/* Payment */

.payment {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.summary {
  padding: 24px;
  background: #fafafa;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.summary h2 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 600;
}

.summary-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.summary-info {
  flex: 1;
  font-weight: 500;
}

.summary-info .muted {
  font-weight: 400;
}

.summary-line-total {
  font-weight: 500;
}

.summary .cart-total {
  margin: 18px 0 0;
}

#payment-form > div:not(:empty) {
  margin-bottom: 20px;
}

.payment-message {
  margin: 14px 0 0;
  color: #c0392b;
  font-size: 0.9rem;
}

.complete {
  text-align: center;
}

/* Settings panel */

.settings-toggle {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 20;
  transform: translateY(-50%);
  display: flex;
  padding: 10px;
  border: 1px solid var(--line);
  border-right: 0;
  border-radius: 6px 0 0 6px;
  background: #fff;
  color: var(--text);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  cursor: pointer;
}

.settings-toggle:hover {
  background: #f5f5f5;
}

.settings-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.settings-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 31;
  width: 340px;
  max-width: 90vw;
  padding: 24px;
  overflow-y: auto;
  background: #fff;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.25s ease, visibility 0.25s;
}

.settings-open .settings-backdrop {
  opacity: 1;
  visibility: visible;
}

.settings-open .settings-panel {
  transform: none;
  visibility: visible;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.settings-header h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.settings-group {
  margin: 0 0 24px;
  padding: 0;
  border: 0;
}

.settings-group legend {
  padding: 0;
  font-size: 0.9rem;
  font-weight: 600;
}

.settings-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.9rem;
  cursor: pointer;
}

.settings-group p {
  margin: 8px 0 0;
}

.settings-group .settings-switch-row {
  justify-content: space-between;
  margin-top: 0;
  font-weight: 600;
}

/* Toggle switch built on a checkbox */
.switch {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex-shrink: 0;
  width: 42px;
  height: 24px;
  margin: 0;
  border-radius: 12px;
  background: #c9c9c9;
  cursor: pointer;
  transition: background 0.2s;
}

.switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
}

.switch:checked {
  background: var(--accent);
}

.switch:checked::after {
  transform: translateX(18px);
}

/* Responsive */

@media (max-width: 900px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .payment {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .cart-head {
    display: none;
  }

  .cart-row {
    grid-template-columns: 72px 1fr auto;
    grid-template-areas:
      'thumb name remove'
      'thumb price price'
      'thumb qty total';
    gap: 6px 16px;
  }

  .cart-row .cart-thumb {
    grid-area: thumb;
  }
  .cart-row .cart-name {
    grid-area: name;
  }
  .cart-row .cart-price {
    grid-area: price;
    color: var(--muted);
  }
  .cart-row .cart-qty {
    grid-area: qty;
  }
  .cart-row .cart-line-total {
    grid-area: total;
  }
  .cart-row .remove-btn {
    grid-area: remove;
  }

  .cart-footer {
    max-width: none;
  }
}

@media (max-width: 520px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

/* Touch devices have no hover, so keep the add-to-cart button visible */
@media (hover: none) {
  .product-overlay {
    align-items: flex-end;
    padding-bottom: 16px;
    background: none;
    opacity: 1;
  }
}