/* Forklift Life Storefront — styling
   Dark industrial aesthetic: charcoal background, safety-orange accent.
   Adapted from clients/shirley-brown-superpatch/site/css/style.css,
   replacing the SuperPatch navy/cyan palette with the industrial palette
   (RESEARCH.md section 8). */

:root {
  /* Backgrounds */
  --bg: #1a1a1a;
  --bg-card: #242424;
  --bg-card-elevated: #2e2e2e;

  /* Text */
  --text: #f5f5f5;
  --text-muted: #999999;

  /* Accent — Safety Orange (OSHA/ANSI high-vis) */
  --accent: #ff6600;
  --accent-hover: #ff8533;
  --accent-dark: #1a1a1a;

  /* Supporting */
  --success: #22c55e;
  --error: #ef4444;
  --border: rgba(255, 102, 0, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.site-header {
  padding: 24px;
  text-align: center;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-card) 100%);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.site-header h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text);
}

.site-tagline {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.cart-icon {
  position: absolute;
  top: 20px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  font: inherit;
}

.cart-glyph {
  font-size: 1.25rem;
}

.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 700;
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 24px;
}

@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: linear-gradient(160deg, var(--bg-card-elevated) 0%, var(--bg-card) 100%);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 102, 0, 0.15);
}

.product-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  display: block;
  margin-bottom: 12px;
  background: var(--bg-card-elevated);
}

.product-badge {
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.product-name {
  margin: 4px 0;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.product-description {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.4;
}

.product-price {
  margin-top: 6px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

.variant-group {
  margin-top: 12px;
}

.variant-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.variant-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.variant-btn {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.variant-btn:hover {
  background: var(--accent-hover);
  color: var(--accent-dark);
}

.variant-btn.selected-variant {
  background: var(--accent);
  color: var(--accent-dark);
  font-weight: 700;
  transform: scale(1.03);
}

.btn-add-to-cart {
  display: block;
  width: 100%;
  margin-top: 14px;
  background: var(--accent);
  color: var(--accent-dark);
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn-add-to-cart:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  padding: 48px 0;
}

/* Section headings dividing apparel from posters (Task 2) */
.section-heading {
  grid-column: 1 / -1;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1.3rem;
  padding: 16px 0 8px;
  border-bottom: 1px solid var(--border);
  margin-top: 24px;
}

/* Cart drawer + overlay */

.cart-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 90;
}

.cart-overlay.cart-overlay-visible {
  display: block;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 100%;
  max-width: 380px;
  background: var(--bg-card);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.6);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 20px;
  overflow-y: auto;
}

.cart-drawer.cart-drawer-open {
  transform: translateX(0);
}

.cart-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 12px;
}

.cart-drawer-header h2 {
  margin: 0;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.cart-items-list {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 24px 0;
}

.cart-item {
  display: grid;
  grid-template-columns: 48px 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cart-item-image {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--bg-card-elevated);
}

.cart-item-name {
  font-weight: 700;
  font-size: 0.85rem;
}

.cart-item-variant {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin: 2px 0 6px;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-qty {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  line-height: 1;
}

.cart-item-qty-value {
  min-width: 16px;
  text-align: center;
}

.cart-item-line-total {
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
}

.btn-cart-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
}

.cart-total {
  font-weight: 700;
  font-size: 1.1rem;
  padding: 12px 0;
  border-top: 1px solid var(--border);
}

.cart-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-dark);
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--text-muted);
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
}

.checkout-error {
  color: var(--error);
  font-size: 0.85rem;
  margin: 8px 0 0;
}

.site-footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

.confirmation-main {
  max-width: 560px;
  margin: 48px auto;
  padding: 0 24px;
  text-align: center;
}

.confirmation-main h2 {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.btn-link {
  margin-top: 16px;
}

/* Mobile sticky cart bar (Task 3) — appears on screens under 768px once
   the cart has items and the user has scrolled past the first product. */
.mobile-cart-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  z-index: 80;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mobile-cart-bar.mobile-cart-bar-visible {
  display: flex;
}

.mobile-cart-count,
.mobile-cart-total {
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
}

.btn-mobile-cart {
  background: var(--accent);
  color: var(--accent-dark);
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 700;
  cursor: pointer;
}

@media (min-width: 768px) {
  .mobile-cart-bar {
    display: none !important;
  }
}