/* ===== APP SHELL (header + main layout) ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 241, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(44, 24, 16, 0.08);
}

.app-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg);
  text-decoration: none;
}

.app-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.app-nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-light);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.app-nav-link:hover,
.app-nav-link.active {
  color: var(--accent);
}

.app-nav-cart {
  position: relative;
  display: flex;
  align-items: center;
  color: var(--fg);
  text-decoration: none;
  font-size: 1.2rem;
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 600;
  min-width: 18px;
  height: 18px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
}

.app-main {
  min-height: calc(100vh - 65px - 120px);
}

/* ===== SHOP CATALOG ===== */
.shop-hero {
  padding: 5rem 2rem 3rem;
  text-align: center;
  background: var(--bg);
}

.shop-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  margin-bottom: 1rem;
  color: var(--fg);
}

.shop-hero-sub {
  color: var(--fg-light);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto;
}

.shop-catalog {
  padding: 3rem 2rem 6rem;
  background: var(--bg-warm);
}

.shop-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.shop-card {
  background: var(--bg);
  border: 1px solid rgba(44, 24, 16, 0.06);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}

.shop-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(44, 24, 16, 0.08);
}

.shop-card-link {
  display: block;
  padding: 2.5rem;
  text-decoration: none;
  color: inherit;
}

.shop-card-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.shop-card-badge {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
}

.shop-card-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--fg);
}

.shop-card-subtitle {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 0.8rem;
  letter-spacing: 0.03em;
}

.shop-card-desc {
  font-size: 0.9rem;
  color: var(--fg-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.shop-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--sand);
}

.shop-card-price {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--fg);
}

.shop-card-cta {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
}

/* ===== PRODUCT DETAIL ===== */
.product-detail {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 2rem 6rem;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 3rem;
}

.breadcrumb a {
  color: var(--fg-muted);
  text-decoration: none;
}

.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { margin: 0 0.5rem; }

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5rem;
  align-items: start;
}

.product-visual-box {
  background: var(--bg-warm);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 1px solid var(--sand);
}

.product-visual-icon {
  font-size: 8rem;
  color: var(--accent);
  opacity: 0.5;
}

.product-detail-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
}

.product-detail-name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: var(--fg);
}

.product-detail-subtitle {
  font-size: 0.9rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.product-detail-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.product-detail-desc {
  font-size: 1rem;
  color: var(--fg-light);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.product-details-box {
  background: var(--bg-warm);
  border: 1px solid var(--sand);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.product-details-box h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 1rem;
}

.detail-line {
  font-size: 0.9rem;
  color: var(--fg-light);
  margin-bottom: 0.4rem;
}

.qty-selector {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.qty-selector label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-light);
}

.qty-controls {
  display: flex;
  align-items: center;
  border: 1px solid var(--sand);
}

.qty-btn {
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--fg);
  transition: background 0.2s;
}

.qty-btn:hover { background: var(--bg-warm); }

.qty-controls input[type="number"] {
  width: 50px;
  text-align: center;
  border: none;
  border-left: 1px solid var(--sand);
  border-right: 1px solid var(--sand);
  height: 40px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--fg);
  background: var(--bg);
  -moz-appearance: textfield;
}

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

.btn-add-to-cart {
  width: 100%;
  background: var(--fg);
  color: #FAF6F1;
  border: none;
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.2s;
  margin-bottom: 1.5rem;
}

.btn-add-to-cart:hover:not(:disabled) { background: var(--accent); }
.btn-add-to-cart:disabled { opacity: 0.7; cursor: not-allowed; }

.product-trust {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.product-trust span {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ===== CART PAGE ===== */
.cart-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 2rem 6rem;
}

.cart-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 2.5rem;
}

.cart-empty {
  text-align: center;
  padding: 5rem 0;
}

.cart-empty-msg {
  font-size: 1.1rem;
  color: var(--fg-light);
  margin-bottom: 2rem;
}

.btn-primary {
  display: inline-block;
  background: var(--fg);
  color: #FAF6F1;
  padding: 0.9rem 2rem;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.2s;
}

.btn-primary:hover { background: var(--accent); }

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 3rem;
  align-items: start;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cart-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--sand);
}

.cart-item-icon {
  font-size: 2rem;
  color: var(--accent);
  min-width: 48px;
  text-align: center;
}

.cart-item-details {
  flex: 1;
}

.cart-item-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
}

.cart-item-name:hover { color: var(--accent); }

.cart-item-unit-price {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 0.2rem;
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.qty-controls-sm {
  display: flex;
  align-items: center;
  border: 1px solid var(--sand);
}

.qty-btn-sm {
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  font-size: 1rem;
  cursor: pointer;
  color: var(--fg);
}

.qty-btn-sm:hover { background: var(--bg-warm); }

.qty-display {
  width: 36px;
  text-align: center;
  border-left: 1px solid var(--sand);
  border-right: 1px solid var(--sand);
  height: 32px;
  line-height: 32px;
  font-size: 0.9rem;
}

.cart-item-total {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
  min-width: 70px;
  text-align: right;
}

.cart-remove-btn {
  background: none;
  border: none;
  color: var(--fg-muted);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
}

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

.cart-summary {
  background: var(--bg-warm);
  border: 1px solid var(--sand);
  padding: 2rem;
  position: sticky;
  top: 85px;
}

.cart-summary-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--fg-light);
  margin-bottom: 0.8rem;
}

.cart-summary-row.muted { color: var(--fg-muted); font-size: 0.85rem; }

.cart-summary-total {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--fg);
  border-top: 1px solid var(--sand);
  padding-top: 1rem;
  margin: 1rem 0 1.5rem;
}

.btn-checkout {
  width: 100%;
  background: var(--fg);
  color: #FAF6F1;
  border: none;
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: not-allowed;
  opacity: 0.5;
  margin-bottom: 0.8rem;
}

.cart-summary-note {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-align: center;
  margin-bottom: 1.5rem;
}

.cart-continue {
  display: block;
  text-align: center;
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
}

.cart-continue:hover { text-decoration: underline; }

/* ===== ERROR PAGE ===== */
.error-page {
  max-width: 600px;
  margin: 8rem auto;
  text-align: center;
  padding: 2rem;
}

.error-page h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--fg-light);
  margin-bottom: 2rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .shop-grid {
    grid-template-columns: 1fr;
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .cart-layout {
    grid-template-columns: 1fr;
  }

  .cart-summary {
    position: static;
  }

  .cart-item {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .product-trust {
    gap: 1rem;
  }

  .app-header-inner {
    padding: 1rem 1.5rem;
  }
}