:root {
  --brand-yellow: #FFC932;
  --brand-dark-gray: #54565A;
  --brand-white: #FFFFFF;

  --text: #54565A;
  --text-secondary: #767676;
  --bg-root: #FFFFFF;
  --bg-default: #F5F5F5;
  --bg-secondary: #F0F0F0;
  --bg-tertiary: #E0E0E0;
  --card-bg: #FFFFFF;
  --border: #E0E0E0;
  --search-bg: #F5F5F5;
  --image-bg: #F5F5F5;
  --accent: #FFC932;
  --error: #E53935;
  --shadow: rgba(0,0,0,0.08);
  --badge-text: #54565A;
}

[data-theme="dark"] {
  --text: #F0F0F0;
  --text-secondary: #9E9E9E;
  --bg-root: #141414;
  --bg-default: #1E1E1E;
  --bg-secondary: #252525;
  --bg-tertiary: #2E2E2E;
  --card-bg: #252525;
  --border: #3A3A3A;
  --search-bg: #252525;
  --image-bg: #1E1E1E;
  --shadow: rgba(0,0,0,0.3);
  --badge-text: #141414;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  background: var(--bg-root);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-root);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  padding-top: env(safe-area-inset-top);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.header-logo {
  height: 28px;
  cursor: pointer;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  color: var(--text);
  transition: background 0.2s;
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
}

.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
}

.search-container {
  position: sticky;
  top: calc(56px + env(safe-area-inset-top));
  z-index: 90;
  background: var(--bg-root);
  padding: 12px 0;
}

.search-bar {
  display: flex;
  align-items: center;
  background: var(--search-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 16px;
  height: 48px;
  gap: 10px;
  transition: border-color 0.2s;
}

.search-bar:focus-within {
  border-color: var(--accent);
}

.search-icon {
  color: var(--text-secondary);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 16px;
  color: var(--text);
  outline: none;
  font-family: 'Roboto', sans-serif;
}

.search-input::placeholder {
  color: var(--text-secondary);
}

.search-clear {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: 18px;
  line-height: 1;
}

.category-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 0 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.category-pills::-webkit-scrollbar { display: none; }

.pill {
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: 13px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.pill:hover {
  border-color: var(--accent);
  color: var(--text);
}

.pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--badge-text);
}

.results-count {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 8px 0 4px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding-top: 8px;
}

.product-card {
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  border: 1px solid var(--border);
  outline: none;
}

.product-card:hover,
.product-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--shadow);
}

.product-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.card-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background: var(--image-bg);
  padding: 16px;
}

.card-image-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--image-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 14px;
}

.card-body {
  padding: 12px 16px 16px;
}

.card-category-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--badge-text);
  font-size: 10px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.card-category-badge.discontinued {
  background: var(--error);
  color: white;
}

.card-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 15px;
  text-transform: uppercase;
  margin-bottom: 2px;
  color: var(--text);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-code {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: 'Roboto Mono', monospace;
}

.skeleton-card {
  pointer-events: none;
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--image-bg);
}

.skeleton-badge {
  width: 80px;
  height: 18px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  margin-bottom: 8px;
}

.skeleton-name {
  width: 70%;
  height: 16px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  margin-bottom: 6px;
}

.skeleton-code {
  width: 50%;
  height: 12px;
  border-radius: 4px;
  background: var(--bg-tertiary);
}

.skeleton-pulse {
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.detail-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

.detail-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 15px;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  cursor: pointer;
  padding: 8px 0;
  margin-bottom: 16px;
}

.back-button:hover {
  text-decoration: underline;
}

.detail-image-gallery {
  position: relative;
  background: var(--image-bg);
  border-radius: 12px;
  overflow: hidden;
}

.detail-main-image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: contain;
  padding: 24px;
}

.detail-main-image-placeholder {
  width: 100%;
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.thumbnail-strip {
  display: flex;
  gap: 8px;
  padding: 8px 12px 12px;
  overflow-x: auto;
  background: var(--bg-secondary);
  scrollbar-width: none;
}

.thumbnail-strip::-webkit-scrollbar { display: none; }

.thumbnail {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  border-radius: 8px;
  object-fit: contain;
  background: var(--card-bg);
  padding: 4px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.15s;
}

.thumbnail.active {
  border-color: var(--accent);
}

.thumbnail:hover {
  border-color: var(--accent);
}

.detail-info {
  flex: 1;
  min-width: 0;
}

.detail-header {
  margin-bottom: 16px;
}

.detail-category-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--badge-text);
  font-size: 11px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.detail-category-badge.discontinued {
  background: var(--error);
  color: white;
}

.detail-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.2;
}

.detail-code {
  font-size: 14px;
  color: var(--text-secondary);
  font-family: 'Roboto Mono', monospace;
  margin-bottom: 12px;
}

.detail-description {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.detail-section {
  margin-bottom: 20px;
}

.detail-section-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text);
  margin-bottom: 10px;
}

.detail-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s;
}

.detail-link:hover {
  border-color: var(--accent);
  background: var(--bg-secondary);
}

.detail-link svg {
  flex-shrink: 0;
  color: var(--accent);
}

.detail-link-label {
  flex: 1;
}

.detail-link-arrow {
  color: var(--text-secondary);
}

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

.meta-item svg {
  flex-shrink: 0;
}

.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  gap: 16px;
}

.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px 0 16px;
  flex-wrap: wrap;
}

.pagination-pages {
  display: flex;
  align-items: center;
  gap: 4px;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.pagination-btn:hover:not(:disabled):not(.active) {
  border-color: var(--accent);
  background: var(--bg-secondary);
}

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

.pagination-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--badge-text);
  font-weight: 700;
}

.pagination-num {
  min-width: 40px;
  padding: 0 8px;
}

.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 40px;
  color: var(--text-secondary);
  font-size: 14px;
  letter-spacing: 2px;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  color: var(--text-secondary);
  font-size: 14px;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text);
}

.scroll-top {
  position: fixed;
  bottom: max(24px, env(safe-area-inset-bottom));
  right: max(24px, env(safe-area-inset-right));
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--badge-text);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px var(--shadow);
  transition: opacity 0.2s, transform 0.2s;
  z-index: 50;
}

.scroll-top:hover {
  transform: scale(1.1);
}

.install-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  z-index: 100;
  box-shadow: 0 -2px 10px var(--shadow);
}

.install-banner.show {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.install-banner-text {
  font-size: 14px;
  color: var(--text);
}

.install-banner-btn {
  background: var(--accent);
  color: var(--badge-text);
  border: none;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}

.install-banner-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 20px;
  padding: 4px;
}

.ios-install-banner {
  flex-direction: row;
  align-items: center;
}

.ios-install-content {
  flex: 1;
}

.ios-install-text {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}

.ios-install-text strong {
  display: block;
  width: 100%;
  margin-bottom: 2px;
}

.ios-install-text svg {
  flex-shrink: 0;
  color: var(--accent);
}

@media (max-width: 600px) {
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
  }
  .card-body {
    padding: 8px 12px 12px;
  }
  .card-name {
    font-size: 13px;
  }
  .card-category-badge {
    font-size: 9px;
  }
  .detail-name {
    font-size: 20px;
  }
  .pagination-bar {
    gap: 6px;
  }
  .pagination-btn {
    min-width: 36px;
    height: 36px;
    font-size: 13px;
    padding: 0 8px;
  }
  .pagination-prev,
  .pagination-next {
    font-size: 12px;
    padding: 0 10px;
  }
}

@media (min-width: 768px) {
  .main {
    padding: 24px;
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
  }
  .detail-container {
    padding: 24px;
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
}

@media (min-width: 900px) {
  .detail-layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .detail-image-gallery {
    flex: 1;
    min-width: 0;
    max-width: 55%;
    position: sticky;
    top: calc(72px + env(safe-area-inset-top));
  }
  .detail-info {
    flex: 1;
    min-width: 0;
  }
}