:root {
  --green: #2d7a4f;
  --green-light: #e8f5ee;
  --green-mid: #4a9e6a;
  --red: #c0392b;
  --red-light: #fdf0ee;
  --amber: #b45309;
  --amber-light: #fef3cd;
  --gray-50: #f4f4f2;
  --gray-100: #e8e8e4;
  --gray-300: #c0bfb8;
  --gray-400: #a8a6a0;
  --gray-500: #8a8880;
  --gray-700: #4a4945;
  --gray-900: #1a1916;
  --off-white: #f9f9f7;
  --surface: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --lotte: #0057a8;
  --superindo: #e8211d;
  --print-bg: #ffffff;
  --print-color: #000000;
}

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

body {
  font-family:
    "Plus Jakarta Sans",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--off-white);
  color: var(--gray-900);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--gray-100);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: -0.02em;
}

.freshness-bar {
  font-size: 0.8rem;
  color: var(--gray-700);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.freshness-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.tab-bar {
  max-width: 1200px;
  margin: 0.75rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  gap: 0.4rem;
}
.tab {
  padding: 0.45rem 1.1rem;
  border-radius: 20px;
  border: 1px solid var(--gray-100);
  background: var(--surface);
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--gray-700);
}
.tab:hover {
  border-color: var(--gray-300);
}
.tab.active {
  background: var(--green);
  color: white;
  border-color: var(--green);
}
.tab-view {
  display: none;
}
.tab-view.active {
  display: block;
}
.dummy-badge {
  display: none;
  background: var(--amber);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  letter-spacing: 0.03em;
  margin-left: 0.5rem;
}
.promo-type-group {
  margin-bottom: 1.5rem;
}
.promo-type-header {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
  padding-bottom: 0.3rem;
  border-bottom: 2px solid var(--gray-100);
}
.promo-card {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  box-shadow: var(--shadow-sm);
}
.promo-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}
.promo-count-badge {
  background: var(--green-light);
  color: var(--green);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}
.promo-card-meta {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.3rem;
}
.promo-store-badge {
  display: inline-block;
}
.brochure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.brochure-card {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  box-shadow: var(--shadow-sm);
}

#search-bar {
  max-width: 1200px;
  margin: 1rem auto 0;
  padding: 0 1.5rem;
  width: 100%;
}

#search-bar input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

#search-bar input:focus {
  outline: none;
  border-color: var(--green-mid);
  box-shadow: 0 0 0 3px var(--green-light);
}

#controls {
  max-width: 1200px;
  margin: 1rem auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.filter-chips {
  display: flex;
  gap: 0.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  border: 1px solid var(--gray-100);
  background: var(--surface);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--gray-700);
}

.chip:hover {
  border-color: var(--gray-300);
}
.chip.active {
  background: var(--green);
  color: white;
  border-color: var(--green);
}

.sort-select {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: inherit;
  background: var(--surface);
  cursor: pointer;
  color: var(--gray-700);
}

main#product-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.5rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  flex: 1;
  align-content: start;
  align-items: start;
}

@media (max-width: 1200px) {
  #product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  #product-grid {
    grid-template-columns: 1fr;
  }
}

.product-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1rem;
  cursor: pointer;
  transition:
    box-shadow 0.2s,
    transform 0.15s;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 180px;
}

.product-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.product-card.expanded {
  grid-column: 1 / -1;
  box-shadow: var(--shadow-lg);
}

.card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-900);
  line-height: 1.35;
}

.product-unit {
  font-size: 0.8rem;
  color: var(--gray-700);
  margin-top: 0.2rem;
}

.card-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--gray-100);
}

.price-tag {
  font-family: "DM Mono", monospace;
  font-weight: 500;
  font-size: 1rem;
  color: var(--green);
  white-space: nowrap;
}

.price-label {
  font-size: 0.68rem;
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 400;
  color: var(--gray-700);
  margin-bottom: 2px;
  letter-spacing: 0.02em;
  display: none;
}

.store-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: var(--gray-700);
  text-align: right;
}

.store-rows {
  margin-top: 0.6rem;
}

.store-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0;
  font-size: 0.85rem;
}

.store-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.store-name {
  flex: 1;
  color: var(--gray-700);
}
.store-price {
  font-family: "DM Mono", monospace;
  font-size: 0.85rem;
}
.original-price {
  text-decoration: line-through;
  color: var(--gray-400);
  font-size: 0.8rem;
  margin-right: 4px;
}

.promo-top-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  margin-top: auto;
  padding-top: 8px;
  letter-spacing: 0.01em;
  align-self: flex-start;
}
.promo-top-badge.promo-green {
  background: var(--green-light);
  color: var(--green);
}
.promo-top-badge.promo-red {
  background: var(--red-light);
  color: var(--red);
}
.promo-top-badge.promo-amber {
  background: var(--amber-light);
  color: var(--amber);
}

.promo-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  background: var(--green-light);
  color: var(--green);
  font-size: 0.65rem;
  font-weight: 600;
  border-radius: 3px;
  vertical-align: middle;
}
.promo-badge.promo-red {
  background: var(--red-light);
  color: var(--red);
}
.promo-badge.promo-green {
  background: var(--green-light);
  color: var(--green);
}
.promo-badge.promo-amber {
  background: var(--amber-light);
  color: var(--amber);
}
.filter-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
}

.low-conf-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--amber-light);
  color: var(--amber);
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 500;
  margin-top: 0.4rem;
}

.detail-panel {
  display: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-100);
}

.product-card.expanded .detail-panel {
  display: block;
}

.detail-section {
  margin-bottom: 1rem;
}
.detail-section h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.detail-store-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.35rem;
}

.detail-store-row.cheapest {
  background: var(--green-light);
  border: 1px solid var(--green-mid);
}

.detail-store-row .brochure-link {
  font-size: 0.78rem;
  color: var(--green);
  text-decoration: none;
  margin-left: auto;
  white-space: nowrap;
}

.detail-store-row .brochure-link:hover {
  text-decoration: underline;
}

.chart-container {
  width: 100%;
  height: 120px;
  position: relative;
}

.chart-container canvas {
  width: 100%;
  height: 100%;
}

.no-history {
  font-size: 0.85rem;
  color: var(--gray-700);
  text-align: center;
  padding: 1.5rem;
}

footer {
  background: var(--surface);
  border-top: 1px solid var(--gray-100);
  padding: 1rem 1.5rem;
  font-size: 0.82rem;
  color: var(--gray-700);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.review-warning {
  color: var(--amber);
  font-weight: 500;
}

#loading,
#error-state,
#empty-state,
#no-results {
  display: none;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
  width: 100%;
}

.skeleton-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.skeleton-line {
  height: 14px;
  background: var(--gray-100);
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.skeleton-line.short {
  width: 60%;
}
.skeleton-line.medium {
  width: 80%;
}

@keyframes shimmer {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: 200px 0;
  }
}

.skeleton-line {
  background: linear-gradient(
    90deg,
    var(--gray-100) 25%,
    var(--gray-50) 50%,
    var(--gray-100) 75%
  );
  background-size: 400px 100%;
  animation: shimmer 1.5s infinite;
}

#error-state .error-box,
#empty-state .empty-box,
#no-results .no-results-box {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

#error-state h3 {
  color: var(--red);
  margin-bottom: 0.5rem;
}
#empty-state h3 {
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}
#no-results h3 {
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

#error-state p,
#empty-state p,
#no-results p {
  color: var(--gray-700);
  margin-bottom: 1rem;
}

.retry-btn {
  padding: 0.5rem 1.2rem;
  background: var(--green);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.retry-btn:hover {
  background: var(--green-mid);
}

.warning-banner {
  background: var(--amber-light);
  color: var(--amber);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  margin: 0.5rem 1.5rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  display: none;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

.warning-banner button {
  background: none;
  border: 1px solid var(--amber);
  color: var(--amber);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
}

.sample-banner {
  background: var(--amber-light);
  color: var(--amber);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  margin: 0.5rem 1.5rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  display: none;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 500;
}

.sample-banner::before {
  content: "\26A0";
  margin-right: 0.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--green-mid);
  outline-offset: 2px;
}
.product-card:focus-visible {
  box-shadow: var(--shadow);
  outline: 2px solid var(--green-mid);
  outline-offset: 2px;
}
.tab:focus-visible, .chip:focus-visible, .btn:focus-visible, .filter-btn:focus-visible, .filter-chips .chip:focus-visible {
  outline: 2px solid var(--green-mid);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .freshness-dot, .skeleton-line { animation: none; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --green-light: #1a3a2a;
    --green-mid: #5ab87a;
    --red-light: #3a1a1a;
    --amber-light: #3a2a1a;
    --gray-50: #1a1a1a;
    --gray-100: #2a2a2a;
    --gray-300: #4a4a4a;
    --gray-400: #6a6a6a;
    --gray-500: #8a8a8a;
    --gray-700: #c0c0c0;
    --gray-900: #e8e8e8;
    --off-white: #121212;
    --surface: #1a1a1a;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  }

  .freshness-dot {
    background: var(--green-mid);
  }

  #search-bar input:focus {
    box-shadow: 0 0 0 3px rgba(90, 184, 122, 0.3);
  }

  .promo-count-badge {
    color: var(--green-mid);
  }

  .price-tag {
    color: var(--green-mid);
  }

  .detail-store-row.cheapest {
    border-color: var(--green-mid);
  }

  .detail-store-row .brochure-link {
    color: var(--green-mid);
  }

  .retry-btn:hover {
    background: var(--green-mid);
  }

  .retry-btn {
    background: var(--green-mid);
  }

  .tab.active {
    background: var(--green-mid);
    border-color: var(--green-mid);
  }

  .chip.active {
    background: var(--green-mid);
    border-color: var(--green-mid);
  }

  .product-col .price {
    color: var(--green-mid);
  }

  .btn-approve {
    background: var(--green-mid);
  }

  .btn-approve:hover {
    background: #6ac88a;
  }

  .promo-top-badge.promo-green {
    background: var(--green-light);
    color: var(--green-mid);
  }

  .promo-badge {
    background: var(--green-light);
    color: var(--green-mid);
  }
  .promo-badge.promo-green {
    background: var(--green-light);
    color: var(--green-mid);
  }

  header, .tab, .promo-card, .brochure-card, #search-bar input, .chip, .sort-select, .product-card, footer, .skeleton-card, #error-state .error-box, #empty-state .empty-box, #no-results .no-results-box {
    background: var(--surface);
  }
}

@media print {
  #search-bar,
  #controls,
  #load-more-sentinel,
  .freshness-bar {
    display: none !important;
  }
  #product-grid {
    display: block !important;
  }
  .product-card {
    break-inside: avoid;
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  .product-card:nth-child(10n) {
    page-break-after: always;
  }
  body {
    background: var(--print-bg);
    color: var(--print-color);
  }
  footer::after {
    content: "Printed: " attr(data-timestamp);
  }
}