:root {
  --ink: #1c2024;
  --ink-soft: #5a6169;
  --line: #e3e6e9;
  --bg: #fafafa;
  --card-bg: #ffffff;
  --accent: #2a6f5e;
  --accent-soft: #e8f3f0;
  --danger-soft: #9a9a9a;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 20, 20, 0.04), 0 4px 14px rgba(20, 20, 20, 0.05);
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--card-bg);
  padding: 28px 0 22px;
}

.header-row .brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tagline {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* Controls */
.controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0 6px;
}

.search-input {
  flex: 1 1 260px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--card-bg);
}

.search-input:focus,
.category-select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.category-select {
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--card-bg);
  min-width: 180px;
}

.result-count {
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 0 0 18px;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 20px;
  padding-bottom: 48px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(20,20,20,0.06), 0 10px 24px rgba(20,20,20,0.08);
}

.card-image-link {
  display: block;
  aspect-ratio: 4 / 3;
  background: #f0f1f2;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
}

.card-title {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}

.card-title:hover {
  color: var(--accent);
}

.card-condition {
  margin: 0;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.card-prices {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 6px;
}

.price-site {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
}

.card-contact {
  margin-top: auto;
  padding-top: 10px;
  text-align: center;
  border-top: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
}

.card-contact:hover {
  color: var(--accent);
}

/* States */
.empty-state,
.error-state {
  text-align: center;
  color: var(--ink-soft);
  padding: 60px 0;
}

.error-state {
  color: #a13a3a;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 32px;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.footer-info {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.info-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.info-value {
  font-size: 0.88rem;
  color: var(--ink);
}

.footer-copy {
  margin: 0;
}

@media (max-width: 480px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
  }
}

/* Product detail page */
.back-link {
  display: inline-block;
  margin: 22px 0 18px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.88rem;
}

.back-link:hover {
  color: var(--accent);
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
  padding-bottom: 56px;
  align-items: start;
}

.product-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  background: #f0f1f2;
  border: 1px solid var(--line);
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.product-title {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.3;
}

.product-condition {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.product-price {
  margin: 4px 0 0;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent);
}

.product-description {
  margin: 12px 0 6px;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.6;
  white-space: pre-line;
}

.product-contact {
  margin-top: 12px;
  display: inline-block;
  text-align: center;
  padding: 13px 22px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  width: fit-content;
}

.product-contact:hover {
  opacity: 0.92;
}

.product-not-found {
  padding: 60px 0;
  text-align: center;
  color: var(--ink-soft);
}

@media (max-width: 700px) {
  .product-detail {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}