:root[data-theme="light"] {
  --bg: #f5f5f5;
  --fg: #111827;
  --accent: #2563eb;
  --card-bg: #ffffff;
  --border: #e5e7eb;
}

:root[data-theme="dark"] {
  --bg: #020617;
  --fg: #e5e7eb;
  --accent: #3b82f6;
  --card-bg: #020617;
  --border: #1f2937;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header,
.site-footer {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.site-footer {
  border-top: 1px solid var(--border);
  border-bottom: none;
  margin-top: 3rem;
  padding: 1rem 0;
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.logo {
  font-weight: 600;
  font-size: 1.1rem;
}

.nav a {
  margin-right: 1rem;
}

.cart-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
}

.cart-count {
  min-width: 1.4rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background-color: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  text-align: center;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}

.site-main {
  padding: 1.5rem 0 2.5rem;
}

.hero {
  padding: 1.5rem 0 2rem;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  margin: 0 0 1.5rem;
  max-width: 40rem;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
}

.stat-value {
  font-size: 1.1rem;
  font-weight: 600;
}

.stat-label {
  font-size: 0.85rem;
  opacity: 0.8;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.95rem;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
}

.btn-secondary {
  background-color: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}

.info-block {
  margin-top: 2rem;
}

.info-block h2 {
  margin-bottom: 0.5rem;
}

.footer-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.footer-copy {
  font-size: 0.85rem;
  opacity: 0.7;
}

.cart-intro {
  max-width: 40rem;
}

.cart-container {
  margin-top: 1rem;
}

.cart-empty {
  margin-top: 1rem;
  font-size: 0.95rem;
  opacity: 0.8;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cart-item {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
}

.cart-item-main {
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.cart-item-meta {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 0.35rem;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.cart-item-controls input[type="number"] {
  width: 4rem;
  padding: 0.2rem 0.3rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--fg);
}

.cart-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.cart-hint {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  opacity: 0.8;
}

.filters {
  margin: 1rem 0 1.5rem;
  padding: 1rem;
  border-radius: 0.5rem;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.field {
  flex: 1 1 180px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.field label {
  font-size: 0.85rem;
  opacity: 0.8;
}

.field input {
  padding: 0.4rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--fg);
}

.filters-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.catalog-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background-color: var(--card-bg);
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  overflow: hidden;
}

.catalog-item .card-media {
  height: 180px;
  background-color: #0f172a0d;
  display: flex;
  align-items: center;
  justify-content: center;
}

.catalog-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.placeholder-photo {
  font-size: 0.85rem;
  opacity: 0.6;
}

.placeholder-photo.large {
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-body {
  padding: 0.75rem 0.9rem 0.85rem;
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 0.98rem;
}

.card-meta div {
  font-size: 0.85rem;
  margin-bottom: 0.15rem;
}

.card-meta .price {
  font-weight: 600;
  margin-top: 0.25rem;
}

.card-actions {
  padding: 0 0.9rem 0.75rem;
}

.btn-add-to-cart {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-add-to-cart.in-cart {
  border-color: #16a34a;
  color: #16a34a;
}

#cart-open-telegram {
  border-color: var(--accent);
  color: var(--accent);
}

#cart-clear,
.cart-item-remove {
  border-color: #dc2626;
  color: #dc2626;
}

.catalog-link {
  color: inherit;
  text-decoration: none;
}

.catalog-link:hover .card-title {
  text-decoration: underline;
}

.pagination {
  margin-top: 1.5rem;
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.pagination .page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.85rem;
}

.pagination .page.current {
  background-color: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.part-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.6fr);
  gap: 1.5rem;
}

.part-main-photo {
  background-color: var(--card-bg);
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.part-main-photo img {
  max-width: 100%;
  max-height: 340px;
  object-fit: contain;
}

.part-thumbs {
  margin-top: 0.5rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.part-thumbs img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 0.25rem;
  border: 2px solid var(--border);
  cursor: pointer;
  opacity: 0.75;
  transition: opacity 0.15s, border-color 0.15s;
}

.part-thumbs img:hover {
  opacity: 1;
}

.part-thumbs img.active {
  border-color: var(--accent);
  opacity: 1;
}

.part-info h1 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.part-meta {
  margin: 0 0 1.25rem;
}

.part-meta div {
  display: flex;
  gap: 0.5rem;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.part-meta dt {
  opacity: 0.7;
}

.part-meta dd {
  margin: 0;
}

.part-contact h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.part-contact ul {
  padding-left: 1.2rem;
}

.admin-form {
  margin: 1rem 0 1.5rem;
  padding: 1rem;
  border-radius: 0.5rem;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  max-width: 480px;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.alert.error {
  background-color: #fee2e2;
  color: #991b1b;
}

.alert.success {
  background-color: #dcfce7;
  color: #166534;
}

@media (max-width: 768px) {
  .header-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .part-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}


/* Плавающая кнопка Telegram */
.tg-float-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  background-color: #2CA5E0;
  color: #fff;
  border-radius: 2rem;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 2px 12px rgba(0,0,0,0.18);
  transition: background-color 0.2s, transform 0.15s;
}
.tg-float-btn:hover {
  background-color: #1a96d4;
  transform: translateY(-2px);
}
[data-theme="dark"] .tg-float-btn {
  background-color: #2CA5E0;
  color: #fff;
}
@media (max-width: 600px) {
  .tg-float-btn span {
    display: none;
  }
  .tg-float-btn {
    padding: 0.75rem;
    border-radius: 50%;
  }
}