:root {
  --bg: #eef2f0;
  --bg-deep: #e2e8e5;
  --ink: #15201c;
  --ink-soft: #3f4d47;
  --muted: #6b7872;
  --card: #ffffff;
  --line: #cfd8d3;
  --accent: #0b5f52;
  --accent-2: #1f4b7a;
  --chip: #d7ebe6;
  --shadow: 0 1px 0 rgba(21, 32, 28, 0.04);
  --radius: 14px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #d5e5e1 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #d9e2ec 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.shell {
  width: min(1240px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

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

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.45rem 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-soft);
  border: 1px solid transparent;
}

.nav-link:hover {
  background: var(--bg-deep);
  color: var(--ink);
}

.nav-link.is-active {
  background: var(--chip);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 25%, transparent);
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand span {
  color: var(--accent);
}

.stats {
  color: var(--muted);
  font-size: 0.82rem;
  max-width: 42ch;
  line-height: 1.3;
}

.hero {
  padding: 2.2rem 0 1.4rem;
  display: grid;
  gap: 0.75rem;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 550;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  max-width: 16ch;
}

.hero p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 46ch;
  font-size: 1.02rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  padding: 0.2rem 0 1.4rem;
  align-items: stretch;
}

.controls-search {
  flex: 1 1 240px;
  min-width: 0;
}

.controls .select,
.controls .btn {
  flex: 0 1 auto;
}

.check-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  white-space: nowrap;
}

.cat-mobile-toggle {
  display: none;
}

.layout-cats {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.25rem;
  align-items: start;
  padding-bottom: 1rem;
}

.cat-nav {
  position: sticky;
  top: 4.5rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  max-height: calc(100vh - 6rem);
  overflow: auto;
}

@media (max-width: 900px) {
  .layout-cats {
    grid-template-columns: 1fr;
  }

  .cat-mobile-toggle {
    display: inline-flex;
    width: 100%;
    justify-content: center;
    min-height: 2.75rem;
    order: -1;
  }

  .cat-nav {
    position: static;
    top: auto;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    border-width: 0;
    opacity: 0;
    margin: 0;
    pointer-events: none;
    transition: max-height 0.25s ease, opacity 0.2s ease, padding 0.2s ease;
  }

  .cat-nav.is-open {
    max-height: min(62vh, 28rem);
    overflow: auto;
    padding: 0.75rem;
    border-width: 1px;
    opacity: 1;
    pointer-events: auto;
    margin-bottom: 0.25rem;
    -webkit-overflow-scrolling: touch;
  }

  .cat-nav-head {
    display: none;
  }
}

.cat-nav-head {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.05rem;
  padding: 0.4rem 0.55rem 0.7rem;
}

.cat-item {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.88rem;
  padding: 0.55rem 0.65rem;
  border-radius: 10px;
  cursor: pointer;
}

.cat-item span {
  color: var(--muted);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.cat-item:hover {
  background: var(--bg-deep);
  color: var(--ink);
}

.cat-item.active {
  background: var(--chip);
  color: var(--accent);
  font-weight: 650;
}

.cat-item.active span {
  color: var(--accent);
}

.cat-group {
  margin-bottom: 0.15rem;
}

.cat-l1-row {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.cat-toggle {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  width: 1.6rem;
  flex-shrink: 0;
  border-radius: 8px;
  font-size: 0.7rem;
  line-height: 1;
  transition: transform 0.15s ease;
}

.cat-group.open > .cat-l1-row .cat-toggle {
  transform: rotate(90deg);
  color: var(--accent);
}

.cat-l1-row .cat-item {
  flex: 1;
}

.cat-children {
  display: none;
  padding: 0.1rem 0 0.35rem 1.35rem;
}

.cat-group.open > .cat-children {
  display: block;
}

.cat-l2 {
  font-size: 0.82rem;
  padding: 0.4rem 0.55rem;
  color: var(--ink-soft);
}

.cat-main {
  min-width: 0;
}

.price-ladder {
  font-size: 0.82rem;
  line-height: 1.45;
  min-width: 180px;
}

.price-ladder .more {
  color: var(--muted);
  font-size: 0.78rem;
}

.price-ladder em {
  color: var(--muted);
  font-style: normal;
  font-size: 0.78rem;
}

.field,
.select,
.btn {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 0.85rem 1.1rem;
  font: inherit;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.field:focus,
.select:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-color: var(--accent);
}

.btn {
  cursor: pointer;
  background: var(--accent);
  color: #f7fffc;
  border-color: var(--accent);
  font-weight: 600;
}

.btn.secondary {
  background: transparent;
  color: var(--ink);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--chip);
  color: var(--accent);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
}

.chip.warm {
  background: #dce6f2;
  color: var(--accent-2);
}

.chip.cool {
  background: #e4efe8;
  color: #2d5a3d;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  padding-bottom: 3rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}

.card-media {
  aspect-ratio: 1;
  background:
    linear-gradient(145deg, #e4ece9, #f3f6f5);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.75rem;
}

.card-media .ph {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
}

.card-body {
  padding: 0.9rem 1rem 1.1rem;
  display: grid;
  gap: 0.35rem;
  flex: 1;
}

.card-body .supplier {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}

.card-body h2 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.25;
  font-weight: 650;
}

.card-body .code {
  color: var(--muted);
  font-size: 0.82rem;
}

.card-body .price {
  margin-top: auto;
  padding-top: 0.5rem;
  font-weight: 700;
  color: var(--accent);
}

.pager {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  align-items: center;
  padding: 0 0 3rem;
}

.pager button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Product page */
.back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink-soft);
  margin: 1.2rem 0 0.6rem;
  font-weight: 600;
}

.product-layout {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 1.5rem;
  padding-bottom: 2rem;
}

@media (max-width: 900px) {
  .product-layout {
    grid-template-columns: 1fr;
  }
}

.gallery {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

.gallery-main {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: #e8efec;
  border-radius: 10px;
  overflow: hidden;
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 1rem;
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.thumbs button {
  border: 1px solid var(--line);
  background: #eef3f1;
  border-radius: 8px;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
}

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

.thumbs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
}

.panel h1 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
}

.panel .lead {
  color: var(--ink-soft);
  margin: 0 0 1rem;
}

.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0.35rem 0.8rem;
  font-size: 0.92rem;
  margin: 1rem 0;
}

.kv dt {
  color: var(--muted);
}

.kv dd {
  margin: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 1.6rem 0 0.8rem;
}

.variant-table,
.print-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.variant-table th,
.variant-table td,
.print-table th,
.print-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.variant-table th,
.print-table th {
  background: var(--bg-deep);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.35rem;
}

.variant-thumb {
  width: 48px;
  height: 48px;
  object-fit: contain;
  background: #e8efec;
  border-radius: 6px;
}

.empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}

.loading {
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  margin-bottom: 1.5rem;
}

.table-scroll .variant-table,
.table-scroll .print-table {
  border: 0;
  border-radius: 0;
  margin: 0;
  min-width: 640px;
}

.table-scroll::after {
  content: "";
  display: block;
}

/* —— Mobile / touch —— */
@media (max-width: 720px) {
  .shell {
    width: min(1240px, calc(100% - 1.25rem));
  }

  .topbar-inner {
    padding: 0.65rem 0;
  }

  .brand {
    font-size: 1.12rem;
  }

  .top-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .stats {
    width: 100%;
    max-width: none;
    font-size: 0.75rem;
    order: 3;
  }

  .hero {
    padding: 1.35rem 0 1rem;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(1.55rem, 7vw, 2.1rem);
  }

  .hero p {
    font-size: 0.95rem;
  }

  .controls {
    flex-direction: column;
  }

  .controls-search,
  .controls .select,
  .controls .btn,
  .check-label {
    width: 100%;
    flex: 1 1 auto;
  }

  .field,
  .select,
  .btn,
  textarea,
  input[type="search"],
  input[type="file"],
  input[type="password"] {
    font-size: 16px; /* evita zoom iOS */
    min-height: 2.85rem;
  }

  .btn {
    justify-content: center;
    text-align: center;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.7rem;
    padding-bottom: 2rem;
  }

  .card-body {
    padding: 0.7rem 0.75rem 0.85rem;
    gap: 0.25rem;
  }

  .card-body h2 {
    font-size: 0.9rem;
  }

  .card-body .code,
  .card-body .supplier {
    font-size: 0.68rem;
  }

  .card-media img {
    padding: 0.45rem;
  }

  .pager {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-bottom: 2.5rem;
  }

  .pager .btn {
    flex: 1 1 40%;
  }

  .kv {
    grid-template-columns: 1fr;
    gap: 0.15rem 0;
  }

  .kv dt {
    margin-top: 0.55rem;
    font-size: 0.78rem;
  }

  .panel {
    padding: 1rem;
  }

  .gallery {
    padding: 0.75rem;
  }

  .gallery-main img {
    padding: 0.5rem;
  }

  .thumbs {
    grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
  }

  .section-title {
    font-size: 1.1rem;
    margin: 1.2rem 0 0.65rem;
  }

  .price-ladder {
    min-width: 150px;
  }

  .back {
    margin: 0.9rem 0 0.45rem;
    min-height: 2.4rem;
    align-items: center;
  }
}

@media (max-width: 420px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .nav-link {
    font-size: 0.82rem;
    padding: 0.3rem 0.65rem;
  }
}

@media (hover: none) {
  .card:hover,
  .ai-card:hover {
    transform: none;
  }
}

@supports (padding: env(safe-area-inset-bottom)) {
  body {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    padding-bottom: env(safe-area-inset-bottom);
  }

  .topbar {
    padding-top: env(safe-area-inset-top);
  }
}