:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #142033;
  --muted: #5f6b7a;
  --primary: #163b68;
  --border: #dfe5ec;
  --whatsapp: #25d366;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 68px;
  gap: 16px;
}
.nav nav { display: flex; gap: 18px; flex-wrap: wrap; }
.brand { font-size: 1.2rem; font-weight: 700; color: var(--primary); }

.hero, .section { padding: 32px 0; }
.eyebrow {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin: 0 0 8px;
}
h1, h2, h3 { margin: 0 0 12px; }
.lead { color: var(--muted); max-width: 720px; line-height: 1.6; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }

.btn {
  display: inline-block;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
  font-size: 0.95rem;
}
.btn-primary  { background: var(--primary); color: #fff; }
.btn-secondary { background: #fff; border: 1px solid var(--border); }
.btn-whatsapp { background: var(--whatsapp); color: #fff; }

/* Categories */
.category-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.category-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 18px;
  transition: box-shadow .15s;
}
.category-card:hover { box-shadow: 0 4px 18px rgba(22,59,104,.10); }
.category-card span { display: block; font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.category-card small { color: var(--muted); }

/* Steps */
.steps { display: grid; gap: 14px; }
.steps-large .step { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
  min-width: 36px; height: 36px;
  background: var(--primary); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1rem;
}
.step p { color: var(--muted); margin: 4px 0 0; line-height: 1.5; }

/* Filters */
.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.filters select {
  width: 100%; padding: 10px 12px;
  border-radius: 12px; border: 1px solid var(--border);
  background: #fff; font-size: .95rem;
}

/* Product grid */
.product-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  display: flex; flex-direction: column; gap: 8px;
}
.product-card h3 { font-size: .95rem; margin: 0; }

.product-image, .main-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #eef2f6;
  border-radius: 14px;
}

.badges { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  font-size: .78rem; padding: 5px 10px;
  border-radius: 999px;
  background: #f0f4f8; border: 1px solid var(--border);
  color: var(--muted);
}
.muted { color: var(--muted); font-size: .9rem; }

/* Pagination */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }
.pagination button {
  border: 1px solid var(--border); background: #fff;
  border-radius: 10px; padding: 8px 14px; cursor: pointer; font-size: .9rem;
}
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Product page */
.product-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; }
.gallery-thumbs { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.thumb {
  width: 72px; height: 72px;
  border: 2px solid var(--border); border-radius: 10px;
  object-fit: cover; cursor: pointer; background: #eef2f6;
}
.thumb:hover, .thumb.active { border-color: var(--primary); }
.option-row { margin: 14px 0; }
.color-options { display: flex; gap: 10px; flex-wrap: wrap; }
.color-btn {
  border: 1px solid var(--border); background: #fff;
  border-radius: 999px; padding: 8px 14px; cursor: pointer; font-size: .9rem;
}
.color-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.site-footer {
  border-top: 1px solid var(--border);
  background: #fff; margin-top: 32px;
}
.site-footer .container { padding: 18px 0; color: var(--muted); font-size: .9rem; }

@media (max-width: 800px) {
  .product-layout { grid-template-columns: 1fr; }
  .nav nav { gap: 12px; font-size: .9rem; }
}
@media (max-width: 480px) {
  h1 { font-size: 1.4rem; }
}