:root {
  --primary: #a50034;
  --primary-dark: #7f0128;
  --text: #111111;
  --muted: #5f6368;
  --line: #e6e7eb;
  --surface: #ffffff;
  --surface-soft: #f6f7f9;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans Thai", sans-serif;
  color: var(--text);
  background: var(--surface);
}

.container { width: min(1140px, 92%); margin: 0 auto; }
.narrow { width: min(760px, 92%); margin: 0 auto; }
.section { padding: 60px 0; }
.section-soft { background: var(--surface-soft); padding-bottom: 120px; }

.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 30;
}
.topbar-inner {
  min-height: 68px;
  padding: 10px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 1.2rem;
}
.brand-logo {
  flex-shrink: 0;
  display: block;
}
.top-actions { display: flex; align-items: center; gap: 14px; }
.top-actions a {
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
}
.top-actions a:not(.btn) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--surface-soft);
  color: var(--text);
}

.hero { padding: 52px 0 36px; background: linear-gradient(180deg, var(--surface-soft), var(--surface)); }
.kicker {
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1.3px;
  margin-bottom: 10px;
}
h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 10px; }
.lead { color: var(--muted); margin: 0 0 18px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.stat {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
  padding: 12px;
}
.stat strong { display: block; font-size: 1.2rem; font-weight: 800; }
.stat span { color: var(--muted); font-size: 0.84rem; }

.view-toggle {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.view-btn {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.view-btn:hover {
  color: var(--text);
  border-color: var(--muted);
}
.view-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.category-section { margin-bottom: 34px; }
.category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.category-title { margin: 0; }
.category-count {
  border-radius: 999px;
  background: rgba(165, 0, 52, 0.1);
  color: var(--primary);
  font-weight: 700;
  padding: 5px 10px;
  font-size: 0.8rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.product-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
  display: grid;
}
.product-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #ffffff;
  padding: 10px;
}
.product-content { padding: 12px; }
.product-name {
  margin: 0 0 8px;
  font-size: 0.98rem;
  line-height: 1.4;
}
.product-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.price { color: var(--primary); font-weight: 800; }
.model { color: var(--muted); font-size: 0.8rem; }
.product-actions { display: flex; gap: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.top-actions .btn-primary { color: #fff; }
.top-actions .btn-primary:hover { color: #fff; }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: rgba(165, 0, 52, 0.08); }
.full { width: 100%; }

.lead-copy {
  color: var(--muted);
  margin-bottom: 12px;
}

.lead-points {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.lead-points p {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
}

.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
}
.sticky-cta p { margin: 0; font-weight: 600; color: var(--text); }

@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .topbar-inner {
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
    gap: 10px;
  }
  .top-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .top-actions a,
  .top-actions a:not(.btn),
  .top-actions .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
  .stats { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .category-header { flex-direction: column; align-items: flex-start; }
  .sticky-cta { flex-direction: column; align-items: stretch; }
}