/* ==========================================================
   Rental — Dark Luxury Theme
   Brand: THIRD KAGURA / Rental Department - monochrome dark, no gold
   Infra: rental.thirdkagura.com
   ========================================================== */

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --surface-2: #1c1c1c;
  --accent: #ffffff;
  --accent-soft: rgba(255, 255, 255, 0.10);
  --text: #f0f0f0;
  --text-muted: #888;
  --border: rgba(255, 255, 255, 0.08);

  --font-display: "Bebas Neue", "Helvetica Neue", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 4px;
  --max-width: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ============================
   Hero
   ============================ */
.hero {
  padding: 80px 24px 60px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.brand-mark {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 32px;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 32px;
  letter-spacing: 0.18em;
  color: var(--accent);
}
.brand-by {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 84px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
}
.hero-cta {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ============================
   Buttons
   ============================ */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover {
  background: transparent;
  color: var(--accent);
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  color: var(--accent);
}
.btn-ghost:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

/* ============================
   Filter Bar
   ============================ */
.filter-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}
.filter-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}
.search {
  flex: 1 1 240px;
  min-width: 200px;
  padding: 12px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
}
.search::placeholder { color: var(--text-muted); }
.search:focus {
  outline: none;
  border-color: var(--accent);
}
.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  flex: 2 1 600px;
}
.chip {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--text);
}
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* ============================
   Catalog
   ============================ */
.catalog {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}
.catalog-loading {
  text-align: center;
  color: var(--text-muted);
  padding: 80px 0;
}
.cat-section {
  margin-bottom: 64px;
}
.cat-heading {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.12em;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 24px;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.product-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 12px;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-body {
  padding: 16px;
}
.product-name {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.3;
}
.product-price {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: var(--accent);
}
.product-price-unit {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 300;
}

/* ============================
   Footer CTA
   ============================ */
.footer-cta {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 72px 24px;
  text-align: center;
}
.footer-inner {
  max-width: 720px;
  margin: 0 auto;
}
.footer-headline {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}
.footer-sub {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 16px;
}
.legal {
  margin-top: 48px;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  line-height: 1.8;
}

/* ============================
   Mobile (480px and below)
   ============================ */
@media (max-width: 480px) {
  .hero { padding: 56px 20px 44px; }
  .hero-headline { font-size: 44px; }
  .hero-sub { font-size: 15px; }
  .btn { padding: 12px 20px; font-size: 13px; }
  .hero-cta { flex-direction: column; gap: 10px; width: 100%; max-width: 280px; margin: 0 auto; }
  .hero-cta .btn { width: 100%; }

  .filter-bar { padding: 12px 16px; }
  .filter-inner { gap: 10px; }
  .search { flex: 1 1 100%; padding: 10px 14px; }
  .chips { gap: 6px; }
  .chip { padding: 6px 12px; font-size: 12px; }

  .catalog { padding: 32px 16px; }
  .cat-heading { font-size: 22px; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
  .product-body { padding: 12px; }
  .product-name { font-size: 13px; }
  .product-price { font-size: 16px; }

  .footer-cta { padding: 56px 20px; }
}