/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

:root {
  --bg: #f7f4ee;
  --bg-soft: #efeae0;
  --ink: #1f1c17;
  --ink-soft: #6b6357;
  --ink-mute: #a39988;
  --line: #d9d2c5;
  --accent: #b8694a;
  --accent-soft: #d8a591;
  --serif: 'Cormorant Garamond', 'Noto Serif TC', Georgia, serif;
  --sans: 'Inter', -apple-system, 'Helvetica Neue', 'Noto Sans TC', sans-serif;
  --max: 1240px;
  --pad: 32px;
  --radius: 4px;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.005em; }

/* ---------- Top nav ---------- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--pad);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 80;
  backdrop-filter: saturate(160%) blur(8px);
  background: rgba(247, 244, 238, 0.92);
}
.nav-left { display: flex; align-items: center; gap: 32px; }
.brand {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.32em;
  font-weight: 400;
}
.brand-tag {
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--ink-mute);
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-links { display: flex; gap: 26px; }
.nav-links a {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color 200ms;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-right { display: flex; gap: 18px; align-items: center; }
.nav-icon {
  width: 22px; height: 22px;
  color: var(--ink-soft);
  transition: color 180ms;
}
.nav-icon:hover { color: var(--ink); }

@media (max-width: 720px) {
  .nav { padding: 16px 20px; }
  .nav-left { gap: 0; }
  .brand { font-size: 16px; letter-spacing: 0.28em; }
  .brand-tag { display: none; }
  .nav-links { display: none; }
}

/* ---------- Hero (index page) ---------- */
.hero {
  padding: 80px var(--pad) 60px;
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}
.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.05;
  margin: 0 0 22px;
  font-style: italic;
}
.hero p {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}
.hero-divider {
  width: 40px;
  height: 1px;
  background: var(--ink-mute);
  margin: 36px auto 0;
}

@media (max-width: 720px) {
  .hero { padding: 50px 20px 40px; }
  .hero p { font-size: 14px; }
}

/* ---------- Marketing strip ---------- */
.demo-banner {
  background: var(--bg-soft);
  padding: 14px var(--pad);
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}
.demo-banner strong { color: var(--ink); font-weight: 500; }

/* ---------- Product grid (index) ---------- */
.shop {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px var(--pad) 100px;
}
.shop-section { margin-bottom: 60px; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.section-title {
  font-size: 24px;
  font-style: italic;
  margin: 0;
}
.section-meta {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px 22px;
}
@media (max-width: 980px) { .product-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .product-grid { grid-template-columns: repeat(2, 1fr); gap: 22px 14px; } }

.product-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 280ms ease;
}
.product-card:hover { transform: translateY(-2px); }
.product-card .ph {
  aspect-ratio: 4 / 5;
  background: var(--bg-soft);
  margin-bottom: 14px;
  overflow: hidden;
  position: relative;
}
.product-card .ph img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 700ms ease;
}
.product-card:hover .ph img { transform: scale(1.04); }
.product-card .meta-cat {
  font-size: 10px; letter-spacing: 0.24em; color: var(--ink-mute);
  text-transform: uppercase; margin-bottom: 6px;
}
.product-card .name {
  font-family: var(--serif);
  font-size: 17px;
  font-style: italic;
  margin-bottom: 4px;
}
.product-card .price {
  font-size: 13px; color: var(--ink-soft);
}

/* ---------- Product detail page ---------- */
.pdp {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px var(--pad) 80px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
}
@media (max-width: 900px) {
  .pdp { grid-template-columns: 1fr; gap: 28px; padding: 24px 20px 60px; }
}

.gallery {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.gallery-main {
  aspect-ratio: 4 / 5;
  background: var(--bg-soft);
  overflow: hidden;
}
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.gallery-thumbs button {
  aspect-ratio: 1;
  background: var(--bg-soft);
  border: 1px solid transparent;
  padding: 0;
  overflow: hidden;
  transition: border-color 180ms;
}
.gallery-thumbs button.active { border-color: var(--ink); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: contain; }

.pdp-info { padding-top: 16px; }
.pdp-cat {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--ink-mute);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.pdp-title {
  font-size: clamp(28px, 4vw, 38px);
  font-style: italic;
  line-height: 1.1;
  margin: 0 0 14px;
}
.pdp-tag {
  font-size: 14px;
  color: var(--ink-soft);
  font-style: italic;
  margin: 0 0 22px;
}
.pdp-divider {
  height: 1px; background: var(--line); margin: 22px 0;
}
.pdp-price {
  font-size: 18px;
  letter-spacing: 0.04em;
  margin-bottom: 22px;
}
.pdp-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
  margin: 0 0 28px;
}
.pdp-options { margin-bottom: 20px; }
.pdp-options-label {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 10px;
}
.pdp-sizes { display: flex; gap: 8px; flex-wrap: wrap; }
.pdp-sizes button {
  padding: 10px 18px;
  border: 1px solid var(--line);
  background: transparent;
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: all 180ms;
}
.pdp-sizes button.on, .pdp-sizes button:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
}
.pdp-cta {
  width: 100%;
  padding: 18px;
  background: var(--ink);
  color: var(--bg);
  border: none;
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  margin-top: 16px;
  transition: background 200ms;
}
.pdp-cta:hover { background: var(--accent); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 32px var(--pad);
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-mute);
  text-transform: uppercase;
}
.footer .pow { color: var(--ink-soft); }

/* ---------- Tiny demo hint chip ---------- */
.demo-hint {
  font-size: 11px;
  background: rgba(184, 105, 74, 0.08);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 999px;
  display: inline-block;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  border: 1px solid rgba(184, 105, 74, 0.2);
}