:root {
  --ink: #222222;
  --ink-soft: #2d2d2d;
  --muted: #676767;
  --line: #e8e8e8;
  --bg: #ffffff;
  --bg-soft: #f8f8f8;
  --accent: #f8d35a;
  --accent-ink: #2d2d2d;
  --danger: #c9302c;
  --max: 1280px;
  --font: "Quicksand", "Montserrat", "Noto Sans Thai", "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  font-weight: 400;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

.container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

.topbar {
  background: var(--ink-soft);
  color: #fff;
  text-align: center;
  font-size: 12px;
  letter-spacing: .04em;
  padding: .55rem 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  min-height: 72px;
}
.brand {
  grid-column: 2;
  text-align: center;
  font-weight: 700;
  letter-spacing: .18em;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  text-transform: uppercase;
}
.header-tools {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: .75rem;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.header-tools a:hover { color: #000; }
.lang-currency {
  display: flex;
  gap: .4rem;
  align-items: center;
}
.lang-currency select {
  border: 1px solid var(--line);
  background: #fff;
  padding: .35rem .45rem;
  border-radius: 0;
}
.cart-link { position: relative; }
.cart-badge {
  position: absolute;
  top: -8px;
  right: -12px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 10px;
  min-width: 16px;
  height: 16px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.nav-main {
  border-top: 1px solid var(--line);
}
.nav-main ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .2rem 1.5rem;
  padding: .85rem 0;
}
.nav-main a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.nav-main a:hover,
.nav-main a.is-active { border-bottom: 1px solid var(--ink); }

.hero {
  position: relative;
  min-height: clamp(420px, 72vh, 720px);
  background:
    linear-gradient(180deg, rgba(0,0,0,.18), rgba(0,0,0,.35)),
    url("../images/hero.jpg") center/cover no-repeat,
    linear-gradient(135deg, #1a1a1a, #4a4a4a 45%, #cfc7b8);
  color: #fff;
  display: grid;
  align-items: end;
}
.hero-inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto 4rem;
  text-align: center;
}
.hero h1 {
  margin: 0 0 .5rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: .2em;
  font-weight: 700;
  text-transform: uppercase;
}
.hero p {
  margin: 0 0 1.5rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: 14px;
  opacity: .92;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.4rem;
  border: 1px solid transparent;
  background: #fff;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: .2s ease;
}
.btn:hover { background: var(--accent); }
.btn-dark { background: var(--ink-soft); color: #fff; }
.btn-dark:hover { background: #000; color: #fff; }
.btn-outline { background: transparent; border-color: currentColor; }
.btn-outline:hover { background: #fff; color: var(--ink); }

.section { padding: 3.5rem 0; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.section-head h2 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 700;
}
.section-head a {
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--ink);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem 1.1rem;
}
.product-card { position: relative; }
.product-media {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--bg-soft);
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.product-card:hover .product-media img { transform: scale(1.04); }
.product-actions {
  position: absolute;
  inset: auto 0 0 0;
  padding: .8rem;
  display: grid;
  opacity: 0;
  transform: translateY(8px);
  transition: .25s ease;
}
.product-card:hover .product-actions { opacity: 1; transform: none; }
.badge-sold {
  position: absolute;
  top: .75rem;
  left: .75rem;
  background: rgba(45,45,45,.88);
  color: #fff;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .3rem .55rem;
}
.product-info { padding: .85rem .1rem 0; text-align: center; }
.product-info h3 {
  margin: 0 0 .35rem;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  min-height: 2.5em;
}
.product-price {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}
.product-price s {
  color: var(--muted);
  font-weight: 400;
  margin-right: .35rem;
}

.page-hero {
  padding: 2.5rem 0 1rem;
  text-align: center;
}
.page-hero h1 {
  margin: 0;
  letter-spacing: .16em;
  text-transform: uppercase;
  font-size: 1.5rem;
}

.product-detail {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.product-gallery {
  background: var(--bg-soft);
  aspect-ratio: 3/4;
  overflow: hidden;
}
.product-gallery img { width: 100%; height: 100%; object-fit: cover; }
.product-buy h1 {
  margin: 0 0 .75rem;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.product-buy .price {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.qty-row {
  display: flex;
  gap: .75rem;
  align-items: center;
  margin: 1.25rem 0;
}
.qty-row input {
  width: 72px;
  height: 44px;
  border: 1px solid var(--line);
  text-align: center;
}
.product-desc {
  margin-top: 1.5rem;
  color: var(--muted);
  white-space: pre-line;
}

.cart-table, .admin-table {
  width: 100%;
  border-collapse: collapse;
}
.cart-table th, .cart-table td,
.admin-table th, .admin-table td {
  border-bottom: 1px solid var(--line);
  padding: .9rem .4rem;
  text-align: left;
  vertical-align: middle;
}
.cart-table img { width: 72px; height: 96px; object-fit: cover; }
.cart-summary, .checkout-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 2rem;
  margin-top: 1.5rem;
}
.panel {
  background: var(--bg-soft);
  padding: 1.25rem;
}
.panel h3 {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: 14px;
}
.form-row { margin-bottom: .9rem; }
.form-row label {
  display: block;
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: .35rem;
}
.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  border: 1px solid #ddd;
  background: #fff;
  padding: .7rem .75rem;
}
.flash {
  padding: .85rem 1rem;
  margin: 1rem 0;
  background: #fcf8e3;
  border: 1px solid #f7e1b5;
}
.flash-error { background: #f2dede; border-color: #ebcccc; color: #a94442; }
.flash-success { background: #dff0d8; border-color: #d0e9c6; color: #3c763d; }

.site-footer {
  background: var(--ink-soft);
  color: #fff;
  margin-top: 3rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid #9b9b9b;
}
.site-footer h4 {
  margin: 0 0 1rem;
  font-size: 14px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.site-footer p, .site-footer a, .site-footer li {
  font-size: 13px;
  color: #fff;
  opacity: .92;
}
.site-footer li + li { margin-top: .45rem; }
.copyright {
  text-align: center;
  font-size: 12px;
  padding: 1rem;
}

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

@media (max-width: 980px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .product-detail,
  .cart-summary,
  .checkout-grid,
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .header-row {
    grid-template-columns: 1fr;
    padding: .75rem 0;
  }
  .brand, .header-tools { grid-column: 1; justify-content: center; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem .7rem; }
  .product-actions { opacity: 1; transform: none; }
  .nav-main ul { gap: .55rem 1rem; }
}