@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Playfair+Display:wght@600;700&display=swap");

/* Base */
:root {
  --bg: #f5f2eb;
  --paper: #fffdf8;
  --ink: #1f2224;
  --muted: #5e6468;
  --line: #d8d2c5;
  --brand: #1c4f45;
  --brand-strong: #123d35;
  --accent: #c06a3f;
  --radius: 14px;
  --container: 1120px;
  --shadow: 0 10px 30px rgba(26, 26, 26, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", "Avenir Next", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% -10%, #ece3d2 0%, transparent 36%),
    radial-gradient(circle at 95% 5%, #d9ece8 0%, transparent 28%),
    var(--bg);
  line-height: 1.55;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.section {
  padding: 4rem 0;
}

.eyebrow {
  margin: 0 0 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand);
  font-size: 0.8rem;
}

h1,
h2,
h3 {
  font-family: "Playfair Display", "Georgia", serif;
  line-height: 1.2;
  margin-top: 0;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2.1rem);
}

.zh {
  display: block;
  color: var(--muted);
  font-size: 0.7em;
  margin-top: 0.4rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.5rem 0.75rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
  background: rgba(255, 253, 248, 0.88);
}

.nav-wrap {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: "Playfair Display", "Georgia", serif;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.logo {
  height: 40px;
  width: auto;
  border-radius: 4px;
}

.brand-text {
  font-family: "Playfair Display", "Georgia", serif;
}

.menu-toggle {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
}

.site-nav {
  position: absolute;
  inset: 70px 0 auto 0;
  display: none;
  flex-direction: column;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-nav a {
  padding: 0.9rem 1rem;
  text-decoration: none;
  border-top: 1px solid var(--line);
}

.site-nav a.active {
  color: var(--brand);
  font-weight: 600;
}

.site-nav.open {
  display: flex;
}

/* Language Selector */
.lang-toggle {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  z-index: 40;
}

.lang-menu {
  position: absolute;
  top: 70px;
  right: 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: none;
  flex-direction: column;
  min-width: 120px;
  z-index: 45;
}

.lang-menu.open {
  display: flex;
}

.lang-menu button {
  padding: 0.75rem 1rem;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 150ms ease;
}

.lang-menu button:hover {
  background: var(--bg);
}

.lang-menu button[aria-current="true"] {
  background: var(--line);
  font-weight: 600;
  color: var(--brand);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 180ms ease, background-color 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, white);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-strong);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
}

/* Home */
.hero {
  padding: 5rem 0 4.25rem;
}

.hero-grid {
  display: grid;
  gap: 1.6rem;
  align-items: center;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.hero-panel {
  min-height: 320px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, #f4eee2, #dfebe7);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-label,
.mock-photo {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.surface {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-grid {
  display: grid;
  gap: 1rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.cta-band {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(130deg, #f8f5ef, #eaf3f1);
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
  align-items: center;
}

/* Catalog */
.catalog-tools {
  margin: 1.1rem 0 1.5rem;
  display: grid;
  gap: 0.55rem;
}

.catalog-tools input,
.catalog-tools select,
.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0.6rem 0.75rem;
  font: inherit;
}

.catalog-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.product-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  overflow: hidden;
  display: grid;
}

.product-image {
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, #efe5d8, #dce9e6);
}

.product-content {
  padding: 1rem;
}

.product-meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.empty-state {
  margin-top: 1rem;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 1rem;
  color: var(--muted);
}

/* Product detail */
.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  text-decoration: none;
  color: var(--brand);
}

.product-detail {
  display: grid;
  gap: 1rem;
}

.product-gallery {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 320px;
  background: linear-gradient(150deg, #f2e8db, #ddeae6);
}

.product-info {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 1rem;
}

.spec-list {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid #e9e3d7;
  padding-bottom: 0.45rem;
}

/* Showroom + contact */
.showroom-layout {
  display: grid;
  gap: 1rem;
}

.quote-form {
  max-width: 760px;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--radius);
  padding: 1rem;
  display: grid;
  gap: 0.55rem;
}

.form-message {
  min-height: 1.2rem;
  color: var(--brand);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #f0ece2;
}

.footer-wrap {
  min-height: 84px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

/* Motion */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (min-width: 700px) {
  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .showroom-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-band {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 960px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    border: 0;
    background: transparent;
  }

  .site-nav a {
    border: 0;
    border-radius: 999px;
    padding: 0.45rem 0.75rem;
  }

  .site-nav a:hover {
    background: #ece6d8;
  }

  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .catalog-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .product-detail {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

/* Language-Exclusive Visibility Rules */
/* Shows only selected language content + bilingual button labels */
/* .zh is used for Traditional Chinese (backward compat), .lang-tw for explicit Traditional */

/* English mode: hide all Chinese variants */
html[data-lang="en"] .zh,
html[data-lang="en"] .lang-tw,
html[data-lang="en"] .lang-cn {
  display: none;
}

/* Simplified Chinese mode: hide English and Traditional Chinese */
html[data-lang="zh-cn"] .lang-en,
html[data-lang="zh-cn"] .zh,
html[data-lang="zh-cn"] .lang-tw {
  display: none;
}

/* Traditional Chinese mode: hide English and Simplified Chinese */
html[data-lang="zh-tw"] .lang-en,
html[data-lang="zh-tw"] .lang-cn {
  display: none;
}

/* Carousel Styles */
.carousel-container {
  position: relative;
  width: 100%;
  min-height: 320px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.carousel-slides {
  position: relative;
  width: 100%;
  height: 100%;
  flex: 1;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100% !important;
  height: 100% !important;
  display: block;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
  margin: 0;
  padding: 0;
  border: none;
  max-width: none;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  font-size: 1.5rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-radius: 4px;
  z-index: 10;
  transition: background 0.3s;
}

.carousel-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}

.carousel-prev {
  left: 1rem;
}

.carousel-next {
  right: 1rem;
}

.carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 10;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  border: none;
  cursor: pointer;
  transition: background 0.3s;
}

.dot.active {
  background: rgba(255, 255, 255, 1);
}

.dot:hover {
  background: rgba(255, 255, 255, 0.8);
}