:root {
  --paper: #f5f2ec;
  --paper-deep: #ebe6dc;
  --ink: #141311;
  --ink-soft: #4a4740;
  --rule: #d6cfc2;
  --gold: #8f7444;
  --sand: #d9cbb2;
  --stone: #bcb4a5;
  --ochre: #b98d55;
  --charcoal: #2b2925;

  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-text: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --gutter: 16px;
  --max: 1280px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

html[lang="en"] .vi,
html[lang="vi"] .en { display: none; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-underline-offset: 4px; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  background: var(--ink);
  color: var(--paper);
  padding: 8px 12px;
  z-index: 100;
}
.skip-link:focus { top: 12px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 242, 236, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.32em;
  text-decoration: none;
  font-weight: 500;
}
.wordmark--small { font-size: 18px; margin: 0 0 16px; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 28px; }
.site-nav a {
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 0;
  background: linear-gradient(currentColor, currentColor) left bottom / 0 1px no-repeat;
  transition: background-size 0.35s var(--ease);
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { background-size: 100% 1px; }

.lang-toggle {
  background: none;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  color: var(--ink);
}
.lang-toggle:hover { background: var(--ink); color: var(--paper); }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink);
  padding: 8px 14px;
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

/* Hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px var(--gutter) 88px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  min-height: 78vh;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 6vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 12px 0 24px;
}
.hero__title .vi { font-size: 0.82em; }
.hero__lede { font-size: 18px; color: var(--ink-soft); max-width: 36ch; margin: 0 0 32px; }
.hero__actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero__visual {
  aspect-ratio: 4 / 5;
  background: linear-gradient(160deg, var(--sand), var(--stone) 60%, var(--charcoal));
  position: relative;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
}

/* Buttons and links */
.button {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  padding: 16px 28px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 0;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.3s var(--ease);
}
.button:hover { background: var(--gold); }

.link-arrow {
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

/* Sections */
.section { max-width: var(--max); margin: 0 auto; padding: 72px var(--gutter); }
.section--split { border-top: 1px solid var(--rule); }
.section__label {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 32px;
}

.grid { display: grid; gap: 40px 28px; }
.grid--three { grid-template-columns: repeat(3, 1fr); }

.piece__media {
  display: block;
  aspect-ratio: 3 / 4;
  position: relative;
  text-decoration: none;
  transition: transform 0.6s var(--ease);
}
.piece__media:hover { transform: translateY(-4px); }
.piece__media--sand { background: linear-gradient(160deg, var(--sand), #c4b393); }
.piece__media--stone { background: linear-gradient(160deg, #d3cdc2, var(--stone)); }
.piece__media--ochre { background: linear-gradient(160deg, #cfa77a, var(--ochre)); }
.piece__media--ink { background: linear-gradient(160deg, var(--charcoal), var(--ink)); }

.piece__category {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 18px 0 4px;
}
.piece__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 24px;
  margin: 0;
  line-height: 1.2;
}
.piece__price { margin: 6px 0 0; color: var(--ink-soft); font-size: 14px; }

.placeholder-note {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(20, 19, 17, 0.55);
  background: rgba(245, 242, 236, 0.6);
  padding: 4px 8px;
}

.statement {
  background: var(--ink);
  color: var(--paper);
  padding: 96px var(--gutter);
  text-align: center;
}
.statement p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(28px, 4vw, 48px);
  margin: 0 auto;
  max-width: 24ch;
  line-height: 1.2;
}

/* Inner pages */
.page-intro {
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px var(--gutter) 40px;
}
.page-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(44px, 6vw, 80px);
  line-height: 1.05;
  margin: 12px 0 0;
}

.prose { max-width: 62ch; }
.prose p { font-size: 18px; color: var(--ink-soft); margin: 0 0 24px; }
.section--prose { padding-top: 24px; }

.section--values { border-top: 1px solid var(--rule); }
.value h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 28px;
  margin: 0 0 12px;
}
.value p { margin: 0; color: var(--ink-soft); }

.section--contact {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}
.form { display: grid; gap: 24px; max-width: 520px; }
.field { display: grid; gap: 8px; }
.field label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.field input,
.field textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  background: #fbfaf7;
  color: var(--ink);
  border-radius: 0;
}
.field input:focus,
.field textarea:focus { outline: 2px solid var(--gold); outline-offset: 0; border-color: var(--gold); }

.notice {
  border: 1px solid var(--gold);
  padding: 16px 20px;
  max-width: 520px;
  margin-bottom: 32px;
}
.notice p { margin: 0; }
.notice--error { border-color: #9b3d2e; color: #7a2c20; }

.contact-details h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 26px;
  margin: 0 0 12px;
}
.contact-details p { margin: 0 0 8px; color: var(--ink-soft); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--paper-deep);
  margin-top: 40px;
}
.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px var(--gutter) 40px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0 0 32px; display: flex; flex-wrap: wrap; gap: 20px 28px; }
.site-footer a { text-decoration: none; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; }
.site-footer__legal { margin: 0; font-size: 13px; color: var(--ink-soft); }

/* Responsive */
@media (max-width: 960px) {
  .grid--three { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; min-height: 0; padding-top: 48px; }
  .hero__visual { aspect-ratio: 4 / 3; }
  .section--contact { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .menu-toggle { display: inline-block; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px var(--gutter) 32px;
    border-bottom: 1px solid var(--rule);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 18px; }
  .site-header { position: relative; }
  .grid--three { grid-template-columns: 1fr; }
  .section, .page-intro, .hero { padding-left: var(--gutter); padding-right: var(--gutter); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}