@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;700&family=Cormorant+Garamond:ital,wght@0,300;0,400;1,300;1,400&family=Zen+Old+Mincho:wght@400;700&display=swap');

:root {
  --ink: #1a1208;
  --paper: #f5f0e8;
  --gold: #c8963e;
  --gold-light: #e8c87a;
  --red: #8b2020;
  --jade: #2d6a4f;
  --jade-light: #52b788;
  --mist: rgba(245,240,232,0.92);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Cormorant Garamond', serif;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* Noise texture */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.5;
}

/* ─── HEADER ─── */
header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 1.4rem 3rem;
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(to bottom, rgba(245,240,232,0.97) 70%, transparent);
  backdrop-filter: blur(4px);
}

.logo {
  font-family: 'Zen Old Mincho', serif;
  font-size: 1.8rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-decoration: none;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 3rem;
}

nav { display: flex; gap: 2rem; align-items: center; }

nav a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  opacity: 0.6;
  transition: opacity 0.3s, color 0.3s;
  position: relative;
}
nav a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
nav a:hover, nav a.active { opacity: 1; color: var(--gold); }
nav a:hover::after, nav a.active::after { transform: scaleX(1); transform-origin: left; }

/* Lang switcher */
.lang-switch {
  display: flex;
  gap: 0.4rem;
  border: 1px solid rgba(200,150,62,0.3);
  padding: 0.25rem 0.5rem;
}
.lang-switch button {
  background: none;
  border: none;
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  cursor: pointer;
  color: var(--ink);
  opacity: 0.4;
  transition: opacity 0.2s, color 0.2s;
  padding: 0 0.3rem;
}
.lang-switch button.active { opacity: 1; color: var(--gold); }
.lang-switch .sep { color: var(--gold); opacity: 0.4; font-size: 0.7rem; line-height: 1.8; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-block;
  padding: 0.9rem 2.2rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  transition: all 0.35s;
  position: relative;
  overflow: hidden;
  background: transparent;
  cursor: pointer;
}
.btn::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--gold);
  transform: translateX(-101%);
  transition: transform 0.35s cubic-bezier(.23,1,.32,1);
}
.btn:hover::before { transform: translateX(0); }
.btn span { position: relative; z-index: 1; transition: color 0.35s; }
.btn:hover span { color: var(--paper); }

.btn-dark {
  border-color: var(--paper);
  color: var(--paper);
}
.btn-dark::before { background: var(--paper); }
.btn-dark:hover span { color: var(--ink); }

/* ─── SECTION COMMONS ─── */
.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.section-title {
  font-family: 'Zen Old Mincho', serif;
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  line-height: 1.1;
  margin-bottom: 1.2rem;
}

.section-intro {
  font-size: 1rem;
  line-height: 1.95;
  opacity: 0.65;
  max-width: 580px;
  font-style: italic;
}

/* ─── FOOTER ─── */
footer {
  padding: 3.5rem 4rem;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  border-top: 1px solid rgba(200,150,62,0.15);
}
.footer-logo {
  font-family: 'Zen Old Mincho', serif;
  font-size: 2rem;
  color: var(--gold);
}
.footer-center { text-align: center; }
.footer-tagline {
  font-style: italic;
  font-size: 0.9rem;
  opacity: 0.4;
  display: block;
  margin-bottom: 0.5rem;
}
.footer-copy { font-size: 0.7rem; opacity: 0.25; letter-spacing: 0.1em; }
.footer-links {
  display: flex; gap: 1.8rem; justify-content: flex-end; flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper);
  opacity: 0.35;
  text-decoration: none;
  transition: opacity 0.25s;
}
.footer-links a:hover { opacity: 0.85; }

/* ─── REVEAL ANIMATION ─── */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.85s ease, transform 0.85s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ─── PAGE HERO BANNER (inner pages) ─── */
.page-banner {
  height: 42vh;
  min-height: 280px;
  background: var(--ink);
  display: flex;
  align-items: flex-end;
  padding: 4rem 6rem;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: attr(data-cn);
  position: absolute;
  font-family: 'Zen Old Mincho', serif;
  font-size: 18rem;
  opacity: 0.04;
  right: 3rem; bottom: -3rem;
  color: var(--gold);
  pointer-events: none;
  line-height: 1;
}
.page-banner-content { position: relative; z-index: 2; color: var(--paper); }
.page-banner h1 { font-family: 'Zen Old Mincho', serif; font-size: clamp(2.5rem,5vw,4.5rem); line-height:1; margin-bottom:0.5rem; }
.page-banner p { font-size:1rem; opacity:0.5; font-style:italic; letter-spacing:0.05em; }

/* ─── MOBILE ─── */
@media (max-width: 768px) {
  header { padding: 1rem 1.5rem; }
  .header-right { gap: 1.2rem; }
  nav a:not(.nav-contact) { display: none; }
  .page-banner { padding: 4rem 2rem 2.5rem; min-height: 200px; }
  footer { grid-template-columns: 1fr; text-align: center; padding: 3rem 2rem; }
  .footer-links { justify-content: center; }
}