/* ═══════════════════════════════════════════
   SHARED STYLES — Jun Yuan Holdings
   ═══════════════════════════════════════════ */

:root {
  --red:       #C4192E;
  --red-deep:  #7A0E1C;
  --red-mid:   #9B1223;
  --white:     #FFFFFF;
  --off-white: #FAF7F6;
  --red-tint:  #FDF1F2;
  --text:      #1C0509;
  --gold:      #A8834A;
  --gold-lt:   #C9A96E;
}

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

body {
  background: var(--white);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9000;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 300px;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 64px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(196,25,46,0.08);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand img {
  height: 38px;
  width: auto;
  mix-blend-mode: multiply;
}

.nav-wordmark {
  font-family: 'Cormorant Garamond', serif;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text);
  line-height: 1.2;
}

.nav-wordmark small {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 9px;
  letter-spacing: 0.28em;
  font-weight: 300;
  color: var(--gold);
  text-transform: uppercase;
  margin-top: 2px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 44px;
  align-items: center;
}

.nav-links a {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  opacity: 0.5;
  transition: opacity 0.2s cubic-bezier(0.4,0,0.2,1), color 0.2s cubic-bezier(0.4,0,0.2,1);
}

.nav-links a:hover        { opacity: 1; color: var(--red); }
.nav-links a.active       { opacity: 1; color: var(--red); }
.nav-links a:focus-visible { outline: 2px solid var(--red); outline-offset: 4px; border-radius: 1px; opacity: 1; }
.nav-links a:active       { opacity: 0.7; }

/* Hamburger button */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.4,0,0.2,1), opacity 0.25s cubic-bezier(0.4,0,0.2,1);
}

.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 150;
  background: var(--red-deep);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.4,0,0.2,1);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 36px;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  padding: 16px 0;
  width: 100%;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s cubic-bezier(0.4,0,0.2,1);
}

.mobile-menu a:first-child { border-top: 1px solid rgba(255,255,255,0.06); }
.mobile-menu a:hover  { color: var(--white); }
.mobile-menu a.active { color: var(--white); }

/* ── PAGE HEADER (inner pages) ── */
.page-header {
  padding: 140px 64px 72px;
  background: var(--red-deep);
  position: relative;
  overflow: hidden;
}

.page-header-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 100% 50%, rgba(255,255,255,0.05) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 0% 80%, rgba(60,0,10,0.5) 0%, transparent 55%);
}

.page-header-inner {
  position: relative;
  z-index: 2;
  max-width: 1140px;
  margin: 0 auto;
}

.page-label {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  font-weight: 400;
  margin-bottom: 16px;
}

.page-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--white);
}

.page-title em { font-style: italic; color: rgba(255,255,255,0.4); }

/* ── COMMON SECTION ── */
.inner {
  max-width: 1140px;
  margin: 0 auto;
}

.label {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 400;
  margin-bottom: 16px;
}

.section-heading {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(30px, 3.8vw, 52px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 36px;
}

.section-heading em { font-style: italic; color: var(--red); }

.body-p {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(28,5,9,0.5);
  margin-bottom: 24px;
}

/* ── FOOTER ── */
footer {
  background: var(--red-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 28px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.04em;
}

.footer-chinese {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.18);
}

/* ── LANGUAGE TOGGLE ── */
.lang-toggle {
  background: none;
  border: 1px solid rgba(196,25,46,0.18);
  border-radius: 2px;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(28,5,9,0.35);
  padding: 5px 10px;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  transition: border-color 0.2s cubic-bezier(0.4,0,0.2,1), color 0.2s cubic-bezier(0.4,0,0.2,1);
}
.lang-toggle:hover { border-color: var(--red); color: var(--red); }
.lang-toggle .lang-sep { opacity: 0.3; }
.lang-toggle[data-lang="en"] .lang-en { color: var(--red); }
.lang-toggle[data-lang="zh"] .lang-zh { color: var(--red); }

.mobile-lang {
  margin-top: 16px;
  display: flex;
  justify-content: center;
}
.mobile-lang .lang-toggle {
  border-color: rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.35);
  font-size: 11px;
  padding: 8px 20px;
}
.mobile-lang .lang-toggle:hover { border-color: rgba(255,255,255,0.5); color: rgba(255,255,255,0.7); }
.mobile-lang .lang-toggle[data-lang="en"] .lang-en { color: rgba(255,255,255,0.9); }
.mobile-lang .lang-toggle[data-lang="zh"] .lang-zh { color: rgba(255,255,255,0.9); }

/* ══════════════════════════════
   MOBILE  (≤ 768px)
══════════════════════════════ */
@media (max-width: 768px) {
  nav {
    padding: 14px 24px;
  }

  .nav-links { display: none; }
  .nav-lang { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }

  .page-header {
    padding: 110px 24px 52px;
  }

  footer {
    flex-direction: column;
    gap: 10px;
    padding: 22px 24px;
    text-align: center;
  }
}