/* ──────────────────────────────────────────────────────────────
   Shared site navigation — used by every English page.
   Markup: <nav class="site-nav" id="siteNav" data-theme="dark|light"> + #siteDrawer
   Script: /js/site-nav.js (scroll state, mobile drawer, current-page link,
           cookie-bar offset).

   Behaviour (same as the original homepage nav):
   - Transparent at the top of the page, cream bar after scrolling 40px.
   - data-theme="dark"  → light text at the top (page starts on a dark/video hero)
     data-theme="light" → dark text at the top (page starts on cream)
   - Under 900px: links collapse into a hamburger + full-screen drawer.
   ────────────────────────────────────────────────────────────── */

:root {
  /* Height of the nav at the top of the page. Pages whose first section
     isn't full-bleed use this to keep content clear of the fixed bar. */
  --site-nav-h: 74px;
}
@media (max-width: 899px) {
  :root { --site-nav-h: 85px; }
}

.site-nav {
  --nav-fg: var(--forest);
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem 0;
  line-height: normal; /* same height on every page, whatever the body line-height */
  border-bottom: 1px solid transparent;
  transition: background-color 0.4s ease, padding 0.4s ease, border-color 0.4s ease;
}
.site-nav[data-theme="dark"]:not(.scrolled) { --nav-fg: var(--cream); }
.site-nav.scrolled {
  background: var(--cream);
  border-bottom-color: rgba(31, 51, 41, 0.08);
  padding: 0.75rem 0;
}
/* The mobile drawer is dark — keep the logo and close button light over it. */
body.nav-open .site-nav:not(.scrolled) { --nav-fg: var(--cream); }

.site-nav__inner {
  max-width: 1440px; margin: 0 auto; padding: 0 1.5rem;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1.5rem;
}
@media (min-width: 1024px) { .site-nav__inner { padding: 0 3rem; } }
@media (max-width: 899px) { .site-nav__inner { grid-template-columns: auto 1fr auto; } }

.site-nav .brand-mark {
  justify-self: start;
  color: var(--nav-fg);
  transition: color 0.4s ease;
}

.site-nav__links {
  display: none;
  justify-self: center;
  gap: 2.25rem;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.88rem; font-weight: 500;
  color: var(--nav-fg);
  transition: color 0.4s ease;
}
@media (min-width: 900px) { .site-nav__links { display: flex; } }
.site-nav__links a { position: relative; color: inherit; text-decoration: none; }
.site-nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px;
  width: 100%; height: 2px; background: var(--yuba-gold);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}
.site-nav__links a:hover::after,
.site-nav__links a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }

.site-nav__right {
  grid-column: 3;
  justify-self: end;
  display: flex; align-items: center; gap: 0.75rem;
}

.site-nav__cta {
  display: none;
  align-items: center; gap: 0.35rem;
  color: var(--forest);
  background: var(--yuba-gold);
  border: 1px solid var(--yuba-gold);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em;
  text-decoration: none; white-space: nowrap;
  box-shadow: 0 4px 14px -6px rgba(0, 0, 0, 0.35);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
@media (min-width: 900px) { .site-nav__cta { display: inline-flex; } }
.site-nav.scrolled .site-nav__cta { box-shadow: 0 2px 8px -4px rgba(0, 0, 0, 0.2); }
.site-nav__cta:hover {
  background: var(--yuba-light);
  border-color: var(--yuba-light);
  color: var(--forest);
  transform: translateY(-1px);
}

/* ── Hamburger ── */
.site-nav__toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: transparent; border: none; cursor: pointer;
  padding: 0; margin-right: -0.5rem;
  color: var(--nav-fg);
  transition: color 0.4s ease;
  -webkit-tap-highlight-color: transparent;
}
@media (min-width: 900px) { .site-nav__toggle { display: none; } }
.site-nav__toggle .bars { position: relative; width: 22px; height: 14px; }
.site-nav__toggle .bars span {
  position: absolute; left: 0; right: 0;
  height: 1.5px; background: currentColor;
  transition: transform 0.35s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.2s;
}
.site-nav__toggle .bars span:nth-child(1) { top: 0; }
.site-nav__toggle .bars span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.site-nav__toggle .bars span:nth-child(3) { bottom: 0; }
body.nav-open .site-nav__toggle .bars span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
body.nav-open .site-nav__toggle .bars span:nth-child(2) { opacity: 0; }
body.nav-open .site-nav__toggle .bars span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* ── Mobile drawer ── */
.site-drawer {
  position: fixed; inset: 0; z-index: 99;
  background: var(--forest-dark, #122b1f);
  display: flex; flex-direction: column;
  justify-content: flex-start; align-items: flex-start;
  padding: 5.5rem 2rem 2.5rem;
  gap: 0.15rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateY(-100%);
  transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1);
  pointer-events: none;
}
@media (min-width: 900px) { .site-drawer { display: none; } }
body.nav-open .site-drawer { transform: translateY(0); pointer-events: all; }
body.nav-open { overflow: hidden; }
.site-drawer a {
  color: var(--cream);
  text-decoration: none;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: clamp(1.75rem, 6.4vw, 2.55rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  padding: 0.6rem 0;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.site-drawer a[aria-current="page"] { color: var(--yuba-light); }
body.nav-open .site-drawer a { opacity: 1; transform: translateY(0); }
body.nav-open .site-drawer a:nth-child(1) { transition-delay: 0.15s; }
body.nav-open .site-drawer a:nth-child(2) { transition-delay: 0.22s; }
body.nav-open .site-drawer a:nth-child(3) { transition-delay: 0.29s; }
body.nav-open .site-drawer a:nth-child(4) { transition-delay: 0.36s; }
body.nav-open .site-drawer a:nth-child(5) { transition-delay: 0.43s; }
body.nav-open .site-drawer a:nth-child(6) { transition-delay: 0.5s; }
.site-drawer .site-drawer__cta {
  margin-top: 1.25rem;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--yuba-gold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ── Language menu (wholesale pages only) ── */
.site-nav .lang-menu {
  position: relative;
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, sans-serif;
  white-space: nowrap;
}
.site-nav .lang-menu > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.4rem 0.7rem 0.4rem 0.6rem;
  font-size: 0.8rem; font-weight: 500;
  color: var(--nav-fg);
  border: 1px solid rgba(26, 38, 32, 0.16);
  border-radius: 999px;
  background: rgba(253, 250, 241, 0.6);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.site-nav .lang-menu > summary::-webkit-details-marker { display: none; }
.site-nav .lang-menu > summary:hover {
  color: var(--yuba-deep);
  border-color: rgba(200, 146, 60, 0.6);
  background: var(--cream-soft);
}
.site-nav .lang-menu > summary svg { display: block; opacity: 0.75; }
.site-nav .lang-menu > summary .lm-chev { transition: transform 0.25s ease; opacity: 0.55; }
.site-nav .lang-menu[open] > summary .lm-chev { transform: rotate(180deg); }
.site-nav .lang-menu ul {
  position: absolute; right: 0; top: calc(100% + 0.55rem);
  min-width: 10rem;
  margin: 0; padding: 0.4rem;
  list-style: none;
  background: var(--cream-soft);
  border: 1px solid rgba(26, 38, 32, 0.1);
  border-radius: 14px;
  box-shadow: 0 14px 36px rgba(18, 43, 31, 0.14);
  z-index: 110;
}
.site-nav .lang-menu ul a {
  display: flex; align-items: center; justify-content: space-between; gap: 1.25rem;
  padding: 0.55rem 0.8rem;
  border-radius: 9px;
  font-size: 0.85rem; font-weight: 500;
  color: var(--forest); text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}
.site-nav .lang-menu ul a:hover { background: rgba(200, 146, 60, 0.12); color: var(--yuba-deep); }
.site-nav .lang-menu ul a[aria-current] { color: var(--yuba-deep); font-weight: 600; }
.site-nav .lang-menu ul a[aria-current]::after {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--yuba-gold);
  flex: none;
}