/* ============================================================
   Layout — menu trigger, side menu, scrim/blur, footer
   ============================================================ */

/* ---- Site shell (blurs when menu opens) ---- */
.site-shell {
  transition: filter var(--dur) var(--ease), transform var(--dur) var(--ease);
  will-change: filter, transform;
}
body.menu-open .site-shell {
  filter: blur(9px) brightness(0.92);
  transform: scale(1.02);
  pointer-events: none;
  user-select: none;
}
body.menu-open { overflow: hidden; }

/* ---- Menu trigger (far left, hamburger + 'Menu' below) ---- */
.menu-trigger {
  position: fixed;
  top: clamp(1rem, 2.4vw, 1.9rem);
  left: clamp(1rem, 2.4vw, 2rem);
  z-index: 120;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.35rem;
  color: var(--on-dark);
  transition: color var(--dur) var(--ease), transform 0.3s var(--ease);
}
.menu-trigger:hover { transform: translateY(-1px); }

/* Interior pages use a light header, so the trigger is dark ink there */
body:not([data-page="home"]) .menu-trigger { color: var(--ink); }

.menu-trigger__bars {
  position: relative;
  width: 30px; height: 16px;
  display: block;
}
.menu-trigger__bars span {
  position: absolute; left: 0;
  width: 100%; height: 2px; border-radius: 2px;
  background: currentColor;
  transition: transform 0.4s var(--ease), opacity 0.25s var(--ease), width 0.4s var(--ease);
}
.menu-trigger__bars span:nth-child(1) { top: 0; }
.menu-trigger__bars span:nth-child(2) { top: 7px; width: 70%; }
.menu-trigger__bars span:nth-child(3) { top: 14px; }

.menu-trigger__label {
  font-family: var(--font-sans);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

/* trigger morphs to an X while open, and pins above the sharp menu */
body.menu-open .menu-trigger { color: var(--ink); z-index: 320; }
body.menu-open .menu-trigger__bars span:nth-child(1) { top: 7px; transform: rotate(45deg); }
body.menu-open .menu-trigger__bars span:nth-child(2) { opacity: 0; width: 0; }
body.menu-open .menu-trigger__bars span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* ---- Scrim ---- */
.scrim {
  position: fixed; inset: 0;
  z-index: 200;
  background: rgba(20, 18, 14, 0.32);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.scrim[hidden] { display: none; }
body.menu-open .scrim { opacity: 1; }

/* ---- Side menu ---- */
.side-menu {
  position: fixed;
  top: 0; left: 0;
  z-index: 300;
  width: min(420px, 88vw);
  height: 100%;
  background: var(--cream);
  box-shadow: var(--shadow-lg);
  transform: translateX(-100%);
  transition: transform var(--dur) var(--ease);
  will-change: transform;
}
body.menu-open .side-menu { transform: translateX(0); }

.side-menu__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  padding-top: clamp(5rem, 8vw, 6.5rem);
}

.side-menu__brand {
  align-self: flex-end;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--ink);
  letter-spacing: 0.01em;
  margin-bottom: 2rem;
  transition: color 0.4s var(--ease);
}
.side-menu__brand:hover { color: var(--wheat-deep); }

.side-menu__eyebrow {
  font-size: 0.68rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--faint); font-weight: 600; margin-bottom: 1.1rem;
}

.side-menu__nav { flex: 1; }
.side-menu__nav ul { display: flex; flex-direction: column; }
.side-menu__nav li {
  opacity: 0; transform: translateX(-14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  transition-delay: calc(var(--i) * 45ms);
  border-bottom: 1px solid var(--line-soft);
}
body.menu-open .side-menu__nav li { opacity: 1; transform: translateX(0); }

.side-menu__link {
  display: flex; align-items: baseline; gap: 1rem;
  padding: 0.85rem 0.25rem;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  color: var(--ink-soft);
  transition: color 0.3s var(--ease), padding 0.3s var(--ease);
}
.side-menu__link-index {
  font-family: var(--font-sans); font-size: 0.68rem; font-weight: 600;
  color: var(--faint); letter-spacing: 0.1em; min-width: 1.6rem;
}
.side-menu__link-text { flex: 1; }
.side-menu__link-arrow {
  font-size: 1.1rem; color: var(--wheat);
  opacity: 0; transform: translateX(-8px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.side-menu__link:hover { color: var(--ink); padding-left: 0.9rem; }
.side-menu__link:hover .side-menu__link-arrow { opacity: 1; transform: translateX(0); }
.side-menu__link.is-active { color: var(--wheat-deep); }

.side-menu__foot { margin-top: 1.5rem; }

/* Language toggle */
.lang-toggle {
  display: inline-flex; padding: 4px;
  background: var(--cream-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  margin-bottom: 1.2rem;
}
.lang-toggle__btn {
  padding: 0.4rem 1.05rem;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--muted);
  border-radius: 999px;
  transition: color 0.3s var(--ease), background 0.3s var(--ease);
}
.lang-toggle__btn.is-active {
  color: var(--paper);
  background: var(--ink);
}

.side-menu__meta {
  display: flex; flex-direction: column; gap: 0.25rem;
  font-size: 0.82rem; color: var(--muted);
}
.side-menu__meta a { color: var(--wheat-deep); }

/* ---- Page-transition curtain ---- */
.page-curtain {
  position: fixed; inset: 0; z-index: 900;
  background: var(--ink);
  transform: translateY(-100%);
  pointer-events: none;
}
/* With JS, the curtain starts covering and lifts away to reveal the page */
.js .page-curtain { transform: translateY(0); animation: curtain-reveal 0.9s var(--ease) forwards; }
.js .page-curtain.is-leaving { animation: curtain-cover 0.55s var(--ease) forwards; }

/* ---- Footer ---- */
.footer { background: var(--ink); color: var(--on-dark); padding-top: clamp(3.5rem, 7vw, 6rem); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: 3rem;
}
.footer__brand-name { font-family: var(--font-serif); font-size: 1.5rem; display: block; margin-bottom: 0.9rem; }
.footer__brand p { color: var(--on-dark-mut); max-width: 32ch; }
.footer__col h4 {
  font-family: var(--font-sans); font-size: 0.74rem; text-transform: uppercase;
  letter-spacing: 0.18em; color: var(--wheat); margin-bottom: 1.1rem; font-weight: 600;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer__col a { color: var(--on-dark-mut); transition: color 0.25s var(--ease); }
.footer__col a:hover { color: var(--on-dark); }
.footer__certs li { color: var(--on-dark-mut); display: flex; gap: 0.5rem; }
.footer__certs span { color: var(--wheat); }
.footer__bar { border-top: 1px solid rgba(246, 242, 233, 0.12); }
.footer__bar-inner {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-block: 1.4rem; font-size: 0.8rem; color: var(--on-dark-mut);
}

@media (max-width: 860px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: 1fr; }
}