/* ============================================================
   Top navigation — transparent over hero, solidifies on scroll
   ============================================================ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1rem, 2vw, 1.6rem) var(--gutter);
  color: var(--cream);
  transition: background .5s var(--ease), color .5s var(--ease), padding .4s var(--ease), border-color .5s;
  border-bottom: 1px solid transparent;
}
.nav.is-solid {
  background: rgba(13,12,10,0.72);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-bottom-color: var(--line-dark);
  padding-block: 0.9rem;
}
/* When over light sections */
.nav.is-light { color: var(--ink); }
.nav.is-light.is-solid {
  background: rgba(246,241,231,0.8);
  border-bottom-color: var(--line-light);
}

.nav__logo { display: flex; align-items: center; gap: .7rem; flex: 0 0 auto; }
.nav__logo img { height: 26px; width: auto; transition: filter .5s; }
.nav.is-light .nav__logo img { filter: invert(1); }

.nav__links {
  display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem);
  font-family: var(--mono); text-transform: uppercase;
  font-size: 0.72rem; letter-spacing: 0.16em;
}
.nav__links a { position: relative; padding: .4em 0; opacity: .82; transition: opacity .3s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--accent); transition: width .35s var(--ease);
}
.nav__links a:hover { opacity: 1; }
.nav__links a:hover::after { width: 100%; }
.nav__links a.is-active { opacity: 1; color: var(--accent); }
.nav__links a.is-active::after { width: 100%; }

.nav__right { display: flex; align-items: center; gap: 1rem; flex: 0 0 auto; }
.nav__phone {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  display: inline-flex; align-items: center; gap: .5em; opacity: .85;
}
.nav__phone svg { width: 13px; height: 13px; }

.nav__cta {
  --bg: var(--accent); --fg: #fff;
  padding: .7em 1.2em; font-size: 0.7rem;
}

/* Burger */
.nav__burger { display: none; width: 30px; height: 18px; position: relative; }
.nav__burger span { position: absolute; left: 0; height: 2px; width: 100%; background: currentColor; transition: transform .4s var(--ease), opacity .3s; }
.nav__burger span:nth-child(1) { top: 0; }
.nav__burger span:nth-child(2) { top: 8px; }
.nav__burger span:nth-child(3) { top: 16px; }
body.menu-open .nav__burger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
body.menu-open .nav__burger span:nth-child(2) { opacity: 0; }
body.menu-open .nav__burger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile drawer */
.nav__drawer {
  position: fixed; inset: 0; z-index: 90;
  background: var(--ink); color: var(--cream);
  display: flex; flex-direction: column; justify-content: center; gap: 1.2rem;
  padding: var(--gutter);
  transform: translateY(-100%); transition: transform .6s var(--ease);
}
body.menu-open .nav__drawer { transform: translateY(0); }
.nav__drawer a { font-family: var(--serif); font-size: clamp(2rem, 9vw, 3rem); }
.nav__drawer a em { color: var(--accent-2); }
.nav__drawer .nav__drawer-foot { margin-top: 2rem; font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; opacity: .6; display: flex; flex-direction: column; gap: .4rem; }

@media (max-width: 960px) {
  .nav__links, .nav__phone { display: none; }
  .nav__burger { display: block; }
}
@media (max-width: 520px) {
  .nav__cta { display: none; }
}