/* Shared navigation — appears on every page, color-themed per body class */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  padding: 0 var(--grid-gutter-tight);
  background: var(--nav-surface);
  color: var(--nav-ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  transition:
    background-color 0.6s var(--ease-soft),
    color 0.6s var(--ease-soft),
    height 0.4s var(--ease-soft),
    box-shadow 0.4s var(--ease-soft);
}

.nav[data-scrolled="true"] {
  height: clamp(56px, 8vw, 96px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-md) var(--space-md) 110px;
  flex-shrink: 0;
}

/* Logo removed per Grace's request 2026-04-23 — kept styles for easy re-enable later.
   To bring it back: delete the `display: none` line below. */
.nav__logo {
  display: none;
  width: clamp(48px, 7vw, 100px);
  height: clamp(48px, 7vw, 100px);
  /* SVG uses var(--fill-0) — set it to nav-ink so logo matches nav text */
  --fill-0: var(--nav-ink);
  transition: --fill-0 0.6s var(--ease-soft);
}

/* PNG logo — renders the doubled-monogram PNG as-is (white + black layers baked in).
   On dark navs the white layer shows, on light navs the black layer shows on top of
   the white shadow — both cases match Figma. */
.nav__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav__logo svg {
  width: 100%;
  height: 100%;
  fill: var(--nav-ink);
}

.nav__logo svg path { fill: var(--nav-ink); }

.nav__wordmark {
  font-family: var(--font-sans);
  font-weight: var(--fw-black);
  font-size: clamp(14px, 1.4vw, 20px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--nav-ink);
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(24px, 6vw, 91px);
  padding-right: 110px;
}

.nav__link {
  font-family: var(--font-sans);
  font-weight: var(--fw-bold);
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  color: var(--nav-ink);
  text-transform: uppercase;
  position: relative;
  padding: var(--space-sm) 0;
  transition: color 0.3s var(--ease-out);
  white-space: nowrap;
}

/* Animated underline on hover */
.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.4s var(--ease-out);
}

.nav__link:hover::after,
.nav__link:focus-visible::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

/* Active state — keep nav-ink color for contrast on all themes;
   distinguish via a full-width underline (::after handled above). */
.nav__link.is-active {
  color: var(--nav-ink);
}

.nav__link.is-active::after {
  background: var(--nav-ink);
  opacity: 0.85;
}

/* ---------- Mobile nav ---------- */
.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 110;
}

.nav__toggle-bar {
  display: block;
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--nav-ink);
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out), top 0.3s var(--ease-out);
}

.nav__toggle-bar:nth-child(1) { top: 14px; }
.nav__toggle-bar:nth-child(2) { top: 20px; }
.nav__toggle-bar:nth-child(3) { top: 26px; }

.nav[data-open="true"] .nav__toggle-bar:nth-child(1) {
  top: 20px;
  transform: rotate(45deg);
}
.nav[data-open="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav[data-open="true"] .nav__toggle-bar:nth-child(3) {
  top: 20px;
  transform: rotate(-45deg);
}

@media (max-width: 900px) {
  .nav {
    padding: 0 var(--space-md);
  }

  .nav__brand {
    padding-left: 0;
    gap: var(--space-xs);
  }

  .nav__toggle { display: block; }

  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(80vw, 360px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-3xl) var(--space-lg) var(--space-lg);
    background: var(--nav-surface);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.2);
  }

  .nav[data-open="true"] .nav__links {
    transform: translateX(0);
  }

  .nav__link {
    font-size: clamp(28px, 6vw, 40px);
    padding: var(--space-xs) 0;
  }

  .nav__link::after { bottom: 0; }
}