/* ============================================
   SITE NAV
   ============================================ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-cream) 88%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
}

.site-nav.is-scrolled {
  border-bottom-color: var(--color-line);
  background: color-mix(in oklab, var(--color-cream) 96%, transparent);
}

.site-nav__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-7);
  padding-block: var(--space-5);
}

.site-nav__brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-family: var(--font-display);
}

.site-nav__brand-mark {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--color-ink);
}

.site-nav__brand-mark .serif-italic {
  font-style: italic;
  font-weight: 300;
  color: var(--color-moss);
}

.site-nav__brand-name {
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-ink-soft);
  font-style: italic;
}

.site-nav__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-7);
}

.site-nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-soft);
  position: relative;
  padding-block: var(--space-2);
}

.site-nav__links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-ink);
  transition: width var(--duration-base) var(--ease-out);
}

.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] {
  color: var(--color-ink);
}

.site-nav__links a:hover::after,
.site-nav__links a[aria-current="page"]::after {
  width: 100%;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-ink);
  color: var(--color-cream);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--duration-base) var(--ease-out);
}

.site-nav__cta:hover {
  background: var(--color-moss-deep);
  transform: translateY(-1px);
}

.site-nav__cta svg {
  transition: transform var(--duration-base) var(--ease-out);
}

.site-nav__cta:hover svg {
  transform: translateX(2px);
}

.site-nav__toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 0;
}

.site-nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-ink);
  transition: all var(--duration-base) var(--ease-out);
}

.site-nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
.site-nav__toggle[aria-expanded="true"] span:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

@media (max-width: 880px) {
  .site-nav__inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav__brand-name {
    display: none;
  }

  .site-nav__links {
    position: fixed;
    inset: 76px 0 0 0;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: var(--space-7) var(--gutter);
    gap: var(--space-5);
    background: var(--color-cream);
    transform: translateX(100%);
    transition: transform var(--duration-base) var(--ease-out);
  }

  .site-nav__links.is-open {
    transform: translateX(0);
  }

  .site-nav__links a {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 300;
  }

  .site-nav__cta {
    display: none;
  }

  .site-nav__toggle {
    display: flex;
  }
}