/* =========================================================
   Navigation
   ========================================================= */

.site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-sticky);
  padding-block: var(--space-4);
  transition: background-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              padding var(--duration-base) var(--ease-out);
}

.site-nav.is-scrolled {
  background: rgba(247, 245, 242, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 var(--color-border);
  padding-block: var(--space-3);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-nav__brand img {
  height: 96px;
  width: auto;
  transition: height var(--duration-base) var(--ease-out);
}
.site-nav.is-scrolled .site-nav__brand img { height: 64px; }

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-nav__link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-navy);
  padding-block: 0.5rem;
  transition: color var(--duration-base) var(--ease-out);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 20px; height: 2px;
  background: var(--color-coral);
  border-radius: 2px;
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform var(--duration-base) var(--ease-out);
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-coral);
}
.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: translateX(-50%) scaleX(1);
}

.site-nav__cta {
  flex-shrink: 0;
}

/* Mobile menu toggle */
.site-nav__toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: white;
  box-shadow: var(--shadow-sm);
}
.site-nav__toggle-bar,
.site-nav__toggle-bar::before,
.site-nav__toggle-bar::after {
  content: "";
  display: block;
  width: 18px; height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  position: relative;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}
.site-nav__toggle-bar::before { position: absolute; top: -6px; left: 0; }
.site-nav__toggle-bar::after  { position: absolute; top:  6px; left: 0; }

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar { background: transparent; }
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar::after  { transform: translateY(-6px) rotate(-45deg); }

/* -----------------------------------------------------
   Mobile breakpoint
   ----------------------------------------------------- */
@media (max-width: 960px) {
  .site-nav__toggle { display: inline-flex; }

  .site-nav__links {
    position: fixed;
    inset: 88px var(--container-px) auto var(--container-px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-xl);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out);
  }

  .site-nav__links.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav__link {
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    text-align: left;
  }
  .site-nav__link:last-child { border-bottom: none; }
  .site-nav__link::after { display: none; }

  .site-nav__cta {
    /* keep desktop button visible on mobile too if there's room */
    display: none;
  }
  .site-nav__cta--mobile {
    display: inline-flex;
    margin-top: var(--space-3);
  }
}

@media (min-width: 961px) {
  .site-nav__cta--mobile { display: none; }
}