/* Fixed site navigation. Transparent over the dark hero, frosted once scrolled. */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 var(--pad-x);
  transition: background-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}
.site-nav.scrolled {
  background-color: rgba(11, 29, 15, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--cream-12);
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 22px;
  letter-spacing: 0.01em;
  color: var(--warm-cream);
}
.logo-img {
  display: block;
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-size: var(--text-xs);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream-55);
  transition: color 0.2s var(--ease);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--warm-cream); }

.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-actions .btn { padding: 10px 22px; font-size: var(--text-xs); }

/* Dropdowns */
.nav-links .has-dropdown { position: relative; }
.drop-trigger { display: inline-flex; align-items: center; gap: 7px; }
.caret { transition: transform 0.2s var(--ease); }
.has-dropdown:hover > .drop-trigger .caret,
.has-dropdown:focus-within > .drop-trigger .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translate(-50%, 6px);
  min-width: 256px;
  background: rgba(11, 29, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--cream-12);
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 16px 48px rgba(4, 10, 5, 0.5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s;
}
/* Invisible bridge so the panel doesn't close crossing the gap */
.dropdown::before { content: ''; position: absolute; top: -16px; left: 0; right: 0; height: 16px; }
.has-dropdown:hover > .dropdown,
.has-dropdown:focus-within > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
.dropdown li { width: 100%; }
.dropdown a {
  display: block;
  padding: 11px 14px;
  border-radius: 8px;
  text-transform: none;
  letter-spacing: 0.01em;
  font-size: 13px;
  color: var(--warm-cream);
  transition: background-color 0.15s var(--ease);
}
.dropdown a:hover { background: rgba(150, 201, 106, 0.10); color: var(--warm-cream); }
.dropdown a[aria-current="page"] { background: rgba(150, 201, 106, 0.14); }
.dropdown small {
  display: block;
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--cream-55);
  margin-top: 3px;
}

/* Mobile */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-burger span {
  width: 20px;
  height: 1.5px;
  background: var(--warm-cream);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

@media (max-width: 860px) {
  .nav-burger { display: flex; }
  .logo-img { height: 26px; }
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--deep-forest);
    border-bottom: 1px solid var(--cream-12);
    padding: 8px var(--pad-x) 24px;
    display: none;
  }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 14px 0;
    font-size: var(--text-sm);
    border-bottom: 1px solid var(--cream-12);
  }
  .site-nav.open {
    background-color: var(--deep-forest);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .site-nav.open .nav-links { display: flex; }
  .drop-trigger { display: flex; align-items: center; }
  .dropdown {
    position: static;
    transform: none;
    min-width: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0 0 6px 14px;
    display: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: none;
  }
  .dropdown::before { display: none; }
  .has-dropdown.sub-open > .dropdown { display: block; }
  .dropdown a { border-bottom: none; padding: 10px 0; }
  .site-nav.open .nav-burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .site-nav.open .nav-burger span:nth-child(2) { opacity: 0; }
  .site-nav.open .nav-burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}