/* ============================================================
   Rife Systems — shared site navigation
   Single source of truth. Injected on every page by site-nav.js.
   Brand tokens mirror the homepage: ink / bone / gold.
   ============================================================ */
:root {
  --rs-ink: #0a0e15;
  --rs-ink-soft: #111822;
  --rs-ink-raised: #1a2331;
  --rs-bone: #ece8dd;
  --rs-bone-dim: #a79f8f;
  --rs-gold: #d4a770;
  --rs-gold-dim: #8f6e44;
  --rs-hairline: rgba(212, 167, 112, 0.22);
  --rs-nav-h: 64px;
}

.rs-nav, .rs-nav * { box-sizing: border-box; }

.rs-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--rs-nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.2rem;
  background: rgba(10, 14, 21, 0.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rs-hairline);
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
}

/* brand */
.rs-nav .rs-brand {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.4rem; font-weight: 600; letter-spacing: 0.02em;
  color: var(--rs-bone); text-decoration: none; white-space: nowrap;
}
.rs-nav .rs-brand span { color: var(--rs-gold); }

/* the menu cluster */
.rs-nav .rs-menu {
  display: flex; align-items: center; gap: 0.4rem;
}

/* dropdown groups */
.rs-group { position: relative; }
.rs-group > .rs-trigger {
  background: none; border: none; cursor: pointer;
  font-family: inherit; font-size: 0.86rem; font-weight: 400;
  letter-spacing: 0.04em; color: var(--rs-bone-dim);
  padding: 0.5rem 0.9rem; display: inline-flex; align-items: center; gap: 0.35rem;
  transition: color 180ms;
}
.rs-group > .rs-trigger:hover,
.rs-group > .rs-trigger[aria-expanded="true"] { color: var(--rs-gold); }
.rs-group > .rs-trigger .rs-caret {
  font-size: 0.6rem; transition: transform 180ms; opacity: 0.8;
}
.rs-group > .rs-trigger[aria-expanded="true"] .rs-caret { transform: rotate(180deg); }

.rs-dropdown {
  position: absolute; top: calc(100% + 0.4rem); left: 0;
  min-width: 210px; padding: 0.5rem;
  background: rgba(17, 24, 34, 0.98);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--rs-hairline); border-radius: 4px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.5);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 160ms, transform 160ms, visibility 160ms;
}
.rs-group:hover .rs-dropdown,
.rs-group .rs-trigger[aria-expanded="true"] + .rs-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.rs-dropdown a {
  display: block; padding: 0.6rem 0.8rem; border-radius: 3px;
  font-size: 0.88rem; color: var(--rs-bone-dim); text-decoration: none;
  letter-spacing: 0.02em; transition: background 140ms, color 140ms;
}
.rs-dropdown a:hover { background: rgba(212,167,112,0.08); color: var(--rs-bone); }
.rs-dropdown a .rs-sub {
  display: block; font-size: 0.72rem; color: var(--rs-bone-dimmer, #6d6557);
  margin-top: 0.1rem; letter-spacing: 0;
}

/* action buttons + sign in */
.rs-actions { display: flex; align-items: center; gap: 0.7rem; margin-left: 0.6rem; }
.rs-btn {
  display: inline-block; padding: 0.5rem 1.1rem;
  font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none;
  border: 1px solid var(--rs-gold); color: var(--rs-gold);
  border-radius: 2px; transition: all 180ms; white-space: nowrap;
}
.rs-btn:hover { background: var(--rs-gold); color: var(--rs-ink); }
.rs-btn.rs-btn-primary { background: var(--rs-gold); color: var(--rs-ink); }
.rs-btn.rs-btn-primary:hover { background: transparent; color: var(--rs-gold); }
.rs-signin {
  font-size: 0.84rem; color: var(--rs-bone-dim); text-decoration: none;
  letter-spacing: 0.04em; padding: 0.4rem 0.3rem; white-space: nowrap;
  transition: color 160ms;
}
.rs-signin:hover { color: var(--rs-gold); }

/* active page marker */
.rs-nav a.rs-active, .rs-group.rs-active > .rs-trigger { color: var(--rs-gold); }

/* hamburger — hidden on desktop */
.rs-burger {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--rs-bone); font-size: 1.5rem; line-height: 1; padding: 0.3rem;
}

/* spacer so fixed nav never overlaps page content that lacks its own top padding */
.rs-nav-spacer { height: var(--rs-nav-h); }

/* ---------- mobile ---------- */
@media (max-width: 860px) {
  .rs-nav { padding: 0 1.1rem; }
  .rs-burger { display: block; }
  .rs-menu {
    position: fixed; top: var(--rs-nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    max-height: calc(100vh - var(--rs-nav-h)); overflow-y: auto;
    padding: 0.8rem 1.1rem 1.6rem;
    background: rgba(10, 14, 21, 0.98);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--rs-hairline);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity 200ms, transform 200ms, visibility 200ms;
  }
  .rs-nav.rs-open .rs-menu { transform: translateY(0); opacity: 1; visibility: visible; }
  .rs-group { width: 100%; }
  .rs-group > .rs-trigger { width: 100%; justify-content: space-between; padding: 0.85rem 0.4rem; font-size: 0.98rem; }
  .rs-dropdown {
    position: static; min-width: 0; opacity: 1; visibility: visible;
    transform: none; box-shadow: none; border: none; background: none;
    padding: 0 0 0.5rem 0.8rem;
    max-height: 0; overflow: hidden; transition: max-height 220ms ease;
  }
  .rs-group.rs-mobile-open .rs-dropdown { max-height: 600px; }
  .rs-actions { flex-direction: column; align-items: stretch; gap: 0.6rem; margin: 1rem 0 0; width: 100%; }
  .rs-btn { text-align: center; padding: 0.8rem 1.1rem; font-size: 0.85rem; }
  .rs-signin { text-align: center; padding: 0.7rem; border-top: 1px solid var(--rs-hairline); margin-top: 0.3rem; }
}