/* ============================================================
   PIVOT POWER — Navigation
   Nav is always dark regardless of page theme.
   Tokens are scoped via .dark applied to <nav> in nav.html.
   ============================================================ */

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-7);
  background: rgba(12, 14, 17, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color 0.3s;
  color: var(--text);
}

/* Logo and actions pin to edges, links truly centered */
.nav-logo { margin-right: auto; }
.nav-actions { margin-left: auto; }

/* Logo — full lockup on desktop, mark only on mobile */
.nav-logo img {
  height: 34px;
  width: auto;
  display: block;
}

.nav-logo .nav-logo-mark {
  display: none;
  height: 32px;
  width: 32px;
}

/* Wordmark — centered between mark and hamburger on mobile only */
.nav-wordmark {
  display: none;
}

/* Links — absolutely centered in nav regardless of logo/action widths */
.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-size: 0.84rem;
  color: var(--text-2);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-links a.active { color: var(--text); }

/* ── TOOLTIPS ── */
.nav-links li {
  position: relative;
}

.nav-links a[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--bg-card-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.76rem;
  font-weight: 400;
  color: var(--text-2);
  line-height: 1.5;
  white-space: normal;
  width: 220px;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  z-index: 300;
  box-shadow: var(--shadow-card);
}

/* Arrow */
.nav-links a[data-tooltip]::before {
  content: '';
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  border: 5px solid transparent;
  border-bottom-color: var(--border-2);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  z-index: 301;
}

.nav-links li:hover a[data-tooltip]::after,
.nav-links li:hover a[data-tooltip]::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Auth buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-signin {
  font-size: 0.84rem;
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--transition);
  padding: 0.45rem 0.9rem;
}
.nav-signin:hover { color: var(--text); }

.nav-dashboard {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gold);
  text-decoration: none;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.nav-dashboard:hover { background: var(--gold-dim); }

.nav-cta {
  font-size: 0.82rem;
  font-weight: 700;
  color: #0C0E11;
  text-decoration: none;
  padding: 0.52rem 1.2rem;
  background: #C8A96E;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover {
  background: #D4BA85;
  transform: translateY(-1px);
}

/* Mobile hamburger — hidden until mobile */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  background: none;
  border: none;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile drawer — always dark to match nav */
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: #131620;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: var(--space-5) var(--space-5) var(--space-6);
  flex-direction: column;
  gap: var(--space-4);
  z-index: 199;
}

.nav-drawer.open { display: flex; }

.nav-drawer a {
  font-size: 1rem;
  color: var(--text-2);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}

.nav-drawer a:last-child { border-bottom: none; }

.nav-drawer .nav-cta {
  text-align: center;
  margin-top: var(--space-2);
  color: #1A1A1A;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .nav-hamburger {
    display: flex;
    margin-left: auto;
  }

  /* Swap lockup for mark on mobile */
  .nav-logo .nav-logo-full { display: none; }
  .nav-logo .nav-logo-mark { display: block; }

  /* Wordmark centered between mark and hamburger */
  .nav-wordmark {
    display: block;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    height: auto;
    width: 192px;
  }
}

@media (max-width: 480px) {
  .site-nav { padding: 0 var(--space-5); }
}