/* nav.css — Navigation, mobile panel, brand */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(17, 18, 25, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  white-space: nowrap;
}

.brand-logo {
  display: block;
  width: auto;
  height: 22px;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 28px;
  color: #7e828a;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links a { transition: color 200ms ease; }
.nav-links a:hover { color: var(--fg); }
.nav-actions { display: none; align-items: center; gap: 12px; }

.menu-toggle {
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: #1e2028;
  color: var(--fg);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.menu-toggle svg { width: 20px; height: 20px; }

.mobile-panel {
  display: none;
  position: fixed;
  inset: 77px 0 auto;
  z-index: 19;
  padding: 20px;
  background: rgba(26, 28, 34, 0.96);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.mobile-panel.open { display: block; }
.mobile-panel a {
  display: block;
  padding: 15px 0;
  color: var(--fg);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Nav for light sections (transformation heroes) */
.nav-light {
  border-bottom-color: rgba(0,0,0,0.06);
  background: rgba(243,244,246,0.88);
}
.nav-light .nav-links { color: #686c74; }
.nav-light .nav-links a:hover { color: #222428; }
.nav-light .brand-logo { filter: invert(1); }
.nav-light .menu-toggle {
  border-color: rgba(0,0,0,0.08);
  background: white;
  color: #222428;
}

@media (min-width: 680px) {
  .brand-logo { height: 24px; }
}

@media (min-width: 980px) {
  .nav-links, .nav-actions { display: flex; }
  .menu-toggle { display: none; }
}