/* ===========================
   NAVIGATION
   =========================== */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 1.5rem;
  transition: background var(--dur-mid) var(--ease-out),
              padding var(--dur-mid) var(--ease-out),
              backdrop-filter var(--dur-mid) var(--ease-out);
}

.site-nav.scrolled {
  background: rgba(10, 8, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.875rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 0;
  transition: opacity var(--dur-fast);
}

.nav-logo:hover { opacity: 0.8; }

.logo-t {
  color: var(--pink);
  font-size: 2rem;
  line-height: 1;
}

.logo-name {
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-link.active {
  color: var(--pink);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--pink);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--dur-mid) var(--ease-out),
              opacity var(--dur-mid);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--bg-elevated);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem 2rem;
    gap: 0.5rem;
    transform: translateX(100%);
    transition: transform var(--dur-mid) var(--ease-out);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1.1rem;
    padding: 0.6rem 0;
    width: 100%;
  }
}