/* ============================================
   MEB CREATIV — Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-5) 0;
  transition: background var(--dur-base) var(--ease-out),
              padding var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}

.nav--scrolled {
  background: rgba(13, 15, 26, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--space-4) 0;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo */
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: var(--weight-black);
  color: var(--color-white);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: opacity var(--dur-fast) var(--ease-out);
}

.nav__logo:hover { opacity: 0.85; }

.nav__logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav__logo-name {
  font-size: 1.75rem;
  font-weight: var(--weight-black);
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1;
}

.nav__logo-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: #AFA9EC;
  letter-spacing: 0.22em;
  line-height: 1;
}

.nav__logo-mark {
  width: 56px;
  height: 56px;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav__logo-mark svg {
  width: 56px;
  height: 56px;
  display: block;
}

/* Desktop Links */
.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-slate-400);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-white);
}

.nav__link.is-active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
}

/* CTA */
.nav__cta {
  display: none;
  flex-shrink: 0;
}

/* Hamburger (mobile) */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  padding: 2px;
  background: none;
  border: none;
}

.nav__hamburger-line {
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--dur-base) var(--ease-out),
              opacity var(--dur-base) var(--ease-out);
  transform-origin: center;
}

/* Mobile Menu Open State */
body.nav-open .nav__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.nav-open .nav__hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
body.nav-open .nav__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Overlay Menu */
.nav__mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-midnight);
  z-index: calc(var(--z-nav) - 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out);
}

body.nav-open .nav__mobile-menu {
  opacity: 1;
  pointer-events: all;
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.nav__mobile-link {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  transition: color var(--dur-fast) var(--ease-out);
  letter-spacing: var(--tracking-tight);
}

.nav__mobile-link:hover {
  color: var(--color-electric-light);
}

/* ── Desktop breakpoint ──────────────────────── */

@media (min-width: 1024px) {
  .nav__links {
    display: flex;
  }
  .nav__cta {
    display: block;
  }
  .nav__hamburger {
    display: none;
  }
}