.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}


.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(15, 5, 5, 0.95);
  backdrop-filter: blur(8px);
}


.nav__logo {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: 2px;
  position: relative;
  transition: color var(--transition);
}

.nav__logo::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav__logo:hover::after {
  width: 100%;
}


.nav__links {
  display: flex;
  gap: 36px;
}

.nav__links a {
  font-size: 15px;
  color: var(--cream-dim);
  position: relative;
  transition: color var(--transition);
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav__links a:hover {
  color: var(--cream);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__links a.active {
  color: var(--accent);
}


.nav__cta {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 10px 22px;
  border-radius: var(--radius);
  transition:
    background var(--transition),
    color var(--transition);
}

.nav__cta:hover {
  background: var(--accent);
  color: var(--cream);
}


.nav__burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__burger span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}


.nav__burger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.nav__burger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}


.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(15, 5, 5, 0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;

  
  opacity: 0;
  pointer-events: none;
  transform: translateY(-16px);
  transition:
    opacity 0.35s ease,
    transform 0.35s ease;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.mobile-menu__close {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  border: none;
  color: var(--cream);
  font-size: 32px;
  cursor: pointer;
  transition: color var(--transition);
}

.mobile-menu__close:hover {
  color: var(--accent);
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.mobile-menu__links li {
  overflow: hidden;
}

.mobile-menu__links a {
  display: block;
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--cream);
  padding: 8px 0;
  transition: color var(--transition);

  
  transform: translateY(40px);
  opacity: 0;
  transition:
    color var(--transition),
    transform 0.4s ease,
    opacity 0.4s ease;
}

.mobile-menu.open .mobile-menu__links a {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu.open .mobile-menu__links li:nth-child(1) a { transition-delay: 0.05s; }
.mobile-menu.open .mobile-menu__links li:nth-child(2) a { transition-delay: 0.1s; }
.mobile-menu.open .mobile-menu__links li:nth-child(3) a { transition-delay: 0.15s; }
.mobile-menu.open .mobile-menu__links li:nth-child(4) a { transition-delay: 0.2s; }

.mobile-menu__links a:hover {
  color: var(--accent);
}

.mobile-menu__deco {
  margin-top: 48px;
  color: var(--accent);
  font-size: 14px;
  opacity: 0.5;
  letter-spacing: 6px;
}


@media (max-width: 900px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  .nav {
    padding: 0 20px;
  }
}