/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--section-pad-h);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-logo);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

.logo-text {
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--light-gray);
  padding: 6px 12px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

/* CTA */
.nav-cta {
  flex-shrink: 0;
}

.nav-cta .btn {
  padding: 10px 22px;
  font-size: 15px;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

/* Mobile overlay */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 26, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 80px 32px 40px;
}

.nav-open .nav-mobile-overlay {
  display: flex;
}

.nav-mobile-overlay a {
  font-size: 24px;
  font-weight: 600;
  color: var(--white);
  padding: 12px 24px;
  text-align: center;
  width: 100%;
  max-width: 300px;
  border-radius: 12px;
  transition: background var(--transition), color var(--transition);
}

.nav-mobile-overlay a:hover {
  background: rgba(255, 255, 255, 0.06);
}

.nav-mobile-overlay a.active {
  color: var(--cyan);
}

.nav-mobile-overlay .btn {
  margin-top: 24px;
  width: 100%;
  max-width: 300px;
  justify-content: center;
}