/* Header & Navigation */
header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  color: white;
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  transition: var(--transition);
}

.logo i {
  margin-right: 10px;
  font-size: 2rem;
}

.logo:hover {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s;
}

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu {
  display: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu {
    display: block;
  }
}