/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
  z-index: 100;
  transition: all 0.3s ease;
  padding: var(--spacing-md) 0;
}

.header.scrolled {
  background-color: var(--white);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-sm) 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo a {
  display: flex;
  align-items: center;
}

.logo-text {
  font-family: var(--heading-font);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  transition: all 0.3s ease;
}

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

.main-nav .nav-list {
  display: flex;
  gap: var(--spacing-xl);
}

.main-nav .nav-list a {
  position: relative;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  padding: var(--spacing-sm) 0;
}

.main-nav .nav-list a:hover {
  color: var(--primary-color);
}

.main-nav .nav-list a.active {
  color: var(--primary-color);
  font-weight: 600;
}

.main-nav .nav-list a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  border-radius: var(--border-radius-sm);
}

.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--primary-color);
  cursor: pointer;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--white);
  padding-top: 100px;
  z-index: 99;
  display: none;
  opacity: 0;
  transition: all 0.3s ease;
}

.mobile-menu.active {
  display: block;
  opacity: 1;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  text-align: center;
}

.mobile-menu ul li a {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--gray-800);
  padding: var(--spacing-sm) 0;
  display: block;
}

.mobile-menu ul li a:hover,
.mobile-menu ul li a.active {
  color: var(--primary-color);
}

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

  .mobile-menu-toggle {
    display: block;
  }

  .menu-icon {
    display: block;
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
  }
}