/* Header Styles */

.header {
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-sm) 0;
  transition: all var(--transition-medium);
  background-color: transparent;
}

.header-dark {
  background-color: var(--color-dark);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.logo h1 {
  font-size: 1.5rem;
  color: var(--color-white);
  margin: 0;
  font-weight: 700;
  letter-spacing: 1px;
}

.main-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav li {
  margin: 0 var(--space-sm);
}

.main-nav a {
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: var(--space-xs) 0;
  position: relative;
  text-decoration: none;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-medium);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.main-nav a.active {
  color: var(--color-secondary);
}

/* Menu Toggle for Mobile */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.menu-toggle span {
  height: 3px;
  width: 100%;
  background-color: var(--color-white);
  border-radius: 3px;
  transition: all var(--transition-fast);
}

/* Header Scroll Effect */
.header.scrolled {
  background-color: var(--color-dark);
  box-shadow: var(--shadow-md);
  padding: var(--space-xs) 0;
}

/* Media Queries for Responsive Header */
@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--color-dark);
    flex-direction: column;
    padding: var(--space-xl) var(--space-md);
    transition: right var(--transition-medium);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
  }

  .main-nav.active {
    right: 0;
  }

  .main-nav ul {
    flex-direction: column;
    width: 100%;
  }

  .main-nav li {
    margin: var(--space-sm) 0;
  }

  .menu-toggle {
    display: flex;
    z-index: 1002;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}