/* Header Styles */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: background-color var(--transition-normal);
  padding: var(--space-2) 0;
}

#header.scrolled {
  background-color: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  padding: var(--space-1) 0;
}

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

.logo {
  /* width: 150px; */
  transition: transform var(--transition-fast);
}

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

.menu {
  display: flex;
  list-style: none;
  gap: var(--space-3);
}

.menu li a {
  position: relative;
  font-weight: 600;
  font-size: 1.1rem;
  padding: var(--space-1) 0;
}

.menu li a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--color-secondary);
  transition: width var(--transition-normal);
}

.menu li a:hover::after,
.menu li a.active::after {
  width: 100%;
}

.contact-btn .btn {
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-secondary);
  color: var(--color-background);
  font-weight: 700;
}

.contact-btn .btn:hover {
  background-color: var(--color-secondary-light);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 24px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 3px;
  background-color: var(--color-text);
  border-radius: 3px;
  transition: all var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}