/* Header Styles */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-background);
  z-index: 100;
  transition: box-shadow var(--transition), background-color var(--transition);
}

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

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Logo */
.header__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

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

.header__logo-subtitle {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: var(--fw-regular);
  color: var(--color-text-light);
  letter-spacing: 0.5px;
}

/* Navigation */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header__nav-link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding: var(--spacing-xs) 0;
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition);
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
  width: 100%;
}

.header__nav-link:hover {
  color: var(--color-primary);
}

/* CTA Button in header */
.header__cta {
  padding: 0.75rem 1.5rem;
  font-size: var(--fs-small);
}

/* Mobile menu toggle */
.header__menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 28px;
  height: 24px;
  padding: 0;
  z-index: 110;
}

.header__menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}

.header__menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.header__menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile navigation overlay */
.header__nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  transition: opacity var(--transition);
}

.header__nav-overlay.active {
  opacity: 1;
}