/* Header Styles - MelodyFoorge */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-silver-light);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
  gap: var(--space-6);
}

.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header__logo-text {
  font-family: 'Playfair Display', serif;
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1;
}

.header__nav {
  display: none;
}

@media (min-width: 768px) {
  .header__nav {
    display: block;
  }
}

.header__menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.header__menu a {
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.header__menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.header__menu a:hover {
  color: var(--color-accent);
}

.header__menu a:hover::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header__action-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--color-navy);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
}

.header__action-link:hover {
  color: var(--color-accent);
  background-color: var(--color-silver-light);
}

.header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
}

@media (min-width: 768px) {
  .header__menu-toggle {
    display: none;
  }
}

.header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 1.5rem;
  height: 1.125rem;
  position: relative;
}

.header__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

.header__menu-toggle[aria-expanded="true"] .header__hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__menu-toggle[aria-expanded="true"] .header__hamburger span:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle[aria-expanded="true"] .header__hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header__mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-silver-light);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6) 0;
  transform-origin: top;
  transition: opacity var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out);
}

.header__mobile-nav[hidden] {
  display: none;
  opacity: 0;
  transform: translateY(-1rem);
  pointer-events: none;
}

.header__mobile-nav:not([hidden]) {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.header__mobile-menu {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.header__mobile-menu a {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-navy);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-silver-light);
  transition: color var(--duration-fast) var(--ease-out);
}

.header__mobile-menu a:hover {
  color: var(--color-accent);
}

@media (prefers-reduced-motion: reduce) {
  .header__mobile-nav {
    transition: none;
  }
  
  .header__hamburger span {
    transition: none;
  }
}