/* Header component styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: transparent;
  border-bottom: var(--border-nav);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header.is-scrolled {
  background-color: var(--color-charcoal);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-mobile);
  height: 60px;
}

@media (min-width: 768px) {
  .site-header__inner {
    padding-inline: var(--container-pad-desktop);
    height: 72px;
  }
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
  min-width: 0;
}

.site-header__logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-satin);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 768px) {
  .site-header__logo {
    width: 44px;
    height: 44px;
  }

  .site-header__wordmark {
    font-size: 1.125rem;
  }
}

.site-header__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.site-header__toggle:hover {
  opacity: 0.8;
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-amber-deep);
  outline-offset: 2px;
}

.site-header__toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-satin);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-header__nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-charcoal);
  border-bottom: var(--border-nav);
  padding: var(--space-md) var(--container-pad-mobile);
  max-height: calc(100vh - 60px);
  overflow-y: auto;
  z-index: 1001;
}

.site-header__nav.is-open {
  display: block;
}

@media (min-width: 900px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    position: static;
    background: transparent;
    border: none;
    padding: 0;
    max-height: none;
    overflow: visible;
  }

  .site-header__nav.is-open {
    display: flex;
  }
}

.site-header__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 900px) {
  .site-header__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
  }
}

.site-header__item {
  margin: 0;
  padding: 0;
}

.site-header__link {
  display: block;
  padding: var(--space-xs) 0;
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-satin);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-header__link:hover {
  color: var(--color-gold);
}

.site-header__link:focus-visible {
  outline: 2px solid var(--color-amber-deep);
  outline-offset: 2px;
}

.site-header__cta {
  margin-top: var(--space-sm);
  align-self: flex-start;
}

@media (min-width: 900px) {
  .site-header__cta {
    margin-top: 0;
    align-self: center;
  }
}

/* Collision prevention for fixed header */
.site-header + * {
  margin-top: 60px;
}

@media (min-width: 768px) {
  .site-header + * {
    margin-top: 72px;
  }
}