/* Header component styles */
.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--color-paper);
  border-bottom: 2px solid var(--color-ink);
}

.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: var(--space-sm) var(--container-padding-mobile);
  min-height: 72px;
}

.site-header__brand {
  flex-shrink: 0;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-ink);
}

.site-header__logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  display: block;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 0;
  background: transparent;
  border: 2px solid var(--color-ink);
  border-radius: var(--radius-control);
  cursor: pointer;
  transition: background-color var(--transition-duration) var(--transition-timing),
              border-color var(--transition-duration) var(--transition-timing);
}

.site-header__toggle:hover {
  background-color: var(--color-violet);
  border-color: var(--color-violet);
}

.site-header__toggle:focus-visible {
  outline: var(--focus-outline-width) solid var(--focus-outline-color);
  outline-offset: var(--focus-outline-offset);
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  transition: background-color var(--transition-duration) var(--transition-timing),
              transform var(--transition-duration) var(--transition-timing),
              opacity var(--transition-duration) var(--transition-timing);
}

.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: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-shrink: 0;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-item {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--color-ink);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-duration) var(--transition-timing),
              background-color var(--transition-duration) var(--transition-timing);
}

.site-header__nav-link:hover {
  color: var(--color-paper-inverse);
  background-color: var(--color-violet);
}

.site-header__nav-link:focus-visible {
  outline: var(--focus-outline-width) solid var(--focus-outline-color);
  outline-offset: var(--focus-outline-offset);
}

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

.site-header__cta {
  white-space: nowrap;
}

/* Mobile layout */
@media (max-width: 1023px) {
  .site-header__inner {
    flex-wrap: wrap;
    padding: var(--space-sm) var(--container-padding-mobile);
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background-color: var(--color-ink);
    color: var(--color-paper-inverse);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: var(--space-xl);
    padding: var(--space-2xl) var(--container-padding-mobile);
    overflow-y: auto;
    z-index: 200;
    transition: opacity var(--transition-duration) var(--transition-timing),
                transform var(--transition-duration) var(--transition-timing);
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
  }

  .site-header__nav.is-open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    width: 100%;
  }

  .site-header__nav-item {
    width: 100%;
  }

  .site-header__nav-link {
    display: block;
    padding: var(--space-md) var(--space-sm);
    font-size: 1.25rem;
    line-height: 1.3;
    color: var(--color-paper-inverse);
    white-space: normal;
    word-break: break-word;
  }

  .site-header__nav-link:hover {
    background-color: var(--color-violet);
    color: var(--color-paper-inverse);
  }

  .site-header__actions {
    width: 100%;
    margin-top: auto;
  }

  .site-header__cta {
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    padding: var(--space-sm) var(--container-padding-desktop);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: flex;
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    color: inherit;
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
    padding: 0;
    overflow: visible;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
  }

  .site-header__nav-link {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.875rem;
    white-space: nowrap;
  }

  .site-header__actions {
    width: auto;
    margin-top: 0;
  }

  .site-header__cta {
    width: auto;
  }
}