.site-header {
  position: relative;
  z-index: 100;
  min-height: 4.75rem;
  border-bottom: 1px solid var(--color-line-subtle);
  background: var(--surface-section);
}

.site-header__inner {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  gap: var(--space-4);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 0 1 auto;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-cream-50);
  text-decoration: none;
}

.site-header__brand:hover { color: var(--color-cream-50); }

.site-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 2.5rem;
  border-radius: 0;
  padding: 9%;
  background: #17191d;
  object-fit: contain;
}

.site-header__brand-copy {
  display: grid;
  min-width: 0;
  gap: 0.0625rem;
  line-height: 1;
}

.site-header__brand-name {
  overflow: hidden;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header__brand-description {
  overflow: hidden;
  color: var(--color-cream-300);
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  width: 3rem;
  height: 3rem;
  flex: 0 0 3rem;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  border: var(--border-default);
  border-radius: var(--radius-md);
  padding: 0;
  background: var(--surface-card);
}

.site-header__toggle:hover { border-color: var(--color-amber-400); }

.site-header__toggle-lines {
  display: grid;
  width: 1.25rem;
  gap: 0.25rem;
}

.site-header__toggle-lines span {
  display: block;
  height: 0.125rem;
  border-radius: 999px;
  background: var(--color-cream-50);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(1) { transform: translateY(0.375rem) rotate(45deg); }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(2) { opacity: 0; }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(3) { transform: translateY(-0.375rem) rotate(-45deg); }

.site-header__navigation {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
}

.site-header__nav-list {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: clamp(0.5rem, 1.2vw, 1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-cream-300);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__nav-list a:hover,
.site-header__nav-list a[aria-current="page"] { color: var(--color-amber-400); }

.site-header__play {
  min-height: 2.75rem;
  flex: 0 0 auto;
  padding: 0.625rem 0.75rem;
  font-size: 0.8125rem;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__play svg {
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
}

.site-header__mobile-link { display: none !important; }

@media (max-width: 71.99rem) {
  .site-header { min-height: 4rem; }

  .site-header__inner {
    position: relative;
    min-height: 4rem;
  }

  .site-header__logo {
    width: 2.125rem;
    height: 2.125rem;
    flex-basis: 2.125rem;
  }

  .site-header__brand-name { font-size: 1.0625rem; }
  .site-header__toggle { display: inline-flex; }

  .site-header__navigation {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    max-height: min(75vh, 38rem);
    overflow: auto;
    border: var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    background: var(--surface-card);
    box-shadow: var(--shadow-raised);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: opacity var(--transition-menu), transform var(--transition-menu), visibility var(--transition-menu);
    visibility: hidden;
  }

  .site-header__navigation.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }

  .site-header__nav-list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: 100%;
    gap: 0;
  }

  .site-header__nav-list li,
  .site-header__nav-list li + li {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
  }

  .site-header__nav-list a {
    display: flex;
    width: 100%;
    min-height: 2.875rem;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--color-line-subtle);
    padding: 0.625rem var(--space-2);
    font-size: var(--text-sm);
    text-align: center;
  }

  .site-header__mobile-link { display: block !important; }

  .site-header__play {
    display: inline-flex;
    width: fit-content;
    min-width: 12rem;
    max-width: 100%;
    min-height: 3rem;
    align-items: center;
    justify-content: center;
    margin-top: var(--space-3);
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 25.99rem) {
  .site-header__brand-copy { display: none; }
  .site-header__inner { gap: var(--space-2); }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__navigation,
  .site-header__toggle-lines span { transition: none; }
}