.site-header {
  position: relative;
  z-index: 100;
  width: 100%;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 253, 252, 0.92);
  box-shadow: 0 4px 18px rgba(74, 46, 30, 0.06);
  backdrop-filter: blur(14px);
}

.site-header__inner {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-decoration: none;
  white-space: nowrap;
}

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

.site-header__logo {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 auto;
  object-fit: contain;
}

.site-header__brand-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: inline-grid;
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  place-content: center;
  gap: 0.25rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-background);
  color: var(--color-text);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-header__toggle:hover,
.site-header__toggle[aria-expanded="true"] {
  border-color: rgba(185, 104, 50, 0.35);
  background: var(--color-background-warm);
}

.site-header__toggle-line {
  display: block;
  width: 1.125rem;
  height: 0.125rem;
  border-radius: 99px;
  background: currentColor;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) { transform: translateY(0.375rem) 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(-0.375rem) rotate(-45deg); }

.site-header__nav {
  position: absolute;
  z-index: 110;
  top: calc(100% + 0.5rem);
  right: var(--container-padding);
  left: var(--container-padding);
  display: none;
  max-height: min(32rem, calc(100vh - 6rem));
  overflow: auto;
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  background: rgba(255, 253, 252, 0.98);
  box-shadow: var(--shadow-floating);
  backdrop-filter: blur(16px);
}

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

.site-header__nav-inner {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4);
}

.site-header__links {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__links li,
.site-header__links li + li { margin: 0; padding: 0; }

.site-header__links a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--font-size-meta);
  font-weight: 600;
  line-height: 1.25;
  text-decoration: none;
}

.site-header__links a:hover,
.site-header__links a[aria-current="page"] {
  background: var(--color-background-warm);
  color: var(--color-primary-hover);
}

.site-header__play { width: 100%; }
.site-header__external { font-size: 1.05em; }

@media (min-width: 48rem) {
  .site-header__inner { min-height: 5rem; }
  .site-header__logo { width: 2.5rem; height: 2.5rem; }
  .site-header__brand { font-size: 1.1875rem; }
  .site-header__nav { right: 1.5rem; left: auto; width: min(25rem, calc(100vw - 3rem)); }
}

@media (min-width: 68.75rem) {
  .site-header__inner { gap: var(--space-5); }
  .site-header__brand { flex: 0 1 auto; }
  .site-header__logo { width: 2.75rem; height: 2.75rem; }
  .site-header__toggle { display: none; }
  .site-header__nav {
    position: static;
    display: block;
    width: auto;
    max-height: none;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }
  .site-header__nav-inner {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0;
  }
  .site-header__links {
    display: flex;
    align-items: center;
    gap: 0.125rem;
  }
  .site-header__links a {
    min-height: 2.5rem;
    padding-inline: 0.5rem;
    white-space: nowrap;
  }
  .site-header__links li:nth-child(n+6) { display: none; }
  .site-header__play {
    width: auto;
    min-height: 2.5rem;
    padding-inline: 0.75rem;
    white-space: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header { backdrop-filter: none; }
}