/* ===== Header ===== */
.site-header-shell {
  position: sticky;
  top: 0;
  z-index: 110;
}

.responsible-ribbon {
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px var(--space-4);
  background-color: #f43f5e;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
}

.site-header {
  position: relative;
  background-color: var(--bg-page);
  border-bottom: 1px solid var(--accent-gold);
}

.site-header__inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Brand */
.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text-primary);
  flex-shrink: 0;
}

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

.site-header__brand-text {
  font-family: var(--heading-font);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
}

/* Toggle button */
.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 110;
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform 0.3s, opacity 0.3s;
  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);
}

/* Navigation */
.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none !important;
  margin: 0;
  padding: 0;
}

.site-header__nav-list li {
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  display: inline-block;
  padding: var(--space-2) 0;
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-base);
  line-height: 1;
  transition: color 0.2s;
  position: relative;
}

.site-header__nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-gold);
  transform: scaleX(0);
  transition: transform 0.2s;
}

.site-header__nav-list a:hover,
.site-header__nav-list a:focus {
  color: var(--accent-gold);
}

.site-header__nav-list a:hover::after,
.site-header__nav-list a:focus::after {
  transform: scaleX(1);
}

/* Mobile styles */
@media (max-width: 767px) {
  .responsible-ribbon {
    min-height: 36px;
    padding-inline: var(--space-3);
    font-size: 0.75rem;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background-color: var(--bg-page);
    border-right: 1px solid var(--accent-gold);
    padding: 80px var(--space-4) var(--space-4);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 105;
    flex-direction: column;
    align-items: flex-start;
    overflow-y: auto;
  }

  .site-header__nav[aria-hidden="false"] {
    transform: translateX(0);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    width: 100%;
  }

  .site-header__nav-list a {
    font-size: 1.25rem;
    padding: var(--space-2) 0;
  }

  /* Overlay */
  .site-header__nav-overlay {
    position: fixed;
    inset: 0;
    background-color: var(--overlay-dark);
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }

  .site-header__nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (min-width: 768px) {
  .site-header__brand-text {
    display: inline;
  }
}

@media (max-width: 767px) {
  .site-header__brand-text {
    display: none;
  }

  .site-header__logo {
    width: 32px;
    height: 32px;
  }
}