.site-header {
  position: relative;
  z-index: 100;
  width: 100%;
  background-color: var(--bg-deep);
  border-bottom: 1px solid var(--border-technical);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-mobile);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-md);
  min-height: 72px;
}

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

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

.site-header__nav-list a {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-header__nav-list a:hover {
  color: var(--signal-neon);
}

.site-header__nav-list a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--signal-neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

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

.site-header__nav--left {
  justify-self: start;
}

.site-header__nav--right {
  justify-self: end;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  justify-self: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

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

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  justify-self: end;
}

.site-header__reserve {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bg-deep);
  background-color: var(--signal-neon);
  border: 1px solid var(--signal-neon);
  clip-path: var(--clip-control);
  padding: var(--space-xs) var(--space-md);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.site-header__reserve:hover {
  background-color: var(--bg-deep);
  color: var(--signal-neon);
  border-color: var(--signal-neon);
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--border-technical);
  clip-path: var(--clip-control);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.site-header__toggle:hover {
  border-color: var(--signal-neon);
}

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

.site-header__toggle-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.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__mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--bg-deep);
  border-bottom: 1px solid var(--border-technical);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  z-index: 99;
  max-height: calc(100vh - 72px);
  overflow-y: auto;
  padding: var(--space-md);
}

.site-header__mobile-nav.is-open {
  display: block;
}

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

.site-header__mobile-list li {
  margin: 0;
}

.site-header__mobile-list a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  border-left: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__mobile-list a:hover {
  color: var(--signal-neon);
  border-left-color: var(--signal-neon);
  background-color: var(--bg-module);
}

@media (max-width: 1023px) {
  /* A clipped ancestor also clips the absolutely positioned mobile drawer. */
  .site-header {
    clip-path: none;
  }

  .site-header__nav--left,
  .site-header__nav--right {
    display: none;
  }

  .site-header__inner {
    grid-template-columns: auto 1fr auto;
  }

  .site-header__brand {
    justify-self: start;
  }

  .site-header__actions {
    justify-self: end;
  }

  .site-header__reserve {
    display: none;
  }

  .site-header__toggle {
    display: flex;
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    min-height: 64px;
    padding-inline: var(--space-md);
  }

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

  .site-header__wordmark {
    font-size: 1rem;
  }

  .site-header__mobile-nav {
    max-height: calc(100vh - 64px);
  }
}