.site-shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.site-header {
  min-height: var(--header-height);
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-ivory);
}

.site-header__inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.wordmark {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-ink);
  font-size: 1.2rem;
  font-weight: 850;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.wordmark span {
  color: var(--color-accent);
}

.site-nav ul,
.responsible-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0;
  margin: 0;
  list-style: none;
}

.site-nav .action-link {
  min-height: 2.75rem;
  padding-block: var(--space-2);
}

.logout-form {
  margin: 0;
}

.site-main {
  flex: 1;
}

.site-footer {
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border-soft);
  background: var(--color-canvas);
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3) var(--space-6);
}

.responsible-shell {
  min-height: 100vh;
  background: var(--color-canvas);
}

.responsible-header {
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-surface);
}

.responsible-header__inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.responsible-grid {
  display: grid;
  width: min(100% - 2rem, var(--content-wide));
  margin-inline: auto;
  gap: var(--space-5);
  padding-block: var(--space-5) var(--space-8);
}

.responsible-sidebar {
  align-self: start;
  padding: var(--space-3);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.responsible-nav ul {
  align-items: stretch;
  flex-direction: column;
}

.responsible-main,
.child-main {
  min-width: 0;
}

.child-shell {
  min-height: 100vh;
  padding: var(--space-4);
  background: var(--color-sage);
}

.child-frame {
  width: min(100%, 68rem);
  margin-inline: auto;
}

.child-header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--space-2) var(--space-5);
}

@media (min-width: 48rem) {
  .responsible-grid {
    grid-template-columns: 14rem minmax(0, 1fr);
    gap: var(--space-6);
    padding-top: var(--space-6);
  }
}

@media (max-width: 39.99rem) {
  .site-header__inner {
    align-items: flex-start;
    padding-block: var(--space-3);
  }

  .site-nav ul {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .site-nav li:first-child {
    display: none;
  }
}