/* ================================================================
   PAGE LAYOUT — shared by sidebar pages (changelog, resources)
   ================================================================ */

.page-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.page-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  padding-top: clamp(32px, 5vw, var(--space-16));
  padding-bottom: var(--space-24);
}

/* SIDEBAR */

.page-sidebar {
  padding-right: var(--space-10);
  border-right: 1px solid var(--border-hairline);
  position: sticky;
  top: 84px;
  align-self: start;
}

.page-title {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 32px;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-2-5);
}

.page-subtitle {
  font-size: 14px;
  line-height: var(--leading-relaxed);
  color: var(--text-tertiary);
  letter-spacing: -0.005em;
}

.sidebar-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-6) 0 var(--space-4);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-px);
}

.sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-2-5);
  margin: 0 calc(-1 * var(--space-2-5));
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  transition: color 0.15s ease, background 0.15s ease;
  letter-spacing: -0.005em;
}

.sidebar-link:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.sidebar-link.active {
  color: var(--text-primary);
  border-left: 2px solid var(--glossi-orange);
  padding-left: calc(var(--space-2-5) - 2px);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.sidebar-link svg {
  width: 14px;
  height: 14px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

/* CONTENT BACK LINK — shared by articles, toolkits, case studies */

.content-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 0.15s ease;
  margin-bottom: var(--space-6);
}
.content-back:hover { color: var(--text-primary); }
.content-back svg { flex-shrink: 0; }

/* CONTENT AREA */

.page-content {
  padding-left: var(--space-10);
}

/* RESPONSIVE */

@media (max-width: 900px) {
  .page-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-top: var(--space-10);
  }
  .page-sidebar {
    position: static;
    padding-right: 0;
    border-right: none;
    border-bottom: 1px solid var(--border-hairline);
    padding-bottom: var(--space-8);
  }
  .sidebar-divider { margin: var(--space-4) 0 var(--space-3); }
  .sidebar-nav { flex-direction: row; gap: 0; flex-wrap: wrap; }
  .sidebar-link { margin: 0; padding: var(--space-2) var(--space-3); }
  .page-content { padding-left: 0; }
}

@media (max-width: 768px) {
  .page-title { font-size: 28px; }
}