/* ============================================================
   ROSTAR ROLEPLAY — Rules Page Styles
   ============================================================ */

.rules-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-7);
  align-items: start;
}

.rules-sidebar {
  position: sticky;
  top: calc(72px + var(--space-5));
}

.rules-category-nav {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.rules-category-nav .nav-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border);
  font-size: var(--font-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.rules-category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast);
  border-left: 2px solid transparent;
  font-size: var(--font-sm);
  color: var(--text-muted);
  font-weight: 500;
  width: 100%;
  text-align: left;
  background: none;
  border-top: none;
  border-right: none;
  border-bottom: none;
}

.rules-category-item:hover {
  background: var(--bg-elevated);
  color: var(--text-secondary);
}

.rules-category-item.active {
  background: var(--accent-glow);
  color: var(--accent-bright);
  border-left-color: var(--accent-bright);
}

.rules-card-group {
  margin-bottom: var(--space-7);
}

.rules-group-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.rules-group-title::before {
  content: '';
  width: 4px; height: 18px;
  background: var(--accent-bright);
  border-radius: 2px;
}

.rule-accordion-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: border-color var(--duration-fast);
}

.rule-accordion-item:hover { border-color: rgba(255,255,255,0.1); }

.rule-accordion-header {
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.rule-accordion-body {
  padding: 0 var(--space-5) var(--space-5);
  font-size: var(--font-sm);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-2);
  padding-top: var(--space-4);
}

@media (max-width: 1024px) {
  .rules-layout { grid-template-columns: 1fr; }
  .rules-sidebar { position: static; }
}