/* ============================================================
   БотДиспетчер — Правила чата (docs layout, NestJS-style)
   Ref: https://docs.nestjs.com/
   ============================================================ */

.page-rules {
  background: var(--neutral-25);
}

.page-rules .rules-shell {
  padding: 2rem 0 4.5rem;
}

.page-rules .rules-shell__inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

/* ---- Left rail (On this page) ---- */
.page-rules .rules-rail {
  position: sticky;
  top: calc(var(--header-h) + 1.25rem);
  padding-top: 0.25rem;
}

.page-rules .rules-rail__title {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neutral-500);
}

.page-rules .rules-rail__nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-left: 1px solid var(--neutral-200);
}

.page-rules .rules-rail__nav a {
  display: block;
  padding: 0.4rem 0 0.4rem 0.9rem;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--neutral-600);
  text-decoration: none;
  font-size: 0.88rem;
  line-height: 1.4;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.page-rules .rules-rail__nav a:hover {
  color: var(--hd-blue-600);
  border-left-color: var(--hd-blue-400);
}

.page-rules .rules-rail__nav a.is-active {
  color: var(--hd-blue-600);
  font-weight: 600;
  border-left-color: var(--hd-blue-600);
}

/* ---- Main content ---- */
.page-rules .rules-content {
  min-width: 0;
  padding-bottom: 1rem;
  font-size: 15px;
  line-height: 1.7;
  color: var(--neutral-700);
  -webkit-font-smoothing: antialiased;
}

.page-rules .rules-content__header {
  margin-bottom: 2.75rem;
}

.page-rules .rules-content__eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hd-blue-600);
}

.page-rules .rules-content__header h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--neutral-900);
}

.page-rules .rules-content__lead {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--neutral-600);
}

.page-rules .rules-section {
  margin: 0 0 2.75rem;
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}

.page-rules .rules-section h2 {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--neutral-900);
}

.page-rules .rules-section h3 {
  margin: 1.65rem 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--neutral-900);
}

.page-rules .rules-section p {
  margin: 0 0 1rem;
}

.page-rules .rules-section strong {
  color: var(--neutral-900);
  font-weight: 600;
}

.page-rules .rules-section ul {
  margin: 0.4rem 0 1.15rem;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.55rem;
}

.page-rules .rules-section li {
  line-height: 1.65;
}

.page-rules .rules-section a {
  color: var(--hd-blue-600);
  text-decoration: none;
  word-break: break-word;
}

.page-rules .rules-section a:hover {
  text-decoration: underline;
}

/* NestJS-style info callout */
.page-rules .rules-note {
  margin: 1.35rem 0;
  padding: 1.15rem 1.25rem;
  background: rgba(37, 83, 224, 0.04);
  border: 1px solid rgba(37, 83, 224, 0.14);
  border-left: 4px solid var(--hd-blue-500);
  border-radius: 12px;
  line-height: 1.6;
}

.page-rules .rules-note p {
  margin: 0;
  color: var(--neutral-800);
}

.page-rules .rules-note strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hd-blue-600);
}

.page-rules .nav a[aria-current="page"] {
  color: var(--hd-blue-600);
}

@media (max-width: 960px) {
  .page-rules .rules-shell {
    padding: 1.5rem 0 3.5rem;
  }

  .page-rules .rules-shell__inner {
    width: min(100% - 2rem, var(--max));
    grid-template-columns: 1fr;
    gap: 1.35rem;
  }

  .page-rules .rules-rail {
    position: static;
    padding: 1rem 1.1rem;
    background: #fff;
    border: 1px solid var(--neutral-200);
    border-radius: 12px;
  }

  .page-rules .rules-rail__nav {
    border-left: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }

  .page-rules .rules-rail__nav a {
    margin-left: 0;
    padding: 0.55rem 0;
    border-left: 0;
    border-bottom: 1px solid var(--neutral-100);
  }

  .page-rules .rules-rail__nav a:last-child {
    border-bottom: none;
  }

  .page-rules .rules-rail__nav a.is-active {
    border-left: 0;
    color: var(--hd-blue-600);
  }
}

@media (max-width: 720px) {
  .page-rules .rules-shell__inner {
    width: min(100% - 1.5rem, var(--max));
  }

  .page-rules .rules-content {
    font-size: 15px;
  }

  .page-rules .rules-content__header {
    margin-bottom: 2rem;
  }

  .page-rules .rules-section {
    margin-bottom: 2.15rem;
  }

  .page-rules .rules-note {
    padding: 1rem 1.05rem;
  }
}

@media (max-width: 480px) {
  .page-rules .rules-shell {
    padding: 1.15rem 0 3rem;
  }

  .page-rules .rules-shell__inner {
    width: min(100% - 1.25rem, var(--max));
  }

  .page-rules .rules-content__header h1 {
    font-size: 1.25rem;
  }

  .page-rules .rules-section h2 {
    font-size: 1.12rem;
  }

  .page-rules .rules-section ul {
    padding-left: 1.05rem;
  }
}