.rules-page {
  --rules-accent: linear-gradient(90deg, var(--valorium), var(--blend), var(--infernal-bright));
}

.rules-hero {
  position: relative;
  padding: clamp(3.5rem, 8vw, 6rem) 0 clamp(2.5rem, 5vw, 3.5rem);
  overflow: hidden;
}

.rules-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 45% 80% at 5% 40%, rgba(147, 165, 255, 0.12), transparent 55%),
    radial-gradient(ellipse 40% 70% at 95% 35%, rgba(125, 1, 1, 0.14), transparent 55%);
}

.rules-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}

.rules-hero__mark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.rules-hero__mark img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 0 12px rgba(147, 165, 255, 0.25));
}

.rules-hero__mark img:last-child {
  filter: drop-shadow(0 0 12px rgba(194, 58, 58, 0.28));
}

.rules-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.2vw, 4.4rem);
  font-weight: 600;
  line-height: 1.04;
  color: var(--text);
}

.rules-hero h1 em {
  font-style: italic;
  background: var(--rules-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.rules-hero__aside {
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(155deg, rgba(147, 165, 255, 0.08), transparent 40%, rgba(125, 1, 1, 0.1)),
    var(--surface);
  color: var(--muted);
}

.rules-hero__aside strong {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.rules-strip {
  border-block: 1px solid var(--line);
  background: rgba(28, 26, 26, 0.55);
}

.rules-strip__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.rules-strip article {
  padding: 1.35rem 1.5rem;
  background: var(--bg);
}

.rules-strip h2 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text);
}

.rules-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.rules-doc {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) minmax(220px, 0.55fr);
  gap: clamp(1.5rem, 3vw, 2.75rem);
  align-items: start;
  padding: clamp(3rem, 6vw, 4.5rem) 0 var(--space-section);
}

.rules-toc {
  position: sticky;
  top: calc(var(--header-h) + 1.25rem);
  padding: 1.35rem 1.1rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(147, 165, 255, 0.05), transparent 35%, rgba(125, 1, 1, 0.06)),
    var(--surface);
}

.rules-toc__label {
  margin: 0 0 0.9rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.rules-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.25rem;
}

.rules-toc__link {
  display: block;
  padding: 0.55rem 0.65rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-left: 2px solid transparent;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.rules-toc__link:hover,
.rules-toc__link.is-active {
  color: var(--text);
  border-left-color: var(--blend);
  background: linear-gradient(90deg, rgba(147, 165, 255, 0.1), rgba(194, 58, 58, 0.08));
}

.rules-content {
  min-width: 0;
}

.rules-intro {
  margin-bottom: 2.5rem;
  padding: 1.75rem 1.85rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(147, 165, 255, 0.08), transparent 45%, rgba(125, 1, 1, 0.09)),
    var(--surface);
}

.rules-intro p {
  margin: 0;
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 56rem;
  line-height: 1.75;
}

.rule-section {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
  padding: clamp(2rem, 3.5vw, 2.75rem) 0;
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(90deg, rgba(147, 165, 255, 0.35), rgba(209, 211, 210, 0.15), rgba(194, 58, 58, 0.35)) 1;
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}

.rule-section__marker {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  line-height: 1;
  background: linear-gradient(160deg, var(--valorium), var(--infernal-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.rule-section:nth-child(even) .rule-section__marker {
  background: linear-gradient(160deg, var(--infernal-bright), var(--valorium));
  -webkit-background-clip: text;
  background-clip: text;
}

.rule-section__body h2 {
  margin: 0 0 0.95rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 2.4vw, 2rem);
  color: var(--text);
}

.rule-section__body p {
  margin: 0 0 0.9rem;
  color: var(--muted);
  max-width: 62rem;
  font-size: 1.05rem;
}

.rule-section__body p:last-child {
  margin-bottom: 0;
}

.rule-section--consequences {
  border-bottom: 0;
  border-image: none;
}

.rules-rail {
  position: sticky;
  top: calc(var(--header-h) + 1.25rem);
  display: grid;
  gap: 1rem;
}

.rules-rail__card {
  padding: 1.35rem 1.4rem;
  border: 1px solid var(--line);
  background: var(--surface);
}

.rules-rail__card--valorium {
  background: linear-gradient(160deg, var(--valorium-soft), var(--surface) 70%);
  border-color: rgba(147, 165, 255, 0.28);
}

.rules-rail__card--infernal {
  background: linear-gradient(160deg, var(--infernal-soft), var(--surface) 70%);
  border-color: rgba(194, 58, 58, 0.3);
}

.rules-rail__card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text);
}

.rules-rail__card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.rules-cta {
  margin-top: 3rem;
  padding: clamp(1.75rem, 3vw, 2.25rem);
  border: 1px solid transparent;
  background:
    linear-gradient(120deg, rgba(147, 165, 255, 0.12), transparent 50%, rgba(125, 1, 1, 0.12)),
    var(--surface);
  border-image: linear-gradient(90deg, rgba(147, 165, 255, 0.5), rgba(194, 58, 58, 0.5)) 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.rules-cta p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  color: var(--text);
}

@media (max-width: 1280px) {
  .rules-doc {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .rules-rail {
    display: none;
  }
}

@media (max-width: 960px) {
  .rules-hero__grid,
  .rules-strip__inner,
  .rules-doc {
    grid-template-columns: 1fr;
  }

  .rules-toc {
    position: static;
  }

  .rules-toc__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .rules-toc__link {
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .rules-toc__link.is-active {
    border-bottom-color: var(--blend);
  }
}

@media (max-width: 560px) {
  .rule-section {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }
}