.rules-page {
  padding-bottom: 120px;
  background:
    radial-gradient(circle at top left, rgba(179, 0, 0, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.08), transparent 20%),
    #030303;
}

.rules-hero {
  padding-top: 150px;
  padding-bottom: 48px;
}

.rules-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) 320px;
  gap: 24px;
  align-items: end;
}

.rules-kicker,
.rules-sidebar-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.68);
}

.rules-kicker::before,
.rules-sidebar-kicker::before {
  content: "";
  width: 34px;
  height: 1px;
  background: rgba(255, 255, 255, 0.34);
}

.rules-hero-copy h1 {
  margin: 18px 0 14px;
  font-size: clamp(3.7rem, 8vw, 6.8rem);
}

.rules-hero-copy p,
.rules-hero-card p,
.rules-article-head p,
.rules-nav-link span {
  color: rgba(255, 255, 255, 0.72);
}

.rules-hero-card,
.rules-sidebar-card,
.rules-article {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 24px;
  background: rgba(9, 9, 9, 0.92);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(10px);
}

.rules-hero-card {
  padding: 28px;
}

.rules-hero-card strong {
  display: block;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 4rem;
  letter-spacing: 0.06em;
}

.rules-hero-card span {
  display: block;
  margin-top: 6px;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: #ffffff;
}

.rules-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.rules-sidebar {
  position: sticky;
  top: 120px;
}

.rules-sidebar-card {
  padding: 22px;
  max-height: calc(100vh - 140px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.rules-sidebar-head h2,
.rules-article-head h2,
.rules-nav-group h3 {
  margin: 0;
}

.rules-sidebar-head h2,
.rules-article-head h2 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.04em;
}

.rules-sidebar-head h2 {
  margin-top: 12px;
  font-size: 2rem;
}

.rules-mobile-toggle {
  display: none;
  margin-top: 16px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.rules-mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.09);
}

.rules-sidebar-head {
  flex: 0 0 auto;
}

.rules-sidebar-groups {
  flex: 1 1 auto;
  overflow-y: auto;
  padding-right: 6px;
}

.rules-sidebar-groups::-webkit-scrollbar {
  width: 8px;
}

.rules-sidebar-groups::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 999px;
}

.rules-sidebar-groups::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 999px;
}

.rules-sidebar-groups::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.24);
}

.rules-nav-group + .rules-nav-group {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.rules-nav-group h3 {
  margin-bottom: 12px;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.62);
}

.rules-nav-link {
  display: block;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid transparent;
  transition: 0.18s ease;
}

.rules-nav-link + .rules-nav-link {
  margin-top: 10px;
}

.rules-nav-link strong,
.rules-nav-link span {
  display: block;
}

.rules-nav-link strong {
  margin-bottom: 5px;
}

.rules-nav-link:hover,
.rules-nav-link.is-active {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
}

.rules-article {
  padding: 34px;
}

.rules-article-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rules-article-head h2 {
  margin-top: 16px;
  font-size: clamp(2.6rem, 5vw, 4.2rem);
}

.rules-pill {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(179, 0, 0, 0.16);
  border: 1px solid rgba(179, 0, 0, 0.28);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
}

.rules-meta {
  display: grid;
  gap: 10px;
  align-content: start;
  text-align: right;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.86rem;
}

.rules-prose {
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.8;
}

.rules-prose h2,
.rules-prose h3,
.rules-prose h4 {
  margin-top: 2.2rem;
  margin-bottom: 0.85rem;
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.04em;
  line-height: 1;
}

.rules-prose h2 { font-size: 2.5rem; }
.rules-prose h3 { font-size: 2rem; }
.rules-prose h4 { font-size: 1.5rem; }

.rules-prose p,
.rules-prose ul,
.rules-prose ol,
.rules-prose blockquote {
  margin: 0 0 1rem;
}

.rules-prose ul,
.rules-prose ol {
  padding-left: 1.4rem;
}

.rules-prose blockquote {
  padding: 18px 20px;
  border-left: 3px solid rgba(179, 0, 0, 0.8);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 16px 16px 0;
}

.rules-prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.2rem;
}

.rules-prose th,
.rules-prose td {
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 980px) {
  .rules-hero-grid,
  .rules-layout,
  .rules-article-head {
    grid-template-columns: 1fr;
    display: grid;
  }

  .rules-sidebar {
    position: static;
  }

  .rules-meta {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .rules-hero {
    padding-top: 128px;
  }

  .rules-article,
  .rules-sidebar-card,
  .rules-hero-card {
    padding: 22px;
    border-radius: 20px;
  }

  .rules-layout {
    gap: 16px;
  }

  .rules-sidebar-card {
    position: sticky;
    top: 92px;
    z-index: 20;
    max-height: none;
    overflow: visible;
  }

  .rules-sidebar-head h2 {
    font-size: 1.7rem;
  }

  .rules-mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .rules-sidebar-groups {
    display: none;
    margin-top: 18px;
    max-height: min(60vh, 420px);
    padding-right: 4px;
  }

  .rules-sidebar-groups.is-open {
    display: block;
  }

  .rules-nav-group + .rules-nav-group {
    margin-top: 18px;
    padding-top: 18px;
  }

  .rules-nav-link {
    padding: 12px 14px;
  }

  .rules-article {
    padding-top: 24px;
  }
}