:root {
  --bg: #0b0b0f;
  --panel-rgb: 18, 18, 26;
  --panel-alpha: 0.72;
  --panel: rgba(var(--panel-rgb), var(--panel-alpha));
  --bg-tint-alpha: 0.55;
  --text: #e7e7ee;
  --muted: #fcfcff;
  --brand: #8ac7ff;
  --accent: #81f4d6;
  --danger: #ff6b6b;
  --warn: #ffcf66;
  --border: rgba(97, 87, 87, 0.199);
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.205);
}

html,
body {
  background:
    linear-gradient(rgba(11, 11, 15, var(--bg-tint-alpha)), rgba(11, 11, 15, var(--bg-tint-alpha))),
    url('/fon/joinfon.webp') center / cover fixed no-repeat;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell,
    "Noto Sans", "Helvetica Neue", Arial, sans-serif;
}

.rules-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.hero {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(57, 159, 255, 0.288), rgba(13, 248, 185, 0.308));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.hero__tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.hero__title {
  font-size: 32px;
  margin: 4px 0 6px;
}

.hero__lead {
  color: var(--muted);
  margin: 0 0 10px;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.toc {
  position: sticky;
  top: 16px;
  align-self: start;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  max-height: calc(100vh - 32px);
  overflow: auto;
}

.toc {
  display: none !important;
}

.toc__title {
  font-weight: 700;
  margin-bottom: 8px;
}

#toc a {
  display: block;
  padding: 6px 8px;
  color: var(--muted);
  text-decoration: none;
  border-radius: 8px;
}

#toc a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

#toc a.active {
  color: var(--text);
  background: rgba(138, 199, 255, 0.15);
}

#toc .toc-h2 {
  font-weight: 600;
}

#toc .toc-h3 {
  padding-left: 14px;
  font-size: 14px;
}

.content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
  counter-reset: sec;
}

.sep {
  margin-top: 28px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}

.content > section {
  counter-increment: sec;
}

.content > section .num {
  list-style: none;
  padding-left: 60px;
  counter-reset: sub;
}

.content > section .num > li {
  position: relative;
  margin: 8px 0;
  counter-increment: sub;
}

.content > section .num > li::before {
  content: counter(sec) "." counter(sub) " ";
  position: absolute;
  left: -60px;
  width: 52px;
  color: var(--muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.status-badge {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.status-badge.active {
  background: rgba(245, 81, 81, 0.411);
  color: #dff0ff;
}

.status-badge.passive {
  background: rgba(129, 244, 214, 0.18);
  color: #e6fff8;
}

.note {
  color: var(--warn);
}

.varn {
  color: #ff3131;
}

.varnhead {
  color: #ff6b6b;
}

.summary-highlight {
  color: var(--accent);
  font-weight: 700;
}

.page-footer {
  margin-top: 24px;
  display: flex;
  justify-content: flex-end;
}

.backtotop {
  color: var(--brand);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 10px;
}

.backtotop:hover {
  background: rgba(255, 255, 255, 0.06);
}

.content a {
  color: var(--brand);
  text-underline-offset: 2px;
}

.content a:hover {
  text-decoration: underline;
}

@media (max-width: 980px) {
  .rules-container {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
    max-height: none;
    order: 2;
  }
}

@media (max-width: 640px) {
  .content > section .num {
    padding-left: 52px;
  }

  .content > section .num > li::before {
    left: -52px;
    width: 46px;
    font-size: 14px;
  }
}

@media print {
  :root {
    --bg: #ffffff00;
    --text: #000;
    --panel: #ffffff;
    --border: #ddd;
  }

  body {
    background: #fff;
    color: #000;
  }

  .rules-container {
    box-shadow: none;
    max-width: 100%;
    padding: 0;
  }

  .hero,
  .toc,
  .content {
    border: none;
    box-shadow: none;
  }

  .backtotop {
    display: none;
  }
}

.theme-controls {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 1000;
}

.theme-controls__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  cursor: pointer;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
}

.theme-controls__panel {
  margin-top: 8px;
  padding: 12px;
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  width: 260px;
  display: none;
}

.theme-controls.is-open .theme-controls__panel {
  display: block;
}

.theme-controls__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  margin: 8px 0;
}

.theme-controls__label {
  font-size: 13px;
  color: var(--muted);
}

.theme-controls input[type="range"] {
  width: 100%;
}

.theme-controls__actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 8px;
}

.theme-controls__btn {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}

.theme-controls__btn:hover {
  background: rgba(255, 255, 255, 0.1);
}