body {
  background-color: var(--bg-primary);
}

.site-nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-normal);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-nav .nav-inner {
  padding-right: 16px;
  padding-left: 16px;
}

.rules-app-brand {
  min-width: 0;
  gap: 8px;
  color: var(--text-primary);
  line-height: 1;
}

.rules-app-brand-logo {
  width: 36px;
  height: 36px;
  display: block;
  flex: 0 0 36px;
  border-radius: 8px !important;
  object-fit: contain;
}

.rules-app-brand-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
}

.rules-app-brand-copy strong {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1.05;
  white-space: nowrap;
}

.rules-app-brand-copy small {
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 0.64rem;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav .nav-links {
  align-self: stretch;
  gap: 2px;
}

.site-nav .nav-links > .rules-header-tab {
  width: 64px;
  min-height: 100%;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 7px 4px 6px;
  border-radius: 10px !important;
  color: var(--text-secondary);
  font-size: 0.67rem;
  font-weight: 600;
  line-height: 1;
}

.site-nav .nav-links > .rules-header-tab:hover {
  background: var(--bg-card-hover);
  color: #2563eb;
}

.site-nav .nav-links > .rules-header-tab:active,
.rules-bottom-tab:active {
  transform: scale(0.95);
}

.rules-nav-icon {
  width: 21px;
  height: 21px;
  display: block;
  background-color: currentColor;
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: contain;
  mask-position: center;
  mask-repeat: no-repeat;
  mask-size: contain;
}

.rules-nav-icon-home {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 10.7 12 3l9 7.7V21h-6v-6H9v6H3V10.7Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 10.7 12 3l9 7.7V21h-6v-6H9v6H3V10.7Z'/%3E%3C/svg%3E");
}

.rules-nav-icon-search {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23000' stroke-width='2' d='m21 21-4.4-4.4m2.4-5.1A7.5 7.5 0 1 1 4 11.5a7.5 7.5 0 0 1 15 0Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23000' stroke-width='2' d='m21 21-4.4-4.4m2.4-5.1A7.5 7.5 0 1 1 4 11.5a7.5 7.5 0 0 1 15 0Z'/%3E%3C/svg%3E");
}

.rules-nav-icon-game {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7.5 7h9a5.5 5.5 0 0 1 5.2 7.3l-1.4 4A2.5 2.5 0 0 1 16 19l-2-2h-4l-2 2a2.5 2.5 0 0 1-4.3-.7l-1.4-4A5.5 5.5 0 0 1 7.5 7ZM7 11v2H5v2h2v2h2v-2h2v-2H9v-2H7Zm9 2h2v-2h-2v2Zm-2 3h2v-2h-2v2Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7.5 7h9a5.5 5.5 0 0 1 5.2 7.3l-1.4 4A2.5 2.5 0 0 1 16 19l-2-2h-4l-2 2a2.5 2.5 0 0 1-4.3-.7l-1.4-4A5.5 5.5 0 0 1 7.5 7ZM7 11v2H5v2h2v2h2v-2h2v-2H9v-2H7Zm9 2h2v-2h-2v2Zm-2 3h2v-2h-2v2Z'/%3E%3C/svg%3E");
}

.rules-nav-icon-ranking {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 3h10v3h4v2c0 3.3-1.8 5.4-5 6.1A5 5 0 0 1 13 17v2h4v2H7v-2h4v-2a5 5 0 0 1-3-2.9C4.8 13.4 3 11.3 3 8V6h4V3Zm0 5H5c0 1.8.7 3 2.2 3.7A9 9 0 0 1 7 10V8Zm10 0v2c0 .6-.1 1.2-.2 1.7C18.3 11 19 9.8 19 8h-2Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 3h10v3h4v2c0 3.3-1.8 5.4-5 6.1A5 5 0 0 1 13 17v2h4v2H7v-2h4v-2a5 5 0 0 1-3-2.9C4.8 13.4 3 11.3 3 8V6h4V3Zm0 5H5c0 1.8.7 3 2.2 3.7A9 9 0 0 1 7 10V8Zm10 0v2c0 .6-.1 1.2-.2 1.7C18.3 11 19 9.8 19 8h-2Z'/%3E%3C/svg%3E");
}

.rules-nav-icon-profile {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 12a5 5 0 1 0 0-10 5 5 0 0 0 0 10Zm0 2c-5 0-9 2.5-9 5.5V22h18v-2.5c0-3-4-5.5-9-5.5Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 12a5 5 0 1 0 0-10 5 5 0 0 0 0 10Zm0 2c-5 0-9 2.5-9 5.5V22h18v-2.5c0-3-4-5.5-9-5.5Z'/%3E%3C/svg%3E");
}

.site-nav .nav-toggle {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border-normal);
  border-radius: 10px !important;
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.page-wrap.rules-page {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 325px;
  align-items: start;
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 32px) 24px 56px;
}

.rules-page-sidebar > .sidebar-legal-note {
  margin-top: 15px;
  text-align: left;
}

.rules-hero,
.rule-list {
  background: var(--bg-card);
  border: 1px solid var(--border-normal);
  border-radius: 16px !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.02);
}

.rules-hero {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.rules-shield {
  width: 40px;
  height: 40px;
  display: block;
  flex: 0 0 40px;
  position: relative;
  border-radius: 12px !important;
  background: var(--bg-card-hover);
}

.rules-shield::before {
  content: "";
  position: absolute;
  inset: 8px;
  display: block;
  background-color: #2563eb;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 4 5v6c0 5.1 3.4 9.8 8 11 4.6-1.2 8-5.9 8-11V5l-8-3Zm-1.1 14.2-3.5-3.5 1.4-1.4 2.1 2.1 4.6-4.6 1.4 1.4-6 6Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 4 5v6c0 5.1 3.4 9.8 8 11 4.6-1.2 8-5.9 8-11V5l-8-3Zm-1.1 14.2-3.5-3.5 1.4-1.4 2.1 2.1 4.6-4.6 1.4 1.4-6 6Z'/%3E%3C/svg%3E");
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: contain;
  mask-position: center;
  mask-repeat: no-repeat;
  mask-size: contain;
}

.rules-hero-copy {
  min-width: 0;
}

.rules-hero h1 {
  margin: 0 0 4px;
  color: var(--text-primary);
  font-size: 1.05rem;
  line-height: 1.2;
}

.rules-hero p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.45;
}

.rule-list {
  display: grid;
  padding: 4px 16px;
}

.rule-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.rule-card:last-child {
  border-bottom: 0;
}

.rule-number {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px !important;
  background: var(--bg-card-hover);
  color: #2563eb;
  font-size: 0.78rem;
  font-weight: 900;
}

.rule-card h2 {
  margin: 0 0 4px;
  color: var(--text-primary);
  font-size: 0.88rem;
  line-height: 1.35;
}

.rule-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.55;
}

.rules-moderation-note {
  margin: 12px 4px 0;
  color: var(--text-secondary);
  font-size: 0.74rem;
  line-height: 1.5;
}

.rules-bottom-nav {
  display: none;
}

@media (max-width: 860px) {
  .site-nav .nav-links.open {
    gap: 6px;
  }

  .site-nav .nav-links.open > .rules-header-tab {
    width: 100%;
    min-height: 46px;
    padding: 8px 12px;
    flex-direction: row;
    justify-content: flex-start;
    gap: 12px;
    border: 1px solid var(--border-normal);
    font-size: 0.82rem;
  }
}

@media (max-width: 680px) {
  body {
    padding-bottom: calc(74px + var(--safe-area-bottom));
  }

  .page-wrap.rules-page {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: calc(var(--nav-height) + 16px) 12px 34px;
  }

  .rules-app-brand-logo {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .rules-app-brand-copy strong {
    font-size: 1rem;
  }

  .rules-app-brand-copy small {
    max-width: 205px;
    font-size: 0.58rem;
  }

  .rules-bottom-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1100;
    height: calc(74px + var(--safe-area-bottom));
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 8px 8px calc(10px + var(--safe-area-bottom));
    background: var(--bg-card);
    border-top: 1px solid var(--border-normal);
    box-shadow: 0 -6px 20px rgba(15, 23, 42, 0.06);
  }

  .rules-bottom-tab {
    height: 100%;
    min-width: 0;
    display: flex;
    flex: 1 1 20%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--text-secondary);
    font-size: 0.68rem;
    font-weight: 500;
    line-height: 1;
  }
}