/*
  Styles for the standalone /sudoku-rules page.
  Reuses the CSS variables defined in ../styles.css so it stays visually
  consistent with the rest of the site.
*/

.site-main--rules {
  display: block;
  align-items: initial;
  justify-content: initial;
  padding: 0;
}

.rules-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.rules-page__head {
  margin-bottom: 28px;
}

.rules-page__title {
  margin: 0 0 12px;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.rules-page__intro {
  margin: 0;
  max-width: 720px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-muted);
}

.rules-page__section-title {
  margin: 36px 0 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.rules-page__section-intro {
  margin: 0 0 20px;
  max-width: 720px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ---------- Strategy cards ---------- */

.rules-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.rules-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset,
    0 6px 16px rgba(43, 51, 63, 0.06);
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.rules-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset,
    0 10px 24px rgba(43, 51, 63, 0.08);
  border-color: var(--accent);
}

.rules-card__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.rules-card__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-muted);
  flex: 1;
}

.rules-card__more {
  margin-top: auto;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

@media (max-width: 480px) {
  .rules-page {
    padding: 20px 16px 36px;
  }

  .rules-page__title {
    font-size: 24px;
  }

  .rules-page__section-title {
    font-size: 20px;
  }

  .rules-cards {
    grid-template-columns: 1fr;
  }
}

html:not(.locale-ready) [data-i18n] { opacity: 0; }
html.locale-ready [data-i18n] { opacity: 1; transition: opacity 120ms ease-in; }