.grammar-page {
  width: min(1280px, calc(100% - 44px));
}

.grammar-hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(8, 22, 42, 0.96), rgba(3, 12, 25, 0.96));
  box-shadow: var(--shadow);
}

.grammar-hero h1 {
  margin: 8px 0 10px;
  font-size: 2.55rem;
}

.grammar-hero p:not(.eyebrow) {
  max-width: 720px;
  color: var(--soft);
  font-weight: 850;
}

.grammar-controls {
  min-width: 280px;
  display: grid;
  gap: 10px;
}

.grammar-controls select {
  min-height: 42px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  font-weight: 950;
}

.grammar-level-tabs {
  background: rgba(255, 255, 255, 0.06);
}

.grammar-spellbook {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.grammar-spellbook span,
.grammar-formula {
  padding: 9px 11px;
  color: #d8ecff;
  border: 1px solid rgba(190, 225, 255, 0.18);
  border-radius: 8px;
  background: rgba(190, 225, 255, 0.08);
  font-weight: 900;
}

.grammar-formula.large {
  display: inline-block;
  margin-top: 6px;
  color: var(--gold);
  border-color: rgba(246, 211, 117, 0.32);
  background: rgba(246, 211, 117, 0.08);
}

.grammar-category-list {
  display: grid;
  gap: 22px;
}

.section-heading.compact {
  margin: 18px 0 10px;
}

.section-heading.compact h2 {
  margin: 4px 0;
  font-size: 1.6rem;
}

.grammar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.grammar-card,
.grammar-detail {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(9, 22, 40, 0.96), rgba(5, 16, 31, 0.96));
  box-shadow: var(--shadow);
}

.grammar-card {
  min-height: 360px;
  display: grid;
  gap: 12px;
  align-content: space-between;
}

.grammar-card.completed {
  border-color: rgba(117, 228, 193, 0.42);
}

.grammar-card h3 {
  margin: 6px 0 8px;
  font-size: 1.35rem;
}

.grammar-card p,
.grammar-detail p,
.grammar-detail li,
.grammar-card-foot {
  color: var(--soft);
  font-weight: 850;
}

.grammar-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.grammar-detail-slot {
  margin: 16px 0;
}

.grammar-detail {
  display: grid;
  gap: 16px;
}

.grammar-detail-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.grammar-detail-header h2 {
  margin: 6px 0 8px;
  font-size: 2.1rem;
}

.grammar-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.grammar-detail-grid .wide {
  grid-column: span 2;
}

.grammar-conjugation {
  display: grid;
  gap: 10px;
}

.grammar-conjugation h3 {
  margin: 0;
}

.grammar-conjugation dl,
.grammar-forge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.grammar-conjugation dl div,
.grammar-forge-grid div,
.mistake-list div {
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.grammar-conjugation dt,
.grammar-conjugation dd {
  margin: 0;
  color: var(--soft);
  font-weight: 900;
}

.grammar-conjugation dl div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.grammar-forge-grid strong,
.mistake-list b {
  color: var(--gold);
}

.mistake-list {
  display: grid;
  gap: 8px;
}

.mistake-list p {
  margin: 4px 0;
}

.mistake-list small {
  color: var(--muted);
  font-weight: 850;
}

.grammar-practice {
  display: grid;
  gap: 14px;
}

.grammar-exercise-section {
  display: grid;
  gap: 10px;
}

.grammar-exercise-section h3 {
  margin: 0;
  color: var(--gold);
}

.grammar-complete-panel {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(246, 211, 117, 0.24);
  border-radius: 8px;
  background: rgba(246, 211, 117, 0.07);
}

#grammar-score-status {
  margin: 0;
}

#grammar-score-status.success {
  color: #9ff2d7;
}

#grammar-score-status.needs-review {
  color: #f3b3ac;
}

.grammar-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 1100px) {
  .grammar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grammar-conjugation dl,
  .grammar-forge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .grammar-hero,
  .grammar-detail-header {
    align-items: stretch;
    flex-direction: column;
  }

  .grammar-controls {
    min-width: 0;
  }

  .grammar-grid,
  .grammar-detail-grid,
  .grammar-conjugation dl,
  .grammar-forge-grid {
    grid-template-columns: 1fr;
  }

  .grammar-detail-grid .wide {
    grid-column: span 1;
  }
}