/* ── GRAMMAR A–Z PAGE ───────────────────────── */

.grammar-hero .grammar-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
}

.grammar-az-nav-section {
  padding-top: 8px;
  padding-bottom: 20px;
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, .04);
}

.grammar-az-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.grammar-az-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--teal-dk);
  background: var(--teal-lt);
  border: 1.5px solid rgba(61, 122, 112, .25);
  border-radius: 10px;
  text-decoration: none;
  transition: background .15s, border-color .15s, transform .15s;
}

.grammar-az-link:hover {
  background: rgba(61, 122, 112, .18);
  border-color: var(--teal);
  transform: translateY(-1px);
}

.grammar-topic-section {
  scroll-margin-top: 80px;
}

.grammar-topic-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 16px 20px;
  margin-bottom: 20px;
}

.grammar-topic-letter {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dk) 100%);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(61, 122, 112, .3);
}

.grammar-topic-titles {
  flex: 1;
  min-width: 200px;
}

.grammar-topic-title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  color: var(--fg);
  line-height: 1.25;
  margin: 4px 0 0;
}

.grammar-pdf-btn {
  flex-shrink: 0;
  font-size: .82rem;
  padding: 8px 16px;
}

.grammar-topic-desc {
  font-size: 1.02rem;
  line-height: 1.75;
  max-width: 820px;
  margin-bottom: 28px;
  color: var(--fg);
}

.grammar-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.grammar-info-box {
  border-radius: 16px;
  padding: 22px 20px;
  border: 1.5px solid var(--border);
  background: var(--card);
}

.grammar-info-box--tips {
  border-left: 4px solid var(--teal);
}

.grammar-info-box--advice {
  border-left: 4px solid #5a8a7a;
}

.grammar-info-box--practice {
  border-left: 4px solid var(--teal-dk);
  background: rgba(61, 122, 112, .04);
}

.grammar-info-heading {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--teal-dk);
  margin: 0 0 12px;
}

.grammar-info-list {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: .88rem;
  line-height: 1.6;
  color: var(--fg);
}

.grammar-practice-text {
  margin: 0;
  font-size: .88rem;
  line-height: 1.65;
  color: var(--fg);
}

.grammar-subheading {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
  margin: 0 0 16px;
  color: var(--fg);
}

.grammar-examples {
  margin-bottom: 36px;
}

.grammar-exercises-block {
  margin-top: 8px;
}

.grammar-exercises-lead {
  font-size: .92rem;
  color: var(--fg-muted);
  margin: -8px 0 24px;
  line-height: 1.6;
}

@media (max-width: 900px) {
  .grammar-info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .grammar-topic-header {
    flex-direction: column;
  }

  .grammar-pdf-btn {
    align-self: flex-start;
  }

  .grammar-az-link {
    width: 32px;
    height: 32px;
    font-size: .75rem;
  }
}

/* ── HUB TOPIC CARDS ────────────────────────── */

.grammar-topic-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grammar-topic-card .grammar-topic-letter--sm {
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  border-radius: 10px;
  margin-bottom: 8px;
}

.grammar-topic-level-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 16px;
}

.grammar-level-badge-link {
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}

.grammar-level-badge-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
}

/* ── TOPIC LEVEL CARDS ──────────────────────── */

.grammar-level-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 8px;
}

.grammar-level-card {
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 22px 20px;
  background: var(--card);
}

.grammar-level-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.grammar-level-card-count {
  font-size: .82rem;
  color: var(--fg-muted);
}

.grammar-level-card-preview {
  margin: 0 0 18px;
  padding-left: 18px;
  font-size: .85rem;
  line-height: 1.55;
  color: var(--fg-muted);
}

.grammar-level-card-more {
  list-style: none;
  margin-left: -18px;
  font-style: italic;
}

.grammar-level-heading-link {
  text-decoration: none;
}

.grammar-level-heading-link:hover .exercise-level {
  filter: brightness(1.05);
}

.grammar-zadanie-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.grammar-zadanie-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  text-decoration: none;
  color: inherit;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}

.grammar-zadanie-card:hover {
  border-color: var(--teal);
  box-shadow: 0 4px 20px rgba(61, 122, 112, .12);
  transform: translateY(-2px);
}

.grammar-zadanie-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.grammar-zadanie-badge {
  font-size: .75rem;
  color: var(--fg-muted);
}

.grammar-zadanie-title {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0;
  line-height: 1.35;
}

.grammar-zadanie-meta {
  font-size: .82rem;
  color: var(--fg-muted);
  margin: 0;
}

.grammar-zadanie-arrow {
  font-size: .85rem;
  font-weight: 600;
  color: var(--teal-dk);
}

.grammar-zadanie-runner-head {
  margin: 20px 0 28px;
}

.grammar-zadanie-runner-title {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  margin: 12px 0 8px;
}

.grammar-zadanie-runner-meta {
  color: var(--fg-muted);
  margin: 0 0 16px;
}

.grammar-zadanie-print-link {
  font-size: .85rem;
}

.grammar-zadanie-nav {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.grammar-search-section {
  padding-top: 0;
  padding-bottom: 24px;
}

.grammar-search-input {
  width: 100%;
  max-width: 560px;
  padding: 14px 18px;
  font-size: 1rem;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: var(--card);
}

.grammar-search-hint {
  margin-top: 10px;
  font-size: .88rem;
  color: var(--fg-muted);
}

.grammar-search-results {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.grammar-search-result-link {
  padding: 8px 14px;
  border-radius: 10px;
  background: var(--teal-lt);
  color: var(--teal-dk);
  text-decoration: none;
  font-size: .88rem;
}

/* ── SEARCH ─────────────────────────────────── */

.grammar-search-section {
  padding-top: 0;
  padding-bottom: 8px;
}

.grammar-search-section--compact {
  padding-bottom: 0;
}

.grammar-search-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--teal-dk);
  margin-bottom: 8px;
}

.grammar-search-input {
  width: 100%;
  max-width: 560px;
  display: block;
  padding: 14px 18px 14px 44px;
  font-family: inherit;
  font-size: 1rem;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  background: var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%233d7a70' stroke-width='2'%3E%3Ccircle cx='8' cy='8' r='6'/%3E%3Cpath d='M13 13l4 4'/%3E%3C/svg%3E") 16px center no-repeat;
  color: var(--fg);
  transition: border-color .15s, box-shadow .15s;
}

.grammar-search-input:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(61, 122, 112, .15);
}

.grammar-search-hint {
  margin: 10px 0 0;
  font-size: .85rem;
  color: var(--fg-muted);
}

.grammar-search-results {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.grammar-search-result {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  text-decoration: none;
  color: var(--fg);
  transition: border-color .15s, background .15s;
}

.grammar-search-result:hover {
  border-color: var(--teal);
  background: rgba(61, 122, 112, .04);
}

.grammar-search-result-badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--teal-lt);
  color: var(--teal-dk);
}

.grammar-search-result-title {
  font-weight: 600;
  font-size: .95rem;
}

.grammar-search-result-sub {
  font-size: .85rem;
  color: var(--fg-muted);
  flex: 1 1 100%;
}

.grammar-search-empty {
  color: var(--fg-muted);
  font-size: .92rem;
  margin: 0;
}

.grammar-search-hidden {
  display: none !important;
}

/* ── ZADANIE CARDS ──────────────────────────── */

.grammar-zadanie-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.grammar-zadanie-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  text-decoration: none;
  color: var(--fg);
  min-height: 100%;
  transition: border-color .18s, box-shadow .18s, transform .18s;
}

.grammar-zadanie-card:hover {
  border-color: var(--teal);
  box-shadow: 0 6px 24px rgba(61, 122, 112, .12);
  transform: translateY(-2px);
}

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

.grammar-zadanie-level {
  font-size: .72rem !important;
}

.grammar-zadanie-badge {
  font-size: .72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(61, 122, 112, .1);
  color: var(--teal-dk);
}

.grammar-zadanie-title {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.35;
  margin: 0;
}

.grammar-zadanie-meta {
  margin: 0;
  font-size: .8rem;
  color: var(--fg-muted);
  letter-spacing: .02em;
}

.grammar-zadanie-arrow {
  margin-top: auto;
  font-size: .85rem;
  font-weight: 600;
  color: var(--teal);
}

/* ── ZADANIE RUNNER ─────────────────────────── */

.grammar-zadanie-runner {
  max-width: 720px;
}

.grammar-zadanie-page-title {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 500;
  margin: 12px 0 20px;
  line-height: 1.3;
}

.grammar-zadanie-progress {
  font-size: .82rem;
  font-weight: 600;
  color: var(--fg-muted);
  margin-left: auto;
}

.grammar-zadanie-tips {
  margin-bottom: 20px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(61, 122, 112, .06);
  border: 1px solid rgba(61, 122, 112, .15);
  font-size: .88rem;
}

.grammar-zadanie-tips summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--teal-dk);
}

.grammar-zadanie-tips ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.grammar-item-container {
  min-height: 120px;
}

.grammar-item-actions {
  margin-top: 20px;
}

.grammar-zadanie-footer {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.grammar-section-heading {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.grammar-section-lead {
  margin-bottom: 32px;
  color: var(--fg-muted);
}

.grammar-chunks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.grammar-chunk-card {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(61, 122, 112, .2);
  background: var(--bg-alt, #f8faf9);
}

.grammar-chunk-en {
  font-weight: 600;
  color: var(--teal-dk);
  margin: 0 0 4px;
}

.grammar-chunk-pl {
  margin: 0;
  font-size: .88rem;
  color: var(--fg-muted);
}

.exercise-textarea {
  min-height: 96px;
  resize: vertical;
  width: 100%;
}

.grammar-writing-rubric,
.grammar-writing-min,
.grammar-chunk-context,
.grammar-order-hint {
  font-size: .9rem;
  color: var(--fg-muted);
  margin: 0 0 12px;
}

.grammar-order-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.grammar-order-word {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1.5px solid rgba(61, 122, 112, .3);
  background: #fff;
  font-weight: 600;
  cursor: pointer;
}

.grammar-order-word.is-used {
  opacity: .35;
  cursor: default;
}

.grammar-order-answer {
  min-height: 2.5rem;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(61, 122, 112, .06);
  margin-bottom: 12px;
  font-weight: 600;
}

.grammar-match-grid {
  display: grid;
  gap: 10px;
  margin-bottom: 8px;
}

.grammar-match-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.grammar-match-left {
  min-width: 100px;
  font-weight: 600;
}

.grammar-match-select {
  flex: 1;
  min-width: 140px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.grammar-crosslink-section {
  text-align: center;
}

.grammar-crosslink-inner {
  max-width: 640px;
}

.grammar-inline-link {
  color: var(--teal);
  border-bottom: 1px solid rgba(61, 122, 112, .35);
  text-decoration: none;
}

.grammar-topic-desc--flush {
  margin-bottom: 0;
}

.grammar-topic-header--spaced {
  margin-top: 16px;
}