/* ─── VOCABULARY ───────────────────────────────────────────────────── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.category-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.category-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--c-primary-light);
}
.category-card .cat-icon { font-size: 32px; margin-bottom: 10px; }
.category-card .cat-title { font-weight: 700; font-size: 1rem; margin-bottom: 2px; }
.category-card .cat-subtitle { font-size: 0.85rem; color: var(--c-text-secondary); }
.category-card .cat-count { font-size: 0.8rem; color: var(--c-primary); margin-top: 6px; font-weight: 600; }

.hidden { display: none !important; }

.vocab-category-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.vocab-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.vocab-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.vocab-item:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-sm);
}
.vocab-dutch {
  font-weight: 700;
  font-size: 1.05rem;
}
.vocab-plural {
  font-size: 0.85rem;
  color: var(--c-accent);
  margin-top: 2px;
}
.vocab-plural-label {
  font-weight: 600;
  opacity: 0.7;
}
.vocab-english {
  color: var(--c-text-secondary);
  font-size: 0.95rem;
  font-style: italic;
  text-align: right;
  opacity: 0;
  transition: opacity .25s ease;
}
.vocab-item.revealed .vocab-english { opacity: 1; }
.vocab-item .reveal-hint {
  font-size: 0.75rem;
  color: var(--c-primary);
  font-weight: 500;
}
.vocab-item.revealed .reveal-hint { display: none; }

/* ─── SENTENCES ────────────────────────────────────────────────────── */
.sentences-container { display: flex; flex-direction: column; gap: 16px; }

.sentence-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: var(--transition);
}
.sentence-dutch {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.5;
}
.sentence-input-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.sentence-input {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}
.sentence-input:focus { border-color: var(--c-accent); }
.sentence-input.correct { border-color: var(--c-success); background: var(--c-success-bg); }
.sentence-input.incorrect { border-color: var(--c-error); background: var(--c-error-bg); }

.sentence-feedback {
  font-size: 0.85rem;
  margin-top: 8px;
  font-weight: 600;
  display: none;
}
.sentence-feedback.show { display: block; }
.sentence-feedback.correct { color: var(--c-success); }
.sentence-feedback.incorrect { color: var(--c-error); }

/* ─── STORIES ──────────────────────────────────────────────────────── */
.stories-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.story-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: var(--transition);
}
.story-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--c-primary-light);
}
.story-card .story-level {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.story-level.Beginner { background: #e8f5e9; color: #2e7d32; }
.story-level.Intermediate { background: #fff3e0; color: #e65100; }
.story-level.Advanced { background: #fce4ec; color: #c62828; }
.story-card .story-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.story-card .story-title-en { font-size: 0.9rem; color: var(--c-text-secondary); }

/* Story Reader */
.story-reader-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 4px;
}
.story-reader-subtitle {
  font-size: 1.05rem;
  color: var(--c-text-secondary);
  margin-bottom: 30px;
}

.story-paragraph {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}
.story-paragraph .para-dutch {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 10px;
  font-weight: 500;
}
.story-paragraph .para-english {
  font-size: 0.95rem;
  color: var(--c-text-secondary);
  line-height: 1.6;
  font-style: italic;
  padding-top: 10px;
  border-top: 1px dashed var(--c-border);
  display: none;
}
.story-paragraph .para-english.show { display: block; }
.story-paragraph .toggle-translation {
  background: none;
  border: none;
  color: var(--c-accent);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
  margin-top: 6px;
}
.story-paragraph .toggle-translation:hover { text-decoration: underline; }

.story-questions {
  margin-top: 30px;
  background: #f3f4f8;
  border-radius: var(--radius);
  padding: 24px;
}
.story-questions h4 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--c-text);
}
.question-item {
  margin-bottom: 16px;
}
.question-item:last-child { margin-bottom: 0; }
.question-text {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 8px;
}
.question-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.question-input {
  flex: 1;
  min-width: 200px;
  padding: 8px 12px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}
.question-input:focus { border-color: var(--c-accent); }
.question-input.correct { border-color: var(--c-success); background: var(--c-success-bg); }
.question-input.incorrect { border-color: var(--c-error); background: var(--c-error-bg); }
.question-feedback {
  font-size: 0.8rem;
  margin-top: 4px;
  font-weight: 600;
  display: none;
}
.question-feedback.show { display: block; }
.question-feedback.correct { color: var(--c-success); }
.question-feedback.incorrect { color: var(--c-error); }

/* ─── PRACTICE ─────────────────────────────────────────────────────── */
.practice-settings {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.practice-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--c-text-secondary);
}
.practice-select {
  padding: 8px 14px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  background: var(--c-surface);
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}
.practice-select:focus { border-color: var(--c-accent); }

.practice-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 36px 32px;
  text-align: center;
}
.practice-prompt-label {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  margin-bottom: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.practice-prompt {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.4;
}
.practice-input {
  width: 100%;
  max-width: 500px;
  padding: 14px 18px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 1.05rem;
  text-align: center;
  outline: none;
  transition: var(--transition);
  margin: 0 auto;
  display: block;
}
.practice-input:focus { border-color: var(--c-accent); }
.practice-input.correct { border-color: var(--c-success); background: var(--c-success-bg); }
.practice-input.incorrect { border-color: var(--c-error); background: var(--c-error-bg); }

.practice-feedback {
  margin-top: 14px;
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
}
.practice-feedback.correct {
  color: var(--c-success);
  background: var(--c-success-bg);
}
.practice-feedback.incorrect {
  color: var(--c-error);
  background: var(--c-error-bg);
}

.practice-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
  flex-wrap: wrap;
}
.practice-score {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
  font-size: 1rem;
}
.score-label { color: var(--c-text-secondary); font-weight: 600; }
.score-value { font-weight: 700; color: var(--c-primary); font-size: 1.2rem; }

/* ─── GRAMMAR ──────────────────────────────────────────────────────── */
.grammar-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.grammar-nav-btn {
  padding: 8px 16px;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  background: var(--c-surface);
  color: var(--c-text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.grammar-nav-btn:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.grammar-nav-btn.active {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.grammar-topic {
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.grammar-topic-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.grammar-explanation {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text-secondary);
  margin-bottom: 24px;
}
.grammar-examples h4,
.grammar-rules h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--c-primary);
}
.grammar-example-list { display: flex; flex-direction: column; gap: 10px; }
.grammar-example {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 14px;
  background: var(--c-bg);
  border-radius: 8px;
}
.ge-dutch { font-weight: 700; color: var(--c-primary); }
.ge-arrow { color: var(--c-text-secondary); }
.ge-english { color: var(--c-text); }
.ge-note {
  font-size: 0.82rem;
  color: var(--c-text-secondary);
  font-style: italic;
  margin-left: auto;
}
.grammar-rules { margin-top: 24px; }
.grammar-rule-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.grammar-rule-list li {
  padding: 10px 14px;
  background: var(--c-bg);
  border-left: 3px solid var(--c-primary);
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
  line-height: 1.5;
}
.verb-section { margin-top: 0; }
.grammar-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.verb-filter {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.verb-tables {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 20px;
}
.verb-card {
  background: var(--c-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.verb-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--c-primary);
  color: #fff;
  flex-wrap: wrap;
}
.verb-infinitive { font-size: 1.2rem; font-weight: 700; }
.verb-translation { font-size: 0.95rem; opacity: 0.9; }
.verb-type {
  margin-left: auto;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 600;
  text-transform: uppercase;
}
.verb-type-irregular { background: rgba(255,255,255,0.25); }
.verb-type-regular { background: rgba(46,125,50,0.35); }
.verb-type-modal { background: rgba(21,101,192,0.35); }
.verb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.verb-table th {
  text-align: left;
  padding: 10px 14px;
  background: var(--c-bg);
  font-weight: 600;
  color: var(--c-text-secondary);
  border-bottom: 1px solid var(--c-border);
}
.verb-table td {
  padding: 8px 14px;
  border-bottom: 1px solid var(--c-border);
}
.vt-subject { font-weight: 600; color: var(--c-primary); }
.verb-participle {
  display: flex;
  gap: 24px;
  padding: 12px 18px;
  font-size: 0.9rem;
  color: var(--c-text-secondary);
  background: var(--c-bg);
  flex-wrap: wrap;
}
.verb-participle strong { color: var(--c-text); }