/* ==========================================================================
   Japanese Shikhi Components Design (Cards, Modal, Stroke Visualizer, Diff)
   ========================================================================== */

/* --- BADGES --- */
.badge-jlpt {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-n5 { background: rgba(42, 157, 143, 0.15); color: #2A9D8F; border: 1px solid rgba(42, 157, 143, 0.3); }
.badge-n4 { background: rgba(244, 162, 97, 0.15); color: #F4A261; border: 1px solid rgba(244, 162, 97, 0.3); }
.badge-n3 { background: rgba(230, 57, 70, 0.15); color: #E63946; border: 1px solid rgba(230, 57, 70, 0.3); }
.badge-n2 { background: rgba(29, 53, 87, 0.25); color: #60a5fa; border: 1px solid rgba(96, 165, 250, 0.3); }
.badge-n1 { background: rgba(107, 33, 168, 0.2); color: #c084fc; border: 1px solid rgba(192, 132, 252, 0.3); }
.badge-other { background: rgba(255, 255, 255, 0.1); color: var(--text-secondary); border: 1px solid var(--border-color); }

.badge-mini {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* --- KANJI DIRECTORY CARDS --- */
.kanji-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.15rem;
  margin-top: 1.25rem;
}

.kanji-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.kanji-card:hover {
  transform: translateY(-3px);
  background: var(--bg-card-hover);
  border-color: rgba(230, 57, 70, 0.4);
  box-shadow: var(--shadow-md);
}

.card-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.card-strokes {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.card-star-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.15s ease;
  padding: 2px;
}

.card-star-btn:hover, .card-star-btn.bookmarked {
  color: var(--js-amber);
}

.card-glyph-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 95px;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 0.85rem;
  border: 1px solid var(--border-subtle);
}

.card-glyph {
  font-family: var(--font-cjk);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.card-meaning-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-readings-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 0.85rem;
}

.card-reading-chip {
  font-size: 0.72rem;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 500;
}

.card-reading-chip.on {
  background: rgba(96, 165, 250, 0.12);
  color: #60a5fa;
  border: 1px solid rgba(96, 165, 250, 0.2);
}

.card-reading-chip.kun {
  background: rgba(42, 157, 143, 0.12);
  color: #2A9D8F;
  border: 1px solid rgba(42, 157, 143, 0.2);
}

.card-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border-subtle);
}

.card-mastery-indicator {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.status-mastered { color: #2A9D8F; }
.status-learning { color: #F4A261; }
.status-new { color: var(--text-muted); }

.card-audio-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  transition: color 0.15s ease;
  padding: 2px 4px;
}

.card-audio-btn:hover {
  color: var(--js-crimson);
}

/* --- DEEP-DIVE KANJI INSPECTOR MODAL --- */
.modal-wrapper {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(9, 11, 20, 0.8);
  backdrop-filter: blur(8px);
}

.modal-dialog {
  position: relative;
  z-index: 10;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 780px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* Modal Hero Header */
.modal-header-hero {
  padding: 1.5rem 1.75rem 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  background: var(--bg-subtle);
  gap: 1.5rem;
}

.modal-hero-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.hero-glyph-box {
  width: 84px;
  height: 84px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.hero-glyph {
  font-family: var(--font-cjk);
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.hero-badges-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.35rem;
}

.hero-meaning {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.hero-readings-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.reading-pill {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.reading-pill.on { background: rgba(96, 165, 250, 0.15); color: #60a5fa; }
.reading-pill.kun { background: rgba(42, 157, 143, 0.15); color: #2A9D8F; }

.modal-header-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.6rem;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  transition: color 0.15s ease;
}

.modal-close-btn:hover {
  color: var(--js-crimson);
}

.modal-btn-star {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.15s ease;
}

.modal-btn-star.bookmarked {
  color: var(--js-amber);
  border-color: rgba(244, 162, 97, 0.4);
}

/* Modal Tabs Nav */
.modal-nav-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-card);
  padding: 0 1.25rem;
  gap: 0.25rem;
  overflow-x: auto;
}

.modal-tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 0.75rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.modal-tab-btn:hover {
  color: var(--text-primary);
}

.modal-tab-btn.active {
  color: var(--js-crimson);
  border-bottom-color: var(--js-crimson);
}

.modal-body-scroll {
  padding: 1.5rem 1.75rem;
  overflow-y: auto;
  flex: 1;
}

/* --- TAB 1: 60S FORMULA & ETYMOLOGY --- */
.formula-banner {
  background: var(--bg-subtle);
  border-left: 4px solid var(--js-crimson);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1.5rem;
}

.formula-body strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--js-crimson);
  margin-bottom: 0.35rem;
}

.formula-quote {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
}

.etymology-section {
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-subtle);
}

.etymology-section h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.etymology-section p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.soundfamily-card {
  background: rgba(42, 157, 143, 0.08);
  border: 1px solid rgba(42, 157, 143, 0.25);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.soundfamily-card strong {
  color: var(--js-teal);
  font-size: 0.88rem;
}

.soundfamily-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* --- TAB 2: DECOMPOSITION --- */
.radical-primary-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-subtle);
}

.rp-symbol {
  font-family: var(--font-cjk);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--js-crimson);
  line-height: 1;
}

.rp-details h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.rp-details p {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.decomp-subhead {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.components-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.comp-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.9rem;
}

.comp-glyph {
  font-family: var(--font-cjk);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.comp-meta {
  display: flex;
  flex-direction: column;
}

.comp-name {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
}

.comp-meaning {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* --- TAB 3: STROKE VISUALIZER & DRAWING CANVAS --- */
.stroke-view-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stroke-panels-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.stroke-panel-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.panel-header-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  text-align: center;
}

.stroke-svg-box, .drawing-pad-box {
  position: relative;
  width: 200px;
  height: 200px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Traditional 4-quadrant calligraphy grid */
.grid-guides-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: 
    linear-gradient(to right, transparent 49.5%, rgba(230, 57, 70, 0.15) 50%, transparent 50.5%),
    linear-gradient(to bottom, transparent 49.5%, rgba(230, 57, 70, 0.15) 50%, transparent 50.5%),
    linear-gradient(45deg, transparent 49.5%, rgba(230, 57, 70, 0.08) 50%, transparent 50.5%),
    linear-gradient(-45deg, transparent 49.5%, rgba(230, 57, 70, 0.08) 50%, transparent 50.5%);
}

.stroke-svg-box svg {
  width: 170px;
  height: 170px;
}

.stroke-svg-box path {
  fill: none;
  stroke: var(--text-primary);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke-dashoffset 0.4s ease;
}

.stroke-svg-box path.active-stroke {
  stroke: var(--js-crimson);
}

.stroke-controls-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1rem;
}

.drawing-actions-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* --- TAB 4: VOCABULARY & SENTENCES --- */
.vocab-items-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.vocab-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
}

.vocab-main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.vocab-word {
  font-family: var(--font-cjk);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.vocab-reading {
  font-size: 0.85rem;
  color: #60a5fa;
  font-weight: 600;
}

.vocab-meaning {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.sentence-item-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 0.75rem;
}

.sentence-jp {
  font-family: var(--font-cjk);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.sentence-furigana {
  font-size: 0.78rem;
  color: #60a5fa;
  margin-bottom: 0.35rem;
}

.sentence-en {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* --- TAB 5: LOOKALIKE DIFF --- */
.diff-viewer-card {
  background: var(--bg-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  border: 1px solid var(--border-color);
}

.diff-header h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.diff-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.diff-characters-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.diff-char-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  min-width: 150px;
}

.diff-glyph {
  font-family: var(--font-cjk);
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.diff-vs-badge {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--js-crimson);
  background: rgba(230, 57, 70, 0.15);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.diff-explanation-box {
  background: var(--bg-card);
  border-left: 3px solid var(--js-amber);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.diff-explanation-box strong {
  color: var(--js-amber);
  font-size: 0.84rem;
  display: block;
  margin-bottom: 0.25rem;
}

.diff-explanation-box p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 600px) {
  .stroke-panels-row {
    grid-template-columns: 1fr;
  }
  .modal-header-hero {
    flex-direction: column;
  }
}