/* ========================================
   NihonGo! — Kanji Page Styles
   ======================================== */

.kanji-page-content {
    padding: 32px;
}

.kanji-page-header {
    margin-bottom: 24px;
}

.page-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Filters */
.kanji-filters {
    margin-bottom: 24px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.filter-tabs {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--surface);
    border-radius: var(--radius-md);
}

.filter-tab {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.filter-tab.active {
    background: var(--gradient-purple-pink);
    color: white;
}

/* Kanji Grid */
.kanji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

/* Kanji Card */
.kanji-card {
    padding: 20px;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

.kanji-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    border-color: var(--border-hover);
}

.kc-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.kc-serial {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    background: var(--surface);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.kc-level-badge {
    font-size: 0.7rem;
    font-weight: 800;
    color: white;
    padding: 2px 10px;
    border-radius: var(--radius-full);
}

.kc-main-kanji {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 8px;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kc-meaning {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.kc-readings {
    display: flex;
    gap: 6px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.kc-on-tag {
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    background: rgba(236, 72, 153, 0.15);
    color: var(--pink);
    font-weight: 600;
}

.kc-kun-tag {
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
    font-weight: 600;
}

.kc-stroke-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.kc-audio-btn {
    font-size: 1rem;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.kc-audio-btn:hover {
    transform: scale(1.2);
}

/* ─── DETAIL MODAL ─── */
.kanji-detail-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
    padding: 20px;
}

.kanji-detail-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.kanji-detail-modal {
    max-width: 520px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 32px;
    position: relative;
    background: rgba(20, 20, 37, 0.95) !important;
    border: 1px solid var(--border) !important;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.kanji-detail-overlay.open .kanji-detail-modal {
    transform: scale(1);
}

.detail-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--surface);
    color: var(--text-secondary);
    font-size: 1rem;
    z-index: 2;
    transition: all var(--transition-fast);
}

.detail-close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.detail-serial {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
}

.detail-level-badge {
    font-size: 0.8rem;
    font-weight: 800;
    color: white;
    padding: 4px 14px;
    border-radius: var(--radius-full);
}

.detail-kanji-main {
    text-align: center;
    margin-bottom: 12px;
}

.detail-kanji-char {
    font-size: 6rem;
    font-weight: 900;
    line-height: 1.1;
    display: block;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-audio-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: var(--surface);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.detail-audio-btn:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.detail-meaning {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.detail-stroke {
    margin-bottom: 20px;
    padding: 16px;
    background: var(--surface);
    border-radius: var(--radius-md);
}

.detail-stroke h4 {
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.stroke-diagram {
    font-size: 1rem;
    color: var(--text-secondary);
    font-family: monospace;
    letter-spacing: 2px;
}

/* Readings */
.detail-readings {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.reading-section {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
}

.on-reading {
    background: rgba(236, 72, 153, 0.08);
    border: 1px solid rgba(236, 72, 153, 0.15);
}

.kun-reading {
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.15);
}

.reading-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.on-badge {
    background: rgba(236, 72, 153, 0.2);
    color: var(--pink);
}

.kun-badge {
    background: rgba(34, 197, 94, 0.2);
    color: var(--green);
}

.reading-value {
    font-size: 1rem;
    font-weight: 600;
}

/* Examples */
.detail-examples {
    margin-bottom: 20px;
}

.detail-examples h4 {
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.detail-example {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.detail-example:last-child {
    border-bottom: none;
}

.ex-word {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--purple);
}

.ex-word rt {
    font-size: 0.55em;
    color: var(--text-secondary);
    font-weight: 500;
}

.ex-meaning {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Radicals */
.detail-radicals h4 {
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.radicals-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.radical-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.radical-symbol {
    font-size: 1.2rem;
    font-weight: 800;
}

.radical-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .kanji-page-content { padding: 16px; }
    .kanji-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
    .kc-main-kanji { font-size: 2.5rem; }
    .kanji-detail-modal { padding: 20px; max-height: 90vh; }
    .detail-kanji-char { font-size: 4rem; }
    .filter-tabs { flex-wrap: wrap; }
}