/* Clean & Accessible Component System */

/* Simple Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-primary);
    color: var(--text-white);
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition);
    font-family: inherit;
    text-decoration: none;
    min-height: 44px;
    white-space: nowrap;
}

.btn:hover:not(:disabled) {
    background-color: var(--accent-primary-hover);
}

.btn:disabled {
    background-color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-secondary {
    background-color: var(--bg-accent);
    color: var(--text-primary);
    border: 2px solid var(--border-medium);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-hover);
    border-color: var(--border-dark);
}

.btn-success {
    background-color: var(--accent-success);
}

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

[data-theme="dark"] .btn-success:hover:not(:disabled) {
    background-color: #10b981;
}

.btn-warning {
    background-color: var(--accent-warning);
}

.btn-warning:hover:not(:disabled) {
    background-color: #d97706;
}

[data-theme="dark"] .btn-warning:hover:not(:disabled) {
    background-color: #f59e0b;
}

.btn-danger {
    background-color: var(--accent-danger);
}

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

[data-theme="dark"] .btn-danger:hover:not(:disabled) {
    background-color: #ef4444;
}

.btn-info {
    background-color: var(--accent-primary);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--text-sm);
    min-height: 36px;
}

/* Clean Card System */
.section-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.section-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--text-xl);
    font-weight: 700;
}

/* FIXED: Better text visibility in section cards */
.section-card p {
    color: var(--text-secondary);
}

[data-theme="dark"] .section-card p {
    color: var(--text-secondary) !important;
}

.result-card {
    background-color: var(--bg-accent);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--accent-primary);
    transition: background-color var(--transition), border-color var(--transition);
}

.result-card h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--text-lg);
    font-weight: 600;
}

/* Simple Checkbox System */
.checkbox-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: background-color var(--transition), border-color var(--transition);
}

.checkbox-item:hover {
    background-color: var(--bg-hover);
}

.checkbox-item input {
    margin-right: var(--spacing-md);
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.checkbox-item label {
    margin: 0;
    cursor: pointer;
    flex: 1;
    font-size: var(--text-base);
    color: var(--text-primary);
    font-weight: 500;
}

/* Clean Word Cards */
.word-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    cursor: pointer;
    position: relative;
    transition: all var(--transition);
    min-height: 100px;
    box-shadow: var(--shadow-sm);
}

.word-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.word-pos {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--accent-primary);
    color: var(--text-white);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.word-card .edit-btn, 
.word-card .delete-btn {
    position: absolute;
    bottom: var(--spacing-sm);
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    font-size: 12px;
    cursor: pointer;
    color: var(--text-white);
    opacity: 0;
    transition: opacity var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.word-card .edit-btn {
    right: 36px;
    background-color: var(--accent-primary);
}

.word-card .delete-btn {
    right: var(--spacing-sm);
    background-color: var(--accent-danger);
}

.word-card:hover .edit-btn,
.word-card:hover .delete-btn {
    opacity: 1;
}

.word-conlang {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
    margin-right: 70px;
    margin-top: 30px;
}

.word-english {
    color: var(--text-secondary);
    font-size: var(--text-base);
    margin-bottom: 30px;
    margin-right: 70px;
}

.word-derived {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    margin-right: 70px;
    font-style: italic;
}

/* Word Grid */
.word-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Simple Phoneme Display */
.phoneme-display {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.phoneme {
    background-color: var(--accent-primary);
    color: var(--text-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--text-sm);
}

/* Bulk Word Selection */
.bulk-word {
    background-color: var(--bg-accent);
    color: var(--text-primary);
    border: 2px solid var(--border-light);
    transition: all var(--transition);
    cursor: pointer;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-base);
    border-radius: var(--radius-md);
    font-weight: 500;
    margin: var(--spacing-xs);
}

.bulk-word:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-primary);
}

.bulk-word.selected {
    background-color: var(--accent-primary);
    color: var(--text-white);
    border-color: var(--accent-primary);
}

/* Clean Statistics - UPDATED */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    width: 100%;
    max-width: 100%;
}

.stat-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    min-width: 0; /* Allows flex shrinking */
    transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--accent-primary);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.2;
}

/* Simple Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--bg-accent);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin: var(--spacing-md) 0;
    transition: background-color var(--transition);
}

.progress-fill {
    height: 100%;
    background-color: var(--accent-primary);
    width: 0%;
    transition: width 0.5s ease;
}

/* Clean Toast Notifications */
.toast {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    z-index: 1000;
    transform: translateX(120%);
    transition: transform 0.3s ease, background-color var(--transition), color var(--transition);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    max-width: calc(100vw - 32px);
    font-size: var(--text-base);
    border-left: 4px solid var(--accent-primary);
    opacity: 0;
    visibility: hidden;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

.toast.error {
    border-left-color: var(--accent-danger);
    background-color: #fef2f2;
    color: #991b1b;
}

[data-theme="dark"] .toast.error {
    background-color: #7f1d1d;
    color: #fecaca;
    border-left-color: var(--accent-danger);
}

.toast.success {
    border-left-color: var(--accent-success);
    background-color: #f0fdf4;
    color: #166534;
}

[data-theme="dark"] .toast.success {
    background-color: #064e3b;
    color: #a7f3d0;
    border-left-color: var(--accent-success);
}

/* Simple Modal System */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

[data-theme="dark"] .modal {
    background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 500px;
    margin: var(--spacing-xl) auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    transition: background-color var(--transition), border-color var(--transition);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
    margin: 0;
    font-size: var(--text-xl);
    color: var(--text-primary);
    font-weight: 700;
}

.modal-close {
    background-color: var(--bg-accent);
    border: 1px solid var(--border-medium);
    font-size: var(--text-lg);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background-color: var(--accent-danger);
    color: var(--text-white);
    border-color: var(--accent-danger);
}

/* Sample Cards */
.sample-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    cursor: pointer;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.sample-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.sample-card h4 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--text-lg);
    font-weight: 700;
}

.sample-details {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
}

.sample-details strong {
    color: var(--text-primary);
    font-weight: 600;
    display: block;
    margin-bottom: var(--spacing-xs);
}

/* Affix Items */
.affix-item {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg) var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--accent-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition), border-color var(--transition);
}

.affix-info {
    flex: 1;
}

.affix-name {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-lg);
}

.affix-details {
    color: var(--text-secondary);
    font-size: var(--text-base);
}

.affix-example {
    background-color: var(--bg-accent);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    font-family: 'Courier New', monospace;
    font-size: var(--text-sm);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

.affix-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-lg);
}

/* Search & Filter */
.search-filter-bar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: background-color var(--transition), border-color var(--transition);
}

.search-box {
    width: 100%;
}

.filter-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--bg-accent);
    border: 1px solid var(--border-light);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    font-weight: 500;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-btn:hover:not(.active) {
    background-color: var(--bg-hover);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

.filter-btn.active {
    background-color: var(--accent-primary);
    color: var(--text-white);
    border-color: var(--accent-primary);
}

/* Corpus Interface */
.sentence-pair-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    margin-bottom: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.sentence-pair-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.sentence-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.sentence-category {
    background-color: var(--accent-primary);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
}

.sentence-actions {
    display: flex;
    gap: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition);
}

.sentence-pair-card:hover .sentence-actions {
    opacity: 1;
}

.sentence-actions .edit-btn,
.sentence-actions .delete-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    font-size: var(--text-sm);
    cursor: pointer;
    color: var(--text-white);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sentence-actions .edit-btn {
    background-color: var(--accent-primary);
}

.sentence-actions .delete-btn {
    background-color: var(--accent-danger);
}

.sentence-english,
.sentence-conlang {
    margin-bottom: var(--spacing-md);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
}

.sentence-conlang strong + span {
    color: var(--accent-primary);
    font-weight: 700;
}

.sentence-info {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-style: italic;
}

/* Analysis Styles */
.morpheme-tag {
    background-color: var(--accent-primary);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin: var(--spacing-xs);
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
}

.confidence-high {
    background-color: var(--accent-success);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.confidence-medium {
    background-color: var(--accent-warning);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.confidence-low {
    background-color: var(--accent-danger);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
}

/* Form Grid Layouts */
.form-grid-2,
.form-grid-3,
.form-grid-4,
.form-grid-5 {
    display: grid;
    gap: var(--spacing-lg);
    align-items: end;
}

.form-grid-2 {
    grid-template-columns: 1fr 1fr;
}

.form-grid-3 {
    grid-template-columns: 1fr 1fr auto;
}

.form-grid-4 {
    grid-template-columns: 1fr 1fr 1fr auto;
}

.form-grid-5 {
    grid-template-columns: 1fr 1fr 1fr 1fr auto;
}

/* Word Builder */
.word-builder {
    background-color: var(--bg-accent);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--accent-primary);
    transition: background-color var(--transition), border-color var(--transition);
}

.word-builder h4 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--text-lg);
    font-weight: 700;
}

.word-builder p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
}

/* FIXED: Word builder text visibility in dark mode */
[data-theme="dark"] .word-builder p {
    color: var(--text-secondary) !important;
}

/* Generated Word Display */
.generated-word-display {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition), border-color var(--transition);
}

.generated-word {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
}

/* Feature Highlight */
.feature-highlight {
    background-color: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    font-size: var(--text-base);
    line-height: 1.6;
    color: #92400e;
    transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

[data-theme="dark"] .feature-highlight {
    background-color: #451a03;
    border-color: #92400e;
    color: #fed7aa;
}

.feature-highlight strong {
    color: #78350f;
    font-weight: 700;
}

[data-theme="dark"] .feature-highlight strong {
    color: #fdba74;
}

/* FIXED: Comprehensive dark mode text fixes */
[data-theme="dark"] p,
[data-theme="dark"] li,
[data-theme="dark"] span:not(.phoneme):not(.morpheme-tag):not(.confidence-high):not(.confidence-medium):not(.confidence-low):not(.sentence-category):not(.word-pos),
[data-theme="dark"] div:not(.btn):not(.form-control):not(.phoneme):not(.morpheme-tag):not(.stat-number) {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: var(--text-primary) !important;
}

[data-theme="dark"] strong {
    color: var(--text-primary) !important;
}

[data-theme="dark"] small {
    color: var(--text-muted) !important;
}

/* FIXED: Override any hardcoded light colors in dark mode */
[data-theme="dark"] *[style*="color: #666"],
[data-theme="dark"] *[style*="color:#666"],
[data-theme="dark"] *[style*="color: #999"],
[data-theme="dark"] *[style*="color:#999"],
[data-theme="dark"] *[style*="color: #888"],
[data-theme="dark"] *[style*="color:#888"],
[data-theme="dark"] *[style*="color: #555"],
[data-theme="dark"] *[style*="color:#555"] {
    color: var(--text-secondary) !important;
}

/* FIXED: Activity text visibility */
[data-theme="dark"] .activity-item,
[data-theme="dark"] .activity-item * {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .activity-item strong {
    color: var(--text-primary) !important;
}

/* Checkbox Grid */
.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* Missing Word Tags */
.missing-word-tag {
    background-color: var(--accent-warning);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin: var(--spacing-xs);
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
}

/* Analysis Sections */
.morphology-breakdown {
    background-color: var(--bg-accent);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-light);
    transition: background-color var(--transition), border-color var(--transition);
}

.grammar-analysis-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.word-alignment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: var(--spacing-md);
    font-size: var(--text-base);
    align-items: center;
}

.analysis-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition), border-color var(--transition);
}

.analysis-section h5 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--text-lg);
    font-weight: 700;
}

/* Translation Suggestions */
.translation-suggestion {
    background-color: var(--bg-accent);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition), border-color var(--transition);
}

.quality-meter {
    flex: 1;
    height: 8px;
    background-color: var(--bg-accent);
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: background-color var(--transition), border-color var(--transition);
}

.quality-fill {
    height: 100%;
    background-color: var(--accent-success);
    transition: width 0.5s ease;
}

.translation-quality {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

/* Button Groups */
.button-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.button-group .btn {
    flex: 0 0 auto;
}

/* Loading States */
.loading-shimmer {
    position: relative;
    overflow: hidden;
}

.loading-shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

[data-theme="dark"] .loading-shimmer::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Interactive States */
.interactive {
    transition: all var(--transition);
}

.interactive:hover {
    transform: translateY(-1px);
}

.interactive:active {
    transform: translateY(0);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

.text-primary {
    color: var(--text-primary);
}

.text-secondary {
    color: var(--text-secondary);
}

.text-muted {
    color: var(--text-muted);
}

.text-accent {
    color: var(--accent-primary);
}

.bg-primary {
    background-color: var(--bg-primary);
}

.bg-secondary {
    background-color: var(--bg-secondary);
}

.bg-accent {
    background-color: var(--bg-accent);
}

.border-light {
    border-color: var(--border-light);
}

.border-medium {
    border-color: var(--border-medium);
}

.rounded-sm {
    border-radius: var(--radius-sm);
}

.rounded-md {
    border-radius: var(--radius-md);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.shadow-sm {
    box-shadow: var(--shadow-sm);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }
.p-2xl { padding: var(--spacing-2xl); }

/* Responsive Design */
@media (max-width: 639px) {
    .form-grid-2,
    .form-grid-3,
    .form-grid-4,
    .form-grid-5 {
        grid-template-columns: 1fr;
    }
    
    .word-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .checkbox-grid {
        grid-template-columns: 1fr;
    }
    
    .search-filter-bar {
        flex-direction: column;
    }
    
    .word-alignment-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .sentence-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .filter-buttons {
        justify-content: center;
    }
    
    .affix-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .affix-actions {
        margin-left: 0;
        align-self: stretch;
        justify-content: flex-end;
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    /* Mobile edit/delete buttons - make them just emoji */
    .word-card .edit-btn,
    .word-card .delete-btn {
        width: 32px;
        height: 32px;
        font-size: 14px;
        opacity: 1; /* Always visible on mobile */
    }
    
    .sentence-actions .edit-btn,
    .sentence-actions .delete-btn {
        opacity: 1; /* Always visible on mobile */
    }
}

@media (min-width: 640px) {
    .word-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        justify-content: center;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .search-filter-bar {
        flex-direction: row;
        align-items: center;
    }
    
    .search-box {
        flex: 1;
        max-width: 300px;
    }
    
    .checkbox-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grammar-analysis-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .form-grid-3 {
        grid-template-columns: 1fr 1fr 1fr;
    }
    
    .form-grid-4 {
        grid-template-columns: 1fr 1fr 1fr 1fr;
    }
    
    .form-grid-5 {
        grid-template-columns: 1fr 1fr 1fr 1fr auto;
    }
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-xl);
        max-width: 900px;
    }
}

@media (min-width: 1024px) {
    .word-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1000px;
        gap: var(--spacing-2xl);
    }
    
    .checkbox-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grammar-analysis-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .section-card {
        padding: var(--spacing-2xl);
    }
}

/* Print Styles */
@media print {
    .btn,
    .modal,
    .toast,
    .sentence-actions,
    .word-card .edit-btn,
    .word-card .delete-btn,
    .affix-actions,
    .dark-mode-toggle {
        display: none !important;
    }
    
    .section-card,
    .result-card,
    .word-card,
    .sentence-pair-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .word-card,
    .sentence-pair-card {
        margin-bottom: var(--spacing-md);
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-lg);
    }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-shimmer::before {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .form-control {
        border-width: 2px;
    }
    
    .word-card,
    .section-card,
    .result-card,
    .stat-card {
        border-width: 2px;
    }
    
    .stats-grid {
        gap: var(--spacing-lg);
    }
}