/* ============================================
   SKELETON LOADING — Table Skeleton Row Style
   ============================================ */
.skeleton-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    position: relative;
    overflow: hidden;
}

.skeleton-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255,255,255,0.04) 40%,
        rgba(255,255,255,0.08) 50%,
        rgba(255,255,255,0.04) 60%,
        transparent 100%);
    background-size: 200% 100%;
    animation: skeletonShimmer 1.8s ease-in-out infinite;
}

@keyframes skeletonShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   LANGUAGE FEATURES (UI/UX Enhancements)
   ============================================ */

/* ?? Sidebar: Top Languages (#2) ?? */
.sidebar-lang-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
}

.sidebar-lang-title {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 6px 14px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.sidebar-lang-title i {
    font-size: 14px;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
    color: var(--warning);
}

.sidebar-lang-title span {
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity var(--duration) var(--ease),
                transform var(--duration) var(--ease);
}

.sidebar:hover .sidebar-lang-title span {
    opacity: 1;
    transform: translateX(0);
}

.sidebar-lang-item i {
    color: var(--warning) !important;
}

.sidebar-lang-count {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: auto;
    background: var(--surface-overlay);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* ?? Language Page: Color-coded rows (#3) ?? */
tr.lang-volume-high td,
.lang-card.lang-volume-high {
    border-left: 3px solid var(--success);
}

tr.lang-volume-medium td {
    border-left: 3px solid var(--brand);
}

tr.lang-volume-low td,
.lang-card.lang-volume-low {
    border-left: 3px solid var(--warning);
}

tr.lang-volume-high {
    background: var(--success-muted);
}

tr.lang-volume-low {
    background: var(--warning-muted);
}

/* ?? Language Alert Banner (#4) ?? */
.lang-alert-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--warning-muted);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: var(--radius-md);
    color: var(--warning);
    font-size: 13px;
    margin-bottom: 16px;
    line-height: 1.5;
}

.lang-alert-banner i {
    font-size: 18px;
    flex-shrink: 0;
}

/* ?? Language Search Bar (#11) ?? */
.lang-search-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    transition: border-color var(--duration-fast) var(--ease),
                box-shadow var(--duration-fast) var(--ease);
}

.lang-search-bar:focus-within {
    border-color: var(--brand);
    box-shadow: var(--ring-brand);
}

.lang-search-icon {
    color: var(--text-muted);
    font-size: 14px;
    flex-shrink: 0;
}

.lang-search-bar input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

.lang-search-bar input::placeholder {
    color: var(--text-muted);
}

.lang-search-clear {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast) var(--ease),
                background var(--duration-fast) var(--ease);
}

.lang-search-clear:hover {
    color: var(--danger);
    background: var(--danger-muted);
}

/* ?? Progress Bar (#7) ?? */
.lang-progress-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-progress-bar {
    flex: 1;
    height: 6px;
    background: var(--surface-overlay);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.lang-progress-fill {
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--brand-gradient);
    transition: width 0.6s var(--ease);
}

.lang-progress-label {
    font-size: 11px;
    color: var(--text-muted);
    min-width: 38px;
    text-align: right;
}

/* ?? Grid/Card View (#14) ?? */
.lang-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.lang-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: transform var(--duration-fast) var(--ease-spring),
                box-shadow var(--duration-fast) var(--ease),
                border-color var(--duration-fast) var(--ease);
}

.lang-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-strong);
}

.lang-card.lang-volume-high {
    border-left: 4px solid var(--success);
}

.lang-card.lang-volume-medium {
    border-left: 4px solid var(--brand);
}

.lang-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.lang-card-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.lang-card-status {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-card-status.status-active {
    background: var(--success-muted);
    color: var(--success);
}

.lang-card-status.status-inactive {
    background: var(--danger-muted);
    color: var(--danger);
}

.lang-card-wordcount {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.lang-card-wordcount-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.lang-card .lang-progress-wrap {
    margin-bottom: 12px;
}

.lang-card-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.lang-card-meta i {
    margin-right: 4px;
}

.lang-card-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.lang-card-actions button {
    font-size: 12px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid var(--border-default);
    background: var(--surface-overlay);
    color: var(--text-secondary);
    transition: all var(--duration-fast) var(--ease);
}

.lang-card-actions button:hover {
    background: var(--brand-muted);
    color: var(--brand);
    border-color: var(--brand);
}

/* ?? View Toggle Button ?? */
.lang-view-toggle {
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    transition: all var(--duration-fast) var(--ease);
}

.lang-view-toggle:hover {
    background: var(--brand-muted);
    color: var(--brand);
    border-color: var(--brand);
}

/* ?? Go-to and Compare buttons (#13, #6) ?? */
.lang-goto-btn,
.lang-compare-btn {
    background: none;
    border: 1px solid var(--border-default);
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    transition: all var(--duration-fast) var(--ease);
}

.lang-goto-btn:hover {
    background: var(--brand-muted);
    color: var(--brand);
    border-color: var(--brand);
}

.lang-compare-btn:hover,
.lang-compare-btn.compare-selected {
    background: var(--info-muted);
    color: var(--info);
    border-color: var(--info);
}

/* ?? Compare Modal (#6) ?? */
.lang-compare-modal {
    max-width: 600px;
}

.lang-compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.lang-compare-card {
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 16px;
}

.lang-compare-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-align: center;
}

.lang-compare-stat {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 13px;
}

.lang-compare-stat:last-child {
    border-bottom: none;
}

.lang-compare-stat-label {
    color: var(--text-muted);
}

.lang-compare-stat-value {
    color: var(--text-primary);
    font-weight: 600;
}

.lang-compare-diff {
    text-align: center;
    padding: 12px;
    background: var(--brand-muted);
    border-radius: var(--radius-md);
    color: var(--brand);
    font-size: 14px;
    margin-bottom: 12px;
}

.lang-compare-diff i {
    margin-right: 6px;
}

/* ?? Dashboard: Active Languages Card (#10) ?? */
.card-lang-summary .card-sublabel,
.card .card-sublabel {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ?? Dictionary: Language Suggestion (#8) ?? */
.lang-suggestion {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--info-muted);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    color: var(--info);
    font-size: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.lang-suggestion i {
    font-size: 16px;
    color: var(--warning);
}

.lang-suggestion-btn {
    margin-left: auto;
    background: var(--info);
    color: #fff;
    border: none;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: opacity var(--duration-fast) var(--ease);
}

.lang-suggestion-btn:hover {
    opacity: 0.85;
}

/* ?? Knowledge Graph: Language Badge (#15) ?? */
.graph-lang-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--brand-muted);
    border: 1px solid var(--border-interactive);
    border-radius: var(--radius-full);
    color: var(--brand);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.graph-lang-badge i {
    font-size: 13px;
}