/**
 * Concept Mapping Mode Styles
 */

.mapping-layout {
    display: grid;
    grid-template-columns: 200px 1fr 240px;
    gap: 1.5rem;
    padding: 1.5rem;
    min-height: calc(100vh - 200px);
}

.concept-sidebar {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

.concept-sidebar h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

.mapping-filter label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0;
    font-size: 0.8125rem;
    cursor: pointer;
}

.mapping-filter input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--navigator-primary, #8B5CF6);
}

.stats-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light, #E5E7EB);
}

.stats-list {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.25rem 0.5rem;
    margin: 0;
    font-size: 0.875rem;
}

.stats-list dt {
    color: var(--text-secondary, #6B7280);
}

.stats-list dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
}

/* Main Mapping Area */
.concept-main {
    background: white;
    border-radius: 8px;
    border: 1px solid var(--border-light, #E5E7EB);
    overflow: hidden;
}

.mapping-header {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--paper-sand, #FDFBF7);
    border-bottom: 1px solid var(--border-light, #E5E7EB);
}

.vocab-column h2 {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary, #1F2937);
}

.source-vocab h2 {
    text-align: left;
}

.target-vocab h2 {
    text-align: right;
}

.mapping-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-tertiary, #9CA3AF);
}

#mapping-container {
    padding: 1rem;
    position: relative;
    overflow-x: auto;
}

.mapping-rows {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mapping-row {
    display: grid;
    grid-template-columns: 1fr 100px 1fr;
    gap: 0.5rem;
    align-items: start;
}

.source-concept,
.target-concept {
    padding: 0.5rem 0.75rem;
    background: var(--paper-sand, #FDFBF7);
    border-radius: 4px;
    border: 1px solid var(--border-light, #E5E7EB);
}

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

.target-concept {
    text-align: left;
    cursor: pointer;
    transition: all 0.15s ease;
}

.target-concept:hover {
    border-color: var(--navigator-primary, #8B5CF6);
}

.target-concept.selected {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--navigator-primary, #8B5CF6);
}

.target-concepts {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.concept-label {
    font-size: 0.875rem;
}

.vocab-badge {
    font-size: 0.625rem;
    text-transform: uppercase;
    padding: 0.125rem 0.375rem;
    background: var(--border-light, #E5E7EB);
    border-radius: 3px;
    margin-left: 0.5rem;
    color: var(--text-secondary, #6B7280);
}

/* Mapping Lines */
.mapping-lines {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    align-items: center;
    justify-content: center;
}

.mapping-line {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0.25rem;
}

.match-type-badge {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
    transition: all 0.15s ease;
}

.match-type-badge.exactMatch {
    background: #10B981;
    color: white;
}

.match-type-badge.closeMatch {
    background: #3B82F6;
    color: white;
}

.match-type-badge.broadMatch {
    background: #F59E0B;
    color: white;
}

.match-type-badge.narrowMatch {
    background: #8B5CF6;
    color: white;
}

.match-type-badge.relatedMatch {
    background: #6B7280;
    color: white;
}

.mapping-line.selected .match-type-badge {
    transform: scale(1.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* SVG Connection Lines */
.connection-svg {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}

.connection-line {
    fill: none;
    stroke-width: 2;
    opacity: 0.6;
}

.connection-line.exact {
    stroke: #10B981;
}

.connection-line.close {
    stroke: #3B82F6;
}

.connection-line.broad {
    stroke: #F59E0B;
}

.connection-line.narrow {
    stroke: #8B5CF6;
}

.connection-line.related {
    stroke: #6B7280;
    stroke-dasharray: 4 2;
}

.no-mappings {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary, #6B7280);
}

/* Context Panel */
.concept-context {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#mapping-detail {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

#mapping-detail.hidden {
    display: none;
}

#mapping-detail h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

#mapping-detail dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 0.75rem;
    margin: 0;
    font-size: 0.8125rem;
}

#mapping-detail dt {
    color: var(--text-secondary, #6B7280);
}

#mapping-detail dd {
    margin: 0;
    word-break: break-word;
}

/* Legend */
.match-legend {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

.match-legend h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

.legend-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.8125rem;
}

.legend-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
}

.match-line {
    width: 24px;
    height: 3px;
    border-radius: 2px;
}

.match-line.exact {
    background: #10B981;
}

.match-line.close {
    background: #3B82F6;
}

.match-line.broad {
    background: #F59E0B;
}

.match-line.narrow {
    background: #8B5CF6;
}

.match-line.related {
    background: repeating-linear-gradient(
        90deg,
        #6B7280 0px,
        #6B7280 4px,
        transparent 4px,
        transparent 6px
    );
}

.keyboard-hints {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

.keyboard-hints h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

.hint-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 0.5rem;
    margin: 0;
    font-size: 0.75rem;
}

.hint-list dt {
    font-family: var(--font-mono, monospace);
    background: white;
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    border: 1px solid var(--border-light, #E5E7EB);
}

.hint-list dd {
    margin: 0;
    color: var(--text-secondary, #6B7280);
    display: flex;
    align-items: center;
}

/* Responsive */
@media (max-width: 1024px) {
    .mapping-layout {
        grid-template-columns: 1fr;
    }

    .concept-sidebar,
    .concept-context {
        display: none;
    }

    .mapping-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

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

    .mapping-lines {
        flex-direction: row;
        padding: 0.5rem 0;
    }
}