/**
 * Transformer Generation Demo Styles
 * Visual styles for step-by-step generation visualization
 */

/* Demo Container */
.demo-block-transformer {
    margin: 3rem 0;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.demo-block-transformer h3 {
    margin-top: 0;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.demo-block-transformer p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

/* Input Section */
.transformer-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.95);
    margin-bottom: 1rem;
    box-sizing: border-box;
}

.transformer-input:focus {
    outline: none;
    border-color: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

.transformer-run-btn {
    padding: 1rem 2rem;
    background: white;
    color: #667eea;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.transformer-run-btn:hover:not(:disabled) {
    background: #f9fafb;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.transformer-run-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Status */
.transformer-status {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    font-weight: 500;
    font-size: 0.95rem;
}

.transformer-status.loading {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-left: 4px solid #fbbf24;
}

.transformer-status.ready {
    background: rgba(16, 185, 129, 0.2);
    color: white;
    border-left: 4px solid #10b981;
}

.transformer-status.success {
    background: rgba(16, 185, 129, 0.2);
    color: white;
    border-left: 4px solid #10b981;
}

.transformer-status.error {
    background: rgba(239, 68, 68, 0.2);
    color: white;
    border-left: 4px solid #ef4444;
}

/* Result Container */
.transformer-result {
    margin-top: 1.5rem;
}

.transformer-visualization {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.transformer-visualization h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.viz-intro {
    color: #6b7280;
    margin-bottom: 2rem;
    font-size: 1rem;
}

/* Generation Steps */
.generation-step {
    margin-bottom: 2rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.generation-step:hover {
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.1);
}

.generation-step.highlighted {
    border-color: #10b981;
    background: #ecfdf5;
}

.step-header {
    background: linear-gradient(90deg, #f3f4f6 0%, #e5e7eb 100%);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.generation-step.highlighted .step-header {
    background: linear-gradient(90deg, #d1fae5 0%, #a7f3d0 100%);
}

.step-badge {
    background: #667eea;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.generation-step.highlighted .step-badge {
    background: #10b981;
}

.step-header h4 {
    margin: 0;
    color: #1f2937;
    font-size: 1.1rem;
}

.step-body {
    padding: 1.5rem;
}

.step-body > p {
    color: #4b5563;
    margin-bottom: 1rem;
}

.step-note {
    background: #eff6ff;
    border-left: 3px solid #3b82f6;
    padding: 0.75rem 1rem;
    margin-top: 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #1e40af;
}

.formula {
    background: #f9fafb;
    padding: 1rem;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    color: #1f2937;
    margin: 0.5rem 0;
    line-height: 1.8;
}

/* Token List */
.token-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.token-item {
    background: #f3f4f6;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 2px solid #e5e7eb;
    text-align: center;
    min-width: 80px;
}

.token-text {
    font-weight: 600;
    color: #1f2937;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.token-id {
    font-size: 0.8rem;
    color: #6b7280;
}

/* Embedding Visualization */
.embedding-viz {
    margin-top: 1rem;
}

.embedding-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem;
    background: #f9fafb;
    margin-bottom: 0.5rem;
    border-radius: 4px;
}

.emb-label {
    font-weight: 600;
    color: #667eea;
    min-width: 80px;
}

.emb-vector {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: #4b5563;
}

/* Attention Matrix */
.attention-substeps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.substep {
    background: #f9fafb;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.substep strong {
    color: #1f2937;
    display: block;
    margin-bottom: 0.5rem;
}

.attention-matrix {
    margin-top: 1rem;
    overflow-x: auto;
}

.matrix-labels {
    display: flex;
    gap: 4px;
    margin-bottom: 4px;
    padding-left: 60px;
}

.matrix-labels .label {
    flex: 1;
    min-width: 60px;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: #667eea;
}

.matrix-grid {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.matrix-row {
    display: flex;
    gap: 4px;
}

.matrix-cell {
    flex: 1;
    min-width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    cursor: help;
    transition: transform 0.2s ease;
}

.matrix-cell:hover {
    transform: scale(1.1);
    z-index: 10;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.cell-value {
    font-size: 0.75rem;
    font-weight: 600;
    color: #1f2937;
}

/* Predictions */
.predictions {
    margin-top: 1.5rem;
}

.predictions h5 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.prediction-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: #f9fafb;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    border: 2px solid #e5e7eb;
}

.prediction-item.rank-1 {
    background: linear-gradient(90deg, #fef3c7 0%, #fde68a 100%);
    border-color: #f59e0b;
}

.pred-rank {
    font-weight: 700;
    color: #6b7280;
    min-width: 30px;
}

.prediction-item.rank-1 .pred-rank {
    color: #f59e0b;
}

.pred-word {
    font-weight: 600;
    color: #1f2937;
    min-width: 100px;
}

.pred-prob-bar {
    flex: 1;
    height: 20px;
    background: #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
}

.prob-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.5s ease;
}

.prediction-item.rank-1 .prob-fill {
    background: linear-gradient(90deg, #f59e0b 0%, #d97706 100%);
}

.pred-prob {
    font-weight: 600;
    color: #667eea;
    min-width: 60px;
    text-align: right;
}

.prediction-item.rank-1 .pred-prob {
    color: #f59e0b;
}

/* Prediction Result */
.prediction-result {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    color: white;
}

.predicted-word {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fbbf24;
}

.result-sentence {
    font-size: 1.2rem;
    margin-top: 0.5rem;
}

/* Summary */
.generation-summary {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #f0fdf4;
    border-radius: 8px;
    border-left: 4px solid #10b981;
}

.generation-summary h4 {
    color: #166534;
    margin-bottom: 1rem;
}

.generation-summary ol {
    color: #166534;
    line-height: 1.8;
}

.generation-summary li {
    margin-bottom: 0.5rem;
}

.generation-summary strong {
    color: #065f46;
}

/* Responsive */
@media (max-width: 768px) {
    .demo-block-transformer {
        padding: 1.5rem;
    }

    .transformer-visualization {
        padding: 1.5rem;
    }

    .step-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .token-list {
        justify-content: center;
    }

    .matrix-cell {
        min-width: 50px;
        height: 50px;
    }

    .cell-value {
        font-size: 0.7rem;
    }

    .prediction-item {
        flex-wrap: wrap;
    }

    .pred-prob-bar {
        width: 100%;
    }
}

/* Error Message */
.error-message {
    background: #fef2f2;
    border: 2px solid #fca5a5;
    color: #991b1b;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
}