/**
 * Trail Result Modal Styles
 *
 * Modal for displaying Trend algorithm validation results
 * with comprehensive visualizations and metrics
 *
 * @since 1.0.0
 * @see DESIGN_44 - Trail Result Visualization Design
 */

/* CSS Variables */
:root {
    /* Error type colors */
    --trail-color-tp: #00C853;     /* True Positive - Green */
    --trail-color-tn: #2196F3;     /* True Negative - Blue */
    --trail-color-fp: #FF5252;     /* False Positive - Red */
    --trail-color-fn: #FF9800;     /* False Negative - Orange */

    /* Evaluation level colors */
    --trail-color-excellent: #00C853;  /* >80% */
    --trail-color-good: #FFC107;       /* 60-80% */
    --trail-color-poor: #FF5252;       /* <60% */

    /* Card styles */
    --trail-card-padding: 20px;
    --trail-card-radius: 8px;
    --trail-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);

    /* Modal dimensions */
    --trail-modal-width: 90vw;
    --trail-modal-max-width: 1400px;
    --trail-modal-height: 90vh;
}

/* Modal Overlay */
.trail-result-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-overlay);
    display: none;
}

/* Modal Container */
.trail-result-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: var(--trail-modal-width);
    max-width: var(--trail-modal-max-width);
    height: var(--trail-modal-height);
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: var(--z-modal);
    display: none;
    flex-direction: column;
    animation: fadeInScale 0.3s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Modal Header */
.trail-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 2px solid #e0e0e0;
    flex-shrink: 0;
}

.trail-result-title h2 {
    margin: 0 0 8px 0;
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.trail-result-subtitle {
    font-size: 14px;
    color: #666;
}

.trail-result-subtitle .separator {
    margin: 0 8px;
    color: #ccc;
}

.trail-result-close-btn {
    background: none;
    border: none;
    font-size: 32px;
    line-height: 1;
    color: #666;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.trail-result-close-btn:hover {
    background: #f5f5f5;
    color: #333;
}

/* Modal Content */
.trail-result-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* Component 1: Metrics Cards */
.trail-metrics-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.metric-card {
    background: #ffffff;
    border-radius: var(--trail-card-radius);
    padding: var(--trail-card-padding);
    box-shadow: var(--trail-card-shadow);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.metric-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
    font-weight: 500;
}

.metric-value {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 12px;
    line-height: 1;
}

.metric-bar {
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}

.metric-bar-fill {
    height: 100%;
    background: var(--trail-color-excellent);
    transition: width 0.5s ease;
    border-radius: 3px;
}

/* Color coding for metric bars */
.metric-bar-fill.excellent {
    background: var(--trail-color-excellent);
}

.metric-bar-fill.good {
    background: var(--trail-color-good);
}

.metric-bar-fill.poor {
    background: var(--trail-color-poor);
}

/* Recommendation Card */
.recommendation-card .metric-stars {
    font-size: 24px;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.recommendation-card .star {
    color: #ccc;
    transition: color 0.3s ease;
}

.recommendation-card .star.filled {
    color: #FFC107;
}

.metric-text {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

/* Component 2: Main Chart Container */
.trail-main-chart-container {
    background: #ffffff;
    border-radius: var(--trail-card-radius);
    box-shadow: var(--trail-card-shadow);
    padding: 16px;
    margin-bottom: 24px;
}

.trail-main-chart {
    width: 100%;
    height: 500px;
}

/* Component 3 & 4: Bottom Row */
.trail-bottom-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.trail-confusion-matrix-container,
.trail-error-analysis-container {
    background: #ffffff;
    border-radius: var(--trail-card-radius);
    box-shadow: var(--trail-card-shadow);
    padding: 16px;
}

.trail-confusion-matrix,
.trail-error-analysis {
    width: 100%;
    height: 400px;
}

/* Modal Footer */
.trail-result-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid #e0e0e0;
    flex-shrink: 0;
}

.trail-export-btn,
.trail-close-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.trail-export-btn {
    background: #2196F3;
    color: white;
}

.trail-export-btn:hover {
    background: #1976D2;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(33, 150, 243, 0.3);
}

.trail-close-btn {
    background: #757575;
    color: white;
}

.trail-close-btn:hover {
    background: #616161;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .trail-metrics-cards {
        grid-template-columns: repeat(3, 1fr);
    }

    .trail-bottom-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --trail-modal-width: 95vw;
        --trail-modal-height: 95vh;
    }

    .trail-result-modal {
        border-radius: 8px;
    }

    .trail-result-header {
        padding: 16px;
    }

    .trail-result-title h2 {
        font-size: 20px;
    }

    .trail-result-subtitle {
        font-size: 12px;
    }

    .trail-result-content {
        padding: 16px;
    }

    .trail-metrics-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .metric-value {
        font-size: 24px;
    }

    .trail-main-chart {
        height: 350px;
    }

    .trail-confusion-matrix,
    .trail-error-analysis {
        height: 300px;
    }

    .trail-result-footer {
        padding: 12px 16px;
        flex-wrap: wrap;
    }

    .trail-export-btn,
    .trail-close-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .trail-metrics-cards {
        grid-template-columns: 1fr;
    }

    .metric-card {
        padding: 16px;
    }

    .trail-result-subtitle .separator {
        display: none;
    }

    .trail-result-subtitle span:not(.separator) {
        display: block;
        margin-bottom: 4px;
    }
}

/* Scrollbar Styling */
.trail-result-content::-webkit-scrollbar {
    width: 8px;
}

.trail-result-content::-webkit-scrollbar-track {
    background: #f5f5f5;
    border-radius: 4px;
}

.trail-result-content::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
}

.trail-result-content::-webkit-scrollbar-thumb:hover {
    background: #999;
}

/* Loading State (for future use) */
.trail-result-modal.loading {
    pointer-events: none;
    opacity: 0.6;
}

.trail-result-modal.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #2196F3;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}