:root {
    --primary-color: #007bff;
    --primary-light: #e6f2ff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #212529;
    --text-light-color: #495057;
    --card-bg: #ffffff;
    --error-bg: #f8d7da;
    --error-color: #721c24;
    --success-color: #198754;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.five-num-summary-calculator {
    font-family: var(--font-family);
    background-color: var(--background-color);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 2rem auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.calculator-header {
    text-align: center;
    margin-bottom: 2rem;
}
.calculator-header h2 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}
.calculator-header p {
    color: var(--secondary-color);
    font-size: 1rem;
}

#summary-form fieldset {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

#summary-form legend {
    font-weight: 600;
    color: var(--primary-color);
    padding: 0 0.5rem;
    margin-left: 1rem;
}

.form-group {
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-light-color);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group textarea {
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.calculate-btn {
    width: 100%;
    padding: 0.85rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.calculate-btn:hover {
    background-color: #0056b3;
}

.tooltip-trigger {
    display: inline-block;
    width: 16px;
    height: 16px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    text-align: center;
    font-size: 12px;
    line-height: 16px;
    cursor: help;
    position: relative;
    top: -1px;
}

.results-wrapper {
    margin-top: 2.5rem;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#result-title {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 2rem;
    word-break: break-all;
}

.results-grid {
    display: grid;
    gap: 1.5rem;
}

.result-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.result-card h4 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 0.75rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
}

.summary-item {
    text-align: center;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 6px;
}

.summary-item .label {
    display: block;
    font-size: 0.85rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.summary-item .value {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.details-grid > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}
.details-grid > div:last-child {
    border-bottom: none;
}
.details-grid .label {
    color: var(--text-light-color);
    font-weight: 500;
}
.details-grid .value {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--success-color);
}


/* Box Plot Styles */
#box-plot-container {
    width: 100%;
    padding: 1rem 0;
}

.boxplot-svg {
    width: 100%;
    height: 120px;
    font-family: var(--font-family);
}
.boxplot-svg .line,
.boxplot-svg .whisker {
    stroke: var(--secondary-color);
    stroke-width: 2;
}
.boxplot-svg .box {
    stroke: var(--primary-color);
    stroke-width: 2;
    fill: var(--primary-light);
}
.boxplot-svg .median {
    stroke: #dc3545;
    stroke-width: 2.5;
}
.boxplot-svg .label {
    fill: var(--text-light-color);
    font-size: 12px;
    text-anchor: middle;
}
.boxplot-svg .label-line {
    stroke: var(--border-color);
    stroke-width: 1;
    stroke-dasharray: 2,2;
}

.error-message {
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--error-bg);
    color: var(--error-color);
    border: 1px solid #f5c6cb;
    border-radius: 6px;
    text-align: center;
}

@media (min-width: 768px) {
    .results-grid {
        grid-template-columns: 1fr 1fr;
    }
    .plot-card {
        grid-column: 1 / -1; /* Span full width */
    }
}

@media (max-width: 576px) {
    .five-num-summary-calculator {
        padding: 1rem;
    }
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .summary-grid, .details-grid {
        grid-template-columns: 1fr;
    }
}






 ul, ol {
            margin: 1rem 0;
            padding-left: 1.5rem;
        }
        
        li {
            margin: 0.5rem 0;
        }
        
        hr {
            border: none;
            height: 1px;
            background-color: #e2e8f0;
            margin: 2rem 0;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        
        th, td {
            border: 1px solid #e2e8f0;
            padding: 0.75rem;
            text-align: left;
        }
        
        th {
            background-color: #f7fafc;
            font-weight: 600;
        }
        
        tr:nth-child(even) {
            background-color: #f7fafc;
        }
        
        strong {
            font-weight: 600;
        }