.method-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius, 8px); /* Use theme variable or fallback */
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--white);
    height: 100%; /* Ensure cards in a row have same height */
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Pushes description down */
}

.method-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 0.25em 0.5em rgba(0, 0, 0, 0.1);
    transform: translateY(-0.2em);
}

.method-card.selected {
    border-color: var(--primary);
    background-color: rgba(44, 62, 80, 0.05); /* --primary with alpha */
    box-shadow: 0 0 0 0.125em var(--primary);
}

.method-icon {
    font-size: 1.8em; /* Slightly larger icon */
    margin-bottom: 0.75em;
    color: var(--primary);
}

.method-title {
    font-weight: 600;
    margin-bottom: 0.5em;
    color: var(--dark);
    font-size: 1em;
}

.method-description {
    font-size: 0.9em;
    color: var(--gray-600);
    flex-grow: 1; /* Allows description to take available space */
    margin-bottom: 0.5em;
}

/* Style for file upload area */
.file-upload-area {
    border: 2px dashed var(--gray-200);
    padding: 1.5em;
    text-align: center;
    border-radius: var(--border-radius, 8px);
    margin-bottom: 1em;
    background-color: var(--gray-100);
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    border-color: var(--secondary);
    background-color: var(--white);
}

.file-upload-title {
    font-weight: 600;
    margin-bottom: 0.25em;
    color: var(--primary);
}

.file-upload-text {
    font-size: 0.95em;
    color: var(--gray-600);
    margin-bottom: 0.75em;
}

/* Hide actual file input */
.file-upload-area input[type="file"] {
    display: none;
}

.file-name-display {
    margin-top: 0.75em;
    font-size: 0.9em;
    color: var(--gray-700);
    font-style: italic;
}

/* Metrics card adjustments */
.metric-card .metric-value {
    font-size: 1.2em; /* Slightly smaller */
}

.metric-card .metric-subtitle {
    font-size: 0.85em; /* Smaller */
    color: var(--gray-600);
    margin-bottom: 0.5em; /* Add space before next value */
}

.metric-card .metric-trend {
    font-size: 0.9em;
    margin-top: 0.25em;
    font-weight: 600;
}

.metric-trend.trend-up {
    color: var(--success-text); /* Use text color from theme */
}

.metric-trend.trend-down {
    color: var(--danger-text); /* Use text color from theme */
}

.metric-card .metric-value-after { /* Specific class for 'after' value */
    color: var(--success-text); /* Green for improvement */
    font-weight: 700;
}

/* Legend styles */
.chart-legend {
    display: flex;
    flex-wrap: wrap; /* Allow wrapping on small screens */
    justify-content: center;
    padding: 0.75em 0 0 0; /* Padding above */
    gap: 1em; /* Space between items */
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.9em;
    color: var(--gray-700);
}

.legend-color {
    width: 0.75em;
    height: 0.75em;
    border-radius: 0.25em; /* Square or circle */
    margin-right: 0.4em;
    display: inline-block;
}