.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    transition: border-color 0.2s;
    cursor: pointer;
    position: relative;
}
.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--primary-color);
    background: #f1f5f9;
}
.drop-zone input[type="file"] {
    display: none;
}
.drop-text {
    color: var(--secondary-color);
    pointer-events: none;
    display: block;
    margin-bottom: 5px;
    font-size: 0.85rem;
}
.drop-text button {
    pointer-events: auto;
    margin-left: 5px;
    padding: 4px 12px;
    font-size: 0.75rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
}
.drop-text button:hover {
    background: #f1f5f9;
    border-color: var(--primary-color);
}

/* Result Viewer Styles */
.result-row {
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
    display: grid;
    grid-template-columns: 60px 1fr 1fr 100px 80px 90px 90px 80px;
    gap: 10px;
    font-size: 0.9rem;
    align-items: center;
    min-width: 780px;
}
.result-header {
    font-weight: 700;
    background: #f8fafc;
    border-bottom: 2px solid var(--border-color);
}
.result-details {
    grid-column: 1 / -1;
    background: #f1f5f9;
    padding: 10px;
    margin-top: 5px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.85rem;
}
.status-badge {
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}
.status-success { background: #dcfce7; color: #166534; }
.status-error { background: #fee2e2; color: #991b1b; }

.chart-container {
    position: relative;
    height: 250px;
    width: 100%;
}