:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-gray: #f8f9fa;
    --dark-gray: #343a40;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dark-gray);
    line-height: 1.6;
}

.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: darken(var(--accent-color), 10%);
    transform: translateY(-1px);
}

.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table-responsive {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
}

.table td small div {
    margin-bottom: 2px;
}

.table td button {
    transition: all 0.2s;
}

.table td button:hover {
    transform: scale(1.05);
}

.quote-ref {
    font-family: monospace;
    font-weight: bold;
    color: #0066cc;
}

.specs-column {
    max-width: 250px;
}

.timestamp-column {
    white-space: nowrap;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* Add animation for table rows */
.table tbody tr {
    animation: fadeIn 0.3s ease-in;
}

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