body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f8f9fa;
}

.container {
    flex: 1;
}

footer {
    margin-top: auto;
}

.card {
    margin-bottom: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.table {
    margin-bottom: 0;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

.stock-price {
    font-weight: 600;
}

.badge {
    font-size: 0.875rem;
}

.modal-header {
    background-color: #f8f9fa;
}

.card-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.card h3 {
    margin-bottom: 0;
    font-weight: bold;
}

.list-group-item {
    border-left: none;
    border-right: none;
}

.list-group-item:first-child {
    border-top: none;
}

.list-group-item:last-child {
    border-bottom: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.price-update {
    animation: pulse 0.5s ease-in-out;
}