.btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s ease-in-out;
}

.btn-primary {
    background-color: #3b82f6;
    color: white;
}

.btn-secondary {
    background-color: #64748b;
    color: white;
}

.btn-danger {
    background-color: #dc2626;
    color: white;
}

.btn:hover {
    opacity: 0.85;
}