/* Style 1: Modern — Rounded corners, soft shadows, vibrant accents */
.mptso-checkout-wrapper {
    --mptso-primary: #2563eb;
    --mptso-primary-hover: #1d4ed8;
    --mptso-accent: #10b981;
    --mptso-radius: 12px;
}

.mptso-block {
    border-radius: var(--mptso-radius);
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
}

.mptso-block-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0;
}

.mptso-input, .mptso-select, .mptso-textarea {
    border-radius: 8px;
    border: 1.5px solid #e2e8f0;
    background: #f8fafc;
}

.mptso-input:focus, .mptso-select:focus, .mptso-textarea:focus {
    background: #ffffff;
    border-color: var(--mptso-primary);
}

.mptso-carrier-item, .mptso-payment-item {
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.mptso-carrier-item.active, .mptso-payment-item.active {
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
    border-color: var(--mptso-primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}