.wpfp-modern-ui {
    max-width: 600px;
    margin: 20px auto;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    position: relative;
}
.wpfp-step h3 {
    margin-top: 0;
    color: #333;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 20px;
}
.wpfp-field {
    margin-bottom: 20px;
}
.wpfp-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}
.wpfp-input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}
.wpfp-input:focus {
    border-color: #007bff;
    outline: none;
}
.wpfp-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    border: 1px solid #e9ecef;
}
.wpfp-notice.info {
    background: #e7f3ff;
    border-left: 4px solid #2196F3;
    padding: 15px;
    color: #0c5460;
    border-radius: 4px;
    margin-bottom: 20px;
}
.wpfp-price-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}
.wpfp-price-row.total {
    border-top: 2px solid #dee2e6;
    padding-top: 10px;
    font-size: 1.2em;
    color: #28a745;
    font-weight: bold;
}
.wpfp-button {
    width: 100%;
    padding: 15px;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 15px;
}
.wpfp-button:hover {
    background: #0056b3;
    transform: translateY(-1px);
}
.wpfp-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}
.wpfp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.wpfp-method-item {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}
.wpfp-method-item:hover {
    border-color: #007bff;
}
.wpfp-method-item input {
    display: none;
}
.wpfp-method-item label {
    cursor: pointer;
    margin: 0;
    display: block;
}
.wpfp-method-item.selected {
    border-color: #007bff;
    background: #e7f1ff;
    box-shadow: 0 0 0 1px #007bff;
}
.wpfp-back-link {
    background: none;
    border: none;
    color: #007bff;
    cursor: pointer;
    padding: 0;
    margin-bottom: 15px;
    font-size: 14px;
}
.wpfp-loader-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(255,255,255,0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    border-radius: 12px;
}
.wpfp-spinner {
    width: 40px; height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
.wpfp-success-card {
    text-align: center;
    padding: 20px;
}
.wpfp-icon-success {
    font-size: 50px;
    color: #28a745;
    margin-bottom: 15px;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }