body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    border-radius: 15px;
    border: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px 15px 0 0;
    padding: 20px 30px;
}

.modal-title {
    font-weight: bold;
    font-size: 24px;
}

.plan-info {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
}

.plan-name {
    font-size: 20px;
    font-weight: bold;
    color: #667eea;
}

.plan-amount {
    font-size: 28px;
    font-weight: bold;
    color: #e67e22;
    margin-top: 5px;
}

.form-label {
    font-weight: 600;
    color: #333;
}

.form-control {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    padding: 12px;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.btn-donate {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 8px;
    width: 100%;
    margin-top: 10px;
}

.btn-donate:hover {
    background: linear-gradient(135deg, #5568d3 0%, #653a8b 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: white;
}

.btn-cancel {
    background: #6c757d;
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 8px;
    width: 100%;
}

.btn-cancel:hover {
    background: #5a6268;
}

.required {
    color: red;
}