* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
}

.payment-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    color: #333;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.subtitle {
    color: #666;
    font-size: 14px;
}

.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select {
    width: 100%;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 14px 16px;
    font-size: 16px;
    color: #333;
    outline: none;
    transition: border-color 0.3s;
    background-color: white;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="tel"]:focus,
.form-group select:focus {
    border-color: #667eea;
}

.form-group input[type="text"]::placeholder,
.form-group input[type="email"]::placeholder,
.form-group input[type="tel"]::placeholder {
    color: #aab7c4;
}

.amount-input {
    display: flex;
    align-items: center;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0 16px;
    transition: border-color 0.3s;
}

.amount-input:focus-within {
    border-color: #667eea;
}

.currency {
    color: #666;
    font-size: 18px;
    font-weight: 600;
    margin-right: 8px;
}

.amount-input input {
    flex: 1;
    border: none;
    outline: none;
    padding: 14px 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.payment-method-option {
    position: relative;
}

.payment-method-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.method-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    background: white;
}

.method-label:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.payment-method-option input[type="radio"]:checked + .method-label {
    border-color: #667eea;
    background: #f0f2ff;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.method-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.method-label span:last-child {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

#card-element-container {
    margin-top: 20px;
}

#card-element {
    padding: 14px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: white;
    transition: border-color 0.3s;
}

#card-element:focus-within {
    border-color: #667eea;
}

#card-errors {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 8px;
    min-height: 20px;
}

.bnpl-info {
    background: #f0f2ff;
    border: 1px solid #667eea;
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
}

.bnpl-info p {
    color: #667eea;
    font-size: 14px;
    line-height: 1.5;
}

.submit-button {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
}

.submit-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.submit-button:active:not(:disabled) {
    transform: translateY(0);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.payment-status {
    margin-top: 20px;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
}

.payment-status.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.payment-status.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.payment-status.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Stripe Element styling */
.StripeElement {
    height: 40px;
    padding: 10px 12px;
}

.StripeElement--focus {
    border-color: #667eea;
}

.StripeElement--invalid {
    border-color: #e74c3c;
}

.StripeElement--complete {
    border-color: #27ae60;
}

@media (max-width: 600px) {
    .payment-card {
        padding: 24px;
    }

    .payment-methods {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-row .form-group {
        margin-bottom: 24px;
    }

    .form-row .form-group:last-child {
        margin-bottom: 0;
    }
}