body {
    background-color: #f7fafc;
}

.payment-container {
    max-width: 650px;
    margin: 2rem auto;
    padding: 2.5rem;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.payment-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.payment-header h1 {
    font-size: 1.875rem;
    color: #1a1f36;
    margin-bottom: 0.75rem;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.payment-header p {
    color: #697386;
    font-size: 1.1rem;
}

.payment-details {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.75rem;
    margin-bottom: 2.5rem;
    border: 1px solid #e5e7eb;
}

.payment-details-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.payment-details-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
}

.payment-details-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.payment-details-item:first-child {
    padding-top: 0;
}

.payment-details-label {
    color: #64748b;
    font-size: 0.9375rem;
    font-weight: 500;
}

.payment-details-value {
    color: #1a1f36;
    font-weight: 500;
    font-size: 0.9375rem;
}

.payment-details-value.highlight {
    color: #0050ff;
    font-weight: 600;
    font-size: 1.125rem;
}

.payment-form {
    margin-top: 2rem;
}

#payment-element {
    margin-bottom: 2rem;
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
}

.payment-button {
    background: #0050ff;
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.payment-button:hover {
    background: #0040cc;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.payment-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.payment-button-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

#payment-message {
    color: #697386;
    font-size: 0.9375rem;
    text-align: center;
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 6px;
}

#payment-message.error {
    color: #dc2626;
    background: #fef2f2;
    border: 1px solid #fee2e2;
}

#payment-message.success {
    color: #059669;
    background: #f0fdf4;
    border: 1px solid #dcfce7;
}

.savings-badge {
    background: #10b981;
    color: white;
    padding: 0.375rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.payment-method-selector {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.payment-method-option {
    flex: 1;
    padding: 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.payment-method-option:hover {
    border-color: #0050ff;
}

.payment-method-option.selected {
    border-color: #0050ff;
    background: rgba(0, 80, 255, 0.05);
}

.payment-method-option img {
    height: 24px;
    margin-bottom: 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .payment-container {
        margin: 1rem;
        padding: 1.5rem;
    }

    .payment-header h1 {
        font-size: 1.5rem;
    }

    .payment-header p {
        font-size: 1rem;
    }

    .payment-details {
        padding: 1.25rem;
    }

    .payment-details-item {
        padding: 0.75rem 0;
    }
}