/* Payment Gateway Whitelabel Styles */
:root {
    --pf-primary-color: #007bff;
    --pf-success-color: #28a745;
    --pf-danger-color: #dc3545;
    --pf-warning-color: #ffc107;
    --pf-light-color: #f8f9fa;
    --pf-dark-color: #343a40;
    --pf-border-radius: 0.5rem;
    --pf-box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --pf-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Full Page Layout */
.payment-gateway-page {
    background: linear-gradient(135deg, var(--pf-light-color) 0%, #ffffff 100%);
    min-height: 100vh;
    font-family: var(--pf-font-family);
    margin: 0;
    padding: 0;
}

.payment-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

/* Payment Card */
.payment-card {
    border: none;
    border-radius: var(--pf-border-radius);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    background: white;
    overflow: hidden;
}

.payment-header {
    background: var(--pf-primary-color);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.payment-header h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.payment-header p {
    margin: 0;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Amount Display */
.payment-amount {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--pf-success-color);
    text-align: center;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--pf-light-color);
    border-radius: var(--pf-border-radius);
    border: 2px solid #e9ecef;
}

/* Form Sections */
.form-section {
    margin-bottom: 2rem;
}

.form-section h5 {
    color: var(--pf-primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form Controls */
.form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--pf-border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--pf-primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    outline: none;
}

.form-control.is-invalid {
    border-color: var(--pf-danger-color);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-control.is-valid {
    border-color: var(--pf-success-color);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.invalid-feedback {
    display: block;
    color: var(--pf-danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Input Groups */
.input-group-text {
    background: var(--pf-light-color);
    border: 2px solid #e9ecef;
    border-right: none;
    color: var(--pf-dark-color);
    font-weight: 600;
}

.input-group .form-control {
    border-left: none;
}

.input-group:focus-within .input-group-text {
    border-color: var(--pf-primary-color);
}

/* Payment Button */
.btn-pay {
    background: var(--pf-primary-color);
    border: none;
    border-radius: var(--pf-border-radius);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    width: 100%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-pay:hover:not(:disabled) {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.btn-pay:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Security Notice */
.security-notice {
    background: var(--pf-light-color);
    border: 1px solid #dee2e6;
    border-radius: var(--pf-border-radius);
    padding: 1rem;
    margin-top: 1.5rem;
    text-align: center;
    color: #6c757d;
}

/* Alert Messages */
.alert {
    border: none;
    border-radius: var(--pf-border-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-success {
    background-color: #d1e7dd;
    color: #0f5132;
}

.alert-info {
    background-color: #d1ecf1;
    color: #055160;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    flex-direction: column;
}

.loading-overlay.show {
    display: flex;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
    border: 0.25em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: white;
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 576px) {
    .payment-container {
        padding: 1rem;
    }
    
    .payment-card {
        margin: 0;
    }
    
    .payment-amount {
        font-size: 1.5rem;
        padding: 1rem;
    }
    
    .payment-header {
        padding: 1rem;
    }
    
    .payment-header h3 {
        font-size: 1.25rem;
    }
}

/* Card Number Formatting */
.card-input {
    font-family: 'Courier New', monospace;
    letter-spacing: 0.1rem;
}

/* Terms Checkbox */
.form-check {
    padding: 1rem;
    background: var(--pf-light-color);
    border-radius: var(--pf-border-radius);
    margin-bottom: 1.5rem;
}

.form-check-input {
    margin-right: 0.75rem;
}

.form-check-label {
    font-size: 0.9rem;
    color: #6c757d;
}

/* Customization Classes for Merchants */
.pf-theme-blue {
    --pf-primary-color: #007bff;
}

.pf-theme-green {
    --pf-primary-color: #28a745;
}

.pf-theme-purple {
    --pf-primary-color: #6f42c1;
}

.pf-theme-orange {
    --pf-primary-color: #fd7e14;
}

.pf-theme-red {
    --pf-primary-color: #dc3545;
}

/* Logo Placeholder */
.merchant-logo {
    max-height: 40px;
    max-width: 150px;
    margin-bottom: 0.5rem;
}

/* Shake Animation for Errors */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.6s ease-in-out;
}

/* ===== FORM LAYOUT VARIANTS ===== */

/* Compact Layout */
.payment-form-compact .form-section {
    margin-bottom: 1rem;
}

.payment-form-compact .form-section h5 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.payment-form-compact .mb-3 {
    margin-bottom: 0.75rem !important;
}

.payment-form-compact .payment-amount {
    font-size: 1.5rem;
    padding: 1rem;
    margin: 1rem 0;
}

.payment-form-compact .card-body {
    padding: 1.5rem !important;
}

.payment-form-compact .row .col-md-6 .mb-3 {
    margin-bottom: 0.5rem !important;
}

/* Horizontal Layout */
.payment-form-horizontal .form-sections-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1rem;
}

.payment-form-horizontal .payment-amount {
    grid-column: 1 / -1;
    margin-bottom: 1.5rem;
}

.payment-form-horizontal .form-section {
    margin-bottom: 0;
}

.payment-form-horizontal .btn-pay {
    grid-column: 1 / -1;
    margin-top: 1.5rem;
}

.payment-form-horizontal .security-notice {
    grid-column: 1 / -1;
}

/* Responsive adjustments for horizontal layout */
@media (max-width: 768px) {
    .payment-form-horizontal .form-sections-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Vertical Layout (Default) - No additional styles needed */
.payment-form-vertical {
    /* This is the default layout, no changes needed */
}

/* Tabbed Layout */
.payment-form-tabs .payment-tabs {
    border-bottom: 2px solid #e9ecef;
    margin-bottom: 2rem;
}

.payment-form-tabs .payment-tabs .nav-link {
    border: none;
    border-bottom: 3px solid transparent;
    color: #6c757d;
    font-weight: 500;
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
    background: none;
}

.payment-form-tabs .payment-tabs .nav-link:hover {
    color: var(--pf-primary-color);
    border-bottom-color: rgba(var(--pf-primary-color-rgb, 0, 123, 255), 0.3);
}

.payment-form-tabs .payment-tabs .nav-link.active {
    color: var(--pf-primary-color);
    border-bottom-color: var(--pf-primary-color);
    background: none;
}

.payment-form-tabs .payment-tabs .nav-link .tab-icon {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.payment-form-tabs .payment-tabs .nav-link .tab-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #e9ecef;
    color: #6c757d;
    font-size: 0.875rem;
    font-weight: 600;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.payment-form-tabs .payment-tabs .nav-link.active .tab-number {
    background: var(--pf-primary-color);
    color: white;
}

.payment-form-tabs .payment-tabs .nav-link.completed .tab-number {
    background: var(--pf-success-color);
    color: white;
}

.payment-form-tabs .payment-tabs .nav-link.completed .tab-number::before {
    content: "✓";
    font-size: 0.75rem;
}

.payment-form-tabs .tab-content {
    min-height: 300px;
}

.payment-form-tabs .tab-pane {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.payment-form-tabs .tab-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e9ecef;
}

.payment-form-tabs .btn-tab-nav {
    padding: 0.75rem 1.5rem;
    border-radius: var(--pf-border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
}

.payment-form-tabs .btn-tab-prev {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    color: #6c757d;
}

.payment-form-tabs .btn-tab-prev:hover {
    background: #e9ecef;
    color: #495057;
}

.payment-form-tabs .btn-tab-next {
    background: var(--pf-primary-color);
    border: 1px solid var(--pf-primary-color);
    color: white;
}

.payment-form-tabs .btn-tab-next:hover {
    background: #0056b3;
    border-color: #0056b3;
}

.payment-form-tabs .btn-tab-next:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Tab validation states */
.payment-form-tabs .tab-pane .form-control.is-invalid {
    border-color: var(--pf-error-color);
}

.payment-form-tabs .tab-pane .form-control.is-valid {
    border-color: var(--pf-success-color);
}

/* Progress indicator for tabs */
.payment-form-tabs .tab-progress {
    height: 4px;
    background: #e9ecef;
    border-radius: 2px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.payment-form-tabs .tab-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--pf-primary-color), var(--pf-success-color));
    border-radius: 2px;
    transition: width 0.3s ease;
    width: 0%;
}

/* Layout-specific card adjustments */
.payment-form-compact .payment-card {
    max-width: 450px;
}

.payment-form-horizontal .payment-card {
    max-width: 700px;
}

.payment-form-vertical .payment-card {
    max-width: 500px;
}

.payment-form-tabs .payment-card {
    max-width: 600px;
}

/* Form layout indicators for debugging */
.payment-form-compact::before,
.payment-form-horizontal::before,
.payment-form-vertical::before {
    content: attr(data-layout);
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 0.75rem;
    color: #6c757d;
    display: none; /* Hidden by default, can be enabled for debugging */
}