/* Split Payment Simulator - Professional Design */

.split-payment-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 3px solid var(--teal-primary, #4a807c);
}

.page-header h1 {
    font-family: var(--font-display, 'Crimson Pro', serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--teal-deep, #3d6b68);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary, #666);
}

/* Info Banner */
.info-banner {
    background: linear-gradient(135deg, #e8f4f3 0%, #fff 100%);
    padding: 1.5rem;
    border-left: 4px solid var(--teal-primary, #4a807c);
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
}

.banner-icon {
    font-size: 2rem;
}

.banner-content h3 {
    color: var(--teal-deep, #3d6b68);
    margin-bottom: 1rem;
}

.impact-highlight {
    background: #fff8dc;
    padding: 0.75rem;
    border-left: 3px solid #ffa000;
    margin-top: 1rem;
}

/* Models Explainer */
.models-explainer {
    margin-bottom: 3rem;
}

.models-explainer h2 {
    font-family: var(--font-display, 'Crimson Pro', serif);
    font-size: 2rem;
    color: var(--teal-deep, #3d6b68);
    margin-bottom: 1.5rem;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.model-card {
    background: #fff;
    border: 2px solid #e0e0e0;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.model-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.model-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.model-icon {
    font-size: 2rem;
}

.model-header h3 {
    flex: 1;
    color: var(--teal-deep, #3d6b68);
    font-size: 1.25rem;
}

.model-badge {
    background: var(--teal-primary, #4a807c);
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.model-details {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.model-details li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.model-legal {
    color: var(--text-secondary, #666);
    font-size: 0.875rem;
    margin-top: 1rem;
}

/* Simulator Section */
.simulator-section h2 {
    font-family: var(--font-display, 'Crimson Pro', serif);
    font-size: 2rem;
    color: var(--teal-deep, #3d6b68);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary, #666);
    margin-bottom: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary, #1a1a1a);
    margin-bottom: 0.5rem;
}

.field-hint {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-secondary, #666);
    margin-top: 0.25rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--teal-primary, #4a807c);
}

.btn-primary {
    background: var(--teal-primary, #4a807c);
    color: #fff;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--teal-deep, #3d6b68);
    transform: translateY(-1px);
}

/* Loading & Error States */
.loading-spinner,
.error-message {
    display: none;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.loading-spinner.visible,
.error-message.visible {
    display: block;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--teal-primary, #4a807c);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    background: #ffe6e6;
    border-left: 4px solid #d32f2f;
    color: #c62828;
}

/* Results Section */
.results-section {
    display: none;
    background: #fff;
    border: 2px solid var(--teal-primary, #4a807c);
    padding: 2rem;
    margin-top: 3rem;
}

.results-section.visible {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.results-section h2,
.results-section h3 {
    font-family: var(--font-display, 'Crimson Pro', serif);
    color: var(--teal-deep, #3d6b68);
}

.transaction-summary,
.models-comparison,
.cash-flow-impact,
.key-insights {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e0e0e0;
}

.key-insights {
    border-bottom: none;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.comparison-card {
    background: #f8f9fa;
    padding: 1.5rem;
    border-left: 4px solid var(--teal-primary, #4a807c);
}

.comparison-card h4 {
    color: var(--teal-deep, #3d6b68);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-metric {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #e0e0e0;
}

.metric-label {
    color: var(--text-secondary, #666);
    font-size: 0.875rem;
}

.metric-value {
    font-weight: 600;
    color: var(--text-primary, #1a1a1a);
}

.cash-flow-details {
    background: #f8f9fa;
    padding: 1.5rem;
    margin-top: 1rem;
}

.insight-item {
    background: linear-gradient(135deg, #e8f4f3 0%, #fff 100%);
    padding: 1rem;
    margin: 0.75rem 0;
    border-left: 3px solid var(--teal-primary, #4a807c);
}

/* Responsive */
@media (max-width: 768px) {
    .split-payment-page {
        padding: 1rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .models-grid,
    .form-grid,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}