/**
 * Marginal & Effective Tax Rate Calculator Styles
 *
 * All styles scoped under .mtr-calculator
 * Color scheme: #2563eb (primary), #1e40af (dark)
 *
 * @package Ryan_OConnell_Theme
 * @since 1.0.0
 */

/* ==========================================
   1. CSS Variables
   ========================================== */
.mtr-calculator {
    --mtr-primary: #2563eb;
    --mtr-primary-dark: #1e40af;
    --mtr-primary-light: #dbeafe;
    --mtr-green: #15803d;
    --mtr-green-bg: #dcfce7;
    --mtr-amber: #d97706;
    --mtr-amber-bg: #fef3c7;
    --mtr-red: #ef4444;
}

/* ==========================================
   2. Animations
   ========================================== */
@keyframes mtrAnimateFadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mtr-calculator .col-lg-5 > .card:nth-child(1) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 0ms; }
.mtr-calculator .col-lg-5 > .card:nth-child(2) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 100ms; }
.mtr-calculator .col-lg-5 > .card:nth-child(3) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 200ms; }
.mtr-calculator .col-lg-7 > .card:nth-child(1) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 50ms; }
.mtr-calculator .col-lg-7 > .card:nth-child(2) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 150ms; }
.mtr-calculator .col-lg-7 > .card:nth-child(3) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 250ms; }
.mtr-calculator .col-lg-7 > .card:nth-child(4) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 350ms; }
.mtr-calculator .col-lg-7 > .card:nth-child(5) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 450ms; }
.mtr-calculator .educational-section { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 300ms; }
.mtr-calculator .faq-section .accordion-item:nth-child(1) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 350ms; }
.mtr-calculator .faq-section .accordion-item:nth-child(2) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 400ms; }
.mtr-calculator .faq-section .accordion-item:nth-child(3) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 450ms; }
.mtr-calculator .faq-section .accordion-item:nth-child(4) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 500ms; }
.mtr-calculator .faq-section .accordion-item:nth-child(5) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 550ms; }
.mtr-calculator .faq-section .accordion-item:nth-child(6) { opacity: 0; animation: mtrAnimateFadeInUp 0.6s ease-out forwards; animation-delay: 600ms; }

/* ==========================================
   3. Hero Section
   ========================================== */
.mtr-calculator .hero-section {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: #fff;
    padding: 3rem 0;
    margin-bottom: 0;
}

.mtr-calculator .hero-section .display-4 {
    font-weight: 700;
    font-size: 2.5rem;
}

.mtr-calculator .hero-section .lead {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* ==========================================
   4. Breadcrumb
   ========================================== */
.mtr-calculator .breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 0;
}

.mtr-calculator .breadcrumb-item a {
    color: var(--mtr-primary);
    text-decoration: none;
}

.mtr-calculator .breadcrumb-item a:hover {
    text-decoration: underline;
}

/* ==========================================
   5. Card Styles
   ========================================== */
.mtr-calculator .calculator-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.mtr-calculator .calculator-card .card-header {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: #fff;
    border-bottom: none;
    padding: 1rem 1.25rem;
}

.mtr-calculator .calculator-card .card-header .h5 {
    font-weight: 600;
}

.mtr-calculator .calculator-card .card-body {
    padding: 1.5rem;
}

/* ==========================================
   6. Form Inputs
   ========================================== */
.mtr-calculator .form-control,
.mtr-calculator .form-select {
    border-radius: 8px;
    border: 1px solid #d1d5db;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.mtr-calculator .form-control:focus,
.mtr-calculator .form-select:focus {
    border-color: var(--mtr-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.mtr-calculator .form-label {
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.mtr-calculator .form-text {
    font-size: 0.8rem;
    color: #6b7280;
}

.mtr-calculator .input-group-text {
    background-color: #f3f4f6;
    border-color: #d1d5db;
    font-weight: 500;
    color: #6b7280;
}

/* ==========================================
   7. Tooltips
   ========================================== */
.mtr-calculator .mtr-tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: #e5e7eb;
    color: #6b7280;
    font-size: 0.7rem;
    font-weight: 700;
    cursor: help;
    position: relative;
    vertical-align: middle;
    margin-left: 4px;
    border: none;
    outline: none;
}

.mtr-calculator .mtr-tooltip::after {
    content: attr(aria-label);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 400;
    white-space: normal;
    width: 220px;
    text-align: left;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 1000;
    pointer-events: none;
    line-height: 1.4;
}

.mtr-calculator .mtr-tooltip::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1f2937;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 1001;
}

.mtr-calculator .mtr-tooltip:hover::after,
.mtr-calculator .mtr-tooltip:focus::after,
.mtr-calculator .mtr-tooltip:hover::before,
.mtr-calculator .mtr-tooltip:focus::before {
    opacity: 1;
    visibility: visible;
}

/* ==========================================
   8. Results Display
   ========================================== */
.mtr-calculator .result-display {
    text-align: center;
    padding: 1.5rem 0;
}

.mtr-calculator .result-value-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.mtr-calculator .result-label {
    font-size: 0.9rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.mtr-calculator .result-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--mtr-primary);
    line-height: 1;
}

.mtr-calculator .mtr-effective-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background-color: var(--mtr-primary-light);
    color: var(--mtr-primary-dark);
}

/* ==========================================
   9. Secondary Results
   ========================================== */
.mtr-calculator .secondary-result {
    background: #f9fafb;
    border-radius: 8px;
    padding: 0.75rem;
    text-align: center;
    height: 100%;
}

.mtr-calculator .secondary-label {
    display: block;
    font-size: 0.75rem;
    color: #6b7280;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.mtr-calculator .secondary-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: #1f2937;
}

.mtr-calculator .savings-positive .secondary-value {
    color: var(--mtr-green);
}

.mtr-calculator .savings-positive {
    background: var(--mtr-green-bg);
}

/* ==========================================
   10. Chart Containers
   ========================================== */
.mtr-calculator .chart-container {
    position: relative;
    width: 100%;
}

.mtr-calculator .chart-container.bracket-chart {
    height: 100px;
}

.mtr-calculator .chart-container.comparison-chart {
    height: 200px;
}

.mtr-calculator .chart-container.waterfall-chart {
    height: 220px;
}

/* ==========================================
   11. Formula Display
   ========================================== */
.mtr-calculator .formula-display {
    background: #f8fafc;
    border-radius: 8px;
    padding: 1rem;
}

.mtr-calculator .formula-main {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9rem;
    color: var(--mtr-primary-dark);
    font-weight: 600;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #e5e7eb;
}

.mtr-calculator .mtr-formula-step {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.35rem 0;
    font-size: 0.85rem;
}

.mtr-calculator .mtr-step-label {
    color: #6b7280;
    min-width: 200px;
}

.mtr-calculator .mtr-step-value {
    font-weight: 600;
    color: #1f2937;
    text-align: right;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.mtr-calculator .mtr-formula-divider {
    height: 1px;
    background: #e5e7eb;
    margin: 0.5rem 0;
}

/* ==========================================
   12. Model Assumptions
   ========================================== */
.mtr-calculator .model-assumptions h5 {
    color: var(--mtr-primary-dark);
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.mtr-calculator .model-assumptions ul {
    padding-left: 1.25rem;
}

.mtr-calculator .model-assumptions li {
    margin-bottom: 0.25rem;
}

/* ==========================================
   13. Formula Reference Card
   ========================================== */
.mtr-calculator .formula-reference {
    background: #f8fafc;
    border-radius: 8px;
    padding: 1rem;
}

.mtr-calculator .deduction-table {
    width: 100%;
    font-size: 0.85rem;
}

.mtr-calculator .deduction-table th {
    font-weight: 600;
    color: #374151;
    padding: 0.3rem 0.5rem;
    border-bottom: 1px solid #e5e7eb;
}

.mtr-calculator .deduction-table td {
    padding: 0.3rem 0.5rem;
    color: #6b7280;
}

/* ==========================================
   14. FAQ Accordion
   ========================================== */
.mtr-calculator .faq-accordion .accordion-item {
    border: 1px solid #e5e7eb;
    border-radius: 8px !important;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.mtr-calculator .faq-accordion .accordion-button {
    font-weight: 600;
    color: #374151;
    background: #fff;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
}

.mtr-calculator .faq-accordion .accordion-button:not(.collapsed) {
    background: var(--mtr-primary);
    color: #fff;
    box-shadow: none;
}

.mtr-calculator .faq-accordion .accordion-button:not(.collapsed)::after {
    filter: brightness(0) invert(1);
}

.mtr-calculator .faq-accordion .accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.mtr-calculator .faq-accordion .accordion-body {
    font-size: 0.9rem;
    color: #4b5563;
    line-height: 1.6;
}

/* ==========================================
   15. Disclaimer
   ========================================== */
.mtr-calculator .disclaimer {
    background: #fffbeb;
    border-left: 4px solid var(--mtr-amber);
    border-radius: 8px;
    padding: 1.25rem;
}

.mtr-calculator .disclaimer h5 {
    color: var(--mtr-amber);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.mtr-calculator .disclaimer p {
    font-size: 0.85rem;
    color: #92400e;
    margin-bottom: 0;
    line-height: 1.6;
}

/* ==========================================
   16. Related Calculators
   ========================================== */
.mtr-calculator .related-calc-card {
    display: block;
    text-decoration: none;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.25rem;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    color: inherit;
    height: 100%;
}

.mtr-calculator .related-calc-card:hover {
    transform: translateY(-4px);
    border-color: var(--mtr-primary);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.15);
    text-decoration: none;
    color: inherit;
}

.mtr-calculator .related-calc-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--mtr-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    color: var(--mtr-primary);
    font-size: 1.25rem;
}

.mtr-calculator .related-calc-image {
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.mtr-calculator .related-calc-image img {
    width: 100%;
    height: auto;
}

.mtr-calculator .related-calc-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.mtr-calculator .related-calc-desc {
    font-size: 0.85rem;
    color: #6b7280;
    line-height: 1.5;
}

.mtr-calculator .related-calc-cta {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--mtr-primary);
}

/* ==========================================
   17. Author Badge
   ========================================== */
.mtr-calculator .calculator-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mtr-calculator .author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.mtr-calculator .author-label {
    display: block;
    font-size: 0.75rem;
    color: #6b7280;
}

.mtr-calculator .author-name {
    font-weight: 600;
    color: var(--mtr-primary);
    text-decoration: none;
    font-size: 0.9rem;
}

.mtr-calculator .author-name:hover {
    text-decoration: underline;
}

/* ==========================================
   18. Educational Section
   ========================================== */
.mtr-calculator .edu-section-heading {
    color: var(--mtr-primary-dark);
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.mtr-calculator .edu-section-heading i {
    margin-right: 0.5rem;
}

.mtr-calculator .comparison-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1rem 0;
}

.mtr-calculator .comparison-card {
    border-radius: 12px;
    padding: 1.25rem;
    text-align: center;
}

.mtr-calculator .comparison-card--neutral-left {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
}

.mtr-calculator .comparison-card--neutral-right {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
}

.mtr-calculator .comparison-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
    font-size: 1.25rem;
    color: var(--mtr-primary);
}

.mtr-calculator .comparison-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.mtr-calculator .comparison-desc {
    font-size: 0.85rem;
    color: #4b5563;
    margin-bottom: 0;
}

/* ==========================================
   19. Responsive Design
   ========================================== */
@media (max-width: 991px) {
    .mtr-calculator .hero-section {
        padding: 2rem 0;
    }

    .mtr-calculator .hero-section .display-4 {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    .mtr-calculator .result-value {
        font-size: 2.25rem;
    }

    .mtr-calculator .hero-section .display-4 {
        font-size: 1.75rem;
    }

    .mtr-calculator .hero-section .lead {
        font-size: 1rem;
    }

    .mtr-calculator .mtr-formula-step {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.15rem;
    }

    .mtr-calculator .mtr-step-label {
        min-width: unset;
    }

    .mtr-calculator .mtr-step-value {
        text-align: left;
    }

    .mtr-calculator .comparison-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .mtr-calculator .calculator-card .card-body {
        padding: 1rem;
    }

    .mtr-calculator .result-value {
        font-size: 2rem;
    }

    .mtr-calculator .secondary-value {
        font-size: 0.95rem;
    }

    .mtr-calculator .hero-section {
        padding: 1.5rem 0;
    }

    .mtr-calculator .hero-section .display-4 {
        font-size: 1.5rem;
    }

    .mtr-calculator .chart-container.waterfall-chart {
        height: 180px;
    }

    .mtr-calculator .chart-container.comparison-chart {
        height: 160px;
    }
}

/* ==========================================
   20. Accessibility - Reduced Motion
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    .mtr-calculator .col-lg-5 > .card,
    .mtr-calculator .col-lg-7 > .card,
    .mtr-calculator .educational-section,
    .mtr-calculator .faq-section .accordion-item {
        animation: none !important;
        opacity: 1 !important;
    }

    .mtr-calculator .related-calc-card:hover {
        transform: none;
    }
}