/**
 * MOSAIC Calculator - Clean Modern Style
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
    --color-bg: #ffffff;
    --color-surface: #f8fafc;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --color-accent: #2563eb;
    --color-accent-light: #3b82f6;
    --color-gold: #d97706;
    --color-success: #059669;
    --color-danger: #dc2626;
    --color-agi-bg: #fef3c7;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-surface);
    min-height: 100vh;
}

/* Header */
header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0.875rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

header .logo {
    height: 44px;
    object-fit: contain;
}

header .header-text h1 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

header .subtitle {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Layout */
.main-layout {
    display: flex;
    gap: 1.25rem;
    padding: 1.25rem;
    max-width: 1400px;
    margin: 0 auto;
    align-items: flex-start;
}

.parameters-card {
    flex: 0 0 420px;
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
}

.results-card {
    flex: 1;
    min-width: 0;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
}

.section-header h2,
.results-card > h2 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-accent);
}

/* Parameters */
.param-group {
    margin-bottom: 1.25rem;
}

.param-group h3 {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.5rem;
}

.param-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.param {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.param label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.param input {
    width: 90px;
    padding: 0.375rem 0.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--color-text);
}

.param input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.param .unit {
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

.param .caption {
    font-size: 0.6rem;
    color: var(--color-text-muted);
    font-style: italic;
    max-width: 100px;
    line-height: 1.3;
}

.param-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.param-hints span {
    font-size: 0.6rem;
    color: var(--color-text-muted);
}

.param-hints strong {
    color: var(--color-text-secondary);
    margin-right: 0.2rem;
}

.result-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    margin-top: 0.5rem;
    padding-top: 0.375rem;
}

.result-hints span {
    font-size: 0.6rem;
    color: var(--color-text-muted);
}

.result-hints strong {
    color: var(--color-text-secondary);
    margin-right: 0.15rem;
}

.table-note {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin: 0.5rem 0 0 0;
}

/* Scenario Table */
.scenario-table {
    width: 100%;
    border-collapse: collapse;
}

.scenario-table th,
.scenario-table td {
    padding: 0.375rem;
    text-align: center;
}

.scenario-table th {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.scenario-table .param-label {
    text-align: left;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.scenario-table input {
    width: 60px;
    padding: 0.3rem 0.4rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    text-align: center;
}

.scenario-table input:focus {
    outline: none;
    border-color: var(--color-accent);
}

/* Toggle */
.toggle-btn {
    background: none;
    border: none;
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
}

.toggle-btn:hover {
    text-decoration: underline;
}

.hidden {
    display: none;
}

.button-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Results */
.result-group {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.result-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.result-group h3 {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.625rem;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.results-table th,
.results-table td {
    padding: 0.5rem 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.results-table th {
    font-weight: 500;
    color: var(--color-text-muted);
    font-size: 0.7rem;
    text-align: right;
}

.results-table th:first-child,
.results-table td:first-child {
    text-align: left;
}

.results-table td:first-child {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.results-table .num {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.results-table .total {
    font-weight: 600;
    color: var(--color-text);
}

.results-table .agi-row {
    background: var(--color-agi-bg);
}

.results-table .agi-row td:first-child {
    color: var(--color-gold);
    font-weight: 600;
}

.results-table .pre-nit-row {
    color: var(--color-text-muted);
    font-style: italic;
}

.results-table .status-ok {
    color: var(--color-success);
    font-weight: 500;
}

.results-table .status-warn {
    color: var(--color-gold);
    font-weight: 500;
}

.surplus-positive {
    color: var(--color-success) !important;
}

.surplus-negative {
    color: var(--color-danger) !important;
}

.results-table .threshold {
    font-size: 0.7rem;
}

.household-table th:not(:first-child),
.household-table td:not(:first-child) {
    text-align: right;
}

/* Decile Table */
.decile-table .receives-benefit {
    background: #f0fdf4;
}

.decile-table .total-row {
    border-top: 2px solid var(--color-border);
    background: var(--color-surface);
}

.decile-table .total-row td {
    padding-top: 0.625rem;
}

.household-table .agi-highlight {
    background: var(--color-agi-bg);
    font-weight: 600;
}

.household-table .agi-header {
    background: var(--color-agi-bg);
    color: var(--color-gold);
    font-weight: 600;
}

/* UHI Funding Table */
.uhi-table .section-header {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.uhi-table .section-header td {
    padding: 0.5rem 0.75rem;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.uhi-table .windfall-row {
    background: #fef3c7;
}

.uhi-table .windfall-row td {
    font-weight: 500;
}

.uhi-table .total-row {
    border-top: 2px solid var(--color-border);
    background: var(--color-surface);
}

.uhi-table .total-row td {
    padding-top: 0.625rem;
}

/* Value change highlight animation */
@keyframes value-flash {
    0%, 15% { background-color: var(--color-accent-light); }
    100% { background-color: inherit; }
}

.value-changed {
    animation: value-flash 1.5s ease-out forwards;
}

/* Reset background after animation for styled rows */
.agi-row .value-changed,
.agi-highlight.value-changed {
    animation: value-flash-agi 1.5s ease-out forwards;
}

@keyframes value-flash-agi {
    0%, 15% { background-color: var(--color-accent-light); }
    100% { background-color: var(--color-agi-bg); }
}

.note {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin-top: 0.375rem;
}

/* Info Icon Tooltip */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-text-muted);
    color: white;
    font-size: 0.6rem;
    font-weight: 600;
    cursor: help;
    margin-left: 0.25rem;
    vertical-align: middle;
}

.info-icon:hover {
    background: var(--color-accent);
}

/* Buttons */
.btn-primary {
    background: var(--color-accent);
    color: white;
    border: none;
    padding: 0.4rem 0.875rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--color-accent-light);
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.875rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--color-surface);
}

/* Sources */
.sources-list {
    margin-top: 0.5rem;
}

.sources-list ul {
    list-style: none;
    columns: 2;
    column-gap: 0.75rem;
}

.sources-list li {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    padding: 0.125rem 0;
}

.sources-list strong {
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 0.6rem;
}

/* Footer */
footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    text-align: center;
    padding: 0.75rem;
    font-size: 0.7rem;
}

/* Floor Proposal Mode */
.floor-proposal-section {
    background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%);
    border: 1px solid #fbbf24;
    border-radius: 6px;
    padding: 0.75rem;
    margin-top: 0.5rem;
}

.floor-proposal-toggle {
    color: var(--color-gold) !important;
    font-weight: 600 !important;
}

.section-desc {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

/* Feature Boxes */
.feature-box {
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.625rem;
    margin-bottom: 0.75rem;
    background: var(--color-bg);
}

.feature-box:last-child {
    margin-bottom: 0;
}

.feature-box.active {
    border-color: var(--color-accent);
    background: #f8faff;
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
}

.feature-header input[type="checkbox"] {
    accent-color: var(--color-accent);
    width: 16px;
    height: 16px;
}

.feature-desc {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin: 0.375rem 0 0 1.5rem;
    line-height: 1.3;
}

.feature-prereq {
    font-size: 0.65rem;
    color: var(--color-gold);
    font-style: italic;
    margin: 0.25rem 0 0 1.5rem;
}

.feature-box.disabled {
    opacity: 0.6;
}

.feature-box.disabled .feature-header {
    cursor: not-allowed;
}

.feature-inputs {
    margin-top: 0.625rem;
    padding: 0.5rem;
    background: var(--color-surface);
    border-radius: 4px;
}

.feature-inputs .param {
    margin-bottom: 0.5rem;
}

.feature-inputs .param:last-child {
    margin-bottom: 0;
}

.feature-inputs select {
    width: 100%;
    padding: 0.375rem 0.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--color-text);
}

.feature-inputs select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.radio-label input[type="radio"] {
    accent-color: var(--color-accent);
}

.proposal-inputs {
    padding: 0.75rem;
    background: var(--color-surface);
    border-radius: 4px;
    margin-top: 0.5rem;
}

.proposal-inputs .param {
    margin-bottom: 0.75rem;
}

.proposal-inputs .param:last-child {
    margin-bottom: 0;
}

.proposal-inputs select {
    width: 100%;
    padding: 0.375rem 0.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--color-text);
}

.proposal-inputs select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.held-params {
    background: #f0f9ff;
    padding: 0.5rem;
    border-radius: 4px;
    margin: 0.5rem 0;
}

.held-label {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: 0.375rem;
}

.held-params select {
    width: 100%;
}

.solver-status {
    margin-top: 0.75rem;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
}

.solver-status.status-ok {
    background: #f0fdf4;
    border: 1px solid #86efac;
    color: var(--color-success);
}

.solver-status.status-error {
    background: #fef2f2;
    border: 1px solid #fca5a5;
    color: var(--color-danger);
}

.solver-status small {
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

/* Windfall Table */
.windfall-table .proposed-row {
    background: #eff6ff;
    border: 2px solid var(--color-accent);
}

.windfall-table .proposed-row td:first-child {
    color: var(--color-accent);
}

.windfall-table .proposed-row td:first-child small {
    display: block;
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin-top: 0.125rem;
}

.gap-positive {
    color: var(--color-danger) !important;
    font-weight: 500;
}

.capture-warning {
    color: var(--color-danger) !important;
    font-weight: 600;
}

.capture-high {
    color: var(--color-gold) !important;
    font-weight: 500;
}

/* Proposal mode styling for table rows */
.results-table tr.proposal-mode {
    background: #f8faff;
}

.results-table tr.proposal-mode.agi-row {
    background: linear-gradient(to right, var(--color-agi-bg), #f8faff);
}

/* Solved row styling (Feature 2) */
.results-table tr.solved-row {
    background: #ecfdf5;
    border-top: 2px solid var(--color-success);
}

.results-table tr.solved-row td:first-child {
    color: var(--color-success);
}

.results-table tr.solved-row small {
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

/* Design Parameters Grid */
.design-params-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.design-param-group {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.5rem;
}

.design-param-group h5 {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 0.375rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--color-border);
}

.design-param {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0;
    font-size: 0.65rem;
}

.design-param .param-name {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--color-text-secondary);
    min-width: 2rem;
    font-size: 0.65rem;
}

.design-param .param-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-bg);
    padding: 0.125rem 0.25rem;
    border-radius: 3px;
    border: 1px solid var(--color-border);
    font-size: 0.7rem;
}

.design-param .param-desc {
    font-size: 0.55rem;
    color: var(--color-text-muted);
    flex: 1;
    line-height: 1.2;
}

/* Editable design param inputs */
.design-param.editable input {
    width: 50px;
    padding: 0.2rem 0.25rem;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    text-align: center;
    background: var(--color-bg);
}

.design-param.editable input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* Derived value display (for deflation) */
.derived-value {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-align: center;
}

/* Sources Grid */
.sources-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.source-group {
    background: var(--color-surface);
    border-radius: 4px;
    padding: 0.5rem;
}

.source-group h6 {
    font-size: 0.55rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.source-group ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.source-group li {
    font-size: 0.6rem;
    color: var(--color-text-muted);
    padding: 0.1rem 0;
}

.source-group strong {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    color: var(--color-text-secondary);
}

/* Responsive */
@media (max-width: 900px) {
    .main-layout {
        flex-direction: column;
    }

    .parameters-card {
        width: 100%;
        position: static;
    }

    header {
        flex-direction: column;
        text-align: center;
    }

    .param-row {
        flex-direction: column;
    }

    .param input {
        width: 100%;
    }

    .sources-list ul {
        columns: 1;
    }

    .design-params-grid {
        grid-template-columns: 1fr;
    }

    .sources-grid {
        grid-template-columns: 1fr;
    }
}


/* Personal Benefit Calculator */
.calculator-card {
    max-width: 900px;
    margin: 1.5rem auto 0.25rem auto;
    background: var(--color-bg-card);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    padding: 1rem 1.5rem;
}

.calculator-card .section-header h2 {
    color: var(--color-accent);
    font-size: 1.1rem;
    margin: 0;
}

.calculator-intro {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin: 0.5rem 0 1rem 0;
}

.calculator-inputs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

@media (max-width: 700px) {
    .calculator-inputs {
        grid-template-columns: repeat(2, 1fr);
    }
}

.calc-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.calc-input-group label {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.calc-input-group input[type="number"] {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 0.9rem;
    width: 100%;
}

.calc-input-group.checkbox-group {
    justify-content: flex-end;
}

.calc-input-group.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.8rem;
}

.calculator-results {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 0.5rem;
}

.calc-result-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
    border-bottom: 2px solid var(--color-accent);
}

.calc-main-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}

.calc-main-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    font-family: monospace;
}

.calc-main-value.no-benefit {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.calc-result-details {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

@media (max-width: 700px) {
    .calc-result-details {
        grid-template-columns: repeat(2, 1fr);
    }
}

.calc-detail {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.calc-label {
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

.calc-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    font-family: monospace;
}

.calculator-note {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin: 0;
    font-style: italic;
}