:root {
  color-scheme: light dark;
  --canvas: #f6f3ec;
  --surface: #fffefa;
  --surface-muted: #f0eee7;
  --text: #1d2922;
  --muted: #536259;
  --border: #a7b0a8;
  --divider: #d7dbd4;
  --accent: #245f46;
  --accent-ink: #fffefa;
  --focus: #874d00;
  --mark-a: #185b45;
  --mark-a-surface: #e3eee7;
  --mark-b: #734a1c;
  --mark-b-surface: #f3eadc;
  --negative: #8a3029;
  --positive: #1b6749;
  --radius: 15px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #151d19;
    --surface: #1d2923;
    --surface-muted: #26342c;
    --text: #edf3ee;
    --muted: #bfcbc2;
    --border: #718277;
    --divider: #3c4a41;
    --accent: #a1d9b8;
    --accent-ink: #14221a;
    --focus: #ffd087;
    --mark-a: #a1d9b8;
    --mark-a-surface: #283d31;
    --mark-b: #eac48f;
    --mark-b-surface: #413324;
    --negative: #ffaaa0;
    --positive: #a1d9b8;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; background: var(--canvas); color: var(--text); font-size: 16px; line-height: 1.5; }
button, input { font: inherit; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
::selection { color: var(--accent-ink); background: var(--accent); }
.page-shell { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.masthead { min-height: 66px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--divider); }
.wordmark, .footer-mark { color: var(--text); font-size: 1.35rem; font-weight: 740; letter-spacing: -.06em; line-height: 1; text-decoration: none; }
.wordmark span, .footer-mark span { color: var(--accent); }
.tool-label { color: var(--muted); font-size: .83rem; }
.intro { padding: 40px 0 26px; max-width: 740px; }
h1, h2, h3, h4, p { margin-top: 0; }
h1 { margin-bottom: 10px; font-size: clamp(2rem, 4vw, 3.05rem); font-weight: 610; letter-spacing: -.045em; line-height: 1.08; }
.lede { max-width: 630px; margin-bottom: 13px; color: var(--muted); font-size: 1.06rem; }
.privacy-note { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .84rem; }
.privacy-dot { width: 8px; height: 8px; border: 2px solid var(--accent); border-radius: 50%; }
.panel { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.quick-read { position: sticky; top: 0; z-index: 10; display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 16px; margin: 0 0 25px; padding: 10px 15px; background: var(--surface); box-shadow: 0 6px 18px rgb(0 0 0 / .08); }
.quick-agency { min-width: 0; display: grid; grid-template-columns: minmax(90px, 1fr) auto auto; align-items: center; gap: 11px; }
.quick-agency + .quick-agency { border-left: 1px solid var(--divider); padding-left: 16px; }
.quick-name { overflow: hidden; color: var(--text); font-size: .9rem; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.quick-agency > span:not(.quick-name) { display: grid; line-height: 1.25; }
.quick-label { color: var(--muted); font-size: .68rem; }
.quick-agency strong { font-size: .89rem; font-weight: 680; font-variant-numeric: tabular-nums; white-space: nowrap; }
.quick-details { font-size: .8rem; font-weight: 620; white-space: nowrap; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 20px; }
.section-heading h2 { margin: 0; font-size: 1.42rem; font-weight: 620; letter-spacing: -.025em; }
.section-heading h3 { margin: 0; font-size: 1.13rem; font-weight: 630; }
.section-note { max-width: 360px; margin: 0; color: var(--muted); font-size: .86rem; text-align: right; }
.shared-panel { padding: 22px 24px 24px; }
.shared-fields { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.field { display: grid; gap: 7px; color: var(--muted); font-size: .82rem; font-weight: 560; }
.input-wrap { display: flex; align-items: center; min-width: 0; min-height: 46px; padding: 0 11px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); }
.input-wrap:focus-within { border-color: var(--accent); outline: 2px solid color-mix(in srgb, var(--accent) 32%, transparent); outline-offset: 1px; }
.input-wrap input { width: 100%; min-width: 0; min-height: 42px; padding: 0 3px; border: 0; outline: 0; background: transparent; color: var(--text); font-variant-numeric: tabular-nums; }
.input-wrap input:focus-visible { outline: none; }
.input-wrap > span:not(.unit) { color: var(--muted); }
.unit { flex: none; color: var(--muted); font-size: .75rem; font-weight: 450; }
.shared-panel .input-wrap { max-width: 100%; }
.agency-section, .results-section { margin-top: 38px; }
.section-heading-spaced { margin-bottom: 17px; }
.agency-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 16px; }
.agency-input { min-width: 0; margin: 0; padding: 19px 20px 22px; }
.agency-title-row { display: flex; align-items: center; gap: 11px; margin-bottom: 22px; }
.scenario-mark { width: 32px; height: 32px; display: grid; flex: none; place-items: center; border-radius: 9px; font-size: .86rem; font-weight: 750; }
.mark-a { background: var(--mark-a-surface); color: var(--mark-a); }
.mark-b { background: var(--mark-b-surface); color: var(--mark-b); }
.name-field { min-width: 0; flex: 1; }
.name-field input { width: 100%; min-height: 42px; padding: 2px 5px; border: 0; border-bottom: 1px solid var(--border); border-radius: 0; background: transparent; color: var(--text); font-size: 1.25rem; font-weight: 650; letter-spacing: -.025em; }
.name-field input:focus { border-bottom-color: var(--accent); outline: none; }
.input-group + .input-group { margin-top: 21px; padding-top: 18px; border-top: 1px solid var(--divider); }
.input-group h3 { margin-bottom: 13px; color: var(--text); font-size: .88rem; font-weight: 650; }
.compact-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px 12px; }
.mode-switch { display: flex; flex-wrap: wrap; gap: 3px; margin: 0 0 14px; padding: 3px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-muted); }
.mode-switch label { position: relative; min-height: 40px; display: flex; flex: 1; align-items: center; justify-content: center; cursor: pointer; }
.mode-switch input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.mode-switch label span { width: 100%; padding: 8px 10px; border-radius: 6px; color: var(--muted); font-size: .81rem; font-weight: 570; text-align: center; }
.mode-switch input:checked + span { background: var(--surface); color: var(--text); box-shadow: 0 1px 4px rgb(0 0 0 / .12); }
.mode-switch input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 1px; }
.agency-input [hidden], [hidden] { display: none !important; }
.horizon-chip { flex: none; padding: 6px 11px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: .8rem; font-variant-numeric: tabular-nums; }
.results-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.result-card { min-width: 0; padding: 22px 23px; }
.result-card-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 19px; }
.scenario-label { display: block; margin-bottom: 3px; color: var(--muted); font-size: .74rem; }
.result-card-head h3 { max-width: 420px; overflow-wrap: anywhere; margin: 0; font-size: 1.2rem; font-weight: 650; letter-spacing: -.02em; }
.hero-metric { padding: 16px 17px 15px; border-radius: 11px; background: var(--surface-muted); }
.hero-metric > span, .hero-metric small { display: block; color: var(--muted); font-size: .78rem; }
.hero-metric strong { display: block; margin: 2px 0 0; font-size: clamp(1.8rem, 3vw, 2.45rem); font-weight: 640; letter-spacing: -.045em; font-variant-numeric: tabular-nums; line-height: 1.2; }
.hero-metric small { margin-top: 2px; }
.metric-list { margin: 14px 0 0; }
.metric-list > div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--divider); }
.metric-list dt { color: var(--muted); font-size: .83rem; }
.metric-list dd { margin: 0; font-size: .9rem; font-weight: 630; font-variant-numeric: tabular-nums; text-align: right; }
.metric-list .contribution-row dt, .metric-list .contribution-row dd { color: var(--text); font-weight: 690; }
[data-value-kind="negative"] { color: var(--negative) !important; }
[data-value-kind="positive"] { color: var(--positive) !important; }
.breakeven { margin-top: 18px; padding: 14px 15px; border: 1px solid var(--divider); border-radius: 10px; }
.breakeven h4 { margin-bottom: 7px; font-size: .83rem; font-weight: 680; }
.breakeven p { display: flex; justify-content: space-between; gap: 16px; margin: 0; padding: 4px 0; color: var(--muted); font-size: .79rem; }
.breakeven strong { color: var(--text); font-size: .8rem; font-weight: 640; text-align: right; }
.result-incomplete { margin: 14px 0 0; color: var(--muted); font-size: .82rem; }
.sensitivity { margin-top: 18px; padding: 21px 23px 18px; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 11px 12px; border-bottom: 1px solid var(--divider); vertical-align: top; }
th { color: var(--muted); font-size: .78rem; font-weight: 600; }
td { font-size: .83rem; font-variant-numeric: tabular-nums; }
tbody th { color: var(--text); font-size: .82rem; font-weight: 580; white-space: nowrap; }
.sensitivity-main { display: block; color: var(--text); font-size: .82rem; font-weight: 650; }
.sensitivity-sub { display: block; color: var(--muted); font-size: .76rem; }
.table-note { margin: 12px 0 0; color: var(--muted); font-size: .77rem; }
.method-note { display: flex; align-items: flex-start; gap: 11px; margin: 24px 0 35px; padding: 16px 18px; border-left: 3px solid var(--accent); background: var(--surface-muted); }
.method-note p { margin: 0; color: var(--muted); font-size: .83rem; }
.method-note strong { color: var(--text); }
.method-icon { width: 20px; height: 20px; display: grid; flex: none; place-items: center; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent); font-size: .75rem; font-weight: 700; }
.page-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 19px 0 25px; border-top: 1px solid var(--divider); }
.page-footer > div:first-child { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: .77rem; }
.footer-mark { font-size: 1.07rem; }
.share-controls { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 10px; }
.state-message { color: var(--muted); font-size: .78rem; }
.state-message[data-state="error"] { color: var(--negative); }
.copy-button { min-height: 42px; padding: 8px 13px; border: 1px solid var(--accent); border-radius: 8px; background: var(--accent); color: var(--accent-ink); cursor: pointer; font-size: .82rem; font-weight: 640; }
.copy-button:hover { filter: brightness(.94); }
.bookmark-hint { color: var(--muted); font-size: .75rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; clip-path: inset(50%); }

@media (max-width: 760px) {
  .page-shell { width: min(100% - 32px, 620px); }
  .intro { padding-top: 30px; }
  .quick-read { grid-template-columns: 1fr 1fr; gap: 8px; padding: 9px 10px; }
  .quick-agency { grid-template-columns: minmax(0, 1fr) auto auto; gap: 7px; }
  .quick-agency + .quick-agency { padding-left: 9px; }
  .quick-name { max-width: 90px; font-size: .79rem; }
  .quick-label { font-size: .64rem; }
  .quick-agency strong { font-size: .78rem; }
  .quick-details { grid-column: 1 / -1; justify-self: end; padding: 2px 2px 0; font-size: .75rem; }
  .shared-fields { gap: 12px; }
  .agency-grid, .results-grid { grid-template-columns: 1fr; }
  .agency-input { padding: 18px; }
  .section-note { max-width: 250px; font-size: .78rem; }
}

@media (max-width: 520px) {
  .page-shell { width: calc(100% - 28px); }
  .masthead { min-height: 58px; }
  .intro { padding: 25px 0 20px; }
  .lede { font-size: .97rem; }
  .privacy-note { font-size: .77rem; }
  .quick-read { grid-template-columns: 1fr; }
  .quick-agency { grid-template-columns: minmax(75px, 1fr) auto auto; }
  .quick-agency + .quick-agency { padding: 7px 0 0; border-top: 1px solid var(--divider); border-left: 0; }
  .quick-details { grid-column: auto; justify-self: start; }
  .section-heading { align-items: start; gap: 10px; }
  .section-heading h2 { font-size: 1.25rem; }
  .section-note { max-width: 130px; padding-top: 2px; text-align: right; }
  .shared-panel { padding: 17px 15px 18px; }
  .shared-fields { grid-template-columns: 1fr; gap: 12px; }
  .shared-fields .field { grid-template-columns: minmax(0, 1fr) minmax(130px, 48%); align-items: center; gap: 8px; }
  .shared-fields .input-wrap { min-height: 44px; }
  .compact-fields { gap: 12px 9px; }
  .field { font-size: .77rem; }
  .input-wrap { min-height: 44px; padding: 0 8px; }
  .unit { font-size: .68rem; }
  .results-section, .agency-section { margin-top: 30px; }
  .result-card { padding: 18px; }
  .sensitivity { padding: 17px 14px; }
  th, td { padding: 9px 8px; }
  .page-footer { align-items: flex-start; flex-direction: column; }
  .share-controls { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  :root { color-scheme: light; --canvas: #fff; --surface: #fff; --surface-muted: #f2f2ef; --text: #17211b; --muted: #444; --border: #888; --divider: #ccc; }
  body { background: #fff; color: #17211b; }
  .quick-read { position: static; box-shadow: none; }
  .copy-button, .bookmark-hint, .quick-details { display: none; }
  .agency-grid, .results-grid { break-inside: avoid; }
  .panel { break-inside: avoid; }
}