:root{
  --bg:#f6f7fb; --card:#fff; --ink:#1b2333; --muted:#5b6475; --line:#e3e6ee;
  --brand:#2f5bea; --brand2:#12a37f; --warn:#c2410c; --neg:#c0392b; --pos:#12805c;
  --radius:14px; --shadow:0 1px 2px rgba(20,30,60,.06),0 6px 24px rgba(20,30,60,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}
.wrap{max-width:1280px;margin:0 auto;padding:0 20px}
.hero{background:linear-gradient(135deg,#1e3a8a 0%,#2f5bea 55%,#12a37f 100%);color:#fff;padding:36px 0 28px}
.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);margin:.2em 0 .3em;letter-spacing:-.02em}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;opacity:.85;margin:0}
.lede{font-size:1.1rem;max-width:62ch;opacity:.95}
.note-banner{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:10px;padding:10px 14px;max-width:80ch;font-size:.93rem}
.note-banner a{color:#fff}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:24px;margin-top:24px;align-items:start}
@media (max-width:1020px){.layout{grid-template-columns:minmax(0,1fr)}.summary{position:static!important;order:-1}}
.card{min-width:0;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 24px;margin-bottom:24px;border:1px solid var(--line)}
.card-head h2{margin:0 0 4px;font-size:1.35rem;display:flex;align-items:center;gap:10px}
.num{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;font-size:.95rem}
.sub{color:var(--muted);margin:0 0 14px}
.presets{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:8px 0}
.presets .label{font-weight:600;color:var(--muted);font-size:.9rem}
.chip{border:1px solid var(--line);background:#f2f4fa;border-radius:999px;padding:6px 12px;font:inherit;font-size:.9rem;cursor:pointer;color:var(--ink)}
.chip:hover{border-color:var(--brand)}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.preset-note{font-size:.88rem;color:var(--warn);min-height:1.2em;margin:4px 0 10px}
.explain{background:#f4f7ff;border:1px solid #dfe6fb;border-radius:10px;padding:8px 14px;margin:6px 0 14px}
.explain summary{cursor:pointer;font-weight:600}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-top:6px;flex-wrap:wrap}
.tab{border:none;background:none;padding:9px 14px;font:inherit;cursor:pointer;color:var(--muted);border-bottom:3px solid transparent}
.tab.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}
.tab .count{font-size:.75rem;color:var(--muted);font-weight:400}
.link-opts{display:flex;flex-direction:column;gap:2px;margin:10px 0;font-size:.92rem}
.bracket-editor{margin-bottom:14px}
table.brackets{width:100%;border-collapse:collapse;max-width:560px}
.brackets th{text-align:left;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:6px 4px}
.brackets td{padding:4px}
.brackets input[type=number]{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:8px;font:inherit}
.brackets input:disabled{background:#f3f4f7;color:var(--muted)}
.money,.pct{position:relative}
.money::before{content:"$";position:absolute;left:9px;top:50%;transform:translateY(-50%);color:var(--muted)}
.money input{padding-left:20px!important}
.pct::after{content:"%";position:absolute;right:10px;top:50%;transform:translateY(-50%);color:var(--muted)}
.del{border:none;background:none;color:var(--muted);cursor:pointer;font-size:1.1rem;padding:4px 8px;border-radius:6px}
.del:hover{background:#fdecec;color:var(--neg)}
.row-actions{display:flex;gap:10px;align-items:center;margin-top:8px;flex-wrap:wrap}
.btn{border:1px solid var(--brand);background:var(--brand);color:#fff;border-radius:9px;padding:8px 14px;font:inherit;font-size:.92rem;cursor:pointer}
.btn:hover{filter:brightness(1.07)}
.btn.ghost{background:#fff;color:var(--brand)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:12px 0}
@media (max-width:720px){.grid2{grid-template-columns:1fr}}
.control label{display:block;font-weight:600;margin:6px 0 4px}
.control output{font-weight:700;color:var(--brand)}
.control select{width:100%;padding:8px;border-radius:8px;border:1px solid var(--line);font:inherit;background:#fff}
input[type=range]{width:100%;accent-color:var(--brand)}
.hint{font-size:.85rem;color:var(--muted);margin:4px 0}
.across{background:#f7f8fc;border-radius:10px;padding:10px 14px;margin:8px 0 12px}
.table-scroll{overflow-x:auto}
table.data-table{width:100%;border-collapse:collapse;font-size:.92rem}
.data-table th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);text-align:left;border-bottom:1px solid var(--line);padding:8px 6px}
.data-table td{border-bottom:1px solid var(--line);padding:8px 6px;vertical-align:middle}
.data-table .r{text-align:right;white-space:nowrap}
.data-table.compact td{padding:6px}
.data-table td.ctrl{min-width:190px}
.data-table td .mini{display:flex;align-items:center;gap:8px}
.data-table td .mini input[type=range]{flex:1;min-width:110px}
.data-table td .mini output{min-width:70px;text-align:right;font-weight:600;font-variant-numeric:tabular-nums}
.data-table .cat-note{display:block;font-size:.78rem;color:var(--muted);max-width:44ch}
.tag{display:inline-block;font-size:.7rem;padding:1px 6px;border-radius:999px;background:#eef1f8;color:var(--muted);margin-left:4px;vertical-align:1px}
.pos{color:var(--pos)} .neg{color:var(--neg)}
.charts{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:820px){.charts{grid-template-columns:1fr}}
figure{margin:0}
figcaption{font-weight:600;font-size:.92rem;margin-bottom:6px}
.chart-box{position:relative;height:300px}
.summary{position:sticky;top:16px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 18px 16px;border:1px solid var(--line)}
.summary h2{margin:0;font-size:1.2rem}
.sum-table{width:100%;border-collapse:collapse;font-size:.9rem;font-variant-numeric:tabular-nums}
.sum-table th{font-size:.72rem;text-transform:uppercase;color:var(--muted);padding:4px}
.sum-table td{padding:6px 4px;border-top:1px solid var(--line)}
.sum-table td:first-child{font-weight:600}
.sum-table tr.total td{border-top:2px solid var(--ink);font-weight:700}
.sum-table .r{text-align:right}
.big-change{margin:14px 0 6px;padding:12px;border-radius:10px;background:#f4f7ff;text-align:center}
.big-change .v{font-size:1.9rem;font-weight:800;letter-spacing:-.02em;display:block}
.big-change .l{font-size:.82rem;color:var(--muted)}
.bar-compare{margin:8px 0}
.bar-compare .b{height:12px;border-radius:6px;margin:3px 0 8px;transition:width .2s}
.bar-compare .lab{font-size:.78rem;color:var(--muted);display:flex;justify-content:space-between}
.prose h3{margin-top:1.4em}
.prose li{margin:.3em 0}
.sources li{margin:.45em 0;font-size:.92rem}
.foot{color:var(--muted);font-size:.85rem;padding-bottom:40px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.sources a{overflow-wrap:anywhere;word-break:break-word}

/* ---- child tax credit ---- */
.note-banner.estimate { margin: .6rem 0 .8rem; background: #fff8e6; border-color: #f0d48a; color: #3d2e00; max-width: none; }
.note-banner.estimate a { color: #7a4b00; }
.sum-table tr.outlay td { color: #7a4b00; border-top: 1px dashed #d9c7a0; }
.sum-table tr.net td { border-top: 2px solid #1d2a4d; }
#ctcRefBox.dim { opacity: .45; }
.ctc-sum { width: 100%; }
.ctc-sum td:first-child { font-size: .9rem; }
.sum-table td.r { white-space: nowrap; }

/* ---- bracket statistics ---- */
.bracket-view{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0 6px}
.bracket-view .label{font-size:.85rem;color:var(--muted);font-weight:600}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.seg button{border:0;background:#fff;padding:6px 12px;font:inherit;font-size:.85rem;cursor:pointer;color:var(--ink)}
.seg button+button{border-left:1px solid var(--line)}
.seg button.active{background:#2f5bea;color:#fff}
table.brackets{max-width:720px}
.brackets th.stat,.all-filers th.stat{text-align:right;cursor:help;white-space:nowrap}
td.stat{position:relative;text-align:right;min-width:78px;font-variant-numeric:tabular-nums;font-size:.9rem;padding:4px 6px}
td.stat .sbar{position:absolute;right:4px;top:22%;height:56%;background:#dfe6fb;border-radius:4px;z-index:0;max-width:calc(100% - 8px)}
td.stat .sv{position:relative;z-index:1}
.bracket-editor.view-all table.brackets .stat{display:none}
.brackets tr.zero-row td,.all-filers tr.zero-row td{border-top:1px dashed var(--line);color:var(--muted);font-size:.9rem;padding-top:8px}
.info{font-size:.8em;color:var(--muted)}
.all-filers{max-width:720px;margin-top:6px}
@media (max-width:520px){.brackets input[type=number]{padding:6px 5px;min-width:70px}td.stat{min-width:62px;font-size:.82rem}.brackets th{font-size:.7rem}}
.bracket-editor.view-all table.brackets tr.zero-row{display:none}

/* ---- scenarios ---- */
.scenarios{padding-top:16px;padding-bottom:12px}
.sc-head h2{margin:0;font-size:1.15rem}
.sc-head .sub{margin:.2rem 0 .6rem}
.sc-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.sc-row input[type=text]{flex:1 1 220px;min-width:0;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit}
#scLink{width:100%;margin-top:8px;padding:7px 9px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.82rem;color:var(--muted);box-sizing:border-box}
.sc-msg{min-height:1.2em;margin:.4rem 0;font-size:.88rem;color:#12734f}
.sc-msg.bad{color:#b42318}
.sc-saved summary{cursor:pointer;font-weight:600;font-size:.92rem}
.sc-list{list-style:none;margin:.4rem 0 0;padding:0}
.sc-list li{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;padding:6px 0;border-top:1px solid var(--line)}
.sc-list li.empty{color:var(--muted);font-size:.88rem}
.sc-list .nm{font-weight:600;flex:1 1 160px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sc-list .when{font-size:.8rem;color:var(--muted)}
.sc-list .acts{display:flex;gap:6px}
.btn.small{padding:4px 10px;font-size:.82rem}
.btn.danger{color:#b42318;border-color:#f2c4c0}
.table-scroll{position:relative;max-width:100%}
@media (max-width:520px){
  .brackets th{white-space:normal!important;letter-spacing:0;font-size:.66rem;padding:4px 2px}
  .brackets td{padding:3px 2px}
  .brackets input[type=number]{min-width:0;width:100%;padding:6px 4px;font-size:.9rem}
  .money input{padding-left:15px!important}.money::before{left:5px}
  .pct::after{right:5px}
  td.stat{min-width:0;width:17%;font-size:.8rem;padding:3px 3px}
  .brackets .info{display:none}
  .brackets button.del{padding:2px 4px}
}

/* ---- income context ---- */
.income-context{margin:14px 0 6px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#f8faff;max-width:720px}
.ic-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
.ic-head h3{margin:0;font-size:1rem}
.ic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:10px 0 6px}
.ic-tile{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 10px;display:flex;flex-direction:column;min-width:0}
.ic-tile .k{font-size:.72rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);font-weight:600}
.ic-tile .v{font-size:1.2rem;font-weight:700;font-variant-numeric:tabular-nums}
.ic-tile .s{font-size:.75rem;color:var(--muted)}
.ic-line{margin:.35rem 0;font-size:.88rem}
.ic-ref{padding-top:6px;border-top:1px dashed var(--line)}
.ic-ref .k{color:var(--muted);font-weight:600}
.ic-why summary{cursor:pointer;font-size:.86rem;font-weight:600;color:var(--brand)}
.ic-why p{font-size:.86rem;margin:.4rem 0}
.mbadge{color:#c2410c;font-size:.8rem;margin-right:4px;cursor:help;position:relative;z-index:1}
@media (max-width:720px){.ic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.income-context{padding:10px}.ic-tile .v{font-size:1.05rem}}

/* threshold units toggle */
.thr-mode-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:6px 0 8px}
.thr-mode-row .label{font-size:.85rem;color:var(--muted)}
.thr-why{flex-basis:100%;font-size:.85rem}
.thr-why summary{cursor:pointer;color:#2f5bea}
.thr-why p{margin:.4em 0;max-width:62ch}
.thr-alt{display:block;font-size:.72rem;color:var(--muted);margin-top:2px;white-space:nowrap}

/* render errors and version-mismatch warning (one failing section must not blank the rest) */
.render-error{background:#fff1f0;border:1px solid #f3b2ab;color:#8a1c12;border-radius:8px;padding:8px 12px;margin:0 0 10px;font-size:.9rem}
.version-warn{background:#fff8e6;border:1px solid #f0d48a;color:#3d2e00;border-radius:10px;padding:10px 14px;margin:14px 0 0;font-size:.93rem;overflow-wrap:anywhere}
td.stat .sv.wait{color:var(--muted)}

/* ---- multi-page site: nav, page headers, scenarios page, sources page ---- */
:root{--taxsim-build:"00fa1a7475"}   /* build stamp (scripts/stamp_version.py): lets every page detect a stale cached styles.css */
.site-nav{background:#14255f;color:#fff;position:relative;z-index:5}
.nav-in{display:flex;align-items:center;gap:6px 18px;flex-wrap:wrap;min-height:48px}
.site-nav .brand{color:#fff;font-weight:700;text-decoration:none;letter-spacing:-.01em;white-space:nowrap;margin-right:auto}
.nav-links{display:flex;gap:2px;flex-wrap:wrap}
.nav-links a{color:#dbe4ff;text-decoration:none;padding:12px 10px;font-size:.93rem;border-bottom:3px solid transparent;white-space:nowrap}
.nav-links a:hover{color:#fff}
.nav-links a[aria-current=page]{color:#fff;font-weight:600;border-bottom-color:#5fd3b0}
@media (max-width:560px){.site-nav .brand{display:none}.nav-in{padding:0 8px}.nav-links{width:100%;justify-content:space-between}.nav-links a{padding:11px 6px;font-size:.88rem}}
.page-head{background:linear-gradient(135deg,#1e3a8a 0%,#2f5bea 60%,#12a37f 100%);color:#fff;padding:26px 0 22px}
.page-head h1{margin:0 0 .25em;font-size:clamp(1.6rem,4vw,2.2rem);letter-spacing:-.02em}
.page-head .lede{margin:0;font-size:1rem}
.page-head code{background:rgba(255,255,255,.18);padding:0 4px;border-radius:4px}
.page-main{margin-top:24px}
.page-main > .card{max-width:1000px}
/* simulator: small Save as… control in the summary */
.quick-save{margin-top:12px;padding-top:10px;border-top:1px solid var(--line)}
.qs-row{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.qs-link{font-size:.9rem;color:var(--brand);text-decoration:none}
.qs-link:hover{text-decoration:underline}
.qs-form{display:flex;gap:6px;margin-top:8px}
[hidden]{display:none!important}
.qs-form input{flex:1 1 auto;min-width:0;padding:6px 9px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.9rem}
.quick-save .sc-msg{margin:.4rem 0 0}
/* scenarios page */
.sc-head-row{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.sc-head .count{color:var(--muted);font-weight:400;font-size:.95rem}
.sc-stats{display:flex;flex-direction:column;gap:2px;margin:.2rem 0 .7rem;font-size:.92rem}
.sc-stats .sc-net b{font-size:1.1rem}
.sc-stats .sc-parts{color:var(--muted);font-size:.85rem}
.sc-list .sc-item{display:block;padding:12px 0}
.sc-item .sc-top{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.sc-item .nm{flex:1 1 160px;font-size:1rem}
.sc-item .sc-stats{margin:.3rem 0 .5rem}
.sc-item .acts{flex-wrap:wrap}
.sc-bad{color:#b42318}
#scLink{width:100%;margin-top:8px;padding:7px 9px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.85rem}
a.btn{display:inline-block;text-decoration:none}
/* sources page (generated from SOURCES.md) */
.src-list{padding-left:1.6em;margin:.6em 0}
.src-list > li{margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);scroll-margin-top:12px}
.src-list > li:target{background:#fff8e6;border-radius:6px}
.src-title{margin:0 0 4px;font-weight:600}
.src-list dl{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:2px 12px;margin:0;font-size:.9rem}
.src-list dt{color:var(--muted);font-weight:600}
.src-list dd{margin:0;overflow-wrap:anywhere}
.sources-page code{font-size:.85em;background:#f2f4fa;padding:0 4px;border-radius:4px;overflow-wrap:anywhere}
.sources-page a{overflow-wrap:anywhere}
@media (max-width:520px){.src-list dl{grid-template-columns:1fr}.src-list dd{margin-bottom:4px}.page-main .card{padding:16px 14px}}