:root {
  color-scheme: dark;
  --bg: #0a0e0c; --panel: #111714; --panel2: #161e1a; --line: #243029; --grid: #1e2722;
  --ink: #f1ede3; --ink2: #bdb9ad; --muted: #8b9088;
  --chalk: #e9e3d3; --ball: #c8352b;
  --out: #e5534b; --notout: #2fbf71; --uc: #f2b134;
  --bat: #3987e5; --bowl: #d95926;
  --seq0: #0d366b; --seq1: #184f95; --seq2: #256abf; --seq3: #3987e5; --seq4: #6da7ec; --seq5: #9ec5f4; --seq6: #cde2fb;
  --display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --sans: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --r: 14px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
.hero > *, .room > *, .grid2 > *, .grid3 > *, .lbw > * { min-width: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans);
  background-image:
    radial-gradient(1200px 600px at 85% -10%, #1b2a22 0%, transparent 60%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.05'/></svg>");
  -webkit-font-smoothing: antialiased;
}
a { color: var(--chalk); }
:focus-visible { outline: 2px solid var(--uc); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 16px; top: 12px; z-index: 50; background: var(--panel); padding: 8px 12px; }
h1, h2, h3 { font-family: var(--display); letter-spacing: .01em; margin: 0; line-height: 1; }
h3 { font-size: 1.35rem; font-weight: 700; text-transform: uppercase; color: var(--ink2); margin-bottom: 12px; }
.num, .mono, td.n, .eq { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* header */
.top { position: sticky; top: 0; z-index: 20; display: flex; gap: 24px; align-items: center; justify-content: space-between;
  padding: 12px clamp(16px, 4vw, 48px); background: #0a0e0ccc; backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 10px; align-items: center; text-decoration: none; font-family: var(--display); font-size: 1.6rem; font-weight: 800; text-transform: uppercase; letter-spacing: .02em; }
.brand svg { width: 28px; height: 28px; } .brand b { color: var(--ball); font-weight: 900; }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--ink2); font-size: .88rem; padding: 6px 10px; border-radius: 999px; }
nav a:hover { color: var(--ink); background: var(--panel2); }

/* hero */
.hero { display: grid; grid-template-columns: 1.35fr 1fr; gap: 24px 48px; padding: clamp(32px, 6vw, 80px) clamp(16px, 4vw, 48px) 32px; max-width: 1320px; margin: 0 auto; align-items: center; }
.kicker { font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--uc); margin: 0 0 16px; }
.hero h1 { font-size: clamp(2.6rem, 5.3vw, 4.8rem); font-weight: 900; text-transform: uppercase; line-height: .92; }
.hero h1 em { font-style: normal; color: var(--chalk); -webkit-text-stroke: 0; display: block; opacity: .55; }
.lede { font-size: 1.15rem; color: var(--ink2); max-width: 40ch; margin: 22px 0 28px; }
.lede strong { color: var(--ink); }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 18px; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; font-weight: 600; color: var(--ink); background: var(--panel); cursor: pointer; font: 600 .95rem var(--sans); }
.btn:hover { border-color: var(--chalk); }
.btn.primary { background: var(--chalk); color: #101410; border-color: var(--chalk); }
.hero-viz { margin: 0; }
.hero-viz svg { width: 100%; height: auto; display: block; }
.hero-viz figcaption { font-size: .78rem; color: var(--muted); margin-top: 6px; }
.stumps rect { fill: var(--chalk); }
.hudv { fill: var(--ink); font-size: 20px; font-weight: 600; } .hudv.big { fill: var(--uc); font-size: 30px; }
.track { stroke-dashoffset: 300; animation: draw 2.2s ease-out forwards; }
.ballmark { animation: pop .5s 1.9s both; transform-origin: 214px 92px; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { from { transform: scale(0); } to { transform: scale(1); } }
.tiles { grid-column: 1 / -1; list-style: none; padding: 0; margin: 8px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.tiles li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; opacity: 0; animation: rise .6s forwards; }
.tiles li:nth-child(2) { animation-delay: .08s; } .tiles li:nth-child(3) { animation-delay: .16s; } .tiles li:nth-child(4) { animation-delay: .24s; }
.tiles .v { font-family: var(--display); font-size: 2.6rem; font-weight: 800; line-height: 1; }
.tiles .k { color: var(--ink2); font-size: .9rem; margin-top: 6px; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* sections */
.sec { max-width: 1320px; margin: 0 auto; padding: 56px clamp(16px, 4vw, 48px); border-top: 1px solid var(--line); }
.sec-head { display: grid; grid-template-columns: 64px 1fr; gap: 16px; margin-bottom: 24px; }
.sec-head .num { margin: 4px 0 0; color: var(--uc); font-size: .9rem; }
.sec-head h2 { font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 800; text-transform: uppercase; }
.sec-head p { color: var(--ink2); max-width: 72ch; margin: 10px 0 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-bottom: 16px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.note, .hint { color: var(--muted); font-size: .86rem; margin: 10px 0 0; }
.takeaway { font-size: 1.05rem; color: var(--ink2); max-width: 80ch; } .takeaway b { color: var(--ink); }

/* modes and filters */
.modes { display: inline-flex; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 4px; margin-bottom: 16px; flex-wrap: wrap; }
.modes button { border: 0; background: none; color: var(--ink2); font: 600 .92rem var(--sans); padding: 8px 16px; border-radius: 999px; cursor: pointer; }
.modes button[aria-selected="true"] { background: var(--chalk); color: #101410; }
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.chip { text-align: left; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 12px; padding: 10px 14px; cursor: pointer; font: 500 .9rem var(--sans); max-width: 260px; }
.chip small { display: block; color: var(--muted); font-size: .75rem; margin-top: 2px; }
.chip[aria-pressed="true"] { border-color: var(--uc); box-shadow: inset 0 0 0 1px var(--uc); }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 14px; }
.filters label, .custom label { display: grid; gap: 4px; font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
select, input[type="number"], input[type="search"] { background: var(--panel2); color: var(--ink); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font: 500 .92rem var(--sans); min-width: 0; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { background: var(--panel2); color: var(--ink2); border: 0; padding: 8px 12px; font: 600 .85rem var(--sans); cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--chalk); color: #101410; }
.custom { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; }

/* room */
.room { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.state .meta { font-family: var(--mono); font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.state h3.title { font-size: 1.9rem; color: var(--ink); margin: 6px 0 14px; text-transform: uppercase; }
.score { display: flex; gap: 18px; flex-wrap: wrap; align-items: baseline; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.score .big { font-family: var(--display); font-size: 2.6rem; font-weight: 800; }
.score .sub { color: var(--ink2); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px 18px; margin: 14px 0; font-size: .92rem; }
.facts dt { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; }
.facts dd { margin: 0; }
.dots { display: inline-flex; gap: 4px; vertical-align: middle; } .dots i { width: 10px; height: 10px; border-radius: 50%; border: 1.5px solid var(--chalk); } .dots i.on { background: var(--chalk); }

.eqrow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.eqrow div { background: var(--panel2); border-radius: 10px; padding: 12px; }
.eqrow .lab { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.eqrow .val { font-family: var(--display); font-size: 1.9rem; font-weight: 800; }
.eqrow .val small { font-family: var(--sans); font-size: .8rem; color: var(--ink2); font-weight: 500; }
.threshold { margin: 18px 0 6px; }
.threshold .lab { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.threshold .p { font-family: var(--display); font-weight: 900; font-size: clamp(3rem, 7vw, 4.6rem); line-height: .95; color: var(--uc); }
.threshold .p small { font-size: .35em; color: var(--ink2); font-family: var(--sans); font-weight: 500; }
.belief { margin-top: 10px; }
.belief svg { width: 100%; height: auto; display: block; overflow: visible; }
.belief input[type="range"] { width: 100%; accent-color: var(--chalk); margin: 6px 0 0; }
.ev { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 8px; font-size: .95rem; }
.ev .pos { color: var(--notout); } .ev .neg { color: var(--out); }
.verdict { margin-top: 16px; padding: 14px; border-radius: 10px; background: var(--panel2); border-left: 4px solid var(--uc); }
.verdict p { margin: 0; }
.reveal { margin-top: 14px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.stamp { font-family: var(--display); font-weight: 900; font-size: 2.2rem; letter-spacing: .04em; text-transform: uppercase; padding: 4px 16px; border: 3px solid currentColor; border-radius: 8px; animation: stamp .35s ease-out; }
.stamp.out { color: var(--out); } .stamp.notout { color: var(--notout); } .stamp.uc { color: var(--uc); } .stamp.none { color: var(--muted); }
@keyframes stamp { from { transform: scale(1.4) rotate(-4deg); opacity: 0; } to { transform: none; opacity: 1; } }

/* charts */
.chart { width: 100%; position: relative; }
.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.axis text, .lbl { fill: var(--muted); font: 11px var(--mono); }
.halo { paint-order: stroke; stroke: var(--panel); stroke-width: 8px; stroke-linejoin: round; }
.axis line, .axis path { stroke: var(--line); }
.gridl { stroke: var(--grid); }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: .82rem; color: var(--ink2); margin-top: 10px; align-items: center; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.legend .ramp i { margin-right: 0; border-radius: 0; width: 26px; }
.cell { stroke: var(--panel); stroke-width: 2; }
.cell:hover, .cell:focus { stroke: var(--chalk); }
details { margin-top: 12px; } summary { cursor: pointer; color: var(--ink2); font-size: .86rem; }

/* tables */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .88rem; }
table.data th { text-align: left; font-weight: 600; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.data th[data-sort] { cursor: pointer; } table.data th[data-sort]:hover { color: var(--ink); }
table.data td { padding: 8px 10px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
table.data tr.click { cursor: pointer; } table.data tr.click:hover td { background: var(--panel2); }
td.n { text-align: right; } th.n { text-align: right; }
.tag { font: 600 .72rem var(--mono); padding: 2px 6px; border-radius: 4px; text-transform: uppercase; }
.tag.out { color: var(--out); border: 1px solid var(--out); } .tag.notout { color: var(--notout); border: 1px solid var(--notout); } .tag.uc { color: var(--uc); border: 1px solid var(--uc); }
.best td { color: var(--ink); } tr.ours td { color: var(--ink); font-weight: 600; }
.lbw { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 24px; align-items: start; }
.lbw-stat .v { font-family: var(--display); font-size: 4rem; font-weight: 900; line-height: 1; color: var(--uc); }
.lbw-stat p { color: var(--ink2); }

.method p { color: var(--ink2); } .method b { color: var(--ink); }
.eq { background: var(--panel2); padding: 2px 6px; border-radius: 4px; color: var(--ink); font-size: .85rem; white-space: nowrap; }
.attr { margin-top: 32px; font-size: .85rem; color: var(--muted); }
.tip { position: fixed; z-index: 40; pointer-events: none; background: #0b0f0dee; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: .82rem; max-width: 280px; box-shadow: 0 8px 24px #0008; }
.tip b { color: var(--ink); }
.noscript { padding: 24px; }

@media (max-width: 980px) {
  .hero, .room, .grid2, .grid3, .lbw { grid-template-columns: minmax(0, 1fr); }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  nav { display: none; }
}
@media (max-width: 560px) {
  .sec-head { grid-template-columns: 1fr; gap: 4px; }
  .eqrow { grid-template-columns: 1fr; }
  .tiles .v { font-size: 2rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .tiles li { opacity: 1; } .track { stroke-dashoffset: 0; }
}

/* primer + cheat sheet */
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.steps li { counter-increment: s; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; color: var(--ink2); }
.steps li::before { content: counter(s); display: block; font: 900 2rem/1 var(--display); color: var(--uc); margin-bottom: 8px; }
.steps b { color: var(--ink); display: block; margin-bottom: 4px; font-size: 1.02rem; }
table.policy td, table.policy th { padding: 12px 14px; }
table.policy td.n b { font-family: var(--display); font-size: 1.5rem; font-weight: 800; color: var(--ink); }
table.policy td:first-child { color: var(--ink); font-weight: 600; }
@media (max-width: 980px) { .steps { grid-template-columns: minmax(0, 1fr); } }

/* declutter pass: calmer hero, more air, two-page split */
.hero { padding-top: clamp(48px, 9vw, 120px); padding-bottom: 48px; }
.hero h1 { font-size: clamp(2.6rem, 4.6vw, 4.4rem); }
.lede { font-size: 1.3rem; max-width: 34ch; margin: 26px 0 32px; line-height: 1.45; }
.tiles { grid-template-columns: repeat(3, 1fr); margin-top: 24px; }
.tiles .k { font-size: .95rem; }
.sec { padding-top: 88px; padding-bottom: 88px; }
.sec-head { margin-bottom: 36px; }
.sec-head p { font-size: 1.08rem; max-width: 60ch; }
.steps li { padding: 20px 22px; line-height: 1.5; }
.takeaway { margin-top: 28px; }
.threshold .p small { display: block; margin-top: 8px; font-size: .3em; }
.eqrow div[title] { cursor: help; }
.verdict { padding: 14px 16px; }
nav .nav-cta { color: var(--ink); border: 1px solid var(--line); }
.foot { text-align: center; }
.foot .attr { margin-top: 20px; }
.page-intro { border-top: 0; padding-bottom: 24px; }
.page-intro h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 900; text-transform: uppercase; line-height: .95; }
.page-intro .lede { max-width: 60ch; }
@media (max-width: 980px) {
  .tiles { grid-template-columns: minmax(0, 1fr); }
  .sec { padding-top: 56px; padding-bottom: 56px; }
  nav { display: flex; } nav a:not(.nav-cta) { display: none; }
}