/* PandemicBench: black, white and one very contagious green. */

@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: italic; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 600; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 700; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Serif"; font-style: normal; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-serif-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Serif"; font-style: normal; font-weight: 600; font-display: swap; src: url("/assets/fonts/ibm-plex-serif-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Serif"; font-style: italic; font-weight: 400; font-display: swap; src: url("/assets/fonts/ibm-plex-serif-latin-400-italic.woff2") format("woff2"); }

:root {
  /* type scale: 11 / 12.5 / 14 / 19 / 24 (+ hero clamp) */
  --fs-xs: 11px;
  --fs-sm: 12.5px;
  --fs-md: 14px;
  --fs-lg: 19px;
  /* two radii: controls and panels */
  color-scheme: dark;
  --bg: #0a0a0a;
  --bg-2: #0e0e0e;
  --panel: #111111;
  --panel-2: #151515;
  --footer: #141414;
  --line: #262626;
  --line-2: #1d1d1d;
  --line-3: #333333;
  --text: #fafafa;
  --text-2: #e5e5e5;
  --muted: #a3a3a3;
  --dim: #8a8a8a;
  --faint: #5c5c5c;
  --green: #00ff00;
  --green-soft: rgba(0, 255, 0, 0.1);
  --green-line: rgba(0, 255, 0, 0.35);
  --green-glow: 0 0 18px rgba(0, 255, 0, 0.35);
  /* Pandemic Safety Levels: white (contained) -> green (everywhere). */
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --serif: "IBM Plex Serif", Georgia, Cambria, serif;
  --measure: 60em;
  --wrap: 1080px;
  --gutter: 24px;
  --radius: 10px;
  --header-h: 60px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; } }
body {
  margin: 0; background: var(--bg); color: var(--text-2);
  min-height: 100svh; display: flex; flex-direction: column;
  font: 400 14px/1.7 var(--mono); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  font-variant-numeric: tabular-nums;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-color: var(--faint); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--text); text-decoration-color: var(--green); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 3px; }
::selection { background: var(--green); color: #000; }
sub { font-size: 0.72em; line-height: 0; vertical-align: -0.22em; }
code { font: inherit; color: var(--text); background: var(--panel-2); border: 1px solid var(--line); border-radius: 5px; padding: 0.05em 0.35em; font-size: 0.92em; }
strong { color: var(--text); font-weight: 500; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }
.wrap { width: 100%; max-width: calc(var(--wrap) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -48px; z-index: 100; background: var(--green); color: #000; padding: 8px 12px; border-radius: 6px; text-decoration: none; font-weight: 500; }
.skip:focus { top: 10px; }
.nowrap { white-space: nowrap; }

/* ---------- header ---------- */
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes pulse { 50% { opacity: 0.35; } }

.site-header {
  position: sticky; top: 0; z-index: 40; background: rgba(10, 10, 10, 0.86);
  backdrop-filter: saturate(140%) blur(10px); -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line-2);
}
.site-header .wrap { display: flex; align-items: center; gap: 22px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); flex: none; }
.brand .logo-mark { color: var(--green); transition: transform 0.6s cubic-bezier(.2,.8,.2,1); }
.brand:hover .logo-mark { transform: rotate(36deg); }
.wordmark { font: 600 18px/1 var(--serif); letter-spacing: -0.01em; color: var(--text); }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a {
  text-decoration: none; color: var(--muted); font-size: 12.5px; padding: 7px 10px; border-radius: 7px;
  letter-spacing: 0.01em; transition: color 0.15s, background 0.15s;
}
.nav a:hover { color: var(--text); background: var(--panel-2); }
.nav a[aria-current="page"] { color: var(--green); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); color: var(--text-2); border-radius: 8px; padding: 7px 10px; font: 500 12px var(--mono); cursor: pointer; }
@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: var(--header-h); flex-direction: column; align-items: stretch;
    background: #0b0b0b; border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 14px; gap: 0; margin: 0;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 4px; font-size: 14px; border-bottom: 1px solid var(--line-2); border-radius: 0; }
  .nav a:last-child { border-bottom: 0; }
  .nav.open::after { content: ""; position: fixed; inset: 0; top: 100%; background: rgba(0, 0, 0, 0.6); z-index: -1; }
}

/* ---------- hero ---------- */
.hero { position: relative; padding: 64px 0 34px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--line-2) 1px, transparent 1px), linear-gradient(90deg, var(--line-2) 1px, transparent 1px);
  background-size: 28px 28px; background-position: -1px -1px;
  mask-image: radial-gradient(ellipse 70% 90% at 78% 10%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 90% at 78% 10%, #000 10%, transparent 70%);
  opacity: 0.7;
}
.hero .wrap { position: relative; }
.eyebrow { font-size: var(--fs-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); margin: 0 0 18px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.eyebrow .pill { color: var(--green); border: 1px solid var(--green-line); border-radius: 999px; padding: 2px 9px; letter-spacing: 0.08em; }
h1, h2, h3, h4 { color: var(--text); font-weight: 400; margin: 0; }
.hero h1 { font: 400 clamp(21px, 2.6vw, 29px)/1.32 var(--mono); letter-spacing: -0.015em; max-width: 28em; color: var(--text); text-wrap: balance; }

.lede { max-width: 46em; margin: 20px 0 0; color: var(--text-2); font-size: 14px; line-height: 1.8; }

/* ---------- section scaffolding ---------- */
.section { padding: 46px 0; border-top: 1px solid var(--line-2); }
.section.tight { padding: 30px 0; }
.section-head { display: flex; gap: 20px; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; margin-bottom: 22px; }
.section h2 { font: 400 24px/1.25 var(--mono); letter-spacing: -0.015em; }
.section-sub { margin: 8px 0 0; color: var(--muted); max-width: var(--measure); font-size: var(--fs-md); }

.badge { display: inline-block; font: 500 11px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 6px; border-radius: 5px; background: #2a2a2a; color: var(--text-2); vertical-align: 1px; }
.badge.g { background: var(--green); color: #000; }

/* ---------- chart cards ---------- */
.chart { position: relative; margin: 0; }  /* figure has UA side margins */
.chart-head { display: flex; gap: 16px; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; flex-wrap: wrap; }
.chart-title { font: 500 15px/1.35 var(--mono); color: var(--text); margin: 0; }
.chart-sub { font-size: var(--fs-sm); color: var(--dim); margin: 4px 0 0; max-width: var(--measure); line-height: 1.6; }
.tools { display: flex; gap: 6px; flex: none; }
.tool {
  appearance: none; display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; cursor: pointer;
  background: var(--bg-2); border: 1px solid var(--line); color: var(--muted); text-decoration: none;
}
.tool:hover { color: var(--green); border-color: var(--green-line); }
.tool svg { width: 15px; height: 15px; }
.watermark { display: flex; justify-content: flex-end; align-items: center; gap: 7px; margin-top: 10px; font-size: 11px; color: var(--dim); letter-spacing: 0.02em; user-select: none; }
.watermark b { color: var(--dim); font-weight: 500; }
.chart-foot { font-size: var(--fs-sm); color: var(--dim); margin-top: 10px; line-height: 1.65; max-width: var(--measure); }

/* ---------- svg charts ---------- */
.svgchart { width: 100%; height: auto; overflow: visible; font-family: var(--mono); }
.svgchart text { fill: var(--dim); font-size: 11px; }
.svgchart .gridline { stroke: var(--line-2); stroke-width: 1; }
.svgchart .gridline.dash { stroke-dasharray: 2 4; stroke: #2a2a2a; }
.svgchart .axis-title { fill: var(--muted); font-size: 12px; }
.svgchart .pt { cursor: pointer; }
.svgchart .note { fill: var(--muted); font-size: 11px; }
.svgchart .note.g { fill: var(--green); }
.svgchart .wm { fill: #6f6f6f; font-size: 11px; }
@media (max-width: 640px) { .v-desktop { display: none; } .v-mobile { display: block; } }

/* ---------- tooltip ---------- */
.tip {
  position: fixed; z-index: 90; pointer-events: none; max-width: 300px; padding: 10px 12px; border-radius: 9px;
  background: rgba(16, 16, 16, 0.97); border: 1px solid var(--line-3); color: var(--text-2); font-size: 12px; line-height: 1.55;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6); opacity: 0; transform: translateY(4px); transition: opacity 0.12s, transform 0.12s;
}
.tip.on { opacity: 1; transform: none; }
.tip b { color: var(--text); font-weight: 500; }
.tip .tg { color: var(--green); }
.tip .row { display: flex; justify-content: space-between; gap: 18px; }
.tip .row span:first-child { color: var(--dim); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; max-width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line-2); white-space: nowrap; }
thead th { background: #151515; vertical-align: top; border-bottom: 1px solid var(--line); color: var(--dim); font-weight: 400; font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; }
thead th .u { display: block; letter-spacing: 0.02em; text-transform: none; color: var(--dim); font-size: 11px; margin-top: 2px; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: rgba(255, 255, 255, 0.045); }
td.num, th.num { text-align: right; }
th[data-sort] { cursor: pointer; user-select: none; }
th[data-sort]:hover { color: var(--text); }
th[data-sort]::after { content: " ↕"; color: var(--faint); font-size: 10px; }
th[data-sort]:hover::after { color: var(--muted); }
th[aria-sort="descending"]::after { content: " ▼"; color: var(--green); font-size: 10px; }
th[aria-sort="ascending"]::after { content: " ▲"; color: var(--green); font-size: 10px; }
tr.baseline td { color: var(--muted); background: rgba(255, 255, 255, 0.015); }
tbody tr.baseline:first-of-type td { border-top: 1px solid var(--line-3); }
.rank { color: var(--dim); width: 42px; text-align: right; padding-right: 14px; }

/* lab monogram */

/* PSL badges */

/* heatmap */

/* ---------- filters ---------- */
.dl { display: inline-flex; gap: 8px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 500 12.5px/1 var(--mono); text-decoration: none; cursor: pointer;
  border-radius: 999px; padding: 10px 16px; min-height: 37px; border: 1px solid var(--line-3); color: var(--text); background: #111; transition: border-color .15s, background .15s, box-shadow .15s;
}
.btn:hover { border-color: var(--green-line); color: var(--green); }
.btn.primary { background: var(--green); color: #000; border-color: var(--green); }
.btn.primary:hover { box-shadow: var(--green-glow); color: #000; }
.btn.sm { padding: 7px 12px; font-size: 11.5px; }
.btn svg { width: 14px; height: 14px; }

/* ---------- cards / grids ---------- */
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); } }

/* suite cards */

/* ---------- prose (methodology, about, reports) ---------- */
.prose { font: 400 17px/1.7 var(--serif); color: var(--text-2); max-width: 36em; }
.prose p { margin: 0 0 1.05em; }
.prose h2 { font: 500 var(--fs-lg)/1.3 var(--mono); letter-spacing: -0.01em; color: var(--text); margin: 2.2em 0 0.7em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font: 600 17px/1.35 var(--serif); margin: 1.5em 0 0.4em; color: var(--text); }
.prose li { margin: 0.3em 0; }
.prose li::marker { color: var(--faint); }
.prose a { color: var(--text); text-decoration-color: var(--green-line); }
.prose a:hover { text-decoration-color: var(--green); }
.prose table { font-family: var(--mono); font-size: 12.5px; margin: 0.6em 0 1.6em; }
.prose .table-wrap { margin: 0.6em 0 1.6em; }
.prose .table-wrap table { margin: 0; }
.prose td { white-space: normal; vertical-align: top; }
.prose td:first-child { white-space: nowrap; }
.formula { font: 400 13px/1.9 var(--mono); background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; color: var(--text); overflow-x: auto; margin: 0.6em 0 1.4em; white-space: pre; }
.callout { font: 400 13px/1.7 var(--mono); border: 1px solid var(--green-line); background: rgba(0, 255, 0, 0.04); border-radius: var(--radius); padding: 14px 16px; color: var(--text-2); margin: 1.2em 0; }
.callout b { color: var(--green); font-weight: 500; }
.prose { min-width: 0; }
@media (max-width: 900px) { .doc { grid-template-columns: minmax(0, 1fr); } .toc { display: none; } }

/* ---------- simulator ---------- */
.sim-controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-bottom: 18px; }
.field { display: grid; gap: 6px; font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); }
.field select { min-width: 230px; text-transform: none; letter-spacing: 0; font-size: 13px; }
.sim { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr); gap: 16px; }
@media (max-width: 900px) { .sim { grid-template-columns: minmax(0, 1fr); } }
.term { background: #070707; border: 1px solid var(--line); border-radius: var(--radius); display: flex; flex-direction: column; min-height: 132px; max-height: 560px; overflow: hidden; transition: min-height .25s ease; }
.term.running { min-height: 420px; }
.term .bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--line-2); font-size: 11px; color: var(--dim); }
.term .bar i { width: 9px; height: 9px; border-radius: 50%; background: #2a2a2a; }
.term .bar span { margin-left: 6px; }
.term .out { flex: 1; overflow-y: auto; padding: 12px 14px; font-size: 12px; line-height: 1.65; color: var(--text-2); scrollbar-width: thin; scrollbar-color: #333 transparent; }
.term .out p { margin: 0 0 6px; white-space: pre-wrap; overflow-wrap: anywhere; }
.term .out .ts { color: var(--dim); margin-right: 8px; }
.term .out .tool { all: unset; color: #9ad79a; }
.term .out .warn { color: var(--green); }
.term .out .say { color: var(--text); }
.term .out .think { color: var(--dim); font-style: italic; }
.mapcard { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); padding: 14px; display: grid; gap: 12px; min-width: 0; }
.mapcard canvas { width: 100%; height: auto; display: block; aspect-ratio: 180 / 68; }
.counters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; border-top: 1px solid var(--line-2); padding-top: 12px; }
.counters > div { min-width: 0; padding: 0; border: 0; }
.counters .k { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); }
.counters .v { font: 500 18px/1.2 var(--mono); color: var(--text); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.counters .v.g { color: var(--green); }
@media (max-width: 520px) { .counters { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.sim-result { display: none; margin-top: 16px; border: 1px solid var(--green-line); border-radius: var(--radius); background: rgba(0,255,0,.04); padding: 18px 20px; }
.sim-result.on { display: block; animation: rise .4s ease-out; }
.sim-result h2 { font: 600 22px/1.3 var(--serif); }
.sim-result p { margin: 8px 0 14px; color: var(--text-2); }
.sim-result .actions { display: flex; flex-wrap: wrap; gap: 10px; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

/* ---------- footer ---------- */
.site-footer { background: var(--footer); border-top: 1px solid var(--line-2); padding: 52px 0 30px; font-size: 12.5px; color: var(--muted); }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr; gap: 28px; } }
.site-footer p { margin: 0 0 8px; line-height: 1.7; }
.legal { margin-top: 38px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px 30px; flex-wrap: wrap; font-size: 11.5px; color: var(--dim); }
.legal p { margin: 0; max-width: 64em; }

/* Inline arrow glyphs inside copy and pill links. */
.btn svg { flex: none; }

/* Keep the simulator's four counters on a shared baseline. */
.counters > div { display: flex; flex-direction: column; gap: 3px; }
.counters .k { min-height: 0; }

/* ================= simplified layout (v1.1) ================= */

/* hero stat line, replacing the old card grid */

/* the one green-number class used across tables and stats */
.zero { color: var(--green); }
td.zero { font-weight: 500; }

/* evaluations list */
.evals { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 860px) { .evals { grid-template-columns: minmax(0, 1fr); } }
.eval { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.eval-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.eval h2 { font: 500 15px/1.35 var(--mono); margin: 0; }
.eval .parody { margin: -6px 0 0; font-size: 11px; color: var(--dim); }
.eval-blurb { margin: 0; color: var(--muted); font-size: 13px; }
.eval .worst { margin: 0; font-size: 12.5px; color: var(--muted); }
.eval .worst b { color: var(--green); font-weight: 500; }
.eval .stats { display: flex; gap: 22px; flex-wrap: wrap; font-size: 11.5px; color: var(--dim); margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line-2); }
.eval .stats b { color: var(--text); font-weight: 400; }
.eval .ex { border-left: 2px solid var(--green-line); padding: 2px 0 2px 12px; color: var(--text-2); font-family: var(--serif); font-size: 15px; line-height: 1.45; min-height: 3.6em; }
.eval .ex .who { display: block; font-family: var(--mono); font-size: 11px; color: var(--dim); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 3px; }

/* simplified footer */
.foot-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 12.5px; }
.foot-links a { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; color: var(--muted); }
.foot-links a:hover { color: var(--green); }
.foot-links svg { width: 12px; height: 12px; }
.site-footer { padding: 34px 0 26px; }
.legal { margin-top: 26px; padding-top: 18px; }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
.prose .btn-row { margin: 1.2em 0; }
.prose .btn { font-family: var(--mono); }

/* the index table */

/* ---------- vial easter egg ---------- */
.spores { position: fixed; inset: 0; pointer-events: none; z-index: 80; }
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); z-index: 95; opacity: 0; pointer-events: none;
  background: #0d0d0d; border: 1px solid var(--green-line); box-shadow: 0 12px 40px rgba(0,0,0,.6), var(--green-glow); border-radius: 12px;
  padding: 14px 18px; font-size: 12.5px; color: var(--text-2); width: min(92vw, 460px); transition: opacity .25s, transform .25s;
}
.toast.on { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.toast b { color: var(--green); font-weight: 500; }
.toast small { display: block; color: var(--dim); margin-top: 4px; }
@keyframes infect { 30% { filter: saturate(1.6) brightness(1.08); } }

/* ---------- small screens ---------- */
@media (max-width: 640px) {
  :root {
  /* type scale: 11 / 12.5 / 14 / 19 / 24 (+ hero clamp) */
  --fs-xs: 11px;
  --fs-sm: 12.5px;
  --fs-md: 14px;
  --fs-lg: 19px;
  /* two radii: controls and panels */
  --r-panel: 12px; --gutter: 16px; }
  body { font-size: 13.5px; }
  .hero { padding: 40px 0 26px; }
  .section { padding: 36px 0; }
  .section h2 { font-size: 20px; }
  .prose { font-size: 17px; }
}
@media print {
  .site-header, .site-footer, .tools { display: none !important; }
  body { background: #fff; color: #000; }
}

/* ---------- the answer ---------- */
.answer { display: flex; align-items: flex-start; gap: 28px; margin: 26px 0 0; max-width: 54em; }
.big-zero {
  font: 700 clamp(84px, 13vw, 150px)/0.82 var(--mono); color: var(--green); letter-spacing: 0;
  text-shadow: 0 0 30px rgba(0, 255, 0, 0.42); flex: none;
}
.answer-text { font-size: var(--fs-md); line-height: 1.75; color: var(--muted); padding-top: 10px; }
.answer-text b { color: var(--text); font-weight: 500; }
.hint { margin: 24px 0 0; font-size: var(--fs-sm); color: var(--dim); }
@media (max-width: 640px) {
  .answer { flex-direction: column; align-items: flex-start; gap: 6px; }
  .answer-text { padding-top: 0; font-size: 13px; }
}

/* table: creator as a quiet second column */
td.creator { color: var(--dim); }
tbody tr td b { font-weight: 400; }
tr.baseline td b { color: var(--muted); font-style: italic; }

/* the evaluation zero must stay green; .stats b was overriding it */
.eval .stats b.zero { color: var(--green); }
.sim-result h2 { font: 500 var(--fs-lg)/1.3 var(--mono); }

.eyebrow i { font-style: normal; color: var(--faint); margin: 0 4px; }

/* ---------- ARC-ACHOO puzzle grids ---------- */
.arc { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.arc .g { display: grid; grid-template-columns: repeat(6, 13px); gap: 2px; padding: 6px; background: #111; border: 1px solid var(--line); border-radius: 6px; }
.arc .g i { width: 13px; height: 13px; border-radius: 2px; background: #1e1e1e; }
.arc .g i.p { background: var(--text-2); }
.arc .g i.m { background: #4a4a4a; }
.arc .q { display: grid; place-items: center; width: 102px; height: 102px; border: 1px dashed var(--line-3); border-radius: 6px; color: var(--dim); font-size: 22px; }

/* ---------- 404 ---------- */
.lost { padding: 96px 0 80px; }
.lost h1 { font: 400 clamp(19px, 2.2vw, 24px)/1.35 var(--mono); max-width: 26em; }
.lost h1 em { color: var(--green); font-style: normal; }

/* form controls (simulator) and prose lists (about) */
select {
  appearance: none; background: #0d0d0d url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23a3a3a3' fill='none' stroke-width='1.4'/%3E%3C/svg%3E") no-repeat right 11px center;
  border: 1px solid var(--line-3); color: var(--text-2); font: 400 var(--fs-sm) var(--mono); border-radius: var(--radius); padding: 9px 30px 9px 11px; cursor: pointer;
}
select:hover { border-color: #444; }
.prose ol { margin: 0 0 1.1em; padding-left: 1.4em; }
.prose ol li { margin: 0.4em 0; }
.prose ol li::marker { color: var(--green); font-size: 0.8em; }

/* Columns that drop on a phone so the scores stay on screen. */
/* Columns and labels drop progressively so the scores stay on screen. */
@media (max-width: 820px) { .opt { display: none; } }
@media (max-width: 620px) {
  .opt2, .opt3, thead th .u { display: none; }
  th, td { padding: 10px 7px; }
}
@media (max-width: 400px) { th, td { padding: 9px 5px; font-size: 12px; } }

.answer-text { margin: 0; }
.big-zero { line-height: 0.78; }

/* Touch screens: give links and controls a 44px-tall hit area without
   changing how anything looks on a mouse. */
@media (pointer: coarse), (max-width: 820px) {
  .nav a { padding-block: 12px; }
  .brand { padding-block: 10px; }
  .menu-btn { padding: 11px 14px; }
  /* 44px hit areas without changing the look on a mouse */
  .foot-links { gap: 2px 6px; }
  .foot-links a { padding: 11px 10px; min-width: 44px; justify-content: center; }
  .prose a, .legal a { display: inline-block; padding-block: 9px; }
}

.prose b, .prose strong { font-weight: 600; color: var(--text); }

main { flex: 1 0 auto; }
.site-footer { flex: none; }

/* single page: a quiet tagline beside the wordmark */
.tagline { margin-left: auto; font-size: var(--fs-sm); color: var(--dim); }
@media (max-width: 680px) { .tagline { display: none; } }
.hero h1 em { font-style: normal; color: var(--green); }
.sim-result .actions { gap: 10px; }