/* Fair Test - a science fair display board: foam-board panels on a pale classroom wall, construction-paper cards with
 * tape, a printed title banner. Light and dark share the tokens below. */
:root {
  --wall: #e8eef6; --wall-line: #dbe4f0; --ink: #1d2b45; --muted: #5b6880; --line: #c9d3e2;
  --sheet: #ffffff; --foam: #fbfbf8; --foam-edge: #d9dde4; --hinge: rgba(29, 43, 69, .10);
  --blue: #2f5fd0; --blue-ink: #ffffff; --banner: #23395d; --banner-ink: #ffd166;
  --ok: #d6f0d8; --ok-edge: #3f9b5b; --ok-ink: #1f5e33;
  --fix: #fff0b8; --fix-edge: #d39b14; --fix-ink: #6b4b00;
  --miss: #ffffff; --miss-edge: #d1495b; --miss-ink: #9d2335;
  --sign: #ffe1d6; --sign-edge: #e0703a;
  --tape: rgba(255, 255, 255, .62); --tape-edge: rgba(29, 43, 69, .10);
  --shadow: 0 1px 2px rgba(29, 43, 69, .10), 0 4px 14px rgba(29, 43, 69, .08);
  --radius: 10px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --wall: #111827; --wall-line: #172133; --ink: #e6ebf5; --muted: #9aa7bf; --line: #2c3a52;
  --sheet: #182235; --foam: #1d283d; --foam-edge: #2d3b55; --hinge: rgba(0, 0, 0, .35);
  --blue: #7ea2ff; --blue-ink: #0d1424; --banner: #ffd166; --banner-ink: #1d2b45;
  --ok: #183826; --ok-edge: #5fc282; --ok-ink: #a9e7bd;
  --fix: #3a3013; --fix-edge: #e7b53c; --fix-ink: #f6d98a;
  --miss: #1d283d; --miss-edge: #f06b7c; --miss-ink: #ffb3bd;
  --sign: #3b2418; --sign-edge: #f08a55;
  --tape: rgba(255, 255, 255, .14); --tape-edge: rgba(255, 255, 255, .10);
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 6px 18px rgba(0, 0, 0, .3);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--wall);
  background-image: linear-gradient(var(--wall-line) 1px, transparent 1px), linear-gradient(90deg, var(--wall-line) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--ink); font: 16px/1.5 "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}
a { color: var(--blue); }
code, .mono { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: .88em; }
code { background: var(--foam); border: 1px solid var(--line); border-radius: 5px; padding: 0 4px; white-space: nowrap; }
.hidden { display: none !important; }
.small { font-size: .86rem; }
.muted { color: var(--muted); }
.warn { color: var(--fix-ink); }

/* Header */
.bar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 10px 20px; background: var(--sheet); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.back { color: var(--muted); text-decoration: none; font-size: .9rem; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.1rem; margin-right: auto; }
.logo { width: 28px; height: 28px; }
.lg-side { fill: var(--fix); stroke: var(--ink); stroke-width: 1.4; }
.lg-mid { fill: var(--ok); stroke: var(--ink); stroke-width: 1.4; }
.lg-ln { stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; }
.session { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.pill { display: inline-flex; align-items: center; gap: 6px; border: 1.5px solid var(--line); background: var(--sheet); color: var(--ink); border-radius: 999px; padding: 6px 14px; font: inherit; font-size: .9rem; cursor: pointer; text-decoration: none; }
.pill:hover { border-color: var(--blue); }
.pill.solid { background: var(--blue); color: var(--blue-ink); border-color: var(--blue); font-weight: 600; }
.pill.ghost { cursor: default; }
.pill.tiny { padding: 2px 10px; font-size: .78rem; margin-left: 6px; vertical-align: middle; }
.pill.big { padding: 11px 24px; font-size: 1rem; }
.pill:disabled { opacity: .5; cursor: not-allowed; }
.pill:focus-visible, .chip:focus-visible, .cite:focus-visible, textarea:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

/* Layout */
.wrap { max-width: 1180px; margin: 0 auto; padding: 18px 20px 40px; }
.hero { padding: 18px 0 8px; }
.kicker { display: inline-block; margin: 0 0 6px; padding: 3px 10px; background: var(--banner); color: var(--banner-ink); border-radius: 4px; font-weight: 700; font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
h1 { font-family: "Chalkboard SE", "Marker Felt", "Trebuchet MS", "Avenir Next", sans-serif; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.08; margin: 6px 0 10px; }
.hl { background: linear-gradient(transparent 58%, var(--fix) 58%); padding: 0 4px; }
.lede { max-width: 760px; font-size: 1.05rem; margin: 0 0 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chips-label { color: var(--muted); font-size: .9rem; }
.chip { border: 1.5px dashed var(--line); background: var(--sheet); color: var(--ink); border-radius: 8px; padding: 6px 12px; font: inherit; font-size: .9rem; cursor: pointer; }
.chip.on { border-style: solid; border-color: var(--blue); box-shadow: inset 0 -3px 0 var(--blue); }
.two { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; margin-top: 14px; }
.twocol { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.sheet { background: var(--sheet); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin-top: 16px; box-shadow: var(--shadow); min-width: 0; }
.two .sheet { margin-top: 0; }
h2 { font-size: 1.2rem; margin: 0 0 8px; display: flex; align-items: center; gap: 8px; }
h3 { font-size: 1rem; margin: 16px 0 6px; }
.stepno { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--banner); color: var(--banner-ink); font-size: .85rem; flex: none; }
textarea, input, select { width: 100%; font: inherit; color: var(--ink); background: var(--foam); border: 1.5px solid var(--line); border-radius: 8px; padding: 8px 10px; }
#plan { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: .86rem; line-height: 1.55; resize: vertical; }
.drop.over textarea { border-color: var(--blue); border-style: dashed; }
.drop-row { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-top: 6px; align-items: center; }
.filebtn { color: var(--blue); cursor: pointer; text-decoration: underline; font-size: .86rem; }
.filebtn input { display: none; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
.f { display: flex; flex-direction: column; gap: 4px; font-size: .88rem; font-weight: 600; }
.f.wide { grid-column: 1 / -1; }
.opt { font-weight: 400; color: var(--muted); font-size: .8rem; }
.countdown { margin-top: 12px; padding: 10px 12px; border-radius: 8px; background: var(--ok); border-left: 5px solid var(--ok-edge); }
.countdown b { font-size: 1.5rem; margin-right: 4px; }
.countdown.soon { background: var(--fix); border-color: var(--fix-edge); }
.countdown.past { background: var(--miss); border: 1.5px dashed var(--miss-edge); border-left-width: 5px; }
.notes { list-style: none; padding: 0; margin: 8px 0 0; }
.notes li { padding: 6px 10px; border-radius: 6px; margin-bottom: 4px; font-size: .9rem; background: var(--foam); border-left: 4px solid var(--line); }
.notes li.warn { border-color: var(--fix-edge); }
.notes li.bad { border-color: var(--miss-edge); color: var(--miss-ink); }
.notes li.ok { border-color: var(--ok-edge); }
.notes li.info { border-color: var(--blue); }

/* The board */
.board-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.verdict-tag { font-weight: 700; font-size: .85rem; padding: 3px 10px; border-radius: 999px; border: 1.5px solid var(--line); }
.verdict-tag:empty { display: none; }
.v-ready { background: var(--ok); border-color: var(--ok-edge); color: var(--ok-ink); }
.v-tweak { background: var(--fix); border-color: var(--fix-edge); color: var(--fix-ink); }
.v-rethink { background: var(--miss); border-color: var(--miss-edge); color: var(--miss-ink); }
.boardbox { margin-top: 10px; }
.board-empty { padding: 30px; text-align: center; color: var(--muted); border: 2px dashed var(--line); border-radius: var(--radius); }
.board { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr) minmax(0, 1fr); align-items: stretch; padding: 14px 6px 18px; perspective: 1400px; }
.panel { background: var(--foam); border: 1px solid var(--foam-edge); padding: 14px 12px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.panel.pl { border-radius: 8px 0 0 8px; transform: rotateY(9deg); transform-origin: right center; box-shadow: inset -14px 0 18px -14px var(--hinge), var(--shadow); }
.panel.pc { border-left: none; border-right: none; box-shadow: var(--shadow); z-index: 1; }
.panel.pr { border-radius: 0 8px 8px 0; transform: rotateY(-9deg); transform-origin: left center; box-shadow: inset 14px 0 18px -14px var(--hinge), var(--shadow); }
.banner { background: var(--banner); color: var(--banner-ink); border-radius: 6px; padding: 12px 14px; text-align: center; box-shadow: 0 3px 0 rgba(0, 0, 0, .18); }
.banner-t { font-family: "Chalkboard SE", "Marker Felt", "Trebuchet MS", sans-serif; font-weight: 700; font-size: 1.25rem; line-height: 1.2; overflow-wrap: anywhere; }
.pcard { position: relative; background: var(--sheet); border: 1.5px solid var(--line); border-radius: 4px; padding: 14px 12px 10px; box-shadow: 0 2px 6px rgba(29, 43, 69, .10); min-width: 0; overflow-wrap: anywhere; }
.pcard::before { content: ""; position: absolute; top: -8px; left: 50%; width: 58px; height: 16px; margin-left: -29px; background: var(--tape); border: 1px solid var(--tape-edge); transform: rotate(-3deg); }
.panel .pcard:nth-child(odd) { transform: rotate(-.5deg); }
.panel .pcard:nth-child(even) { transform: rotate(.45deg); }
.pcard.s-ok { background: var(--ok); border-color: var(--ok-edge); }
.pcard.s-fix { background: var(--fix); border-color: var(--fix-edge); }
.pcard.s-missing { background: var(--miss); border: 2px dashed var(--miss-edge); }
.pcard.later { background: transparent; border: 2px dashed var(--foam-edge); box-shadow: none; }
.pcard.later::before { display: none; }
.pcard.flash { animation: flash 1.2s ease; }
@keyframes flash { 0%, 100% { box-shadow: 0 2px 6px rgba(29, 43, 69, .10); } 30% { box-shadow: 0 0 0 5px var(--blue); } }
.pc-h { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 6px; }
.pcard h4 { margin: 0; font-size: .95rem; }
.pstamp { flex: none; font-size: .7rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; padding: 2px 7px; border-radius: 3px; border: 1.5px solid currentColor; transform: rotate(-2deg); }
.pstamp.s-ok { color: var(--ok-ink); }
.pstamp.s-fix { color: var(--fix-ink); }
.pstamp.s-missing { color: var(--miss-ink); }
.pc-text { margin: 0 0 6px; font-style: italic; font-size: .92rem; }
.pc-empty { margin: 0; color: var(--muted); font-size: .88rem; }
.pc-why { margin: 6px 0 0; font-size: .88rem; }
.pc-try { margin: 6px 0 0; font-size: .88rem; padding: 6px 8px; background: rgba(255, 255, 255, .45); border-radius: 4px; }
:root[data-theme="dark"] .pc-try { background: rgba(0, 0, 0, .22); }
.pc-flag { margin: 6px 0 0; font-size: .82rem; color: var(--miss-ink); }
.pc-ok { margin: 4px 0 0; font-size: .88rem; }
.pc-reads { margin: 6px 0 0; padding-left: 18px; font-size: .84rem; }
.pc-reads li { margin-bottom: 3px; }
.pc-steps { margin: 0; padding-left: 20px; font-size: .86rem; }
.rack { display: flex; flex-direction: column; gap: 6px; }
.rk-row { display: grid; grid-template-columns: 7.2em minmax(0, 1fr); gap: 8px; align-items: start; background: var(--sheet); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; }
.rk-row.bad { border: 1.5px solid var(--miss-edge); }
.rk-row.empty .rk-v { color: var(--muted); font-style: italic; }
.rk-k { font-weight: 700; font-size: .76rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.rk-row.bad .rk-k { color: var(--miss-ink); }
.rk-v { font-size: .88rem; min-width: 0; }
.rk-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.lock { display: inline-block; font-size: .78rem; padding: 1px 7px; border-radius: 999px; background: var(--foam); border: 1px solid var(--line); }
.lock.more { font-weight: 700; }
.rk-control { margin: 0; color: var(--muted); }
.tgrid { overflow-x: auto; }
.tg { border-collapse: collapse; font-size: .78rem; }
.tg th { text-align: left; padding: 2px 8px 2px 0; font-weight: 600; white-space: nowrap; max-width: 9em; overflow: hidden; text-overflow: ellipsis; }
.tg td { width: 22px; height: 18px; border: 1.5px solid var(--ink); opacity: .55; background: var(--sheet); }
.tg-cap { margin: 4px 0 0; }
.slips { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.slip { background: var(--sign); border-left: 5px solid var(--sign-edge); border-radius: 4px; padding: 6px 9px; font-size: .86rem; display: flex; flex-direction: column; gap: 2px; }
.slip .before { color: var(--muted); }
.slips li.none { background: none; border: none; padding: 0; color: var(--muted); }

/* Flags under the board */
.flags h3 { margin-top: 18px; }
.readflags { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.readflags li { font-size: .9rem; padding: 5px 8px; border-radius: 6px; background: var(--foam); }
.readflags .lv { display: inline-block; min-width: 5.4em; font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; margin-right: 6px; }
.readflags .lvp { font-weight: 600; margin-right: 4px; }
.readflags .lvp::after { content: ":"; }
.lv-missing .lv, .pc-reads .lv-missing { color: var(--miss-ink); }
.lv-fix .lv, .pc-reads .lv-fix { color: var(--fix-ink); }
.lv-signoff .lv, .pc-reads .lv-signoff { color: var(--sign-edge); }
.lv-info .lv { color: var(--blue); }
.readflags li.ok, .readflags li.none { color: var(--muted); }

/* Ask, progress */
.gate { margin: 8px 0 0; padding: 10px 12px; background: var(--foam); border-left: 4px solid var(--blue); border-radius: 6px; }
.runrow { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 10px; }
.ptitle { font-weight: 700; margin: 0 0 8px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 3px; }
.step { color: var(--muted); font-size: .92rem; }
.step.active { color: var(--ink); font-weight: 600; }
.step.done { color: var(--ok-ink); }
.step-ic { display: inline-block; width: 1.2em; font-family: Menlo, monospace; }
.raw { white-space: pre-wrap; overflow-x: auto; max-height: 380px; font-size: .8rem; background: var(--foam); padding: 10px; border-radius: 6px; }

/* Result */
.rhead { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.rhead h2 { margin: 0; }
.stamp { font-weight: 800; text-transform: uppercase; letter-spacing: .05em; font-size: .85rem; padding: 4px 12px; border: 2.5px solid var(--line); border-radius: 4px; transform: rotate(-2deg); }
.stamp.v-ready { color: var(--ok-ink); border-color: var(--ok-edge); background: var(--ok); }
.stamp.v-tweak { color: var(--fix-ink); border-color: var(--fix-edge); background: var(--fix); }
.stamp.v-rethink { color: var(--miss-ink); border-color: var(--miss-edge); background: var(--miss); }
.summary { font-size: 1.02rem; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.chk { border: 1px solid var(--line); border-left: 5px solid var(--line); border-radius: 6px; padding: 8px 12px; background: var(--foam); }
.chk.s-ok { border-left-color: var(--ok-edge); }
.chk.s-fix { border-left-color: var(--fix-edge); }
.chk.s-missing { border-left-color: var(--miss-edge); }
.chk p { margin: 4px 0 0; font-size: .92rem; }
.chk-h { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.cite { font: inherit; font-weight: 700; background: none; border: none; padding: 0; color: var(--blue); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.said { font-style: italic; color: var(--muted); }
.said.unq { text-decoration: line-through wavy var(--miss-edge); }
.try { padding: 5px 8px; background: var(--sheet); border-radius: 4px; }
.rewrite { margin-top: 12px; padding: 10px 14px; background: var(--ok); border: 1.5px solid var(--ok-edge); border-radius: 6px; }
.rewrite h3 { margin-top: 0; }
.rewrite p { margin: 0; font-size: 1.02rem; }
.checklist { padding-left: 4px; list-style: none; margin: 0; }
.checklist li { margin-bottom: 4px; }
.checklist label { display: flex; gap: 8px; align-items: flex-start; font-size: .92rem; }
.checklist input { width: auto; margin-top: 4px; }
.lines-plain { margin: 0; padding-left: 18px; font-size: .92rem; }
.recon h3 { margin-top: 16px; }

/* Exports, history, footer, toasts */
.tools { display: flex; gap: 8px; flex-wrap: wrap; margin: 6px 0; }
.hist { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 6px; }
.hrow { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--foam); }
.hinfo { display: flex; flex-direction: column; margin-right: auto; min-width: 0; overflow-wrap: anywhere; }
.hist li.none { color: var(--muted); font-size: .9rem; }
.foot { max-width: 1180px; margin: 0 auto; padding: 10px 20px 40px; color: var(--muted); font-size: .86rem; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(380px, calc(100vw - 32px)); }
.toast { background: var(--sheet); border: 1px solid var(--line); border-left: 5px solid var(--ok-edge); border-radius: 8px; padding: 10px 12px; box-shadow: var(--shadow); font-size: .9rem; transition: opacity .5s; }
.toast.err { border-left-color: var(--miss-edge); }
.toast.gone { opacity: 0; }

@media (max-width: 900px) {
  .two { grid-template-columns: 1fr; }
  .board { grid-template-columns: 1fr; gap: 0; padding: 6px 0; perspective: none; }
  .panel.pl, .panel.pr, .panel.pc { transform: none; border: 1px solid var(--foam-edge); border-radius: 0; box-shadow: var(--shadow); }
  .panel.pl { border-radius: 8px 8px 0 0; }
  .panel.pr { border-radius: 0 0 8px 8px; }
  .panel.pc { border-top: 3px solid var(--hinge); border-bottom: 3px solid var(--hinge); }
}
@media (max-width: 600px) {
  .wrap { padding: 12px 16px 32px; }
  .bar { padding: 8px 16px; gap: 8px; }
  .back { display: none; }
  .twocol, .grid { grid-template-columns: 1fr; }
  .sheet { padding: 14px; }
  .rk-row { grid-template-columns: 1fr; gap: 2px; }
  code { white-space: normal; }
}

/* Docs pages (api.html, tokens.html) */
.doc { max-width: 900px; margin: 0 auto; padding: 24px 20px 48px; }
.doc h1 { font-size: 2rem; line-height: 1.2; }
.doc h2 { font-size: 1.35rem; margin-top: 32px; display: block; }
.doc h3 { font-size: 1.05rem; margin-top: 22px; }
.doc pre { background: var(--foam); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow-x: auto; font: .8rem/1.45 "SF Mono", Menlo, Consolas, monospace; max-width: 100%; }
.doc pre code { background: none; border: none; padding: 0; white-space: pre; }
.doc table { border-collapse: collapse; width: 100%; font-size: .9rem; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc td code { white-space: normal; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin: 12px 0 0; }
.tab { font: inherit; font-size: .8rem; padding: 4px 10px; border: 1px solid var(--line); background: var(--sheet); color: var(--ink); border-radius: 6px 6px 0 0; cursor: pointer; }
.tab.active { background: var(--banner); color: var(--banner-ink); border-color: var(--banner); }
.codegroup pre { margin-top: 0; border-top-left-radius: 0; }
.statebox { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; background: var(--sheet); }
.statebox p { margin: 4px 0 0; }
.tokenrow { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.tokenbox { font: .85rem "SF Mono", Menlo, Consolas, monospace; background: var(--foam); border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; word-break: break-all; width: 100%; }

.since { margin: 6px 0 0; padding: 6px 10px; border-left: 3px solid var(--ok-edge); background: var(--ok); border-radius: 4px; }
@media print {
  .bar, .hero, .two, #parseNotes, .ask, .progress-card, #how, #rawResult, .exports, .history, .foot, .toasts, .pill { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
  .sheet { box-shadow: none !important; border: 0 !important; break-inside: avoid; }
  .boardsec { break-after: page; }
  .board { perspective: none !important; }
  .panel.pl, .panel.pr, .panel.pc { transform: none !important; }
}