/* eTendering, Issue #1. The comic look of the stall backdrop: navy and halftone, gold lettering, cream paper panels. */

@font-face { font-family: Bangers; font-weight: 400; font-display: swap; src: url(../fonts/bangers-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: Sora; font-weight: 400; font-display: swap; src: url(../fonts/sora-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: Sora; font-weight: 600; font-display: swap; src: url(../fonts/sora-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: Sora; font-weight: 700; font-display: swap; src: url(../fonts/sora-latin-700-normal.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-display: swap; src: url(../fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 500; font-display: swap; src: url(../fonts/jetbrains-mono-latin-500-normal.woff2) format("woff2"); }

:root {
  --navy: #10305c;
  --navy-deep: #0a1d3b;
  --ink: #111111;
  --gold: #f5b700;
  --gold-deep: #c98a00;
  --cyan: #3cc8f0;
  --blue-shadow: #1f7fc4;
  --red: #dd2c3a;
  --green: #1d8f4e;
  --cream: #fdf4dc;
  --paper: #fffaf0;
  --yellow: #ffd84a;
  --muted: #4b4a45;
  --comic: Bangers, "Arial Black", Impact, sans-serif;
  --sans: Sora, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --page: min(100% - 32px, 720px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 400 16.5px/1.6 var(--sans);
  color: var(--ink);
  background-color: var(--navy);
  background-image:
    radial-gradient(circle at 50% 0%, rgb(60 200 240 / .12), transparent 60%),
    radial-gradient(rgb(255 255 255 / .07) 1.4px, transparent 1.6px);
  background-size: auto, 14px 14px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 16px;
  background: var(--navy-deep);
  border-bottom: 3px solid var(--ink);
  color: #fff;
}
.topbar img { width: 30px; height: 30px; }
.topbar b { font: 400 22px/1 var(--comic); letter-spacing: .03em; color: var(--gold); }
.topbar .issue { margin-left: auto; font: 400 15px/1 var(--comic); letter-spacing: .06em; background: var(--gold); color: var(--ink); padding: 5px 8px 4px; border: 2px solid var(--ink); }
.topbar .issue span { font: 500 12px var(--mono); letter-spacing: 0; }
.progress { position: absolute; left: 0; bottom: -3px; height: 3px; width: 100%; background: var(--gold); transform-origin: left; transform: scaleX(0); }

/* ---------- comic lettering ---------- */
.letter {
  font-family: var(--comic); font-weight: 400; letter-spacing: .02em; line-height: .95;
  color: var(--gold);
  -webkit-text-stroke: 2px var(--ink); paint-order: stroke fill;
  text-shadow: 4px 4px 0 var(--blue-shadow), 5px 5px 0 var(--ink);
  transform: skew(-7deg);
  margin: 0;
}
.tag {
  display: inline-block;
  font: 400 15px/1 var(--comic); letter-spacing: .06em; text-transform: uppercase;
  color: #fff; background: var(--red); border: 2px solid var(--ink);
  padding: 6px 10px 5px; transform: skew(-7deg);
  box-shadow: 3px 3px 0 var(--ink);
}

/* ---------- cover ---------- */
.cover { position: relative; overflow: hidden; padding: 28px 0 40px; isolation: isolate; }
.cover::before {
  /* speed lines behind the hero */
  content: ""; position: absolute; inset: -40%; z-index: -1;
  background: repeating-conic-gradient(from 0deg at 50% 38%, rgb(255 255 255 / .06) 0deg 3deg, transparent 3deg 9deg);
}
.cover .wrap { width: var(--page); margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.logo img { width: 74px; height: 74px; flex: none; filter: drop-shadow(3px 3px 0 var(--blue-shadow)); }
.logo .letter { font-size: clamp(54px, 15.5vw, 104px); }
.stage { position: relative; display: grid; grid-template-columns: 46% 1fr; align-items: end; margin-top: 18px; }
.stage .hero { width: 100%; height: auto; filter: drop-shadow(0 18px 30px rgb(0 0 0 / .45)); }
.stage .burst {
  position: absolute; z-index: -1; left: 22%; top: 4%; width: 80%; aspect-ratio: 1;
  background: radial-gradient(var(--gold) 1.6px, transparent 1.8px) 0 0 / 9px 9px, rgb(245 183 0 / .16);
  clip-path: polygon(50% 0, 60% 22%, 84% 8%, 76% 34%, 100% 40%, 79% 55%, 96% 78%, 70% 72%, 64% 100%, 50% 80%, 34% 98%, 30% 72%, 4% 80%, 20% 56%, 0 38%, 24% 33%, 16% 8%, 40% 22%);
}
.speech {
  position: relative; align-self: start; margin-top: 8%;
  font: 400 clamp(22px, 6.6vw, 40px)/1.05 var(--comic); letter-spacing: .02em; text-transform: uppercase;
  background: var(--paper); border: 3px solid var(--ink); border-radius: 50% / 46%;
  padding: 18px 16px; text-align: center; transform: rotate(-2deg);
  box-shadow: 4px 4px 0 var(--ink);
}
.speech::after {
  content: ""; position: absolute; left: -16px; bottom: 18%; width: 34px; height: 26px;
  background: var(--paper); border: 3px solid var(--ink); border-right: 0; border-top: 0;
  clip-path: polygon(0 100%, 100% 0, 100% 100%); transform: skewX(30deg);
}
.cover .intro { margin-top: 26px; }

/* ---------- building blocks ---------- */
.caption {
  background: var(--yellow); border: 3px solid var(--ink); box-shadow: 5px 5px 0 var(--ink);
  padding: 14px 16px; margin: 0;
}
.caption p { margin: 0; }
.caption p + p { margin-top: 8px; }
.panel {
  background: var(--cream); border: 3px solid var(--ink); box-shadow: 6px 6px 0 var(--ink);
  padding: 16px; margin: 22px 0 0; position: relative;
}
.panel > h3 { font: 400 22px/1.1 var(--comic); letter-spacing: .04em; margin: 0 0 6px; }
.panel .hint { margin: 0 0 12px; color: var(--muted); font-size: 15px; }
.badge {
  position: absolute; top: -14px; right: 12px;
  font: 500 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .04em;
  padding: 6px 8px; border: 2px solid var(--ink); background: var(--green); color: #fff;
}
.badge.illus { background: #7a7364; }
.badge.toy { background: var(--gold-deep); }

.btn {
  font: 400 19px/1 var(--comic); letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink); background: var(--gold); border: 3px solid var(--ink); box-shadow: 3px 3px 0 var(--ink);
  padding: 11px 14px 9px; cursor: pointer; touch-action: manipulation;
}
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn.alt { background: var(--paper); }
.btn.danger { background: var(--red); color: #fff; }
.btn[disabled] { opacity: .45; cursor: not-allowed; transform: none; box-shadow: 3px 3px 0 var(--ink); }
.row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }

.field { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.input {
  width: 100%; font: 500 18px var(--mono); padding: 10px 12px; color: var(--ink);
  background: #fff; border: 3px solid var(--ink); border-radius: 0;
}
.out { margin-top: 14px; display: grid; gap: 8px; }
.kv { background: #fff; border: 2px solid var(--ink); padding: 8px 10px; }
.kv dt { font: 600 12px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.kv dd { margin: 3px 0 0; font: 400 13.5px/1.45 var(--mono); word-break: break-all; }
.kv.key dd { color: #8a5a00; font-weight: 500; }
.status { margin-top: 12px; padding: 10px 12px; border: 3px solid var(--ink); font-weight: 600; background: #fff; }
.status:empty { display: none; }
.status.good { background: #d9f5e3; }
.status.bad { background: #ffd9dc; }
.mono { font-family: var(--mono); }

/* the hero's punchline under each chapter */
.says { display: flex; align-items: center; gap: 12px; margin-top: 26px; }
.says img { width: 64px; height: 64px; flex: none; border-radius: 50%; background: var(--gold); border: 3px solid var(--ink); }
.says p {
  position: relative; margin: 0; flex: 1;
  font: 400 21px/1.15 var(--comic); letter-spacing: .03em; text-transform: uppercase;
  background: var(--paper); border: 3px solid var(--ink); border-radius: 22px; padding: 12px 14px;
  box-shadow: 3px 3px 0 var(--ink);
}
.says p::before {
  content: ""; position: absolute; left: -12px; top: 50%; width: 16px; height: 16px; margin-top: -8px;
  background: var(--paper); border-left: 3px solid var(--ink); border-bottom: 3px solid var(--ink); transform: rotate(45deg);
}

/* behind the panel: the technical layer */
.deeper { margin-top: 18px; border: 3px solid var(--ink); background: var(--paper); box-shadow: 4px 4px 0 var(--ink); }
.deeper summary {
  list-style: none; cursor: pointer; padding: 11px 14px 9px;
  font: 400 19px/1 var(--comic); letter-spacing: .06em; text-transform: uppercase;
  background: var(--ink); color: var(--gold); display: flex; justify-content: space-between; align-items: center;
}
.deeper summary::-webkit-details-marker { display: none; }
.deeper summary::after { content: "+"; font-size: 26px; line-height: .6; }
.deeper[open] summary::after { content: "\2212"; }
.deeper .body { padding: 6px 16px 14px; font-size: 15.5px; }
.deeper h4 { font: 700 15px var(--sans); margin: 14px 0 4px; }
.deeper p { margin: 6px 0; }
.deeper ul { margin: 6px 0; padding-left: 20px; }
.deeper li { margin: 3px 0; }
code { font: 400 .88em var(--mono); background: #efe6cc; padding: 1px 5px; border-radius: 3px; word-break: break-word; }
pre { margin: 10px 0; padding: 10px 12px; background: var(--ink); color: #e9f7ff; overflow-x: auto; font: 400 13px/1.5 var(--mono); }
pre code { background: none; padding: 0; color: inherit; }

/* ---------- chapters ---------- */
main { width: var(--page); margin: 0 auto; }
.chapter { padding: 56px 0 10px; scroll-margin-top: 50px; }
.chapter > header { margin-bottom: 18px; }
.chapter > header .tag { margin-bottom: 12px; }
.chapter > header .letter { font-size: clamp(40px, 11vw, 64px); color: #fff; text-shadow: 4px 4px 0 var(--blue-shadow), 5px 5px 0 var(--ink); }

.contents { margin-top: 22px; }
.contents ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.contents a { display: flex; gap: 10px; align-items: baseline; text-decoration: none; padding: 7px 4px; border-bottom: 2px dashed rgb(17 17 17 / .2); }
.contents a span { font: 400 18px var(--comic); color: var(--red); min-width: 30px; }
.contents a b { font-weight: 600; }

/* chapter 0: weak spots that flip to their fix */
.spots { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.spot {
  text-align: left; font: 600 14.5px/1.35 var(--sans); color: var(--ink);
  background: #fff; border: 3px solid var(--ink); padding: 12px; min-height: 128px; cursor: pointer;
  display: flex; flex-direction: column; gap: 8px; box-shadow: 3px 3px 0 var(--ink);
}
.spot svg { width: 30px; height: 30px; color: var(--red); }
.spot .fix { display: none; color: var(--green); }
.spot[aria-pressed="true"] { background: #e3f7ea; }
.spot[aria-pressed="true"] .leak { display: none; }
.spot[aria-pressed="true"] .fix { display: block; }
.spot[aria-pressed="true"] svg { color: var(--green); }

/* chapter 2: custodians */
.custodians { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.cust {
  text-align: left; cursor: pointer; background: #fff; border: 3px solid var(--ink); padding: 10px 8px;
  box-shadow: 3px 3px 0 var(--ink); font: 400 12px/1.35 var(--mono); color: var(--ink); min-height: 120px;
}
.cust b { display: block; font: 400 17px/1.05 var(--comic); letter-spacing: .03em; margin-bottom: 6px; }
.cust span { word-break: break-all; color: var(--muted); }
.cust[aria-pressed="true"] { background: var(--yellow); }

/* chapter 3: the Merkle tree */
.tree { display: grid; gap: 8px; margin: 6px 0 4px; }
.tree .lvl { display: grid; gap: 4px; }
.tree .h {
  font: 500 11px/1 var(--mono); text-align: center; padding: 7px 0; background: #fff; border: 2px solid var(--ink);
  white-space: nowrap; overflow: hidden;
}
.tree .h.path { background: #dff4ff; }
.tree .h.bad { background: #ffd0d4; color: #a3000f; }
.tree .h.root { font-size: 13px; padding: 9px 0; }
.tree .lab { font: 600 11px var(--sans); text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-bottom: 2px; }
.leaves { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; margin-top: 12px; }
.leaf {
  text-align: left; cursor: pointer; font: 400 12.5px/1.3 var(--mono); padding: 8px; border: 2px solid var(--ink); background: #fff; color: var(--ink);
}
.leaf i { font-style: normal; font-weight: 500; color: var(--muted); margin-right: 4px; }
.leaf[aria-pressed="true"] { background: var(--yellow); }
.leaf.bad { background: #ffd0d4; }
.published { margin-top: 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* chapter 4: bids and tags */
.tenders { display: flex; gap: 8px; }
.tenders .btn { flex: 1; }
.tenders .btn[aria-pressed="true"] { background: var(--ink); color: var(--gold); }

/* chapter 5: the opening sequence */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; counter-reset: s; }
.steps li { counter-increment: s; display: flex; gap: 10px; align-items: flex-start; padding: 10px; background: #fff; border: 2px solid var(--ink); opacity: .45; transition: opacity .3s, background .3s; }
.steps li::before { content: counter(s); font: 400 20px/1 var(--comic); background: var(--ink); color: var(--gold); min-width: 30px; text-align: center; padding: 5px 0 3px; }
.steps li.done { opacity: 1; }
.steps li.now { opacity: 1; background: var(--yellow); }
.envelopes { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.env { border: 3px solid var(--ink); background: #fff; padding: 10px; text-align: center; font-weight: 600; font-size: 14px; }
.env strong { display: block; font: 400 20px var(--comic); letter-spacing: .04em; margin-top: 4px; }
.env.open strong { color: var(--green); }
.env.shut strong { color: var(--red); }

/* chapter 6: shares table */
.bids { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 10px; }
.bids label { font: 400 17px var(--comic); letter-spacing: .04em; text-align: center; }
.bids input { font-size: 16px; padding: 8px 6px; text-align: center; }
.shares { width: 100%; border-collapse: collapse; margin-top: 12px; font: 400 11.5px var(--mono); table-layout: fixed; }
.shares th, .shares td { border: 2px solid var(--ink); padding: 6px 4px; text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.shares th { font: 400 15px var(--comic); letter-spacing: .04em; background: var(--ink); color: var(--gold); }
.shares td { background: #fff; }
.shares tr.win td { background: #d9f5e3; font-weight: 500; }
.shares td.hidden { color: #9a9384; }
.shares th:first-child, .shares td:first-child { width: 22%; }

/* chapter 7: the checks */
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.checks li { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; background: #fff; border: 2px solid var(--ink); font-size: 14.5px; }
.checks li::before { content: "\25CB"; font: 700 16px/1.3 var(--sans); color: var(--muted); }
.checks li.ok::before { content: "\2713"; color: var(--green); }
.checks li.ok { background: #e9f8ee; }

/* chapter 8: limits */
.limits { display: grid; gap: 12px; }
.limit { background: var(--paper); border: 3px solid var(--ink); box-shadow: 4px 4px 0 var(--ink); padding: 12px 14px; }
.limit h3 { margin: 0 0 4px; font: 400 21px/1.1 var(--comic); letter-spacing: .04em; color: var(--red); }
.limit p { margin: 0; font-size: 15px; }

/* ---------- the end ---------- */
.end { text-align: center; padding: 70px 0 40px; overflow: hidden; }
.end .letter { font-size: clamp(42px, 12vw, 78px); display: block; }
.end .letter + .letter { margin-top: 6px; }
.end .letter.white { color: #fff; }
.end img { width: 86px; height: 86px; margin: 34px auto 10px; }
.end .sign { font: 400 20px var(--comic); letter-spacing: .08em; color: var(--gold); }
.end .sign span { font: 500 15px var(--mono); letter-spacing: 0; }
.fine { color: rgb(255 255 255 / .7); font-size: 13.5px; text-align: center; padding: 0 16px 36px; margin: 0; }

/* ---------- entrance on scroll: the script marks what is still below the fold as pending ---------- */
.reveal { transition: opacity .6s ease, transform .6s cubic-bezier(.2,.8,.2,1); }
.reveal.pending { opacity: 0; transform: translateY(18px) rotate(-.6deg); }

/* ---------- larger screens ---------- */
@media (min-width: 900px) {
  :root { --page: min(100% - 64px, 1040px); }
  body { font-size: 17px; }
  .cover { padding-top: 40px; }
  .cover .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: start; }
  .cover .left { grid-row: span 3; }
  .stage { margin-top: 26px; }
  .chapter { display: grid; grid-template-columns: 1fr 1fr; column-gap: 40px; align-items: start; }
  .chapter > header, .chapter > .caption { grid-column: 1 / -1; }
  .chapter > .panel { grid-column: 1; }
  .chapter > .side { grid-column: 2; }
  .chapter.wide > .panel, .chapter.wide > .side { grid-column: 1 / -1; }
  .spots { grid-template-columns: repeat(4, 1fr); }
  .bids { grid-template-columns: repeat(4, 1fr); }
  .bids input { font-size: 14px; }
  .limits { grid-template-columns: 1fr 1fr; }
  .tree .h { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; }
  .steps li, .btn { transition: none; }
}

/* ---------- 404 ---------- */
.lost { min-height: 100vh; display: grid; place-content: center; justify-items: center; gap: 22px; text-align: center; padding: 32px 0; }
.lost img { width: 96px; height: 96px; }
.lost .letter { font-size: clamp(48px, 14vw, 88px); }
.lost .btn { display: inline-block; text-decoration: none; }

/* ---------- the two doors on the cover ---------- */
.doors { display: grid; gap: 12px; margin-top: 22px; }
.door { display: block; text-decoration: none; color: var(--ink); background: var(--cream); border: 3px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); padding: 14px 16px; }
.door b { display: block; font: 400 30px/1 var(--comic); letter-spacing: .04em; }
.door span { display: block; margin-top: 6px; font-size: 15px; color: var(--muted); }
.door.try { background: var(--gold); }
.door.try span { color: var(--ink); }
.door:active { transform: translate(3px, 3px); box-shadow: 3px 3px 0 var(--ink); }

/* ---------- /try: one step per screen ---------- */
body.game { min-height: 100dvh; padding-bottom: calc(86px + env(safe-area-inset-bottom)); }
.game .topbar .home { display: block; line-height: 0; }
.dots { list-style: none; display: flex; gap: 6px; margin: 0 0 0 auto; padding: 0; }
.dots li { width: 14px; height: 6px; background: rgb(255 255 255 / .2); border-radius: 3px; }
.dots li.done { background: var(--gold-deep); }
.dots li.now { background: var(--gold); width: 24px; }
.play { width: min(100% - 32px, 600px); margin: 0 auto; padding: 22px 0 10px; }
.step { display: none; }
.step.on { display: block; animation: step-in .4s cubic-bezier(.2,.8,.2,1) both; }
@keyframes step-in { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: none; } }
.step .panel { margin-top: 18px; }
.step .panel > .tag { margin-bottom: 14px; }
.step h2:focus { outline: none; }
.letter.dark { font-size: clamp(36px, 10vw, 52px); margin: 4px 0 12px; }
.step .panel p { margin: 0 0 10px; }
.says.big p { font-size: 25px; }
.says.big { margin-top: 8px; }
.input.big { font-size: 26px; padding: 12px 14px; }
.tree.mini { margin-top: 14px; }
.tree.mini .h { font-size: 10.5px; padding: 6px 0; }
.tree .h.mine { background: var(--yellow); }
.rivals { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 6px 0 4px; }
.rival { background: #fff; border: 3px solid var(--ink); padding: 10px; box-shadow: 3px 3px 0 var(--ink); display: grid; gap: 4px; }
.rival b { font: 400 22px/1 var(--comic); letter-spacing: .04em; }
.rival.you b { color: var(--blue-shadow); }
.rival span { font-size: 11.5px; color: var(--muted); }
.rival strong { font: 500 13px var(--mono); color: var(--red); }
.rival.win { background: #d9f5e3; }
.rival.win strong { color: var(--green); }
.recap { margin: 0 0 6px; padding-left: 20px; }
.recap li { margin: 8px 0; }
.controls {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  display: flex; gap: 10px; justify-content: center;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--navy-deep); border-top: 3px solid var(--ink);
}
.controls .btn { flex: 1; max-width: 300px; font-size: 22px; padding: 13px 14px 11px; }
.controls #back { flex: 0 0 auto; }
.controls [hidden], .controls[hidden] { display: none; }
a.btn { display: inline-block; text-decoration: none; }
@media (prefers-reduced-motion: reduce) { .step.on { animation: none; } }

/* ---------- reading page: quiet chapter leads and static figures ---------- */
.lede {
  margin: 0; max-width: 62ch; padding: 2px 0 2px 14px;
  border-left: 4px solid var(--gold);
  color: #dfe8f7; font-size: 17px; line-height: 1.6;
}
.chapter > header { margin-bottom: 14px; }
.door { display: flex; align-items: center; gap: 14px; }
.door .txt { flex: 1; min-width: 0; }
.door .go {
  flex: none; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%;
  font: 700 28px/1 var(--sans); color: var(--gold); background: var(--ink);
  box-shadow: 0 0 0 3px var(--ink);
}
.door:not(.try) .go { background: var(--gold); color: var(--ink); }
.door.try .go { animation: nudge 1.6s ease-in-out infinite; color: var(--gold); }
@keyframes nudge { 0%, 60%, 100% { transform: translateX(0); } 30% { transform: translateX(5px); } }
.via { display: flex; align-items: center; gap: 10px; font: 500 13.5px var(--mono); color: var(--green); padding: 2px 4px; }
.via svg { width: 24px; height: 24px; flex: none; }
.fig-note { margin: 12px 0 0; font-size: 14.5px; color: var(--muted); }
.try-link {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 12px;
  font: 400 18px/1 var(--comic); letter-spacing: .05em; text-transform: uppercase; text-decoration: none;
  color: var(--ink); background: var(--gold); border: 3px solid var(--ink); box-shadow: 3px 3px 0 var(--ink); padding: 9px 12px 7px;
}
.try-link:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.rules { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 8px; }
.rules li { display: flex; gap: 10px; align-items: flex-start; padding: 10px; border: 2px solid var(--ink); font-size: 14.5px; line-height: 1.45; }
.rules li.yes { background: #e3f7ea; }
.rules li.no { background: #ffe1e3; }
.rules .mark { width: 22px; height: 22px; flex: none; margin-top: 1px; }
.rules .yes .mark { color: var(--green); }
.rules .no .mark { color: var(--red); }
.rules code { word-break: break-all; }
.kv.bad { background: #ffe1e3; }
.kv mark { background: var(--red); color: #fff; padding: 0 2px; }
.tagcols { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tree .lvl.n1 { grid-template-columns: 1fr; }
.tree .lvl.n2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tree .lvl.n4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tree .lvl.n8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
.tree { margin-top: 12px; }
.spot { cursor: default; min-height: 0; }
.spot .leak { color: var(--ink); }
.spot .fix { display: block; color: var(--green); font-weight: 600; padding-top: 8px; border-top: 2px dashed rgb(17 17 17 / .2); }
.spot .fix a { color: var(--green); white-space: nowrap; }
.shares th:first-child, .shares td:first-child { width: 12%; }
.shares th:last-child, .shares td:last-child { width: 20%; }
/* chapter 5: one compact line per step */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; counter-reset: t; }
.timeline li {
  counter-increment: t; display: grid; grid-template-columns: 26px 1fr; gap: 10px; align-items: baseline;
  padding: 7px 10px 7px 8px; background: #fff; border: 2px solid var(--ink); font-size: 14.5px; line-height: 1.4;
}
.timeline li::before { content: counter(t); font: 400 18px/1 var(--comic); text-align: center; color: var(--gold); background: var(--ink); padding: 3px 0 2px; }
.timeline b { font: 400 17px/1 var(--comic); letter-spacing: .04em; text-transform: uppercase; margin-right: 6px; }
.timeline li.open { background: #e3f7ea; }
.timeline li.sealed { background: #fff3c4; }
@media (prefers-reduced-motion: reduce) { .door.try .go { animation: none; } }
.timeline p { margin: 0; }
.chapter > .side > .limits { margin-top: 22px; }