:root {
  --paper: #f5f0e6;
  --paper-deep: #ebe2d3;
  --ink: #2b2420;
  --ink-soft: #62554d;
  --line: #cfc3b1;
  --accent: #b87333;
  --accent-dark: #875226;
  --sage: #cbd1bd;
  --clay: #d6b9a6;
  --ochre: #d9c9a0;
  --white: #fffdf8;
  --max: 1180px;
  --reading: 760px;
  --serif: Iowan Old Style, Baskerville, Times New Roman, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 6;
  opacity: .18;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 140 140' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.14'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--accent-dark); }
img, svg { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header { border-bottom: 1px solid var(--line); }
.header-inner {
  width: min(calc(100% - 48px), var(--max));
  min-height: 82px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  width: fit-content;
  font-family: var(--serif);
  font-size: 19px;
  text-decoration: none;
}
.wordmark b { font-weight: 700; }
.wordmark svg { width: 30px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.brand-wordmark {
  display: block;
  width: clamp(148px, 15vw, 178px);
  line-height: 0;
  text-decoration: none;
}
.brand-wordmark img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: contain;
}
.header-inner nav { display: flex; gap: 28px; font-size: 14px; font-weight: 650; }
.header-inner nav a { text-decoration: none; }
.header-inner nav a[aria-current="page"] { color: var(--accent-dark); }
.header-status {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.header-status i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: breathe 2.6s ease-in-out infinite; }

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -.025em; }
h1 { margin: 0; font-size: clamp(3rem, 6vw, 5.7rem); line-height: .98; }
h2 { margin: 0 0 24px; font-size: clamp(2rem, 4vw, 3.65rem); line-height: 1.05; }
h3 { margin: 0 0 12px; font-size: 1.45rem; line-height: 1.2; }
p { margin: 0 0 1.25em; }

.hero {
  width: min(calc(100% - 48px), var(--max));
  min-height: min(780px, calc(100dvh - 83px));
  margin: 0 auto;
  padding: 78px 0 92px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(420px, .85fr);
  align-items: center;
  gap: clamp(48px, 8vw, 118px);
}
.hero-copy { padding-bottom: 8px; }
.hero h1 { max-width: 680px; font-size: clamp(3.25rem, 4.6vw, 4.35rem); }
.hero .lead { max-width: 620px; margin: 28px 0 34px; color: var(--ink-soft); font-size: clamp(1.1rem, 1.7vw, 1.32rem); line-height: 1.55; }
.hero-actions { display: flex; align-items: center; gap: 22px; }
.text-link { font-size: 14px; font-weight: 750; }
.case-board { margin: 0; position: relative; }
.case-board::before { content: ""; position: absolute; inset: 12% 3% 7% 16%; border: 1px solid var(--line); transform: rotate(3deg); z-index: -1; }
.case-board svg { overflow: visible; filter: drop-shadow(0 24px 18px rgba(61, 45, 34, .12)); animation: settle .8s cubic-bezier(.16, 1, .3, 1) both; }
.localized-case-shot { width: min(100%, 360px); justify-self: center; padding: 19px 20px 16px; border: 1px solid #b9a68b; background: #efe2cb; box-shadow: 0 18px 45px rgba(47,37,28,.2); transform: rotate(-.7deg); animation: settle .8s cubic-bezier(.16, 1, .3, 1) both; }
.localized-case-shot::before { inset: 5% -7% -4% 8%; background: #e6d5b8; transform: rotate(3deg); }
.localized-evidence-label { display: block; margin-bottom: 10px; color: var(--accent-dark); font: 800 .68rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; text-transform: uppercase; }
.localized-screen-mat { width: min(100%, 248px); margin: 0 auto; padding: 7px; border: 1px solid #c6b9a5; background: rgba(255,255,255,.5); }
.localized-screen-mat img { display: block; width: 100%; height: auto; aspect-ratio: 720 / 1564; object-fit: cover; background: #f5f5f7; }
.localized-case-shot figcaption { margin-top: 12px; padding-top: 11px; border-top: 1px solid var(--line); color: var(--ink-soft); font: 600 .68rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; text-align: center; }
.board-paper { fill: #eee6d8; stroke: var(--ink); stroke-width: 3; }
.room { stroke: none; }
.room-sage { fill: var(--sage); }
.room-paper { fill: #e4d9c7; }
.room-clay { fill: var(--clay); }
.room-ochre { fill: var(--ochre); }
.rooms text { fill: var(--ink-soft); font-family: var(--sans); font-size: 11px; font-weight: 800; letter-spacing: 2px; }
.grid-lines path { fill: none; stroke: var(--ink); stroke-width: 1.4; opacity: .3; }
.walls path { fill: none; stroke: var(--ink); stroke-width: 8; stroke-linecap: square; }
.suspect circle { fill: var(--ink); stroke: var(--paper); stroke-width: 4; }
.suspect-b circle { fill: var(--accent); }
.suspect text { fill: var(--paper); font-family: var(--sans); font-size: 21px; font-weight: 800; text-anchor: middle; }
.furniture { fill: none; stroke: var(--ink); stroke-width: 4; stroke-linecap: round; opacity: .7; }
.clue-card rect { fill: var(--white); stroke: var(--ink); stroke-width: 2; }
.clue-card text { font-family: var(--sans); fill: var(--ink); }
.clue-card .clue-label { fill: var(--accent-dark); font-size: 11px; font-weight: 800; letter-spacing: 2px; }
.clue-card .clue-copy { font-family: var(--serif); font-size: 19px; }
.clue-card path { stroke: var(--line); }
.verified-stamp rect { fill: var(--paper); stroke: var(--accent); stroke-width: 2; }
.verified-stamp path { fill: none; stroke: var(--accent); stroke-width: 3; }
.verified-stamp text { fill: var(--accent-dark); font-family: var(--sans); font-size: 11px; font-weight: 800; letter-spacing: 1.4px; }

.coming-soon { max-width: 390px; padding: 18px 20px; border: 1px solid var(--ink); background: rgba(255,253,248,.38); box-shadow: 5px 5px 0 var(--paper-deep); }
.coming-soon .eyebrow { display: block; margin-bottom: 6px; }
.coming-soon strong { display: block; font-family: var(--serif); font-size: 20px; }
.coming-soon small { display: block; margin-top: 3px; color: var(--ink-soft); font-size: 12px; line-height: 1.45; }
.store-badge { display: inline-flex; align-items: center; gap: 10px; min-height: 54px; padding: 7px 15px 7px 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 9px; background: #171512; color: #fff; line-height: 1; text-decoration: none; }
.store-badge-mark { flex: 0 0 28px; width: 28px; height: 28px; fill: currentColor; }
.store-badge-copy { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; }
.store-badge-copy small { font-size: 9px; font-weight: 550; letter-spacing: .01em; }
.store-badge-copy strong { font-size: 19px; font-weight: 650; letter-spacing: -.02em; }
.store-badge-static { cursor: default; user-select: none; }
.store-badge:hover { color: #fff; }

.rule-band { border-block: 1px solid var(--ink); }
.rule-band-inner { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; display: grid; grid-template-columns: .78fr 2.22fr; }
.rule-band header { padding: 72px 56px 72px 0; border-right: 1px solid var(--ink); }
.rule-band header p:last-child { color: var(--ink-soft); }
.steps { counter-reset: case-step; }
.step { counter-increment: case-step; display: grid; grid-template-columns: 80px 1fr; gap: 26px; padding: 40px 0 40px 56px; border-bottom: 1px solid var(--line); }
.step:last-child { border-bottom: 0; }
.step::before { content: "0" counter(case-step); color: var(--accent-dark); font-family: var(--serif); font-size: 29px; }
.step p { max-width: 590px; margin-bottom: 0; color: var(--ink-soft); }

.feature-section, .screens-section, .final-cta, .faq-teaser { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 120px 0; }
.section-heading { display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: end; margin-bottom: 60px; }
.section-heading p:last-child { color: var(--ink-soft); }
.feature-ledger { display: grid; grid-template-columns: 1.25fr .75fr; border-top: 1px solid var(--ink); }
.feature { min-height: 240px; padding: 36px 42px 36px 0; border-bottom: 1px solid var(--line); }
.feature:nth-child(even) { padding-left: 42px; border-left: 1px solid var(--line); }
.feature strong { display: block; margin-bottom: 14px; color: var(--accent-dark); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.feature p { max-width: 500px; color: var(--ink-soft); }

.screens-section { overflow: hidden; }
.screen-reel { display: grid; grid-template-columns: .8fr 1.1fr .86fr; align-items: end; gap: clamp(18px, 4vw, 52px); }
.screen { margin: 0; }
.screen:nth-child(2) { transform: translateY(38px); }
.device { padding: 9px; border: 2px solid var(--ink); border-radius: 34px; background: var(--ink); box-shadow: 0 22px 50px rgba(67, 49, 36, .14); }
.device picture { display: block; width: 100%; border-radius: 25px; }
.device img { width: 100%; height: auto; border-radius: 25px; }
.screen figcaption { margin-top: 16px; font-size: 13px; color: var(--ink-soft); }
.screen figcaption span { color: var(--accent-dark); font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }

.faq-teaser { display: grid; grid-template-columns: 1.18fr .82fr; gap: 80px; border-top: 1px solid var(--ink); }
.faq-teaser blockquote { margin: 0; padding-left: 30px; border-left: 3px solid var(--accent); font-family: var(--serif); font-size: clamp(1.55rem, 3vw, 2.5rem); line-height: 1.2; }
.faq-teaser .answer { color: var(--ink-soft); }
.final-cta { padding-top: 40px; }
.final-cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: end; padding: 58px 0; border-block: 1px solid var(--ink); }
.final-cta h2 { max-width: 720px; margin-bottom: 0; }

.page-header { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 92px 0 72px; border-bottom: 1px solid var(--ink); }
.page-header-grid { display: grid; grid-template-columns: 1.45fr .55fr; gap: 80px; align-items: end; }
.page-header h1 { font-size: clamp(3rem, 6vw, 5.35rem); max-width: 900px; }
.page-header .dek { color: var(--ink-soft); font-size: 1.16rem; }
.page-meta { display: flex; justify-content: space-between; margin-top: 52px; color: var(--ink-soft); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }

.article { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; display: grid; grid-template-columns: 220px minmax(0, var(--reading)); gap: clamp(50px, 9vw, 130px); padding: 88px 0 128px; }
.article-nav { position: sticky; top: 24px; align-self: start; padding-top: 5px; }
.article-nav .eyebrow { margin-bottom: 18px; }
.article-nav a { display: block; margin: 10px 0; color: var(--ink-soft); font-size: 13px; text-decoration: none; }
.prose { min-width: 0; }
.prose > p:first-child { font-family: var(--serif); font-size: 1.55rem; line-height: 1.45; }
.prose h2 { margin-top: 84px; padding-top: 24px; border-top: 1px solid var(--ink); font-size: 2.55rem; scroll-margin-top: 24px; }
.prose h3 { margin-top: 42px; }
.prose p, .prose li { color: #483e38; }
.prose strong { color: var(--ink); }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li { margin-bottom: .7em; }
.prose blockquote { margin: 38px 0; padding: 26px 30px; border-left: 3px solid var(--accent); background: rgba(255,253,248,.46); font-family: var(--serif); font-size: 1.28rem; }
.prose blockquote p { margin: 0; color: var(--ink); }
.prose a { color: var(--accent-dark); font-weight: 700; }
.prose table { width: 100%; margin: 34px 0; border-collapse: collapse; font-size: .92rem; }
.prose th, .prose td { padding: 13px 12px; border-bottom: 1px solid rgba(43,36,32,.25); text-align: left; vertical-align: top; }
.prose th { color: var(--ink); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.guide-list { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 70px 0 120px; }
.guide-card { display: grid; grid-template-columns: 160px 1fr auto; gap: 36px; align-items: start; padding: 32px 0; border-top: 1px solid var(--ink); text-decoration: none; color: var(--ink); }
.guide-card span { color: var(--accent-dark); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.guide-card h2 { margin: 0 0 8px; font-size: 2rem; }
.guide-card p { margin: 0; color: var(--ink-soft); }
.answer-box { margin: 30px 0 42px; padding: 26px 28px; border: 1px solid var(--ink); background: rgba(255,253,248,.52); }
.answer-box h2, .answer-box h3 { margin: 0 0 10px; padding: 0; border: 0; font-size: 1.35rem; }
.answer-box p:last-child { margin-bottom: 0; }
.game-plug { margin: 48px 0; padding: 32px; border: 1px solid var(--accent-dark); background: #eadfce; }
.game-plug .eyebrow { margin-bottom: 12px; color: var(--accent-dark); }
.game-plug h2, .game-plug h3 { margin: 0 0 12px; padding: 0; border: 0; font-size: 1.8rem; }
.game-plug p { color: var(--ink); }
.game-plug a { display: inline-block; margin-top: 8px; }
.content-crumb { width: min(calc(100% - 48px), var(--max)); margin: 22px auto -50px; color: var(--ink-soft); font-size: .78rem; }
.content-crumb a { color: var(--accent-dark); font-weight: 700; text-decoration: none; }
.scenario-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 16px; align-items: center; margin: 38px 0; }
.scenario-flow div { min-height: 150px; padding: 20px; border: 1px solid var(--ink); background: rgba(255,253,248,.5); }
.scenario-flow strong { display: block; margin-bottom: 10px; color: var(--accent-dark); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.scenario-flow > span { color: var(--accent-dark); font-size: 1.5rem; }
.article-graphic { margin: 2.5rem 0; padding: 1rem; overflow-x: auto; border: 1px solid var(--line); background: #fffdf8; }
.article-graphic svg { display: block; width: 100%; min-width: 640px; height: auto; color: var(--ink); }
.article-graphic rect { fill: #f2eadc; stroke: var(--line); }
.article-graphic text { font-family: var(--sans); font-size: 17px; font-weight: 700; }
.article-graphic .graphic-number { fill: var(--accent); font-size: 13px; letter-spacing: .08em; }
.article-graphic .graphic-note { font-size: 12px; font-weight: 500; fill: var(--muted); }
.article-graphic figcaption { margin-top: .6rem; color: var(--muted); font-size: .86rem; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 30px 0; }
.related-grid a { padding: 22px; border: 1px solid rgba(43,36,32,.35); text-decoration: none; }
.related-grid strong { display: block; margin-bottom: 6px; }

.clue-diagram { margin: 36px 0; padding: 28px; border: 1px solid var(--line); background: rgba(255,253,248,.35); }
.clue-diagram svg { width: min(100%, 560px); margin: 0 auto; }
.clue-diagram figcaption { margin-top: 20px; color: var(--ink-soft); font-size: 13px; text-align: center; }
.mini-grid rect { fill: var(--paper-deep); stroke: var(--ink); stroke-width: 1.5; }
.mini-grid .active { fill: var(--sage); }
.mini-grid .accent { fill: var(--clay); }
.mini-grid circle { fill: var(--ink); }
.mini-grid text { fill: var(--paper); font-family: var(--sans); font-weight: 800; text-anchor: middle; dominant-baseline: central; }
.mini-grid path { fill: none; stroke: var(--accent); stroke-width: 5; stroke-linecap: round; }

.faq-list { margin-top: 34px; border-top: 1px solid var(--ink); }
.faq-item { padding: 26px 0; border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0 0 8px; font-family: var(--sans); font-size: 1rem; font-weight: 750; letter-spacing: 0; }
.faq-item p { margin: 0; }

.support-panel { margin: 42px 0; padding: 38px; border: 1px solid var(--ink); box-shadow: 7px 7px 0 var(--paper-deep); }
.support-panel .button, .button { display: inline-block; padding: 13px 19px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); font-size: 13px; font-weight: 750; text-decoration: none; transition: transform .2s ease; }
.prose .button, .prose .button:visited { color: var(--paper); }
.button:hover { color: var(--paper); transform: translateY(-2px); }
.button:active { transform: translateY(1px); }
.fact-sheet { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-top-color: var(--ink); }

/* Puzzle tools */
.tool-upcoming { opacity: .58; }
.solver-shell, .tool-explainer { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.solver-shell { padding: 72px 0 120px; }
.solver-intro { display: grid; grid-template-columns: 1fr .85fr; gap: 42px 70px; align-items: start; padding-bottom: 72px; }
.photo-drop { min-height: 210px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 30px; border: 1px dashed var(--ink); background: rgba(255,253,248,.42); cursor: pointer; text-align: center; }
.photo-drop:hover { background: var(--white); }
.photo-drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.photo-drop-icon { font-size: 34px; color: var(--accent-dark); }
.photo-drop small { color: var(--ink-soft); }
.photo-preview { margin: 0; grid-column: 1 / -1; padding: 20px; border: 1px solid var(--line); background: var(--white); }
.photo-preview-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.photo-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.photo-gallery figure { margin: 0; border: 1px solid var(--line); background: var(--paper); }
.photo-gallery img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #161412; }
.photo-gallery figcaption { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; font-size: 12px; }
.analyze-photos { margin-top: 18px; }
.scan-status { grid-column: 1 / -1; padding: 24px 28px; border: 1px solid var(--line); background: var(--white); }
.scan-status h3, .scan-status p { margin: 4px 0 8px; }
.scan-status details { margin-top: 16px; }
.scan-status summary { cursor: pointer; font-weight: 700; }
.scan-status li { margin: 7px 0; }
.scan-status.is-loading { border-color: var(--accent); }
.scan-status.is-ready { border-color: #60745a; background: #f1f4ec; }
.scan-status.is-warning { border-color: #a67c32; background: #fff8e8; }
.scan-status.is-error { border-color: #9c493d; background: #fff0ed; }
.solver-workbench { padding: 46px; border: 1px solid var(--ink); background: rgba(255,253,248,.54); }
.solver-controls { display: flex; gap: 22px; align-items: end; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.solver-controls > div:first-child { margin-right: auto; }
.solver-controls h2 { margin: 4px 0 0; }
.solver-controls label { display: grid; gap: 7px; font-size: 12px; font-weight: 700; }
.solver-controls select { min-height: 43px; padding: 0 34px 0 12px; border: 1px solid var(--ink); background: var(--paper); font: inherit; }
.solver-controls input, .room-editor-bar input, .board-tools input, .person-editor input, .person-editor textarea { width: 100%; border: 1px solid var(--line); border-radius: 0; background: var(--white); color: var(--ink); font: inherit; }
.solver-controls input, .room-editor-bar input, .board-tools input, .person-editor input { min-height: 42px; padding: 8px 11px; }
.person-editor textarea { padding: 11px; resize: vertical; line-height: 1.45; }
.room-editor-bar { display: grid; grid-template-columns: 1fr auto minmax(190px, .42fr); gap: 18px; align-items: end; padding: 22px 0; border-block: 1px solid var(--line); }
.room-editor-bar label, .board-tools label, .person-editor label { display: grid; gap: 6px; color: var(--ink-soft); font-size: 12px; font-weight: 700; }
.room-tabs { display: flex; flex-wrap: wrap; gap: 7px; }
.room-tabs button { display: flex; gap: 8px; align-items: center; padding: 9px 11px; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; }
.room-tabs button span { width: 14px; height: 14px; border: 1px solid rgba(43,36,32,.35); background: var(--room-color); }
.room-tabs button.is-active { border-color: var(--ink); box-shadow: inset 0 -2px 0 var(--ink); }
.board-tools { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; padding: 20px 0; }
.board-tools button { min-height: 42px; padding: 8px 12px; border: 1px solid var(--line); background: transparent; color: var(--ink); font: inherit; font-size: 12px; font-weight: 700; cursor: pointer; }
.board-tools button.is-active { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.board-tools label { width: min(220px, 100%); margin-left: auto; }
.case-editor-layout { display: grid; grid-template-columns: minmax(360px, 1fr) minmax(280px, .82fr); gap: 46px; align-items: start; margin-top: 18px; }
.case-grid { --solver-size: 4; display: grid; grid-template-columns: repeat(var(--solver-size), 1fr); aspect-ratio: 1; border: 2px solid var(--ink); }
.case-grid > button { position: relative; min-width: 0; border: 0; border-right: 1px solid rgba(43,36,32,.26); border-bottom: 1px solid rgba(43,36,32,.26); background: var(--cell-room); color: var(--ink); cursor: pointer; }
.case-grid > button:hover { filter: brightness(.96); box-shadow: inset 0 0 0 2px var(--accent-dark); }
.cell-coordinate { position: absolute; top: 5px; left: 6px; color: rgba(43,36,32,.52); font-size: 10px; }
.cell-object { display: grid; place-items: center; font-size: clamp(16px, 2.2vw, 30px); font-weight: 800; }
.cell-object small { display: block; max-width: 90%; overflow: hidden; font-size: 9px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.cell-object.sittable { color: #506347; }
.cell-object.blocking { color: #88493f; }
.case-grid[data-grid-size="9"] .cell-coordinate, .case-grid[data-grid-size="10"] .cell-coordinate, .case-grid[data-grid-size="11"] .cell-coordinate, .case-grid[data-grid-size="12"] .cell-coordinate { top: 2px; left: 3px; font-size: 7px; }
.case-grid[data-grid-size="9"] .cell-object small, .case-grid[data-grid-size="10"] .cell-object small, .case-grid[data-grid-size="11"] .cell-object small, .case-grid[data-grid-size="12"] .cell-object small { display: none; }
.person-editor { display: grid; gap: 12px; max-height: 640px; padding-right: 6px; overflow-y: auto; }
.person-editor section { display: grid; grid-template-columns: minmax(110px, .42fr) 1fr; gap: 12px; padding: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.45); }
.case-editor-action { display: flex; gap: 18px; align-items: center; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.case-editor-action p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.advanced-candidates { margin-top: 38px; border-top: 1px solid var(--ink); }
.advanced-candidates > summary { padding: 20px 0; cursor: pointer; font-weight: 750; }
.advanced-candidates-inner { padding-top: 12px; }
.secondary-button { min-height: 43px; padding: 0 18px; border: 1px solid var(--ink); background: transparent; color: var(--ink); font: inherit; font-weight: 700; cursor: pointer; }
.text-button { padding: 8px 2px; border: 0; background: transparent; color: var(--accent-dark); font: inherit; font-weight: 700; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.solver-instructions { display: flex; gap: 16px; align-items: center; max-width: 760px; margin: 28px 0; color: var(--ink-soft); }
.instruction-number { display: grid; flex: 0 0 34px; height: 34px; place-items: center; border: 1px solid var(--ink); border-radius: 50%; color: var(--ink); font-weight: 800; }
.suspect-tabs { display: flex; gap: 8px; overflow-x: auto; margin-bottom: 24px; }
.suspect-tabs button { min-width: 112px; padding: 12px 16px; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; text-align: left; }
.suspect-tabs button[aria-selected="true"] { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.suspect-tabs small { display: block; margin-top: 3px; opacity: .68; }
.candidate-layout { display: grid; grid-template-columns: minmax(320px, 1fr) minmax(220px, .55fr); gap: 46px; align-items: start; }
.candidate-label { margin: 0 0 12px; font-weight: 750; }
.candidate-grid { --solver-size: 4; display: grid; grid-template-columns: repeat(var(--solver-size), 1fr); aspect-ratio: 1; border: 2px solid var(--ink); }
.candidate-grid button { position: relative; display: grid; place-items: center; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: transparent; color: var(--ink-soft); cursor: pointer; }
.candidate-grid button:hover { background: var(--white); }
.candidate-grid .is-possible::after { content: ""; width: 28%; aspect-ratio: 1; border: 2px solid var(--accent-dark); border-radius: 50%; }
.candidate-grid .is-ruled-out::before, .candidate-grid .is-ruled-out::after { content: ""; position: absolute; width: 42%; height: 1px; background: var(--line); transform: rotate(45deg); }
.candidate-grid .is-ruled-out::after { transform: rotate(-45deg); }
.candidate-grid .is-solution { background: var(--sage); box-shadow: inset 0 0 0 3px var(--accent-dark); }
.candidate-grid button span { position: absolute; top: 5px; left: 6px; font-size: 10px; }
.solver-ledger { border-top: 1px solid var(--ink); }
.solver-ledger > p:first-child { margin: 15px 0; }
.solver-ledger [data-ledger] button { display: flex; width: 100%; justify-content: space-between; gap: 20px; padding: 13px 0; border: 0; border-top: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; text-align: left; }
.solver-ledger [data-ledger] strong { color: var(--ink-soft); font-size: 12px; text-align: right; }
.solver-rule { margin-top: 24px; color: var(--ink-soft); font-size: 13px; line-height: 1.55; }
.solver-actions { display: flex; align-items: center; gap: 14px; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--line); }
.danger-action { margin-left: auto; color: #854237; }
.solver-result { margin-top: 22px; padding: 24px 28px; border-left: 4px solid var(--line); background: var(--white); }
.solver-result h3, .solver-result p { margin: 4px 0 7px; }
.solver-result.is-success { border-color: #60745a; background: #f1f4ec; }
.solver-result.is-warning { border-color: #a67c32; background: #fff8e8; }
.solver-result.is-error { border-color: #9c493d; background: #fff0ed; }
.tool-explainer { padding: 0 0 128px; }
.tool-explainer > div:first-child { max-width: 720px; }
.tool-steps { display: grid; grid-template-columns: repeat(3, 1fr); margin: 48px 0; border-block: 1px solid var(--ink); }
.tool-steps article { padding: 30px; border-right: 1px solid var(--line); }
.tool-steps article:last-child { border: 0; }
.tool-steps article > span { color: var(--accent-dark); font-size: 12px; font-weight: 800; }
.tool-disclaimer { margin-top: 30px; color: var(--ink-soft); font-size: 13px; }
.number-solver { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 72px 0 120px; }
.paper-upload { display: grid; grid-template-columns: 1fr .85fr; gap: 42px 70px; align-items: start; padding-bottom: 64px; }
.paper-upload .scan-status { grid-column: 1 / -1; }
.number-workbench { padding: 44px; border: 1px solid var(--ink); background: rgba(255,253,248,.54); }
.number-heading, .cage-editor-head { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 24px; }
.number-heading h2 { margin: 4px 0 0; }
.sudoku-grid { display: grid; grid-template-columns: repeat(9, 1fr); width: min(100%, 680px); aspect-ratio: 1; border: 3px solid var(--ink); background: var(--white); }
.sudoku-grid label { position: relative; display: grid; place-items: center; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sudoku-grid label:nth-child(3n) { border-right: 2px solid var(--ink); }
.sudoku-grid label:nth-child(n+19):nth-child(-n+27), .sudoku-grid label:nth-child(n+46):nth-child(-n+54) { border-bottom: 2px solid var(--ink); }
.sudoku-grid label:nth-child(9n) { border-right: 0; }
.sudoku-grid label:nth-child(n+73) { border-bottom: 0; }
.sudoku-grid input { width: 100%; height: 100%; border: 0; background: transparent; color: var(--ink); font: 500 clamp(16px, 3vw, 30px)/1 var(--sans); text-align: center; }
.sudoku-grid label > span { position: absolute; top: 2px; left: 3px; color: rgba(43,36,32,.35); font-size: 7px; pointer-events: none; }
.sudoku-grid .is-given input { font-weight: 850; }
.sudoku-grid .is-solved:not(.is-given) input { color: var(--accent-dark); }
.sudoku-grid .is-hint { background: #e8efdd; box-shadow: inset 0 0 0 3px #60745a; }
.killer-layout { display: grid; grid-template-columns: minmax(430px, 1fr) minmax(300px, .7fr); gap: 42px; align-items: start; }
.cage-editor { max-height: 680px; overflow-y: auto; }
.cage-editor [data-cage-list] { display: grid; gap: 9px; }
.cage-editor [data-cage-list] section { display: grid; grid-template-columns: 82px 1fr auto; gap: 8px; align-items: end; padding: 10px; border: 1px solid var(--line); background: var(--white); }
.cage-editor label { display: grid; gap: 5px; color: var(--ink-soft); font-size: 11px; font-weight: 700; }
.cage-editor input { min-height: 38px; width: 100%; padding: 6px 8px; border: 1px solid var(--line); background: var(--paper); font: inherit; }
.fact { min-width: 0; padding: 22px 28px; border-bottom: 1px solid var(--line); }
.fact:nth-child(even) { border-left: 1px solid var(--line); }
.fact:nth-last-child(-n+2) { border-bottom: 0; }
.fact dt { color: var(--accent-dark); font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.fact dd { margin: 7px 0 0; font-family: var(--serif); font-size: 1.25rem; }

.site-footer { border-top: 1px solid var(--ink); }
.footer-grid { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 72px 0; display: grid; grid-template-columns: 1.6fr .7fr .55fr 1fr; gap: 70px; }
.footer-intro h2 { margin-bottom: 18px; font-size: 2.2rem; }
.footer-intro p:last-child { max-width: 440px; color: var(--ink-soft); }
.footer-grid nav a { display: block; width: fit-content; margin-bottom: 9px; color: var(--ink-soft); font-size: 14px; text-decoration: none; }
.locale-list { columns: 2; column-gap: 20px; }
.locale-list .eyebrow { column-span: all; }
.locale-list a[aria-current="page"] { color: var(--ink); font-weight: 750; }
.footer-base { padding: 18px max(24px, calc((100vw - var(--max)) / 2)); display: flex; justify-content: space-between; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 11px; letter-spacing: .06em; }
.registration { font-variant-numeric: tabular-nums; }

@keyframes breathe { 0%,100% { opacity: .45; transform: scale(.8); } 50% { opacity: 1; transform: scale(1); } }
@keyframes settle { from { opacity: 0; transform: translate3d(0, 18px, 0) rotate(1deg); } to { opacity: 1; transform: translate3d(0, 0, 0) rotate(0); } }

@media (max-width: 920px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .header-inner nav { display: none; }
  .hero { grid-template-columns: 1.08fr .92fr; gap: 35px; }
  .rule-band-inner { grid-template-columns: 1fr; }
  .rule-band header { padding-right: 0; border-right: 0; border-bottom: 1px solid var(--ink); }
  .step { padding-left: 0; }
  .footer-grid { grid-template-columns: 1.3fr .7fr .7fr; }
  .locale-list { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .header-inner { width: min(calc(100% - 32px), var(--max)); min-height: 68px; }
  .wordmark { font-size: 16px; }
  .wordmark svg { width: 26px; }
  .brand-wordmark { width: 138px; }
  .header-status { font-size: 9px; }
  .hero, .feature-section, .screens-section, .final-cta, .faq-teaser, .page-header, .article, .footer-grid, .rule-band-inner { width: min(calc(100% - 32px), var(--max)); }
  .hero { min-height: auto; padding: 62px 0 76px; grid-template-columns: 1fr; }
  .hero-copy { order: 1; }
  .case-board { order: 2; margin-top: 8px; }
  h1, .page-header h1 { font-size: clamp(2.75rem, 15vw, 4.4rem); }
  .hero h1, .page-header h1 { overflow-wrap: anywhere; }
  .locale-ru .hero h1, .locale-uk .hero h1 { font-size: clamp(2.4rem, 12vw, 3.6rem); overflow-wrap: normal; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .rule-band header { padding: 55px 0 42px; }
  .step { grid-template-columns: 52px 1fr; gap: 12px; padding: 30px 0; }
  .feature-section, .screens-section, .faq-teaser { padding: 88px 0; }
  .section-heading, .feature-ledger, .faq-teaser, .final-cta-inner, .page-header-grid, .article { grid-template-columns: 1fr; }
  .section-heading { gap: 12px; margin-bottom: 38px; }
  .feature { min-height: 0; padding: 28px 0; }
  .feature:nth-child(even) { padding-left: 0; border-left: 0; }
  .screen-reel { width: 195%; grid-template-columns: repeat(3, 1fr); gap: 18px; transform: translateX(-9%); }
  .screen:nth-child(2) { transform: translateY(24px); }
  .faq-teaser { gap: 40px; }
  .final-cta-inner { align-items: start; }
  .page-header { padding: 68px 0 52px; }
  .page-header-grid { gap: 28px; }
  .page-meta { margin-top: 34px; }
  .article { gap: 0; padding: 62px 0 92px; }
  .article-nav { display: none; }
  .prose h2 { margin-top: 64px; font-size: 2.2rem; }
  .prose table { display: block; overflow-x: auto; }
  .guide-card { grid-template-columns: 1fr; gap: 10px; }
  .content-crumb { width: min(calc(100% - 32px), var(--max)); margin-bottom: -34px; }
  .scenario-flow { grid-template-columns: 1fr; }
  .scenario-flow > span { transform: rotate(90deg); justify-self: center; }
  .related-grid { grid-template-columns: 1fr; }
  .fact-sheet { grid-template-columns: 1fr; }
  .solver-shell, .tool-explainer { width: min(calc(100% - 32px), var(--max)); }
  .number-solver { width: min(calc(100% - 32px), var(--max)); }
  .paper-upload, .killer-layout { grid-template-columns: 1fr; }
  .number-workbench { padding: 24px 16px; }
  .cage-editor [data-cage-list] section { grid-template-columns: 70px 1fr; }
  .cage-editor [data-cage-list] .text-button { grid-column: 1 / -1; }
  .solver-intro, .candidate-layout, .tool-steps { grid-template-columns: 1fr; }
  .case-editor-layout, .room-editor-bar { grid-template-columns: 1fr; }
  .board-tools label { width: 100%; margin-left: 0; }
  .person-editor section { grid-template-columns: 1fr; }
  .case-editor-action { align-items: stretch; flex-direction: column; }
  .photo-gallery { grid-template-columns: repeat(2, 1fr); }
  .solver-workbench { padding: 24px 18px; }
  .solver-controls { align-items: stretch; flex-direction: column; }
  .solver-controls > div:first-child { margin-right: 0; }
  .solver-actions { align-items: stretch; flex-direction: column; }
  .danger-action { margin-left: 0; }
  .tool-steps article { border-right: 0; border-bottom: 1px solid var(--line); }
  .fact { padding-inline: 18px; }
  .fact:nth-child(even) { border-left: 0; }
  .fact:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .footer-grid { padding: 54px 0; grid-template-columns: 1fr 1fr; gap: 42px 28px; }
  .footer-intro { grid-column: 1 / -1; }
  .locale-list { grid-column: 1 / -1; }
  .footer-base { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* Case-file edition ------------------------------------------------ */
.casefile-theme {
  --paper: #f3ead9;
  --paper-deep: #dfcfb7;
  --ink: #201d19;
  --ink-soft: #5d554c;
  --line: rgba(67, 54, 41, .28);
  --accent: #8f1f18;
  --accent-dark: #711712;
  --white: #faf4e8;
  --max: 1340px;
  --reading: 760px;
  background: #29251f;
  font-size: 16px;
  line-height: 1.58;
}
.casefile-theme::before { opacity: .055; mix-blend-mode: normal; }
.casefile-theme em { color: var(--accent); font-style: normal; }
.casefile-theme .site-frame {
  width: min(calc(100% - 40px), 1500px);
  margin: 20px auto;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 6px;
  background-color: var(--paper);
  background-image: radial-gradient(circle at 18% 8%, rgba(255,255,255,.55), transparent 32%), linear-gradient(rgba(255,255,255,.08), rgba(84,61,36,.035));
  box-shadow: 0 25px 80px rgba(0,0,0,.25);
}

.casefile-theme .casefile-header {
  min-height: 76px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
  padding: 0 40px;
  border-bottom: 1px solid var(--line);
}
.casefile-theme .casefile-brand { display: block; width: max-content; line-height: 0; text-decoration: none; }
.casefile-theme .casefile-brand-logo { display: block; width: clamp(122px, 11.2vw, 147px); height: auto; aspect-ratio: 3 / 1; object-fit: contain; }
.casefile-theme .casefile-nav { display: flex; gap: clamp(22px, 2.6vw, 44px); }
.casefile-theme .casefile-nav a { padding: 26px 0 24px; border-bottom: 2px solid transparent; font-size: .86rem; font-weight: 650; text-decoration: none; }
.casefile-theme .casefile-nav a:hover, .casefile-theme .casefile-nav a[aria-current="page"] { border-color: var(--accent); color: var(--accent-dark); }
.casefile-theme .casefile-header-actions { display: flex; justify-content: flex-end; align-items: center; gap: 14px; }
.casefile-theme .casefile-language { padding: 9px 13px; border: 1px solid var(--line); font: 700 .72rem var(--sans); text-decoration: none; }
.casefile-theme .casefile-status, .casefile-theme .casefile-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--accent-dark); border-radius: 2px; background: linear-gradient(180deg, #a42a21, var(--accent-dark)); color: #fff; box-shadow: 0 4px 0 rgba(95,20,15,.12); font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; transition: transform .2s ease, box-shadow .2s ease; }
.casefile-theme .casefile-button { min-height: 53px; padding: 0 25px; }
.casefile-theme .casefile-button:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 7px 12px rgba(95,20,15,.15); }
.casefile-theme .casefile-button:active { transform: translateY(1px); }
.casefile-theme .casefile-mobile-menu { display: none; }

.casefile-theme .case-label, .casefile-theme .section-index { margin: 0 0 20px; color: var(--ink); font: 700 .72rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.casefile-theme .case-label { color: var(--accent); }
.casefile-theme .case-label span { padding: 0 .3em; color: var(--ink-soft); }
.casefile-theme .section-index { padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.casefile-theme .section-index span { color: var(--accent); }
.casefile-theme .casefile-hero { min-height: 700px; display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: clamp(48px, 5vw, 76px); align-items: center; padding: 58px clamp(40px, 5vw, 78px) 62px; border-bottom: 1px solid var(--line); }
.casefile-theme .casefile-hero h1 { max-width: 790px; font-size: clamp(4rem, 5.8vw, 6rem); line-height: .91; letter-spacing: -.045em; text-wrap: balance; }
.casefile-theme .hero-lead { max-width: 590px; margin: 36px 0 34px; color: #2d2924; font-size: clamp(1.05rem, 1.55vw, 1.28rem); line-height: 1.55; }
.casefile-theme .casefile-hero-actions { display: flex; align-items: stretch; gap: 22px; }
.casefile-theme .casefile-hero .coming-soon { min-width: 192px; padding: 8px 16px; border-color: rgba(53,43,33,.45); border-radius: 5px; background: rgba(255,255,255,.23); box-shadow: none; }
.casefile-theme .casefile-hero .coming-soon .eyebrow { margin-bottom: 3px; font-size: .58rem; }
.casefile-theme .casefile-hero .coming-soon strong { font-family: var(--sans); font-size: .84rem; }
.casefile-theme .casefile-hero .coming-soon small { font-size: .62rem; }
.casefile-theme .proof-strip { display: grid; grid-template-columns: repeat(3, max-content); gap: 0; margin: 52px 0 0; padding: 0; list-style: none; }
.casefile-theme .proof-strip li { display: flex; align-items: center; gap: 10px; padding: 0 27px; border-left: 1px solid var(--line); color: var(--ink); font-size: .8rem; font-weight: 650; }
.casefile-theme .proof-strip li:first-child { padding-left: 0; border: 0; }
.casefile-theme .proof-icon { width: 28px; height: 28px; display: grid; flex: 0 0 28px; place-items: center; color: var(--accent); }
.casefile-theme .proof-icon svg { display: block; width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.casefile-theme .hero-visual { position: relative; justify-self: center; width: min(100%, 350px); isolation: isolate; }
.casefile-theme .paper-stack { position: absolute; inset: 13px -15px -12px 14px; z-index: -2; border: 1px solid #b9a68b; background: #e7d8bf; box-shadow: 0 14px 28px rgba(47,37,28,.2); transform: rotate(1.7deg); }
.casefile-theme .paper-stack-middle { inset: 8px -7px -7px 7px; z-index: -1; background: #efe1c9; transform: rotate(.7deg); }
.casefile-theme .evidence-file { position: relative; margin: 0; padding: 22px 23px 18px; border: 1px solid #b9a68b; background: #efe2cb; box-shadow: 0 16px 40px rgba(47,37,28,.2); transform: rotate(-.7deg); }
.casefile-theme .evidence-file::after, .casefile-theme .method-steps li::after { position: absolute; width: 120px; height: 120px; border: 10px solid rgba(124,75,39,.1); border-radius: 50%; pointer-events: none; }
.casefile-theme .evidence-file::after { content: "SOLVED"; left: -58px; bottom: -54px; display: grid; place-items: center; box-shadow: inset 0 0 0 3px rgba(124,75,39,.1); color: rgba(124,75,39,.18); font: 800 1rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; text-indent: .12em; transform: rotate(-12deg); }
.casefile-theme .paperclip { position: absolute; top: -13px; left: 18px; width: 18px; height: 66px; border: 3px solid #50483e; border-radius: 13px; transform: rotate(-4deg); box-shadow: inset 0 0 0 2px #d7c5aa; }
.casefile-theme .evidence-heading { min-height: 68px; display: flex; justify-content: space-between; gap: 14px; padding-left: 32px; color: var(--accent); font: 800 .75rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.casefile-theme .stamp { display: inline-block; padding: 5px 9px; border: 2px solid currentColor; color: var(--accent); font: 800 .64rem/1.15 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .05em; text-align: center; text-transform: uppercase; transform: rotate(-5deg); }
.casefile-theme .screen-mat { width: min(100%, 240px); margin: 0 auto; padding: 8px; border: 1px solid #c6b9a5; border-radius: 10px; background: rgba(255,255,255,.48); box-shadow: 0 8px 18px rgba(52,41,31,.1); }
.casefile-theme .screen-mat picture { display: block; }
.casefile-theme .screen-mat img { display: block; width: 100%; height: auto; max-height: none; aspect-ratio: 720 / 1564; object-fit: cover; border-radius: 6px; background: #f5f5f7; }
.casefile-theme .evidence-file figcaption { margin-top: 13px; padding-top: 12px; border-top: 1px solid var(--line); font: 500 .69rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; text-align: center; }

.casefile-theme .editorial-section { display: grid; grid-template-columns: minmax(250px, .32fr) minmax(0, .68fr); gap: clamp(40px, 6vw, 90px); padding: clamp(72px, 8vw, 112px) clamp(40px, 5vw, 78px); border-bottom: 1px solid var(--line); }
.casefile-theme .section-intro h2, .casefile-theme .final-report h2 { margin: 0; font-size: clamp(3rem, 5vw, 5.2rem); line-height: .96; letter-spacing: -.035em; text-wrap: balance; }
.casefile-theme .section-intro > p:last-child { max-width: 360px; margin: 28px 0 0; color: var(--ink-soft); }
.casefile-theme .method-steps { width: 100%; max-width: 900px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-self: center; justify-self: end; margin: 0; padding: 0; list-style: none; }
.casefile-theme .method-steps li { position: relative; min-width: 0; display: grid; grid-template-columns: 82px minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 16px; align-items: center; overflow: hidden; padding: 18px 18px 20px; border: 1px solid #bcae98; background: rgba(255,255,255,.25); box-shadow: 0 9px 20px rgba(52,41,31,.08); }
.casefile-theme .method-steps li::after { content: ""; right: -72px; bottom: -75px; }
.casefile-theme .step-number { grid-column: 1 / -1; grid-row: 1; display: block; padding-bottom: 9px; border-bottom: 1px solid var(--line); color: var(--accent); font: 500 1.8rem/1 var(--serif); }
.casefile-theme .step-visual { position: relative; grid-column: 1; grid-row: 2; width: 82px; height: 82px; margin: 13px 0 0; }
.casefile-theme .step-prop { display: grid; place-items: center; }
.casefile-theme .step-prop picture { position: absolute; inset: 0; display: grid; place-items: center; }
.casefile-theme .step-prop img { position: absolute; inset: 0; display: block; width: auto; height: auto; max-width: 100%; max-height: 100%; margin: auto; object-fit: contain; filter: drop-shadow(0 8px 7px rgba(52,41,31,.18)); }
.casefile-theme .method-steps li:first-child .step-prop img { transform: scale(.86); }
.casefile-theme .method-steps li > div:last-child { grid-column: 2; grid-row: 2; align-self: center; margin-top: 13px; }
.casefile-theme .method-steps h3, .casefile-theme .evidence-ledger h3 { margin: 0; font-size: 1.08rem; }
.casefile-theme .method-steps p, .casefile-theme .evidence-ledger p { margin: 6px 0 0; color: var(--ink-soft); font-size: .77rem; }

.casefile-theme .register { background: rgba(255,255,255,.1); }
.casefile-theme .evidence-ledger { border: 1px solid #bcae98; }
.casefile-theme .evidence-ledger article { display: grid; grid-template-columns: 82px 1fr 128px; align-items: center; min-height: 140px; border-bottom: 1px solid #bcae98; }
.casefile-theme .evidence-ledger article:last-child { border-bottom: 0; }
.casefile-theme .ledger-number { display: grid; place-items: center; align-self: stretch; border-right: 1px solid #bcae98; color: var(--accent); font: 500 1.65rem var(--serif); }
.casefile-theme .evidence-ledger article > div { padding: 25px 30px; }
.casefile-theme .evidence-ledger .stamp { justify-self: center; }
.casefile-theme .stamp-small { font-size: .62rem; }
.casefile-theme .gallery { grid-template-columns: minmax(340px, .32fr) minmax(0, .68fr); gap: clamp(40px, 4vw, 64px); overflow: visible; }
.casefile-theme .gallery .section-intro { position: relative; z-index: 2; min-width: 0; }
.casefile-theme .gallery .section-intro h2 { max-width: 7.2em; font-size: clamp(3rem, 3.4vw, 3.8rem); }
.casefile-theme .evidence-gallery { width: 100%; max-width: 790px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: end; justify-self: end; }
.casefile-theme .capture { position: relative; margin: 0; padding: 18px 18px 22px; border: 1px solid #b9a68b; background: #ecdec5; box-shadow: 0 15px 26px rgba(47,37,28,.2); }
.casefile-theme .capture-one { transform: rotate(-1.7deg); }.casefile-theme .capture-two { transform: translateY(-22px) rotate(.3deg); }.casefile-theme .capture-three { transform: rotate(1.5deg); }
.casefile-theme .capture figcaption { min-height: 52px; font: 700 .66rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.casefile-theme .capture figcaption strong { display: block; color: var(--accent); letter-spacing: .08em; }.casefile-theme .capture figcaption span { display: block; margin-top: 3px; }
.casefile-theme .capture picture { display: block; }
.casefile-theme .capture img { display: block; width: 100%; height: auto; max-height: none; aspect-ratio: 720 / 1564; object-fit: cover; object-position: center; border: 1px solid rgba(72,58,43,.18); background: #f5f5f7; }
.casefile-theme .casefile-question { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 100px); padding: 84px clamp(40px, 5vw, 78px); border-bottom: 1px solid var(--line); }
.casefile-theme .casefile-question h2 { font-size: clamp(2.4rem, 4vw, 4rem); }
.casefile-theme .casefile-question > div:last-child { padding-top: 38px; color: var(--ink-soft); }
.casefile-theme .casefile-question a { color: var(--accent-dark); font-weight: 750; }
.casefile-theme .final-report { max-width: 1000px; margin: 0 auto; padding: 92px 40px 86px; text-align: center; }
.casefile-theme .final-report .section-index { display: inline-block; }.casefile-theme .final-report h2 { max-width: 900px; margin-inline: auto; font-size: clamp(3rem, 5.3vw, 5.25rem); }
.casefile-theme .final-report dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 680px; margin: 42px auto 36px; border-top: 1px solid var(--line); text-align: left; }
.casefile-theme .final-report dl div { display: grid; align-content: start; gap: 5px; min-width: 0; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.casefile-theme .final-report dl div:nth-child(odd) { border-right: 1px solid var(--line); }
.casefile-theme .final-report dt { color: var(--ink-soft); font-size: .76rem; }
.casefile-theme .final-report dd { margin: 0; overflow-wrap: anywhere; font: 700 .72rem/1.35 ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.casefile-theme .report-actions { display: flex; justify-content: center; align-items: center; gap: 22px; }.casefile-theme .report-actions > span { color: var(--ink-soft); font-size: .8rem; }

/* Case-file treatment for localized subpages */
.casefile-theme .page-header { width: auto; margin: 0; padding: clamp(64px, 7vw, 104px) clamp(28px, 5vw, 78px) 56px; border-bottom: 1px solid var(--ink); }
.casefile-theme .page-header-grid { grid-template-columns: minmax(0, 1.25fr) minmax(260px, .55fr); gap: clamp(40px, 7vw, 100px); }
.casefile-theme .page-header h1 { max-width: 930px; font-size: clamp(3.4rem, 6.3vw, 6rem); line-height: .93; letter-spacing: -.045em; }
.casefile-theme .page-header .dek { padding-left: 24px; border-left: 2px solid var(--accent); color: var(--ink-soft); font-family: var(--serif); font-size: 1.23rem; }
.casefile-theme .page-meta { margin-top: 46px; padding-top: 17px; border-top: 1px solid var(--line); font: 700 .66rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .07em; }
.casefile-theme .content-crumb { width: auto; margin: 0; padding: 18px clamp(28px, 5vw, 78px); border-bottom: 1px solid var(--line); font: 700 .69rem ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.casefile-theme .article { width: min(calc(100% - 56px), 1120px); grid-template-columns: 210px minmax(0, var(--reading)); gap: clamp(48px, 8vw, 120px); padding: 78px 0 124px; }
.casefile-theme .article-nav { top: 26px; padding: 22px 20px; border: 1px solid #bcae98; background: rgba(255,255,255,.18); }
.casefile-theme .article-nav a { margin: 0; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: .75rem; }
.casefile-theme .article-nav a:last-child { border-bottom: 0; }
.casefile-theme .prose > p:first-child { font-size: 1.48rem; }
.casefile-theme .prose h2 { border-color: var(--ink); font-size: clamp(2rem, 3.5vw, 2.65rem); }
.casefile-theme .prose blockquote, .casefile-theme .answer-box { background: rgba(255,255,255,.26); }
.casefile-theme .answer-box, .casefile-theme .game-plug, .casefile-theme .support-panel { position: relative; border-radius: 0; box-shadow: 7px 7px 0 var(--paper-deep); }
.casefile-theme .game-plug { border-color: var(--accent); background: #e7d6be; }
.casefile-theme .guide-list { width: auto; padding: 70px clamp(28px, 5vw, 78px) 120px; }
.casefile-theme .guide-card { grid-template-columns: 120px 1fr auto; padding: 30px 18px; border-top-color: var(--ink); transition: background .2s ease, transform .2s ease; }
.casefile-theme .guide-card:hover { color: var(--ink); background: rgba(255,255,255,.24); transform: translateX(5px); }
.casefile-theme .guide-card h2 { font-size: clamp(1.55rem, 3vw, 2.35rem); }
.casefile-theme .guide-card > strong, .casefile-theme .guide-arrow { color: var(--accent); }
.casefile-theme .fact-sheet, .casefile-theme .related-grid a, .casefile-theme .clue-diagram, .casefile-theme .article-graphic { background: rgba(255,255,255,.2); }
.casefile-theme .solver-shell, .casefile-theme .tool-explainer, .casefile-theme .number-solver { width: auto; margin-inline: clamp(24px, 5vw, 78px); }
.casefile-theme .solver-workbench, .casefile-theme .number-workbench, .casefile-theme .paper-upload { background: rgba(255,255,255,.24); box-shadow: 8px 8px 0 var(--paper-deep); }
.casefile-theme .photo-drop { background: rgba(255,255,255,.28); }
.casefile-theme .tool-explainer { border-top-color: var(--ink); }

/* printable case archive */
.casefile-theme .printable-intro,
.casefile-theme .printable-starters,
.casefile-theme .printable-catalog,
.casefile-theme .printable-faq {
  padding: clamp(68px, 7vw, 104px) clamp(28px, 5vw, 78px);
  border-bottom: 1px solid var(--line);
}
.casefile-theme .printable-intro { display: grid; grid-template-columns: minmax(260px, .55fr) minmax(0, 1fr); gap: clamp(42px, 8vw, 120px); align-items: start; }
.casefile-theme .printable-intro h2,
.casefile-theme .printable-section-heading h2,
.casefile-theme .printable-faq > h2 { margin: 0; font-size: clamp(2.7rem, 4.8vw, 4.8rem); line-height: .96; letter-spacing: -.035em; }
.casefile-theme .printable-intro .answer-box { margin: 0; }
.casefile-theme .printable-section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .42fr); gap: clamp(40px, 7vw, 90px); align-items: end; margin-bottom: 48px; }
.casefile-theme .printable-section-heading > p { max-width: 420px; margin: 0 0 4px; color: var(--ink-soft); }
.casefile-theme .printable-starter-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--ink); }
.casefile-theme .printable-starter-grid a { position: relative; min-height: 180px; display: flex; flex-direction: column; justify-content: flex-end; padding: 28px; border-right: 1px solid var(--line); text-decoration: none; transition: background .2s ease, transform .2s ease; }
.casefile-theme .printable-starter-grid a:last-child { border-right: 0; }
.casefile-theme .printable-starter-grid a:hover { color: var(--ink); background: rgba(255,255,255,.27); transform: translateY(-4px); }
.casefile-theme .printable-starter-grid span { position: absolute; top: 24px; color: var(--accent); font: 800 .68rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.casefile-theme .printable-starter-grid strong { font: 500 clamp(1.6rem, 2.8vw, 2.45rem)/1.05 var(--serif); }
.casefile-theme .printable-starter-grid small { margin-top: 12px; color: var(--ink-soft); font: 700 .67rem ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.casefile-theme .printable-catalog { background: rgba(255,255,255,.09); }
.casefile-theme .printable-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 22px; }
.casefile-theme .printable-card { min-width: 0; overflow: hidden; border: 1px solid #bcae98; background: rgba(255,255,255,.24); box-shadow: 7px 8px 0 rgba(191,169,138,.36); }
.casefile-theme .printable-card-image { display: block; overflow: hidden; aspect-ratio: 4 / 3; border-bottom: 1px solid #bcae98; background: #e8dcc9; }
.casefile-theme .printable-card-image img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .35s ease; }
.casefile-theme .printable-card:hover .printable-card-image img { transform: scale(1.025); }
.casefile-theme .printable-card-copy { padding: 22px 24px 25px; }
.casefile-theme .printable-card-copy > p { display: flex; justify-content: space-between; gap: 20px; margin: 0 0 10px; color: var(--accent); font: 800 .63rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .07em; text-transform: uppercase; }
.casefile-theme .printable-card h3 { margin: 0; font-size: clamp(1.5rem, 2.3vw, 2rem); line-height: 1.05; }
.casefile-theme .printable-card h3 a { text-decoration: none; }
.casefile-theme .printable-card dl { display: grid; grid-template-columns: repeat(3, 1fr); margin: 22px 0; border-block: 1px solid var(--line); }
.casefile-theme .printable-card dl div { min-width: 0; padding: 10px 7px; border-right: 1px solid var(--line); }
.casefile-theme .printable-card dl div:first-child { padding-left: 0; }
.casefile-theme .printable-card dl div:last-child { border-right: 0; }
.casefile-theme .printable-card dt { color: var(--ink-soft); font-size: .6rem; font-weight: 750; text-transform: uppercase; }
.casefile-theme .printable-card dd { margin: 3px 0 0; font: 750 .7rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.casefile-theme .printable-card-link { color: var(--accent-dark); font-size: .78rem; font-weight: 800; }
.casefile-theme .printable-method { background: rgba(255,255,255,.03); }
.casefile-theme .printable-rule-list { align-self: center; margin: 0; padding: 0; border-block: 1px solid var(--ink); list-style: none; }
.casefile-theme .printable-rule-list li { display: grid; grid-template-columns: 72px 1fr; gap: 24px; align-items: center; min-height: 126px; padding: 22px 10px; border-bottom: 1px solid var(--line); }
.casefile-theme .printable-rule-list li:last-child { border-bottom: 0; }
.casefile-theme .printable-rule-list li > span { color: var(--accent); font: 500 2rem var(--serif); }
.casefile-theme .printable-rule-list h3 { margin: 0; font-size: 1.45rem; }
.casefile-theme .printable-rule-list p { margin: 6px 0 0; color: var(--ink-soft); }
.casefile-theme .printable-faq { max-width: none; }
.casefile-theme .printable-faq > h2 { margin-bottom: 44px; }
.casefile-theme .printable-faq article { display: grid; grid-template-columns: minmax(240px, .62fr) minmax(0, 1fr); gap: clamp(32px, 7vw, 100px); padding: 27px 0; border-top: 1px solid var(--line); }
.casefile-theme .printable-faq h3 { margin: 0; font-size: 1.3rem; }
.casefile-theme .printable-faq article p { max-width: 720px; margin: 0; color: var(--ink-soft); }

.casefile-theme .printable-case-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .48fr); gap: clamp(44px, 7vw, 100px); align-items: start; padding: clamp(62px, 7vw, 96px) clamp(28px, 5vw, 78px); border-bottom: 1px solid var(--line); }
.casefile-theme .printable-preview { position: relative; max-width: 690px; margin: 0; padding: 18px; border: 1px solid #b9a68b; background: #eadbc2; box-shadow: 10px 14px 0 rgba(191,169,138,.44); transform: rotate(-.35deg); }
.casefile-theme .printable-preview img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: top center; border: 1px solid rgba(72,58,43,.2); background: #fffdf8; }
.casefile-theme .printable-preview figcaption { padding: 15px 4px 2px; color: var(--ink-soft); font: 650 .67rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.casefile-theme .printable-download-card { position: sticky; top: 24px; padding: 30px; border: 1px solid #bcae98; background: rgba(255,255,255,.28); box-shadow: 8px 8px 0 var(--paper-deep); }
.casefile-theme .printable-download-card h2 { margin: 0; font-size: clamp(2.35rem, 4vw, 3.7rem); line-height: .95; }
.casefile-theme .printable-download-card dl { margin: 30px 0; border-top: 1px solid var(--ink); }
.casefile-theme .printable-download-card dl div { display: flex; justify-content: space-between; gap: 22px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.casefile-theme .printable-download-card dt { color: var(--ink-soft); }
.casefile-theme .printable-download-card dd { margin: 0; font: 800 .7rem ui-monospace, SFMono-Regular, Menlo, monospace; text-align: right; text-transform: uppercase; }
.casefile-theme .printable-download { width: 100%; }
.casefile-theme .printable-download-options { display: grid; gap: 12px; }
.casefile-theme .printable-download small,
.casefile-theme .printable-download-secondary small { display: block; margin-left: 8px; font: 650 .58rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .02em; text-transform: none; }
.casefile-theme .printable-download-secondary { min-height: 50px; display: flex; align-items: center; justify-content: center; padding: 9px 17px; border: 1px solid var(--ink); color: var(--ink); font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-align: center; text-decoration: none; text-transform: uppercase; transition: background .2s ease, transform .2s ease; }
.casefile-theme .printable-download-secondary:hover { color: var(--ink); background: rgba(255,255,255,.38); transform: translateY(-2px); }
.casefile-theme .printable-download-card > p:last-child { margin: 13px 0 0; color: var(--ink-soft); font-size: .72rem; text-align: center; }
.casefile-theme .printable-case-content { width: min(calc(100% - 56px), var(--reading)); margin: 0 auto; padding: 76px 0 124px; }
.casefile-theme .printable-case-content .answer-box { margin: 0 0 72px; }
.casefile-theme .printable-case-content .answer-box h2 { margin-top: 0; }
.casefile-theme .printable-case-content .game-plug { margin-block: 70px; }

.casefile-theme .site-footer { margin: 0; padding: 70px clamp(28px, 5vw, 78px) 24px; border-top: 1px solid var(--ink); }
.casefile-theme .footer-grid { width: auto; grid-template-columns: 1.4fr .75fr .75fr 1.1fr; gap: 40px; }
.casefile-theme .footer-grid nav { padding-left: 22px; border-left: 1px solid var(--line); }
.casefile-theme .footer-grid a { margin: 7px 0; font-size: .78rem; }
.casefile-theme .footer-intro h2 { font-size: 2.1rem; }
.casefile-theme .footer-base { width: auto; margin-top: 48px; font: 700 .65rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .05em; }

@media (max-width: 1120px) {
  .casefile-theme .casefile-header { grid-template-columns: 1fr auto; }
  .casefile-theme .casefile-nav, .casefile-theme .casefile-header-actions { display: none; }
  .casefile-theme .casefile-mobile-menu { position: relative; display: block; justify-self: end; }
  .casefile-theme .casefile-mobile-menu summary { width: 42px; height: 42px; display: grid; place-content: center; gap: 5px; cursor: pointer; list-style: none; }
  .casefile-theme .casefile-mobile-menu summary::-webkit-details-marker { display: none; }
  .casefile-theme .casefile-mobile-menu summary span { display: block; width: 23px; height: 2px; background: var(--ink); }
  .casefile-theme .casefile-mobile-menu nav { position: absolute; right: 0; top: 51px; z-index: 20; width: 230px; display: grid; padding: 14px 20px; border: 1px solid var(--line); background: var(--white); box-shadow: 0 14px 30px rgba(47,37,28,.2); }
  .casefile-theme .casefile-mobile-menu nav a { padding: 10px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
  .casefile-theme .casefile-hero { grid-template-columns: minmax(0, 1fr) 320px; gap: 38px; }
  .casefile-theme .proof-strip { grid-template-columns: 1fr; gap: 10px; }.casefile-theme .proof-strip li { padding: 0; border: 0; }
  .casefile-theme .method-steps { gap: 12px; }.casefile-theme .method-steps li { padding: 22px 18px; }
  .casefile-theme .gallery { grid-template-columns: 1fr; gap: 48px; }.casefile-theme .gallery .section-intro h2 { max-width: 9em; }.casefile-theme .evidence-gallery { max-width: 820px; justify-self: center; }
  .casefile-theme .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .casefile-theme .printable-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .casefile-theme .printable-case-layout { grid-template-columns: minmax(0, 1fr) minmax(280px, .55fr); gap: 40px; }
}

@media (max-width: 800px) {
  .casefile-theme .site-frame { width: 100%; margin: 0; border: 0; border-radius: 0; }
  .casefile-theme .casefile-header { min-height: 62px; padding: 0 18px; }
  .casefile-theme .casefile-brand-logo { width: 142px; }
  .casefile-theme .casefile-hero { min-height: auto; grid-template-columns: 1fr; gap: 48px; padding: 45px 20px 62px; }
  .casefile-theme .casefile-hero h1 { font-size: clamp(3rem, 14vw, 4.8rem); overflow-wrap: anywhere; }
  .casefile-theme.locale-ru .casefile-hero h1, .casefile-theme.locale-uk .casefile-hero h1 { font-size: clamp(2.35rem, 11.5vw, 3.5rem); overflow-wrap: normal; }
  .casefile-theme .hero-lead { margin: 25px 0; font-size: 1rem; }
  .casefile-theme .casefile-hero-actions { flex-direction: column; align-items: flex-start; }
  .casefile-theme .proof-strip { margin-top: 35px; }.casefile-theme .proof-icon { width: 24px; height: 24px; flex-basis: 24px; }
  .casefile-theme .hero-visual { width: min(88vw, 360px); }.casefile-theme .evidence-file { padding: 18px; }.casefile-theme .screen-mat { width: min(100%, 240px); }
  .casefile-theme .editorial-section { grid-template-columns: 1fr; gap: 42px; padding: 68px 20px; }
  .casefile-theme .section-intro h2 { font-size: clamp(3rem, 13vw, 4.7rem); }
  .casefile-theme .method-steps { grid-template-columns: 1fr; }.casefile-theme .method-steps li { grid-template-columns: 42px 72px minmax(0, 1fr); grid-template-rows: auto; gap: 12px; align-items: center; padding: 15px; }
  .casefile-theme .step-number { grid-column: 1; grid-row: 1; padding: 0; border: 0; font-size: 1.45rem; }.casefile-theme .step-visual { grid-column: 2; grid-row: 1; width: 72px; height: 66px; margin: 0; }
  .casefile-theme .method-steps li > div:last-child { grid-column: 3; grid-row: 1; margin: 0; }.casefile-theme .method-steps h3 { font-family: var(--sans); font-size: .88rem; font-weight: 750; }.casefile-theme .method-steps p { margin-top: 3px; padding: 0; font-size: .74rem; }
  .casefile-theme .evidence-ledger article { grid-template-columns: 43px 1fr auto; min-height: 76px; }.casefile-theme .ledger-number { font-size: 1rem; }.casefile-theme .evidence-ledger article > div { padding: 15px 12px; }.casefile-theme .evidence-ledger h3 { font-family: var(--sans); font-size: .86rem; font-weight: 750; }.casefile-theme .evidence-ledger p { display: none; }.casefile-theme .evidence-ledger .stamp { margin-right: 8px; padding: 3px 5px; font-size: .48rem; }
  .casefile-theme .gallery { overflow: visible; }.casefile-theme .evidence-gallery { grid-template-columns: 1fr; gap: 18px; }.casefile-theme .capture, .casefile-theme .capture-one, .casefile-theme .capture-two, .casefile-theme .capture-three { width: min(86vw, 350px); margin: 0 auto; transform: none; }
  .casefile-theme .casefile-question { grid-template-columns: 1fr; gap: 12px; padding: 68px 20px; }.casefile-theme .casefile-question > div:last-child { padding-top: 0; }
  .casefile-theme .final-report { padding: 78px 20px 72px; }.casefile-theme .final-report dl { grid-template-columns: 1fr; }.casefile-theme .final-report dl div:nth-child(odd) { border-right: 0; }.casefile-theme .report-actions { flex-direction: column; }
  .casefile-theme .page-header { padding: 54px 20px 38px; }.casefile-theme .page-header-grid { grid-template-columns: 1fr; gap: 28px; }.casefile-theme .page-header h1 { font-size: clamp(3rem, 13vw, 4.7rem); }.casefile-theme .page-header .dek { font-size: 1.05rem; }.casefile-theme .page-meta { flex-wrap: wrap; gap: 10px 22px; }
  .casefile-theme .content-crumb { padding: 14px 20px; overflow-wrap: anywhere; }
  .casefile-theme .article { width: calc(100% - 40px); grid-template-columns: 1fr; gap: 36px; padding: 52px 0 80px; }.casefile-theme .article-nav { position: static; }
  .casefile-theme .guide-list { padding: 48px 20px 80px; }.casefile-theme .guide-card { grid-template-columns: 44px 1fr; gap: 12px; padding: 24px 4px; }.casefile-theme .guide-card > strong, .casefile-theme .guide-arrow { display: none; }
  .casefile-theme .solver-shell, .casefile-theme .tool-explainer, .casefile-theme .number-solver { margin-inline: 20px; }
  .casefile-theme .printable-intro, .casefile-theme .printable-section-heading, .casefile-theme .printable-faq article, .casefile-theme .printable-case-layout { grid-template-columns: 1fr; }
  .casefile-theme .printable-intro, .casefile-theme .printable-starters, .casefile-theme .printable-catalog, .casefile-theme .printable-faq { padding: 62px 20px; }
  .casefile-theme .printable-section-heading { gap: 22px; margin-bottom: 34px; }
  .casefile-theme .printable-starter-grid, .casefile-theme .printable-grid { grid-template-columns: 1fr; }
  .casefile-theme .printable-starter-grid a { min-height: 150px; border-right: 0; border-bottom: 1px solid var(--line); }
  .casefile-theme .printable-starter-grid a:last-child { border-bottom: 0; }
  .casefile-theme .printable-card-image { aspect-ratio: 16 / 10; }
  .casefile-theme .printable-rule-list li { grid-template-columns: 50px 1fr; gap: 12px; }
  .casefile-theme .printable-faq article { gap: 10px; }
  .casefile-theme .printable-case-layout { padding: 54px 20px 68px; }
  .casefile-theme .printable-preview { padding: 12px; transform: none; }
  .casefile-theme .printable-download-card { position: static; }
  .casefile-theme .printable-case-content { width: calc(100% - 40px); padding: 58px 0 90px; }
  .casefile-theme .footer-grid { grid-template-columns: 1fr; }.casefile-theme .footer-grid nav { padding: 22px 0 0; border-left: 0; border-top: 1px solid var(--line); }
}

[dir="rtl"] .article, [dir="rtl"] .page-header-grid, [dir="rtl"] .hero { direction: rtl; }