@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/InterVariable.woff2") format("woff2-variations");
}

:root {
  --ivory: #f7f3e8;
  --ink: #202522;
  --green: #16a469;
  --green-dark: #0d7d4e;
  --blue: #2878b5;
  --yellow: #fdc101;
  --red: #d64545;
  --accent-red: #fc4528;
  --muted: #6e746f;
  --border: #d9d5c9;
  --white: #fff;
  --purple: #8b5fbf;
  --teal: #27a7a8;
  --shell: min(1320px, calc(100vw - 64px));
  --radius: 12px;
  --shadow: 5px 5px 0 rgba(32, 37, 34, .13);
  --ease: 180ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ivory); color: var(--ink); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 17px; line-height: 1.62; -webkit-font-smoothing: antialiased; }
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
button, input, select { font: inherit; }
button { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.06; letter-spacing: -.035em; }
h1 { font-size: clamp(2.7rem, 5.2vw, 4.25rem); }
h2 { font-size: clamp(2rem, 3.4vw, 3rem); }
h3 { font-size: 1.35rem; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
[hidden] { display: none !important; }
.shell { width: var(--shell); margin-inline: auto; }
.section { padding: 108px 0; }
.page-main { padding-block: 90px; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 9999; top: 12px; left: 12px; padding: 10px 16px; transform: translateY(-160%); border-radius: 8px; background: var(--ink); color: var(--white); }
.skip-link:focus { transform: none; }
.kicker { margin-bottom: 13px; color: var(--green-dark); font-size: .78rem; font-weight: 800; letter-spacing: .12em; line-height: 1.2; text-transform: uppercase; }
.lead { max-width: 760px; color: #454c47; font-size: clamp(1.1rem, 1.7vw, 1.32rem); line-height: 1.55; }
.eyebrow { display: flex; justify-content: space-between; gap: 15px; align-items: center; color: var(--muted); font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.case-label { color: var(--muted); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border: 2px solid var(--green); border-radius: 9px; background: var(--green); box-shadow: 3px 3px 0 rgba(32,37,34,.18); color: var(--white); font-size: .85rem; font-weight: 800; letter-spacing: .045em; line-height: 1.1; text-decoration: none; text-transform: uppercase; transition: transform var(--ease), box-shadow var(--ease), background var(--ease); cursor: pointer; }
.button:hover { transform: translateY(-2px); background: var(--green-dark); border-color: var(--green-dark); box-shadow: 5px 6px 0 rgba(32,37,34,.2); }
.button:hover span { transform: translateX(3px); }
.button span { transition: transform var(--ease); }
.button--secondary { border-color: var(--ink); background: var(--white); color: var(--ink); }
.button--secondary:hover { border-color: var(--ink); background: var(--ink); color: var(--white); }
.button--small { min-height: 42px; padding: 10px 15px; font-size: .7rem; }
.button--quiet { min-height: 42px; padding: 8px 16px; border-color: var(--border); background: transparent; box-shadow: none; color: var(--ink); }
.button--quiet:hover { border-color: var(--ink); background: var(--white); box-shadow: none; }
.button--quiet:disabled { opacity: .4; cursor: not-allowed; transform: none; }
.button--amazon { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.button--amazon:hover { background: #e4ae00; border-color: #e4ae00; }
.button--disabled { opacity: .65; cursor: not-allowed; background: var(--muted); border-color: var(--muted); box-shadow: none; }
.button-row { display: flex; flex-wrap: wrap; gap: 13px; }
.text-link { display: inline-block; color: var(--green-dark); font-size: .8rem; font-weight: 850; letter-spacing: .065em; text-decoration: none; text-transform: uppercase; }
.text-link span { display: inline-block; transition: transform var(--ease); }
.text-link:hover span { transform: translateX(4px); }
.difficulty { display: inline-flex; align-items: center; gap: 6px; }
.difficulty::before { width: 8px; height: 8px; border-radius: 50%; background: var(--green); content: ""; }
.difficulty--intermediate::before { background: var(--yellow); }
.difficulty--hard::before { background: var(--accent-red); }
.difficulty--expert::before { background: var(--purple); }

/* Header */
.site-header { position: relative; z-index: 100; border-bottom: 1px solid var(--border); background: rgba(247,243,232,.96); }
.site-header__inner { display: grid; grid-template-columns: 180px 1fr auto; gap: 28px; align-items: center; min-height: 78px; }
.site-logo { display: block; }
.site-logo img { width: 174px; height: auto; }
.site-nav { justify-self: center; }
.site-nav__list { display: flex; gap: clamp(16px, 2vw, 31px); align-items: center; margin: 0; padding: 0; list-style: none; }
.site-nav a { position: relative; font-size: .73rem; font-weight: 800; letter-spacing: .07em; text-decoration: none; text-transform: uppercase; }
.site-nav a::after { position: absolute; right: 0; bottom: -7px; left: 0; height: 2px; transform: scaleX(0); transform-origin: left; background: var(--green); content: ""; transition: transform var(--ease); }
.site-nav a:hover::after, .site-nav .current-menu-item a::after { transform: scaleX(1); }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; background: transparent; }
.nav-toggle > span:not(.screen-reader-text) { display: block; height: 2px; margin: 5px 0; background: var(--ink); transition: transform var(--ease), opacity var(--ease); }

/* Footer */
.site-footer { padding: 64px 0; background: var(--ink); color: #d9dedb; }
.site-footer__grid { display: grid; grid-template-columns: 1.5fr .8fr .8fr; gap: 70px; align-items: start; }
.site-footer__logo img { width: 190px; max-height: 54px; object-fit: contain; object-position: left center; }
.site-footer p { max-width: 430px; margin: 20px 0 0; color: #afb7b1; }
.site-footer nav { display: grid; gap: 9px; }
.site-footer nav a { font-weight: 700; text-decoration: none; }
.site-footer nav a:hover { color: var(--yellow); }
.site-footer__legal { margin-top: 0 !important; font-size: .86rem; }

/* Home */
.hero { position: relative; overflow: hidden; padding: 84px 0 96px; }
.hero::before { position: absolute; top: -260px; right: -180px; width: 660px; height: 660px; border: 86px solid rgba(22,164,105,.08); border-radius: 50%; content: ""; }
.hero__grid { display: grid; grid-template-columns: minmax(0,.86fr) minmax(480px,1.14fr); gap: clamp(55px,7vw,112px); align-items: center; }
.hero__copy { position: relative; z-index: 2; }
.hero h1 { max-width: 680px; margin-bottom: 27px; text-transform: uppercase; }
.hero .lead { margin-bottom: 34px; }
.hero-map { position: relative; transform: rotate(1.5deg); border: 9px solid var(--white); border-radius: 14px; background: var(--white); box-shadow: 12px 14px 0 rgba(32,37,34,.16); }
.hero-map img { width: 100%; border-radius: 7px; }
.hero-map__empty { display: grid; min-height: 540px; grid-template-columns: repeat(3,1fr); place-items: center; background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 33.333% 33.333%; }
.hero-map__empty span { width: 42px; height: 42px; border-radius: 50%; background: var(--blue); color: white; text-align: center; line-height: 42px; }
.hero-map__empty strong { position: absolute; bottom: 28px; left: 30px; padding: 10px 14px; border-radius: 7px; background: var(--white); }
.hero-route { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-route path { fill: none; stroke: var(--green); stroke-dasharray: 140; stroke-dashoffset: 140; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; animation: draw-route 2.3s .45s ease forwards; filter: drop-shadow(0 1px 1px #fff); }
.hero-route circle { fill: var(--red); opacity: 0; transform-box: fill-box; transform-origin: center; animation: marker-in .35s 2.5s ease forwards; }
@keyframes draw-route { to { stroke-dashoffset: 0; } }
@keyframes marker-in { from { opacity: 0; transform: scale(.25); } to { opacity: 1; transform: scale(1); } }
.how-strip { border-block: 1px solid var(--border); background: #eeeadf; }
.section-heading { max-width: 760px; margin-bottom: 50px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading--split { display: flex; max-width: none; justify-content: space-between; gap: 35px; align-items: end; }
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.step-card { position: relative; min-height: 350px; padding: 28px; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); box-shadow: 4px 5px 0 rgba(32,37,34,.09); }
.step-card__number { position: absolute; top: 24px; right: 25px; color: #b4bab5; font-size: .78rem; font-weight: 850; letter-spacing: .1em; }
.step-card h3 { margin: 27px 0 9px; text-transform: uppercase; }
.step-card p { margin-bottom: 0; color: var(--muted); }
.mini-grid { position: relative; width: 160px; height: 160px; border: 2px solid var(--ink); border-radius: 8px; background-image: linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 33.333% 33.333%; }
.mini-grid::before, .mini-grid::after { position: absolute; width: 21px; height: 21px; border-radius: 50%; content: ""; }
.mini-grid--time::before { top: 9px; left: 9px; background: var(--blue); }
.mini-grid--time::after { right: 9px; bottom: 9px; border: 4px solid var(--red); background: var(--white); }
.mini-grid--clues::before { top: 61px; left: 61px; background: var(--yellow); }
.mini-grid--clues::after { top: 14px; right: -20px; width: 80px; height: 10px; border-radius: 0; background: var(--green); box-shadow: 0 22px var(--blue), 0 44px var(--purple); }
.mini-grid--solve::before { top: 10px; left: 10px; width: 126px; height: 126px; border: 4px solid var(--green); border-top-color: transparent; border-left-color: transparent; border-radius: 0; }
.mini-grid--solve::after { right: 9px; bottom: 9px; background: var(--red); }
.featured-case { background: var(--green); color: var(--white); }
.featured-case .kicker, .featured-case .difficulty { color: #d6f5e8; }
.featured-case__card { display: grid; grid-template-columns: minmax(340px,.86fr) 1.14fr; overflow: hidden; border: 1px solid rgba(255,255,255,.4); border-radius: 14px; background: var(--white); box-shadow: 8px 9px 0 rgba(5,78,48,.45); color: var(--ink); }
.featured-case__map { position: relative; overflow: hidden; min-height: 420px; }
.featured-case__map img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.featured-case__map:hover img { transform: scale(1.03); }
.featured-case__copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(40px,6vw,80px); }
.featured-case__copy .lead { color: var(--ink); }
.featured-case__copy .button { align-self: start; }
.fact-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 10px 0 30px; }
.fact-row span { padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--muted); font-size: .78rem; font-weight: 700; }
.more-cases { background: var(--ivory); }
.cards-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 25px; }
.puzzle-card { height: 100%; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); box-shadow: 3px 4px 0 rgba(32,37,34,.09); transition: transform var(--ease), box-shadow var(--ease); }
.puzzle-card:hover { transform: translateY(-5px); box-shadow: 6px 8px 0 rgba(32,37,34,.12); }
.puzzle-card__image { display: block; aspect-ratio: 16/10; overflow: hidden; border-bottom: 1px solid var(--border); background: #e6e2d7; }
.puzzle-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform 350ms ease; }
.puzzle-card:hover .puzzle-card__image img { transform: scale(1.035); }
.puzzle-card__body { padding: 23px; }
.puzzle-card h3 { margin: 18px 0 10px; }
.puzzle-card h3 a { text-decoration: none; }
.puzzle-card__meta { color: var(--muted); font-size: .87rem; }
.map-placeholder { display: block; width: 100%; height: 100%; background-image: linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 20% 20%; }
.book-band { overflow: hidden; background: var(--blue); color: var(--white); }
.book-band .kicker { color: #d9f2ff; }
.book-band__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; }
.book-band__visual { position: relative; min-height: 500px; }
.book-band__visual img { position: absolute; z-index: 2; bottom: -180px; left: 20%; width: min(310px,70%); transform: rotate(-5deg); border: 4px solid var(--white); border-radius: 4px; box-shadow: 15px 18px 0 rgba(17,64,98,.45); }
.book-band__shape { position: absolute; top: 30px; left: 4%; width: 380px; height: 380px; border: 55px solid var(--yellow); border-radius: 50%; }

/* Shared page hero / archive */
.page-hero { padding: 100px 0 78px; border-bottom: 1px solid var(--border); }
.page-hero__narrow { max-width: 980px; margin-left: calc((100vw - min(1320px, calc(100vw - 64px))) / 2); }
.page-hero h1 { max-width: 900px; margin-bottom: 26px; text-transform: uppercase; }
.page-hero--archive { position: relative; overflow: hidden; }
.page-hero--archive::after { position: absolute; top: -60px; right: 5vw; width: 270px; height: 270px; transform: rotate(8deg); border: 3px solid var(--ink); background-image: linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 25% 25%; content: ""; opacity: .22; }
.section--archive { padding-top: 55px; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 42px; }
.filter-button { padding: 10px 17px; border: 1px solid var(--ink); border-radius: 999px; background: transparent; font-size: .75rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; cursor: pointer; transition: background var(--ease), color var(--ease); }
.filter-button:hover, .filter-button.is-active { background: var(--ink); color: var(--white); }
.cards-grid--archive { grid-template-columns: repeat(3,minmax(0,1fr)); }
.puzzle-card-wrap.is-pending { display: none; }
.puzzle-card-wrap[hidden] { display: none; }
.load-more-wrap { margin-top: 45px; text-align: center; }
.empty-state { padding: 28px; border: 1px dashed var(--border); border-radius: var(--radius); background: rgba(255,255,255,.5); color: var(--muted); text-align: center; }

/* Puzzle */
.puzzle-heading { padding: 70px 0 55px; }
.puzzle-heading h1 { max-width: 920px; margin-bottom: 22px; }
.puzzle-facts { display: flex; width: fit-content; margin-bottom: 55px; overflow: hidden; border: 1px solid var(--border); border-radius: 9px; background: var(--white); }
.puzzle-facts span { display: grid; min-width: 130px; padding: 13px 19px; border-right: 1px solid var(--border); }
.puzzle-facts span:last-child { border-right: 0; }
.puzzle-facts small { color: var(--muted); font-size: .63rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.puzzle-facts strong { font-size: .94rem; }
.difficulty-text { color: var(--green-dark); }
.difficulty-text--hard { color: var(--accent-red); }
.difficulty-text--expert { color: var(--purple); }
.investigation { padding-top: 35px; border-top: 1px solid var(--border); }
.investigation__grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(430px,.92fr); gap: clamp(50px,6vw,90px); align-items: start; }
.map-sticky { position: sticky; top: 25px; }
.puzzle-map { margin: 0; overflow: hidden; border: 7px solid var(--white); border-radius: 13px; background: var(--white); box-shadow: 8px 9px 0 rgba(32,37,34,.14); }
.puzzle-map img { width: 100%; }
.puzzle-map figcaption { padding: 11px 12px 5px; color: var(--muted); font-size: .72rem; }
.button--expand { width: 100%; margin-top: 20px; }
.case-file { display: grid; gap: 25px; }
.case-section { padding: clamp(27px,3.5vw,42px); border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); box-shadow: 3px 4px 0 rgba(32,37,34,.08); }
.case-section h2 { margin-bottom: 24px; font-size: clamp(1.65rem,2.8vw,2.35rem); }
.case-section--crime { display: grid; grid-template-columns: 54px 1fr; gap: 20px; border-color: #e4b1aa; background: #fff9f5; }
.case-section__icon { width: 52px; height: 52px; border: 4px solid var(--red); border-radius: 50%; color: var(--red); font-size: 1.6rem; font-weight: 900; line-height: 45px; text-align: center; }
.crime-facts { display: flex; flex-wrap: wrap; gap: 14px; margin: 0; }
.crime-facts div { min-width: 110px; padding: 10px 14px; border: 1px solid #eccfc9; border-radius: 7px; background: var(--white); }
.crime-facts dt { color: var(--muted); font-size: .65rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.crime-facts dd { margin: 0; font-weight: 850; }
.suspect-list { display: grid; gap: 11px; }
.suspect-row { display: grid; grid-template-columns: 41px 1fr; gap: 14px; align-items: center; padding: 13px; border: 1px solid var(--border); border-left: 5px solid var(--suspect-color); border-radius: 8px; }
.suspect-row__badge { width: 34px; height: 34px; border-radius: 50%; background: var(--suspect-color); color: var(--white); font-size: .8rem; font-weight: 900; line-height: 34px; text-align: center; }
.suspect-row h3 { margin: 0 0 3px; font-size: 1.05rem; }
.suspect-row p { margin: 0; color: var(--muted); font-size: .86rem; }
.clue-list { display: grid; gap: 14px; margin: 0; padding: 0; counter-reset: clues; list-style: none; }
.clue-list li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; counter-increment: clues; }
.clue-list li::before { width: 30px; height: 30px; border: 1px solid var(--ink); border-radius: 50%; content: counter(clues); font-size: .72rem; font-weight: 850; line-height: 29px; text-align: center; }
.puzzle-tools { display: grid; gap: 48px; padding-bottom: 100px; }
.route-tester, .answer-panel { padding: clamp(30px,5vw,62px); border: 1px solid var(--border); border-radius: 16px; background: var(--white); box-shadow: 5px 6px 0 rgba(32,37,34,.1); }
.route-tester__intro { display: flex; justify-content: space-between; gap: 40px; align-items: start; margin-bottom: 32px; }
.route-tester__intro h2, .answer-panel h2 { margin-bottom: 15px; }
.route-tester__intro p { max-width: 720px; margin-bottom: 0; color: var(--muted); }
.route-tester__rule { flex: 0 0 auto; padding: 8px 12px; border: 1px solid var(--green); border-radius: 999px; color: var(--green-dark); font-size: .73rem; font-weight: 850; text-transform: uppercase; }
.route-controls { display: flex; flex-wrap: wrap; gap: 15px; align-items: end; margin-bottom: 28px; padding: 18px; border-radius: 9px; background: var(--ivory); }
.route-controls label { display: grid; gap: 4px; color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.route-controls select, .route-controls input, .location-field input { min-height: 44px; padding: 8px 12px; border: 1px solid var(--border); border-radius: 7px; background: var(--white); color: var(--ink); }
.route-actions { display: flex; gap: 8px; margin-left: auto; }
.route-tester__layout { display: grid; grid-template-columns: minmax(300px,720px) 1fr; gap: 30px; align-items: start; }
.route-grid-wrap { width: min(100%,720px); overflow: auto; }
.route-grid { display: grid; width: 100%; aspect-ratio: 1; gap: 2px; padding: 2px; border: 2px solid var(--ink); border-radius: 7px; background: var(--ink); }
.route-cell { position: relative; min-width: 34px; padding: 0; border: 0; background: #f1eee5; color: var(--muted); font-size: clamp(.55rem,1vw,.78rem); cursor: pointer; }
.route-cell:hover { background: #e4e0d4; }
.route-cell.is-blocked { background: repeating-linear-gradient(45deg,#dad6cb,#dad6cb 5px,#c5c0b5 5px,#c5c0b5 10px); color: #5f655f; cursor: not-allowed; }
.route-cell.is-route { background: color-mix(in srgb, var(--route-color) 22%, white); color: var(--ink); font-weight: 850; }
.route-cell.is-route::after { position: absolute; inset: 27%; border-radius: 50%; background: var(--route-color); content: ""; }
.route-cell.is-current::after { inset: 19%; box-shadow: 0 0 0 3px var(--white); }
.route-cell.is-start::before { position: absolute; z-index: 2; top: 3px; left: 4px; content: "S"; color: var(--route-color); font-size: .6rem; font-weight: 900; }
.route-summary { display: grid; gap: 5px; padding: 20px; border: 1px solid var(--border); border-radius: 9px; }
.route-summary strong { font-size: 1.25rem; }
.route-summary span { color: var(--green-dark); font-weight: 800; }
.route-summary p { margin: 15px 0 0; color: var(--muted); font-size: .83rem; }
.answer-panel { background: var(--ink); color: var(--white); }
.answer-panel .kicker { color: #71d9ae; }
.answer-panel form { display: flex; flex-wrap: wrap; gap: 24px; align-items: end; }
.suspect-choices { display: flex; flex: 1 1 500px; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; border: 0; }
.suspect-choices legend { width: 100%; margin-bottom: 7px; color: #b9c0bb; font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.suspect-choice { display: flex; gap: 8px; align-items: center; padding: 10px 13px; border: 1px solid #626964; border-radius: 8px; cursor: pointer; }
.suspect-choice:has(input:checked) { border-color: var(--suspect-color); background: color-mix(in srgb,var(--suspect-color) 28%,transparent); }
.suspect-choice input { position: absolute; opacity: 0; }
.suspect-choice__dot { width: 14px; height: 14px; border: 3px solid var(--suspect-color); border-radius: 50%; }
.suspect-choice:has(input:checked) .suspect-choice__dot { background: var(--suspect-color); box-shadow: inset 0 0 0 2px var(--ink); }
.location-field { display: grid; min-width: 170px; gap: 5px; color: #b9c0bb; font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.location-field input { color: var(--ink); text-transform: uppercase; }
.answer-feedback { min-height: 25px; margin-top: 18px; color: #f3c578; font-weight: 700; }
.solved-state { display: grid; grid-template-columns: 58px 1fr auto; gap: 20px; align-items: center; margin-top: 28px; padding-top: 28px; border-top: 1px solid #565d58; }
.solved-state__mark { width: 52px; height: 52px; border-radius: 50%; background: var(--green); font-size: 1.5rem; font-weight: 900; line-height: 52px; text-align: center; }
.solved-state h3 { margin: 0; }
.solution { margin-top: 28px; padding-top: 30px; border-top: 1px solid #565d58; }
.solution__copy p { color: #b9c0bb; }
.solution-route { margin-top: 12px; padding: 15px; border: 1px solid #59605b; border-left: 5px solid var(--route-color); border-radius: 7px; }
.solution-route strong { display: block; margin-bottom: 7px; }
.solution-route ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.solution-route li { padding: 4px 8px; border-radius: 4px; background: #343a36; font-size: .75rem; }
.case-navigation { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; padding-block: 35px 80px; border-top: 1px solid var(--border); }
.case-navigation div { display: grid; }
.case-navigation small { color: var(--muted); font-size: .66rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.case-navigation a { font-weight: 800; text-decoration: none; }
.case-navigation__random { text-align: center; }
.case-navigation__next { text-align: right; }
.puzzle-book-cta { padding: 48px 0; background: var(--blue); color: var(--white); }
.puzzle-book-cta .kicker { color: #cfeaff; }
.puzzle-book-cta__inner { display: flex; justify-content: space-between; gap: 35px; align-items: center; }
.puzzle-book-cta h2 { max-width: 780px; margin: 0; }
.map-dialog { width: min(96vw,1100px); max-width: none; height: min(95vh,1100px); max-height: none; padding: 55px 18px 18px; border: 0; border-radius: 10px; background: var(--ink); }
.map-dialog::backdrop { background: rgba(16,20,17,.88); }
.map-dialog__close { position: absolute; top: 11px; right: 16px; border: 0; background: none; color: var(--white); font-size: .85rem; font-weight: 800; cursor: pointer; }
.map-dialog__canvas { height: 100%; overflow: auto; }
.map-dialog__canvas img { max-width: none; width: max(100%,900px); }

/* How to play */
.instruction-flow { padding-block: 45px 120px; }
.instruction-step { display: grid; grid-template-columns: 70px 1fr minmax(320px,.8fr); gap: 45px; align-items: center; padding: 65px 0; border-bottom: 1px solid var(--border); }
.instruction-step--reverse { grid-template-columns: 70px minmax(320px,.8fr) 1fr; }
.instruction-step--reverse .instruction-step__copy { grid-column: 3; }
.instruction-step--reverse > :last-child { grid-row: 1; grid-column: 2; }
.instruction-step__number { align-self: start; color: #abb0ac; font-size: 1rem; font-weight: 900; }
.instruction-step__copy { max-width: 620px; }
.instruction-step__copy ul { padding-left: 20px; }
.instruction-step__copy li::marker { color: var(--green); }
.instruction-image { margin: 0; overflow: hidden; border: 7px solid var(--white); border-radius: 10px; box-shadow: var(--shadow); }
.instruction-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.instruction-card--text { position: relative; display: grid; min-height: 250px; place-content: center; overflow: hidden; border: 2px solid var(--ink); border-radius: 10px; background-image: linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 25% 25%; text-align: center; }
.instruction-card--text span { font-size: .75rem; font-weight: 800; text-transform: uppercase; }
.instruction-card--text strong { position: relative; z-index: 2; padding: 5px 10px; background: var(--white); font-size: 1.4rem; }
.instruction-card--text i { position: absolute; top: 50%; left: 50%; width: 38px; height: 38px; transform: translate(-50%,-50%); border: 5px solid var(--red); border-radius: 50%; }
.route-demo { position: relative; display: grid; min-height: 300px; grid-template-columns: repeat(2,1fr); border: 2px solid var(--ink); border-radius: 10px; background-image: linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 50% 50%; }
.route-demo span { padding: 8px; color: var(--muted); font-size: .7rem; }
.route-demo svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.route-demo path { fill: none; stroke: var(--green); stroke-dasharray: 180; stroke-dashoffset: 180; stroke-linecap: round; stroke-linejoin: round; stroke-width: 5; animation: draw-route 2.5s infinite alternate ease-in-out; }
.instruction-step--final { border-bottom: 0; }
.solved-demo { display: grid; min-height: 230px; place-content: center; border-radius: 10px; background: var(--green); color: var(--white); text-align: center; box-shadow: var(--shadow); }
.solved-demo span { width: 70px; height: 70px; margin: 0 auto 15px; border: 4px solid var(--white); border-radius: 50%; font-size: 2rem; line-height: 62px; }
.solved-demo strong { font-size: 1.4rem; text-transform: uppercase; }

/* Book */
.book-hero { overflow: hidden; padding: 95px 0 115px; background: var(--blue); color: var(--white); }
.book-hero .kicker { color: #cfeaff; }
.book-hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 90px; align-items: center; }
.book-hero h1 { text-transform: uppercase; }
.book-hero h1 span { display: block; margin-top: 12px; color: var(--yellow); font-size: .5em; line-height: 1.15; }
.book-hero .lead { color: #e5f1f8; }
.book-hero__visual { position: relative; min-height: 620px; }
.book-hero__visual::before { position: absolute; inset: 9% 0 0 14%; width: 430px; height: 430px; border: 68px solid var(--yellow); border-radius: 50%; content: ""; }
.book-cover { position: absolute; z-index: 2; top: 0; left: 50%; width: min(390px,70%); transform: translateX(-50%) rotate(3deg); perspective: 800px; }
.book-cover img { border: 6px solid var(--white); border-radius: 4px; box-shadow: 18px 22px 0 rgba(17,64,98,.55); }
.book-facts { position: relative; z-index: 4; margin-top: -39px; }
.book-facts .shell { display: grid; grid-template-columns: repeat(4,1fr); overflow: hidden; border: 2px solid var(--ink); border-radius: 10px; background: var(--white); box-shadow: 6px 7px 0 rgba(32,37,34,.15); }
.book-facts div { display: grid; padding: 21px 25px; border-right: 1px solid var(--border); }
.book-facts div:last-child { border-right: 0; }
.book-facts strong { font-size: 1.7rem; }
.book-facts span { color: var(--muted); font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.book-inside__grid { display: grid; grid-template-columns: 1fr .85fr; gap: 100px; align-items: center; }
.check-list { display: grid; gap: 9px; margin: 30px 0 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 24px 1fr; gap: 9px; }
.check-list li::before { width: 20px; height: 20px; border-radius: 50%; background: var(--green); color: white; content: "✓"; font-size: .7rem; font-weight: 900; line-height: 20px; text-align: center; }
.book-map-stack { position: relative; min-height: 500px; }
.book-map-stack img { position: relative; z-index: 3; width: 80%; border: 7px solid white; border-radius: 10px; box-shadow: var(--shadow); }
.book-map-stack span { position: absolute; top: 35px; left: 7%; width: 80%; aspect-ratio: 1; transform: rotate(6deg); border: 4px solid var(--ink); border-radius: 10px; background: var(--yellow); }
.book-map-stack span:last-child { top: 66px; left: 13%; transform: rotate(10deg); background: var(--green); }
.level-section { border-block: 1px solid var(--border); background: #eeeadf; }
.level-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.level-grid article { padding: 25px; border: 1px solid var(--border); border-radius: 10px; background: var(--white); }
.level-grid h3 { margin: 18px 0 8px; }
.level-grid p { margin: 0; color: var(--muted); font-size: .9rem; }
.level-dot { display: block; width: 16px; height: 16px; border-radius: 50%; background: var(--green); }
.level-dot--intermediate { background: var(--yellow); }.level-dot--hard { background: var(--accent-red); }.level-dot--expert { background: var(--purple); }
.different-section__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: center; }
.different-section__visual { display: grid; min-height: 430px; place-items: center; background: var(--green); border-radius: 12px; box-shadow: var(--shadow); }
.big-grid { position: relative; width: 280px; height: 280px; transform: rotate(-3deg); border: 7px solid white; background-image: linear-gradient(rgba(255,255,255,.75) 2px,transparent 2px),linear-gradient(90deg,rgba(255,255,255,.75) 2px,transparent 2px); background-size: 25% 25%; }
.big-grid span { position: absolute; width: 25px; height: 25px; border-radius: 50%; background: var(--blue); }
.big-grid span:nth-child(1) { top: 12px; left: 12px; }.big-grid span:nth-child(2) { top: 82px; left: 153px; background: var(--yellow); }.big-grid span:nth-child(3) { right: 12px; bottom: 12px; border: 5px solid white; background: var(--red); }
.book-final { padding: 100px 0; background: var(--ink); color: var(--white); text-align: center; }
.book-final .kicker { color: #72dcb0; }

/* About / 404 */
.about-intro__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; }
.about-rule { display: grid; padding: 50px 30px; border: 2px solid var(--ink); border-radius: 10px; background: var(--yellow); box-shadow: var(--shadow); text-align: center; text-transform: uppercase; }
.about-rule span { font-size: 1.3rem; font-weight: 850; }.about-rule strong { font-size: 3rem; line-height: 1; }
.about-method { background: var(--green); color: var(--white); }.about-method .kicker { color: #d5f5e6; }
.method-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 45px; }
.method-grid article { padding: 28px; border: 1px solid rgba(255,255,255,.45); border-radius: 10px; background: rgba(255,255,255,.08); }
.method-grid article > span { font-size: .7rem; font-weight: 850; }.method-grid h3 { margin: 45px 0 8px; text-transform: uppercase; }.method-grid p { margin: 0; color: #d8f3e7; }
.author-section__inner { display: flex; max-width: 850px; gap: 45px; align-items: center; }
.author-mark { display: grid; width: 150px; height: 150px; flex: 0 0 auto; place-items: center; border: 3px solid var(--ink); border-radius: 50%; background: var(--blue); box-shadow: var(--shadow); color: white; font-size: 2.5rem; font-weight: 900; }
.not-found { display: grid; min-height: calc(100vh - 78px); align-items: center; padding: 70px 0; }
.not-found__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.wrong-turn { position: relative; aspect-ratio: 1; overflow: hidden; border: 7px solid var(--white); border-radius: 14px; background: var(--yellow); box-shadow: var(--shadow); }
.wrong-turn__grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(32,37,34,.24) 2px,transparent 2px),linear-gradient(90deg,rgba(32,37,34,.24) 2px,transparent 2px); background-size: 25% 25%; }
.wrong-turn svg { position: absolute; inset: 0; width: 100%; height: 100%; }.wrong-turn path { fill: none; stroke: var(--ink); stroke-linecap: round; stroke-linejoin: round; stroke-width: 6; }

/* Basic prose fallback */
.prose-page { max-width: 900px; }.prose-page h1 { text-transform: uppercase; }.prose-page p { max-width: 760px; }

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

@media (max-width: 1100px) {
  :root { --shell: min(100% - 42px, 980px); }
  .site-header__inner { grid-template-columns: 165px 1fr auto; }
  .site-nav__list { gap: 14px; }.site-nav a { font-size: .66rem; }.header-cta { display: none; }
  .hero__grid { grid-template-columns: 1fr 1fr; gap: 50px; }.hero h1 { font-size: clamp(2.7rem,5vw,3.7rem); }
  .investigation__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .cards-grid--archive { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .route-tester__layout { grid-template-columns: minmax(280px,1fr) 260px; }
  .page-hero--archive::after { opacity: .1; }
}

@media (max-width: 820px) {
  :root { --shell: calc(100vw - 36px); }
  body { font-size: 16px; }
  .section { padding: 78px 0; }
  .site-header__inner { display: flex; min-height: 70px; justify-content: space-between; }
  .site-logo img { width: 155px; }
  .nav-toggle { display: block; order: 3; cursor: pointer; }
  .nav-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(7px) rotate(45deg); }.nav-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }.nav-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { position: fixed; z-index: 90; inset: 70px 0 0; display: none; padding: 35px 24px; background: var(--ivory); }
  .site-nav.is-open { display: block; }
  .site-nav__list { display: grid; gap: 0; }.site-nav__list li { border-bottom: 1px solid var(--border); }.site-nav a { display: block; padding: 18px 3px; font-size: 1rem; }.site-nav a::after { display: none; }
  .hero { padding: 62px 0 75px; }.hero__grid { grid-template-columns: 1fr; }.hero-map { width: 90%; margin: 0 auto; }.hero-map__empty { min-height: 420px; }
  .steps-grid, .cards-grid { grid-template-columns: 1fr; }.step-card { min-height: 310px; }
  .featured-case__card { grid-template-columns: 1fr; }.featured-case__map { min-height: 340px; }.featured-case__copy { padding: 35px; }
  .book-band__grid { grid-template-columns: 1fr; gap: 30px; }.book-band__visual { min-height: 400px; order: 2; }.book-band__visual img { bottom: -160px; left: 30%; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }.site-footer__legal { grid-column: 1/-1; }
  .page-hero { padding: 75px 0 55px; }.page-hero__narrow { width: var(--shell); margin-inline: auto; }
  .investigation__grid { grid-template-columns: 1fr; }.map-sticky { position: static; }.map-column { max-width: 680px; }
  .route-tester__layout { grid-template-columns: 1fr; }.route-summary { order: -1; }.route-actions { margin-left: 0; }
  .solved-state { grid-template-columns: 52px 1fr; }.solved-state .button { grid-column: 1/-1; }
  .instruction-step, .instruction-step--reverse { grid-template-columns: 50px 1fr; gap: 25px; }.instruction-step > :last-child, .instruction-step--reverse > :last-child { grid-row: auto; grid-column: 2; }.instruction-step--reverse .instruction-step__copy { grid-column: 2; }.instruction-step__number { grid-row: 1 / span 2; }.instruction-image, .instruction-card, .route-demo, .solved-demo { max-width: 550px; }
  .book-hero__grid, .book-inside__grid, .different-section__grid, .about-intro__grid, .not-found__inner { grid-template-columns: 1fr; }.book-hero__visual { min-height: 570px; }.book-inside__grid, .different-section__grid { gap: 60px; }.book-map-stack { min-height: 430px; }
  .book-facts .shell { grid-template-columns: repeat(2,1fr); }.book-facts div:nth-child(2) { border-right: 0; }.book-facts div:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .level-grid { grid-template-columns: repeat(2,1fr); }.method-grid { grid-template-columns: 1fr; }.wrong-turn { max-width: 520px; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100vw - 28px); }
  h1 { font-size: clamp(2.35rem,12vw,3.25rem); } h2 { font-size: clamp(1.75rem,8vw,2.35rem); }
  .hero { padding-top: 45px; }.hero-map { width: 100%; border-width: 5px; box-shadow: 7px 8px 0 rgba(32,37,34,.16); }
  .section-heading--split { display: grid; align-items: start; }.section-heading--split .text-link { justify-self: start; }
  .featured-case__map { min-height: 260px; }.featured-case__copy { padding: 28px 22px; }.fact-row { gap: 6px; }
  .cards-grid--archive { grid-template-columns: 1fr; }
  .site-footer { padding-block: 48px; }.site-footer__grid { grid-template-columns: 1fr; gap: 35px; }.site-footer__legal { grid-column: auto; }
  .puzzle-heading { padding-top: 45px; }.puzzle-facts { display: grid; width: 100%; grid-template-columns: 1fr 1fr; }.puzzle-facts span { min-width: 0; border-bottom: 1px solid var(--border); }.puzzle-facts span:nth-child(2) { border-right: 0; }.puzzle-facts span:nth-child(n+3) { border-bottom: 0; }
  .case-section--crime { grid-template-columns: 1fr; }.case-section__icon { width: 42px; height: 42px; font-size: 1.2rem; line-height: 34px; }
  .route-tester, .answer-panel { padding: 26px 18px; }.route-tester__intro { display: grid; gap: 16px; }.route-tester__rule { justify-self: start; }.route-controls { align-items: stretch; }.route-controls label { flex: 1 1 100%; }.route-actions { width: 100%; }.route-actions .button { flex: 1; }
  .route-grid { width: 560px; }.route-grid-wrap { max-width: calc(100vw - 66px); }
  .answer-panel form { align-items: stretch; }.suspect-choices { display: grid; flex-basis: 100%; }.location-field { width: 100%; }.answer-panel form > .button { width: 100%; }
  .case-navigation { grid-template-columns: 1fr; }.case-navigation__random, .case-navigation__next { text-align: left; }.puzzle-book-cta__inner { display: grid; }
  .instruction-flow { padding-bottom: 80px; }.instruction-step, .instruction-step--reverse { grid-template-columns: 35px 1fr; gap: 16px; padding: 45px 0; }
  .book-hero { padding-top: 65px; }.book-hero__grid { gap: 45px; }.book-hero__visual { min-height: 470px; }.book-hero__visual::before { width: 310px; height: 310px; border-width: 48px; }.book-cover { width: 70%; }
  .book-facts { margin-top: -25px; }.book-facts .shell { grid-template-columns: 1fr 1fr; }.book-facts div { padding: 16px; }.book-facts strong { font-size: 1.35rem; }
  .level-grid { grid-template-columns: 1fr; }.different-section__visual { min-height: 350px; }.big-grid { width: 230px; height: 230px; }
  .author-section__inner { display: grid; }.author-mark { width: 110px; height: 110px; }.not-found { min-height: auto; }
}