:root {
  --ink: #070a08;
  --panel: #0d120f;
  --panel-2: #141b16;
  --steel: #27312b;
  --line: #354139;
  --paper: #e7eadf;
  --muted: #98a096;
  --toxic: #8cff45;
  --toxic-2: #bcff8e;
  --alarm: #ff3f35;
  --warning: #ffc443;
  --display: "Bahnschrift Condensed", "Arial Narrow", sans-serif;
  --mono: "Cascadia Mono", Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 72% 8%, rgba(140, 255, 69, .08), transparent 24rem),
    radial-gradient(circle at 7% 38%, rgba(255, 63, 53, .07), transparent 18rem),
    var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  line-height: 1.72;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 20;
  opacity: .22;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0, 0, 0, .38) 4px);
  mix-blend-mode: multiply;
}

a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--warning); outline-offset: 4px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 50; padding: .7rem 1rem; background: var(--paper); color: var(--ink); }
.skip-link:focus { top: 1rem; }
.hazard-line { height: 10px; background: repeating-linear-gradient(135deg, var(--warning) 0 16px, #17140b 16px 32px); border-bottom: 1px solid #000; }

.site-header {
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 0 3vw;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 10, 8, .92);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 15;
}

.brand { display: flex; align-items: center; gap: .8rem; text-decoration: none; font-family: var(--display); font-size: 1.12rem; letter-spacing: .12em; line-height: 1; }
.brand small { display: block; margin-top: .35rem; color: var(--toxic); font: 600 .58rem/1 var(--mono); letter-spacing: .18em; }
.brand-logo { width: 58px; height: 48px; object-fit: contain; filter: drop-shadow(0 0 10px rgba(140,255,69,.22)); }
.primary-links { justify-self: center; display: flex; align-items: center; gap: clamp(.7rem, 1.7vw, 1.8rem); }
.primary-links a { position: relative; color: var(--muted); text-decoration: none; text-transform: uppercase; font-size: .69rem; letter-spacing: .11em; padding: 1.95rem 0; }
.primary-links a:hover, .primary-links a[aria-current="page"] { color: var(--paper); }
.primary-links a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--toxic); box-shadow: 0 0 14px var(--toxic); }
.steam-link, .menu-toggle { border: 1px solid var(--toxic); color: var(--toxic); background: transparent; padding: .7rem .9rem; font: 700 .65rem/1 var(--mono); text-decoration: none; letter-spacing: .08em; }
.steam-link:hover, .menu-toggle:hover { background: var(--toxic); color: var(--ink); }
.menu-toggle { display: none; cursor: pointer; }

main { width: min(1420px, 94vw); margin: 0 auto; }
.breadcrumbs { display: flex; align-items: center; gap: .7rem; padding: 1.25rem 0 0; color: var(--muted); text-transform: uppercase; font-size: .65rem; letter-spacing: .1em; }
.breadcrumbs a { color: var(--toxic); }
.page-hero { min-height: 455px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: clamp(2rem, 6vw, 7rem); align-items: center; border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.article .page-hero { grid-template-columns: minmax(0, 850px); min-height: 410px; }
.page-hero::before { content: "MP-4108000"; position: absolute; right: 0; bottom: -3rem; color: rgba(231, 234, 223, .025); font: 900 clamp(6rem, 17vw, 17rem)/1 var(--display); letter-spacing: -.05em; white-space: nowrap; }
.hero-copy { position: relative; z-index: 2; padding: 5rem 0; }
.eyebrow { color: var(--toxic); text-transform: uppercase; letter-spacing: .18em; font-size: .72rem; }
h1, h2 { font-family: var(--display); text-transform: uppercase; font-stretch: condensed; }
h1 { max-width: 950px; margin: .45rem 0 1.4rem; font-size: clamp(3.5rem, 8.4vw, 8.8rem); line-height: .82; letter-spacing: -.035em; text-wrap: balance; }
.article h1 { font-size: clamp(3.3rem, 7vw, 7.2rem); }
.quick-answer { max-width: 810px; margin: 0; padding-left: 1.2rem; border-left: 4px solid var(--alarm); color: #d5dbd2; font-size: clamp(.92rem, 1.4vw, 1.12rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; min-height: 46px; padding: 0 1.2rem; border: 1px solid var(--line); color: var(--paper); text-decoration: none; font-size: .7rem; letter-spacing: .08em; }
.button.primary { border-color: var(--toxic); background: var(--toxic); color: var(--ink); font-weight: 900; box-shadow: 0 0 35px rgba(140, 255, 69, .12); }
.button:hover { border-color: var(--paper); transform: translateY(-2px); }
.evidence-strip { width: fit-content; margin-top: 1.4rem; padding: .55rem .8rem; border: 1px solid #744025; background: #21140e; color: #ffc49d; text-transform: uppercase; font-size: .63rem; letter-spacing: .07em; }
.status-light { display: inline-block; width: 7px; height: 7px; margin-right: .55rem; border-radius: 50%; background: var(--warning); box-shadow: 0 0 10px var(--warning); }

.hero-machine { justify-self: end; position: relative; margin: 2.5rem 0; width: min(440px, 100%); filter: drop-shadow(0 0 38px rgba(255, 63, 53, .15)); }
.hero-machine::before { content: ""; position: absolute; inset: 8% -4% 5%; z-index: -1; border: 1px solid var(--line); transform: rotate(4deg); background: repeating-linear-gradient(135deg, rgba(140,255,69,.04) 0 8px, transparent 8px 18px); }
.hero-machine img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; }
.hero-machine figcaption { position: absolute; right: 0; bottom: 1rem; padding: .45rem .7rem; background: var(--alarm); color: white; font-size: .54rem; letter-spacing: .06em; }

.article-grid { display: grid; grid-template-columns: minmax(0, 850px) minmax(220px, 1fr); justify-content: space-between; gap: clamp(3rem, 8vw, 9rem); padding: 5rem 0 8rem; }
article { counter-reset: sections; }
.article-section { margin-bottom: 5.5rem; scroll-margin-top: 110px; }
.article-section h2 { display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: center; margin: 0 0 1.5rem; font-size: clamp(1.8rem, 3vw, 3.3rem); line-height: .95; letter-spacing: -.02em; }
.article-section h2::before { counter-increment: sections; content: "0" counter(sections); color: var(--toxic); font: 700 .66rem/1 var(--mono); letter-spacing: .08em; }
.article-section p { color: #bdc4bb; font-family: Georgia, "Times New Roman", serif; font-size: 1.05rem; line-height: 1.88; }
.article-section p + p { margin-top: 1.2rem; }
.article-section p::selection { background: var(--toxic); color: var(--ink); }
.sources { padding: 2rem; border: 1px solid var(--line); background: linear-gradient(145deg, var(--panel-2), var(--panel)); }
.sources ul { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.sources li + li { border-top: 1px solid var(--line); }
.sources a { display: flex; justify-content: space-between; gap: 1rem; padding: .9rem 0; color: var(--toxic-2); text-decoration: none; font-size: .78rem; }
.toc { align-self: start; position: sticky; top: 118px; border-left: 1px solid var(--line); padding-left: 1.5rem; }
.toc > p { color: var(--paper); font: 800 .65rem/1 var(--mono); letter-spacing: .14em; }
.toc > a { display: block; color: var(--muted); margin: .85rem 0; text-decoration: none; font-size: .69rem; line-height: 1.35; }
.toc > a:hover { color: var(--toxic); }
.checked { margin-top: 2rem; padding: 1rem; border: 1px solid #30492d; color: var(--muted); font-size: .59rem; letter-spacing: .08em; }
.checked strong { color: var(--toxic); font-size: .75rem; }

footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2rem 3vw; border-top: 1px solid var(--line); color: #697169; background: #050705; font-size: .58rem; letter-spacing: .08em; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: auto auto 1fr; gap: 1rem; min-height: 72px; }
  .menu-toggle { display: inline-block; justify-self: end; grid-column: 3; }
  .steam-link { display: none; }
  .primary-links { display: none; position: absolute; left: 0; right: 0; top: 72px; padding: 1rem 3vw 1.5rem; background: #090d0a; border-bottom: 1px solid var(--line); }
  .primary-links.open { display: grid; grid-template-columns: repeat(2, 1fr); }
  .primary-links a { padding: .8rem; border: 1px solid var(--line); }
  .primary-links a[aria-current="page"]::after { left: .8rem; right: auto; width: 30px; }
  .page-hero { grid-template-columns: 1fr; padding-top: 1rem; }
  .hero-copy { padding: 3.5rem 0 1rem; }
  .hero-machine { justify-self: center; max-width: 360px; margin: 0 0 4rem; }
  .article-grid { grid-template-columns: 1fr; }
  .toc { order: -1; position: static; border: 1px solid var(--line); padding: 1rem; columns: 2; }
  .toc > p, .toc .checked { column-span: all; }
}

@media (max-width: 560px) {
  body { line-height: 1.6; }
  .site-header { padding: 0 4vw; }
  .brand { font-size: .9rem; }
  .brand small { font-size: .5rem; }
  .brand-logo { width: 50px; }
  .menu-toggle { padding: .65rem; }
  main { width: 90vw; }
  .breadcrumbs { overflow: hidden; white-space: nowrap; }
  h1 { font-size: clamp(3.2rem, 18vw, 5.5rem); }
  .article h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .quick-answer { font-size: .88rem; }
  .hero-actions .button { flex: 1; justify-content: center; }
  .article-grid { padding: 3.5rem 0 5rem; }
  .article-section { margin-bottom: 4rem; }
  .article-section p { font-size: 1rem; }
  .toc { columns: 1; }
  footer { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}