@import url("../system/nav.css");

@font-face{font-family:"Kilon";src:url("../system/fonts/kilon.woff2") format("woff2");font-display:swap}
@font-face{font-family:"Hanken Grotesk";src:url("../system/fonts/hanken-grotesk.woff2") format("woff2");font-display:swap}

:root{
  --void:#070406;
  --instrument:#0d1113;
  --ink:#eaf5f6;
  --ink-soft:#bfd0d3;
  --muted:#82999e;
  --signal:#8ee3f2;
  --containment:#d89a58;
  --boundary:#9480c9;
  --line:rgba(142,227,242,.17);
  --line-strong:rgba(142,227,242,.34);
  --display:"Kilon","Hanken Grotesk",sans-serif;
  --body:"Hanken Grotesk",system-ui,sans-serif;
  --mono:"JetBrains Mono","Cascadia Code",Consolas,monospace;
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--void)}
body{
  margin:0;
  min-width:0;
  color:var(--ink);
  background:
    radial-gradient(60rem 32rem at 70% -8%,rgba(142,227,242,.12),transparent 64%),
    linear-gradient(180deg,#070406 0%,#091013 42%,#070406 100%);
  font-family:var(--body);
  line-height:1.58;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:20;
  pointer-events:none;
  background:linear-gradient(180deg,transparent 0 46%,rgba(142,227,242,.14) 49%,transparent 52%);
  transform:translateY(-110%);
  animation:initial-scan 1.1s cubic-bezier(.2,.7,.2,1) .15s 1 both;
  mix-blend-mode:screen;
}
a{color:var(--signal);text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:2px solid var(--containment);outline-offset:4px}
.skip-link{position:fixed;z-index:100;left:1rem;top:-5rem;padding:.75rem 1rem;background:var(--ink);color:var(--void)}
.skip-link:focus{top:1rem}
.route-art{display:none!important}

main{width:min(100% - 2rem,80rem);margin:0 auto;padding:clamp(3rem,8vw,7rem) 0 4rem}
.briefing-hero{border-top:1px solid var(--line-strong);padding-top:1rem}
.hero-kicker{display:flex;justify-content:space-between;gap:1rem;color:var(--signal);font:600 .72rem/1.2 var(--mono);letter-spacing:.12em;text-transform:uppercase}
.briefing-hero h1{max-width:18ch;margin:clamp(2rem,6vw,5rem) 0 1.5rem;font:400 clamp(3rem,8vw,7.5rem)/.88 var(--display);letter-spacing:-.045em}
.briefing-hero h1 em{color:var(--boundary);font-style:normal}
.hero-summary{max-width:58rem;margin:0 0 2.2rem;color:var(--ink-soft);font-size:clamp(1.05rem,2vw,1.34rem)}
.edition-readout{display:grid;grid-template-columns:repeat(4,1fr);margin:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.edition-readout div{padding:.9rem 1rem;border-left:1px solid var(--line)}
.edition-readout div:first-child{border-left:0}
.edition-readout dt{color:var(--muted);font:600 .65rem/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase}
.edition-readout dd{margin:.35rem 0 0;color:var(--ink);font:500 .76rem/1.3 var(--mono);overflow-wrap:anywhere}

.briefing-grid{display:grid;grid-template-columns:minmax(12rem,18rem) minmax(0,1fr);gap:clamp(2rem,5vw,5rem);margin-top:clamp(4rem,8vw,7rem)}
.delta-rail{align-self:start;position:sticky;top:5.5rem;padding-left:1.2rem;border-left:1px solid var(--line-strong)}
.delta-rail::before{content:"";position:absolute;left:-2px;top:0;width:3px;height:4.3rem;background:linear-gradient(var(--signal),transparent)}
.delta-rail h2{margin:0;font:400 1.35rem/1.1 var(--display)}
.delta-rail>p{margin:.55rem 0 1.6rem;color:var(--muted);font-size:.86rem}
.delta-rail nav{display:grid}
.rail-mark{display:grid;grid-template-columns:.65rem 1fr;gap:.65rem .7rem;padding:.9rem 0;border-top:1px solid var(--line);color:var(--ink);text-decoration:none}
.rail-mark strong{grid-column:2;color:var(--muted);font:600 .62rem/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase}
.rail-symbol{width:.6rem;height:.6rem;margin-top:.22rem;border:1px solid currentColor;transform:rotate(45deg)}
.rail-changed .rail-symbol{background:var(--containment);border-color:var(--containment)}
.rail-correction .rail-symbol{border-radius:50%;background:var(--boundary);border-color:var(--boundary)}
.rail-unchanged .rail-symbol{transform:none;border-color:var(--muted)}
.machine-link{display:inline-block;margin-top:1.3rem;font:600 .7rem/1.3 var(--mono)}

.record-stack{min-width:0}
.lane{scroll-margin-top:6rem;margin-bottom:clamp(4rem,8vw,7rem)}
.lane-head{display:grid;grid-template-columns:1fr auto;align-items:end;gap:1rem;padding-bottom:.9rem;border-bottom:1px solid var(--line-strong)}
.lane-head p{margin:0;color:var(--muted);font:600 .68rem/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.lane-head h2{margin:0;font:400 clamp(1.8rem,4vw,3.4rem)/.95 var(--display)}
.record{display:grid;grid-template-columns:3rem minmax(0,1fr);gap:1.2rem;padding:2rem 0;border-bottom:1px solid var(--line)}
.record-index{color:var(--containment);font:500 .72rem/1 var(--mono);padding-top:.32rem}
.record-meta{display:flex;flex-wrap:wrap;gap:.45rem 1rem;color:var(--muted);font:500 .63rem/1.4 var(--mono);letter-spacing:.04em;text-transform:uppercase}
.record-body h3{max-width:28ch;margin:.7rem 0 .9rem;font:400 clamp(1.45rem,3vw,2.25rem)/1.05 var(--display)}
.record-body>p{max-width:66ch;color:var(--ink-soft)}
.boundary{display:grid;grid-template-columns:8rem 1fr;gap:1rem;margin:1.25rem 0;padding:1rem 0;border-top:1px solid rgba(148,128,201,.4);border-bottom:1px solid rgba(148,128,201,.4)}
.boundary strong{color:var(--boundary);font:600 .68rem/1.4 var(--mono);letter-spacing:.07em;text-transform:uppercase}
.boundary p{margin:0;color:var(--ink-soft);font-size:.92rem}
.source-line{font-size:.86rem}.source-line strong{margin-right:.65rem;color:var(--muted);font:600 .65rem/1.2 var(--mono);text-transform:uppercase}.source-line a{margin-right:.75rem}

.wide-section{margin:clamp(5rem,10vw,9rem) 0;border-top:1px solid var(--line-strong);padding-top:1rem}
.wide-section>header{display:grid;grid-template-columns:1fr 2fr;gap:2rem;margin-bottom:2rem}
.wide-section>header p{margin:0;color:var(--muted);font:600 .68rem/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.wide-section>header h2{margin:0;font:400 clamp(2rem,4vw,4rem)/.95 var(--display)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;text-align:left}
th,td{padding:1rem;vertical-align:top;border-bottom:1px solid var(--line)}
thead th{color:var(--muted);font:600 .67rem/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase}
tbody th{width:10rem;color:var(--signal);font-weight:600}
tbody td{color:var(--ink-soft)}
.status-word{color:var(--containment);font:600 .65rem/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.questions ol{counter-reset:question;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}
.questions li{counter-increment:question;min-height:9rem;padding:1.3rem 1.3rem 1.3rem 3.6rem;border-right:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;color:var(--ink-soft)}
.questions li::before{content:counter(question,decimal-leading-zero);position:absolute;left:1rem;top:1.55rem;color:var(--containment);font:.68rem var(--mono)}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.method-grid>div{padding:1.3rem;border-right:1px solid var(--line)}
.method-grid h3{margin:0 0 .7rem;font:400 1.35rem var(--display)}
.method-grid p,.method-grid ul{margin:0;color:var(--ink-soft)}
.briefing-footer{display:flex;justify-content:space-between;gap:1rem;padding-top:1rem;border-top:1px solid var(--line-strong);color:var(--muted);font-size:.82rem}
.briefing-footer p{margin:0}

@keyframes initial-scan{from{transform:translateY(-110%)}to{transform:translateY(110%)}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}body::after{display:none}}
@media (max-width:820px){
  main{width:min(100% - 1.25rem,80rem);padding-top:3rem}
  .hero-kicker{align-items:flex-start;flex-direction:column}
  .edition-readout{grid-template-columns:repeat(2,1fr)}
  .edition-readout div:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .edition-readout div:nth-child(4){border-top:1px solid var(--line)}
  .briefing-grid{grid-template-columns:1fr}
  .delta-rail{position:relative;top:auto;padding-left:1rem}
  .delta-rail nav{grid-template-columns:repeat(3,1fr)}
  .rail-mark{padding-right:.7rem}
  .wide-section>header{grid-template-columns:1fr}
  .method-grid{grid-template-columns:1fr}
  .method-grid>div{border-right:0;border-bottom:1px solid var(--line)}
}
@media (max-width:560px){
  .briefing-hero h1{font-size:clamp(2.65rem,16vw,4.2rem)}
  .delta-rail nav{grid-template-columns:1fr}
  .record{grid-template-columns:2rem minmax(0,1fr);gap:.65rem}
  .lane-head{grid-template-columns:1fr}.lane-head h2{grid-row:1}
  .boundary{grid-template-columns:1fr}
  .questions ol{grid-template-columns:1fr}
  .questions li{border-right:0}
  .briefing-footer{flex-direction:column}
}
@media print{
  :root{color-scheme:light;--void:#fff;--instrument:#fff;--ink:#111;--ink-soft:#2d3436;--muted:#4d5659;--line:#bbb;--line-strong:#777;--signal:#005c69;--containment:#8a4d00;--boundary:#57428b}
  body{background:#fff}body::after,.site-nav{display:none!important}main{width:100%;padding:0}.delta-rail{position:static}.briefing-grid{grid-template-columns:14rem 1fr}
  a{color:#005c69}.wide-section{break-inside:avoid}.record{break-inside:avoid}
}