:root {
  --hue: 205;
  --accent: hsl(var(--hue) 92% 62%);
  --accent-hi: hsl(calc(var(--hue) + 15) 92% 72%);
  --accent-soft: hsl(var(--hue) 88% 60% / .15);
  --accent-faint: hsl(var(--hue) 86% 60% / .065);
  --accent-2: hsl(calc(var(--hue) + 8) 82% 80%);
  --bg: #030912;
  --bg-2: #06111d;
  --bg-3: #091827;
  --panel: rgb(8 23 36 / .80);
  --panel-strong: #0a1b2b;
  --text: #f5f9ff;
  --muted: #9eb2c7;
  --muted-2: #71889f;
  --line: hsl(var(--hue) 70% 82% / .16);
  --line-strong: hsl(var(--hue) 74% 84% / .28);
  --danger: #f49a9a;
  --header-h: 76px;
  --max: 1240px;
  --radius: 20px;
  --radius-sm: 13px;
  --shadow: 0 28px 90px rgb(0 0 0 / .33);
  --mx: 65%;
  --my: 20%;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 18% -10%, var(--accent-soft), transparent 35rem),
    radial-gradient(circle at 94% 8%, hsl(calc(var(--hue) + 28) 88% 60% / .075), transparent 30rem),
    linear-gradient(180deg, #030912 0%, #06111b 48%, #030912 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgb(255 255 255 / .018) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .018) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, #000 0%, #000 58%, transparent 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at var(--mx) var(--my), var(--accent-faint), transparent 24rem);
}
a { color: inherit; }
button, input { font: inherit; }
img, svg, canvas { max-width: 100%; }
[hidden] { display: none !important; }

.skip-link {
  position: fixed;
  top: -80px;
  left: 18px;
  z-index: 9999;
  padding: .74rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #001517;
  text-decoration: none;
  font-weight: 900;
}
.skip-link:focus { top: 16px; }

.shell { width: min(calc(100% - 34px), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-h);
  border-bottom: 1px solid rgb(255 255 255 / .055);
  background: rgb(5 11 16 / .82);
  backdrop-filter: blur(18px) saturate(135%);
}
.nav-row {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  text-decoration: none;
  font-size: .83rem;
  font-weight: 950;
  letter-spacing: .18em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid hsl(var(--hue) 78% 61% / .5);
  display: grid;
  place-items: center;
  color: var(--accent);
  background: linear-gradient(145deg, hsl(var(--hue) 80% 60% / .12), rgb(255 255 255 / .02));
  box-shadow: inset 0 0 22px hsl(var(--hue) 80% 60% / .05);
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-sub { color: var(--muted-2); font-weight: 700; letter-spacing: .08em; }

.nav-cluster { display: flex; align-items: center; gap: 10px; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a,
.utility-button,
.menu-toggle {
  border: 0;
  color: var(--muted);
  background: transparent;
  text-decoration: none;
  padding: .66rem .82rem;
  border-radius: 999px;
  font-size: .91rem;
  font-weight: 800;
  cursor: pointer;
}
.site-nav a:hover,
.site-nav a[aria-current="page"],
.utility-button:hover,
.menu-toggle:hover { color: var(--text); background: rgb(255 255 255 / .055); }
.nav-substack { border: 1px solid hsl(var(--hue) 70% 58% / .35) !important; color: var(--accent) !important; }
.utility-button { display: inline-grid; place-items: center; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); }
.utility-button svg { width: 18px; height: 18px; }
.menu-toggle { display: none; border: 1px solid var(--line); }

.hero {
  position: relative;
  padding: clamp(70px, 8.5vw, 128px) 0 54px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(420px, .94fr);
  align-items: center;
  gap: clamp(42px, 7vw, 92px);
}
.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .21em;
  font-weight: 950;
  font-size: .75rem;
}
.hero-title,
.page-title {
  margin: 0;
  max-width: 900px;
  font-size: clamp(3.55rem, 7.5vw, 7.45rem);
  line-height: .9;
  letter-spacing: -.067em;
  text-wrap: balance;
}
.hero-title .accent,
.hero-title-reflection .accent {
  display: block;
  color: var(--accent);
  background: linear-gradient(105deg, var(--accent), var(--accent-hi));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title-wrap {
  position: relative;
  display: inline-block;
  max-width: 100%;
  padding-bottom: clamp(38px, 4.3vw, 58px);
}
.hero-title-reflection {
  position: absolute;
  z-index: 0;
  top: calc(100% - clamp(32px, 3.5vw, 48px));
  left: 0;
  width: 100%;
  height: clamp(34px, 4vw, 54px);
  overflow: hidden;
  pointer-events: none;
  user-select: none;
  opacity: .15;
  transform: scaleY(-1) skewX(-3deg);
  transform-origin: top;
  filter: blur(.65px);
  -webkit-mask-image: linear-gradient(to bottom, rgb(0 0 0 / .86) 0%, rgb(0 0 0 / .25) 42%, transparent 88%);
  mask-image: linear-gradient(to bottom, rgb(0 0 0 / .86) 0%, rgb(0 0 0 / .25) 42%, transparent 88%);
}
.hero-title-reflection .hero-title {
  margin: 0;
  opacity: .95;
}
.hero-title-wrap::after {
  content: "";
  position: absolute;
  left: 2%;
  right: 12%;
  bottom: 18px;
  height: 1px;
  background: linear-gradient(90deg, hsl(var(--hue) 95% 72% / .32), transparent 82%);
  box-shadow: 0 0 20px hsl(var(--hue) 95% 62% / .13);
  pointer-events: none;
}

.hero-copy {
  max-width: 760px;
  margin: 0;
  color: #c9d8db;
  font-size: clamp(1.08rem, 1.7vw, 1.34rem);
}
.hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  gap: .55rem;
  padding: .78rem 1.08rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 900;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-hi));
  color: #01101c;
  border-color: transparent;
  box-shadow: 0 10px 30px hsl(var(--hue) 90% 58% / .14);
}
.button-secondary { background: rgb(255 255 255 / .025); }
.button-ghost { color: var(--muted); }

.hero-visual {
  position: relative;
  min-height: 500px;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, hsl(var(--hue) 90% 62% / .13), transparent 40%),
    radial-gradient(circle at 80% 18%, hsl(calc(var(--hue) + 22) 92% 64% / .07), transparent 30%),
    linear-gradient(145deg, rgb(255 255 255 / .024), transparent 58%),
    #06111d;
  box-shadow: var(--shadow);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(hsl(var(--hue) 80% 65% / .05) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--hue) 80% 65% / .05) 1px, transparent 1px);
  background-size: 30px 30px;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: -30%;
  height: 32%;
  background: linear-gradient(to bottom, transparent, hsl(var(--hue) 84% 64% / .08), hsl(var(--hue) 84% 64% / .22), transparent);
  border-bottom: 1px solid hsl(var(--hue) 84% 64% / .38);
  animation: scan 7s linear infinite;
  pointer-events: none;
}
@keyframes scan { to { transform: translateY(650px); } }
#evidence-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.visual-hud {
  position: absolute;
  inset: 18px 18px auto;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  pointer-events: none;
}
.hud-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .42rem .7rem;
  background: rgb(4 12 16 / .72);
  color: var(--muted);
  font-size: .69rem;
  letter-spacing: .11em;
  text-transform: uppercase;
  font-weight: 900;
}
.hud-chip.live { color: var(--accent); }
.visual-caption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgb(5 13 18 / .78);
  backdrop-filter: blur(8px);
}
.visual-caption strong { display: block; font-size: .78rem; color: var(--accent-2); letter-spacing: .11em; text-transform: uppercase; }
.visual-caption span { display: block; margin-top: 5px; color: var(--muted); font-size: .91rem; }

.trace-rail { margin-top: 46px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgb(5 14 19 / .72); }
.trace-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.trace-step { position: relative; padding: 22px 24px; }
.trace-step + .trace-step { border-left: 1px solid var(--line); }
.trace-step::before { content: ""; position: absolute; top: 0; left: 0; width: 0; height: 2px; background: var(--accent); transition: width .5s ease; }
.trace-step:hover::before { width: 100%; }
.trace-step b { display: block; color: var(--accent-2); font-size: .71rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 7px; }
.trace-step span { color: var(--muted); }

.section { padding: 76px 0; }
.section.alt { position: relative; background: linear-gradient(180deg, rgb(255 255 255 / .012), rgb(255 255 255 / .004)); border-block: 1px solid rgb(255 255 255 / .045); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 34px; margin-bottom: 28px; }
.section-heading h2 { margin: 0; font-size: clamp(2.15rem, 4vw, 4rem); line-height: 1; letter-spacing: -.045em; }
.section-heading p { max-width: 590px; margin: 0; color: var(--muted); }

.featured {
  position: relative;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  min-height: 460px;
  border: 1px solid var(--line);
  border-radius: 26px;
  overflow: hidden;
  background: linear-gradient(145deg, rgb(14 33 42 / .9), rgb(7 18 24 / .82));
  box-shadow: var(--shadow);
}
.featured-art { position: relative; min-height: 410px; overflow: hidden; border-right: 1px solid var(--line); }
.forensic-art { position: absolute; inset: 0; background: radial-gradient(circle at 52% 52%, hsl(var(--hue) 80% 62% / .18), transparent 26%), #061117; }
.forensic-art::before,
.forensic-art::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid hsl(var(--hue) 75% 62% / .26); }
.forensic-art::before { width: 330px; height: 330px; left: 50%; top: 50%; transform: translate(-50%, -50%); box-shadow: 0 0 0 48px hsl(var(--hue) 75% 62% / .035), 0 0 0 96px hsl(var(--hue) 75% 62% / .025); }
.forensic-art::after { width: 120px; height: 120px; left: 50%; top: 50%; transform: translate(-50%, -50%); border-style: dashed; animation: orbit 14s linear infinite; }
@keyframes orbit { to { transform: translate(-50%, -50%) rotate(360deg); } }
.art-node { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 20px var(--accent); }
.art-node.n1 { left: 25%; top: 28%; }
.art-node.n2 { right: 22%; top: 32%; }
.art-node.n3 { left: 35%; bottom: 22%; }
.art-node.n4 { right: 30%; bottom: 24%; }
.art-line { position: absolute; left: 20%; right: 20%; top: 50%; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); transform: rotate(-18deg); transform-origin: center; opacity: .5; }
.art-label { position: absolute; color: var(--muted); font-size: .68rem; letter-spacing: .13em; text-transform: uppercase; }
.art-label.l1 { left: 18px; top: 18px; }
.art-label.l2 { right: 18px; bottom: 18px; }
.featured-copy { padding: clamp(30px, 4vw, 52px); display: flex; flex-direction: column; justify-content: center; }
.article-meta { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; color: var(--accent); font-size: .71rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 900; }
.featured h3 { margin: 20px 0 18px; font-size: clamp(2rem, 3.8vw, 3.6rem); line-height: .98; letter-spacing: -.045em; }
.featured p { margin: 0 0 28px; color: var(--muted); font-size: 1.05rem; }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-top: 18px; }
.article-card {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: linear-gradient(180deg, rgb(13 31 40 / .78), rgb(7 20 26 / .74));
  transition: transform .23s ease, border-color .23s ease, box-shadow .23s ease;
}
.article-card:hover { transform: translateY(-5px); border-color: hsl(var(--hue) 70% 60% / .37); box-shadow: 0 18px 52px rgb(0 0 0 / .2); }
.article-card::before {
  content: "";
  position: absolute;
  inset: -30% 0 auto;
  height: 28%;
  background: linear-gradient(to bottom, transparent, hsl(var(--hue) 82% 62% / .1), transparent);
  transition: transform .6s ease;
}
.article-card:hover::before { transform: translateY(400px); }
.article-card h3 { margin: 17px 0 12px; font-size: 1.42rem; line-height: 1.12; letter-spacing: -.028em; }
.article-card p { color: var(--muted); margin: 0 0 50px; }
.card-link { position: absolute; left: 24px; bottom: 22px; text-decoration: none; font-weight: 900; }
.card-link:hover { color: var(--accent); }

.signal-board { display: grid; grid-template-columns: .7fr 1.3fr; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgb(6 17 22 / .72); }
.signal-label { padding: 28px; border-right: 1px solid var(--line); background: linear-gradient(145deg, hsl(var(--hue) 78% 60% / .1), transparent); }
.signal-label b { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .15em; color: var(--accent); }
.signal-label strong { display: block; margin-top: 10px; font-size: 1.6rem; line-height: 1.05; }
.signal-stream { padding: 12px 28px; }
.signal-item { display: grid; grid-template-columns: 84px 1fr auto; gap: 18px; align-items: center; padding: 17px 0; border-bottom: 1px solid var(--line); }
.signal-item:last-child { border-bottom: 0; }
.signal-item time { color: var(--muted-2); font-variant-numeric: tabular-nums; font-size: .82rem; }
.signal-item span { color: #c7d5d8; }
.signal-item b { color: var(--accent-2); font-size: .68rem; letter-spacing: .09em; text-transform: uppercase; }

.method-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
.panel { border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(26px, 4vw, 42px); background: rgb(9 24 31 / .72); }
.method-list { list-style: none; padding: 0; margin: 24px 0 0; }
.method-list li { display: grid; grid-template-columns: 52px 1fr; gap: 15px; padding: 18px 0; border-top: 1px solid var(--line); }
.method-list b { color: var(--accent-2); font-variant-numeric: tabular-nums; }
.method-list strong { display: block; margin-bottom: 3px; }
.method-list span { color: var(--muted); }
.manifest { display: flex; flex-direction: column; justify-content: space-between; min-height: 100%; }
.manifest blockquote { margin: 0; font-size: clamp(1.5rem, 2.8vw, 2.45rem); line-height: 1.16; letter-spacing: -.035em; }
.manifest small { margin-top: 28px; color: var(--muted); }

.page-hero { padding: 92px 0 46px; }
.page-title { font-size: clamp(3rem, 6.7vw, 6.2rem); }
.page-lead { max-width: 780px; margin-top: 24px; color: var(--muted); font-size: 1.13rem; }

.tools-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 28px; }
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-button { border: 1px solid var(--line); background: rgb(255 255 255 / .02); color: var(--muted); padding: .62rem .88rem; border-radius: 999px; cursor: pointer; font-weight: 850; }
.filter-button:hover, .filter-button.is-active { color: #001416; background: var(--accent); border-color: transparent; }
.search-box { position: relative; min-width: min(100%, 300px); }
.search-box input { width: 100%; border: 1px solid var(--line); border-radius: 999px; background: rgb(255 255 255 / .025); color: var(--text); padding: .68rem 1rem .68rem 2.5rem; outline: 0; }
.search-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px hsl(var(--hue) 70% 58% / .12); }
.search-box svg { position: absolute; left: .9rem; top: 50%; transform: translateY(-50%); width: 16px; color: var(--muted); }
.archive-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.archive-card { min-height: 280px; }

.prose { max-width: 850px; }
.prose h2 { margin-top: 2.2em; font-size: clamp(1.7rem, 3vw, 2.5rem); letter-spacing: -.03em; }
.prose p, .prose li { color: #c8d6d8; }
.prose a { color: var(--accent); }
.code-manifest { margin-top: 32px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #061117; }
.code-top { display: flex; justify-content: space-between; gap: 20px; padding: 13px 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; }
.code-lines { padding: 18px; display: grid; gap: 9px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: #c5d6d8; font-size: .9rem; }
.code-lines span::before { content: attr(data-n); display: inline-block; width: 32px; color: var(--muted-2); }
.code-lines em { color: var(--accent); font-style: normal; }

.site-footer { margin-top: 78px; border-top: 1px solid var(--line); padding: 36px 0 52px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: start; }
.footer-title { color: var(--text); font-weight: 950; letter-spacing: .12em; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.micro { margin-top: 10px; color: var(--muted-2); font-size: .82rem; }

.settings-backdrop { position: fixed; inset: 0; z-index: 300; background: rgb(0 0 0 / .48); opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.settings-backdrop.is-open { opacity: 1; pointer-events: auto; }
.settings-panel { position: absolute; top: 0; right: 0; width: min(92vw, 420px); height: 100%; padding: 24px; background: #071421; border-left: 1px solid var(--line); box-shadow: -24px 0 70px rgb(0 0 0 / .35); transform: translateX(100%); transition: transform .25s ease; overflow: auto; }
.settings-backdrop.is-open .settings-panel { transform: translateX(0); }
.settings-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.settings-head h2 { margin: 0; font-size: 1.3rem; }
.close-button { border: 1px solid var(--line); background: transparent; color: var(--text); width: 40px; height: 40px; border-radius: 50%; cursor: pointer; }
.setting-group { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); }
.setting-group label { display: block; font-weight: 850; }
.setting-group p { margin: 6px 0 12px; color: var(--muted); font-size: .9rem; }
.hue-value { color: var(--accent); }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.toggle-row { display: flex; justify-content: space-between; gap: 18px; align-items: center; padding: 10px 0; }
.toggle-row input { width: 20px; height: 20px; accent-color: var(--accent); }
.reset-button { width: 100%; border: 1px solid var(--line-strong); background: transparent; color: var(--text); border-radius: 12px; padding: .75rem; cursor: pointer; font-weight: 850; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 4px; }

body.high-contrast {
  --text: #fff;
  --muted: #d7e0e2;
  --muted-2: #b9cbcf;
  --line: rgb(255 255 255 / .32);
  --line-strong: rgb(255 255 255 / .5);
}
body.reduce-motion *, body.reduce-motion *::before, body.reduce-motion *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
body.reduce-motion .reveal { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 430px; }
  .card-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .featured { grid-template-columns: 1fr; }
  .featured-art { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 820px) {
  .menu-toggle { display: inline-flex; }
  .site-nav { position: absolute; top: calc(var(--header-h) - 2px); left: 17px; right: 17px; display: none; flex-direction: column; align-items: stretch; gap: 4px; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: #071421; box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { border-radius: 10px; }
  .brand-sub { display: none; }
  .trace-grid { grid-template-columns: 1fr; }
  .trace-step + .trace-step { border-left: 0; border-top: 1px solid var(--line); }
  .method-layout, .signal-board { grid-template-columns: 1fr; }
  .signal-label { border-right: 0; border-bottom: 1px solid var(--line); }
  .tools-row { align-items: stretch; flex-direction: column; }
  .search-box { width: 100%; }
  .archive-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  :root { --header-h: 64px; }
  .shell { width: min(calc(100% - 24px), var(--max)); }

  .brand { gap: 10px; font-size: .78rem; letter-spacing: .16em; }
  .brand-mark { width: 34px; height: 34px; border-radius: 11px; }
  .brand-mark svg { width: 20px; height: 20px; }
  .menu-toggle { padding: .56rem .72rem; font-size: .86rem; }
  .nav-cluster { gap: 6px; }
  .utility-button { width: 36px; height: 36px; }

  .hero { padding: 34px 0 30px; }
  .hero-grid { gap: 30px; }
  .eyebrow { margin-bottom: 13px; font-size: .69rem; letter-spacing: .19em; }
  .hero-title { font-size: clamp(3rem, 14.8vw, 4.25rem); line-height: .91; letter-spacing: -.06em; }
  .hero-title-wrap { padding-bottom: 36px; }
  .hero-title-reflection {
    top: calc(100% - 29px);
    height: 31px;
    opacity: .13;
    -webkit-mask-image: linear-gradient(to bottom, rgb(0 0 0 / .72), transparent 76%);
    mask-image: linear-gradient(to bottom, rgb(0 0 0 / .72), transparent 76%);
  }
  .hero-title-wrap::after { bottom: 12px; opacity: .8; }
  .hero-copy { font-size: 1.02rem; line-height: 1.58; }
  .hero-actions {
    display: grid;
    grid-template-columns: .95fr 1.05fr;
    gap: 9px;
    margin-top: 24px;
  }
  .hero-actions .button { width: 100%; min-height: 46px; padding: .7rem .58rem; font-size: .88rem; }

  .hero-visual { min-height: 330px; border-radius: 19px; }
  .visual-hud { inset: 12px 12px auto; gap: 8px; }
  .hud-chip { padding: .38rem .55rem; font-size: .57rem; letter-spacing: .08em; }
  .visual-caption { left: 12px; right: 12px; bottom: 12px; padding: 12px 13px; border-radius: 13px; }
  .visual-caption strong { font-size: .66rem; }
  .visual-caption span { margin-top: 4px; font-size: .82rem; line-height: 1.45; }

  .trace-rail { margin-top: 24px; border-radius: 18px; }
  .trace-step { padding: 17px 18px 17px 42px; min-height: 92px; }
  .trace-step::after {
    content: "";
    position: absolute;
    left: 20px;
    top: 23px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 14px hsl(var(--hue) 92% 62% / .45);
  }
  .trace-step b { margin-bottom: 6px; font-size: .67rem; }
  .trace-step span { font-size: .93rem; line-height: 1.45; }

  .card-grid { grid-template-columns: 1fr; }
  .section { padding: 44px 0; }
  .section-heading { flex-direction: column; align-items: start; gap: 16px; margin-bottom: 22px; }
  .section-heading h2 { font-size: clamp(2rem, 11vw, 3rem); }
  .section-heading p { font-size: .96rem; }
  .featured { border-radius: 20px; }
  .featured-art { min-height: 300px; }
  .featured-copy { padding: 24px; }

  .signal-item { grid-template-columns: 66px 1fr; gap: 12px; }
  .signal-item b { grid-column: 2; }
  .site-footer { margin-top: 48px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}
@media (max-width: 370px) {
  .hero-actions { grid-template-columns: 1fr; }
  .hero-actions .button { font-size: .92rem; }
  .hud-chip:last-child { display: none; }
}