:root {
  --bg: #08090d;
  --surface: rgba(255,255,255,.045);
  --surface-strong: rgba(255,255,255,.072);
  --text: #f1f4f3;
  --muted: #9ca7a7;
  --dim: #687174;
  --line: rgba(255,255,255,.13);
  --accent: #9c86f2;
  --accent-rgb: 156,134,242;
  --accent-2: #63c8bc;
  --danger: #e8a372;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(var(--accent-rgb),.13), transparent 34rem),
    radial-gradient(circle at 86% 30%, rgba(var(--accent-rgb),.06), transparent 28rem),
    linear-gradient(180deg, #090b10, var(--bg));
  font-family: var(--sans);
  line-height: 1.55;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
  opacity: .4;
}

a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1240px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(8,9,13,.94), rgba(8,9,13,.74), transparent);
  backdrop-filter: blur(16px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .15em;
  text-decoration: none;
  text-transform: uppercase;
}
.brand-mark {
  width: 12px;
  height: 12px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(var(--accent-rgb),.5);
}
.nav-links { display: flex; gap: 22px; }
.nav-links a { color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.nav-links a:hover { color: var(--text); }

.shell { position: relative; width: min(1160px, calc(100% - 28px)); margin: 0 auto; }
.hero {
  min-height: min(900px, 92vh);
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: clamp(40px, 7vw, 110px);
  padding: 88px 0 96px;
}
.kicker, .eyebrow, .status, .micro, .label, .section-index {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.kicker { display: flex; align-items: center; gap: 12px; margin: 0 0 28px; color: var(--accent); }
.kicker::before { content: ""; width: 32px; height: 1px; background: var(--accent); }
.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(58px, 10vw, 132px);
  font-weight: 480;
  letter-spacing: -.065em;
  line-height: .86;
}
.hero h1 em { display: block; color: var(--accent); font-family: var(--serif); font-weight: 400; }
.hero-lede { max-width: 650px; margin: 34px 0 0; color: var(--muted); font-size: clamp(18px, 2.2vw, 24px); line-height: 1.52; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.button:hover { transform: translateY(-2px); border-color: rgba(var(--accent-rgb),.65); background: rgba(var(--accent-rgb),.11); }
.button--accent { border-color: var(--accent); background: var(--accent); color: #07080a; }
.button--accent:hover { background: color-mix(in srgb, var(--accent) 88%, white); }

.hero-orbit, .instrument {
  position: relative;
  min-height: 440px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(145deg, var(--surface-strong), rgba(0,0,0,.15));
  box-shadow: inset 0 1px rgba(255,255,255,.05), 0 32px 100px rgba(0,0,0,.25);
}
.hero-orbit::before, .hero-orbit::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 62%;
  aspect-ratio: 1;
  border: 1px solid rgba(var(--accent-rgb),.25);
  border-radius: 42% 58% 54% 46%;
  transform: translate(-50%,-50%) rotate(18deg);
  animation: slow-spin 20s linear infinite;
}
.hero-orbit::after { width: 35%; border-color: rgba(var(--accent-rgb),.5); animation-direction: reverse; animation-duration: 13s; }
.orbit-core { position: absolute; left: 50%; top: 50%; z-index: 2; width: 114px; height: 114px; display: grid; place-items: center; border-radius: 50%; background: rgba(var(--accent-rgb),.12); border: 1px solid rgba(var(--accent-rgb),.55); transform: translate(-50%,-50%); box-shadow: 0 0 60px rgba(var(--accent-rgb),.24); font-family: var(--mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.orbit-note { position: absolute; z-index: 2; max-width: 145px; color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.orbit-note:nth-child(2) { left: 8%; top: 18%; }
.orbit-note:nth-child(3) { right: 7%; top: 23%; text-align: right; }
.orbit-note:nth-child(4) { left: 12%; bottom: 15%; }
.orbit-note:nth-child(5) { right: 9%; bottom: 13%; text-align: right; }

.section { padding: clamp(88px, 12vw, 160px) 0; border-top: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 24px; margin-bottom: 50px; }
.section-index { color: var(--accent); }
.section h2 { max-width: 850px; margin: 0; font-size: clamp(38px, 6.2vw, 78px); font-weight: 480; line-height: 1; letter-spacing: -.05em; }
.section-intro { max-width: 720px; margin: 22px 0 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.card { min-height: 210px; padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); }
.card .label { color: var(--accent); }
.card h3 { margin: 50px 0 12px; font-size: 25px; font-weight: 500; letter-spacing: -.025em; }
.card p { margin: 0; color: var(--muted); line-height: 1.65; }
.card strong { color: var(--text); }
.definition { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: var(--line); }
.definition > div { padding: clamp(28px, 5vw, 58px); background: var(--bg); }
.definition h3 { margin: 0 0 18px; font-size: clamp(28px, 4vw, 46px); font-weight: 500; letter-spacing: -.035em; }
.definition p { color: var(--muted); font-size: 17px; line-height: 1.7; }

.instrument { min-height: 0; padding: clamp(22px, 4vw, 40px); }
.instrument-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 22px; margin-bottom: 30px; }
.instrument-head h3 { margin: 0; font-size: clamp(26px, 4vw, 44px); font-weight: 500; letter-spacing: -.04em; }
.status { color: var(--accent); }
.controls { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
.control { padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: rgba(0,0,0,.16); }
.control label { display: block; margin-bottom: 11px; color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .09em; text-transform: uppercase; }
.control input[type="range"] { width: 100%; accent-color: var(--accent); }
.control input[type="text"], .control textarea, .control select {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0,0,0,.3);
  color: var(--text);
}
.control textarea { min-height: 88px; resize: vertical; }
.readout { min-height: 210px; display: grid; place-items: center; padding: 26px; border: 1px solid rgba(var(--accent-rgb),.25); border-radius: 20px; background: radial-gradient(circle at 50% 45%, rgba(var(--accent-rgb),.12), transparent 60%), rgba(0,0,0,.18); }
.readout-copy { max-width: 690px; text-align: center; }
.readout-copy .label { color: var(--accent); }
.readout-copy h4 { margin: 12px 0 8px; font-size: clamp(24px, 4vw, 42px); font-weight: 500; letter-spacing: -.03em; }
.readout-copy p { margin: 0; color: var(--muted); }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.chip { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; font-family: var(--mono); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.chip[aria-pressed="true"], .chip.active { border-color: var(--accent); background: rgba(var(--accent-rgb),.13); color: var(--text); }

.flow { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 8px; margin: 24px 0; }
.flow-step { position: relative; min-height: 125px; padding: 18px 14px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); cursor: pointer; }
.flow-step::after { content: "→"; position: absolute; right: -9px; top: 46%; z-index: 2; color: var(--dim); }
.flow-step:last-child::after { display: none; }
.flow-step .micro { color: var(--accent); }
.flow-step strong { display: block; margin-top: 30px; font-weight: 520; }
.flow-step.active { border-color: var(--accent); background: rgba(var(--accent-rgb),.12); box-shadow: 0 0 42px rgba(var(--accent-rgb),.08); }

.comparison { display: grid; grid-template-columns: 1fr 90px 1fr; gap: 20px; align-items: stretch; }
.comparison-panel { min-height: 250px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: rgba(0,0,0,.15); }
.comparison-panel h4 { margin: 0 0 14px; font-size: 24px; }
.comparison-mark { display: grid; place-items: center; color: var(--accent); font-family: var(--serif); font-size: 44px; }
.meter { height: 8px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.07); }
.meter > span { display: block; height: 100%; width: 50%; border-radius: inherit; background: var(--accent); box-shadow: 0 0 18px rgba(var(--accent-rgb),.4); transition: width .35s ease; }
.metric { display: grid; grid-template-columns: 150px 1fr 54px; gap: 12px; align-items: center; margin: 13px 0; color: var(--muted); font-size: 12px; }
.metric output { color: var(--text); font-family: var(--mono); text-align: right; }

.notes { border-left: 1px solid var(--accent); padding: 6px 0 6px 24px; color: var(--muted); }
.notes strong { color: var(--text); }
.provenance { display: flex; flex-wrap: wrap; gap: 8px; }
.provenance span { padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .06em; }
.provenance .known { border-color: rgba(101,197,167,.45); color: #86d5bd; }
.provenance .proposed { border-color: rgba(214,173,98,.45); color: #d6ad62; }
.provenance .open { border-color: rgba(131,174,246,.45); color: #83aef6; }

.field-relations { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-top: clamp(64px,9vw,120px); padding: 24px 0; border-top: 1px solid var(--line); }
.field-relations__label { flex: 0 0 auto; color: var(--dim); font-family: var(--mono); font-size: 9px; letter-spacing: .09em; text-transform: uppercase; }
.field-relations__links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; }
.field-relations a { color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.field-relations a:hover { color: var(--accent); }

.site-footer { display: flex; justify-content: space-between; gap: 30px; padding: 38px 0 56px; border-top: 1px solid var(--line); color: var(--dim); font-family: var(--mono); font-size: 9px; letter-spacing: .09em; text-transform: uppercase; }

.hero-art {
  position: relative;
  min-height: 500px;
  margin: 0;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid rgba(var(--accent-rgb),.28);
  border-radius: 30px;
  background: #05070d;
  box-shadow: inset 0 1px rgba(255,255,255,.06), 0 32px 100px rgba(0,0,0,.34);
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 42%, rgba(3,5,10,.88) 100%), linear-gradient(90deg, rgba(3,5,10,.22), transparent 55%);
  pointer-events: none;
}
.hero-art::after {
  content: "";
  position: absolute;
  inset: 16px;
  z-index: 2;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 21px;
  pointer-events: none;
}
.hero-art img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-art__top, .hero-art__bottom { position: absolute; left: 30px; right: 30px; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.hero-art__top { top: 30px; }
.hero-art__bottom { bottom: 28px; align-items: flex-end; }
.visual-chip { padding: 8px 10px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; background: rgba(3,5,10,.56); color: rgba(255,255,255,.8); backdrop-filter: blur(10px); font-family: var(--mono); font-size: 8px; letter-spacing: .11em; text-transform: uppercase; }
.hero-art__caption { max-width: 300px; margin: 0; color: rgba(255,255,255,.72); font-family: var(--mono); font-size: 9px; letter-spacing: .08em; line-height: 1.55; text-transform: uppercase; }
.hero-art__index { color: var(--accent); font-family: var(--serif); font-size: 42px; line-height: 1; }
.visual-interlude { position: relative; min-height: 390px; margin: 0 0 clamp(88px,12vw,160px); overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: #05070d; }
.visual-interlude::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,5,10,.92) 0%, rgba(3,5,10,.42) 52%, transparent 100%); pointer-events: none; }
.visual-interlude img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.visual-interlude figcaption { position: absolute; left: clamp(24px,5vw,58px); top: 50%; z-index: 2; width: min(430px, calc(100% - 48px)); transform: translateY(-50%); }
.visual-interlude strong { display: block; margin-top: 12px; color: var(--text); font-size: clamp(28px,4vw,48px); font-weight: 500; letter-spacing: -.04em; line-height: 1.05; }
.visual-interlude .label { color: var(--accent); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes slow-spin { to { transform: translate(-50%,-50%) rotate(378deg); } }

@media (max-width: 900px) {
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 92px; }
  .hero-orbit { min-height: 380px; }
  .hero-art { min-height: 460px; }
  .grid { grid-template-columns: 1fr 1fr; }
  .controls { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-step:nth-child(3)::after { display: none; }
  .comparison { grid-template-columns: 1fr; }
  .comparison-mark { min-height: 50px; }
}
@media (max-width: 640px) {
  .site-nav { width: min(100% - 20px, 620px); }
  .nav-links a:not(:last-child) { display: none; }
  .shell { width: min(100% - 20px, 620px); }
  .hero { padding: 72px 4px; }
  .hero h1 { font-size: clamp(54px, 18vw, 90px); }
  .hero-art { min-height: 380px; border-radius: 22px; }
  .hero-art__top, .hero-art__bottom { left: 20px; right: 20px; }
  .hero-art__index { display: none; }
  .visual-interlude { min-height: 330px; border-radius: 22px; }
  .section-head { grid-template-columns: 1fr; }
  .grid, .grid--2, .definition { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-step:nth-child(3)::after { display: block; }
  .flow-step:nth-child(2n)::after { display: none; }
  .instrument { border-radius: 22px; }
  .instrument-head { flex-direction: column; }
  .field-relations { flex-direction: column; }
  .field-relations__links { justify-content: flex-start; }
  .site-footer { flex-direction: column; }
  .metric { grid-template-columns: 98px 1fr 44px; }
}
@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; }
}