/* Shape.space — Three-Gen / visual system v2 */
.site-nav {
  height: 72px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 30px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  position: relative;
  z-index: 20;
}
.shape-lockup { display: inline-flex; align-items: center; gap: 12px; width: max-content; text-decoration: none; font-size: 13px; font-weight: 650; letter-spacing: -.01em; }
.shape-lockup svg { width: 42px; height: 24px; overflow: visible; }
.shape-lockup path { fill: none; stroke: var(--ink); stroke-width: 1.2; opacity: .9; }
.shape-lockup circle { fill: var(--g3); }
.site-nav nav { display: flex; gap: 28px; }
.site-nav nav a { text-decoration: none; font-size: 12px; color: var(--muted); transition: color .2s ease; }
.site-nav nav a:hover { color: var(--ink); }
.nav-status { justify-self: end; display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; }
.nav-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 18px rgba(134,230,182,.5); }

main { max-width: var(--max); margin: 0 auto; padding: 0 30px 70px; }
.hero {
  min-height: 500px;
  padding: 94px 0 76px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .55fr);
  align-items: end;
  gap: 72px;
  position: relative;
}
.hero-copy, .hero-rule { position: relative; z-index: 2; }
.overline { margin: 0 0 22px; font: 700 10px/1 var(--mono); letter-spacing: .16em; color: var(--muted); }
.hero h1 {
  margin: 0;
  max-width: 1000px;
  font-size: clamp(58px, 7.25vw, 118px);
  line-height: .87;
  letter-spacing: -.067em;
  font-weight: 520;
}
.hero h1 span { color: #8a8993; }
.hero-deck { max-width: 720px; margin: 30px 0 0; color: var(--ink-2); font-size: clamp(15px, 1.25vw, 19px); line-height: 1.55; letter-spacing: -.018em; }
.hero-deck em { color: var(--ink); font-style: normal; }
.hero-rule { align-self: end; padding: 22px 0 4px; border-top: 1px solid var(--hairline); display: grid; gap: 7px; }
.hero-rule span { font: 700 9px/1 var(--mono); letter-spacing: .14em; color: var(--muted); margin-bottom: 12px; }
.hero-rule strong { font-size: clamp(22px, 2vw, 34px); line-height: 1; letter-spacing: -.04em; font-weight: 520; }
.hero-rule strong:last-child { color: var(--g3); }
.hero-orbit { position: absolute; width: 760px; height: 500px; right: -190px; top: -40px; opacity: .22; pointer-events: none; filter: blur(.1px); }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; transform: rotate(-18deg); }
.orbit-a { width: 700px; height: 230px; right: 0; top: 80px; }
.orbit-b { width: 570px; height: 190px; right: 80px; top: 165px; border-color: rgba(105,216,255,.28); }
.orbit-c { width: 390px; height: 128px; right: 176px; top: 250px; border-color: rgba(169,150,255,.34); }

shape-three-gen-explorer { display: block; }
.tg-shell {
  position: relative;
  min-height: 780px;
  border-radius: 34px;
  overflow: hidden;
  background:
    radial-gradient(680px 500px at 51% 45%, rgba(105,216,255,.08), transparent 60%),
    radial-gradient(500px 440px at 73% 46%, rgba(169,150,255,.09), transparent 66%),
    #0e0e11;
  box-shadow: 0 60px 140px rgba(0,0,0,.38), inset 0 0 0 1px rgba(255,255,255,.07);
}
.tg-shell::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.085) .7px, transparent .8px);
  background-size: 28px 28px;
  opacity: .22;
  mask-image: radial-gradient(circle at 48% 45%, black 0 34%, transparent 72%);
}
.tg-topbar {
  position: relative; z-index: 10;
  display: flex; align-items: center; gap: 22px;
  padding: 24px 26px 0;
}
.tg-title { margin-right: auto; }
.tg-title p { margin: 0 0 6px; font: 700 9px/1 var(--mono); letter-spacing: .14em; color: var(--muted); }
.tg-title h2 { margin: 0; font-size: 19px; letter-spacing: -.025em; font-weight: 580; }
.gen-switch { display: inline-flex; align-items: center; padding: 5px; border-radius: 999px; background: rgba(255,255,255,.055); box-shadow: inset 0 0 0 1px rgba(255,255,255,.06); }
.gen-switch button { border: 0; background: transparent; color: var(--muted); border-radius: 999px; padding: 9px 13px; cursor: pointer; font-size: 11px; transition: color .2s ease, background .2s ease, transform .2s ease; }
.gen-switch button:hover { color: var(--ink); }
.gen-switch button.is-active { color: var(--ink); background: rgba(255,255,255,.105); box-shadow: 0 8px 26px rgba(0,0,0,.16); }
.gen-switch button strong { font-weight: 650; }
.tg-runtime { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 10px; }
.tg-runtime i { width: 6px; height: 6px; background: var(--ok); border-radius: 50%; }

.tg-stage {
  position: relative; z-index: 2;
  min-height: 700px;
  padding: 20px 380px 28px 28px;
}
.arch-stage {
  position: relative;
  height: 455px;
  perspective: 1200px;
  transform-style: preserve-3d;
}
.arch-stack {
  position: absolute;
  inset: 26px 10px 4px 10px;
  transform-style: preserve-3d;
}
.arch-layer {
  --layer-accent: var(--g1);
  --layer-soft: var(--g1-soft);
  position: absolute;
  left: 5%;
  width: 76%;
  height: 220px;
  appearance: none;
  border: 0;
  text-align: left;
  color: inherit;
  cursor: pointer;
  border-radius: 28px;
  padding: 28px 30px;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  align-items: start;
  background:
    linear-gradient(135deg, rgba(255,255,255,.105), rgba(255,255,255,.035)),
    rgba(18,18,22,.72);
  box-shadow:
    0 30px 70px rgba(0,0,0,.32),
    inset 0 0 0 1px rgba(255,255,255,.11),
    inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter: blur(20px);
  transform-origin: 50% 50%;
  transition: transform .55s cubic-bezier(.2,.8,.2,1), opacity .35s ease, filter .35s ease, background .35s ease;
}
.arch-layer[data-gen="1"] { --layer-accent: var(--g1); --layer-soft: var(--g1-soft); top: 10px; transform: translate3d(-22px, -5px, -120px) rotateX(58deg) rotateZ(-3.2deg); }
.arch-layer[data-gen="2"] { --layer-accent: var(--g2); --layer-soft: var(--g2-soft); top: 100px; transform: translate3d(28px, 0, -30px) rotateX(58deg) rotateZ(1.2deg); }
.arch-layer[data-gen="3"] { --layer-accent: var(--g3); --layer-soft: var(--g3-soft); top: 190px; transform: translate3d(78px, 6px, 70px) rotateX(58deg) rotateZ(4.4deg); }
.arch-layer::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: radial-gradient(480px 190px at 78% 0%, var(--layer-soft), transparent 70%); opacity: .9; pointer-events: none; }
.arch-layer::after { content: ""; position: absolute; left: 30px; right: 30px; bottom: 22px; height: 2px; border-radius: 99px; background: linear-gradient(90deg, var(--layer-accent), transparent 65%); opacity: .65; }
.arch-layer:hover { filter: brightness(1.08); }
.arch-layer.is-dim { opacity: .47; }
.arch-layer.is-selected { opacity: 1; filter: brightness(1.1); }
.arch-layer[data-gen="1"].is-selected { transform: translate3d(-10px,-16px,20px) rotateX(52deg) rotateZ(-2.4deg) scale(1.025); }
.arch-layer[data-gen="2"].is-selected { transform: translate3d(40px,-8px,70px) rotateX(52deg) rotateZ(.7deg) scale(1.025); }
.arch-layer[data-gen="3"].is-selected { transform: translate3d(88px,-2px,130px) rotateX(52deg) rotateZ(3.5deg) scale(1.025); }
.layer-gen { position: relative; z-index: 2; display: grid; gap: 4px; color: var(--layer-accent); }
.layer-gen small { font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.layer-gen strong { font-size: 58px; line-height: .9; letter-spacing: -.065em; font-weight: 520; }
.layer-body { position: relative; z-index: 2; min-width: 0; }
.layer-body .layer-role { display: block; margin-bottom: 8px; color: var(--layer-accent); font: 700 9px/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; }
.layer-body h3 { margin: 0; font-size: clamp(22px,2.1vw,34px); line-height: 1; letter-spacing: -.045em; font-weight: 560; }
.layer-body p { margin: 13px 0 0; max-width: 620px; color: var(--ink-2); font-size: 13px; line-height: 1.5; }
.layer-adds { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 16px; }
.layer-adds span { padding: 6px 9px; border-radius: 999px; background: rgba(255,255,255,.06); color: #b8b7bd; font-size: 9px; }

.tg-inspector {
  position: absolute;
  z-index: 9;
  right: 22px;
  top: 22px;
  width: 340px;
  min-height: 545px;
  padding: 24px;
  border-radius: 26px;
  background: rgba(25,25,30,.75);
  box-shadow: 0 28px 70px rgba(0,0,0,.3), inset 0 0 0 1px rgba(255,255,255,.095);
  backdrop-filter: blur(22px);
}
.inspector-eyebrow { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font: 700 9px/1 var(--mono); letter-spacing: .12em; }
.inspector-origin { display: inline-flex; align-items: center; gap: 6px; color: var(--g3); }
.inspector-origin::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 18px currentColor; }
.inspector-origin.g1 { color: var(--g1); }.inspector-origin.g2 { color: var(--g2); }.inspector-origin.g3 { color: var(--g3); }
.inspector-member { margin: 28px 0 10px; font-size: 29px; line-height: 1; letter-spacing: -.045em; font-weight: 560; overflow-wrap: anywhere; }
.inspector-type { color: var(--muted); font: 10px/1 var(--mono); text-transform: uppercase; letter-spacing: .11em; }
.inspector-description { margin: 28px 0 0; color: var(--ink-2); font-size: 13px; line-height: 1.62; }
.lineage-mini { margin-top: 26px; }
.lineage-mini-label { margin-bottom: 12px; color: var(--muted); font: 700 8px/1 var(--mono); letter-spacing: .12em; }
.lineage-track { display: grid; grid-template-columns: repeat(3,1fr); position: relative; }
.lineage-track::before { content: ""; position: absolute; left: 12px; right: 12px; top: 7px; height: 1px; background: rgba(255,255,255,.15); }
.lineage-track span { position: relative; z-index: 1; display: grid; gap: 9px; justify-items: start; color: var(--muted); font: 8px/1 var(--mono); }
.lineage-track span::before { content: ""; width: 13px; height: 13px; border-radius: 50%; background: #24242a; box-shadow: inset 0 0 0 1px rgba(255,255,255,.18); }
.lineage-track span.on { color: var(--ink-2); }.lineage-track span.on::before { background: currentColor; box-shadow: 0 0 18px rgba(255,255,255,.15); }
.ownership-card { margin-top: 28px; padding: 16px 17px; border-radius: 18px; background: rgba(255,255,255,.055); }
.ownership-card strong { display: block; margin-bottom: 8px; color: var(--ink); font-size: 11px; }
.ownership-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.5; }

.tg-lower {
  display: grid;
  grid-template-columns: minmax(0,1.35fr) minmax(280px,.75fr);
  gap: 16px;
  padding-right: 0;
}
.provenance-panel, .demo-panel {
  border-radius: 24px;
  background: rgba(255,255,255,.04);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.065);
  min-width: 0;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 18px 18px 8px; }
.panel-head strong { font-size: 12px; font-weight: 620; letter-spacing: -.01em; }
.panel-head span { color: var(--muted); font: 8px/1 var(--mono); letter-spacing: .09em; }
.prov-flow { padding: 8px 16px 18px; display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; }
.prov-pill {
  position: relative;
  min-height: 66px;
  padding: 12px 12px 10px;
  border: 0;
  border-radius: 15px;
  background: rgba(255,255,255,.045);
  color: var(--ink-2);
  text-align: left;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease;
}
.prov-pill:hover { transform: translateY(-2px); background: rgba(255,255,255,.075); }
.prov-pill.is-selected { background: rgba(255,255,255,.10); }
.prov-pill i { position: absolute; width: 6px; height: 6px; border-radius: 50%; right: 10px; top: 10px; background: var(--pill-color, var(--g1)); box-shadow: 0 0 15px var(--pill-color, var(--g1)); }
.prov-pill span { display: block; font-size: 10px; line-height: 1.25; overflow-wrap: anywhere; }
.prov-pill small { display: block; margin-top: 8px; color: var(--muted); font: 8px/1 var(--mono); }

.demo-panel { padding-bottom: 18px; }
.demo-stage { min-height: 154px; padding: 10px 18px 4px; display: grid; align-content: center; }
.demo-caption { margin-bottom: 11px; color: var(--muted); font: 8px/1.3 var(--mono); letter-spacing: .06em; }
.contract-card { padding: 14px 15px; border-radius: 17px; background: var(--g1-soft); box-shadow: inset 0 0 0 1px rgba(255,182,110,.23); }
.contract-card strong { color: var(--g1); font-size: 10px; }
.contract-card ul { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.contract-card li { padding: 5px 7px; border-radius: 999px; background: rgba(0,0,0,.16); color: var(--ink-2); font: 8px/1 var(--mono); }

three-gen-text-box, shape-prompt-box, base-input { display: block; }
.tg-field { display: grid; gap: 8px; }
.tg-field-label { font-size: 11px; font-weight: 600; }
.tg-input-wrap { display: flex; align-items: center; overflow: hidden; min-height: 45px; border-radius: 14px; background: rgba(255,255,255,.07); box-shadow: inset 0 0 0 1px rgba(255,255,255,.09); }
.tg-input-wrap:focus-within { box-shadow: inset 0 0 0 1px var(--g2), 0 0 0 4px rgba(105,216,255,.08); }
.tg-input-wrap input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 0 13px; background: transparent; color: var(--ink); font-size: 12px; }
.tg-field-note { min-height: 14px; color: var(--muted); font-size: 9px; }
.tg-field[data-invalid="true"] .tg-input-wrap { box-shadow: inset 0 0 0 1px var(--danger); }
.shape-prompt { padding: 14px; border-radius: 18px; background: linear-gradient(145deg, rgba(169,150,255,.13), rgba(255,255,255,.035)); box-shadow: inset 0 0 0 1px rgba(169,150,255,.2); }
.prompt-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 9px; }
.prompt-head strong { font-size: 10px; letter-spacing: .02em; }
.context-chip { color: var(--g3); font: 8px/1 var(--mono); }
.shape-prompt button { border: 0; margin: 5px; padding: 0 12px; min-height: 35px; border-radius: 10px; background: var(--g3); color: #131018; font-size: 9px; font-weight: 800; cursor: pointer; }
.prompt-meta { display: flex; justify-content: space-between; gap: 10px; margin-top: 8px; color: var(--muted); font: 8px/1 var(--mono); }
.prompt-event { color: var(--ok); }

.principles { padding: 110px 0 92px; display: grid; grid-template-columns: .75fr 1.55fr; gap: 90px; align-items: start; }
.section-lead h2 { margin: 0; max-width: 440px; font-size: clamp(40px,4.2vw,68px); line-height: .96; letter-spacing: -.055em; font-weight: 520; }
.principle-flow { display: grid; }
.principle-flow article { display: grid; grid-template-columns: 76px 1fr; gap: 22px; padding: 25px 0; border-top: 1px solid var(--hairline); }
.principle-flow article:last-child { border-bottom: 1px solid var(--hairline); }
.principle-flow article > span { color: var(--muted); font: 500 31px/1 var(--sans); letter-spacing: -.05em; }
.principle-flow strong { display: block; margin-bottom: 6px; font-size: 19px; letter-spacing: -.03em; }
.principle-flow p { margin: 0; max-width: 620px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.principles blockquote { grid-column: 1 / -1; margin: 0; padding: 52px 0 0; font-size: clamp(30px,4vw,62px); line-height: 1.05; letter-spacing: -.055em; font-weight: 500; color: #aaa9b1; }

.implementation { padding: 86px 0 74px; border-top: 1px solid var(--hairline); }
.implementation-copy { display: grid; grid-template-columns: .5fr 1.1fr 1fr; gap: 30px; align-items: start; margin-bottom: 48px; }
.implementation-copy .overline { margin: 8px 0 0; }
.implementation-copy h2 { margin: 0; font-size: 44px; line-height: 1; letter-spacing: -.05em; font-weight: 520; }
.implementation-copy > p:last-child { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.code-lineage { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 16px; align-items: center; margin-top: 14px; }
.code-lineage > div { min-width: 0; padding: 22px 24px; border-radius: 20px; background: rgba(255,255,255,.045); box-shadow: inset 0 0 0 1px var(--hairline-soft); }
.code-lineage span { display: block; margin-bottom: 7px; color: var(--muted); font: 700 8px/1 var(--mono); letter-spacing: .12em; }
.code-lineage code { font-size: clamp(13px,1.25vw,18px); color: var(--ink); }
.code-lineage b { color: var(--muted); font-size: 20px; font-weight: 400; }
.code-lineage.compact { opacity: .72; }

footer { max-width: var(--max); margin: 0 auto; padding: 24px 30px 38px; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; gap: 20px; color: #5d5c65; font: 8px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }

@media (max-width: 1200px) {
  .tg-stage { padding-right: 320px; }
  .tg-inspector { width: 292px; }
  .arch-layer { width: 78%; }
  .prov-flow { grid-template-columns: repeat(3,1fr); }
}

@media (max-width: 940px) {
  .site-nav { grid-template-columns: 1fr auto; }
  .site-nav nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding: 70px 0 54px; gap: 44px; }
  .hero-rule { max-width: 560px; }
  .tg-shell { min-height: 0; }
  .tg-topbar { flex-wrap: wrap; }
  .tg-title { width: 100%; }
  .tg-runtime { display: none; }
  .tg-stage { padding: 16px 18px 22px; }
  .arch-stage { height: 420px; }
  .arch-layer { width: 74%; left: 2%; }
  .tg-inspector { position: relative; inset: auto; width: auto; min-height: 0; margin-top: 8px; display: grid; grid-template-columns: .8fr 1fr; gap: 28px; }
  .inspector-description { margin-top: 0; }
  .lineage-mini, .ownership-card { grid-column: 2; }
  .tg-lower { grid-template-columns: 1fr; margin-top: 14px; }
  .principles { grid-template-columns: 1fr; gap: 48px; }
  .implementation-copy { grid-template-columns: 1fr; gap: 12px; }
}

@media (max-width: 680px) {
  .site-nav { height: 60px; padding: 0 16px; }
  .nav-status { display: none; }
  main { padding: 0 12px 48px; }
  .hero { padding: 58px 4px 42px; }
  .hero h1 { font-size: clamp(54px,15vw,76px); }
  .hero-deck { font-size: 14px; }
  .hero-orbit { display: none; }
  .tg-shell { border-radius: 24px; }
  .tg-topbar { padding: 20px 16px 0; gap: 14px; }
  .gen-switch { width: 100%; justify-content: stretch; }
  .gen-switch button { flex: 1; }
  .arch-stage { height: 370px; }
  .arch-stack { inset: 15px 0 0; }
  .arch-layer { left: 2%; width: 92%; height: 176px; padding: 21px; grid-template-columns: 58px 1fr; border-radius: 22px; }
  .arch-layer[data-gen="1"] { top: 0; transform: translate3d(-8px,0,-80px) rotateX(62deg) rotateZ(-2deg); }
  .arch-layer[data-gen="2"] { top: 78px; transform: translate3d(8px,0,-20px) rotateX(62deg) rotateZ(.8deg); }
  .arch-layer[data-gen="3"] { top: 156px; transform: translate3d(24px,0,40px) rotateX(62deg) rotateZ(3deg); }
  .arch-layer[data-gen="1"].is-selected { transform: translate3d(-3px,-8px,5px) rotateX(57deg) rotateZ(-1.5deg); }
  .arch-layer[data-gen="2"].is-selected { transform: translate3d(12px,-5px,40px) rotateX(57deg) rotateZ(.5deg); }
  .arch-layer[data-gen="3"].is-selected { transform: translate3d(28px,-3px,70px) rotateX(57deg) rotateZ(2.5deg); }
  .layer-gen strong { font-size: 38px; }
  .layer-body h3 { font-size: 21px; }
  .layer-body p { font-size: 10px; margin-top: 8px; line-height: 1.35; }
  .layer-adds { margin-top: 10px; gap: 4px; }
  .layer-adds span { font-size: 7px; padding: 4px 6px; }
  .tg-inspector { grid-template-columns: 1fr; padding: 19px; border-radius: 20px; }
  .inspector-description, .lineage-mini, .ownership-card { grid-column: auto; }
  .prov-flow { grid-template-columns: repeat(2,1fr); }
  .principles { padding: 78px 4px 66px; }
  .principle-flow article { grid-template-columns: 50px 1fr; gap: 14px; }
  .principles blockquote { font-size: 36px; }
  .implementation { padding: 64px 4px 50px; }
  .code-lineage { grid-template-columns: 1fr; }
  .code-lineage b { transform: rotate(90deg); justify-self: center; }
  footer { padding: 20px 16px 28px; flex-direction: column; gap: 8px; }
}