:root {
  color-scheme: dark;
  font-family: Inter, system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #f3f6ee;
  background: #0a0c0a;
  line-height: 1.65;
  --surface: #11150f;
  --border: #2a3328;
  --muted: #afb9aa;
  --accent: #d5ff48;
  --accent-soft: #9ba888;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
}

* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin-top: 0; }
a { color: var(--accent); text-underline-offset: .23em; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.sr-only, .skip:not(:focus), .status:empty {
  position: absolute;
  width: 1px;
  height: 1px;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}
.skip:focus { position: fixed; top: 1rem; left: 1rem; z-index: 5; padding: .7rem; background: #0a0c0a; }
.wrap { width: min(74rem, calc(100% - 4rem)); margin-inline: auto; }

.site-header { border-bottom: 1px solid var(--border); }
.header-row { display: flex; align-items: center; justify-content: space-between; min-height: 4.5rem; gap: .6rem 1.2rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 850; color: #f3f6ee; text-decoration: none; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border: 1px solid #879d54; border-radius: .3rem; color: var(--accent); font: 800 1.15rem var(--mono); }
nav { display: flex; flex-wrap: wrap; gap: .55rem clamp(1rem, 3.5vw, 2.65rem); }
nav a { color: var(--muted); font-weight: 620; text-decoration: none; white-space: nowrap; }
nav a:hover { color: var(--accent); }

.hero {
  background-image: radial-gradient(circle, #65795255 1px, transparent 1px),
                    radial-gradient(ellipse at 81% 48%, #202a16 0%, transparent 54%);
  background-size: 23px 23px, auto;
  background-position: center;
  border-bottom: 1px solid var(--border);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.16fr) minmax(0, 1fr); align-items: center; gap: clamp(1.5rem, 5.5vw, 5rem); padding-block: clamp(2.65rem, 4.5vw, 4rem); }
.hero-intro { align-self: center; }
.eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; font: 700 .79rem/1.5 var(--mono); letter-spacing: .105em; color: #c8d2bb; margin: 0 0 1.15rem; }
.eyebrow span[aria-hidden="true"]:not(.signal) { color: var(--accent-soft); }
.signal { display: inline-block; width: .48rem; height: .48rem; border-radius: 50%; background: var(--accent); box-shadow: 0 0 .6rem #d5ff4866; flex: none; }
h1 { font-size: clamp(3.4rem, 7.8vw, 7.2rem); font-weight: 850; letter-spacing: -.08em; line-height: 1.03; margin-bottom: 1.25rem; }
h1 span { display: block; color: var(--accent); letter-spacing: -.085em; }
.lead { color: #c0cabc; max-width: 36rem; font-size: clamp(1.03rem, 1.7vw, 1.22rem); margin-bottom: 1.45rem; }
.actions { display: flex; flex-wrap: wrap; gap: .7rem; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: .66rem 1.05rem; min-height: 2.9rem; border: 1px solid transparent; border-radius: .4rem; font-weight: 760; text-decoration: none; white-space: nowrap; transition: background-color .18s, color .18s, border-color .18s; }
.primary { color: #181d0e; background: var(--accent); }
.primary:hover { background: #e7ff93; }
.secondary, .header-link { color: #e9efdf; border-color: #4c5748; background: #0e130de8; }
.secondary:hover, .header-link:hover { border-color: var(--accent); color: var(--accent); }
.header-link { color: var(--accent); min-height: 2.5rem; font-size: .88rem; }

.hero-visual { margin: 0; padding: .6rem; background: #11160f; border: 1px solid #47533e; border-radius: .8rem; box-shadow: 0 1.2rem 4rem #05070490; }
.robot-stage {
  position: relative;
  display: grid;
  place-items: center;
  height: clamp(17rem, 27.5vw, 23rem);
  overflow: hidden;
  isolation: isolate;
  border: 1px solid #2b372e;
  border-radius: .45rem;
  background-image: linear-gradient(90deg, #43523a32 1px, transparent 1px),
                    linear-gradient(#43523a32 1px, transparent 1px),
                    radial-gradient(ellipse at 50% 52%, #26311d 0%, #0a0d09 73%);
  background-size: 30px 30px, 30px 30px, auto;
  background-position: center;
  transform: perspective(1000px) rotateX(var(--stage-x, 0deg)) rotateY(var(--stage-y, 0deg));
  transition: transform .3s cubic-bezier(.2, .7, .3, 1);
}
.robot-stage::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse at center, transparent 50%, #05080560 100%); }
.robot-stage img { width: auto; height: 118%; max-width: 102%; object-fit: contain; mix-blend-mode: screen; position: absolute; z-index: 1; }
.orbit {
  position: absolute;
  left: 50%;
  top: 48%;
  width: min(90%, 24rem);
  aspect-ratio: 1;
  border: 1px solid #d5ff4836;
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-29deg) scaleY(.57);
  pointer-events: none;
}
.orbit::before {
  content: "";
  position: absolute;
  inset: 9%;
  border: 1px dashed #d5ff482b;
  border-radius: 50%;
}
.orbit-trace {
  position: absolute;
  inset: -1px;
  border: 1px solid transparent;
  border-radius: 50%;
  border-top-color: #dcff8499;
}
.orbit-trace::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -3px;
  width: .42rem;
  height: .42rem;
  border-radius: 50%;
  background: #e8ffab;
  box-shadow: 0 0 .8rem .17rem #d5ff4880;
}
.scan-light {
  position: absolute;
  inset: 0 10%;
  height: 3rem;
  z-index: 2;
  border-bottom: 1px solid #e0ff8c81;
  background: linear-gradient(transparent, #d5ff481a);
  opacity: 0;
  pointer-events: none;
}
.viewfinder {
  position: absolute;
  inset: 8%;
  z-index: 2;
  background: linear-gradient(var(--accent), var(--accent)) left top / 1.3rem 1px,
              linear-gradient(var(--accent), var(--accent)) left top / 1px 1.3rem,
              linear-gradient(var(--accent), var(--accent)) right top / 1.3rem 1px,
              linear-gradient(var(--accent), var(--accent)) right top / 1px 1.3rem,
              linear-gradient(var(--accent), var(--accent)) left bottom / 1.3rem 1px,
              linear-gradient(var(--accent), var(--accent)) left bottom / 1px 1.3rem,
              linear-gradient(var(--accent), var(--accent)) right bottom / 1.3rem 1px,
              linear-gradient(var(--accent), var(--accent)) right bottom / 1px 1.3rem;
  background-repeat: no-repeat;
  pointer-events: none;
  opacity: .72;
}
figcaption { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .65rem .6rem .25rem; }
figcaption strong, figcaption small { display: block; }
figcaption small { color: var(--muted); font: .8rem/1.4 var(--mono); }
.launch-status { display: inline-flex; align-items: center; gap: .5rem; font-size: .86rem; font-weight: 680; color: var(--accent); white-space: nowrap; }
.visual-controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .35rem .7rem; }
.motion-toggle {
  padding: .2rem .55rem;
  min-height: 2.1rem;
  border: 1px solid var(--border);
  border-radius: .3rem;
  background: #0d110c;
  color: var(--muted);
  font-size: .8rem;
  white-space: nowrap;
}
.motion-toggle:hover { border-color: var(--accent); color: var(--accent); }

.contract { padding-block: 1.3rem 1.5rem; }
.contract-head { display: flex; flex-wrap: wrap; gap: .2rem 1rem; align-items: baseline; margin-bottom: .65rem; }
.contract-head h2 { font-size: 1rem; margin: 0; }
.contract-head p { color: var(--muted); font-size: .89rem; margin: 0; }
.contract-controls { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: start; gap: .55rem; }
.address { width: 100%; min-height: 2.9rem; resize: none; padding: .64rem .8rem; border: 1px solid var(--border); border-radius: .4rem; background: #0e120d; color: #f3f6ee; font: .96rem/1.55 var(--mono); overflow-wrap: anywhere; }
.status { color: var(--accent); margin: .6rem 0 0; }

.band { background: #0e120d; border-block: 1px solid var(--border); }
.section { padding-block: clamp(2.55rem, 6vw, 4.75rem); }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .45rem 1rem; margin-bottom: 1.35rem; }
.section-head h2 { font-size: clamp(1.9rem, 4.2vw, 2.75rem); letter-spacing: -.04em; line-height: 1.18; margin: 0; }
.section-head p, .note { color: var(--muted); margin: 0; }
.link { font-weight: 650; }
.metrics, .evidence-grid { display: grid; gap: .85rem; }
.metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.evidence-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
.card, .flow, .mint-strip { padding: clamp(1rem, 3vw, 1.65rem); border: 1px solid var(--border); border-radius: .65rem; background: var(--surface); }
.card h3, .flow h3, .mint-strip h3 { font-size: 1.05rem; margin: 0 0 .55rem; }
.card p { color: var(--muted); margin: 0; overflow-wrap: anywhere; }
.metric { display: block; color: var(--accent); font: 700 clamp(1.8rem, 3.8vw, 2.65rem)/1.1 var(--mono); letter-spacing: -.055em; margin-bottom: .65rem; }

.flow { margin-top: .85rem; }
.flow-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .25rem 1rem; }
.flow-heading h3 { margin: 0; }
.flow-heading > span, .flow-labels span { color: var(--muted); font-size: .9rem; }
.flow-bar, .flow-labels { display: grid; grid-template-columns: 55fr 45fr; gap: .5rem; }
.flow-bar { height: .48rem; overflow: hidden; margin-block: .85rem .65rem; }
.flow-bar span { position: relative; transform-origin: left center; }
.flow-bar span:first-child { background: var(--accent); }
.flow-bar span:last-child { background: var(--accent-soft); }
.flow-labels > div { display: flex; flex-wrap: wrap; align-items: baseline; gap: .1rem .5rem; }
.flow-labels strong { color: #e7efda; font: 700 clamp(1.2rem, 2.1vw, 1.65rem)/1.3 var(--mono); }
.flow-labels > div:first-child strong { color: var(--accent); }
.note { margin-top: 1.05rem; }
.note p { margin: 0 0 .4rem; }

.mint-strip { margin-bottom: .85rem; display: grid; grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, 1fr)) auto; align-items: center; gap: .65rem 1rem; }
.mint-strip h3 { margin-bottom: .15rem; }
.mint-strip > div > span { display: block; color: var(--muted); font-size: .85rem; }
.mint-strip strong { display: block; font: 700 1.12rem/1.45 var(--mono); }
.facts { margin: 0; }
.facts > div { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: .55rem; padding: .57rem 0; }
.facts > div:first-child { padding-top: 0; }
.facts > div:last-child { padding-bottom: 0; }
.facts > div + div, .receipts article + article { border-top: 1px solid var(--border); }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.receipts article + article { padding-top: .85rem; margin-top: .85rem; }

.groups, .external { padding: 0; margin: 0; list-style: none; }
.groups { display: flex; flex-wrap: wrap; gap: .5rem; }
.groups button { display: flex; align-items: baseline; gap: .45rem; color: #f3f6ee; border: 1px solid var(--border); border-radius: .4rem; padding: .44rem .65rem; background: #0b100a; }
.groups button:hover { border-color: var(--accent); }
.groups span { color: var(--accent); font-size: .83rem; }
#qq-copy, #qq-status { margin-top: .65rem; }
.external li + li { margin-top: .5rem; }
.footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .45rem 1rem; padding-block: 1.15rem 1.5rem; color: var(--muted); font-size: .93rem; }
.footer p { margin: 0; }

@media (max-width: 50rem) {
  .wrap { width: calc(100% - 2rem); }
  .header-row { display: grid; grid-template-columns: 1fr auto; padding-block: .65rem; }
  .header-link { grid-column: 2; grid-row: 1; }
  nav { grid-column: 1 / -1; }
  .hero-grid, .metrics, .evidence-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-grid { padding-block: 2.6rem 1.6rem; }
  h1 span { display: inline; }
  .desktop-break { display: none; }
  .robot-stage { height: clamp(14rem, 57vw, 24rem); }
  .contract-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contract-controls .address { grid-column: 1 / -1; min-height: 4.65rem; }
  .mint-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .mint-strip > div:first-child, .mint-strip > a { grid-column: 1 / -1; }
}
@media (max-width: 23rem) {
  h1 { font-size: clamp(2.6rem, 12vw, 3.4rem); }
  .header-link { padding-inline: .7rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .hero-visual { animation: stage-in .75s ease-out both; }
  [data-motion-ready] .orbit-trace { animation: orbit-turn 16s linear infinite; }
  [data-motion-ready] .scan-light { animation: stage-scan 9s .45s ease-in-out infinite; }
  .flow.is-in-view .flow-bar span { animation: fill-track .9s cubic-bezier(.2, .7, .25, 1) both; }
  .flow.is-in-view .flow-bar span::after {
    position: absolute;
    inset: 0;
    content: "";
    background: linear-gradient(95deg, transparent 28%, #fff9 50%, transparent 72%);
    animation: trace-track 1.25s .5s ease-out both;
  }
  [data-motion-ready] .is-offscreen .orbit-trace,
  [data-motion-ready] .is-offscreen .scan-light { animation-play-state: paused; }
  [data-motion-paused] .hero-visual, [data-motion-ready][data-motion-paused] .orbit-trace,
  [data-motion-ready][data-motion-paused] .scan-light, [data-motion-paused] .flow.is-in-view .flow-bar span,
  [data-motion-paused] .flow.is-in-view .flow-bar span::after { animation: none; }
  [data-motion-paused] .robot-stage { transform: none; transition: none; }
}

@keyframes stage-in {
  from { opacity: .75; transform: translateY(9px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes orbit-turn { to { transform: rotate(1turn); } }
@keyframes stage-scan {
  0%, 100% { opacity: 0; transform: translateY(0); }
  4% { opacity: .82; }
  20% { opacity: .6; }
  24%, 99% { opacity: 0; transform: translateY(clamp(12.5rem, 25vw, 22rem)); }
}
@keyframes fill-track {
  from { transform: scaleX(.08); }
  to { transform: scaleX(1); }
}
@keyframes trace-track {
  from { opacity: .75; transform: translateX(-100%); }
  to { opacity: 0; transform: translateX(100%); }
}

@media (prefers-reduced-motion: reduce) {
  .button, .robot-stage { transition: none; }
  .robot-stage { transform: none; }
}