:root {
  color-scheme: dark;
  --ink: #f1efe8;
  --muted: #8e918b;
  --line: #292c2b;
  --panel: #111413;
  --acid: #c7ff3d;
  --orange: #ff6945;
  --cyan: #62d9d1;
}

* { box-sizing: border-box; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
body {
  margin: 0;
  background: #090b0a;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, "PingFang SC", sans-serif;
  min-height: 100vh;
}
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: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}
.topbar, footer { display: flex; align-items: center; padding: 20px 4vw; border-bottom: 1px solid var(--line); position: relative; }
.brand { color: var(--ink); text-decoration: none; font: 800 18px/1 ui-monospace, monospace; letter-spacing: .08em; }
.brand span { color: var(--acid); }
.runtime { margin: auto; color: var(--muted); font: 11px ui-monospace, monospace; letter-spacing: .14em; }
.runtime i { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 12px var(--acid); margin-right: 8px; }
.source { color: var(--ink); text-decoration: none; font-size: 12px; }
main { width: min(1180px, 92vw); margin: auto; }
.hero { padding: 72px 0 58px; display: grid; grid-template-columns: 1fr .62fr; gap: 60px; align-items: end; }
.eyebrow { grid-column: 1/-1; color: var(--acid); font: 11px ui-monospace, monospace; letter-spacing: .2em; margin: 0; }
h1 { margin: 0; font-size: clamp(48px, 7vw, 92px); line-height: .96; letter-spacing: -.055em; }
h1 em { color: transparent; font-style: normal; -webkit-text-stroke: 1.5px var(--acid); }
.lede { color: #b4b6b1; line-height: 1.8; max-width: 440px; margin: 0 0 7px; font-size: 15px; }
.workspace { border: 1px solid var(--line); background: rgba(13,16,15,.92); box-shadow: 0 30px 100px rgba(0,0,0,.4); }
.controls { display: flex; align-items: center; gap: 9px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.controls label, .samples-label { color: var(--muted); font: 10px ui-monospace, monospace; letter-spacing: .12em; }
.spacer { flex: 1; }
select, button { border: 1px solid #343837; background: #171a19; color: var(--ink); padding: 8px 11px; font: 12px ui-monospace, monospace; }
button { cursor: pointer; }
button:hover { border-color: var(--acid); color: var(--acid); }
.dropzone { margin: 18px; min-height: 225px; border: 1px dashed #444947; display: flex; flex-direction: column; align-items: center; justify-content: center; cursor: pointer; transition: .2s; }
.dropzone:hover, .dropzone.drag { border-color: var(--acid); background: rgba(199,255,61,.035); }
.dropzone:focus-visible, button:focus-visible, select:focus-visible, .trace-row:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; }
.drop-icon { color: var(--acid); font: 42px/1 ui-monospace, monospace; margin-bottom: 16px; }
.dropzone strong { font-size: 17px; }
.dropzone small { color: var(--muted); margin-top: 8px; }
.error { margin: 18px; padding: 14px; border-left: 3px solid var(--orange); background: rgba(255,105,69,.08); color: #ffb4a2; font: 13px/1.6 ui-monospace, monospace; }
.result { border-top: 1px solid var(--line); }
.overview { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.overview div { padding: 18px; border-right: 1px solid var(--line); }
.overview div:last-child { border: 0; }
.overview small { display: block; color: var(--muted); font: 10px ui-monospace, monospace; letter-spacing: .12em; margin-bottom: 8px; }
.overview strong { font: 700 20px ui-monospace, monospace; }
.panels { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 440px; }
.panel:first-child { border-right: 1px solid var(--line); }
.panel header { height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 17px; border-bottom: 1px solid var(--line); }
.panel h2 { font: 700 11px ui-monospace, monospace; letter-spacing: .15em; }
.panel header span { color: var(--muted); font: 10px ui-monospace, monospace; }
.hex { padding: 18px; font: 12px/2 ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; max-height: 480px; overflow: auto; }
.hex span { display: inline-block; padding: 0 3px; color: #9da29f; border-radius: 2px; }
.hex span:hover, .hex span.active { background: var(--acid); color: #0b0d0c; }
.summary { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px; border-bottom: 1px solid var(--line); }
.summary span { border: 1px solid #303432; padding: 6px 9px; color: #c3c6c1; font: 11px ui-monospace, monospace; }
.summary b { color: var(--cyan); font-weight: 500; }
.structure-label { padding: 10px 14px; border-bottom: 1px solid var(--line); color: var(--muted); font: 10px ui-monospace, monospace; letter-spacing: .14em; }
.schema-tree { max-height: 250px; overflow: auto; border-bottom: 1px solid var(--line); padding: 8px 0; }
.schema-node { font: 11px/1.5 ui-monospace, monospace; }
.schema-row { min-height: 30px; display: flex; gap: 8px; align-items: center; padding: 5px 12px 5px calc(12px + var(--depth) * 16px); border-left: 2px solid transparent; }
.schema-row:hover { background: rgba(98,217,209,.05); border-left-color: var(--cyan); }
.schema-kind { color: var(--cyan); }
.schema-constraints { margin-left: auto; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 4px; }
.schema-constraints span { color: var(--muted); border: 1px solid #2b302e; padding: 1px 4px; font-size: 9px; }
.trace { max-height: 410px; overflow: auto; }
.trace-row { display: grid; grid-template-columns: 68px 1fr auto; gap: 10px; padding: 11px 14px; border-bottom: 1px solid #202322; cursor: default; font: 11px ui-monospace, monospace; }
.trace-row:hover, .trace-row.active { background: rgba(199,255,61,.06); }
.offset { color: var(--acid); }
.path { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.value { color: var(--muted); max-width: 170px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
footer { margin-top: 80px; border-top: 1px solid var(--line); border-bottom: 0; justify-content: space-between; color: #666a67; font: 10px ui-monospace, monospace; letter-spacing: .15em; }
@media (max-width: 760px) {
  .runtime { display: none; }
  .source { margin-left: auto; }
  .hero { grid-template-columns: 1fr; gap: 26px; padding-top: 48px; }
  .hero .eyebrow { grid-column: auto; }
  .controls { flex-wrap: wrap; }
  .samples-label { display: none; }
  .overview { grid-template-columns: 1fr 1fr; }
  .overview div:nth-child(2) { border-right: 0; }
  .panels { grid-template-columns: 1fr; }
  .panel:first-child { border-right: 0; border-bottom: 1px solid var(--line); }
}