:root {
    --bg: #0b0f19; --bg-2: #0f1420; --panel: #151b2a; --panel-2: #1e2740; --border: #2a3350; --border-2: #394571;
    --text: #e6ebff; --muted: #8a93b8; --dim: #5d6690; --accent: #5eead4; --accent-2: #a78bfa; --warn: #fbbf24; --good: #34d399;
    --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
  a { color: inherit; text-decoration: none; }
  .mono { font-family: var(--mono); }
  .wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

  /* the lab's floor: a faint engineering grid, brighter near the top */
  body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
      radial-gradient(1200px 600px at 70% -10%, rgba(167,139,250,.16), transparent 60%),
      radial-gradient(900px 500px at 10% 0%, rgba(94,234,212,.10), transparent 60%),
      linear-gradient(rgba(42,51,80,.35) 1px, transparent 1px) 0 0 / 32px 32px,
      linear-gradient(90deg, rgba(42,51,80,.35) 1px, transparent 1px) 0 0 / 32px 32px;
    mask-image: linear-gradient(#000 0, rgba(0,0,0,.35) 70%, rgba(0,0,0,.2) 100%); }

  nav { display: flex; align-items: center; gap: 14px; padding: 18px 0; }
  .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .01em; font-size: 16px; }
  .dot { width: 11px; height: 11px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 0 12px rgba(94,234,212,.8); animation: breathe 3.2s ease-in-out infinite; }
  @keyframes breathe { 50% { box-shadow: 0 0 4px rgba(94,234,212,.35); } }
  nav .spacer { flex: 1; }
  nav a.l { color: var(--muted); font-size: 13.5px; white-space: nowrap; padding: 10px 2px; }
  .brand, .pill { white-space: nowrap; }
  .brand .by { color: var(--muted); font-weight: 500; font-size: 13px; margin-left: 2px; }
  nav a.l:hover { color: var(--text); }
  .pill { font: 600 10.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 5px 9px; border-radius: 99px; border: 1px solid var(--border-2); color: var(--muted); }
  .pill.alpha { color: var(--warn); border-color: rgba(251,191,36,.5); }
  .pill.live { color: var(--accent); border-color: rgba(94,234,212,.5); }

  /* hero */
  .hero { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 44px; align-items: center; padding: 34px 0 30px; }
  .kicker { font: 600 11.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); display: flex; gap: 10px; align-items: center; }
  h1 { font-size: clamp(34px, 4.6vw, 54px); line-height: 1.04; letter-spacing: -.025em; margin: 16px 0 16px; font-weight: 750; }
  h1 .grad { background: linear-gradient(100deg, var(--accent) 0%, #c4b5fd 60%, var(--accent-2) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .lede { color: #b8c0e4; font-size: 17px; max-width: 520px; margin: 0 0 24px; }
  .ctas { display: flex; gap: 12px; flex-wrap: wrap; }
  .btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 10px; font-weight: 650; font-size: 14.5px; border: 1px solid var(--border-2); transition: transform .15s, box-shadow .2s, border-color .2s; }
  .btn:hover { transform: translateY(-1px); border-color: var(--accent); }
  .btn.primary { background: linear-gradient(135deg, var(--accent), #7dd3c8 45%, var(--accent-2)); color: #07131a; border: none; box-shadow: 0 8px 28px rgba(94,234,212,.22); }
  .btn.primary:hover { box-shadow: 0 10px 34px rgba(94,234,212,.38); }
  .facts { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 22px; color: var(--muted); font: 12px var(--mono); }
  .facts b { color: var(--text); font-weight: 600; }
  .facts .sep { color: var(--dim); }

  /* the bench-in-miniature */
  .rig { background: linear-gradient(180deg, rgba(21,27,42,.92), rgba(15,20,32,.92)); border: 1px solid var(--border); border-radius: 16px; box-shadow: 0 30px 80px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.04); overflow: hidden; }
  .rig-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; padding: 10px 14px; border-bottom: 1px solid var(--border); font: 11.5px var(--mono); color: var(--muted); }
  .rig-bar .led { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 8px var(--good); }
  .rig-bar #rigTitle { white-space: nowrap; }
  .rig-bar .meter { margin-left: auto; color: var(--accent); font-size: 10.5px; white-space: nowrap; }
  .rig-body { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
  .rig-flow { padding: 14px 10px 10px; border-right: 1px solid var(--border); }
  .rig-side { padding: 12px 14px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
  .mini { background: rgba(30,39,64,.55); border: 1px solid var(--border); border-radius: 9px; padding: 8px 10px; }
  .mini .t { font: 600 9.5px var(--mono); letter-spacing: .09em; text-transform: uppercase; color: var(--muted); margin-bottom: 5px; }
  .mini pre { margin: 0; font: 10.5px/1.45 var(--mono); color: var(--text); white-space: pre-wrap; word-break: break-word; max-height: 108px; overflow: hidden; }
  .mini pre .k { color: var(--accent-2); }
  .mini pre .s { color: var(--accent); }
  .wf { display: grid; gap: 4px; }
  .wf div { display: grid; grid-template-columns: 74px 1fr; gap: 6px; align-items: center; font: 9.5px var(--mono); color: var(--muted); }
  .wf span.bar { height: 6px; border-radius: 3px; background: rgba(42,51,80,.6); position: relative; overflow: hidden; }
  .wf span.bar i { position: absolute; top: 0; bottom: 0; border-radius: 3px; background: var(--accent-2); transition: width .5s ease; }
  .wf span.bar i.gate { background: var(--warn); }

  /* flows (shared by the hero and the cards) */
  svg.flow { width: 100%; height: auto; display: block; overflow: visible; }
  svg.flow .e path { fill: none; stroke: var(--border-2); stroke-width: 1.6; transition: stroke .3s, opacity .4s; }
  /* Branch names show on the path a run takes; untaken branches stay unlabeled, so labels never pile up. */
  svg.flow .e text { fill: var(--dim); font: 10px var(--mono); opacity: 0; transition: fill .3s, opacity .4s; }
  svg.flow .e.taken path { stroke: var(--accent); stroke-width: 2.4; stroke-dasharray: 7 6; animation: flow .7s linear infinite; }
  svg.flow .e.taken text { fill: var(--accent); opacity: 1; }
  svg.flow .e.dim { opacity: .35; } svg.flow .e.dim path { stroke-dasharray: 3 4; }
  @keyframes flow { to { stroke-dashoffset: -13; } }
  svg.flow .n rect { fill: #1b2340; stroke: var(--border-2); stroke-width: 1.2; transition: all .3s; }
  svg.flow .n .nl { fill: var(--muted); font: 600 13px var(--mono); transition: fill .3s; }
  svg.flow .n .nm { fill: var(--accent); font: 11px var(--mono); }
  svg.flow .n.on rect { fill: #5eead4; stroke: #5eead4; filter: drop-shadow(0 0 10px rgba(94,234,212,.75)); }
  svg.flow .n.on .nl, svg.flow .n.on .nm { fill: #06201c; }
  svg.flow .n.done rect { fill: #2a2550; stroke: var(--accent-2); }
  svg.flow .n.done .nl { fill: var(--text); }
  svg.flow .n.kind-gate.on rect { fill: var(--warn); stroke: var(--warn); filter: drop-shadow(0 0 10px rgba(251,191,36,.7)); }
  svg.flow .n.dim { opacity: .38; } svg.flow .n.dim rect { stroke-dasharray: 4 3; }

  /* the exhibits */
  section { padding: 54px 0 10px; }
  .sh { display: flex; align-items: end; gap: 16px; margin-bottom: 20px; }
  .sh h2 { font-size: 26px; letter-spacing: -.015em; margin: 6px 0 0; }
  .sh p { color: var(--muted); margin: 0 0 3px auto; max-width: 440px; font-size: 14px; text-align: right; }
  .cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
  .card { position: relative; display: flex; flex-direction: column; background: linear-gradient(180deg, rgba(23,29,44,.95), rgba(15,20,32,.95)); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .2s; }
  a.card:hover { transform: translateY(-4px); border-color: rgba(94,234,212,.55); box-shadow: 0 22px 60px rgba(0,0,0,.45), 0 0 0 1px rgba(94,234,212,.15); }
  .card .stage { height: 270px; padding: 12px 10px 4px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
    background: radial-gradient(420px 200px at 50% 0%, rgba(167,139,250,.12), transparent 70%), linear-gradient(rgba(42,51,80,.3) 1px, transparent 1px) 0 0 / 20px 20px, linear-gradient(90deg, rgba(42,51,80,.3) 1px, transparent 1px) 0 0 / 20px 20px; }
  .card .stage svg.flow { max-height: 254px; width: auto; max-width: 100%; }
  .card .body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
  .card .top { display: flex; align-items: center; gap: 8px; }
  .card .num { font: 600 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-2); }
  .card .top .pill { margin-left: auto; }
  .card h3 { margin: 0; font-size: 20px; letter-spacing: -.01em; }
  .card p { margin: 0; color: #aeb6da; font-size: 14px; }
  .chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 2px 0 14px; }
  .chip { font: 11px var(--mono); color: var(--muted); border: 1px solid var(--border); border-radius: 6px; padding: 2px 7px; background: rgba(30,39,64,.5); }
  .card .go { margin-top: auto; padding-top: 8px; display: flex; align-items: center; gap: 8px; font-weight: 650; color: var(--accent); font-size: 14px; }
  .card .start { margin-top: auto; margin-bottom: 2px; align-self: flex-start; display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; border-radius: 9px; font-weight: 700; font-size: 14px;
    color: #07131a; background: linear-gradient(135deg, var(--accent), #7dd3c8 45%, var(--accent-2)); box-shadow: 0 6px 20px rgba(94,234,212,.18); }
  .card .start .arr { transition: transform .2s; }
  a.card:hover .start .arr { transform: translateX(4px); }
  .card .muted-go { margin-top: auto; color: var(--muted); font-weight: 600; font-size: 14px; }
  a.inline { color: var(--accent); white-space: nowrap; }
  a.inline:hover { text-decoration: underline; }

  /* the lab page */
  .steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 6px 0 30px; }
  .stepc { display: flex; gap: 12px; align-items: flex-start; background: rgba(21,27,42,.8); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; }
  .stepc .k { flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font: 700 13px var(--mono); color: #07131a; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
  .stepc b { display: block; font-size: 15px; margin-bottom: 1px; }
  .stepc span { color: #aeb6da; font-size: 13.5px; }
  .stations { display: grid; gap: 18px; }
  .station { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); background: linear-gradient(180deg, rgba(23,29,44,.95), rgba(15,20,32,.95)); border: 1px solid var(--border); border-radius: 18px; overflow: hidden; transition: border-color .2s, box-shadow .2s; }
  .station:not(.soon):hover { border-color: rgba(94,234,212,.45); box-shadow: 0 22px 60px rgba(0,0,0,.4); }
  .station .stage { min-height: 360px; padding: 14px; border-right: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
    background: radial-gradient(420px 220px at 50% 0%, rgba(167,139,250,.12), transparent 70%), linear-gradient(rgba(42,51,80,.3) 1px, transparent 1px) 0 0 / 20px 20px, linear-gradient(90deg, rgba(42,51,80,.3) 1px, transparent 1px) 0 0 / 20px 20px; }
  .station .stage svg.flow { max-height: 350px; width: auto; max-width: 100%; }
  .station .info { padding: 22px 24px; display: flex; flex-direction: column; gap: 10px; }
  .station .top { display: flex; align-items: center; gap: 8px; }
  .station .num { font: 600 11.5px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-2); }
  .station h3 { margin: 0; font-size: 24px; letter-spacing: -.015em; }
  .station p { margin: 0; color: #aeb6da; }
  .youll { background: rgba(94,234,212,.07); border: 1px solid rgba(94,234,212,.25); border-radius: 10px; padding: 10px 12px; font-size: 14.5px; }
  .youll b, .watch b { font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-right: 6px; }
  .watch { font-size: 14px; color: #aeb6da; }
  .watch ul { margin: 6px 0 0; padding-left: 18px; } .watch li { margin: 2px 0; }
  .station .act { margin-top: auto; padding-top: 6px; }
  .btn.disabled { color: var(--muted); border-style: dashed; cursor: default; }
  .btn.disabled:hover { transform: none; border-color: var(--border-2); }
  /* Arriving from a front-door card: a glow on its own layer that fades by itself, so the
     card's hover style never fights it. */
  .station { position: relative; }
  .station.arrived::after { content: ""; position: absolute; inset: 0; border-radius: 18px; z-index: 2; pointer-events: none;
    box-shadow: inset 0 0 0 2px var(--accent), inset 0 0 50px rgba(94,234,212,.18); animation: arrive 2.4s ease-out forwards; }
  @keyframes arrive { 0%, 55% { opacity: 1; } 100% { opacity: 0; } }
  .station.soon { opacity: .6; } .station.soon .stage { filter: grayscale(.7); }
  .crumb { color: var(--muted); font-size: 13.5px; } .crumb:hover { color: var(--text); }
  .card .go .arr { transition: transform .2s; }
  a.card:hover .go .arr { transform: translateX(4px); }
  .card.soon { opacity: .62; }
  .card.soon .stage { filter: grayscale(.7); }
  .card.soon .go { color: var(--muted); }
  .silhouette rect { fill: #1b2340; stroke: var(--border-2); stroke-dasharray: 4 3; }
  .silhouette path { fill: none; stroke: var(--border-2); stroke-dasharray: 3 4; stroke-width: 1.5; }

  /* what you'll see */
  .see { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
  .tile { background: rgba(21,27,42,.8); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
  .tile .ic { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; font: 700 15px var(--mono); color: #07131a; background: linear-gradient(135deg, var(--accent), var(--accent-2)); margin-bottom: 10px; }
  .tile h4 { margin: 0 0 4px; font-size: 15.5px; }
  .tile p { margin: 0; color: #aeb6da; font-size: 13.5px; }
  .tile .eng { margin-top: 8px; font: 11px var(--mono); color: var(--dim); }

  .how { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: start; }
  .how p { color: #b8c0e4; margin: 0 0 12px; }
  .how code { font: 12.5px var(--mono); color: var(--accent); background: #111726; border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px; }
  .stack { display: grid; gap: 8px; }
  .stack div { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border: 1px solid var(--border); border-radius: 11px; background: rgba(21,27,42,.8); font-size: 14px; }
  .stack div b { font: 600 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-2); width: 118px; flex: none; }

  footer a, a.inline { padding: 8px 0; }
  footer { margin-top: 64px; padding: 22px 0 40px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; display: flex; gap: 16px; flex-wrap: wrap; }
  footer a:hover { color: var(--text); }

  @media (max-width: 980px) {
    .station { grid-template-columns: 1fr; } .station .stage { border-right: none; border-bottom: 1px solid var(--border); min-height: 240px; }
    .steps { grid-template-columns: 1fr; }
    .hero { grid-template-columns: 1fr; gap: 28px; }
    .cards { grid-template-columns: 1fr; }
    .see { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .how { grid-template-columns: 1fr; }
    .sh { flex-direction: column; align-items: start; } .sh p { margin: 0; text-align: left; }
  }
  @media (max-width: 560px) {
    .wrap { padding: 0 16px; }
    nav { gap: 10px; } nav .pill { display: none; } nav a.l.ext { display: none; }
    .rig-bar .meter { white-space: normal; margin-left: 0; flex-basis: 100%; }
    .station .info { order: -1; } .station .stage { min-height: 220px; } .station .stage svg.flow { max-height: 210px; }
    .rig-body { grid-template-columns: 1fr; } .rig-flow { border-right: none; border-bottom: 1px solid var(--border); }
    .see { grid-template-columns: 1fr; }
    nav a.l.hide-s { display: none; }
  }
  @media (prefers-reduced-motion: reduce) { .dot { animation: none; } svg.flow .e.taken path { animation: none; } }

  /* product vs example */
  .kind { font: 600 10px var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 3px 7px; border-radius: 6px; margin-left: 6px; }
  .kind-product { color: var(--good); background: rgba(52,211,153,.1); border: 1px solid rgba(52,211,153,.35); }
  .kind-example { color: var(--accent-2); background: rgba(167,139,250,.1); border: 1px solid rgba(167,139,250,.35); }
  .card .top .kind + .pill, .station .top .kind + .pill { margin-left: auto; }
  .station .links { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13.5px; }
  .station .links a { color: var(--accent); padding: 6px 0; } .station .links a:hover { text-decoration: underline; }