/* EditVolt 3D hero -- pairs with hero-3d.js. Loaded after /styles.css; uses its tokens. */
:root{
    /* editor window (dark) -- the only dark surface on the page */
    --ink:#0b0e14; --pane:#121722; --pane2:#0f141d; --line:#222b3b; --line2:#2c3648;
    --cream:#f6f3ec; --cream2:#d9d4c8; --muted:#8b93a7; --muted2:#5b6478;
    --green:#3ddc97; --green-soft:rgba(61,220,151,.14);
    --red:#ff6b6b; --red-soft:rgba(255,107,107,.14);
    /* page tokens map onto styles.css */
    --page:var(--bg); --page-soft:var(--bg-soft); --panel2:var(--panel-2); --page-ink:var(--text); --page-muted:var(--text-dim); --page-line:var(--border); --page-line2:#cfcabb;
    --stage:var(--bg);
    --site-blue:var(--blue); --site-green:var(--green); --site-green-ink:var(--green-ink); --site-amber:var(--amber);
    --display:inherit; --body:inherit;
    --nav-h:64px;
  }
  #hero .beatbtn{font-family:var(--mono);font-size:11px;line-height:1.4}

  /* ---------- Hero shell ---------- */
  #hero{position:relative;height:360vh;background:var(--stage);color:var(--page-ink)}
  #stage{position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));overflow:hidden;background:
      radial-gradient(900px 500px at 50% -10%, rgba(217,119,87,.10), transparent 70%),
      radial-gradient(900px 600px at 72% 50%, rgba(58,112,194,.07), transparent 60%),
      var(--stage)}
  #gl{position:absolute;inset:0;width:100%;height:100%;display:block}
  #labels{position:absolute;inset:0;pointer-events:none;z-index:2}
  .lbl{position:absolute;transform:translate(-50%,-50%);font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--page-ink);opacity:0;pointer-events:auto;white-space:nowrap;transition:opacity .25s}
  .lbl .tag{display:inline-block;margin-left:.5em;padding:1px 6px;border:1px solid var(--page-line2);border-radius:999px;color:var(--page-muted);font-size:10px;opacity:0;transform:translateY(2px);transition:opacity .2s,transform .2s}
  .lbl:hover .tag{opacity:1;transform:none}
  .lbl.local .tag{border-color:rgba(31,158,117,.5);color:#1f9e75}
  .lbl.dev{color:#1f9e75;font-size:10px;letter-spacing:.12em;text-transform:uppercase}

  .topbar{position:absolute;left:0;right:0;top:0;display:flex;align-items:center;justify-content:space-between;padding:22px clamp(20px,4vw,56px);z-index:5;font-size:14px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.01em}
  .brand svg{width:20px;height:20px}
  .topbar .note{font-family:var(--mono);font-size:11px;color:var(--page-muted);letter-spacing:.06em;text-transform:uppercase}

  .copy{position:absolute;left:clamp(20px,4vw,56px);top:50%;transform:translateY(-50%);width:min(440px,40vw);z-index:4}
  .eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--volt-ink);margin:0 0 18px;display:flex;align-items:center;gap:10px}
  .eyebrow .beats{display:inline-flex;gap:4px}
  .eyebrow .beats i{display:block;width:18px;height:2px;background:var(--page-line2);border-radius:2px;transition:background .3s}
  .eyebrow .beats i.on{background:var(--volt)}
  #hero h1{font-family:var(--display);font-weight:800;font-size:clamp(34px,4.2vw,58px);line-height:1.06;letter-spacing:-.03em;margin:0 0 18px;text-wrap:balance}
  #hero h1 em{font-style:normal;color:var(--volt-soft)}
  #hero h1 .thought{position:relative;display:inline-block;white-space:nowrap;z-index:0}
  #hero h1 .thought::after{content:"";position:absolute;left:-2%;right:-2%;bottom:.04em;height:.22em;background:linear-gradient(90deg,var(--volt),var(--site-amber));border-radius:2px;opacity:.55;transform:scaleX(var(--sx,0));transform-origin:left;z-index:-1}
  .sub{position:relative;height:4.4em;margin:0 0 22px;font-size:clamp(16px,1.35vw,19px);color:var(--page-muted);line-height:1.45}
  .sub span{position:absolute;inset:0;opacity:0;transition:opacity .35s;max-width:36ch}
  .sub span.on{opacity:1}
  .sub b{color:var(--page-ink);font-weight:600}
  .cta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
  .btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:10px;border:1px solid transparent;font-weight:600;font-size:14px;cursor:pointer;text-decoration:none;transition:transform .15s,background .2s,border-color .2s}
  .btn.primary{background:var(--volt-ink);color:#fff;box-shadow:0 8px 24px rgba(217,119,87,.25)}
  .btn.primary:hover{background:var(--volt-ink-hover);transform:translateY(-2px)}
  .btn.ghost{background:var(--panel);color:var(--page-ink);border-color:var(--page-line)}
  .btn.ghost:hover{border-color:var(--page-muted);transform:translateY(-2px)}
  .btn:focus-visible,.beatbtn:focus-visible{outline:2px solid var(--site-blue);outline-offset:2px}
  .beatnav{display:flex;gap:6px;align-items:center}
  .beatbtn{background:transparent;border:1px solid var(--page-line);color:var(--page-muted);border-radius:999px;padding:5px 11px;font-family:var(--mono);font-size:11px;letter-spacing:.04em;cursor:pointer;transition:color .2s,border-color .2s}
  .beatbtn.on,.beatbtn:hover{color:var(--volt-ink);border-color:rgba(217,119,87,.35);background:var(--volt-dim)}
  .hint{margin-top:10px;font-family:var(--mono);font-size:11px;color:var(--page-muted);letter-spacing:.04em}

  /* ---------- 3D editor stack ---------- */
  .scene{position:absolute;top:0;bottom:0;left:34%;right:0;perspective:1600px;perspective-origin:50% 50%;z-index:3;pointer-events:none}
  #stack{position:absolute;left:45%;top:50%;width:min(520px,44vw);height:360px;transform-style:preserve-3d;margin-left:calc(min(520px,44vw) * -.5);margin-top:-180px;transition:transform .08s linear}
  .pane{position:absolute;left:0;top:0;width:100%;background:var(--pane);border:1px solid var(--line);border-radius:12px;box-shadow:0 30px 70px rgba(21,24,31,.28),0 2px 6px rgba(21,24,31,.12);transform-style:preserve-3d;font-family:var(--mono);font-size:11.5px;line-height:1.6em;color:var(--cream2);overflow:hidden;pointer-events:auto}
  .pane.editor{height:360px;z-index:3}
  .pane.filebg{height:360px;opacity:0;z-index:1;background:var(--pane2);transform:translate3d(0,0,-1px)}
  .pane.filebg pre{margin:0;padding:12px 16px;color:var(--muted2);font:inherit;white-space:pre}
  .tabbar{display:flex;align-items:center;gap:2px;padding:8px 10px 0;border-bottom:1px solid var(--line);background:var(--pane2)}
  .tab{padding:6px 12px;border-radius:8px 8px 0 0;color:var(--muted);font-size:11.5px}
  .tab.active{background:var(--pane);color:var(--cream);border:1px solid var(--line);border-bottom-color:var(--pane);margin-bottom:-1px}
  .tabbar .spacer{flex:1}
  .tabkey{font-size:10.5px;color:#fff;background:var(--volt);padding:3px 8px;border-radius:6px;margin-bottom:6px;font-weight:500;opacity:0;letter-spacing:.06em;transform-origin:center}
  .passed{white-space:nowrap;font-size:10.5px;color:var(--green);margin-bottom:6px;margin-right:6px;opacity:0}
  .stuck{white-space:nowrap;font-size:10.5px;color:var(--red);margin-bottom:6px;margin-right:6px;letter-spacing:.04em;font-variant-numeric:tabular-nums}
  .stuck b{font-weight:600}
  .evbadge{white-space:nowrap;font-size:10.5px;color:#fff;background:var(--volt-ink);padding:3px 8px;border-radius:6px;margin-bottom:6px;margin-right:6px;font-weight:600;opacity:0;transform:translateY(-6px)}
  .hesline .typed{color:var(--cream2)}
  .hesline.active .caret{opacity:1}
  .clutter{position:absolute;inset:0;pointer-events:none;z-index:2}
  .win{position:absolute;width:300px;background:var(--panel);border:1px solid var(--page-line);border-radius:10px;box-shadow:0 18px 40px rgba(41,38,27,.14);font-family:var(--body);color:var(--page-ink);opacity:0;transform-origin:center}
  .win .bar{display:flex;align-items:center;gap:5px;padding:7px 10px;border-bottom:1px solid var(--page-line);background:var(--panel2);border-radius:10px 10px 0 0;font-size:10.5px;color:var(--page-muted);white-space:nowrap;overflow:hidden}
  .win .bar i{width:8px;height:8px;border-radius:50%;background:var(--page-line2);flex:none}
  .win .bar span{overflow:hidden;text-overflow:ellipsis;margin-left:4px}
  .win .body{padding:9px 12px;font-size:11.5px;line-height:1.4;color:var(--page-muted)}
  .win .body b{color:var(--page-ink);font-weight:600}
  #win1{left:6%;top:9%}
  #win2{left:1%;top:60%}
  #win3{left:18%;top:82%;width:240px}
  .bubble{position:absolute;z-index:4;background:var(--panel);border:1px solid var(--page-line);color:var(--page-ink);font-family:var(--body);font-size:12.5px;padding:7px 12px;border-radius:14px;box-shadow:0 8px 24px rgba(41,38,27,.10);opacity:0;white-space:nowrap;pointer-events:none}
  .bubble::before,.bubble::after{content:"";position:absolute;background:var(--panel);border:1px solid var(--page-line);border-radius:50%}
  .bubble::before{width:10px;height:10px;left:-10px;bottom:-6px}
  .bubble::after{width:5px;height:5px;left:-20px;bottom:-14px}
  #bub1{left:24%;top:23%}
  #bub2{left:40%;top:16%}
  #bub3{left:56%;top:22%}
  .flash{position:absolute;left:0;top:0;right:0;bottom:0;z-index:5;pointer-events:none;background:radial-gradient(600px 400px at 60% 50%, rgba(217,119,87,.35), transparent 65%);opacity:0}
  .code{padding:12px 0 10px}
  .line{display:flex;height:1.6em;overflow:hidden;white-space:pre;position:relative;padding:0 14px 0 0}
  .line .ln{width:38px;flex:none;text-align:right;padding-right:12px;color:var(--muted2);user-select:none}
  .line .gut{width:14px;flex:none;color:transparent}
  .line.typedline{height:0}
  .kw{color:#c792ea}.fn{color:#82aaff}.str{color:#c3e88d}.pr{color:#ffcb6b}.cm{color:var(--muted2)}
  .sq{text-decoration:underline wavy var(--red);text-decoration-skip-ink:none;text-underline-offset:3px;transition:text-decoration-color .3s}
  .sq.off{text-decoration-color:transparent}
  .typed{color:var(--cream)}
  .ghost{color:var(--muted);font-style:italic}
  .accepted .ghost{color:var(--cream);font-style:normal}
  .caret{display:inline-block;width:1.5px;height:1.1em;background:var(--volt);vertical-align:-.2em;margin-left:1px;animation:blink 1s steps(1) infinite;opacity:0}
  .active .caret{opacity:1}
  .accepted .caret{display:none}
  @keyframes blink{50%{opacity:0}}
  .line.del{background:var(--red-soft)}
  .line.del .gut{color:var(--red)}
  .line.del .src{text-decoration:line-through;text-decoration-color:rgba(255,107,107,.7)}
  .line.add{background:var(--green-soft)}
  .line.add .gut{color:var(--green)}
  .term{border-top:1px solid var(--line);background:var(--pane2);padding:10px 14px;height:118px;white-space:pre;color:var(--cream2);font-size:12px;line-height:1.6em}
  .term .ok{color:var(--green)}.term .bad{color:var(--red)}.term .dim{color:var(--muted)}.term .pr{color:var(--cream)}

  .proof{position:absolute;left:45%;top:calc(50% + 228px);transform:translateX(-50%);display:flex;gap:8px;white-space:nowrap;z-index:3;pointer-events:none}
  .proof span{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--page-ink);background:var(--panel);border:1px solid var(--page-line);border-radius:999px;padding:6px 12px;box-shadow:0 4px 14px rgba(41,38,27,.08);opacity:0}
  .proof i{font-style:normal;color:var(--volt-ink);font-size:11px}
  .pane.agent{left:auto;right:-36%;width:38%;height:430px;top:-35px;z-index:4;transform-origin:left center;opacity:0;transform:rotateY(70deg) translateX(-20px)}
  .agent .hd{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-bottom:1px solid var(--line);background:var(--pane2);font-size:11px;color:var(--cream)}
  .agent .hd .mode{display:inline-flex;align-items:center;gap:6px;font-weight:500}
  .agent .hd .mode i{width:7px;height:7px;border-radius:50%;background:var(--volt);box-shadow:0 0 10px var(--volt)}
  .agent .chip{font-size:9.5px;color:var(--muted);border:1px solid var(--line2);padding:2px 7px;border-radius:999px;white-space:nowrap}
  .agent .prompt{padding:9px 12px;color:var(--cream2);font-family:var(--body);font-size:12px;line-height:1.4;border-bottom:1px solid var(--line)}
  .agent .prompt .at{color:#7fa9ee;font-family:var(--mono);font-size:11.5px}
  .agent .steps{padding:8px 12px;display:flex;flex-direction:column;gap:6px}
  .agent .step{display:flex;gap:9px;align-items:center;font-size:11px;white-space:nowrap;color:var(--muted2)}
  .agent .step i{width:14px;height:14px;border:1px solid var(--line2);border-radius:50%;flex:none;display:grid;place-items:center;font-size:9px;color:var(--ink)}
  .agent .step.run{color:var(--cream2)}.agent .step.run i{border-color:var(--volt);box-shadow:0 0 0 3px rgba(217,119,87,.25)}
  .agent .step.done{color:var(--cream2)}.agent .step.done i{background:var(--green);border-color:var(--green)}
  .agent .step.done i::before{content:"\2713"}
  .agent .ctx{display:flex;flex-wrap:wrap;gap:4px;padding:8px 12px;border-bottom:1px solid var(--line);font-size:9.5px;color:var(--cream2)}
  .agent .ctx span{border:1px solid var(--line2);border-radius:5px;padding:1px 6px;white-space:nowrap}
  .agent .ctx .k{border:0;padding-left:0;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:9px}
  .agent .ctx .tok{border-color:rgba(217,119,87,.5);color:#f0a684}
  .agent .gpu{display:flex;align-items:center;gap:8px;padding:0 12px;font-size:9.5px;color:var(--muted);letter-spacing:.06em}
  .agent .gpu i{flex:1;height:4px;border-radius:2px;background:var(--line);overflow:hidden}
  .agent .gpu b{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--volt),var(--site-amber));border-radius:2px}
  .agent .ft{position:absolute;left:0;right:0;bottom:0;display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line);background:var(--pane2)}
  .agent .ft span{font-size:10.5px;padding:6px 9px;white-space:nowrap;border-radius:7px;border:1px solid var(--line2);color:var(--cream2)}
  .agent .ft span.primary{background:var(--cream);color:var(--ink);border-color:var(--cream)}


  @media (max-width:900px){
    .copy{width:min(440px,88vw);top:auto;bottom:6vh;transform:none}
    .scene{left:0;top:9vh;bottom:auto;height:46vh}
    #stack{left:50%;width:min(520px,92vw);margin-left:calc(min(520px,92vw) * -.5);transform:scale(.72);margin-top:-130px}
    #hero h1{font-size:clamp(26px,7vw,34px)}
    .sub{height:2.9em;font-size:15px}
    .proof,.clutter,.bubble{display:none}
  }
  @media (prefers-reduced-motion:reduce){.caret{animation:none}}