:root{
    --bg:#0B0B0F;
    --bg-soft:#0F0F14;
    --surface:#131319;
    --surface-2:#1A1A22;
    --line:#26262F;
    --line-soft:#1E1E26;
    --text:#EDEDF2;
    --muted:#8A8A99;
    --muted-dim:#5F5F6E;
    --violet:#8B5CF6;
    --violet-lit:#A78BFA;
    --violet-wash:rgba(139,92,246,.10);
    --violet-edge:rgba(139,92,246,.30);
    --ok:#4ADE80;
    --orange:#F59E0B;
    --orange-lit:#FBBF24;
    --orange-edge:rgba(245,158,11,.42);
    --bug:#F87171;
    --display:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
    --wrap:1320px;
    --r:0px;
    --hatch:repeating-linear-gradient(45deg,var(--line) 0 1px,transparent 1px 8px);
    --hatch-violet:repeating-linear-gradient(45deg,var(--violet-edge) 0 1px,transparent 1px 7px);
  }
  html.party{filter:hue-rotate(var(--spin,0deg))}

  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;background:var(--bg);color:var(--text);font-family:var(--body);
    font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  :focus-visible{outline:2px solid var(--violet-lit);outline-offset:3px;border-radius:6px}

  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px;position:relative}

  .eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--violet-lit);margin:0 0 14px}
  h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.03em;line-height:1.08;margin:0}
  h2{font-size:clamp(28px,4vw,44px)}
  h3{font-size:19px;letter-spacing:-.02em;line-height:1.25}
  p{margin:0}
  .lede{color:var(--muted);font-size:17px;max-width:56ch}

  .btn{
    display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:0;
    font-size:14.5px;font-weight:500;font-family:var(--body);border:1px solid transparent;
    cursor:pointer;transition:background .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--violet);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.14) inset}
  .btn-primary:hover{background:var(--violet-lit)}
  .btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
  .btn-ghost:hover{border-color:#3A3A47;background:rgba(255,255,255,.045)}
  .btn-sm{padding:8px 15px;font-size:13.5px}

  /* ---------- nav ---------- */
  .topbar{position:sticky;top:0;z-index:50;background:rgba(11,11,15,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
  .nav{display:flex;align-items:center;gap:26px;height:62px}
  .brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;font-size:16.5px;letter-spacing:-.02em}
  .mark{display:grid;grid-template-columns:1fr 1fr;gap:2px;width:18px;height:18px}
  .mark i{background:#31313D;border-radius:2px;display:block}
  .mark i:nth-child(1){background:var(--violet)}
  .mark i:nth-child(4){background:var(--violet);opacity:.45;animation:blip 2.6s ease-in-out infinite}
  @keyframes blip{0%,70%,100%{opacity:.35}82%{opacity:1}}
  .nav-links{display:flex;gap:22px;margin-left:10px}
  .nav-links a{font-size:14px;color:var(--muted)}
  .nav-links a:hover{color:var(--text)}
  .nav-cta{margin-left:auto;display:flex;align-items:center;gap:12px}
  .tally{
    font-family:var(--mono);font-size:12px;color:var(--violet-lit);border:1px solid var(--violet-edge);
    background:var(--violet-wash);border-radius:0;padding:5px 10px;letter-spacing:.06em;white-space:nowrap;
  }
  .tally.pop{animation:pop .25s ease}
  @keyframes pop{50%{transform:scale(1.12)}}

  /* ---------- hero ---------- */
  .hero{position:relative;padding:76px 0 66px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;top:-320px;left:50%;transform:translateX(-50%);
    width:900px;height:640px;background:radial-gradient(ellipse at center,rgba(139,92,246,.16),transparent 66%);pointer-events:none;
  }
  .hero .wrap{position:relative}
  .hero-top{max-width:68ch}
  .hero h1{font-size:clamp(40px,6vw,64px);max-width:12ch}
  .hero h1 em{font-style:normal;color:var(--violet-lit)}
  .hero .lede{margin-top:20px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

  /* ---------- cabinet (shared game frame) ---------- */
  .cab{border:1px solid var(--line);border-radius:0;background:linear-gradient(180deg,var(--surface),var(--bg-soft));position:relative;display:flex;flex-direction:column}
  .cab.tool,.card{box-shadow:inset 0 1px 0 rgba(255,255,255,.045), 0 22px 40px -24px rgba(0,0,0,.95)}
  /* hatched slab drawn as two faces OUTSIDE the card: up the left, along the bottom.
     Kept out of the card's box so it never needs a negative z-index. */
  .card::before,.cab.tool::before{
    content:"";position:absolute;left:-15px;width:15px;top:15px;bottom:-15px;pointer-events:none;
    background-color:#0E0E14;background-image:var(--hatch-violet);
    border-left:1px solid var(--violet-edge);border-top:1px solid var(--violet-edge);
  }
  .card::after,.cab.tool::after{
    content:"";position:absolute;left:-15px;right:15px;bottom:-15px;height:15px;pointer-events:none;
    background-color:#0E0E14;background-image:var(--hatch-violet);
    border-bottom:1px solid var(--violet-edge);border-right:1px solid var(--violet-edge);
  }
  .cab-head{
    display:flex;align-items:center;gap:10px;padding:11px 15px;border-bottom:1px solid var(--line-soft);
    background-color:rgba(255,255,255,.015);background-image:var(--hatch);
  }
  .cab-head .name{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--text)}
  .cab-head .hint{font-family:var(--mono);font-size:11px;color:var(--muted-dim);margin-left:auto;white-space:nowrap}
  .cab-body{padding:18px;flex:1;display:flex;flex-direction:column;gap:14px}
  .hud{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted-dim);text-transform:uppercase}
  .hud b{color:var(--violet-lit);font-weight:500}
  .hud .right{margin-left:auto}
  .cab-foot{display:flex;align-items:center;gap:10px;padding:12px 18px;border-top:1px solid var(--line-soft)}
  .cab-foot p{font-size:12.5px;color:var(--muted-dim);margin-left:auto;text-align:right}

  /* bonk grid */
  .holes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
  .hole{
    position:relative;aspect-ratio:1/1;border:1px solid var(--line);border-radius:0;
    background:var(--surface-2);cursor:pointer;padding:0;overflow:hidden;
    display:grid;place-items:center;transition:border-color .15s ease;
  }
  .hole:hover{border-color:#3A3A47}
  .hole .byte{
    width:52%;height:52%;display:grid;grid-template-columns:1fr 1fr;gap:3px;
    transform:translateY(120%) scale(.7);transition:transform .16s cubic-bezier(.2,1.4,.5,1);
  }
  .hole .byte i{background:var(--violet);border-radius:2px;display:block}
  .hole .byte i:nth-child(2),.hole .byte i:nth-child(3){opacity:.55}
  .hole.up .byte{transform:none}
  .hole.bug .byte i{background:var(--bug)}
  .hole.whacked{border-color:var(--violet-edge);background:var(--violet-wash)}
  .hole.oops{border-color:rgba(248,113,113,.4);background:rgba(248,113,113,.08)}
  .hole .ping{
    position:absolute;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--violet-lit);
    opacity:0;pointer-events:none;
  }
  .hole .ping.go{animation:float .6s ease-out forwards}
  .hole.bug .ping{color:var(--bug)}
  @keyframes float{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(-26px)}}

  /* ---------- sections ---------- */
  section{border-top:1px solid var(--line-soft)}
  .pad{padding:80px 0}
  .head{max-width:60ch;margin-bottom:40px}
  .head p{margin-top:14px}
  .arcade{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}

  /* bit flip */
  .target{
    display:flex;align-items:center;justify-content:center;gap:12px;padding:14px;
    border:1px solid var(--line);border-radius:0;background:var(--surface-2);
  }
  .target .big{font-family:var(--display);font-size:32px;font-weight:600;letter-spacing:-.03em;line-height:1}
  .target .lab{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-dim)}
  .bits{display:grid;grid-template-columns:repeat(8,1fr);gap:5px}
  .bit{
    aspect-ratio:1/1;border:1px solid var(--line);border-radius:0;background:var(--surface-2);
    color:var(--muted-dim);font-family:var(--mono);font-size:13px;cursor:pointer;padding:0;
    transition:background .12s ease,color .12s ease,border-color .12s ease;
  }
  .bit[aria-pressed="true"]{background:var(--violet);border-color:var(--violet);color:#fff}
  .bit:hover{border-color:#3A3A47}
  .readout{font-family:var(--mono);font-size:12.5px;color:var(--muted);text-align:center}
  .readout.win{color:var(--ok)}

  /* snake */
  .screen{
    border:1px solid var(--line);border-radius:0;background:#0A0A0E;position:relative;
    aspect-ratio:1/1;overflow:hidden;display:grid;place-items:center;
  }
  .screen canvas{width:100%;height:100%;display:block;touch-action:none}
  .overlay{
    position:absolute;inset:0;display:grid;place-items:center;gap:10px;text-align:center;
    background:rgba(10,10,14,.86);padding:20px;
  }
  .overlay.hide{display:none}
  .overlay strong{font-family:var(--display);font-size:19px;font-weight:600}
  .overlay span{font-size:13px;color:var(--muted);max-width:26ch}
  .dpad{display:grid;grid-template-columns:repeat(3,36px);grid-template-rows:repeat(2,32px);gap:5px;justify-content:center}
  .dpad button{
    border:1px solid var(--line);background:var(--surface-2);color:var(--muted);border-radius:0;
    font-family:var(--mono);font-size:13px;cursor:pointer;padding:0;
  }
  .dpad button:hover{border-color:#3A3A47;color:var(--text)}
  .dpad .u{grid-column:2}
  .dpad .l{grid-column:1;grid-row:2}
  .dpad .d{grid-column:2;grid-row:2}
  .dpad .r{grid-column:3;grid-row:2}

  /* hotfix typing */
  .snippet{
    font-family:var(--mono);font-size:13.5px;line-height:1.75;border:1px solid var(--line);
    border-radius:0;background:var(--surface-2);padding:14px;word-break:break-word;min-height:96px;
  }
  .snippet u{text-decoration:none;color:var(--ok)}
  .snippet s{text-decoration:none;color:var(--bug);background:rgba(248,113,113,.14);border-radius:2px}
  .snippet i{font-style:normal;color:var(--muted-dim)}
  .snippet mark{background:var(--violet-wash);color:var(--violet-lit);border-radius:2px}
  .type-in{
    width:100%;background:var(--surface);border:1px solid var(--line);border-radius:0;
    padding:11px 13px;color:var(--text);font-family:var(--mono);font-size:13.5px;
  }
  .type-in:focus{outline:none;border-color:var(--violet-edge)}
  .type-in::placeholder{color:var(--muted-dim)}

  /* ---------- tools ---------- */
  .node{border:1px solid var(--line);background:var(--surface-2);padding:13px}
  .tools{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:stretch}
  .cab.tool.out{grid-column:1/-1}
  .field{
    width:100%;background:var(--surface-2);border:1px solid var(--line);border-radius:0;
    padding:11px 13px;color:var(--text);font-family:var(--mono);font-size:13px;line-height:1.65;
  }
  .field:focus{outline:none;border-color:var(--violet-edge)}
  .field::placeholder{color:var(--muted-dim)}
  textarea.field{min-height:84px;resize:vertical;display:block}
  .row-btns{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
  .note{font-family:var(--mono);font-size:12px;color:var(--muted-dim);word-break:break-word}
  .note.bad{color:var(--bug)}
  .note.good{color:var(--ok)}
  .big-out{
    font-family:var(--mono);font-size:14.5px;color:var(--violet-lit);background:var(--surface-2);
    border:1px solid var(--line);border-radius:0;padding:16px 14px;text-align:center;
    word-break:break-all;user-select:all;
  }
  .kv{display:grid;gap:8px}
  .kv div{display:flex;justify-content:space-between;gap:14px;align-items:baseline}
  .kv span{color:var(--muted);font-size:13.5px}
  .kv b{font-family:var(--mono);font-size:12.5px;font-weight:400;color:var(--text);text-align:right}
  .toast{
    position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;
    background:var(--surface-2);border:1px solid var(--violet-edge);color:var(--text);
    font-family:var(--mono);font-size:12.5px;padding:9px 16px;border-radius:0;
    pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:80;
  }
  .toast.show{opacity:1;transform:translateX(-50%)}

  /* ---------- what we build ---------- */
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
  .card{max-height:420px}
  .card{
    border:1px solid var(--line);background:var(--surface);padding:26px;
    position:relative;transition:border-color .2s ease;
    aspect-ratio:1/1;display:flex;flex-direction:column;justify-content:space-between;
  }
  .card:hover{border-color:#33333F}
  .card .body{margin-top:auto}
  .card h3{margin-bottom:10px}
  .card p{color:var(--muted);font-size:14.5px}
  .card .art{
    display:block;width:100%;max-width:180px;height:auto;margin:0 0 18px;
    opacity:.92;
  }
  .card:hover .art{opacity:1}
  .card .glyph{
    width:30px;height:30px;border-radius:0;background:var(--violet-wash);border:1px solid var(--violet-edge);
    display:grid;place-items:center;font-family:var(--mono);font-size:12px;color:var(--violet-lit);margin-bottom:16px;
  }
  .strip{
    margin-top:44px;border:1px solid var(--line);border-radius:0;padding:18px 22px;
    background:var(--surface);display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;
  }
  .strip b{font-family:var(--display);font-size:15px;font-weight:600}
  .strip span{font-size:14px;color:var(--muted)}
  .stack{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
  .chip{font-family:var(--mono);font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:0;padding:5px 11px;background:rgba(255,255,255,.015)}

  /* faq */
  details{border-bottom:1px solid var(--line-soft)}
  summary{
    list-style:none;cursor:pointer;padding:19px 0;font-family:var(--display);font-size:16.5px;
    font-weight:500;letter-spacing:-.01em;display:flex;justify-content:space-between;gap:20px;align-items:center;
  }
  summary::-webkit-details-marker{display:none}
  summary::after{content:"+";font-family:var(--mono);color:var(--violet-lit);font-size:18px;flex:none;transition:transform .2s ease}
  details[open] summary::after{transform:rotate(45deg)}
  details p{padding:0 0 20px;color:var(--muted);font-size:14.5px;max-width:70ch}

  /* footer */
  footer{border-top:1px solid var(--violet-edge);background:var(--bg-soft);position:relative}
  footer::before,footer::after{
    content:"";position:absolute;left:0;right:0;height:14px;pointer-events:none;
    background-image:var(--hatch-violet);
  }
  footer::before{top:0;border-bottom:1px solid var(--line-soft)}
  footer::after{bottom:0;border-top:1px solid var(--line-soft)}
  .sub{padding:66px 0 56px;text-align:center;position:relative;overflow:hidden}
  .sub::before{
    content:"";position:absolute;bottom:-260px;left:50%;transform:translateX(-50%);
    width:780px;height:420px;background:radial-gradient(ellipse at center,rgba(139,92,246,.13),transparent 68%);
  }
  .sub .wrap{position:relative}
  .sub h2{font-size:clamp(24px,3.4vw,34px)}
  .sub p{color:var(--muted);margin-top:12px;font-size:15px}
  .subform{display:flex;gap:10px;max-width:420px;margin:26px auto 0}
  .subform input{
    flex:1;background:var(--surface);border:1px solid var(--line);border-radius:0;
    padding:11px 14px;color:var(--text);font-family:var(--body);font-size:14px;
  }
  .subform input::placeholder{color:var(--muted-dim)}
  .subform input:focus{outline:none;border-color:var(--violet-edge)}
  .fine{font-size:12px;color:var(--muted-dim);margin-top:14px}
  .cols{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:26px;padding:50px 0 40px;border-top:1px solid var(--line-soft)}
  .cols h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted-dim);margin:0 0 14px;font-weight:400}
  .cols ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
  .cols a{font-size:14px;color:var(--muted)}
  .cols a:hover{color:var(--text)}
  .cols .about{font-size:14px;color:var(--muted);max-width:30ch;margin-top:14px}
  .base{display:flex;flex-wrap:wrap;gap:16px;align-items:center;padding:20px 0 46px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--muted-dim)}
  .base .cheat{font-family:var(--mono);margin-left:auto}

  .rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
  .rv.in{opacity:1;transform:none}

  @media (max-width:980px){
    .arcade{grid-template-columns:1fr 1fr}
    .grid-3{grid-template-columns:1fr 1fr}
    .nav-links{display:none}
  }
  @media (max-width:640px){
    .pad{padding:58px 0}
    .hero{padding:48px 0 44px}
    .arcade,.grid-3,.cols,.tools{grid-template-columns:1fr}
    .grid-3{gap:30px}
    .card{aspect-ratio:auto}
    .card::before,.cab.tool::before{left:-11px;width:11px;top:11px;bottom:-11px}
    .card::after,.cab.tool::after{left:-11px;right:11px;bottom:-11px;height:11px}
    .subform{flex-direction:column}
    .hero-cta .btn{flex:1;justify-content:center}
    .tally{display:none}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    .rv{opacity:1;transform:none}
    .hole .byte{transform:none}
  }

  /* ---------- long-form legal pages ---------- */
  .prose{max-width:72ch}
  .prose h2{font-size:21px;margin:40px 0 12px}
  .prose h2:first-child{margin-top:0}
  .prose p,.prose ul{color:var(--muted);font-size:15px;margin:0 0 14px}
  .prose ul{padding-left:20px}
  .prose li{margin-bottom:7px}
  .prose a{color:var(--violet-lit)}
  .prose strong{color:var(--text);font-weight:500}
  .prose .meta{font-family:var(--mono);font-size:12px;color:var(--muted-dim);margin-bottom:30px}
  .todo{
    border-left:3px solid var(--orange);background:rgba(245,158,11,.07);
    padding:11px 15px;margin:0 0 18px;color:var(--orange-lit);
    font-family:var(--mono);font-size:12.5px;line-height:1.65;
  }