:root{
    --bg:#0b0e15; --surface:#141a26; --surface2:#1b2230; --raise:#222b3c;
    --border:#2a3446; --border2:#3a4760; --text:#e8eef6; --muted:#9aa8bd; --faint:#6b7993;
    --accent:#ffb454; --accent2:#54d6cf; --grad:linear-gradient(100deg,#ffb454,#ff7a9c 55%,#9b6cff);
    --good:#56d987; --warn:#ffcf5c; --bad:#ff8a8a;
    --r-sm:9px; --r:14px; --r-lg:20px; --r-xl:28px;
    --maxw:1200px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif;
    font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  h1,h2,h3,.disp{font-family:"Space Grotesk",Inter,sans-serif;letter-spacing:-.02em}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
  a{color:inherit}

  header.top{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);background:rgba(11,14,21,.7);border-bottom:1px solid var(--border)}
  .top .wrap{display:flex;align-items:center;gap:16px;height:60px}
  .logo{font-family:"Space Grotesk";font-weight:700;font-size:17px}.logo b{color:var(--accent)}
  .top nav{margin-left:auto;display:none;gap:20px}
  @media(min-width:820px){.top nav{display:flex}}
  .top nav a{color:var(--muted);font-size:13.5px;text-decoration:none;position:relative}
  .top nav a::after{content:"";position:absolute;left:0;bottom:-5px;height:2px;width:0;background:var(--accent);transition:width .3s}
  .top nav a:hover{color:var(--text)}.top nav a:hover::after{width:100%}
  .asof{color:var(--muted);font-size:12px;border:1px solid var(--border);padding:5px 10px;border-radius:var(--r-sm);white-space:nowrap}

  .hero{position:relative;overflow:hidden;padding:86px 0 54px;border-bottom:1px solid var(--border)}
  #stars{position:absolute;inset:0;z-index:0}
  .hero::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:
    radial-gradient(900px 520px at 80% -10%,rgba(155,108,255,.22),transparent 60%),
    radial-gradient(760px 480px at 4% 6%,rgba(84,214,207,.16),transparent 55%),
    radial-gradient(680px 420px at 60% 120%,rgba(255,122,156,.14),transparent 60%)}
  .hero .wrap{position:relative;z-index:2}
  .ey{display:inline-flex;align-items:center;gap:9px;color:var(--accent2);font-size:12.5px;font-weight:600;
    text-transform:uppercase;letter-spacing:.18em;margin-bottom:20px}
  .ey .dot{width:8px;height:8px;border-radius:50%;background:var(--accent2);box-shadow:0 0 14px var(--accent2);animation:pulse 2.6s infinite}
  @keyframes pulse{50%{opacity:.45;transform:scale(.8)}}
  .hero h1{font-size:clamp(36px,6.4vw,68px);line-height:1.0;font-weight:700;margin:0 0 20px;max-width:15ch}
  .hero p.lead{font-size:clamp(16px,2.2vw,20px);color:var(--muted);max-width:660px;margin:0 0 34px}
  .stats{display:flex;flex-wrap:wrap;gap:14px}
  .stat{background:rgba(20,26,38,.7);border:1px solid var(--border);border-radius:var(--r);padding:14px 20px 18px;min-width:108px;position:relative;overflow:hidden}
  .stat::after{content:"";position:absolute;left:14px;right:14px;bottom:9px;height:3px;border-radius:3px;background:var(--grad);opacity:.9}
  .stat .n{font-family:"Space Grotesk";font-weight:700;font-size:30px;line-height:1}
  .stat .l{color:var(--faint);font-size:12px;margin-top:6px}

  .section-label{font-family:"Space Grotesk";font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.15em;color:var(--faint);margin:0 0 14px}
  .usecases{padding:30px 0 4px}
  .chips{display:flex;flex-wrap:wrap;gap:10px}
  .chip{cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:10px 16px;border-radius:999px;font-size:14px;font-weight:500;transition:all .25s;display:inline-flex;align-items:center;gap:8px;user-select:none}
  .chip:hover{border-color:var(--border2);transform:translateY(-2px)}
  .chip.active{background:var(--grad);color:#15110a;border-color:transparent;font-weight:600;box-shadow:0 6px 20px rgba(255,122,156,.28)}

  .toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:22px 0 6px}
  .search{flex:1;min-width:200px;display:flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:11px 14px;transition:.25s}
  .search:focus-within{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(84,214,207,.14)}
  .search input{flex:1;background:none;border:none;outline:none;color:var(--text);font-size:15px;font-family:inherit}
  .toggle{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;cursor:pointer;user-select:none}.toggle input{accent-color:var(--accent)}

  .sec{padding:54px 0 8px}
  .sechead{display:flex;align-items:baseline;gap:12px;margin:0 0 6px}
  .sechead h2{font-size:clamp(22px,3.4vw,32px);margin:0;font-weight:700}
  .sechead .rule{flex:1;height:1px;background:linear-gradient(90deg,var(--border),transparent)}
  .subnote{color:var(--muted);font-size:14px;margin:0 0 18px;max-width:680px}

  .cardz{background:linear-gradient(180deg,var(--surface2),var(--surface));border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;box-shadow:0 10px 40px rgba(0,0,0,.28);position:relative;overflow:hidden}
  .cardz::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad);opacity:0;transition:opacity .3s}
  .cardz:hover::before{opacity:.7}
  .chart{width:100%;height:440px}
  .grid2{display:grid;gap:18px;grid-template-columns:1fr}
  @media(min-width:920px){.grid2{grid-template-columns:1fr 1fr}}
  .reveal{opacity:0;transform:translateY(26px)}
  @media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}#stars{display:none}}

  .grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
  .pc{background:linear-gradient(180deg,var(--surface2),var(--surface));border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;display:flex;flex-direction:column;gap:9px;transition:transform .3s,box-shadow .3s,border-color .3s}
  .pc:hover{transform:translateY(-4px);box-shadow:0 16px 44px rgba(0,0,0,.4);border-color:var(--border2)}
  .pc .brand{color:var(--accent2);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
  .pc h3{margin:1px 0 0;font-size:17.5px;font-weight:600}
  .pc .meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
  .price{font-family:"Space Grotesk";font-weight:600;font-size:15px}
  .rel{color:var(--faint);font-size:12px}
  .cap{margin-left:auto;font-family:"Space Grotesk";font-weight:700;font-size:14px;color:var(--accent)}
  .badge{font-size:10px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 8px;border-radius:999px;border:1px solid}
  .badge.rumor{color:var(--warn);border-color:rgba(255,207,92,.4);background:rgba(255,207,92,.08)}
  .badge.nous{color:var(--bad);border-color:rgba(255,138,138,.4);background:rgba(255,138,138,.08)}
  .standout{color:var(--text);font-size:13.5px}
  .ctag{display:inline-block;font-size:11px;color:var(--muted);background:var(--raise);border:1px solid var(--border);border-radius:7px;padding:3px 8px;margin:0 5px 5px 0}
  .src{margin-top:auto;padding-top:6px}.src a{color:var(--faint);font-size:12px;text-decoration:none;border-bottom:1px dotted var(--border2)}.src a:hover{color:var(--accent2)}

  .method{background:var(--surface);border:1px dashed var(--border2);border-radius:var(--r-lg);padding:18px 20px;margin-top:18px}
  .method h3{margin:0 0 8px;font-size:14px;color:var(--muted)}
  .method code{background:var(--raise);padding:2px 6px;border-radius:6px;color:var(--accent2);font-size:12.5px}
  .method p{margin:6px 0;color:var(--muted);font-size:13px}
  .method p.fineprint{color:var(--faint);font-size:12px;border-top:1px solid var(--border);margin-top:12px;padding-top:10px}

  footer{margin-top:60px;border-top:1px solid var(--border);padding:32px 0 64px;color:var(--faint);font-size:13px}
  footer b{color:var(--muted)}
  @media(max-width:560px){.hero{padding:54px 0 36px}.grid{grid-template-columns:1fr}.chart{height:380px}.chip{padding:13px 17px}.search{padding:14px}.toggle{min-height:44px;padding:6px 4px}}
  /* compatibility matrix + toggle (bespoke D3) */
  .compat-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
  .compat-title{font-family:'Space Grotesk',Inter,sans-serif;font-weight:700;font-size:16px;color:var(--text)}
  .compat-toggle{display:inline-flex;gap:4px;background:var(--surface2);border:1px solid var(--border);border-radius:11px;padding:3px}
  .ct-btn{padding:8px 15px;min-height:40px;border:none;background:none;color:var(--muted);border-radius:8px;cursor:pointer;font:inherit;font-size:13px;transition:.2s}
  .ct-btn:hover{color:var(--text)}
  .ct-btn.active{background:var(--accent);color:#0b0e15;font-weight:600}
  .compat-view{max-width:100%;overflow:auto}
  #compat-matrix{max-height:560px;border:1px solid var(--border);border-radius:12px}
  table.matrix{border-collapse:separate;border-spacing:0;font-size:12px}
  table.matrix th,table.matrix td{border-bottom:1px solid var(--border)}
  table.matrix thead th{position:sticky;top:0;z-index:2;background:var(--surface2);cursor:pointer;user-select:none;vertical-align:bottom}
  table.matrix th.corner{left:0;z-index:3;text-align:left;padding:8px 12px;color:var(--faint);text-transform:uppercase;letter-spacing:.04em;font-size:10px}
  table.matrix th.eco{height:98px;padding:6px 0;width:30px}
  table.matrix th.eco span{writing-mode:vertical-rl;transform:rotate(180deg);white-space:nowrap;display:inline-block;font-weight:500;color:var(--muted)}
  table.matrix th.eco.sortcol span{color:var(--accent)}
  table.matrix th.dev{position:sticky;left:0;background:var(--surface);text-align:left;padding:9px 12px;max-width:170px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer;font-weight:500;color:var(--text)}
  table.matrix tbody tr:hover{background:rgba(255,255,255,.03)}
  table.matrix tbody tr:hover th.dev{color:var(--accent2);background:var(--surface2)}
  table.matrix td{text-align:center;width:30px;padding:9px 0}
  table.matrix td.on{color:var(--accent2);font-weight:700}
  table.matrix td.off{color:var(--border2)}
  .cg-hint{color:var(--faint);font-size:12px;text-align:center;margin-top:8px}
  #cgsvg{cursor:grab}#cgsvg:active{cursor:grabbing}
  /* detail modal (click-to-detail) */
  body.modal-open{overflow:hidden}
  .modal[hidden]{display:none}
  .modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}
  .modal-backdrop{position:absolute;inset:0;background:rgba(5,7,12,.6);backdrop-filter:blur(4px)}
  .modal-card{position:relative;z-index:1;width:min(560px,100%);max-height:86vh;overflow:auto;background:linear-gradient(180deg,var(--surface2),var(--surface));border:1px solid var(--border2);border-radius:var(--r-lg);padding:22px 22px 20px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
  .modal-x{position:absolute;top:10px;right:10px;width:44px;height:44px;border:none;background:none;color:var(--muted);font-size:24px;line-height:1;cursor:pointer;border-radius:10px}
  .modal-x:hover{color:var(--text);background:var(--raise)}
  .modal-card .brand{color:var(--accent2);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
  .modal-card h3.mtitle{font-family:'Space Grotesk',Inter,sans-serif;font-size:24px;margin:2px 0 0}
  .modal-card .meta{display:flex;gap:14px;align-items:baseline;flex-wrap:wrap;margin:10px 0}
  .axes{display:flex;flex-direction:column;gap:6px;margin:12px 0}
  .ax{display:grid;grid-template-columns:84px 1fr 34px;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
  .axbar{height:7px;background:var(--raise);border-radius:6px;overflow:hidden}
  .axbar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent2),var(--accent))}
  .axv{text-align:right;color:var(--faint)}
  .kshead{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--faint);margin:14px 0 6px}
  .kspecs{display:flex;flex-direction:column;gap:5px}
  .kspec{display:grid;grid-template-columns:120px 1fr;gap:10px;font-size:13px;border-bottom:1px solid var(--border);padding-bottom:5px}
  .kspec .kk{color:var(--muted);text-transform:capitalize}.kspec .kv{color:var(--text)}
  .comprow{margin-top:4px}
  .modal-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
  .btn-buy,.btn-cmp,.btn-watch{min-height:44px;padding:11px 18px;border-radius:10px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;border:1px solid var(--border2)}
  .btn-buy{background:var(--accent);color:#0b0e15;border-color:var(--accent);text-decoration:none;display:inline-flex;align-items:center}
  .btn-buy:hover{filter:brightness(1.07)}
  .btn-cmp{background:none;color:var(--accent2)}
  .btn-cmp:hover{background:var(--raise)}
  .btn-watch{background:none;color:#ff7a9c;border-color:rgba(255,122,156,.4);text-decoration:none;display:inline-flex;align-items:center}
  .btn-watch:hover{background:rgba(255,122,156,.1)}
  /* radar comparison selector */
  .radar-sel{margin-bottom:8px}
  .rs-row{display:flex;flex-wrap:wrap;gap:7px;align-items:center}
  .rs-hint{color:var(--faint);font-size:12px}
  .rs-chip{display:inline-flex;align-items:center;gap:6px;background:var(--raise);border:1px solid var(--border2);color:var(--text);font-size:12px;border-radius:999px;padding:5px 6px 5px 11px}
  .rs-chip button{width:22px;height:22px;border:none;background:rgba(255,255,255,.06);color:var(--muted);border-radius:999px;cursor:pointer;font-size:14px;line-height:1}
  .rs-chip button:hover{color:var(--bad)}
  .rs-add{flex:1;min-width:140px;min-height:38px;background:var(--surface);border:1px solid var(--border);border-radius:9px;color:var(--text);padding:8px 12px;font:inherit;font-size:13px;outline:none}
  .rs-add:focus{border-color:var(--accent2)}
  .rs-reset{min-height:38px;padding:7px 13px;border:1px solid var(--border);background:var(--surface);color:var(--muted);border-radius:9px;cursor:pointer;font:inherit;font-size:12px}
  .rs-reset:hover{color:var(--text)}
  @media(max-width:560px){.rs-add{min-height:44px}.modal-card{padding:18px 16px}}
  /* measured-vs-claimed provenance badges */
  .mtag{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:2px 7px;border-radius:999px;margin-left:8px;vertical-align:middle}
  .mtag.claim{color:var(--muted);background:var(--raise);border:1px solid var(--border)}
  .mtag.meas{color:var(--accent2);background:rgba(84,214,207,.1);border:1px solid rgba(84,214,207,.35)}
  /* graph-everything homepage hub */
  .hub-hero{padding:60px 0 24px}
  .hub-hero h1{font-size:clamp(40px,7vw,82px);line-height:1.02;letter-spacing:-.02em;margin:0 0 16px}
  .hub-hero .lead{max-width:640px}
  .hubstats{display:flex;gap:26px;flex-wrap:wrap;margin-top:22px}
  .hubstats .n{font-family:'Space Grotesk',Inter,sans-serif;font-weight:700;font-size:26px;color:var(--text)}
  .hubstats .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
  .cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px;padding:30px 0 90px}
  .cat-card{display:flex;flex-direction:column;gap:11px;background:linear-gradient(180deg,var(--surface2),var(--surface));border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:var(--r-lg);padding:26px;text-decoration:none;color:var(--text);transition:transform .3s,box-shadow .3s,border-color .3s;min-height:210px}
  .cat-card:hover{transform:translateY(-4px);box-shadow:0 18px 52px rgba(0,0,0,.42)}
  .cat-card .cc-emoji{font-size:34px;line-height:1}
  .cat-card h3{font-family:'Space Grotesk',Inter,sans-serif;font-size:25px;margin:2px 0 0}
  .cat-card .cc-count{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
  .cat-card .cc-desc{color:var(--muted);font-size:14px;line-height:1.55;flex:1}
  .cat-card .cc-go{font-weight:600;font-size:14px;margin-top:4px}
  .cat-card.soon{opacity:.6;cursor:default;border-top-color:var(--border2)}
  .cat-card.soon:hover{transform:none;box-shadow:none}
  @media(max-width:560px){.hub-hero{padding:40px 0 16px}.cat-grid{padding:20px 0 56px}}