:root { --ink:#dbe6f5; --mut:#7d8ea8; --acc:#35e0d8; --acc2:#8ef0ea; --gold:#35e0d8; --bg:#070b14; --panel:#0d1524; --line:#1c2a44; --ok:#3ddc84; --dn:#ff6b6b; --navy:#0d1524; --blue:#35e0d8; }
  * { box-sizing:border-box; }
  body { margin:0; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; color:var(--ink); background:var(--bg); line-height:1.55; }
  a { color:var(--acc); }
  .wrap { max-width:1060px; margin:0 auto; padding:0 20px; }
  html { scroll-padding-top:62px; }
  /* nav */
  nav { background:#0a111f; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:50; }
  nav .wrap { display:flex; align-items:center; gap:14px; min-height:56px; padding-top:7px; padding-bottom:7px; }
  nav .logo { color:#fff; font-weight:800; font-size:19px; letter-spacing:.3px; text-decoration:none; }
  nav .logo span { color:var(--acc); }
  nav a.lnk { color:#9fb0c8; text-decoration:none; font-size:13.5px; white-space:nowrap; transition:color .2s; }
  nav a.lnk:hover { color:var(--acc); }
  nav .links { display:flex; align-items:center; gap:12px; flex-wrap:nowrap; font-size:13px; }
  @media(max-width:900px){
    nav .wrap { flex-wrap:wrap; row-gap:6px; }
    nav .links { overflow-x:auto; scrollbar-width:none; max-width:100%;
                 -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);
                 mask-image:linear-gradient(90deg,#000 88%,transparent); }
    nav .links::-webkit-scrollbar { display:none; }
    html { scroll-padding-top:112px; }
  }
  nav .navbtns { margin-left:auto; display:flex; align-items:center; gap:10px; flex:none; }
  nav .donate { background:#FFDD00; color:#1a1a1a; font-weight:700; padding:6px 14px; border-radius:6px; text-decoration:none; font-size:13.5px; white-space:nowrap; }
  nav .donate:hover { background:#ffe74d; }
  nav .donate.ghost { background:transparent; color:var(--acc); border:1px solid var(--acc2); }
  nav .donate.ghost:hover { color:#fff; border-color:#fff; }
  /* comments */
  .cform { display:flex; flex-direction:column; gap:9px; max-width:600px; margin:4px 0 22px; }
  .cform input, .cform textarea { font:inherit; font-size:14px; padding:9px 13px; border:1px solid var(--line);
                                  border-radius:9px; background:var(--panel); color:var(--ink); outline:none; }
  .cform input:focus, .cform textarea:focus { border-color:var(--acc); box-shadow:0 0 0 3px rgba(53,224,216,.12); }
  .cform textarea { min-height:74px; resize:vertical; }
  .cbtn { align-self:flex-start; font:inherit; font-size:14px; font-weight:700; padding:9px 20px; border:0;
          border-radius:8px; background:var(--acc); color:#04211f; cursor:pointer; }
  .cbtn:hover { background:#5ce8e1; } .cbtn:disabled { opacity:.5; cursor:default; }
  .cvis { display:flex; gap:20px; font-size:13.5px; color:var(--mut); }
  .cvis label { display:flex; gap:6px; align-items:center; cursor:pointer; }
  .cnote { font-size:13px; color:var(--ok); min-height:16px; }
  /* agent section */
  #api pre { background:#0d1524; color:#cfe3f5; border:1px solid var(--line); padding:14px 16px; border-radius:8px;
             font:12.5px/1.6 Consolas,"Courier New",monospace; overflow-x:auto; white-space:pre-wrap; }
  #api code { background:#12203a; color:#cfe3f5; padding:1px 6px; border-radius:4px;
              font:12.5px Consolas,"Courier New",monospace; }
  .cmt { padding:13px 2px; border-bottom:1px solid var(--line); }
  .cmt b { color:var(--acc2); }
  .cmt .cmeta { font-size:12px; color:var(--mut); margin-left:8px; }
  .cmt p { margin:5px 0 0; font-size:14px; line-height:1.55; white-space:pre-wrap; }
  /* notice bar */
  .notice { background:rgba(245,166,35,.10); border-bottom:1px solid rgba(245,166,35,.3); font-size:12.5px; color:#e8c877; text-align:center; padding:6px 12px; }
  /* hero */
  header.hero { background:radial-gradient(1200px 500px at 75% 20%, rgba(53,224,216,.07), transparent 60%), linear-gradient(135deg,#070b14 0%,#0d1b30 100%); color:#fff; padding:64px 0 56px; border-bottom:1px solid var(--line); }
  .hero h1 { font-size:clamp(28px,4.5vw,44px); margin:0 0 14px; line-height:1.15; }
  .hero h1 em { color:var(--acc); font-style:normal; }
  .hero p.sub { font-size:18px; color:#9fb0c8; max-width:680px; margin:0 0 26px; }
  .hero .cta { display:inline-block; background:var(--acc); color:#04211f; font-weight:800; font-size:17px; padding:13px 30px; border-radius:8px; text-decoration:none; margin-right:14px; transition:transform .15s, box-shadow .15s; }
  .hero .cta:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(53,224,216,.25); }
  .hero .cta2 { display:inline-block; color:var(--acc); font-size:15px; text-decoration:none; border:1px solid var(--acc2); padding:12px 24px; border-radius:8px; }
  .hero .cta2:hover { border-color:#fff; color:#fff; }
  .badges { display:flex; gap:26px; flex-wrap:wrap; margin-top:34px; }
  .badge b { display:block; font-size:26px; color:var(--acc); }
  .badge span { font-size:13px; color:var(--mut); }
  /* radar (reference-site sweep graphic) */
  .radar-wrap { display:flex; justify-content:center; }
  .radar { position:relative; width:min(300px,60vw); aspect-ratio:1; border-radius:50%;
           border:1px solid var(--acc2);
           background:radial-gradient(circle, transparent 30%, rgba(53,224,216,.04) 31%, transparent 32%),
                      radial-gradient(circle, transparent 55%, rgba(53,224,216,.05) 56%, transparent 57%),
                      radial-gradient(circle, rgba(53,224,216,.06), transparent 70%), var(--panel);
           box-shadow:0 0 60px rgba(53,224,216,.08), inset 0 0 40px rgba(53,224,216,.05); }
  .radar::before, .radar::after { content:""; position:absolute; border:1px solid rgba(53,224,216,.18); border-radius:50%; }
  .radar::before { inset:18%; } .radar::after { inset:36%; }
  .cross-h, .cross-v { position:absolute; background:rgba(53,224,216,.15); }
  .cross-h { left:0; right:0; top:50%; height:1px; } .cross-v { top:0; bottom:0; left:50%; width:1px; }
  .sweep { position:absolute; inset:0; border-radius:50%;
           background:conic-gradient(from 0deg, rgba(53,224,216,.55), rgba(53,224,216,.12) 40deg, transparent 90deg);
           animation:spin 4s linear infinite; }
  @keyframes spin { to { transform:rotate(360deg); } }
  .blip { position:absolute; width:9px; height:9px; background:var(--acc); border-radius:50%;
          box-shadow:0 0 12px var(--acc); animation:pulse 2.4s ease-out infinite; }
  .b1 { top:30%; left:62%; } .b2 { top:66%; left:38%; animation-delay:.8s; } .b3 { top:44%; left:26%; animation-delay:1.5s; }
  @keyframes pulse { 0% { opacity:1; transform:scale(1); } 70% { opacity:.25; transform:scale(1.8); } 100% { opacity:0; transform:scale(2.2); } }
  @media (prefers-reduced-motion: reduce) { .sweep, .blip { animation:none; } }
  .hero-grid { display:grid; grid-template-columns:1.15fr .85fr; gap:40px; align-items:center; }
  @media(max-width:860px){ .hero-grid { grid-template-columns:1fr; } .radar-wrap { order:-1; } }
  /* sections */
  section { padding:56px 0; }
  section h2 { font-size:28px; margin:0 0 8px; }
  section .lead { color:var(--mut); margin:0 0 30px; font-size:16px; max-width:760px; }
  .cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:18px; }
  .card { background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:22px; }
  .card h3 { margin:0 0 8px; font-size:17px; color:var(--acc); }
  .card p { margin:0; font-size:14px; color:var(--mut); }
  .card .n { display:inline-block; background:rgba(53,224,216,.12); color:var(--acc); font-weight:800; border-radius:50%; width:30px; height:30px; text-align:center; line-height:30px; margin-bottom:10px; }
  /* system blocks */
  .sys { background:var(--panel); border:1px solid var(--line); border-left:6px solid var(--acc); border-radius:12px; padding:26px 28px; margin-bottom:26px; }
  .sys.t2 { border-left-color:#3ddc84; }
  .sys.t3 { border-left-color:#b07ce8; }
  .sys.t1 { border-left-color:#f0a860; }
  .sys h3 { margin:0 0 4px; font-size:22px; }
  .sys .tag { display:inline-block; font-size:12px; font-weight:700; border-radius:20px; padding:2px 12px; margin-left:8px; vertical-align:middle; }
  .sys.t2 .tag { background:rgba(61,220,132,.12); color:#3ddc84; }
  .sys.t3 .tag { background:rgba(176,124,232,.14); color:#c9a5f5; }
  .sys.t1 .tag { background:rgba(240,168,96,.13); color:#f0b87a; }
  .sys .one { color:var(--mut); font-size:15px; margin:0 0 16px; }
  .sys h4 { margin:18px 0 6px; font-size:15px; text-transform:uppercase; letter-spacing:.5px; color:var(--acc2); }
  .sys ul, .sys ol { margin:6px 0 0; padding-left:22px; font-size:14.5px; }
  .sys li { margin-bottom:5px; }
  .plan { display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:10px; margin-top:8px; }
  .plan div { background:#12203a; border-radius:8px; padding:10px 12px; font-size:13.5px; }
  .plan b { display:block; font-size:12px; color:var(--mut); text-transform:uppercase; letter-spacing:.4px; }
  .example { background:rgba(61,220,132,.06); border:1px solid rgba(61,220,132,.25); border-radius:8px; padding:14px 16px; margin-top:14px; font-size:14px; }
  .example.warn { background:rgba(245,166,35,.07); border-color:rgba(245,166,35,.3); }
  .example b:first-child { color:#3ddc84; }
  .example.warn b:first-child { color:#e8c877; }
  /* demo */
  #demo { background:var(--panel); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  #demoCanvas, #demoCanvas3 { width:100%; max-width:960px; border:1px solid var(--line); border-radius:8px; background:#0a111f; display:block; }
  .democtl { display:flex; gap:10px; align-items:center; margin:14px 0 6px; flex-wrap:wrap; }
  .democtl button { background:var(--acc); color:#04211f; border:0; border-radius:6px; padding:9px 18px; font-size:14px; font-weight:600; cursor:pointer; }
  .democtl button.alt { background:#12203a; color:var(--acc2); }
  #demoStep, #demoStep3 { font-size:14px; color:var(--mut); }
  /* tables */
  table { border-collapse:collapse; width:100%; font-size:14px; background:transparent; }
  th,td { padding:8px 12px; border-bottom:1px solid var(--line); text-align:left; }
  th { background:#12203a; font-size:13px; }
  .num { text-align:right; }
  .ok { color:var(--ok); font-weight:700; } .bad { color:var(--dn); font-weight:700; }
  .tblwrap { overflow-x:auto; border:1px solid var(--line); border-radius:8px; }
  /* evidence */
  .evid { display:grid; grid-template-columns:1.2fr .8fr; gap:26px; align-items:start; }
  @media(max-width:800px){ .evid{grid-template-columns:1fr;} }
  .honest { background:rgba(245,166,35,.06); border:1px solid rgba(245,166,35,.28); border-radius:8px; padding:16px 18px; font-size:13.5px; color:#dcc28a; }
  .honest b { color:#f0d9a4; }
  /* ads */
  .adslot { border:2px dashed var(--line); border-radius:8px; background:var(--panel); color:var(--mut); text-align:center; font-size:12px; padding:26px 10px; margin:26px 0; letter-spacing:1px; }
  /* donate */
  #donate { background:radial-gradient(900px 400px at 50% 0%, rgba(53,224,216,.08), transparent 60%), #0a111f; color:#fff; border-top:1px solid var(--line); }
  #donate h2 { color:#fff; }
  #donate p { color:#9fb0c8; max-width:680px; }
  .dbtns { display:flex; gap:14px; flex-wrap:wrap; margin-top:20px; }
  .dbtn { background:#FFDD00; color:#1a1a1a; font-weight:800; padding:13px 26px; border-radius:8px; text-decoration:none; font-size:16px; }
  .dbtn:hover { background:#ffe74d; }
  .dbtn.ghost { background:transparent; border:1.5px solid var(--acc2); color:var(--acc2); font-weight:600; }
  .fine { font-size:12.5px; color:var(--mut); margin-top:16px; }
  /* faq / glossary */
  details { background:var(--panel); border:1px solid var(--line); border-radius:8px; padding:14px 18px; margin-bottom:10px; }
  details summary { cursor:pointer; font-weight:600; font-size:15px; }
  details p { color:var(--mut); font-size:14px; }
  /* footer */
  footer { background:#05080f; color:#7d8ea8; font-size:12.5px; padding:34px 0 44px; border-top:1px solid var(--line); }
  footer h4 { color:#c8d8e8; font-size:13px; margin:0 0 8px; }
  footer .legal { border:1px solid var(--line); border-radius:8px; padding:14px 16px; margin-bottom:18px; }

  nav a.lnk.on { color:#fff; font-weight:700; }