:root{
  --bg:#0b1120; --bg2:#0e1726; --panel:#121c2e; --panel2:#16233a;
  --border:#22304a; --border2:#2c3d5c;
  --text:#e6edf6; --muted:#8aa0bd; --faint:#566b88;
  --muted2:#6f86a6;
  --teal:#2dd4a7; --teal-dim:#1f9f7e; --teal-ghost:rgba(45,212,167,.12);
  --amber:#e0a93b; --purple:#8b7bf0; --red:#e46b6b;
  --radius:14px; --radius-sm:9px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --mono:ui-monospace,"SF Mono",Menlo,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:var(--sans); background:var(--bg); color:var(--text);
  -webkit-font-smoothing:antialiased; line-height:1.55;
}
b{font-weight:700}
a{color:inherit;text-decoration:none}

/* scroll rail */
#scrollrail{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:50}
#scrollrail-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--purple));transition:width .1s linear}

/* dot nav */
#dotnav{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;gap:14px}
#dotnav .dot{width:11px;height:11px;border-radius:50%;background:var(--border2);border:1px solid var(--border2);position:relative;transition:all .25s}
#dotnav .dot:hover,#dotnav .dot.active{background:var(--teal);border-color:var(--teal);box-shadow:0 0 0 4px var(--teal-ghost)}
#dotnav .dot::after{content:attr(data-label);position:absolute;right:22px;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:12px;color:var(--muted);background:var(--panel);border:1px solid var(--border);padding:4px 9px;border-radius:7px;opacity:0;pointer-events:none;transition:opacity .2s}
#dotnav .dot:hover::after{opacity:1}
@media(max-width:860px){#dotnav{display:none}}

/* sections */
.section{max-width:1100px;margin:0 auto;padding:96px 28px}
.sec-head{margin-bottom:30px}
.sec-num{font-family:var(--mono);font-size:13px;color:var(--teal);letter-spacing:.15em}
.sec-head h2{font-size:34px;margin:6px 0 10px;letter-spacing:-.02em}
.sec-sub{color:var(--muted);font-size:17px;max-width:680px;margin:0}

/* reveal on scroll */
.section .stage,.sec-head{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.section.in .stage,.section.in .sec-head{opacity:1;transform:none}

/* brand */
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{width:38px;height:38px;object-fit:contain;flex:none}
.brand-name{letter-spacing:.14em;font-size:15px;color:var(--muted)}
.brand-name b{color:var(--text)}
.brand.small .brand-logo{width:30px;height:30px}

/* hero */
.hero{text-align:center;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;max-width:860px}
.hero .brand{justify-content:center;margin-bottom:26px}
.hero h1{font-size:68px;margin:0 0 14px;letter-spacing:-.03em;background:linear-gradient(120deg,#fff,#a8c7e8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .tagline{font-size:20px;color:var(--muted);max-width:620px;margin:0 auto 38px}
.hero-cats{display:flex;flex-direction:column;gap:10px;width:100%;max-width:440px}
.hero-cat{display:flex;align-items:center;gap:14px;padding:14px 18px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:left;font-size:15px;transition:all .22s}
.hero-cat:hover{border-color:var(--teal);background:var(--panel2);transform:translateX(4px)}
.hero-cat .num{font-family:var(--mono);color:var(--teal);font-size:13px}
.scroll-hint{margin-top:42px;color:var(--faint);font-size:13px;animation:bob 2s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* generic panel/card */
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}

/* footer */
.site-foot{max-width:1100px;margin:40px auto 0;padding:34px 28px 70px;border-top:1px solid var(--border);color:var(--muted2);font-size:13px;display:flex;flex-direction:column;gap:12px}
.site-foot .brand{justify-content:flex-start}

/* reduced motion */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .section .stage,.sec-head{opacity:1;transform:none}
}

/* ===== demo app frame ===== */
.appframe{display:grid;grid-template-columns:200px 1fr;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg2);box-shadow:var(--shadow)}
.appframe .side{background:var(--bg);border-right:1px solid var(--border);padding:16px 12px;font-size:12px}
.appframe .side .brand{margin-bottom:16px}
.appframe .side .grp{color:var(--faint);letter-spacing:.12em;font-size:10px;margin:14px 6px 6px}
.appframe .side a{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:7px;color:var(--muted);margin-bottom:2px}
.appframe .side a.on{background:var(--teal-ghost);color:var(--teal)}
.appframe .side a .ic{width:14px;text-align:center;opacity:.8}
.appframe .body{padding:20px 22px;min-height:360px}
.appframe .bhead{font-size:13px;color:var(--muted);border-bottom:1px solid var(--border);padding-bottom:10px;margin-bottom:16px}

/* mini progress bar in sidebar */
.pbar{height:5px;background:var(--border);border-radius:3px;margin:6px 6px 0;overflow:hidden}
.pbar i{display:block;height:100%;background:var(--teal);width:0;transition:width 1.2s ease}

/* KPI cards */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.kpi{background:var(--panel);border:1px solid var(--border);border-top:2px solid var(--teal);border-radius:10px;padding:14px}
.kpi:nth-child(3){border-top-color:var(--amber)}.kpi:nth-child(4){border-top-color:var(--purple)}
.kpi .n{font-size:28px;font-weight:700}
.kpi .l{font-size:11px;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}

/* lists & tables */
.row{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:8px}
.row+.row{margin-top:2px}
.row.alt{background:var(--panel)}
.pill{font-size:12px;color:var(--teal);background:var(--teal-ghost);padding:2px 8px;border-radius:20px}
table.demo{width:100%;border-collapse:collapse;font-size:13px}
table.demo th{text-align:left;color:var(--muted);font-weight:600;font-size:11px;letter-spacing:.05em;text-transform:uppercase;padding:8px 10px;border-bottom:1px solid var(--border)}
table.demo td{padding:10px;border-bottom:1px solid var(--border)}
.tag{font-size:11px;padding:2px 8px;border-radius:20px}
.tag.risk{color:var(--amber);background:rgba(224,169,59,.12)}
.tag.ok{color:var(--teal);background:var(--teal-ghost)}

/* AI disclaimer banner */
.ai-note{border-left:3px solid var(--amber);background:rgba(224,169,59,.08);color:#d9c79a;font-size:12.5px;padding:9px 13px;border-radius:0 8px 8px 0;margin:12px 0}

/* module list (training) */
.mod{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:9px;margin-bottom:8px;font-size:13px}
.mod .st{width:20px;text-align:center}
.mod.done{border-color:var(--teal-dim)}
.mod.done .st{color:var(--teal)}
.mod.cur{border-color:var(--border2)}
.mod.lock{opacity:.5}
.mod .mtitle{font-weight:600;flex:1}
.mod .meta{color:var(--muted);font-size:11.5px}

/* ===== section 5: chat + security ===== */
.chatlog{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.bub{max-width:90%;padding:10px 14px;border-radius:12px;font-size:13px;transition:opacity .4s}
.bub.you{align-self:flex-end;background:var(--teal-ghost);border:1px solid var(--teal-dim);color:var(--text)}
.bub.ai{align-self:flex-start;background:var(--panel);border:1px solid var(--border)}
.bub-label{font-size:10px;color:var(--teal);letter-spacing:.08em;margin-bottom:4px;text-transform:uppercase}
.caret{color:var(--teal);animation:blink 1s step-end infinite}
@keyframes blink{50%{opacity:0}}

.secpanel{position:sticky;top:90px}
.secrow{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--border)}
.secrow:last-of-type{border-bottom:none}
.secic{width:30px;height:30px;flex:none;border-radius:8px;background:var(--teal-ghost);display:grid;place-items:center;font-size:15px}
.sectitle{font-size:13px;font-weight:600;margin-bottom:2px}
.secdesc{font-size:12px;color:var(--muted);line-height:1.5}
.secflow{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}
.secflow .fn{font-size:11px;color:var(--muted);background:var(--bg);border:1px solid var(--border);padding:4px 9px;border-radius:7px}
.secflow .fn.lit{color:var(--teal);border-color:var(--teal-dim);background:var(--teal-ghost)}
.secflow .fa{color:var(--faint);font-size:12px}

@media(max-width:860px){
  .appframe{grid-template-columns:1fr}
  .appframe .side{display:none}
  .kpis{grid-template-columns:repeat(2,1fr)}
  #s3 .body > div[style*="grid"],#s5 > div[style*="grid"]{grid-template-columns:1fr!important}
  .secpanel{position:static}
}