/* CORTEX — neural fintech-brain */
:root{
  --bg:#05070d; --bg2:#090d17; --panel:#0c1220; --line:#1a2440;
  --blue:#2e7cff; --cyan:#3ee6ff; --ink:#e8eefc; --dim:#7686a8; --dim2:#44507000;
  --good:#38e08c; --bad:#ff5d6c; --warn:#ffc44d;
  --mono:'JetBrains Mono','Cascadia Code',Consolas,monospace;
  --sans:'Inter',system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.6;overflow-x:hidden}
a{color:var(--cyan);text-decoration:none}
::selection{background:var(--blue);color:#fff}

/* synapse background */
.synapse{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55}
.wrap{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:0 24px}

/* header */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(5,7,13,.72);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;height:62px;max-width:1100px;margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.12em;color:var(--ink)}
.logo svg{filter:drop-shadow(0 0 8px rgba(62,230,255,.6))}
.nav .links{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav .links a{color:var(--dim);font-size:14px;font-weight:600;transition:color .2s}
.nav .links a:hover{color:var(--cyan)}
.btn{display:inline-block;padding:11px 26px;border-radius:10px;font-weight:700;font-size:14px;letter-spacing:.04em;border:1px solid var(--blue);color:#fff;background:linear-gradient(135deg,var(--blue),#1a4fd6);box-shadow:0 0 24px rgba(46,124,255,.35);transition:.2s;cursor:pointer}
.btn:hover{box-shadow:0 0 40px rgba(62,230,255,.5);transform:translateY(-1px)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--dim);box-shadow:none}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* hero */
.hero{padding:110px 0 70px;text-align:center}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.3em;color:var(--cyan);text-transform:uppercase;margin-bottom:18px}
h1{font-size:clamp(40px,7vw,72px);line-height:1.05;font-weight:800;letter-spacing:-.02em}
h1 .grad{background:linear-gradient(92deg,var(--blue),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{max-width:640px;margin:22px auto 0;color:var(--dim);font-size:18px}
.cta{margin-top:36px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ticker strip */
.strip{display:flex;gap:34px;justify-content:center;flex-wrap:wrap;margin:56px auto 0;padding:16px 22px;border:1px solid var(--line);border-radius:14px;background:rgba(12,18,32,.6);max-width:860px;font-family:var(--mono);font-size:13px}
.strip .t{color:var(--dim)} .strip b{color:var(--ink);margin-left:6px}
.strip .up{color:var(--good)} .strip .dn{color:var(--bad)}

/* sections */
section{padding:70px 0}
h2{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.lede{color:var(--dim);max-width:620px;margin-bottom:40px}
.grid{display:grid;gap:18px}
.grid.c4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid.c2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.card{background:linear-gradient(180deg,rgba(15,22,40,.9),rgba(9,13,23,.9));border:1px solid var(--line);border-radius:16px;padding:26px;transition:.25s}
.card:hover{border-color:rgba(62,230,255,.45);box-shadow:0 8px 40px rgba(46,124,255,.12);transform:translateY(-2px)}
.card .ico{font-size:26px;margin-bottom:14px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--dim);font-size:14px}
.pill{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.15em;color:var(--cyan);border:1px solid rgba(62,230,255,.35);border-radius:99px;padding:4px 12px;margin-bottom:14px}

/* terminal demo */
.term{background:#070b14;border:1px solid var(--line);border-radius:16px;overflow:hidden;font-family:var(--mono);font-size:13.5px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.term .bar{display:flex;gap:7px;padding:12px 16px;border-bottom:1px solid var(--line);background:#0a0f1c}
.term .dot{width:11px;height:11px;border-radius:50%;background:#22304f}
.term .bd{padding:22px;min-height:180px}
.term .u{color:var(--ink)} .term .u::before{content:'you ▸ ';color:var(--dim)}
.term .a{color:var(--cyan)} .term .a::before{content:'cortex ▸ ';color:var(--blue)}
.term .ok{color:var(--good)}

footer{border-top:1px solid var(--line);padding:36px 0;color:var(--dim);font-size:13px;text-align:center}
footer .x{margin-bottom:10px}
.disc{max-width:760px;margin:10px auto 0;font-size:11.5px;color:#54628a}