:root{
  --bg:#0f1115; --bg-soft:#161922; --card:#181b22; --card-hover:#1f2330;
  --line:#272c39; --text:#e8eaf0; --muted:#9aa3b6; --accent:#7c8cff;
  --accent-2:#54d6c0; --good:#5ad19a; --warn:#f0b65b; --bad:#f07b7b;
  --radius:16px; --maxw:920px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:inherit}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 22px}

/* nav */
.nav{
  position:sticky; top:0; z-index:10; backdrop-filter:blur(10px);
  background:rgba(15,17,21,.78); border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex; align-items:center; gap:28px; height:62px}
.brand{font-weight:700; letter-spacing:.2px; display:flex; align-items:center; gap:9px}
.brand .dot{width:10px;height:10px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.nav a.link{color:var(--muted); text-decoration:none; font-size:15px; transition:color .15s}
.nav a.link:hover,.nav a.link.active{color:var(--text)}
.nav .spacer{flex:1}

/* hero */
.hero{padding:90px 0 64px; text-align:center}
.eyebrow{display:inline-block; font-size:13px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--accent-2); border:1px solid var(--line); padding:6px 14px; border-radius:999px; margin-bottom:26px}
.hero h1{font-size:clamp(34px,6vw,54px); line-height:1.1; margin:0 0 20px; letter-spacing:-.02em}
.hero p.lead{font-size:clamp(17px,2.4vw,20px); color:var(--muted); max-width:640px; margin:0 auto 36px}
.btn{display:inline-flex; align-items:center; gap:10px; text-decoration:none; font-weight:600;
  background:linear-gradient(135deg,var(--accent),#6f7cf0); color:#fff;
  padding:14px 26px; border-radius:12px; transition:transform .12s, box-shadow .2s;
  box-shadow:0 8px 30px rgba(124,140,255,.25)}
.btn:hover{transform:translateY(-2px); box-shadow:0 12px 38px rgba(124,140,255,.38)}
.btn.ghost{background:transparent; border:1px solid var(--line); color:var(--text); box-shadow:none}
.btn.ghost:hover{border-color:var(--accent); background:rgba(124,140,255,.08)}
.cta-row{display:flex; gap:14px; justify-content:center; flex-wrap:wrap}
.cta-note{margin:18px auto 0; max-width:520px; font-size:14px; color:var(--muted)}
.disclaimer{background:rgba(240,182,91,.08); border:1px solid rgba(240,182,91,.28);
  border-left:3px solid var(--warn); border-radius:12px; padding:16px 20px;
  max-width:600px; margin:0 auto 34px; text-align:left;
  font-size:14.5px; color:#d6dae6}
.disclaimer strong{color:#fff}

/* feature row */
.feats{display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin:20px 0 30px}
.feat{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:22px}
.feat h3{margin:0 0 8px; font-size:16px}
.feat p{margin:0; color:var(--muted); font-size:14px}

/* section heading */
.sec-head{padding:64px 0 8px}
.sec-head h2{font-size:30px; margin:0 0 8px; letter-spacing:-.01em}
.sec-head p{color:var(--muted); margin:0}

/* cards grid */
.grid{display:grid; grid-template-columns:repeat(2,1fr); gap:20px; padding:26px 0 70px}
@media(max-width:680px){.grid,.feats{grid-template-columns:1fr}}
.card{
  display:flex; flex-direction:column; text-decoration:none; color:inherit;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; transition:transform .14s, border-color .14s, background .14s;
}
.card:hover{transform:translateY(-4px); border-color:var(--accent); background:var(--card-hover)}
.card .thumb{height:130px; background:
  radial-gradient(120% 120% at 0% 0%, rgba(124,140,255,.35), transparent 55%),
  radial-gradient(120% 120% at 100% 100%, rgba(84,214,192,.30), transparent 55%),
  #11141c; display:flex; align-items:flex-end; padding:16px; position:relative}
.card .big-num{font-size:46px; font-weight:800; letter-spacing:-.03em; color:#fff; opacity:.92;
  text-shadow:0 2px 18px rgba(0,0,0,.4)}
.card .body{padding:18px 20px 22px}
.tag{display:inline-block; font-size:12px; color:var(--accent-2); background:rgba(84,214,192,.1);
  border:1px solid rgba(84,214,192,.25); padding:3px 10px; border-radius:999px; margin-bottom:12px}
.card h3{margin:0 0 8px; font-size:18px; line-height:1.3}
.card p{margin:0 0 14px; color:var(--muted); font-size:14px}
.card .meta{display:flex; align-items:center; justify-content:space-between; font-size:13px; color:var(--muted)}
.card .arrow{color:var(--accent)}

/* article */
.article{padding:40px 0 80px}
.back{display:inline-flex; gap:8px; align-items:center; color:var(--muted); text-decoration:none; font-size:14px; margin-bottom:22px}
.back:hover{color:var(--text)}
.article h1{font-size:clamp(28px,5vw,40px); margin:6px 0 8px; letter-spacing:-.02em; line-height:1.15}
.article .sub{color:var(--muted); margin:0 0 8px}
.article .pills{display:flex; gap:8px; flex-wrap:wrap; margin:14px 0 28px}
.article h2{font-size:23px; margin:42px 0 12px; padding-top:8px}
.article h3{font-size:18px; margin:26px 0 8px}
.article p{color:#d6dae6}
.callout{background:linear-gradient(135deg,rgba(124,140,255,.12),rgba(84,214,192,.08));
  border:1px solid var(--line); border-left:3px solid var(--accent); border-radius:12px;
  padding:18px 20px; margin:22px 0}
.callout strong{color:#fff}
table{width:100%; border-collapse:collapse; margin:18px 0; font-size:14.5px}
th,td{text-align:left; padding:10px 12px; border-bottom:1px solid var(--line)}
th{color:var(--muted); font-weight:600; font-size:13px; text-transform:uppercase; letter-spacing:.04em}
tbody tr:hover{background:rgba(255,255,255,.02)}
td .up{color:var(--good); font-weight:600}
td .down{color:var(--bad); font-weight:600}
ul.clean{padding-left:20px}
ul.clean li{margin:7px 0; color:#d6dae6}
hr{border:none; border-top:1px solid var(--line); margin:34px 0}
.note{font-size:14px; color:var(--muted)}
code{background:#11141c; border:1px solid var(--line); border-radius:6px; padding:1px 6px; font-size:13px}

/* footer */
.footer{border-top:1px solid var(--line); padding:30px 0; color:var(--muted); font-size:13px; text-align:center}