:root{
  --bg:#0f1117; --panel:#171a23; --panel2:#1e2230; --line:#2a2f40;
  --text:#e9ebf2; --muted:#a4a9ba; --accent:#4f8cff; --accent2:#22c58b; --warn:#ffb547;
  --radius:12px; --max:780px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
a:hover{color:#7aa8ff}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.wide{max-width:1040px}

/* header */
.site-header{border-bottom:1px solid var(--line);background:rgba(15,17,23,.92);position:sticky;top:0;z-index:10;backdrop-filter:blur(8px)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:800;letter-spacing:.02em;font-size:19px}
.logo-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-size:15px;color:#0f1117;font-weight:900}
.nav a{color:var(--muted);text-decoration:none;margin-left:20px;font-size:15px}
.nav a:hover{color:var(--text)}

/* hero */
.hero{padding:64px 0 40px}
.hero h1{font-size:44px;line-height:1.1;margin:0 0 14px;letter-spacing:-.02em}
.hero p{color:var(--muted);font-size:19px;margin:0;max-width:600px}
.kicker{display:inline-block;color:var(--accent2);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;padding-bottom:64px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-decoration:none;color:var(--text);display:block;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px);color:var(--text)}
.card h3{margin:6px 0 8px;font-size:21px;line-height:1.25}
.card p{margin:0;color:var(--muted);font-size:15px}
.tag{font-size:12px;color:var(--accent2);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.section-title{font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;margin:0 0 16px}

/* article */
article{padding:44px 0 64px}
article h1{font-size:38px;line-height:1.15;margin:0 0 12px;letter-spacing:-.02em}
.meta{color:var(--muted);font-size:14px;margin-bottom:24px}
.disclosure{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-size:14px;color:var(--muted);margin-bottom:28px}
article h2{font-size:27px;margin:48px 0 12px;line-height:1.25;padding-top:8px;letter-spacing:-.01em}
article h3{font-size:20px;margin:28px 0 8px}
article p,article li{color:#d6d9e3}
article ul,article ol{padding-left:22px}
article li{margin:6px 0}
.lead{font-size:20px;color:var(--text)}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin:28px 0}
.toc strong{display:block;margin-bottom:6px}
.toc ol{margin:0;padding-left:20px}
.toc a{color:var(--text);text-decoration:none}
.toc a:hover{color:var(--accent)}
.callout{border-left:4px solid var(--accent2);background:var(--panel);padding:14px 18px;border-radius:0 10px 10px 0;margin:22px 0}
.callout.warn{border-color:var(--warn)}
.callout p{margin:0}
.facts{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.facts th,.facts td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.facts th{color:var(--muted);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.06em}
.table-scroll{overflow-x:auto}

/* product picks */
.pick{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin:14px 0;display:flex;gap:16px;align-items:flex-start;justify-content:space-between}
.pick h4{margin:0 0 4px;font-size:17px}
.pick p{margin:0;font-size:15px;color:var(--muted)}
.pick .who{color:var(--accent2);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.btn{display:inline-block;white-space:nowrap;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;font-size:14px;padding:9px 14px;border-radius:8px;flex-shrink:0}
.btn:hover{background:#3d78ec;color:#fff}

.faq details{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:600}
.faq details p{margin:10px 0 0}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
.site-footer p{margin:4px 0}

@media (max-width:640px){
  body{font-size:16px}
  .hero{padding:40px 0 28px}
  .hero h1{font-size:32px}
  article h1{font-size:29px}
  article h2{font-size:23px}
  .pick{flex-direction:column}
  .nav a{margin-left:14px}
}