:root{
  --bg:#070a11; --bg2:#0c111b; --card:#111828; --card2:#0f1521;
  --border:rgba(255,255,255,.08); --border2:rgba(255,255,255,.14);
  --fg:#eef2f8; --muted:#9aa7bd; --muted2:#6b7689;
  --accent:#3b6ef0; --accent2:#5b8def; --accent-deep:#2457db;
  --grad:linear-gradient(135deg,#5b8def 0%,#2457db 100%);
  --disp:"Space Grotesk",-apple-system,BlinkMacSystemFont,sans-serif;
  --body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--body);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
summary,.btn,.nav a,.brand,.gcard,.cmp,.related a{-webkit-user-select:none;user-select:none}
.wrap{max-width:760px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}
.wrap-wide{max-width:1140px}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--disp);font-weight:700;line-height:1.15;text-wrap:balance;letter-spacing:-.02em;color:var(--fg)}

/* header */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(7,10,17,.72);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:62px;max-width:1140px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}
.brand{display:flex;align-items:center;gap:.55rem;font-family:var(--disp);font-weight:700;font-size:1.1rem}
.brand img{width:28px;height:28px;border-radius:7px}
.nav .btn{font-family:var(--disp);font-weight:600;font-size:.82rem;padding:.55rem 1rem;border-radius:10px;background:var(--grad);color:#fff}
.nav .btn:hover{text-decoration:none}

/* article */
article{padding:46px 0 60px}
.crumb{font-size:.82rem;color:var(--muted2);margin-bottom:1.4rem;font-family:var(--disp);letter-spacing:.04em}
.crumb a{color:var(--muted)}
.eyebrow{font-family:var(--disp);font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent2)}
article h1{font-size:clamp(1.9rem,4.6vw,2.7rem);margin:.7rem 0 1rem}
.meta{color:var(--muted2);font-size:.86rem;margin-bottom:2.2rem;padding-bottom:1.6rem;border-bottom:1px solid var(--border)}
article h2{font-size:1.5rem;margin:2.4rem 0 .9rem}
article h3{font-size:1.15rem;margin:1.8rem 0 .6rem}
article p{color:#cdd6e5;margin-bottom:1.1rem}
article ul,article ol{color:#cdd6e5;margin:0 0 1.2rem 1.3rem}
article li{margin-bottom:.5rem}
article strong{color:var(--fg)}
.lead{font-size:1.18rem;color:var(--muted)!important;margin-bottom:1.8rem}

/* callout / CTA box */
.cta-box{background:linear-gradient(135deg,#101728,#0c1120);border:1px solid var(--border2);border-radius:16px;padding:26px;margin:2.4rem 0;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.cta-box img{width:52px;height:52px;border-radius:12px}
.cta-box .t{flex:1;min-width:220px}
.cta-box h3{font-size:1.1rem;margin-bottom:.3rem}
.cta-box p{font-size:.92rem;color:var(--muted);margin:0}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--disp);font-weight:600;font-size:.9rem;padding:.75rem 1.3rem;border-radius:11px;background:var(--grad);color:#fff;white-space:nowrap}
.btn:hover{text-decoration:none}
.note{background:var(--card2);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;padding:14px 18px;margin:1.6rem 0;color:var(--muted);font-size:.93rem}

/* comparison table */
.ctable{width:100%;border-collapse:collapse;margin:1.6rem 0;font-size:.92rem;overflow:hidden;border-radius:12px;border:1px solid var(--border)}
.ctable th,.ctable td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
.ctable th{background:var(--card);font-family:var(--disp);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.ctable td{color:#cdd6e5}
.ctable tr:last-child td{border-bottom:none}
.ctable .yes{color:#7ee0a0}.ctable .no{color:#e08a8a}
.tbl-scroll{overflow-x:auto}

/* related */
.related{border-top:1px solid var(--border);margin-top:3rem;padding-top:2rem}
.related h3{font-size:1rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:1rem}
.related a{display:block;padding:12px 0;border-bottom:1px solid var(--border);color:var(--fg)}
.related a:hover{color:var(--accent2);text-decoration:none}

/* guides index */
.ghero{padding:60px 0 20px;text-align:center}
.ghero h1{font-size:clamp(2rem,5vw,3rem);text-transform:uppercase}
.ghero p{color:var(--muted);max-width:34rem;margin:1rem auto 0}
.glist{padding:30px 0 70px}
.gcat{font-family:var(--disp);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent2);margin:2.4rem 0 1rem}
.gcard{display:block;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px;margin-bottom:14px;transition:border-color .2s,transform .2s}
.gcard:hover{border-color:var(--border2);transform:translateY(-2px);text-decoration:none}
.gcard h3{font-size:1.15rem;margin-bottom:.35rem;color:var(--fg)}
.gcard p{color:var(--muted);font-size:.92rem}

/* footer */
footer{border-top:1px solid var(--border);padding:40px 0;background:var(--bg2);text-align:center}
footer .brand{justify-content:center;margin-bottom:.8rem}
footer small{color:var(--muted2);font-size:.82rem}