/* Theme: neon — dark developer/tech look (jpegtojpg.in) */
:root{
  --bg:#0b0e17; --panel:#141a28; --panel2:#1b2333; --line:#26304a;
  --txt:#cdd6f4; --dim:#8a96b3; --cyan:#22d3ee; --mag:#f472b6; --grn:#4ade80;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
    radial-gradient(900px 500px at 80% -10%,rgba(34,211,238,.10),transparent),
    radial-gradient(700px 500px at 0% 0%,rgba(244,114,182,.08),transparent),
    var(--bg);
  color:var(--txt);
  font:16px/1.75 ui-sans-serif,system-ui,"Segoe UI",Roboto,sans-serif;
}
.mono{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
code{font-family:ui-monospace,Menlo,Consolas,monospace;background:#0f1626;color:var(--cyan);
  padding:2px 7px;border-radius:5px;border:1px solid var(--line);font-size:.9em}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#67e8f9}

.wrap{max-width:880px;margin:0 auto;padding:0 22px}

/* nav */
.bar{position:sticky;top:0;z-index:5;background:rgba(11,14,23,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-family:ui-monospace,Menlo,monospace;font-weight:700;font-size:1.15rem;letter-spacing:-.5px}
.brand .a{color:var(--mag)}.brand .b{color:var(--cyan)}
.menu a{margin-left:20px;color:var(--dim);font-size:.92rem}
.menu a:hover,.menu a.active{color:var(--txt);text-shadow:0 0 12px rgba(34,211,238,.6)}

/* hero */
.hero{padding:70px 0 40px;text-align:center}
.tag{display:inline-block;font-family:ui-monospace,monospace;font-size:.78rem;color:var(--grn);
  border:1px solid var(--line);background:#0f1626;padding:5px 12px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:3rem;margin:0 0 16px;line-height:1.1;
  background:linear-gradient(90deg,var(--mag),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--dim);font-size:1.15rem;max-width:620px;margin:0 auto}
.btn{display:inline-block;margin-top:26px;font-weight:600;color:#06121a;
  background:linear-gradient(90deg,var(--cyan),var(--grn));padding:13px 26px;border-radius:8px;
  box-shadow:0 0 30px rgba(34,211,238,.35)}
.btn:hover{color:#06121a;filter:brightness(1.08)}

/* crumb */
.crumb{color:var(--dim);font-size:.82rem;font-family:ui-monospace,monospace;padding:18px 0 0}
.crumb a{color:var(--dim)}

/* content cards */
main{padding:26px 0 10px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:32px 34px;margin-bottom:22px}
.card h2{font-size:1.55rem;margin:30px 0 10px;color:#fff}
.card h2:first-child{margin-top:0}
.card h2::before{content:"#";color:var(--mag);margin-right:10px;font-family:ui-monospace,monospace}
.card h3{font-size:1.15rem;margin:22px 0 6px;color:var(--cyan)}
.card p,.card li{color:var(--txt)}
.card ul,.card ol{padding-left:20px}.card li{margin:7px 0}
.lead-note{color:var(--dim)}

.tldr{background:linear-gradient(180deg,#101a2c,#0f1626);border:1px solid var(--line);
  border-left:3px solid var(--grn);border-radius:0 10px 10px 0;padding:16px 20px;margin:20px 0}
.tldr b{color:var(--grn)}

/* fact row */
.facts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:20px 0}
.fact{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.fact .k{font-family:ui-monospace,monospace;font-size:.75rem;color:var(--mag);text-transform:uppercase;letter-spacing:.08em}
.fact .v{font-size:1.05rem;margin-top:4px}

/* terminal block */
.term{background:#070a12;border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:18px 0}
.term .top{background:#0f1626;padding:9px 14px;font-family:ui-monospace,monospace;font-size:.75rem;color:var(--dim);border-bottom:1px solid var(--line)}
.term pre{margin:0;padding:16px 18px;font-family:ui-monospace,Menlo,monospace;font-size:.88rem;color:var(--grn);overflow-x:auto}
.term .c{color:var(--dim)}

/* faq */
.faq details{border:1px solid var(--line);border-radius:10px;background:var(--panel2);margin:12px 0;padding:2px 18px}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;color:#fff}
.faq details[open] summary{color:var(--cyan)}
.faq p{color:var(--dim);margin:0 0 14px}

footer{border-top:1px solid var(--line);margin-top:30px;padding:30px 0;color:var(--dim);font-size:.88rem}
.move{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin-bottom:16px}
.move b{color:var(--cyan)}

@media(max-width:640px){.hero h1{font-size:2.1rem}.facts{grid-template-columns:1fr}.card{padding:24px 20px}}