/* Neurons Utopia theme — navy + gold + cyan */
:root{--navy:#101030;--indigo:#23235e;--gold:#fcb46c;--cyan:#84e4fc;--txt:#f2f0ff;--mut:#b9b8d9;--card:rgba(255,255,255,.06);--line:rgba(255,255,255,.14)}
*{box-sizing:border-box}body{margin:0;font:16px/1.65 -apple-system,Helvetica,Arial,sans-serif;color:var(--txt);
background:radial-gradient(1100px 500px at 85% -5%,rgba(132,228,252,.16),transparent 60%),radial-gradient(900px 480px at 8% 4%,rgba(252,180,108,.18),transparent 60%),linear-gradient(180deg,#181848 0%,#101030 46%,#0a0a20 100%);min-height:100vh}
.wrap{max-width:980px;margin:0 auto;padding:0 20px}
header.top{padding:22px 0}
header.top .wrap{display:flex;align-items:center;gap:14px}
header.top img{width:52px;height:52px;border-radius:14px;box-shadow:0 4px 22px rgba(252,180,108,.35)}
header.top h1{font-size:22px;margin:0}
header.top h1 span{background:linear-gradient(90deg,var(--gold),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
nav.top{margin-left:auto;display:flex;gap:4px;font-size:14px;background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:99px;padding:4px}
nav.top a{color:var(--mut);text-decoration:none;padding:7px 18px;border-radius:99px;font-weight:600}
nav.top a:hover{color:#fff}
nav.top a.on{background:linear-gradient(90deg,var(--gold),#ffcf87);color:#23160a}
header.top{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:rgba(16,16,48,.82)}
.hero{text-align:center;padding:64px 20px 46px}
.hero .kicker{display:inline-block;font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--cyan);border:1px solid var(--line);border-radius:99px;padding:6px 16px;margin-bottom:18px;background:rgba(132,228,252,.08)}
.hero h2{font-size:42px;line-height:1.15;margin:0 0 14px}
.hero h2 em{font-style:normal;background:linear-gradient(90deg,var(--gold),#ffd9a0,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--mut);max-width:640px;margin:0 auto 26px;font-size:17px}
.btn{display:inline-block;background:linear-gradient(90deg,var(--gold),#ffcf87);color:#23160a;border-radius:10px;padding:12px 26px;font-weight:800;text-decoration:none;margin:4px;box-shadow:0 6px 26px rgba(252,180,108,.35)}
.btn.ghost{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--txt);box-shadow:none}
section{padding:30px 0}
h3{font-size:24px;margin:0 0 6px}
.sub{color:var(--mut);margin:0 0 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;backdrop-filter:blur(4px)}
.card.c1{border-top:3px solid var(--gold)}.card.c2{border-top:3px solid var(--cyan)}
.card.c3{border-top:3px solid #b48cf2}.card.c4{border-top:3px solid #7be3a8}
.card h4{margin:0 0 6px;font-size:16px}
.card p{margin:0;color:var(--mut);font-size:14px}
.vids{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.vid iframe{width:100%;aspect-ratio:9/16;border:1px solid var(--line);border-radius:14px;background:#000}
.vid p{font-size:13px;color:var(--mut);margin:8px 0 0}
ol.steps{padding-left:20px;color:var(--mut)}
ol.steps b{color:var(--txt)}
.prose h2{font-size:20px;margin:30px 0 8px;color:#fff}
.prose p,.prose li{color:#d7d6f2}
.prose a{color:var(--gold)}
footer{border-top:1px solid var(--line);margin-top:34px;padding:24px 0 46px;color:var(--mut);font-size:14px}
footer nav{display:flex;gap:20px;margin:10px 0 0;flex-wrap:wrap}
footer a{color:var(--txt)}
.mut{color:var(--mut)}
@media(max-width:640px){.hero h2{font-size:30px}}

.social{display:flex;gap:14px;justify-content:center;margin:22px 0 4px}
.social a{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.07);border:1px solid var(--line);transition:transform .15s}
.social a:hover{transform:scale(1.1)}
.social svg{width:24px;height:24px;fill:#fff}
.social a.yt{background:#c00;border-color:#c00}
.social a.fb{background:#1877f2;border-color:#1877f2}
.social a.tt{background:#000;border-color:#333}
.social a.tw{background:#000;border-color:#333}

hr.sep{border:0;border-top:1px solid var(--line);margin:26px 0 30px;position:relative}
hr.sep::after{content:"";position:absolute;left:50%;top:-4px;width:120px;height:7px;transform:translateX(-50%);border-radius:99px;background:linear-gradient(90deg,var(--gold),var(--cyan))}
section.wrap{padding-top:34px}