:root{--ink:#0B1220;--ink2:#111a2e;--teal:#0D9488;--lime:#D9F99D;--mist:#F0FDFA;--mut:#94a3b8;--line:rgba(255,255,255,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:17px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#e2e8f0;background:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--lime)}h1,h2,h3{font-family:"Space Grotesk","Inter Tight",Inter,ui-sans-serif,system-ui,sans-serif;letter-spacing:-.025em;line-height:1.1;color:#fff}
.wrap{max-width:1080px;margin:auto;padding:0 22px}
header.top{position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:rgba(11,18,32,.75);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font:800 22px "Space Grotesk",Inter,sans-serif;color:#fff;text-decoration:none;display:flex;align-items:center;gap:10px;letter-spacing:-.03em}
.logo i{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--teal),var(--lime));display:inline-block}
.logo b{color:var(--lime)}nav a{color:#cbd5e1;text-decoration:none;font-size:15px;margin-left:22px}nav a:hover{color:#fff}
.hero{padding:84px 0 46px;background:radial-gradient(800px 380px at 80% -10%,rgba(13,148,136,.35),transparent),radial-gradient(600px 300px at 0% 0%,rgba(217,249,157,.12),transparent)}
.hero h1{font-size:clamp(38px,6.4vw,72px);max-width:880px;margin:0 0 18px}.hero h1 em{font-style:normal;color:var(--lime)}
.hero p.lead{font-size:20px;color:#cbd5e1;max-width:680px;margin:0 0 26px}
.pill{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--lime);margin-bottom:18px;background:rgba(217,249,157,.06)}
.btn{display:inline-block;background:var(--lime);color:var(--ink);font-weight:700;padding:14px 24px;border-radius:14px;text-decoration:none;margin-right:10px}
.btn.ghost{background:transparent;color:#fff;border:1px solid var(--line)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin:26px 0}
.card{background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:22px;padding:26px}
.card h3{margin:0 0 8px;font-size:22px}.card p{color:#cbd5e1;margin:0 0 12px}.card a.more{font-weight:600;text-decoration:none}
section{padding:36px 0}h2{font-size:clamp(28px,4vw,40px);margin:0 0 14px}
.tool{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0}@media(max-width:780px){.tool{grid-template-columns:1fr}nav a{margin-left:12px}}
label{display:block;font-size:13px;color:var(--mut);margin:14px 0 5px}
input,select{width:100%;padding:13px;border-radius:12px;border:1px solid var(--line);background:#0a101d;color:#fff;font-size:17px}
input:focus,select:focus{outline:2px solid var(--teal)}
.out .big{font:800 clamp(44px,7vw,68px)/1 "Space Grotesk",Inter,sans-serif;color:var(--lime);margin:6px 0 16px;letter-spacing:-.04em}
.row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);font-size:15px}.row span:last-child{color:#fff;font-weight:600}
.note{font-size:13px;color:var(--mut);margin-top:12px}
.answer{border-left:4px solid var(--lime);padding:6px 0 6px 18px;font-size:19px;color:#e2e8f0;max-width:780px}
.prose{max-width:760px}.prose p,.prose li{color:#cbd5e1}.prose code{background:#0a101d;padding:2px 8px;border-radius:6px;color:var(--lime)}
details{border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin:10px 0;background:rgba(255,255,255,.03)}summary{cursor:pointer;font-weight:600;color:#fff}
.crumbs{font-size:13px;color:var(--mut);padding-top:26px}.crumbs a{color:var(--mut)}
.pick{margin-top:18px;padding:16px;border-radius:14px;background:rgba(13,148,136,.15);border:1px solid rgba(13,148,136,.5);font-size:14px}.pick small{display:block;color:var(--mut);margin-top:4px}
.meta{font-size:13px;color:var(--mut)}
footer{border-top:1px solid var(--line);margin-top:50px;padding:34px 0;color:var(--mut);font-size:14px}footer a{color:#cbd5e1;margin-right:16px}
table{border-collapse:collapse;width:100%;margin:14px 0}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left}th{color:var(--lime)}