:root{--bg:#0b1214;--card:#121c1f;--text:#e8f0f1;--muted:#9bb0b3;--accent:#1ed1bc;--line:#223034}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif}
a{color:var(--accent);text-underline-offset:3px}a:hover{color:#5cf0dd}
a:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:var(--accent);color:#06201c;padding:8px 12px;border-radius:6px;z-index:9}
header,main,footer{max-width:42rem;margin:0 auto;padding:0 20px}
header{padding-top:28px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
header a.brand{color:var(--text);font-weight:700;text-decoration:none}
header a.brand span{color:var(--accent)}
nav a{margin-left:16px;color:var(--muted);text-decoration:none}nav a:hover,nav a[aria-current]{color:var(--accent)}
main{padding-top:36px;padding-bottom:48px}
h1{font-size:2.1rem;line-height:1.2;margin:0 0 .4em}
h2{font-size:1.3rem;margin:2em 0 .4em}h3{font-size:1.05rem;margin:1.4em 0 .2em}
p,li{color:#cfdcde}.muted{color:var(--muted);font-size:.95rem}
ul{padding-left:1.2em}
.hero{text-align:center;padding:12vh 0 6vh}
.hero h1{font-size:clamp(2.2rem,8vw,3.4rem)}.hero h1 span{color:var(--accent)}
.hero p{font-size:1.2rem;color:var(--muted);margin:0 auto 2rem;max-width:30rem}
.links{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.links a{border:1px solid var(--line);background:var(--card);padding:10px 18px;border-radius:999px;text-decoration:none;color:var(--text)}
.links a:hover{border-color:var(--accent);color:var(--accent)}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0}
summary{cursor:pointer;font-weight:600}summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
footer{border-top:1px solid var(--line);padding-top:20px;padding-bottom:40px;color:var(--muted);font-size:.9rem}
@media (prefers-reduced-motion:no-preference){a{transition:color .15s}}