:root{--bg:#F2F2F7;--card:#fff;--label:#000;--label2:rgba(60,60,67,.6);--tint:#007AFF}
@media (prefers-color-scheme:dark){:root{--bg:#000;--card:#1C1C1E;--label:#fff;--label2:rgba(235,235,245,.6);--tint:#0A84FF}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--label);font:17px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",sans-serif;-webkit-font-smoothing:antialiased}
main{max-width:700px;margin:0 auto;padding:48px 16px 64px}
header{display:flex;align-items:center;gap:14px;margin-bottom:24px}header img{width:64px;height:64px;border-radius:15px}
h1{font-size:34px;margin:0;font-weight:700}p.lead{color:var(--label2);margin:0 0 24px}
.card{background:var(--card);border-radius:20px;padding:16px;margin-bottom:16px}.card h2{font-size:17px;margin:0 0 6px}.card p{margin:0;color:var(--label2);font-size:15px}
a{color:var(--tint);text-decoration:none}nav{display:flex;gap:16px;margin-bottom:24px;font-weight:500}footer{color:var(--label2);font-size:13px;text-align:center;margin-top:24px}