:root{--bg:#b9bbbf;--ink:#1d2024;--muted:#50535a;--panel:#cfd1d4;--accent:#1f3a8a;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#1c1d20;--ink:#e6e7ea;--muted:#8f929a;--panel:#2b2c30;--accent:#7ea2ff}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}
main{max-width:680px;margin:0 auto;padding:48px 16px 64px}
a{color:var(--accent)}
h1{font-size:32px;line-height:1.2;margin:0 0 8px}
h2{font-size:20px;margin:36px 0 8px}
p,li{margin:0 0 12px}
.muted{color:var(--muted)}
.app{display:flex;gap:20px;align-items:center;margin-bottom:24px}
.app img{width:96px;height:96px;border-radius:22px;flex:none}
.card{background:var(--panel);border-radius:14px;padding:16px 20px;margin:16px 0}
nav{font-size:15px;margin-bottom:32px}
footer{margin-top:48px;font-size:14px;color:var(--muted)}