:root{--bg:oklch(0.13 0 0);--panel:oklch(0.17 0 0);--line:oklch(0.29 0 0);--ink:oklch(0.97 0 0);--ink2:oklch(0.8 0 0);--accent:oklch(0.74 0.15 288)}
@media (prefers-color-scheme:light){:root{--bg:oklch(0.98 0 0);--panel:oklch(1 0 0);--line:oklch(0.9 0 0);--ink:oklch(0.2 0 0);--ink2:oklch(0.38 0 0);--accent:oklch(0.5 0.21 287)}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
header{display:flex;align-items:center;gap:12px;max-width:820px;margin:0 auto;padding:24px 16px}
.mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,oklch(0.62 0.2 288),oklch(0.5 0.21 300));color:#fff}
.mark svg{width:20px;height:20px}header b{font-size:18px}nav{margin-left:auto;display:flex;gap:16px;font-size:14px}
a{color:var(--accent)}nav a{color:var(--ink2);text-decoration:none}nav a:hover{color:var(--ink)}
main{max-width:820px;margin:0 auto;padding:8px 16px 64px}
article{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:32px clamp(18px,4vw,40px)}
h1{font-size:28px;line-height:1.25;margin:0 0 4px}h2{font-size:19px;margin:28px 0 8px}.muted{color:var(--ink2);font-size:14px}
li{margin:4px 0}footer{max-width:820px;margin:0 auto;padding:0 16px 40px;color:var(--ink2);font-size:13px}