:root{color-scheme:light dark;--bg:light-dark(#edf3f7,#111b25);--surface:light-dark(#fff,#1c2833);--text:light-dark(#253543,#edf3f8);--muted:light-dark(#526674,#adc0cf);--line:light-dark(#dce5ec,#3a4a58);--action:light-dark(#0875a5,#7aceef);--button-text:light-dark(#fff,#111b25);font-family:"Segoe UI",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.55;font-size:16px}
*{box-sizing:border-box}body{margin:0;padding:64px 24px}main{max-width:640px;margin:auto;padding:36px 40px;background:var(--surface);border:1px solid var(--line);border-radius:12px}header{font-size:17px;font-weight:600;padding-bottom:24px;border-bottom:1px solid var(--line)}h1{font-size:30px;line-height:1.2;font-weight:650;margin:28px 0 20px;text-wrap:balance}p{margin:16px 0}ul{padding-left:24px;margin:20px 0}li{padding-left:4px;margin:10px 0}.note{padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}button{display:block;width:100%;margin:24px 0 16px;border:0;border-radius:8px;padding:14px 20px;background:var(--action);color:var(--button-text);font:600 16px/1.4 "Segoe UI",Arial,sans-serif;cursor:pointer;min-height:48px}button:hover{filter:brightness(.93)}button:focus-visible{outline:3px solid var(--action);outline-offset:4px}.secondary,footer{color:var(--muted);font-size:14px}footer{margin-top:28px;border-top:1px solid var(--line);padding-top:20px}::selection{background:var(--action);color:var(--button-text)}@media(max-width:600px){body{padding:20px 12px}main{padding:24px 20px}h1{font-size:26px}header{padding-bottom:20px}}@media(max-width:340px){main{padding:20px 16px}button{padding:14px 12px}}