:root{--bg:#fbf7f1;--ink:#24203a;--muted:#6b6680;--accent:#e5004b;--card:#ffffff}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#17142a;--ink:#f3eefc;--muted:#b3acc9;--card:#221e3a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:40px 20px 80px}h1{font-size:2rem;margin:.2em 0}h2{font-size:1.2rem;margin-top:2em}
.muted{color:var(--muted)}a{color:var(--accent)}header{display:flex;align-items:center;gap:12px}
header b{font-size:1.3rem}.card{background:var(--card);border-radius:16px;padding:20px;margin:16px 0}
ul{padding-left:1.2em}footer{margin-top:48px;font-size:.9rem}