:root{--bg:#fff;--fg:#14181f;--muted:#5b6675;--line:#e3e8ef;--accent:#e8552a}@media (prefers-color-scheme:dark){:root{--bg:#0f1216;--fg:#eef2f7;--muted:#97a3b3;--line:#232a33}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);word-break:keep-all;overflow-wrap:anywhere;margin:0;font:16px/1.7 -apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard,Segoe UI,Roboto,sans-serif}main{max-width:44rem;margin:0 auto;padding:3rem 1.25rem 5rem}h1{letter-spacing:-.02em;margin:0 0 .5rem;font-size:1.9rem;line-height:1.3}h2{letter-spacing:-.01em;margin:2.25rem 0 .5rem;font-size:1.15rem}p,li{color:var(--fg)}.muted{color:var(--muted)}a{color:var(--accent)}ul{padding-left:1.15rem}hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}nav{flex-wrap:wrap;gap:1.25rem;font-size:.9rem;display:flex}.updated{color:var(--muted);margin-top:0;font-size:.85rem}.lead{margin:0 0 1rem;font-size:1.1rem}.small{font-size:.85rem}.button{background:var(--accent);color:#fff;border-radius:12px;justify-content:center;align-items:center;min-height:48px;padding:0 1.25rem;font-weight:700;text-decoration:none;display:inline-flex}.yt-mark{border:1px solid var(--line);background:#fff;border-radius:10px;align-items:center;padding:8px 12px;display:inline-flex}.yt-mark img{width:auto;height:20px;display:block}ul.links{padding-left:1.15rem}ol{padding-left:1.3rem}