:root{--bg:#fff;--fg:#1c1c1e;--muted:#6b6b70;--brand:#1B5E20;--soft:#F1F8F2;--line:#e4e4e7}
@media(prefers-color-scheme:dark){:root{--bg:#121212;--fg:#f2f2f3;--muted:#a1a1a8;--brand:#6fcf7a;--soft:#1b2a1d;--line:#2c2c2f}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;height:60px}
header a.logo{font-weight:800;color:var(--brand);text-decoration:none;font-size:18px}
nav a{margin-left:16px;color:var(--muted);text-decoration:none;font-size:14px}
h1{font-size:30px;line-height:1.3;margin:40px 0 8px}
h2{font-size:20px;margin:32px 0 8px}
p,li{color:var(--fg)}
.muted{color:var(--muted);font-size:14px}
.hero{padding:24px 0 8px}
.hero p{font-size:18px;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin:24px 0}
.card{background:var(--soft);border-radius:14px;padding:18px}
.card b{display:block;margin-bottom:4px}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 20px;border-radius:10px;text-decoration:none;font-weight:700}
@media(prefers-color-scheme:dark){.btn{color:#0b1f0d}}
table{border-collapse:collapse;width:100%;font-size:14px;margin:8px 0}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--soft)}
.todo{background:#FFF3CD;color:#5c4400;padding:1px 4px;border-radius:4px}
footer{border-top:1px solid var(--line);margin-top:56px;padding:24px 0;color:var(--muted);font-size:13px}
footer a{color:var(--muted)}