:root{--bg:#fff;--fg:#222;--muted:#666;--line:#e5e5e5;--link:#1a4f8b}
@media (prefers-color-scheme: dark){:root{--bg:#161616;--fg:#ddd;--muted:#999;--line:#2c2c2c;--link:#8ab4f8}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 Georgia,"Times New Roman",serif}
main{max-width:640px;margin:0 auto;padding:56px 20px 40px}
h1{font-size:1.9rem;font-weight:normal;margin:0 0 4px}
h2{font-size:1.15rem;font-weight:normal;margin:34px 0 8px}
.sub{color:var(--muted);margin:0 0 28px}
p{margin:0 0 12px}
a{color:var(--link)}
table{width:100%;border-collapse:collapse;font-size:.92rem;line-height:1.45;margin-top:8px}
th{text-align:left;font-weight:normal;color:var(--muted);border-bottom:1px solid var(--line);padding:6px 10px 6px 0}
td{vertical-align:top;border-bottom:1px solid var(--line);padding:9px 10px 9px 0}
td:first-child{width:30%}td:nth-child(2){width:20%;color:var(--muted)}
tr:last-child td{border-bottom:0}
@media (max-width:560px){thead{display:none}table,tbody,tr,td{display:block;width:auto!important}tr{border-bottom:1px solid var(--line);padding:8px 0}td{border:0;padding:1px 0}td:first-child{font-weight:bold}}
footer{max-width:640px;margin:0 auto;padding:12px 20px 40px;color:var(--muted);font-size:.85rem}