:root{
  --bg:#fcfcfb; --card:#f4f3ef; --ink:#14140f; --ink2:#55544e; --ink3:#8a8880;
  --line:rgba(20,20,15,.12); --accent:#0f6e56; --accent-bg:#e1f5ee; --accent-ink:#0f6e56;
  --radius:10px; --max:720px;
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#141412; --card:#1f1f1c; --ink:#f5f4ef; --ink2:#b8b6ad; --ink3:#8a8880;
    --line:rgba(255,255,255,.14); --accent:#5dcaa5; --accent-bg:#0f2f26; --accent-ink:#9fe1cb; }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:400 17px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--bg);padding:8px 12px;z-index:10;border:1px solid var(--line);border-radius:var(--radius)}

.top{border-bottom:1px solid var(--line);padding:16px 0;margin-bottom:0}
.top .wrap{display:flex;flex-wrap:wrap;gap:14px;align-items:baseline;justify-content:space-between}
.brand{font-weight:600;font-size:17px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand span{display:block;font-weight:400;font-size:13px;color:var(--ink3);letter-spacing:0}
.top nav{display:flex;flex-wrap:wrap;gap:16px}
.top nav a{font-size:15px;color:var(--ink2);text-decoration:none}
.top nav a:hover{color:var(--accent)}
.top nav a.on{color:var(--ink);font-weight:500}

.hero{max-width:1100px;margin:0 auto;padding:24px 20px 0}
.hero img{width:100%;height:auto;display:block;border-radius:14px}

main{padding:36px 0 64px}
h1{font-size:34px;line-height:1.15;font-weight:600;letter-spacing:-.02em;margin:0 0 24px}
h2{font-size:24px;line-height:1.25;font-weight:600;letter-spacing:-.01em;margin:44px 0 14px}
h3{font-size:19px;line-height:1.3;font-weight:600;margin:32px 0 10px}
h4{font-size:17px;font-weight:600;margin:24px 0 8px}
p{margin:0 0 18px}
a{color:var(--accent-ink);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
strong{font-weight:600}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}

ul,ol{margin:0 0 18px;padding-left:22px}
li{margin:0 0 7px}

blockquote{
  margin:24px 0;padding:14px 18px;background:var(--card);
  border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;
}
blockquote p{margin:0;font-size:16px;color:var(--ink2)}

.tw{overflow-x:auto;margin:0 0 24px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:460px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;font-size:13px;letter-spacing:.02em;color:var(--ink2);white-space:nowrap}
tbody tr:last-child td{border-bottom:0}

code{font:400 14px/1 ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--card);padding:2px 5px;border-radius:4px}

.stamp{
  margin:48px 0 0;padding-top:20px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink3);line-height:1.6;
}

.foot{border-top:1px solid var(--line);padding:28px 0 48px;margin-top:24px}
.foot nav{display:flex;flex-wrap:wrap;gap:16px;margin:0 0 16px}
.foot nav a{font-size:15px;color:var(--ink2);text-decoration:none}
.foot nav a:hover{color:var(--accent)}
.foot p{font-size:14px;color:var(--ink3);margin:0;line-height:1.6}

@media(max-width:560px){
  body{font-size:16px}
  h1{font-size:27px}
  h2{font-size:21px;margin-top:36px}
  h3{font-size:18px}
  .hero{padding:16px 16px 0}
  .wrap{padding:0 16px}
  .top .wrap{flex-direction:column;gap:10px}
  .top nav{gap:14px}
}