:root{
  --paper:#FAF7F1; --card:#FFFFFF; --ink:#14213D; --soft:#586174; --line:#E3DDD2; --accent:#E4572E; --accent-dark:#C2441F;
  --display:"Fraunces",Georgia,serif; --body:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){--paper:#10151F;--card:#171E2B;--ink:#EDEFF4;--soft:#A2AABA;--line:#2A3345;--accent:#FF7A52;--accent-dark:#FF9270;color-scheme:dark}
}
:root[data-theme="dark"]{--paper:#10151F;--card:#171E2B;--ink:#EDEFF4;--soft:#A2AABA;--line:#2A3345;--accent:#FF7A52;--accent-dark:#FF9270;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 var(--body);-webkit-text-size-adjust:100%}
.top{border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.wrap{max-width:760px;margin:0 auto;padding-inline:20px}
.logo{font-family:var(--display);font-weight:800;font-size:1.35rem;text-decoration:none;color:inherit}
.logo span{color:var(--accent)}
.back{color:var(--soft);text-decoration:none;font-size:.95rem}
.back:hover{color:var(--ink)}
main{padding-block:56px 80px}
h1,h2{font-family:var(--display);line-height:1.12;letter-spacing:-.015em}
h1{font-size:clamp(2.2rem,5vw,3rem);margin:0 0 28px}
h2{font-size:1.35rem;margin:40px 0 10px}
p,ul{margin:0 0 14px}
ul{padding-left:22px}
a{color:var(--accent-dark)}
.fill{background:#FFE58A;color:#3A2A00;padding:1px 6px;border-radius:5px;font-weight:600}
.hint{border:1px solid var(--line);background:var(--card);border-radius:14px;padding:16px 18px;color:var(--soft);font-size:.95rem;margin-bottom:34px}
footer{border-top:1px solid var(--line);padding-block:28px calc(28px + env(safe-area-inset-bottom,0px));color:var(--soft);font-size:.93rem}
footer .wrap{display:flex;gap:20px;flex-wrap:wrap}
a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}