/* base.css — shared reset & typography for all site/ pages (white, no gradients here). */
:root{
  --text:#1a1a1a;
  --muted:#666666;
  --border:#e6e6e6;
  --bg:#ffffff;
  --accent:#2f3b52;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  line-height:1.85;
  font-size:16px;
  -webkit-text-size-adjust:100%;
}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor;}
a:hover{opacity:.65;}
.container{max-width:720px;margin:0 auto;padding:0 20px;}
header.site-header{padding:26px 0 18px;border-bottom:1px solid var(--border);}
.brand{font-size:14px;letter-spacing:.09em;font-weight:600;color:var(--text);text-transform:uppercase;}
.brand small{display:block;font-size:11px;letter-spacing:.04em;color:var(--muted);font-weight:400;text-transform:none;margin-top:2px;}
main{padding:36px 0 60px;}
h1{font-size:24px;line-height:1.5;margin:0 0 10px;}
h2{font-size:18px;margin:36px 0 12px;padding-top:22px;border-top:1px solid var(--border);}
h2:first-of-type{border-top:none;padding-top:0;margin-top:0;}
h3{font-size:15px;margin:20px 0 8px;}
p{margin:0 0 14px;}
ul,ol{margin:0 0 14px;padding-left:1.3em;}
li{margin-bottom:6px;}
dl.meta{display:grid;grid-template-columns:104px 1fr;gap:10px 16px;margin:0;}
dl.meta dt{color:var(--muted);font-size:13px;}
dl.meta dd{margin:0;}
.card{border:1px solid var(--border);border-radius:10px;padding:22px;margin:24px 0;}
.lead{color:var(--muted);font-size:16px;}
footer.site-footer{border-top:1px solid var(--border);padding:22px 0;margin-top:40px;font-size:13px;color:var(--muted);}
footer.site-footer nav a{margin-right:16px;color:var(--muted);border-bottom:none;}
footer.site-footer nav a:hover{color:var(--text);}
.badge-placeholder{display:inline-flex;align-items:center;gap:8px;background:#111;color:#fff;padding:11px 18px;border-radius:8px;font-size:14px;border-bottom:none;}
.badge-placeholder .sub{font-size:10px;opacity:.75;display:block;}
.badge-placeholder .main{font-size:15px;font-weight:600;}
.small{font-size:13px;color:var(--muted);}
table.faq{width:100%;border-collapse:collapse;margin:0 0 14px;}
table.faq th,table.faq td{text-align:left;padding:0;}
.faq-item{margin:0 0 22px;}
.faq-q{font-weight:600;margin:0 0 6px;}
.faq-a{color:var(--muted);margin:0;}
.tag-list{list-style:none;padding:0;margin:0 0 14px;}
.tag-list li{padding-left:1.1em;position:relative;}
.tag-list li::before{content:"—";position:absolute;left:0;color:var(--muted);}
@media (min-width:600px){h1{font-size:30px;}}