/* Saku Hub — 全ページ共通スタイル */

:root{
  color-scheme:light;
  --bg:#fafafa;
  --surface:#fff;
  --ink:#222;
  --ink-sub:#666;
  --line:#ccc;
  --line-soft:#e4e4e4;
  --link:#0645ad;
  --brand:#11161E;
  --brand-ink:#11161E;
  --th-bg:#eee;
  --shadow:0 1px 3px rgba(0,0,0,.04);
}
@media (prefers-color-scheme:dark){
  :root{
    color-scheme:dark;
    --bg:#15171c;
    --surface:#1d2026;
    --ink:#e7e8ea;
    --ink-sub:#9aa0ab;
    --line:#3a3e46;
    --line-soft:#282c33;
    --link:#8fb4ff;
    --brand:#F1F3F5;
    --brand-ink:#F1F3F5;
    --th-bg:#262a32;
    --shadow:0 1px 3px rgba(0,0,0,.2);
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,-apple-system,"Segoe UI",Meiryo,sans-serif;
  font-size:16px;
  line-height:1.85;
}
a{color:var(--link)}
a:hover{opacity:.8}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}

/* ---- header ---- */
.site-head{
  border-bottom:1px solid var(--line-soft);
  background:var(--surface);
  position:sticky;top:0;z-index:10;
}
.site-head .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;padding-bottom:16px;gap:12px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:bold;font-size:1.05em;color:var(--ink);text-decoration:none}
.brand picture{display:block;line-height:0}
.brand .brand-lockup{display:block;width:176px;height:44px;object-fit:contain}
.site-head nav{display:flex;align-items:center;gap:18px;font-size:.92em;flex-wrap:wrap}
.site-head nav a{color:var(--ink-sub);text-decoration:none}
.site-head nav a:hover{color:var(--link)}

/* ---- main content ---- */
main .wrap{padding:32px 20px 80px}
h1{font-size:1.6em;line-height:1.5;border-bottom:3px solid var(--ink);padding-bottom:12px;margin:0 0 8px}
h2{font-size:1.18em;line-height:1.6;margin-top:2.3em;margin-bottom:.7em;border-left:5px solid var(--ink-sub);padding-left:10px}
h3{font-size:1.02em;margin-top:1.6em;margin-bottom:.4em}
p{margin:0 0 1em}
ol,ul{padding-left:1.6em}
li{margin-bottom:.4em}
.updated{color:var(--ink-sub);font-size:.9em;margin:0 0 2em}
strong{font-weight:700}
code{background:var(--th-bg);padding:2px 6px;border-radius:3px;font-size:.92em}

/* ---- tables ---- */
table{border-collapse:collapse;width:100%;margin:1em 0}
th,td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top;font-size:.95em}
th{background:var(--th-bg);white-space:nowrap}

/* ---- boxes / callouts ---- */
.box{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px 20px;margin:1.2em 0;box-shadow:var(--shadow)}
.box .mail{font-size:1.15em;font-weight:bold;line-height:1.6;word-break:break-all}
.meta{font-size:.92em;color:var(--ink-sub);margin:0}

/* ---- table of contents (legal pages) ---- */
.toc{
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:8px;
  padding:18px 22px;
  margin:1.6em 0 2.4em;
}
.toc p{margin:0 0 .6em;font-weight:bold;font-size:.92em;color:var(--ink-sub)}
.toc ol{margin:0;padding-left:1.4em;columns:1;font-size:.95em}
.toc li{margin-bottom:.35em}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}
@media (min-width:600px){
  .toc ol{columns:2;column-gap:24px}
}

/* ---- hero (top page) ---- */
.hero{padding:56px 0 48px;border-bottom:1px solid var(--line-soft)}
.hero h1{font-size:1.9em;line-height:1.5;margin:0 0 16px;letter-spacing:.01em;border:none;padding-bottom:0}
.hero .lead{font-size:1.05em;margin:0 0 28px;color:var(--ink)}
.status-badge{
  display:inline-block;border:1px solid var(--brand);color:var(--brand-ink);
  background:rgba(124,111,255,.08);border-radius:999px;padding:5px 14px;
  font-size:.85em;line-height:1.4;margin-bottom:20px;
}
.hero .note{font-size:.9em;color:var(--ink-sub);margin:0}

/* ---- generic section (top page) ---- */
section{padding:44px 0;border-bottom:1px solid var(--line-soft)}
section h2{font-size:1.15em;border-left:5px solid #555;padding-left:10px;margin:0 0 20px}
section h3{font-size:1em;margin:1.4em 0 .4em}

/* ---- doc type list ---- */
.doctypes{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.doctypes li{
  background:var(--surface);border:1px solid var(--line);border-radius:6px;
  padding:12px 14px;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;
}
.doctypes .name{font-weight:bold}
.doctypes .tag{color:var(--ink-sub);font-size:.9em}

/* ---- steps ---- */
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;gap:14px}
.steps li{counter-increment:s;display:flex;gap:14px;align-items:flex-start}
.steps li::before{
  content:counter(s);flex:0 0 28px;height:28px;border:1px solid #555;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:.9em;line-height:1;margin-top:3px;
}
.steps .st-name{font-weight:bold}
.steps .st-desc{color:var(--ink-sub);font-size:.92em;display:block}

/* ---- product roadmap ---- */
.products{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.products li{
  background:var(--surface);border:1px solid var(--line);border-left-width:4px;border-radius:6px;
  padding:11px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.products .pname{font-weight:bold}
.products .pstate{
  font-size:.82em;color:var(--ink-sub);border:1px solid var(--line);border-radius:999px;
  padding:2px 10px;white-space:nowrap;
}

/* ---- footer ---- */
.site-foot{border-top:1px solid var(--line-soft);margin-top:3em;padding:24px 0 64px;font-size:.9em;color:var(--ink-sub)}
.site-foot nav{margin:0 0 14px;display:flex;flex-wrap:wrap;gap:0}
.site-foot nav a{margin-right:16px;display:inline-block;line-height:2}
.site-foot .corp{margin:0 0 6px}

/* ---- 404 ---- */
.notfound-nav a{margin-right:14px;display:inline-block;line-height:2}

@media (max-width:480px){
  body{font-size:15px}
  .wrap{padding:0 14px}
  main .wrap{padding:20px 14px 60px}
  .hero{padding:40px 0 36px}
  .hero h1{font-size:1.5em}
  section{padding:34px 0}
  .products li{flex-direction:column;align-items:flex-start;gap:6px}
  table,th,td{font-size:.85em}
  .toc{padding:14px 16px}
}