:root{
  --bg:#ffffff;
  --fg:#1f2937;
  --muted:#6b7280;
  --brand:#4f46e5;
  --brand-2:#22c55e;
  --card:#f8fafc;
  --code:#0b1020;
  --badge:#e5e7eb;
}
.dark:root{
  --bg:#0b1020;
  --fg:#e5e7eb;
  --muted:#a3a3a3;
  --brand:#8b8bff;
  --brand-2:#60f2a9;
  --card:#0f162f;
  --code:#0a0f20;
  --badge:#223;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--fg);
  font:16px/1.8 system-ui, -apple-system, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{
  background:linear-gradient(135deg,var(--brand) 0%, var(--brand-2) 100%);
  color:#fff;
  padding:48px 0 36px;
}
.site-header h1{margin:0 0 8px;font-size:28px}
.lead{margin:0;opacity:.9}
.site-nav{
  display:flex; gap:12px; align-items:center; padding:12px 0; position:sticky; top:0; background:var(--bg); z-index:50; border-bottom:1px solid #e5e7eb;
}
.dark .site-nav{border-color:#1d243a}
.site-nav a{
  padding:8px 12px; border-radius:10px; text-decoration:none; color:var(--fg);
}
.site-nav a:hover{background:rgba(79,70,229,.1)}
.ghost-btn{
  margin-left:auto; border:1px solid #d1d5db; background:transparent; color:var(--fg);
  padding:8px 12px; border-radius:10px; cursor:pointer;
}
.dark .ghost-btn{border-color:#374151}
.toc{
  position:fixed; right:16px; top:140px; width:240px; max-height:60vh; overflow:auto;
  padding:12px; border:1px solid #e5e7eb; border-radius:12px; background:var(--card);
}
.dark .toc{border-color:#1d243a}
.toc h2{margin:0 0 8px; font-size:14px; color:var(--muted)}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin:.2em 0}
.toc a{text-decoration:none;color:var(--fg);font-size:14px}
.toc a:hover{color:var(--brand)}
.content{padding:28px 0 80px}
section{margin:48px 0}
h2{font-size:24px;margin:0 0 12px}
h3{font-size:18px;margin:0 0 8px}
.grid{display:grid; gap:16px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{
  background:var(--card); padding:16px; border:1px solid #e5e7eb; border-radius:14px;
}
.dark .card{border-color:#1d243a}
.kv{width:100%;border-collapse:collapse}
.kv th,.kv td{border-bottom:1px dashed #e5e7eb; padding:8px; text-align:left; vertical-align:top}
.dark .kv th,.dark .kv td{border-color:#1d243a}
.checklist{padding-left:1.1em}
.checklist li{margin:.3em 0}
.bullets{padding-left:1.1em}
.links{padding-left:1.1em}
.links a{color:var(--brand)}
.note{color:var(--muted); font-size:14px}
.code{
  background:var(--code); color:#e2e8f0; border-radius:12px; padding:12px; overflow:auto;
}
.code--large{min-height:260px}
.primary{
  background:var(--brand); color:#fff; border:0; padding:10px 14px; border-radius:10px; cursor:pointer;
}
.primary:hover{filter:brightness(1.05)}
.row{display:flex; gap:8px; flex-wrap:wrap}
.explorer{display:grid; grid-template-columns:1fr 1fr; gap:16px}
.explorer .controls label{display:block; margin-bottom:10px}
.explorer input[type="url"],
.explorer textarea,
.explorer select{
  width:100%; padding:10px; border:1px solid #d1d5db; border-radius:10px; background:#fff; color:#111;
}
.dark .explorer input,.dark .explorer textarea,.dark .explorer select{
  background:#0b1020; color:#e5e7eb; border-color:#1d243a;
}
.explorer textarea{min-height:100px}
.result-meta{display:flex; gap:8px; align-items:center; margin-bottom:6px}
.badge{background:var(--badge); color:#333; padding:4px 8px; font-size:12px; border-radius:999px}
.badge.ok{background:#10b98122; color:#22c55e}
.badge.ng{background:#ef444422; color:#ef4444}
.site-footer{border-top:1px solid #e5e7eb; padding:24px 0; background:var(--bg)}
.dark .site-footer{border-color:#1d243a}
.foot-nav{display:flex; gap:12px; list-style:none; margin:8px 0 0; padding:0}
@media (max-width: 1200px){
  .toc{display:none}
  .explorer{grid-template-columns:1fr}
}