:root{
  --bg:#0b0f14; --card:#101826; --text:#e7eef7; --muted:#a7b3c2;
  --line:#223044; --accent:#7bd3ff; --good:#b7ffb0; --warn:#ffd27b; --bad:#ff7b7b;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", Arial, sans-serif;}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:980px;margin:0 auto;padding:28px 18px 64px}
.topbar{display:flex;gap:14px;align-items:center;justify-content:space-between;margin-bottom:18px}
.brand{display:flex;gap:10px;align-items:center}
.logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--good))}
.badge{border:1px solid var(--line);padding:4px 10px;border-radius:999px;color:var(--muted);font-size:12px}
.nav{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 18px}
.nav a{border:1px solid var(--line);padding:8px 10px;border-radius:10px;color:var(--text);font-size:13px}
.nav a.active{border-color:var(--accent);box-shadow:0 0 0 2px rgba(123,211,255,0.12) inset}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 16px;margin:12px 0}
.h1{font-size:28px;margin:10px 0 4px}
.h2{font-size:18px;margin:18px 0 8px}
.p{line-height:1.75;color:var(--text)}
.muted{color:var(--muted)}
.small{font-size:12px;color:var(--muted)}
.hr{height:1px;background:var(--line);margin:16px 0}
.callout{border-left:4px solid var(--accent);padding:12px 12px;background:rgba(123,211,255,0.07);border-radius:10px}
.warn{border-left-color:var(--warn);background:rgba(255,210,123,0.08)}
.bad{border-left-color:var(--bad);background:rgba(255,123,123,0.07)}
.good{border-left-color:var(--good);background:rgba(183,255,176,0.07)}
.list{margin:8px 0 0 18px;line-height:1.75}
.footer{margin-top:28px;padding-top:14px;border-top:1px solid var(--line)}
.kv{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:860px){ .kv{grid-template-columns:1.2fr .8fr} }
.btnrow{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.btn{display:inline-block;border:1px solid var(--line);padding:10px 12px;border-radius:12px;color:var(--text)}
.btn.primary{border-color:var(--accent);box-shadow:0 0 0 2px rgba(123,211,255,0.12) inset}