:root{
  --bg:#0f1115; --fg:#eaeaf0; --muted:#b8b8c6; --card:#151823; --acc:#78aaff; --acc-2:#ffc866;
  --border:rgba(255,255,255,0.08); --shadow:0 6px 28px rgba(0,0,0,0.35);
  --radius:16px; --radius-sm:10px; --gap:16px; --maxw:880px;
  --font: 'Noto Sans JP', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:var(--font);line-height:1.75}
.container{max-width:var(--maxw);margin:0 auto;padding:32px 20px}
h1,h2,h3{line-height:1.2;margin:0 0 12px}
h1{font-size: clamp(24px, 4vw, 32px)}
h2{font-size: clamp(20px, 3.2vw, 26px)}
h3{font-size: clamp(18px, 3vw, 22px)}
p{color:var(--fg);opacity:0.95;margin:0 0 10px}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(255,255,255,0.00));
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px; box-shadow:var(--shadow); backdrop-filter: blur(6px);
  margin-bottom:18px;
}
.row{display:grid;grid-template-columns:1fr;gap:var(--gap)}
@media(min-width:860px){ .row{grid-template-columns:1fr 1fr} }
.btn{
  display:inline-block;background:var(--acc);color:#04121f;
  padding:12px 18px;border-radius:12px;border:none;cursor:pointer;
  font-weight:700;text-decoration:none;box-shadow:0 6px 12px rgba(120,170,255,0.25);
}
.btn--ghost{background:transparent;color:var(--acc);border:1px solid var(--acc)}
.btn:disabled{opacity:0.5;cursor:not-allowed}
.badge{display:inline-block;background:rgba(120,170,255,0.15);border:1px solid rgba(120,170,255,0.4);color:#cfe0ff;padding:6px 10px;border-radius:999px;font-size:12px;margin-right:8px}
.small{color:var(--muted);font-size:13px}
footer{margin-top:28px;color:var(--muted);font-size:13px}
hr{border:none;border-top:1px solid var(--border);margin:16px 0}

.question{margin-bottom:16px}
.q-label{font-weight:700;margin-bottom:6px}
.scale{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.scale label{background:rgba(255,255,255,0.05);padding:6px 10px;border-radius:10px;border:1px solid var(--border);cursor:pointer}
.scale input{margin-right:6px}
.grid{display:grid;gap:var(--gap)}
details{border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;background:rgba(255,255,255,0.02)}
summary{cursor:pointer;font-weight:700}
.ad{border:1px dashed var(--border);border-radius:12px;padding:10px;margin:10px 0;color:var(--muted);text-align:center}
.ad--footer{position:sticky;bottom:10px;z-index:5;background:rgba(0,0,0,0.2)}
.kv{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}
.kv .chip{background:rgba(255,255,255,0.06);border:1px solid var(--border);padding:4px 8px;border-radius:10px;font-size:12px}