:root {
  --bg:#f6f6f7;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --btn:#111827;
  --btn2:#374151;
  --radius:16px;
}

* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial; }
.container { max-width: 820px; margin: 0 auto; padding: 16px; }
.header { padding: 8px 0 16px 0; }
.brand { margin:0; }
.subtitle { margin: 8px 0 0 0; color: var(--muted); }

.card { background: var(--card); border-radius: var(--radius); padding: 16px; box-shadow: 0 6px 20px rgba(0,0,0,.05); }
.footer { padding: 14px 2px; color: var(--muted); }

label { display:block; margin-top: 12px; font-weight: 600; }
input, select { width: 100%; padding: 12px; margin-top: 6px; border: 1px solid #e5e7eb; border-radius: 10px; font-size: 16px; }

.btn { display:inline-block; border:0; padding: 12px 16px; border-radius: 12px; background: var(--btn); color: white; font-weight: 700; cursor:pointer; text-decoration:none; text-align:center; }
.btn.secondary { background: var(--btn2); }
.link { color: #111827; text-decoration: underline; }
.muted { color: var(--muted); }
.row { display:flex; gap: 10px; align-items:center; }
.space-between { justify-content: space-between; }
.mt { margin-top: 14px; }

.question { margin: 14px 0; }
.opt { padding: 12px; background: #f3f4f6; border-radius: 12px; }
.tag { display:inline-block; min-width: 26px; text-align:center; padding: 4px 8px; border-radius: 999px; background: #111827; color:#fff; font-weight:800; margin-right: 8px; }