* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: #f3f4f6; color: #111827; }
main { max-width: 480px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 22px; margin: 0 0 4px; }
.sub { color: #6b7280; margin: 0 0 20px; font-size: 14px; }
.card { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.08); margin-bottom: 16px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
input[type=text], input[type=email], input[type=password], select {
  width: 100%; font-size: 16px; padding: 12px; border: 1px solid #d1d5db; border-radius: 8px; background: #fff; }
.apt { font-size: 28px; text-align: center; letter-spacing: .05em; }
button, .btn { display: block; width: 100%; margin-top: 20px; padding: 14px; font-size: 17px; font-weight: 600;
  color: #fff; background: #2563eb; border: 0; border-radius: 10px; text-align: center; text-decoration: none; }
.msg { background: #fef2f2; color: #991b1b; border-radius: 8px; padding: 12px; margin-bottom: 16px; font-size: 14px; }
.ok  { background: #ecfdf5; color: #065f46; }
.meta { font-size: 13px; color: #6b7280; margin-top: 12px; line-height: 1.5; }
.big { font-size: 40px; text-align: center; margin: 8px 0; }
.chk { display: flex; gap: 8px; align-items: center; font-weight: 400; margin-top: 14px; }
.chk input { width: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid #e5e7eb; }
a.small { font-size: 13px; color: #6b7280; }