* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f3f4f6;
  color: #111827;
  font-family: "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  padding: 24px;
}

.box {
  text-align: center;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 48px 40px;
  max-width: 420px;
}

.icon { font-size: 48px; line-height: 1; margin-bottom: 12px; }
.code {
  font-size: 56px;
  font-weight: 700;
  color: #9ca3af;
  line-height: 1;
  margin-bottom: 8px;
}
h1 { font-size: 22px; margin-bottom: 10px; }
.msg { font-size: 15px; color: #6b7280; }