* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: Arial, "Noto Sans Thai", sans-serif;
  background: #f5f5f5;
  color: #1f2937;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 70px 20px;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 48px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.06);
}

.version {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 8px;
  background: #f3f4f6;
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 18px 0;
  font-size: clamp(36px, 6vw, 60px);
  line-height: 1.15;
}

p {
  font-size: 20px;
  line-height: 1.6;
}

.status {
  font-weight: 700;
}

a {
  display: inline-block;
  margin-top: 12px;
  padding: 13px 20px;
  border-radius: 10px;
  background: #111827;
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
}

a:hover {
  opacity: 0.85;
}

@media (max-width: 600px) {
  .container {
    padding: 30px 15px;
  }

  .card {
    padding: 28px 22px;
  }

  p {
    font-size: 18px;
  }
}