/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: #e2e8f0;
}

/* Container */
.container {
  text-align: center;
  padding: 20px;
}

/* Card */
.card {
  max-width: 520px;
  padding: 40px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Heading */
h1 {
  font-size: 28px;
  margin-bottom: 15px;
}

/* Paragraph */
p {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 20px;
  color: #cbd5e1;
}

/* Button */
.btn {
  display: inline-block;
  padding: 12px 20px;
  background: #3b82f6;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn:hover {
  background: #2563eb;
}

/* Small text */
.subtext {
  margin-top: 20px;
  font-size: 13px;
  color: #94a3b8;
}