:root {
  --bg: #f5f6f7;
  --text: #202124;
  --muted: #5f6368;
  --border: #e0e0e0;
  --primary: #1a73e8;
  --max-width: 850px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  line-height: 1.7;
}

.container {
  background: #fff;
  max-width: var(--max-width);
  margin: 60px auto;
  padding: 40px 50px;
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

h1 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.subtitle {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 30px;
}

h2 {
  font-size: 20px;
  margin-top: 30px;
  color: var(--text);
  font-weight: 600;
}

ul {
  margin-top: 16px;
  padding-left: 20px;
}

ul li {
  margin-bottom: 12px;
  color: #333;
  font-size: 15px;
}

.note {
  margin-top: 25px;
  font-size: 14px;
  color: var(--muted);
}

.contact {
  margin-top: 25px;
  font-size: 14px;
  color: var(--text);
}

.contact a {
  color: var(--primary);
  text-decoration: none;
}

.contact a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  margin-top: 40px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 600px) {
  .container {
    padding: 25px;
    margin: 30px 15px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 18px;
  }

  ul li {
    font-size: 14px;
  }
}