body {
  font-family: "Segoe UI", Roboto, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 0;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-header {
  background: linear-gradient(135deg, #4a90e2, #50c9ce);
  color: white;
  text-align: center;
  padding: 3rem 1rem 2rem;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.site-header h1 {
  margin: 0;
  font-size: 2.5rem;
}

.tagline {
  font-size: 1.1rem;
  margin-top: 0.5rem;
  opacity: 0.9;
}

.home-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.intro-box, .info-box {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  max-width: 600px;
  width: 90%;
  text-align: center;
  margin-bottom: 2rem;
  padding: 2rem;
}

.intro-box h2 {
  color: #4a90e2;
  margin-bottom: 1rem;
}

.start-btn {
  display: inline-block;
  margin-top: 1.5rem;
  background: #4a90e2;
  color: white;
  text-decoration: none;
  padding: 0.8rem 1.6rem;
  border-radius: 8px;
  font-weight: 600;
  transition: background 0.3s;
}

.start-btn:hover {
  background: #357abd;
}

.info-box ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.info-box li {
  margin: 0.5rem 0;
  padding-left: 1rem;
  position: relative;
}

.info-box li::before {
  content: "•";
  color: #4a90e2;
  font-size: 1.2rem;
  position: absolute;
  left: 0;
  top: 0;
}

.site-footer {
  text-align: center;
  padding: 1rem;
  background: #f0f0f0;
  font-size: 0.9rem;
  color: #666;
  border-top: 1px solid #ddd;
}