body {
  margin: 0;
  padding: 16px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(135deg, #4FACFE 0%, #00F2FE 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: max(16px, env(safe-area-inset-top));
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

* {
  box-sizing: border-box;
}

.container {
  width: 100%;
  max-width: 500px;
  margin: auto;
}

.header {
  text-align: center;
  margin-bottom: 48px;
  color: white;
}

.header h1 {
  margin: 0;
  font-size: 48px;
  font-weight: 700;
}

.header p {
  margin: 8px 0 0 0;
  font-size: 16px;
  opacity: 0.9;
}

.primary-button {
  display: block;
  width: 100%;
  padding: 24px;
  margin-bottom: 32px;
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: white;
  color: #4FACFE;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  text-align: center;
}

.primary-button:active {
  transform: scale(0.98);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
}

.secondary-button {
  display: inline-block;
  padding: 16px 12px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  text-decoration: none;
  text-align: center;
}

.secondary-button:active {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0.95);
}