* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  max-width: 500px;
  width: 100%;
  text-align: center;
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h1 {
  font-size: 2.5rem;
  font-weight: 300;
  margin-bottom: 30px;
  color: #2c3e50;
  animation: slideIn 1s ease-out 0.2s both;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

h3 {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 20px;
  color: #34495e;
  animation: slideIn 1s ease-out 0.4s both;
}

.tools {
  margin-bottom: 40px;
}

.tool-link {
  display: inline-block;
  margin: 10px 15px;
  padding: 12px 24px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: white;
  text-decoration: none;
  border-radius: 25px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  animation: slideIn 1s ease-out 0.6s both;
}

.tool-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.tool-link:active {
  transform: translateY(0);
}

nav {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #ecf0f1;
  animation: slideIn 1s ease-out 0.8s both;
}

nav a {
  color: #7f8c8d;
  text-decoration: none;
  margin: 0 10px;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #667eea;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@media (max-width: 600px) {
  .container {
    padding: 30px 20px;
    margin: 20px;
  }

  h1 {
    font-size: 2rem;
  }

  .tool-link {
    display: block;
    margin: 10px 0;
  }
}