/* Base styles */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #0f0f0f, #1a1a1a);
  color: #fff;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}

.container {
  max-width: 600px;
  padding: 40px;
  background-color: rgba(255,255,255,0.05);
  border-radius: 15px;
  box-shadow: 0 0 40px rgba(0, 255, 0, 0.2);
  backdrop-filter: blur(10px);
}

h1 {
  color: #4caf50;
  font-size: 2.5rem;
  margin-bottom: 20px;
  text-shadow: 0 0 10px #4caf50;
}

p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  color: #ccc;
}

/* Buttons */
.buttons {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.btn {
  position: relative;
  background-color: #4caf50;
  border: none;
  padding: 15px 30px;
  font-size: 1.2rem;
  color: #fff;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 300%;
  height: 300%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%) scale(0);
  border-radius: 50%;
  transition: transform 0.5s ease;
}

.btn:hover::before {
  transform: translate(-50%, -50%) scale(1);
}

.btn:hover {
  transform: scale(1.05);
  background-color: #45a049;
  box-shadow: 0 0 20px #4caf50;
}

/* Loader */
.loader {
  margin: 30px auto 0;
  border: 6px solid #4caf50;
  border-top: 6px solid transparent;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}

.hidden {
  display: none;
}

@keyframes spin {
  0% { transform: rotate(0deg);}
  100% { transform: rotate(360deg);}
}