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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #1a1a3e;
  padding: 20px;
}

.container {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  text-align: center;
  max-width: 450px;
  width: 100%;
}

.header {
  margin-bottom: 30px;
}

.header h1 {
  color: #333;
  margin-bottom: 10px;
  font-size: 28px;
}

.header p {
  color: #666;
  font-size: 16px;
}

.login-section {
  margin: 30px 0;
}

.user-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
  border-radius: 15px;
  margin: 20px 0;
  color: white;
  display: none;
}

.user-card img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid white;
  margin-bottom: 15px;
}

.user-card h3 {
  margin: 10px 0 5px 0;
  font-size: 22px;
}

.user-card p {
  opacity: 0.9;
  font-size: 14px;
}

.status-card {
  padding: 20px;
  border-radius: 12px;
  margin: 20px 0;
  display: none;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.status-subscribed {
  background: #d4edda;
  border: 2px solid #28a745;
}

.status-subscribed .icon {
  font-size: 48px;
  margin-bottom: 10px;
}

.status-subscribed h2 {
  color: #155724;
  margin-bottom: 10px;
}

.status-subscribed p {
  color: #155724;
  margin: 5px 0;
}

.status-not-subscribed {
  background: #fff3cd;
  border: 2px solid #ffc107;
}

.status-not-subscribed .icon {
  font-size: 48px;
  margin-bottom: 10px;
}

.status-not-subscribed h2 {
  color: #856404;
  margin-bottom: 10px;
}

.status-not-subscribed p {
  color: #856404;
  margin: 10px 0;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  margin: 10px 5px;
}

.btn-primary {
  background: #0088cc;
  color: white;
}

.btn-primary:hover {
  background: #006699;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 136, 204, 0.3);
}

.btn-success {
  background: #28a745;
  color: white;
}

.btn-success:hover {
  background: #218838;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.btn-danger {
  background: #dc3545;
  color: white;
}

.btn-danger:hover {
  background: #c82333;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(220, 53, 69, 0.3);
}

.loader {
  border: 3px solid #f3f3f3;
  border-top: 3px solid #667eea;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
  margin: 20px auto;
  display: none;
}

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

.error-message {
  background: #f8d7da;
  color: #721c24;
  padding: 15px;
  border-radius: 8px;
  margin: 15px 0;
  border: 1px solid #f5c6cb;
  display: none;
}

@media (max-width: 480px) {
  .container {
    padding: 25px;
  }

  .header h1 {
    font-size: 24px;
  }

  .btn {
    display: block;
    width: 100%;
    margin: 10px 0;
  }
}