:root {
    --primary-dark: #0a0a0a;
    --accent-blue: #00f7ff;
    --accent-purple: #6c00ff;
    --text-primary: #ffffff;
    --glass-effect: rgba(255, 255, 255, 0.05);
  }

  body {
    background-color: var(--primary-dark);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
  }

  .auth-container {
    background: var(--glass-effect);
    backdrop-filter: blur(10px);
    padding: 2rem 3rem;
    border-radius: 15px;
    border: 1px solid var(--accent-blue);
    width: 100%;
    max-width: 400px;
    text-align: center;
  }

  .auth-logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    background: linear-gradient(45deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 2rem;
  }

  .auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .auth-input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--accent-blue);
    padding: 0.8rem;
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 1rem;
  }

  .auth-button {
    background: linear-gradient(45deg, var(--accent-purple), var(--accent-blue));
    border: none;
    padding: 1rem;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
  }

  .auth-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px var(--accent-blue);
  }

  .auth-toggle {
    margin-top: 1.5rem;
    cursor: pointer;
    color: var(--accent-blue);
  }

  .error-message {
    color: #ff4444;
    margin-top: 1rem;
    display: none;
  }