body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#auth-container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 2rem;
}

#sign-in, #sign-up {
    margin-top: 1rem;
}

#sign-up {
    display: none;
}

.switch-auth {
    margin-top: 1rem;
    color: #2563eb;
    text-decoration: underline;
    cursor: pointer;
    background: none;
    border: none;
    font-size: 0.9rem;
}

.switch-auth:hover {
    color: #1d4ed8;
}