@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap');
body { font-family: 'Nunito', sans-serif; background-color: #F3F4F6; display: flex; align-items: center; justify-content: center; min-height: 100vh; margin: 0; }
.auth-container { background: white; padding: 2.5rem; border-radius: 16px; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); width: 100%; max-width: 400px; text-align: center; }
h2 { font-weight: 800; font-size: 2rem; margin-top: 0; color: #111827; }
.input-group { text-align: left; margin-bottom: 1.5rem; }
label { display: block; font-weight: 600; margin-bottom: 0.5rem; color: #374151; }
input { width: 100%; padding: 0.75rem 1rem; border: 1px solid #D1D5DB; border-radius: 8px; font-size: 1rem; }
.auth-btn { width: 100%; padding: 1rem; font-size: 1.1rem; font-weight: 700; color: white; background-color: #4F46E5; border: none; border-radius: 8px; cursor: pointer; transition: background-color 0.2s; }
.auth-btn:hover { background-color: #4338CA; }
.auth-link { margin-top: 1.5rem; color: #6B7280; }
.auth-link a { color: #4F46E5; text-decoration: none; font-weight: 600; }
.auth-link a:hover { text-decoration: underline; }
.error-message {
    color: #DC2626; /* Red */
    background-color: #FEF2F2; /* Light Red */
    border: 1px solid #F87171;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 600;
    display: none; /* Hidden by default */
}