body.auth-bg {
    background-color: #f0f2f5;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    font-family: 'Poppins', sans-serif;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-radius: 0.5rem;
}

.auth-header {
    font-size: 1.75rem;
    font-weight: 600;
    color: #343a40;
}

/* PIN Login specific styles */
.pin-display {
    letter-spacing: 0.5em;
    font-size: 2rem;
    background-color: #e9ecef;
    border-radius: 0.25rem;
    height: 60px;
    text-align: center;
    border: 1px solid #ced4da;
}

.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.keypad-btn {
    font-size: 1.5rem;
    padding: 1rem;
    border-radius: 50%;
    height: 75px;
    width: 75px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border: 1px solid #dee2e6;
}