html, body {
    height: 100%;
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #e0e7ff 0%, #f9fafb 100%);
}

.auth-bg {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100dvh;
    padding: 2rem;
}

/* Responsive card */
.auth-card {
    width: 100%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 2rem 2.25rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* Input & form polish */
.form-label {
    font-weight: 600;
}

/* Keep layout nice on small screens */
@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
    }
}