/* ==========================================================================
   Superadmin Login – background animation & pattern
   ========================================================================== */

body.sa-login {
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
    background: #f0f1f4;
}

/* Animated gradient orbs (soft mesh) */
body.sa-login::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(
            ellipse 80% 60% at 20% 30%,
            rgba(220, 38, 38, 0.12) 0%,
            transparent 55%
        ),
        radial-gradient(
            ellipse 70% 50% at 80% 70%,
            rgba(220, 38, 38, 0.08) 0%,
            transparent 50%
        ),
        radial-gradient(
            ellipse 60% 40% at 50% 90%,
            rgba(185, 28, 28, 0.06) 0%,
            transparent 45%
        ),
        radial-gradient(
            ellipse 50% 50% at 90% 15%,
            rgba(254, 242, 242, 0.5) 0%,
            transparent 40%
        );
    animation: sa-login-gradient-shift 18s ease-in-out infinite;
    pointer-events: none;
}

@keyframes sa-login-gradient-shift {
    0%, 100% {
        opacity: 1;
        transform: scale(1) translate(0, 0);
    }
    33% {
        opacity: 0.95;
        transform: scale(1.02) translate(1%, 0.5%);
    }
    66% {
        opacity: 1;
        transform: scale(0.98) translate(-0.5%, -0.5%);
    }
}

/* Subtle dot pattern overlay */
body.sa-login::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image: radial-gradient(
        circle at center,
        rgba(220, 38, 38, 0.04) 1px,
        transparent 1px
    );
    background-size: 28px 28px;
    animation: sa-login-pattern-drift 25s linear infinite;
    pointer-events: none;
}

@keyframes sa-login-pattern-drift {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 28px 28px;
    }
}

/* Ensure main and login box sit above background */
body.sa-login .sa-main {
    position: relative;
    z-index: 1;
}

body.sa-login .sa-login-box {
    position: relative;
    z-index: 1;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(220, 38, 38, 0.06);
}

/* Mobile: ensure login is centered and fits the viewport */
@media (max-width: 768px) {
    body.sa-login .sa-main {
        padding: 1rem;
        align-items: center;
        justify-content: center;
    }

    body.sa-login .sa-login-box {
        width: 100%;
        max-width: min(400px, calc(100vw - 2rem));
        margin: 0 auto;
        padding: 1.5rem 1.25rem;
    }
}