{{-- Halaman auth (login, daftar, lupa sandi, kode verifikasi): tidak bisa digeser kiri-kanan, dan tidak bisa digeser
     atas-bawah selama isinya muat di satu layar. Kalau keyboard HP terbuka / layar terlalu pendek, scroll aktif lagi
     supaya kolom yang diketik tetap kelihatan. --}}
<style>
html,body{overflow-x:hidden!important;overscroll-behavior-x:none}
body{padding-bottom:0!important;min-height:100vh;min-height:100dvh;touch-action:pan-y}
.auth-wrap{min-height:100vh;min-height:100dvh}
.auth-form>*{min-width:0}
.auth-google{width:auto!important;align-self:stretch;max-width:100%}
/* Kotak kode OTP menyesuaikan lebar layar, tidak lagi melebar keluar kartu */
.otp-inputs{gap:8px;width:100%}
.otp-digit{flex:1 1 0;width:auto;min-width:0;max-width:52px;padding:0}
html.auth-lock,html.auth-lock body{overflow:hidden!important;height:100%;overscroll-behavior:none}
</style>
<script>
(function(){
    var root = document.documentElement;
    function update(){
        var wrap  = document.querySelector('.auth-wrap');
        var inner = wrap && wrap.firstElementChild;
        if (!inner) return;
        var vh = (window.visualViewport && window.visualViewport.height) || window.innerHeight;
        var bottom = inner.getBoundingClientRect().bottom + (window.pageYOffset || 0) + 24; // padding bawah .auth-wrap
        if (bottom <= vh + 1) { root.classList.add('auth-lock'); window.scrollTo(0, 0); }
        else { root.classList.remove('auth-lock'); }
    }
    window.addEventListener('load', update);
    window.addEventListener('resize', update);
    window.addEventListener('orientationchange', update);
    if (window.visualViewport) window.visualViewport.addEventListener('resize', update);
    try {
        var w = document.querySelector('.auth-wrap');
        if (w && window.MutationObserver) {
            new MutationObserver(function(){ setTimeout(update, 30); })
                .observe(w, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class', 'hidden'] });
        }
    } catch (e) {}
    update();
})();
</script>