:root {
    --auth-bg: #070b16;
    --auth-bg-soft: #0d1424;
    --auth-line: rgba(255, 255, 255, .09);
    --auth-text: #e8ecf6;
    --auth-muted: #8b97b1;
    --auth-accent: #1b84ff;
    --auth-accent-2: #22d3ee;
}

html,
body {
    height: 100%;
}

body.auth-body {
    margin: 0;
    background: var(--auth-bg);
    color: var(--auth-text);
    font-family: Inter, Helvetica, sans-serif;
    overflow: hidden;
}

/* ---------- Stage ---------- */
.auth-stage {
    position: relative;
    min-height: 100dvh;
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    isolation: isolate;
}

/* 3D canvas fills the whole viewport, panel floats above it */
#auth-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 0;
}

.auth-stage::after {
    /* vignette + gradient so the form side stays readable */
    content: "";
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        radial-gradient(120% 90% at 15% 20%, rgba(27, 132, 255, .18), transparent 60%),
        radial-gradient(90% 80% at 85% 80%, rgba(34, 211, 238, .12), transparent 60%),
        linear-gradient(90deg, rgba(7, 11, 22, .35) 0%, rgba(7, 11, 22, .55) 45%, rgba(7, 11, 22, .92) 78%);
}

/* ---------- Left / brand ---------- */
.auth-brand {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem 3rem 4rem 5rem;
    gap: 2rem;
}

/* Logo dan badge dirapatkan jadi satu kesatuan visual. */
.auth-lockup {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
}

/* Soft dark wash: the 3D racks pass behind the copy, so the text needs
   its own ground rather than relying on whatever geometry is there. */
.auth-brand::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(80% 65% at 30% 50%, rgba(4, 8, 18, .92) 0%, rgba(4, 8, 18, .75) 45%, transparent 78%);
}

.auth-badge {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    width: fit-content;
    padding: .45rem .9rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: #bcd6ff;
    border: 1px solid rgba(27, 132, 255, .35);
    border-radius: 999px;
    background: rgba(9, 16, 31, .78);
    backdrop-filter: blur(10px);
}

.auth-badge .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22d3ee;
    box-shadow: 0 0 0 0 rgba(34, 211, 238, .7);
    animation: auth-pulse 2s infinite;
}

@keyframes auth-pulse {
    70% {
        box-shadow: 0 0 0 9px rgba(34, 211, 238, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(34, 211, 238, 0);
    }
}

.auth-title {
    font-size: clamp(2.2rem, 3.6vw, 3.6rem);
    line-height: 1.08;
    font-weight: 700;
    letter-spacing: -.02em;
    margin: 0;
    color: #fff;
    text-shadow: 0 3px 22px rgba(0, 0, 0, .8);
}

.auth-title-logo {
    display: block;
    width: auto;
    /* Skala sendiri (bukan lagi ikut ukuran teks judul lama) supaya logo
       cukup dominan sebagai elemen utama hero. */
    height: clamp(3rem, 5vw, 4.75rem);
    max-width: min(100%, 26rem);
    object-fit: contain;
    object-position: left center;
    /* Logo umumnya rata di atas latar gelap; drop-shadow mengikuti bentuk
       transparan PNG/SVG, tak seperti box-shadow yang membingkai kotak. */
    filter: drop-shadow(0 6px 22px rgba(0, 0, 0, .55));
    animation: auth-logo-rise .7s cubic-bezier(.22, .9, .3, 1) both;
}

@keyframes auth-logo-rise {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
}

.auth-title span {
    background: linear-gradient(100deg, var(--auth-accent) 0%, var(--auth-accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-sub {
    max-width: 46ch;
    color: #c3cee4;
    font-size: 1.02rem;
    line-height: 1.65;
    margin: 0;
    text-shadow: 0 2px 14px rgba(0, 0, 0, .85);
}

/* ---------- Right / form panel ---------- */
.auth-panel-wrap {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    padding: 2.5rem 3rem;
}

.auth-panel {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem 2.25rem 2rem;
    border-radius: 22px;
    border: 1px solid var(--auth-line);
    background: linear-gradient(160deg, rgba(20, 27, 45, .88), rgba(11, 16, 29, .94));
    backdrop-filter: blur(22px) saturate(140%);
    box-shadow: 0 30px 70px -20px rgba(0, 0, 0, .8), inset 0 1px 0 rgba(255, 255, 255, .06);
    animation: auth-rise .7s cubic-bezier(.2, .7, .3, 1) both;
}

@keyframes auth-rise {
    from {
        opacity: 0;
        transform: translateY(22px);
    }
}

.auth-logo {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--auth-accent), var(--auth-accent-2));
    box-shadow: 0 10px 26px -8px rgba(27, 132, 255, .8);
}

.auth-foot {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 420px;
    text-align: center;
    font-size: .8rem;
    color: rgba(139, 151, 177, .8);
}

.auth-panel-title {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -.015em;
    color: #fff;
    margin: 0 0 .4rem;
}

.auth-panel-sub {
    font-size: .92rem;
    color: var(--auth-muted);
    margin: 0;
}

/* ---------- Metronic form overrides (dark glass) ---------- */
.auth-panel .form-control {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .11);
    color: var(--auth-text) !important;
    border-radius: 12px;
    padding: .85rem 1rem;
    transition: border-color .2s, box-shadow .2s, background .2s;
}

.auth-panel .form-control::placeholder {
    color: #6f7c98;
}

.auth-panel .form-control:focus {
    background: rgba(255, 255, 255, .06);
    border-color: var(--auth-accent);
    box-shadow: 0 0 0 4px rgba(27, 132, 255, .18);
}

.auth-panel .input-group-text {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .11);
    border-left: 0;
    border-radius: 0 12px 12px 0;
    color: var(--auth-muted);
}

.auth-panel .input-group .form-control {
    border-right: 0;
    border-radius: 12px 0 0 12px;
}

.auth-panel .form-label,
.auth-panel .form-check-label {
    color: var(--auth-muted);
    font-size: .875rem;
}

.auth-panel .form-check-input {
    background-color: rgba(255, 255, 255, .06);
    border-color: rgba(255, 255, 255, .18);
}

.auth-panel .form-check-input:checked {
    background-color: var(--auth-accent);
    border-color: var(--auth-accent);
}

.auth-panel .btn-primary {
    border: 0;
    border-radius: 12px;
    padding: .9rem 1rem;
    font-weight: 600;
    letter-spacing: .01em;
    background: linear-gradient(100deg, var(--auth-accent), #3aa0ff 55%, var(--auth-accent-2));
    background-size: 200% 100%;
    box-shadow: 0 14px 30px -12px rgba(27, 132, 255, .9);
    transition: background-position .45s ease, transform .15s ease, box-shadow .2s ease;
}

.auth-panel .btn-primary:hover {
    background-position: 100% 0;
    transform: translateY(-1px);
    box-shadow: 0 18px 36px -12px rgba(34, 211, 238, .85);
}

.auth-panel .btn-primary:active {
    transform: translateY(0);
}

.auth-panel .btn-light-primary {
    border-radius: 12px;
    padding: .8rem 1rem;
    font-weight: 600;
    color: #bcd6ff;
    background: rgba(27, 132, 255, .10);
    border: 1px solid rgba(27, 132, 255, .28);
    transition: background .2s, border-color .2s, color .2s;
}

.auth-panel .btn-light-primary:hover {
    background: rgba(27, 132, 255, .2);
    border-color: rgba(27, 132, 255, .5);
    color: #fff;
}

.auth-panel .separator {
    border-color: rgba(255, 255, 255, .1) !important;
}

.auth-panel .separator span {
    color: var(--auth-muted) !important;
    background: transparent;
}

.auth-panel .invalid-feedback {
    font-size: .8rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 1199.98px) {
    .auth-stage {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .auth-brand {
        padding: 2.5rem 1.5rem .5rem;
        text-align: center;
        align-items: center;
    }

    .auth-lockup {
        align-items: center;
        gap: .85rem;
    }

    /* Gambar block tak ikut text-align, jadi dipusatkan manual di layar kecil. */
    .auth-title-logo {
        margin-inline: auto;
        object-position: center;
    }

    .auth-sub {
        display: none;
    }

    .auth-panel-wrap {
        padding: 1.5rem;
        justify-content: flex-start;
        padding-bottom: 2rem;
    }

    /* max-width 420px tidak ikut menyusut oleh padding wrapper, jadi di layar
       sempit (mis. 430px) panel meluber ke kanan. Batasi ke lebar tersedia. */
    .auth-panel {
        max-width: 100%;
    }

    .auth-stage::after {
        background:
            radial-gradient(90% 60% at 50% 0%, rgba(27, 132, 255, .2), transparent 60%),
            linear-gradient(180deg, rgba(7, 11, 22, .45) 0%, rgba(7, 11, 22, .88) 55%);
    }

    body.auth-body {
        overflow: auto;
    }
}

@media (prefers-reduced-motion: reduce) {

    .auth-panel,
    .auth-badge .dot,
    .auth-title-logo {
        animation: none;
    }
}