/* AIoT SIMALAS — Auth Split-Screen Layout */

body.auth.auth-luxury.auth-split-page {
    background: #f1f5f9;
    min-height: 100vh;
}

body.auth.auth-luxury.auth-split-page::before {
    display: none;
}

/* ── Floating transparent top bar ── */
.auth-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 16px clamp(16px, 3vw, 32px);
    background: transparent;
    pointer-events: none;
}

.auth-topbar-actions,
.auth-topbar-back {
    pointer-events: auto;
}

.auth-topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.auth-topbar-lang {
    display: flex;
    gap: 2px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: 999px;
    padding: 3px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
}

.auth-topbar-lang .lang-btn {
    border: none;
    background: transparent;
    color: #64748b;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 999px;
    cursor: pointer;
    font-family: 'Inter', system-ui, sans-serif;
    transition: all 0.25s ease;
}

.auth-topbar-lang .lang-btn.active {
    background: linear-gradient(135deg, #1e40af, #2563eb);
    color: #fff;
}

.auth-topbar-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 13.5px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.9);
    color: #334155;
    text-decoration: none;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.1);
    transition: all 0.25s ease;
}

.auth-topbar-back:hover {
    border-color: #2563eb;
    background: #fff;
    color: #1e40af;
}

/* ── Theme toggle (dark / light) ── */
.auth-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.9);
    color: #334155;
    cursor: pointer;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.1);
    transition: all 0.25s ease;
}

.auth-theme-toggle:hover {
    border-color: #2563eb;
    background: #fff;
    color: #1e40af;
    transform: translateY(-1px);
}

.auth-theme-icon {
    width: 18px;
    height: 18px;
}

.auth-theme-icon[hidden] {
    display: none !important;
}

/* ── Staggered card entrance (ringan, GPU-friendly) ── */
@keyframes authStaggerFadeScale {
    from {
        opacity: 0;
        transform: scale(0.94);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes authStaggerFadeUp {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-stagger-pending .auth-stagger-item {
    opacity: 0;
    will-change: opacity, transform;
}

.auth-stagger-pending .auth-stagger-1 {
    animation: authStaggerFadeScale 0.42s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.04s;
}

.auth-stagger-pending .auth-stagger-2 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.1s;
}

.auth-stagger-pending .auth-stagger-3 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.18s;
}

.auth-stagger-pending .auth-stagger-4 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.26s;
}

.auth-stagger-pending .auth-stagger-5 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.34s;
}

.auth-stagger-pending .auth-stagger-6 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.42s;
}

.auth-stagger-pending .auth-stagger-7 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.5s;
}

.auth-stagger-pending .auth-stagger-8 {
    animation: authStaggerFadeUp 0.46s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.58s;
}

.auth-stagger-pending .auth-stagger-9 {
    animation: authStaggerFadeUp 0.44s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.66s;
}

/* ── Dark theme: hanya sisi kanan (form) ── */
body.auth-theme-dark .auth-split-form {
    background: #121212;
}

body.auth-theme-dark .auth-split-copy {
    color: #94a3b8;
}

body.auth-theme-dark .auth-luxury-shell .auth-card {
    background: #1e1e1e;
    border-color: rgba(71, 85, 105, 0.45);
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.55),
        0 0 0 1px rgba(71, 85, 105, 0.35);
}

body.auth-theme-dark .auth-card-brand {
    background: #1e1e1e;
}

body.auth-theme-dark .tab-bar {
    background: #262626;
    border-bottom-color: rgba(71, 85, 105, 0.4);
}

body.auth-theme-dark .tab-slider {
    background: #333333;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

body.auth-theme-dark .tab-btn {
    color: #94a3b8;
}

body.auth-theme-dark .tab-btn.active {
    color: #60a5fa;
}

body.auth-theme-dark .tab-btn:hover:not(.active) {
    color: #e2e8f0;
}

body.auth-theme-dark .card-header-text h2,
body.auth-theme-dark .form-label,
body.auth-theme-dark .remember-label {
    color: #f1f5f9;
}

body.auth-theme-dark .card-header-text p,
body.auth-theme-dark .card-footer-text,
body.auth-theme-dark .role-label-text small,
body.auth-theme-dark .form-group > p {
    color: #94a3b8;
}

body.auth-theme-dark .form-input {
    background: #2a2a2a;
    border-color: transparent;
    color: #f8fafc;
}

body.auth-theme-dark .form-input::placeholder {
    color: #64748b;
}

body.auth-theme-dark .form-input:focus {
    background: #333333;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3.5px rgba(59, 130, 246, 0.22);
}

body.auth-theme-dark .role-option label {
    background: #2a2a2a;
    color: #e2e8f0;
}

body.auth-theme-dark .role-option label:hover,
body.auth-theme-dark .role-option.is-hovered label {
    border-color: #60a5fa;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.28);
}

body.auth-theme-dark .role-option input:checked + label {
    background: rgba(37, 99, 235, 0.18);
    border-color: #3b82f6;
}

body.auth-theme-dark .password-toggle {
    color: #94a3b8;
}

body.auth-theme-dark .password-toggle:hover {
    color: #e2e8f0;
    background: rgba(59, 130, 246, 0.15);
}

body.auth-theme-dark .link-btn {
    color: #60a5fa;
}

body.auth-theme-dark .link-btn:hover {
    color: #93c5fd;
}

body.auth-theme-dark .auth-topbar-lang {
    background: rgba(30, 30, 30, 0.92);
    border-color: rgba(71, 85, 105, 0.45);
}

body.auth-theme-dark .auth-topbar-lang .lang-btn {
    color: #94a3b8;
}

body.auth-theme-dark .auth-theme-toggle,
body.auth-theme-dark .auth-topbar-back {
    background: rgba(30, 30, 30, 0.92);
    border-color: rgba(71, 85, 105, 0.45);
    color: #e2e8f0;
}

body.auth-theme-dark .auth-theme-toggle:hover,
body.auth-theme-dark .auth-topbar-back:hover {
    background: #262626;
    border-color: #3b82f6;
    color: #93c5fd;
}

@media (max-width: 900px) {
    body.auth-theme-dark .auth-split-form {
        background: #121212;
    }
}

/* ── Split screen grid ── */
.auth-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    width: 100%;
}

/* ── Left: campus hero ── */
.auth-split-hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(80px, 12vh, 120px) clamp(28px, 5vw, 56px) clamp(40px, 6vh, 64px);
    background-image: var(--auth-hero-img);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

.auth-split-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(17, 24, 39, 0.88) 0%,
        rgba(17, 24, 39, 0.55) 55%,
        rgba(17, 24, 39, 0.25) 100%
    );
    pointer-events: none;
}

.auth-split-hero-content {
    position: relative;
    z-index: 1;
    max-width: 480px;
    color: #f8fafc;
}

/* Hero text — fade + slideX dari kiri (setara flutter_animate) */
@keyframes authHeroSlideXIn {
    from {
        opacity: 0;
        transform: translateX(-18%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.auth-hero-anim-pending .auth-hero-anim {
    opacity: 0;
    will-change: opacity, transform;
}

.auth-hero-anim-pending .auth-hero-anim-1 {
    animation: authHeroSlideXIn 0.62s cubic-bezier(0, 0, 0.2, 1) forwards;
    animation-delay: 0ms;
}

.auth-hero-anim-pending .auth-hero-anim-2 {
    animation: authHeroSlideXIn 0.62s cubic-bezier(0, 0, 0.2, 1) forwards;
    animation-delay: 200ms;
}

.auth-hero-anim-pending .auth-hero-anim-3 {
    animation: authHeroSlideXIn 0.62s cubic-bezier(0, 0, 0.2, 1) forwards;
    animation-delay: 400ms;
}

.auth-hero-eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.95);
    margin-bottom: 14px;
}

.auth-hero-title {
    font-size: clamp(36px, 4.5vw, 52px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #f8fafc 0%, #38bdf8 55%, #60a5fa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.auth-hero-subtitle {
    font-size: clamp(15px, 1.6vw, 18px);
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 16px;
}

.auth-hero-desc {
    font-size: clamp(14px, 1.35vw, 16px);
    line-height: 1.65;
    color: rgba(203, 213, 225, 0.92);
}

/* ── Right: form column ── */
.auth-split-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: clamp(72px, 10vh, 96px) clamp(20px, 4vw, 48px) 32px;
    background: #f1f5f9;
}

.auth-luxury-shell {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

.auth-luxury-shell .auth-card {
    width: 100%;
    max-width: 480px;
    background: #ffffff;
    border-radius: 1rem;
    box-shadow:
        0 25px 50px -12px rgba(15, 23, 42, 0.18),
        0 0 0 1px rgba(148, 163, 184, 0.1);
    border: 1px solid rgba(226, 232, 240, 0.9);
    overflow: hidden;
}

.auth-card-brand {
    display: flex;
    justify-content: center;
    padding: 22px 24px 8px;
    background: #fff;
}

.auth-card-brand img {
    height: 52px;
    width: auto;
    max-width: min(72vw, 200px);
    object-fit: contain;
}

.auth-split-copy {
    margin-top: 20px;
    font-size: 12px;
    color: #94a3b8;
    text-align: center;
}

/* ── Login button + spinner ── */
.btn-login-submit {
    position: relative;
    overflow: hidden;
    min-height: 48px;
}

.btn-login-submit .login-btn-label,
.btn-login-submit .login-btn-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: opacity 0.25s ease;
}

.btn-login-submit .login-btn-spinner {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
}

.btn-login-submit.is-loading .login-btn-label {
    opacity: 0;
}

.btn-login-submit.is-loading .login-btn-spinner {
    opacity: 1;
}

.btn-login-submit:disabled {
    cursor: wait;
    transform: none !important;
}

.login-btn-spinner-ring {
    width: 22px;
    height: 22px;
    border: 2.5px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: loginSpin 0.75s linear infinite;
}

@keyframes loginSpin {
    to { transform: rotate(360deg); }
}

/* ── Full-screen login transition overlay ── */
.auth-login-transition {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0f172a;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.45s ease, visibility 0.45s ease;
    pointer-events: none;
}

.auth-login-transition.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.auth-login-transition__stage {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    overflow: hidden;
}

.auth-login-transition__mark {
    height: clamp(64px, 10vw, 96px);
    width: auto;
    max-width: min(40vw, 180px);
    object-fit: contain;
    opacity: 0;
    transform: scale(0.88);
    filter: drop-shadow(0 0 0 rgba(56, 189, 248, 0));
    transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.34, 1.2, 0.64, 1), filter 0.45s ease;
}

.auth-login-transition.is-logo-active .auth-login-transition__mark {
    opacity: 1;
    transform: scale(1);
    filter: drop-shadow(0 0 32px rgba(56, 189, 248, 0.55));
}

.auth-login-transition__title {
    font-size: clamp(1.35rem, 3.5vw, 1.85rem);
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #f8fafc;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    background: linear-gradient(90deg, #f8fafc 0%, #38bdf8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-left: 0;
    max-width: 0;
}

.auth-login-transition.is-text-visible .auth-login-transition__title {
    opacity: 1;
    transform: translateX(0);
    max-width: 20rem;
    margin-left: 14px;
}

/* ── Mobile: hide hero, form full width ── */
@media (max-width: 900px) {
    .auth-split {
        grid-template-columns: 1fr;
    }

    .auth-split-hero {
        display: none;
    }

    .auth-split-form {
        min-height: 100vh;
        background: #f1f5f9;
    }

    .auth-topbar-back {
        background: #fff;
        border-color: rgba(148, 163, 184, 0.3);
    }
}

@media (max-width: 640px) {
    .auth-topbar {
        padding: 10px 12px;
        padding-top: max(10px, env(safe-area-inset-top, 0px));
        justify-content: flex-end;
    }

    .auth-topbar-actions {
        gap: 6px;
        flex-wrap: nowrap;
        display: inline-flex;
        align-items: center;
        padding: 3px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.92);
        border: 1px solid rgba(148, 163, 184, 0.28);
        box-shadow: 0 2px 10px rgba(15, 23, 42, 0.08);
    }

    body.auth-theme-dark .auth-topbar-actions {
        background: rgba(30, 30, 30, 0.92);
        border-color: rgba(71, 85, 105, 0.45);
    }

    .auth-topbar-lang {
        padding: 2px;
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .auth-topbar-back span {
        display: none;
    }

    .auth-topbar-back {
        padding: 0;
        width: 34px;
        height: 34px;
        min-width: 34px;
        justify-content: center;
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .auth-topbar-back:hover {
        background: rgba(37, 99, 235, 0.1);
    }

    .auth-topbar-lang .lang-btn {
        padding: 5px 8px;
        font-size: 10px;
    }

    .auth-theme-toggle {
        width: 34px;
        height: 34px;
        flex-shrink: 0;
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .auth-theme-toggle:hover {
        background: rgba(37, 99, 235, 0.1);
        transform: none;
    }

    .auth-split-form {
        padding: 60px 12px 20px;
        justify-content: flex-start;
        min-height: 100dvh;
    }

    .auth-card-brand {
        padding: 12px 16px 4px;
    }

    .auth-card-brand img {
        height: 40px;
    }

    .auth-luxury-shell .auth-card {
        border-radius: 12px;
    }

    .auth-luxury-shell .auth-card .tab-btn {
        padding: 10px 10px;
        font-size: 13px;
    }

    .auth-luxury-shell .auth-card .card-body {
        padding: 16px 14px 14px;
    }

    .auth-luxury-shell .auth-card .card-header {
        margin-bottom: 14px;
    }

    .auth-luxury-shell .auth-card .card-header-text h2 {
        font-size: 16px;
    }

    .auth-luxury-shell .auth-card .card-header-text p {
        font-size: 12px;
    }

    .auth-luxury-shell .auth-card .form-group {
        margin-bottom: 12px;
    }

    .auth-luxury-shell .auth-card .form-input {
        padding: 11px 12px;
        font-size: 16px;
    }

    .auth-luxury-shell .auth-card .role-selector {
        flex-direction: row;
        gap: 8px;
    }

    .auth-luxury-shell .auth-card .role-selector--2 .role-option {
        min-width: 0;
    }

    .auth-luxury-shell .auth-card .role-option label {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        gap: 4px;
        padding: 10px 6px;
        font-size: 12px;
        min-height: 72px;
    }

    .auth-luxury-shell .auth-card .role-label-text small {
        font-size: 9px;
        line-height: 1.2;
    }

    .auth-luxury-shell .auth-card .btn-primary,
    .auth-luxury-shell .auth-card .btn-login-submit {
        padding: 12px;
        font-size: 14px;
    }

    .auth-luxury-shell .auth-card .remember-row {
        flex-wrap: wrap;
        gap: 8px;
    }

    .auth-split-copy {
        margin-top: 12px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .auth-split-form {
        padding: 56px 10px 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .tab-slider {
        transition: none;
    }

    .login-btn-spinner-ring {
        animation: none;
    }

    .auth-login-transition {
        transition: none;
    }

    .auth-login-transition__mark,
    .auth-login-transition__title {
        transition: none;
    }

    .auth-login-transition.is-logo-active .auth-login-transition__mark {
        opacity: 1;
        transform: scale(1);
    }

    .auth-login-transition.is-text-visible .auth-login-transition__title {
        opacity: 1;
        transform: translateX(0);
        max-width: 20rem;
        margin-left: 14px;
    }

    .auth-stagger-pending .auth-stagger-item {
        opacity: 1 !important;
        animation: none !important;
        transform: none !important;
    }

    .auth-hero-anim-pending .auth-hero-anim {
        opacity: 1 !important;
        animation: none !important;
        transform: none !important;
    }
}