:root {
    --aiu-dark: #07111f;
    --aiu-navy: #0b1220;
    --aiu-blue: #2563eb;
    --aiu-cyan: #06b6d4;
    --aiu-text: #0f172a;
    --aiu-muted: #64748b;
}

body.aiunify-login-page {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, .25), transparent 34%),
        radial-gradient(circle at bottom right, rgba(79, 70, 229, .25), transparent 38%),
        linear-gradient(135deg, var(--aiu-dark) 0%, var(--aiu-navy) 45%, #101827 100%);
    color: #ffffff;
    overflow-x: hidden;
}

.aiu-auth-wrap {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    position: relative;
}

.aiu-client-login-shell {
    margin: -40px calc(50% - 50vw) -60px;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, .24), transparent 34%),
        radial-gradient(circle at bottom right, rgba(79, 70, 229, .22), transparent 38%),
        linear-gradient(135deg, var(--aiu-dark) 0%, var(--aiu-navy) 45%, #101827 100%);
    color: #ffffff;
}

.aiu-brand-panel {
    position: relative;
    padding: 64px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.aiu-brand-panel:before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(59, 130, 246, .28), rgba(34, 211, 238, .08));
    filter: blur(4px);
    top: -180px;
    left: -120px;
}

.aiu-brand-panel:after {
    content: "";
    position: absolute;
    inset: 28px;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 34px;
    pointer-events: none;
}

.aiu-brand-content {
    position: relative;
    z-index: 2;
    max-width: 640px;
}

.aiu-logo {
    max-width: 260px;
    max-height: 100px;
    object-fit: contain;
    display: block;
    margin-bottom: 42px;
}

.aiu-logo-fallback {
    display: none;
    color: #ffffff;
    font-size: 30px;
    font-weight: 900;
    letter-spacing: .08em;
    margin-bottom: 42px;
}

.aiu-eyebrow {
    color: #67e8f9;
    font-size: 13px;
    letter-spacing: .22em;
    text-transform: uppercase;
    font-weight: 900;
    margin-bottom: 18px;
}

.aiu-brand-content h1 {
    color: #ffffff;
    font-size: clamp(42px, 5vw, 72px);
    line-height: .96;
    font-weight: 900;
    letter-spacing: -0.06em;
    margin: 0 0 24px;
}

.aiu-copy {
    color: rgba(255, 255, 255, .72);
    font-size: 18px;
    line-height: 1.75;
    max-width: 560px;
    margin-bottom: 34px;
}

.aiu-feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    max-width: 560px;
}

.aiu-feature {
    border: 1px solid rgba(255, 255, 255, .10);
    background: rgba(255, 255, 255, .055);
    border-radius: 18px;
    padding: 18px;
    backdrop-filter: blur(12px);
}

.aiu-feature strong {
    display: block;
    color: #ffffff;
    font-size: 14px;
    margin-bottom: 6px;
}

.aiu-feature span {
    display: block;
    color: rgba(255, 255, 255, .62);
    font-size: 13px;
    line-height: 1.5;
}

.aiu-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 42px;
    position: relative;
    z-index: 3;
}

.aiu-card {
    width: 100%;
    max-width: 470px;
    background: rgba(255, 255, 255, .96);
    color: var(--aiu-text);
    border-radius: 30px;
    box-shadow: 0 28px 80px rgba(0, 0, 0, .35);
    padding: 38px;
    border: 1px solid rgba(255, 255, 255, .55);
}

.aiu-card-head {
    margin-bottom: 28px;
}

.aiu-pill {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: #e0f2fe;
    color: #0369a1;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.aiu-card h2 {
    color: var(--aiu-text);
    font-size: 30px;
    line-height: 1.1;
    letter-spacing: -0.04em;
    font-weight: 900;
    margin: 0 0 8px;
}

.aiu-card p {
    color: var(--aiu-muted);
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
}

.aiu-card .form-group {
    margin-bottom: 22px;
}

.aiu-card .control-label {
    color: #334155;
    font-weight: 800;
    font-size: 13px;
    letter-spacing: .01em;
}

.aiu-card .form-control {
    min-height: 50px;
    border-radius: 14px;
    border: 1px solid #dbe3ef;
    background: #f8fafc;
    color: var(--aiu-text);
    box-shadow: none;
    transition: all .18s ease;
}

.aiu-card .form-control:focus {
    border-color: var(--aiu-blue);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
}

.aiu-card a {
    color: var(--aiu-blue);
    font-weight: 700;
}

.aiu-card .btn-primary {
    min-height: 52px;
    border-radius: 15px;
    border: 0;
    background: linear-gradient(135deg, var(--aiu-blue), var(--aiu-cyan));
    box-shadow: 0 16px 28px rgba(37, 99, 235, .25);
    font-weight: 900;
    letter-spacing: .02em;
}

.aiu-card .btn-primary:hover,
.aiu-card .btn-primary:focus {
    background: linear-gradient(135deg, #1d4ed8, #0e7490);
}

.aiu-bottom-note {
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
    color: var(--aiu-muted);
    font-size: 13px;
    line-height: 1.6;
    text-align: center;
}

.aiu-mobile-logo {
    display: none;
    text-align: center;
    margin-bottom: 22px;
}

.aiu-mobile-logo img {
    max-width: 210px;
    max-height: 80px;
    object-fit: contain;
}

@media (max-width: 992px) {
    .aiu-auth-wrap {
        grid-template-columns: 1fr;
    }

    .aiu-brand-panel {
        display: none;
    }

    .aiu-form-panel {
        min-height: 100vh;
        padding: 24px;
    }

    .aiu-mobile-logo {
        display: block;
    }

    .aiu-card {
        padding: 30px 24px;
        border-radius: 24px;
    }
}