.auth-body {
    min-height: 100vh;
    margin: 0;
    background: radial-gradient(120% 80% at 80% 20%, #1d3a8a 0%, #050b25 60%) fixed;
    color: #f5f7ff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(320px, 480px) 1fr;
    gap: 0;
    align-items: stretch;
}

@media (max-width: 900px) {
    .auth-shell {
        grid-template-columns: 1fr;
    }
    .auth-aside { display: none; }
}

.auth-card {
    background: rgba(8, 14, 36, 0.85);
    backdrop-filter: blur(14px);
    padding: 3.5rem 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #f5f7ff;
    border-right: 1px solid rgba(255, 255, 255, 0.04);
}

.auth-header { margin-bottom: 2rem; }

.auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    text-decoration: none;
}

.auth-brand-mark {
    background: linear-gradient(135deg, #4d6cff, #b14dff);
    color: white;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
    box-shadow: 0 8px 18px rgba(80, 80, 200, 0.4);
}

.auth-tagline {
    margin-top: 0.85rem;
    margin-bottom: 0;
    color: rgba(245, 247, 255, 0.7);
    font-size: 0.95rem;
}

.auth-form .form-label {
    color: rgba(245, 247, 255, 0.8);
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
}

.auth-form .form-control,
.auth-form .form-control:focus {
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 0.55rem;
    height: 2.85rem;
    padding-left: 0.85rem;
}

.auth-form .form-control:focus {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(140, 165, 255, 0.7);
    box-shadow: 0 0 0 4px rgba(110, 130, 255, 0.18);
}

.auth-form .form-check-label {
    color: rgba(245, 247, 255, 0.85);
}

.auth-form .btn-primary {
    height: 2.85rem;
    background: linear-gradient(135deg, #4d6cff, #b14dff);
    border: 0;
    border-radius: 0.55rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    box-shadow: 0 12px 30px rgba(80, 100, 220, 0.35);
}

.auth-form .alert-danger {
    background: rgba(255, 70, 90, 0.18);
    border: 1px solid rgba(255, 70, 90, 0.35);
    color: #ffd9de;
    border-radius: 0.55rem;
}

.auth-footer {
    margin-top: 1.6rem;
    color: rgba(245, 247, 255, 0.65);
    font-size: 0.9rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.auth-footer a {
    color: #b4c4ff;
    text-decoration: none;
}

.auth-footer a:hover { text-decoration: underline; }

.auth-aside {
    padding: 4rem 5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: rgba(245, 247, 255, 0.92);
}

.auth-aside h2 {
    font-size: 2.4rem;
    line-height: 1.05;
    margin-bottom: 1rem;
    font-weight: 700;
}

.auth-aside p {
    color: rgba(245, 247, 255, 0.7);
    font-size: 1.05rem;
    max-width: 36rem;
}

.auth-aside-list {
    margin-top: 2rem;
    padding-left: 1.2rem;
    color: rgba(245, 247, 255, 0.75);
}

.auth-aside-list li { margin-bottom: 0.6rem; }