:root {
    --auth-ink: #172033;
    --auth-muted: #718096;
    --auth-primary: #3157d5;
    --auth-teal: #13b5a6;
    --auth-line: #e4ebf4;
}

body {
    background: #eef4fb;
}

.auth-shell {
    align-items: stretch;
    background:
        linear-gradient(135deg, rgba(49,87,213,.12), rgba(19,181,166,.10)),
        #eef4fb;
    display: grid;
    grid-template-columns: minmax(360px, 520px) 1fr;
    min-height: 100vh;
}

.auth-panel {
    align-items: center;
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.auth-card {
    background: rgba(255,255,255,.94);
    border: 1px solid rgba(228,235,244,.95);
    border-radius: 8px;
    box-shadow: 0 24px 70px rgba(31,42,68,.14);
    max-width: 430px;
    padding: 2rem;
    width: 100%;
}

.auth-brand {
    align-items: center;
    display: flex;
    gap: .85rem;
    margin-bottom: 1.4rem;
}

.auth-brand img {
    background: #fff;
    border: 1px solid var(--auth-line);
    border-radius: 8px;
    height: 52px;
    object-fit: contain;
    padding: .35rem;
    width: 52px;
}

.auth-brand strong {
    color: var(--auth-ink);
    display: block;
    font-size: 1.2rem;
    font-weight: 900;
}

.auth-brand span {
    color: var(--auth-muted);
    font-weight: 700;
}

.auth-card h1 {
    color: var(--auth-ink);
    font-size: 1.85rem;
    font-weight: 900;
    letter-spacing: 0;
    margin-bottom: .35rem;
}

.auth-subtitle {
    color: var(--auth-muted);
    margin-bottom: 1.5rem;
}

.auth-card .form-control {
    border-color: var(--auth-line);
    border-radius: 7px;
    min-height: 50px;
}

.auth-card .form-control:focus {
    border-color: var(--auth-primary);
    box-shadow: 0 0 0 .2rem rgba(49,87,213,.13);
}

.auth-card .form-label {
    color: #344054;
    font-weight: 800;
}

.auth-card .btn-primary {
    background: linear-gradient(135deg, var(--auth-primary), var(--auth-teal));
    border: 0;
    border-radius: 7px;
    box-shadow: 0 14px 26px rgba(49,87,213,.20);
    font-weight: 800;
    min-height: 50px;
    width: 100%;
}

.auth-visual {
    background:
        linear-gradient(135deg, rgba(17,24,39,.80), rgba(49,87,213,.52)),
        url("../images/banner.png") center/cover;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 3rem;
    position: relative;
}

.auth-visual-content {
    color: #fff;
    max-width: 640px;
}

.auth-visual-content h2 {
    color: #fff;
    font-size: 2.4rem;
    font-weight: 900;
    letter-spacing: 0;
    margin-bottom: .8rem;
}

.auth-visual-content p {
    color: rgba(255,255,255,.82);
    font-size: 1rem;
    margin: 0;
}

.auth-metrics {
    display: grid;
    gap: .8rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 1.5rem;
}

.auth-metric {
    background: rgba(255,255,255,.13);
    border: 1px solid rgba(255,255,255,.20);
    border-radius: 8px;
    padding: 1rem;
}

.auth-metric strong {
    color: #fff;
    display: block;
    font-size: 1.35rem;
}

.auth-metric span {
    color: rgba(255,255,255,.72);
    font-size: .85rem;
}

@media (max-width: 991.98px) {
    .auth-shell {
        grid-template-columns: 1fr;
    }

    .auth-visual {
        display: none;
    }

    .auth-panel {
        padding: 1rem;
    }
}