.auth-shell {
    min-height: 100vh;
    background:
        radial-gradient(circle at 15% 0%, rgba(212, 160, 23, 0.15), transparent 45%),
        radial-gradient(circle at 100% 100%, rgba(212, 160, 23, 0.10), transparent 55%),
        var(--brand-ink);
    display: flex;
    align-items: center;
    padding: 3rem 1rem;
    font-family: var(--brand-font);
}

.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    font-size: 1.15rem;
    color: #fff;
}

.auth-brand .mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand-gold), #a9811a);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: .85rem;
    color: #17171c;
}

.auth-card {
    background: var(--brand-surface);
    border-radius: 20px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    padding: 2.25rem 2rem;
}

.auth-title {
    font-weight: 700;
    color: var(--brand-ink);
    margin-bottom: .25rem;
}

.auth-subtitle {
    color: var(--brand-muted);
    font-size: .92rem;
    margin-bottom: 1.75rem;
}

.auth-card .form-control {
    padding: .65rem .85rem;
    border-radius: 10px;
    border-color: var(--brand-border);
}

.auth-card .form-control:focus {
    border-color: var(--brand-gold);
    box-shadow: 0 0 0 0.2rem rgba(212, 160, 23, 0.18);
}

.auth-card .form-label {
    font-size: .85rem;
    font-weight: 600;
    color: var(--brand-ink);
}

.auth-submit {
    background: var(--brand-ink);
    border-color: var(--brand-ink);
    font-weight: 600;
    padding: .65rem 1rem;
    border-radius: 10px;
}

.auth-submit:hover,
.auth-submit:focus {
    background: var(--brand-ink-soft);
    border-color: var(--brand-ink-soft);
}

.auth-footer {
    text-align: center;
    margin-top: 1.25rem;
    font-size: .9rem;
    color: var(--brand-muted);
}

.auth-footer a {
    color: var(--brand-ink);
    font-weight: 600;
    text-decoration: none;
}

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