.auth-body {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    /* em vez de azul chapado */
    background: linear-gradient(180deg, #0B2A6F, #0B3FA8);
}

.auth-bg {
    position: absolute;
    inset: 0;
    /* reduz o peso do gradiente e deixa a onda aparecer */
    background-image: radial-gradient(1200px 700px at 10% 20%, rgba(255,255,255,.12), transparent 60%), linear-gradient(180deg, rgba(11,42,111,.78), rgba(11,63,168,.70)), url("/img/fundo-da-onda-azul.avif");
    background-size: cover;
    background-position: center;
    /* menos saturação, mais “premium” */
    filter: saturate(.95) contrast(.98);
}

.auth-shell {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 16px;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    padding: 28px;
    border: 1px solid rgba(255,255,255,.35);
}

    .auth-card .btn-primary {
        background: var(--primary);
        border-color: var(--primary);
        font-weight: 600;
        padding: 10px 14px;
        border-radius: 12px;
    }

    .auth-card .form-control {
        border-radius: 12px;
        padding: 10px 12px;
    }

.auth-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

    .auth-brand .logo {
        width: 34px;
        height: 34px;
        border-radius: 10px;
        background: var(--primary-100);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        font-weight: 800;
    }

    .auth-brand .name {
        font-size: 18px;
        font-weight: 800;
        letter-spacing: .2px;
    }
1