.auth-shell {
    min-height: calc(100dvh - 9rem);
    display: grid;
    place-items: center;
    padding: 1rem;
}

.auth-card {
    width: min(26rem, 100%);
    border: 1px solid rgba(23, 49, 77, 0.12);
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 24px 50px rgba(23, 49, 77, 0.16);
    padding: 1.5rem;
}

.auth-brand {
    text-align: center;
    margin-bottom: 1rem;
}

.auth-brand h1,
.auth-brand h2 {
    margin-bottom: 0.3rem;
    font-size: 1.4rem;
}

.auth-provider-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    width: 100%;
    border-radius: 0.7rem;
    padding: 0.72rem 0.9rem;
    font-weight: 700;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.auth-provider-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
}

.auth-provider-btn.auth-provider-google {
    border: 1px solid #bcc6d4;
    background: #fff;
    color: #1f2937;
}

.auth-provider-btn.auth-provider-google span {
    font-weight: 700;
}

.auth-provider-btn.auth-provider-disabled {
    border-style: dashed;
    opacity: 0.78;
    box-shadow: none;
    cursor: not-allowed;
}

.auth-provider-btn.auth-provider-disabled:hover {
    transform: none;
    box-shadow: none;
}

.auth-provider-hint {
    margin: 0.1rem 0 0.85rem;
    padding: 0.55rem 0.75rem;
    border-radius: 0.65rem;
    border: 1px solid #f2d7a5;
    background: #fff6e8;
    color: #8a5a06;
    font-size: 0.82rem;
}

.auth-divider {
    text-align: center;
    color: #64748b;
    font-size: 0.86rem;
    margin: 0.8rem 0;
    position: relative;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 32%;
    border-top: 1px solid #d7dde5;
}

.auth-divider::before {
    left: 0;
}

.auth-divider::after {
    right: 0;
}

@media (max-width: 575.98px) {
    .auth-shell {
        min-height: calc(100dvh - 7rem);
    }

    .auth-card {
        padding: 1.1rem;
    }
}