.slds-id-auth {
    display: grid;
    gap: 18px;
    margin: 0 0 28px;
}

.slds-id-auth__title {
    margin: 0;
    color: #171717;
    font-size: 24px;
    font-weight: 500;
    line-height: 1.2;
    text-align: center;
}

.slds-id-auth__phone,
.slds-id-auth__providers {
    display: grid;
    gap: 12px;
}

.slds-id-auth__label,
.slds-id-auth__consent {
    color: #8c8c8c;
    font-size: 14px;
    line-height: 1.45;
    text-align: center;
}

.slds-id-auth__input {
    width: 100%;
    min-height: 52px;
    padding: 0 16px;
    border: 1px solid #d7d7d7;
    border-radius: 4px;
    background: #fff;
    color: #171717;
    font-size: 18px;
    outline: none;
}

.slds-id-auth__input:focus {
    border-color: #171717;
}

.slds-id-auth__input.is-invalid {
    border-color: #d63638;
}

.slds-id-auth__field-error,
.slds-id-auth__notice {
    color: #d63638;
    font-size: 13px;
    line-height: 1.35;
}

.slds-id-auth__field-error:empty {
    display: none;
}

.slds-id-auth__notice {
    padding: 10px 12px;
    border: 1px solid #f0b7b8;
    border-radius: 4px;
    background: #fff4f4;
}

.slds-id-auth__button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 52px;
    padding: 0 18px;
    border: 0;
    border-radius: 4px;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: opacity .2s ease;
}

.slds-id-auth__button:hover {
    color: #fff;
    opacity: .86;
}

.slds-id-auth__button_continue,
.slds-id-auth__button_yandex {
    background: #050505;
}

.slds-id-auth__button_sber {
    background: #21a038;
}

.slds-id-auth__button_vk {
    background: #0077ff;
}

.slds-id-auth__provider-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    margin-right: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .95);
    color: #171717;
    font-size: 12px;
    font-weight: 700;
}

.slds-id-auth__divider,
.slds-id-auth__legacy-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #a5a5a5;
    font-size: 13px;
    text-align: center;
}

.slds-id-auth__divider::before,
.slds-id-auth__divider::after,
.slds-id-auth__legacy-divider::before,
.slds-id-auth__legacy-divider::after {
    height: 1px;
    flex: 1;
    background: #e6e6e6;
    content: '';
}

.slds-id-auth__consent {
    margin: 0;
}

.slds-id-auth__consent a {
    color: inherit;
    text-decoration: underline;
}

.slds-id-auth [hidden] { display: none !important; }
.slds-id-auth:has(+ .slds-id-auth__legacy) { margin-bottom: 8px; }
.slds-id-auth__legacy { width: 100%; }
.slds-id-auth__legacy-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 8px;
    color: #777;
    font-size: 14px;
    line-height: 1.4;
    cursor: pointer;
    list-style: none;
}
.slds-id-auth__legacy-toggle::-webkit-details-marker { display: none; }
.slds-id-auth__legacy-toggle::after {
    content: '';
    width: 6px;
    height: 6px;
    border-right: 1px solid currentColor;
    border-bottom: 1px solid currentColor;
    transform: rotate(45deg);
}
.slds-id-auth__legacy-toggle:hover { color: #171717; }
.slds-id-auth__legacy-toggle:focus-visible { outline: 2px solid #ff6b00; outline-offset: 2px; border-radius: 6px; }
.slds-id-auth__legacy[open] > .slds-id-auth__legacy-toggle { margin-bottom: 18px; }
.slds-id-auth__legacy[open] > .slds-id-auth__legacy-toggle::after { transform: rotate(225deg); }

.slds-id-auth_popup {
    margin-bottom: 20px;
}

.checkout-form_auth-gate {
    max-width: 560px;
    margin: 48px auto;
    padding: 0 20px;
}

.slds-id-auth_checkout {
    padding: 32px;
    border: 1px solid #e6e6e6;
    border-radius: 8px;
    background: #fff;
}

.slds-id-auth__checkout-copy {
    margin: 0;
    color: #666;
    font-size: 15px;
    line-height: 1.5;
    text-align: center;
}

.slds-id-auth__guest-button {
    width: 100%;
    padding: 12px 18px;
    border: 0;
    background: transparent;
    color: #666;
    font-size: 14px;
    text-decoration: underline;
    cursor: pointer;
}

@media (max-width: 767px) {
    .slds-id-auth__title {
        font-size: 20px;
    }

    .slds-id-auth_checkout {
        padding: 24px 16px;
    }
}