.auth {
    min-height: calc(100vh - 4rem);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    background-color: var(--color-body);
}

.auth__container {
    width: min(480px, 100%);
}

.auth-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem clamp(1.5rem, 3vw, 2.25rem);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.auth-card__header {
    text-align: center;
}

.auth-card__logo {
    margin: 0 auto 1rem;
}

.auth-card__title {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
}

.auth-card__subtitle {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.auth-tabs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    background: var(--color-surface-alt);
    border-radius: var(--radius-md);
    padding: 0.35rem;
}

.auth-tabs__tab {
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    padding: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
    color: var(--color-text-muted);
}

    .auth-tabs__tab.is-active {
        background: var(--color-surface);
        color: var(--color-text);
        box-shadow: var(--shadow-sm);
    }

.auth-panels {
    position: relative;
}

.auth-panel {
    display: none;
    animation: fadeIn 0.2s ease;
}

    .auth-panel.is-active {
        display: block;
    }

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.auth-form__summary {
    color: #b91c1c;
    font-size: 0.88rem;
    min-height: 1rem;
}

.auth-form__group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.auth-form__label {
    font-size: 0.95rem;
    font-weight: 600;
}

.auth-input {
    display: flex;
    align-items: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding-inline: 0.75rem;
    direction: ltr;
}

.auth-input--phone {
    padding-inline: 0;
}

.auth-input--email {
    border: 1px solid var(--color-border)!important;
    border-radius: var(--radius-md);
    text-align: left;
}

.auth-input__prefix {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding-inline: 0.75rem;
    border-right: 1px solid var(--color-border);
    font-weight: 600;
}

.auth-input__field {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.85rem 0.9rem;
    font-size: 1rem;
    color: var(--color-text);
}

    .auth-input__field:focus {
        outline: 2px solid rgba(79, 70, 229, 0.3);
        border-radius: var(--radius-md);
    }

.auth-form__error {
    color: #dc2626;
    font-size: 0.82rem;
    min-height: 1rem;
}

.auth-form__options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.auth-checkbox__control {
    accent-color: var(--color-primary);
    width: 1rem;
    height: 1rem;
}

.auth-form__submit {
    width: 100%;
    margin-top: 0.5rem;
}

.auth-link {
    color: var(--color-primary);
    font-weight: 600;
}

.auth-link--muted {
    color: var(--color-text-muted);
    font-weight: 500;
}

.social-login {
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
}

.social-login__title {
    font-size: 1rem;
    margin: 0 0 0.75rem;
}

.social-login__list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.social-login__btn {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    background: transparent;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.2s ease, transform 0.2s ease;
}

    .social-login__btn:hover {
        background: var(--color-surface-alt);
        transform: translateY(-1px);
    }

.social-login__empty {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.auth-footer {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    text-align: center;
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
}

@media (min-width: 640px) {
    .auth-card {
        padding: 2.5rem 3rem;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}