.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.auth-modal.hidden {
    display: none;
}

.auth-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.auth-modal__panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 1.75rem;
    border-radius: 1.5rem;
    border: 1px solid color-mix(in srgb, var(--auth-primary) 30%, transparent);
    box-shadow: 0 0 40px var(--auth-glow);
}

.auth-modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--auth-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
}

.auth-modal__close:hover {
    color: var(--auth-primary);
}

.auth-modal__header {
    text-align: center;
    margin-bottom: 1.25rem;
}

.auth-modal__logo {
    max-width: 140px;
    width: 100%;
    height: auto;
    margin: 0 auto 1rem;
    filter: drop-shadow(0 0 16px var(--auth-glow));
}

.auth-modal__title {
    font-family: Sora, sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.25rem;
}

.auth-modal__subtitle {
    font-size: 0.875rem;
    color: var(--auth-muted);
}

.auth-modal__tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    padding: 0.25rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 0.75rem;
}

.auth-tab {
    padding: 0.625rem 1rem;
    border: none;
    border-radius: 0.5rem;
    background: transparent;
    color: var(--auth-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
}

.auth-tab--active {
    background: color-mix(in srgb, var(--auth-primary) 15%, transparent);
    color: var(--auth-primary);
    font-weight: 600;
}

.auth-alert {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    background: rgba(255, 80, 80, 0.12);
    border: 1px solid rgba(255, 80, 80, 0.35);
    color: #ffb4ab;
}

.auth-alert.hidden {
    display: none;
}

.auth-alert--success {
    background: color-mix(in srgb, var(--auth-primary) 12%, transparent);
    border-color: color-mix(in srgb, var(--auth-primary) 35%, transparent);
    color: var(--auth-primary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.auth-form.hidden {
    display: none;
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.auth-field span {
    font-size: 0.75rem;
    color: var(--auth-muted);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.03em;
}

.auth-field input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.625rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    font-size: 1rem;
}

.auth-field input:focus {
    outline: none;
    border-color: color-mix(in srgb, var(--auth-primary) 50%, transparent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--auth-primary) 20%, transparent);
}

.auth-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    border: none;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.auth-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-btn--primary {
    background: var(--auth-primary);
    color: var(--auth-on-primary);
}

.auth-btn--primary:hover:not(:disabled) {
    box-shadow: 0 0 20px var(--auth-glow);
}

.auth-link {
    display: block;
    width: 100%;
    margin-top: 0.75rem;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--auth-muted);
    font-size: 0.8125rem;
    text-align: center;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.auth-link:hover {
    color: var(--auth-primary);
}

.auth-form__hint {
    margin: 0 0 1rem;
    font-size: 0.875rem;
    color: var(--auth-muted);
    line-height: 1.5;
    text-align: center;
}

.auth-modal__tabs.hidden {
    display: none;
}

[data-auth-social].hidden {
    display: none;
}

.auth-btn--apple {
    background: #000;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.auth-btn--apple:hover:not(:disabled) {
    background: #111;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.25rem 0;
    color: var(--auth-muted);
    font-size: 0.75rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.auth-social {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.auth-google-slot {
    display: flex;
    justify-content: center;
    min-height: 44px;
}

.auth-user-chip {
    display: none;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem 0.625rem 0.375rem 0.75rem;
    border-radius: 9999px;
    background: color-mix(in srgb, var(--auth-primary, #a1fbff) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--auth-primary, #a1fbff) 25%, transparent);
    color: #fff;
    font-size: 0.8125rem;
    max-width: 180px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.auth-user-chip:hover {
    background: color-mix(in srgb, var(--auth-primary, #a1fbff) 18%, transparent);
    border-color: color-mix(in srgb, var(--auth-primary, #a1fbff) 40%, transparent);
}

.auth-user-chip--visible {
    display: inline-flex;
}

.auth-user-chip__name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.auth-user-chip__icon {
    font-size: 1.125rem;
    color: var(--auth-muted, #c0caff);
    flex-shrink: 0;
}

.user-menu-modal,
.user-confirm-modal {
    position: fixed;
    inset: 0;
    z-index: 110;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.user-menu-modal.hidden,
.user-confirm-modal.hidden {
    display: none;
}

.user-confirm-modal {
    z-index: 120;
}

.user-menu-modal__backdrop,
.user-confirm-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
}

.user-menu-modal__panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 320px;
    padding: 1rem;
    border-radius: 1rem;
}

.user-menu-modal__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 0.875rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.user-menu-modal__title {
    font-weight: 700;
    color: #fff;
    font-size: 0.9375rem;
}

.user-menu-modal__subtitle {
    font-size: 0.75rem;
    color: var(--on-surface-variant, #c0caff);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 220px;
}

.user-menu-modal__nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.user-menu-modal__item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    width: 100%;
    padding: 0.75rem 0.875rem;
    border: none;
    border-radius: 0.625rem;
    background: transparent;
    color: #fff;
    font-size: 0.9375rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s;
}

.user-menu-modal__item:hover {
    background: rgba(255, 80, 80, 0.12);
    color: #ffb4ab;
}

.user-confirm-modal__panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 360px;
    padding: 1.5rem;
    border-radius: 1rem;
    text-align: center;
}

.user-confirm-modal__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.user-confirm-modal__text {
    font-size: 0.875rem;
    color: var(--on-surface-variant, #c0caff);
    margin-bottom: 1.25rem;
}

.user-confirm-modal__actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.user-confirm-modal__btn {
    padding: 0.625rem 1.125rem;
    border-radius: 0.625rem;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.user-confirm-modal__btn--ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.user-confirm-modal__btn--ghost:hover {
    background: rgba(255, 255, 255, 0.06);
}

.user-confirm-modal__btn--danger {
    background: rgba(255, 80, 80, 0.2);
    border: 1px solid rgba(255, 80, 80, 0.45);
    color: #ffb4ab;
}

.user-confirm-modal__btn--danger:hover {
    background: rgba(255, 80, 80, 0.3);
}

#btn-login.hidden {
    display: none;
}