.app-auth {
    min-height: calc(100vh - var(--app-bottom-offset));
    min-height: calc(100dvh - var(--app-bottom-offset));
    position: relative;
    overflow: hidden;
    padding: 8px var(--page-padding) 16px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(243, 246, 251, 0.92) 46%, #f3f6fb 100%),
        radial-gradient(120% 70% at 50% -10%, #7dd3fc 0%, #38bdf8 28%, #0ea5e9 48%, #0369a1 72%, #0f172a 100%);
}

.app-auth__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
}

.app-auth__lang {
    position: relative;
}

.app-auth__lang-toggle {
    height: 36px;
    padding: 0 12px;
    border: 0;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.78);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

.app-auth__lang-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 160px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-modal);
    padding: 8px 0;
    z-index: var(--z-sticky);
}

.app-auth__lang.is-open .app-auth__lang-menu {
    display: block;
}

.app-auth__lang-menu a {
    display: block;
    padding: 8px 14px;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    text-decoration: none;
}

.app-auth__brand {
    text-align: center;
    padding: 6px 8px 12px;
}

.app-auth__logo {
    width: 52px;
    height: 52px;
    margin: 0 auto 10px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.app-auth__title {
    margin: 0;
    font-size: var(--font-size-xl);
    line-height: 1.2;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.app-auth__subtitle {
    margin: 8px 0 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.app-auth__card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 16px 16px 14px;
}

.app-auth__switch {
    margin-top: 16px;
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.app-auth__switch a {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.app-auth__notice {
    display: none;
    margin-bottom: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: #fff7ed;
    color: #9a3412;
    font-size: var(--font-size-xs);
}

.app-auth__notice.is-visible {
    display: block;
}

.app-auth .invalid-feedback,
.app-auth .error {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin: 4px 2px 8px;
}

.app-auth .app-auth__extra {
    display: flex;
    gap: 10px;
}

.app-auth .app-auth__extra .app-input-wrap {
    flex: 1;
}

.app-auth .app-auth__terms {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin: 4px 0 14px;
}

.app-auth .app-auth__forgot {
    display: block;
    margin: -4px 0 14px;
    text-align: right;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
}

.app-auth-panel[hidden] {
    display: none !important;
}