/* ChaabiHub top-bar alignment and previews — v260 */
@media (min-width: 769px) {
    .chaabi-desktop-topbar {
        align-items: center !important;
    }

    .chaabi-topbar-brand-zone,
    .chaabi-topbar-search,
    .chaabi-topbar-actions {
        align-self: center !important;
        margin-block: 0 !important;
    }

    .chaabi-topbar-actions {
        height: 44px;
        padding: 0 !important;
        transform: none;
    }

    .chaabi-topbar-actions > .chaabi-topbar-action,
    .chaabi-topbar-actions > .chaabi-topbar-account,
    .chaabi-topbar-actions > .login-pill {
        align-self: center !important;
        margin: 0 !important;
        inset-block: auto !important;
        line-height: 1;
    }

    .chaabi-topbar-actions > .chaabi-topbar-action,
    .chaabi-topbar-actions > .chaabi-topbar-account {
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
}

.chaabi-preview-popover {
    --preview-arrow-x: 330px;
    position: fixed;
    z-index: 2350;
    width: min(382px, calc(100vw - 24px));
    max-height: min(520px, calc(100vh - 92px));
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    overflow: visible;
    border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
    border-radius: 18px;
    background: var(--surface-raised, var(--panel));
    color: var(--text-primary, var(--text));
    box-shadow: 0 24px 66px rgba(2, 6, 23, .36);
    animation: chaabiPreviewIn .16s ease-out;
}

.chaabi-preview-popover::before {
    content: "";
    position: absolute;
    top: -7px;
    left: var(--preview-arrow-x);
    width: 13px;
    height: 13px;
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
    background: var(--surface-raised, var(--panel));
    transform: rotate(45deg);
}

.chaabi-preview-head {
    min-height: 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 15px;
    border-bottom: 1px solid var(--border-color);
}

.chaabi-preview-head h2 {
    margin: 0;
    color: var(--text-primary, var(--text));
    font-size: 16px;
    font-weight: 900;
}

.chaabi-preview-head a {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    padding-inline: 4px;
    color: var(--accent, #8b5cf6);
    font-size: 12px;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
}

.chaabi-preview-head a:hover,
.chaabi-preview-head a:focus-visible {
    text-decoration: underline;
    outline: none;
}

.chaabi-preview-list {
    min-height: 156px;
    max-height: 370px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--text-secondary) 40%, transparent) transparent;
}

.chaabi-preview-item {
    position: relative;
    min-height: 72px;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 10px 13px;
    border-bottom: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
    color: inherit;
    text-decoration: none;
    transition: background .14s ease;
}

.chaabi-preview-item:hover,
.chaabi-preview-item:focus-visible {
    background: var(--surface-hover, rgba(148, 163, 184, .12));
    outline: none;
}

.chaabi-preview-item.is-unread {
    background: color-mix(in srgb, var(--accent, #8b5cf6) 8%, transparent);
}

.chaabi-preview-item.is-unread:hover,
.chaabi-preview-item.is-unread:focus-visible {
    background: color-mix(in srgb, var(--accent, #8b5cf6) 13%, var(--surface-hover, transparent));
}

.chaabi-preview-avatar,
.chaabi-preview-brand-avatar {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg-secondary);
    color: #fff;
    font-weight: 950;
}

.chaabi-preview-brand-avatar {
    background: linear-gradient(135deg, #22d3ee, #8b5cf6 58%, #ec4899);
}

.chaabi-preview-copy {
    min-width: 0;
    display: grid;
    gap: 3px;
    text-align: start;
}

.chaabi-preview-copy strong,
.chaabi-preview-copy span,
.chaabi-preview-copy time {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chaabi-preview-copy strong {
    color: var(--text-primary, var(--text));
    font-size: 13px;
    font-weight: 800;
}

.chaabi-preview-copy span {
    color: var(--text-secondary, var(--muted));
    font-size: 12px;
    line-height: 1.35;
}

.chaabi-preview-copy time {
    color: var(--text-secondary, var(--muted));
    font-size: 10.5px;
    opacity: .82;
}

.chaabi-preview-item.is-unread .chaabi-preview-copy span {
    color: var(--text-primary, var(--text));
    font-weight: 650;
}

.chaabi-preview-meta {
    min-width: 24px;
    display: grid;
    justify-items: end;
    gap: 6px;
}

.chaabi-preview-type {
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent, #8b5cf6) 14%, transparent);
    color: var(--accent, #8b5cf6);
    font-size: 12px;
    font-weight: 900;
}

.chaabi-preview-unread {
    min-width: 18px;
    height: 18px;
    display: grid;
    place-items: center;
    padding: 0 4px;
    border-radius: 999px;
    background: var(--accent, #8b5cf6);
    color: #fff;
    font-size: 10px;
    font-weight: 900;
}

.chaabi-preview-unread[aria-label="Unread"] {
    width: 8px;
    min-width: 8px;
    height: 8px;
    padding: 0;
    font-size: 0;
}

.chaabi-preview-footer {
    min-height: 46px;
    display: flex;
    border-top: 1px solid var(--border-color);
}

.chaabi-preview-footer a {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0 0 18px 18px;
    color: var(--accent, #8b5cf6);
    font-size: 13px;
    font-weight: 900;
    text-decoration: none;
}

.chaabi-preview-footer a:hover,
.chaabi-preview-footer a:focus-visible {
    background: var(--surface-hover, rgba(148, 163, 184, .12));
    outline: none;
}

.chaabi-preview-empty,
.chaabi-preview-error {
    min-height: 156px;
    display: grid;
    place-items: center;
    padding: 24px;
    color: var(--text-secondary, var(--muted));
    text-align: center;
    font-size: 13px;
}

.chaabi-preview-error button {
    margin-top: 10px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--surface-solid, var(--surface-raised));
    color: var(--text-primary, var(--text));
    cursor: pointer;
}

.chaabi-preview-skeleton {
    min-height: 72px;
    display: grid;
    grid-template-columns: 44px 1fr;
    align-items: center;
    gap: 10px;
    padding: 10px 13px;
}

.chaabi-preview-skeleton::before,
.chaabi-preview-skeleton span {
    content: "";
    display: block;
    background: linear-gradient(90deg, var(--bg-secondary), var(--surface-hover), var(--bg-secondary));
    background-size: 200% 100%;
    animation: chaabiPreviewShimmer 1.25s linear infinite;
}

.chaabi-preview-skeleton::before {
    width: 44px;
    height: 44px;
    border-radius: 50%;
}

.chaabi-preview-skeleton span {
    height: 30px;
    border-radius: 9px;
}

@keyframes chaabiPreviewIn {
    from { opacity: 0; transform: translateY(-6px) scale(.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes chaabiPreviewShimmer {
    to { background-position: -200% 0; }
}

@media (max-width: 768px) {
    .chaabi-preview-popover {
        display: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .chaabi-preview-popover,
    .chaabi-preview-skeleton::before,
    .chaabi-preview-skeleton span {
        animation: none !important;
    }
}