.chat-link {
    color: #bfdbfe;
    text-decoration: underline;
    text-underline-offset: 2px;
    word-break: break-word;
}

.link-preview-card {
    margin-top: 10px;
    width: min(320px, 72vw);
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 18px;
    background: rgba(15, 23, 42, 0.42);
    overflow: hidden;
    backdrop-filter: blur(10px);
    cursor: pointer;
    text-align: left;
}

.link-preview-card.has-image {
    width: min(340px, 78vw);
}

.link-preview-card img {
    width: 100%;
    max-height: 160px;
    object-fit: cover;
    display: block;
    background: rgba(15, 23, 42, 0.72);
}

.link-preview-copy {
    padding: 12px 14px 13px;
}

.link-preview-host {
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #93c5fd;
}

.link-preview-title {
    margin-top: 6px;
    font-size: 0.92rem;
    font-weight: 800;
    color: #f8fafc;
    word-break: break-word;
}

.link-preview-body {
    margin-top: 6px;
    font-size: 0.78rem;
    line-height: 1.45;
    color: #cbd5e1;
    word-break: break-word;
}

.link-preview-cta {
    margin-top: 10px;
    font-size: 0.72rem;
    font-weight: 800;
    color: #bfdbfe;
}

.rich-viewer-modal {
    position: fixed;
    inset: 0;
    z-index: 3200;
    display: none;
    align-items: stretch;
    justify-content: stretch;
    background: rgba(2, 6, 23, 0.96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.rich-viewer-modal.active {
    display: flex;
}

.rich-viewer-modal.wide .rich-viewer-shell {
    padding: 0;
}

.rich-viewer-shell {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding:
        max(12px, env(safe-area-inset-top))
        max(12px, env(safe-area-inset-right))
        max(12px, env(safe-area-inset-bottom))
        max(12px, env(safe-area-inset-left));
    color: #f8fafc;
}

.rich-viewer-toolbar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 8px 2px 14px;
}

.rich-viewer-window {
    display: flex;
    align-items: center;
    gap: 8px;
}

.rich-viewer-window-btn {
    width: 14px;
    height: 14px;
    border: 0;
    border-radius: 999px;
    padding: 0;
    cursor: pointer;
}

.rich-viewer-window-btn.close {
    background: #ef4444;
}

.rich-viewer-window-btn.min {
    background: #f59e0b;
}

.rich-viewer-window-btn.max {
    background: #22c55e;
}

.rich-viewer-copy {
    min-width: 0;
}

.rich-viewer-copy strong {
    display: block;
    font-size: 1rem;
    font-weight: 800;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rich-viewer-copy span {
    display: block;
    margin-top: 4px;
    font-size: 0.76rem;
    color: #93c5fd;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rich-viewer-browserbar {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) repeat(2, 42px);
    gap: 8px;
    align-items: center;
}

.rich-viewer-address {
    min-width: 0;
    min-height: 42px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.72);
    padding: 0 16px;
    display: flex;
    align-items: center;
    color: #cbd5e1;
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rich-viewer-btn {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.72);
    color: #fff;
    cursor: pointer;
}

.rich-viewer-body {
    flex: 1;
    min-height: 0;
    border-radius: 26px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(15, 23, 42, 0.72);
    position: relative;
}

.rich-viewer-frame,
.rich-viewer-text {
    width: 100%;
    height: 100%;
    border: 0;
}

.rich-viewer-frame {
    background: #fff;
}

.rich-viewer-text {
    display: none;
    margin: 0;
    padding: 18px;
    overflow: auto;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    color: #e2e8f0;
    background: rgba(15, 23, 42, 0.92);
}

.rich-viewer-fallback {
    position: absolute;
    inset: auto 16px 16px 16px;
    border-radius: 18px;
    padding: 12px 14px;
    background: rgba(2, 6, 23, 0.82);
    border: 1px solid rgba(148, 163, 184, 0.18);
    color: #cbd5e1;
    font-size: 0.78rem;
    line-height: 1.45;
}

.image-modal-stage {
    position: relative;
    width: min(94vw, 1100px);
    height: min(78vh, calc(100vh - 150px));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px 18px 92px;
}

.rich-collage-source-hidden,
.rich-collage-hidden {
    display: none !important;
}

.rich-image-collage {
    width: min(320px, 78vw);
    aspect-ratio: 1 / 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin-bottom: 6px;
}

.rich-image-collage[data-count="2"] {
    aspect-ratio: 1.62 / 1;
    grid-template-rows: 1fr;
}

.rich-image-collage[data-count="3"] .rich-image-collage-item[data-slot="1"] {
    grid-row: 1 / span 2;
}

.rich-image-collage-item {
    position: relative;
    border: 0;
    padding: 0;
    border-radius: 18px;
    overflow: hidden;
    background: rgba(15, 23, 42, 0.55);
    cursor: pointer;
}

.rich-image-collage-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.rich-image-collage-more {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(2, 6, 23, 0.48);
    color: #fff;
    font-size: 2rem;
    font-weight: 800;
    backdrop-filter: blur(4px);
}

.image-modal-nav {
    position: static;
    transform: none;
    z-index: 3002;
    width: 48px;
    height: 48px;
    border: 0;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    cursor: pointer;
}

.image-modal-dock {
    position: absolute;
    left: 50%;
    bottom: max(14px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    z-index: 3002;
    width: min(92vw, 430px);
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) 48px;
    align-items: center;
    gap: 12px;
}

.image-modal-meta {
    position: static;
    transform: none;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.62);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
    max-width: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}

.message-pop[data-image-stack="start"] {
    margin-bottom: 6px !important;
}

.message-pop[data-image-stack="middle"] {
    margin-top: -2px;
    margin-bottom: 6px !important;
}

.message-pop[data-image-stack="end"] {
    margin-top: -2px;
}

body.theme-light .link-preview-card,
body.theme-light .rich-viewer-body {
    background: rgba(255, 255, 255, 0.96);
}

body.theme-light .link-preview-title,
body.theme-light .rich-viewer-copy strong,
body.theme-light .rich-viewer-address {
    color: #0f172a;
}

body.theme-light .link-preview-body,
body.theme-light .rich-viewer-fallback,
body.theme-light .rich-viewer-text {
    color: #475569;
}

body.theme-light .rich-viewer-fallback,
body.theme-light .rich-viewer-btn,
body.theme-light .rich-viewer-address,
body.theme-light .image-modal-meta {
    background: rgba(241, 245, 249, 0.92);
    color: #0f172a;
}

@media (max-width: 767px) {
    .link-preview-card,
    .link-preview-card.has-image {
        width: min(290px, 80vw);
    }

    .rich-viewer-browserbar {
        grid-template-columns: repeat(3, 40px);
        grid-template-areas:
            "reload share download"
            "address address address address address";
    }

    #richViewerReloadBtn {
        grid-area: reload;
    }

    #richViewerShareBtn {
        grid-area: share;
    }

    #richViewerDownloadBtn {
        grid-area: download;
    }

    .rich-viewer-address {
        grid-area: address;
    }

    .rich-image-collage {
        width: min(280px, 82vw);
        gap: 4px;
    }

    .image-modal-stage {
        width: min(96vw, 680px);
        height: min(74vh, calc(100vh - 132px));
        padding: 12px 10px 88px;
    }

    .image-modal-dock {
        width: min(92vw, 360px);
        grid-template-columns: 42px minmax(0, 1fr) 42px;
        gap: 10px;
    }

    .image-modal-nav {
        width: 42px;
        height: 42px;
    }
}