:root {
    --deep-research-accent: var(--accent-color, var(--text-link));
    --deep-research-transition: 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* The chat only carries a compact launch/status card. The report itself lives
   in the dedicated detail sidebar below. */
.deep-research-widget {
    position: relative;
    display: grid;
    grid-template-columns: 2.5rem minmax(0, 1fr) 1.25rem;
    gap: 0.8rem;
    align-items: start;
    width: 100%;
    margin-block: 0.65rem;
    padding: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius, 8px) + 4px);
    background: var(--background-color-secondary, var(--surface-elevated));
    color: var(--text-color);
}

.deep-research-widget::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: 3px;
    background: var(--deep-research-accent);
    content: "";
}

.deep-research-widget[data-status="completed"]::before {
    background: var(--success-color, #2e9b63);
}

.deep-research-widget[data-status="failed"]::before,
.deep-research-widget[data-status="error"]::before {
    background: var(--error-color);
}

.deep-research-widget[data-status="cancelled"]::before {
    background: var(--text-color-tertiary, var(--text-color-secondary));
}

.deep-research-card-icon {
    display: grid;
    place-items: center;
    color: var(--deep-research-accent);
}

.deep-research-card-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.75rem;
    background: color-mix(in srgb, var(--deep-research-accent) 12%, transparent);
}

.deep-research-card-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.deep-research-card-body {
    display: grid;
    min-width: 0;
    gap: 0.45rem;
}

.deep-research-card-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.deep-research-title {
    margin: 0;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 650;
    line-height: 1.35;
}

.deep-research-status {
    flex: 0 0 auto;
    max-width: 55%;
    overflow: hidden;
    color: var(--deep-research-accent);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.4;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.deep-research-query {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    color: var(--text-color);
    font-size: 0.86rem;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.deep-research-progress {
    width: 100%;
    height: 0.3rem;
    overflow: hidden;
    border-radius: 999px;
    background: var(--border-color);
}

.deep-research-progress-bar {
    display: block;
    width: 4%;
    height: 100%;
    border-radius: inherit;
    background: var(--deep-research-accent);
    transition: width var(--deep-research-transition);
}

.deep-research-open {
    justify-self: start;
    min-height: 2rem;
    margin-top: 0.15rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--deep-research-accent);
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
}

.deep-research-card-chevron {
    display: grid;
    align-self: center;
    place-items: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--text-color-secondary);
    cursor: pointer;
}

.deep-research-card-chevron svg {
    width: 1rem;
    height: 1rem;
    transition: transform var(--deep-research-transition);
}

.deep-research-card-chevron[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.deep-research-card-chevron:focus-visible {
    outline: 2px solid var(--deep-research-accent);
    outline-offset: 2px;
}

.deep-research-error {
    margin: 0;
    color: var(--error-color);
    font-size: 0.78rem;
    line-height: 1.4;
}

/* Research sidebar */
.deep-research-sidebar {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 40;
    display: flex;
    flex-direction: column;
    width: clamp(
        var(--canvas-markdown-preview-min-width),
        var(--canvas-markdown-preview-width),
        calc(100vw - var(--canvas-markdown-preview-min-main-width))
    );
    min-width: var(--canvas-markdown-preview-min-width);
    max-width: none;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    border-left: 1px solid var(--border-color);
    background: var(--background);
    opacity: 0;
    pointer-events: none;
    transform: translateX(100%);
    transition:
        transform var(--deep-research-transition),
        opacity var(--deep-research-transition),
        width 0.18s ease;
}

.deep-research-sidebar.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
}

body.deep-research-preview-open .main-container {
    margin-right: clamp(
        var(--canvas-markdown-preview-min-width),
        var(--canvas-markdown-preview-width),
        calc(100vw - var(--canvas-markdown-preview-min-main-width))
    );
    transition: margin-right var(--deep-research-transition);
}

body.canvas-markdown-preview-resizing .deep-research-sidebar {
    transition: none !important;
}

.deep-research-sidebar-header {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    box-sizing: border-box;
    height: 50px;
    min-height: 50px;
    padding: 0.65rem 1rem;
    background: var(--background);
    border-bottom: 1px solid var(--border-color);
}

.deep-research-sidebar-heading {
    min-width: 0;
}

.deep-research-sidebar-heading h2 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.05rem;
    line-height: 1.35;
}

.deep-research-sidebar-close {
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border: 0;
    border-radius: 0.6rem;
    background: transparent;
    color: var(--text-color-secondary);
    cursor: pointer;
}

.deep-research-sidebar-close svg {
    width: 1.15rem;
    height: 1.15rem;
}

.deep-research-sidebar-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    border-bottom: 1px solid var(--border-color);
}

.deep-research-sidebar-summary {
    display: grid;
    gap: 0.55rem;
    padding: 0.9rem 1.4rem 0.8rem;
}

.deep-research-query-disclosure {
    min-width: 0;
    border-top: 1px solid var(--border-color);
}

.deep-research-query-disclosure summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-top: 0.55rem;
    color: var(--text-color-secondary);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.4;
    cursor: pointer;
    list-style: none;
}

.deep-research-query-disclosure summary::-webkit-details-marker {
    display: none;
}

.deep-research-query-chevron {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 1rem;
    height: 1rem;
}

.deep-research-query-chevron svg {
    width: 1rem;
    height: 1rem;
    transition: transform var(--deep-research-transition);
}

.deep-research-query-disclosure[open] .deep-research-query-chevron svg {
    transform: rotate(180deg);
}

.deep-research-sidebar-query {
    margin: 0.55rem 0 0;
    padding: 0.65rem 0.75rem;
    border-radius: var(--border-radius, 8px);
    background: var(--background-color-secondary);
    color: var(--text-color);
    font-size: 0.8rem;
    line-height: 1.45;
    white-space: pre-wrap;
}

.deep-research-sidebar-error {
    margin: 0;
    color: var(--error-color);
    font-size: 0.74rem;
    line-height: 1.4;
}

.deep-research-tabs {
    position: sticky;
    top: 0;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-inline: 1.4rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--background);
}

.deep-research-tabs button {
    position: relative;
    min-width: 0;
    min-height: 2.85rem;
    padding: 0.65rem 0.35rem;
    overflow: hidden;
    border: 0;
    background: transparent;
    color: var(--text-color-secondary);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
}

.deep-research-tabs button[aria-selected="true"] {
    color: var(--text-color);
}

.deep-research-tabs button[aria-selected="true"]::after {
    position: absolute;
    right: 0.35rem;
    bottom: -1px;
    left: 0.35rem;
    height: 2px;
    border-radius: 999px 999px 0 0;
    background: var(--deep-research-accent);
    content: "";
}

.deep-research-tab-panel {
    padding: 1.25rem 1.4rem 2rem;
}

.deep-research-inline-empty {
    padding: 0.9rem;
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius, 8px);
    color: var(--text-color-secondary);
    text-align: center;
}

.deep-research-inline-empty[hidden] {
    display: none;
}

.deep-research-inline-empty p {
    margin: 0;
    font-size: 0.78rem;
    line-height: 1.45;
}

.deep-research-request-streams {
    display: grid;
    gap: 0.8rem;
}

.deep-research-request {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius, 8px) + 2px);
    background: var(--background-color-secondary);
}

.deep-research-request > summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 0.7rem;
    min-height: 2.75rem;
    padding: 0.55rem 0.7rem;
    background: var(--background);
    list-style: none;
    cursor: pointer;
}

.deep-research-request > summary::-webkit-details-marker {
    display: none;
}

.deep-research-request[open] > summary {
    border-bottom: 1px solid var(--border-color);
}

.deep-research-request-chevron {
    display: grid;
    place-items: center;
    width: 1rem;
    height: 1rem;
}

.deep-research-request-chevron svg {
    width: 1rem;
    height: 1rem;
    transition: transform 140ms ease;
}

.deep-research-request[open] .deep-research-request-chevron svg {
    transform: rotate(180deg);
}

.deep-research-request > summary > div {
    display: grid;
    grid-template-columns: 1.45rem minmax(0, 1fr);
    align-items: center;
    min-width: 0;
    gap: 0.5rem;
}

.deep-research-request-ordinal {
    position: relative;
    display: grid;
    place-items: center;
    width: 1.45rem;
    height: 1.45rem;
    border-radius: 50%;
    background: color-mix(in srgb, var(--deep-research-accent) 12%, transparent);
    color: var(--deep-research-accent);
    font-size: 0.67rem;
    font-weight: 750;
}

.deep-research-request.is-running .deep-research-request-ordinal {
    background: transparent;
}

.deep-research-request-ordinal > svg {
    display: block;
    width: 1.45rem;
    height: 1.45rem;
    color: inherit;
    opacity: 1;
}

.deep-research-request[data-status="completed"] .deep-research-request-ordinal {
    background: var(--deep-research-accent);
    color: var(--background);
}

.deep-research-request[data-status="failed"] .deep-research-request-ordinal {
    background: color-mix(in srgb, var(--error-color) 12%, transparent);
    color: var(--error-color);
}

.deep-research-request h3 {
    margin: 0;
    overflow: hidden;
    color: var(--text-color);
    font-size: 0.78rem;
    font-weight: 650;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.deep-research-request-status {
    flex: 0 0 auto;
    padding: 0.2rem 0.45rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--deep-research-accent) 10%, transparent);
    color: var(--deep-research-accent);
    font-size: 0.64rem;
    font-weight: 700;
    line-height: 1.35;
}

.deep-research-request-status[data-status="completed"] {
    background: color-mix(in srgb, var(--success-color, #2e9b63) 10%, transparent);
    color: var(--success-color, #2e9b63);
}

.deep-research-request-status[data-status="failed"] {
    background: color-mix(in srgb, var(--error-color) 10%, transparent);
    color: var(--error-color);
}

.deep-research-request[data-status="pending"] .deep-research-request-ordinal,
.deep-research-request-status[data-status="pending"] {
    background: var(--background-color-secondary);
    color: var(--text-color-secondary);
}

.deep-research-request-body {
    min-width: 0;
}

.deep-research-request-timeline {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.45rem 0.7rem 0.7rem;
}

/* Reuse the main-chat assistant stream component without introducing a
   second visual language inside the Research preview. */
.deep-research-request-timeline > .assistant-thinking,
.deep-research-request-timeline > .assistant-message {
    width: 100%;
    min-width: 0;
}

.deep-research-stream-content {
    padding: 0.25rem 0.5rem 0.45rem;
}

.deep-research-stream-content .assistant-message-content {
    min-width: 0;
    color: var(--text-color);
    font-size: 0.78rem;
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.deep-research-stream-content .assistant-message-content > :first-child {
    margin-top: 0;
}

.deep-research-stream-content .assistant-message-content > :last-child {
    margin-bottom: 0;
}

.deep-research-stream-activity {
    display: grid;
    grid-template-columns: 0.8rem minmax(0, 1fr);
    align-items: start;
    gap: 0.45rem;
    padding-block: 0.35rem;
}

.deep-research-stream-activity .deep-research-activity-marker {
    margin-top: 0.35rem;
}

.deep-research-stream-activity time {
    color: var(--text-color-tertiary, var(--text-color-secondary));
    font-size: 0.68rem;
}

.deep-research-panel-empty {
    display: grid;
    place-items: center;
    min-height: 13rem;
    padding: 2rem;
    color: var(--text-color-secondary);
    text-align: center;
}

.deep-research-panel-empty[hidden] {
    display: none;
}

.deep-research-panel-empty-icon {
    display: grid;
    place-items: center;
    width: 2.8rem;
    height: 2.8rem;
    margin-bottom: 0.5rem;
    border-radius: 50%;
    background: var(--background-color-secondary);
}

.deep-research-panel-empty-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.deep-research-panel-empty p {
    max-width: 19rem;
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.55;
}

.deep-research-activity-list,
.deep-research-sidebar-source-list,
.deep-research-sidebar-file-list {
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
}

.deep-research-activity-item {
    position: relative;
    display: grid;
    grid-template-columns: 1rem minmax(0, 1fr);
    gap: 0.75rem;
    padding-bottom: 1.1rem;
}

.deep-research-activity-item:not(:last-child)::before {
    position: absolute;
    top: 0.8rem;
    bottom: -0.1rem;
    left: 0.36rem;
    width: 1px;
    background: var(--border-color);
    content: "";
}

.deep-research-activity-marker {
    position: relative;
    z-index: 1;
    width: 0.75rem;
    height: 0.75rem;
    margin-top: 0.25rem;
    border: 2px solid var(--deep-research-accent);
    border-radius: 50%;
    background: var(--background);
}

.deep-research-activity-item p {
    margin: 0;
    color: var(--text-color);
    font-size: 0.82rem;
    line-height: 1.5;
}

.deep-research-activity-item time {
    display: block;
    margin-top: 0.12rem;
    color: var(--text-color-tertiary, var(--text-color-secondary));
    font-size: 0.68rem;
}

.deep-research-sidebar-report {
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.65;
}

.deep-research-sidebar-report:empty {
    display: none;
}

.deep-research-sidebar-report img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius, 8px);
}

.deep-research-sidebar-source-list {
    gap: 0.7rem;
}

.deep-research-sidebar-source-list li {
    display: grid;
    grid-template-columns: 1.65rem minmax(0, 1fr);
    gap: 0.65rem;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius, 8px);
    background: var(--background-color-secondary);
}

.deep-research-source-number {
    display: grid;
    place-items: center;
    width: 1.65rem;
    height: 1.65rem;
    border-radius: 50%;
    background: color-mix(in srgb, var(--deep-research-accent) 12%, transparent);
    color: var(--deep-research-accent);
    font-size: 0.7rem;
    font-weight: 700;
}

.deep-research-sidebar-source-list a {
    color: var(--text-color);
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
}

.deep-research-sidebar-source-list p {
    display: -webkit-box;
    margin: 0.3rem 0 0;
    overflow: hidden;
    color: var(--text-color-secondary);
    font-size: 0.74rem;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.deep-research-sidebar-file-list {
    gap: 0.5rem;
}

.deep-research-sidebar-file-list li {
    display: grid;
    grid-template-columns: 1.8rem minmax(0, 1fr) 2rem;
    align-items: center;
    gap: 0.6rem;
    min-height: 3.2rem;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius, 8px);
    background: var(--background-color-secondary);
}

.deep-research-file-icon {
    display: grid;
    place-items: center;
    color: var(--text-color-secondary);
}

.deep-research-file-icon svg,
.deep-research-file-download svg {
    width: 1.1rem;
    height: 1.1rem;
}

.deep-research-file-name {
    overflow: hidden;
    color: var(--text-color);
    font-size: 0.8rem;
    font-weight: 550;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.deep-research-file-download {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border-radius: 0.45rem;
    color: var(--text-color-secondary);
}

.deep-research-sidebar-footer {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: flex-end;
    gap: 0.65rem;
    min-height: 4.6rem;
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border-color);
    background: var(--background);
}

.deep-research-sidebar-cancel,
.deep-research-sidebar-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.45rem;
    padding: 0.55rem 0.85rem;
    border-radius: var(--border-radius, 8px);
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.deep-research-sidebar-cancel {
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--error-color);
}

.deep-research-sidebar-primary {
    gap: 0.4rem;
    border: 1px solid var(--deep-research-accent);
    background: var(--deep-research-accent);
    color: var(--background);
}

.deep-research-sidebar-primary svg {
    width: 1rem;
    height: 1rem;
}

.deep-research-sidebar [hidden] {
    display: none;
}

@media (hover: hover) and (pointer: fine) {
    .deep-research-open:hover,
    .deep-research-sidebar-source-list a:hover,
    .deep-research-file-name:hover {
        text-decoration: underline;
        text-underline-offset: 0.15em;
    }

    .deep-research-sidebar-close:hover,
    .deep-research-card-chevron:hover,
    .deep-research-tabs button:hover,
    .deep-research-file-download:hover,
    .deep-research-request > summary:hover,
    .deep-research-query-disclosure summary:hover {
        background: var(--background-color-secondary);
        color: var(--text-color);
    }

    .deep-research-sidebar-cancel:hover {
        background: color-mix(in srgb, var(--error-color) 8%, transparent);
    }

    .deep-research-sidebar-primary:hover {
        filter: brightness(1.04);
    }
}

@media (max-width: 900px) {
    .deep-research-sidebar {
        inset: auto 0 0;
        width: 100%;
        min-width: unset;
        height: 85vh;
        border-left: 0;
        border-top: 1px solid var(--border-color);
        border-radius: 16px 16px 0 0;
        transform: translateY(100%);
        z-index: 200;
    }

    .deep-research-sidebar.is-open {
        transform: translateY(0);
    }

    body.deep-research-preview-open .main-container {
        margin-right: 0;
    }

    .deep-research-preview-resizer {
        display: none;
    }

    .deep-research-sidebar-header {
        padding-top: max(0.9rem, env(safe-area-inset-top));
    }

    .deep-research-sidebar-footer {
        padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
    }

}

@media (max-width: 520px) {
    .deep-research-widget {
        grid-template-columns: 2.25rem minmax(0, 1fr) 2rem;
        gap: 0.7rem;
        padding: 0.85rem;
    }

    .deep-research-card-icon {
        width: 2.25rem;
        height: 2.25rem;
    }

    .deep-research-card-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.2rem;
    }

    .deep-research-status {
        max-width: 100%;
    }

    .deep-research-sidebar-summary,
    .deep-research-tab-panel {
        padding-inline: 1rem;
    }

    .deep-research-tabs {
        padding-inline: 1rem;
    }
}

[data-reduce-animations="true"] .deep-research-progress-bar,
[data-reduce-animations="true"] .deep-research-query-chevron svg,
[data-reduce-animations="true"] .deep-research-request-chevron svg,
[data-reduce-animations="true"] .deep-research-card-chevron svg,
[data-reduce-animations="true"] .deep-research-request-timeline .assistant-thinking,
[data-reduce-animations="true"] .deep-research-request-timeline .assistant-thinking-content,
[data-reduce-animations="true"] .deep-research-sidebar {
    transition: none;
}

[data-reduce-animations="true"] .deep-research-request-timeline .assistant-thinking-shimmer {
    animation: none;
}

@media (prefers-reduced-motion: reduce) {
    html:not([data-reduce-animations="false"]) .deep-research-progress-bar,
    html:not([data-reduce-animations="false"]) .deep-research-query-chevron svg,
    html:not([data-reduce-animations="false"]) .deep-research-request-chevron svg,
    html:not([data-reduce-animations="false"]) .deep-research-card-chevron svg,
    html:not([data-reduce-animations="false"]) .deep-research-request-timeline .assistant-thinking,
    html:not([data-reduce-animations="false"]) .deep-research-request-timeline .assistant-thinking-content,
    html:not([data-reduce-animations="false"]) .deep-research-sidebar {
        transition: none;
    }

    html:not([data-reduce-animations="false"]) .deep-research-request-timeline .assistant-thinking-shimmer {
        animation: none;
    }
}