/* ═══════════════════════════════════════════════════════════
   BCF Manager Panel Styles
   ═══════════════════════════════════════════════════════════ */

/* ── Action Bar ──────────────────────────────────────────── */

.bcf-action-bar {
    display: flex;
    gap: var(--s1);
    padding: var(--s2) 0;
    border-bottom: 1px solid var(--bd);
    flex-wrap: wrap;
}

.bcf-action-bar .btn-sm {
    display: inline-flex;
    align-items: center;
    gap: var(--s1);
    padding: var(--s1) var(--s2);
    background: var(--bg-raised);
    color: var(--tx-secondary);
    border: 1px solid var(--bd);
    border-radius: var(--r-md);
    font-family: inherit;
    font-size: var(--tx-xs);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--t-base), color var(--t-base);
    white-space: nowrap;
    min-width: 0;
}

.bcf-action-bar .btn-sm:hover {
    background: var(--bg-hover);
    color: var(--tx-primary);
}

.bcf-action-bar .btn-sm.btn-accent {
    background: var(--accent);
    color: var(--tx-inverse);
    border-color: var(--accent);
}

.bcf-action-bar .btn-sm.btn-accent:hover {
    background: var(--accent-h);
}

.bcf-action-bar .btn-sm:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.bcf-action-bar .btn-sm svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
}

/* ── Filter Bar ──────────────────────────────────────────── */

.bcf-filter-bar {
    display: flex;
    gap: var(--s1);
    padding: var(--s2) 0;
    flex-wrap: wrap;
}

.bcf-filter-bar select,
.bcf-filter-bar input {
    height: 28px;
    padding: 0 var(--s2);
    background: var(--bg-raised);
    color: var(--tx-primary);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
    outline: none;
    min-width: 0;
}

.bcf-filter-bar select {
    flex: 0 1 auto;
    max-width: 120px;
}

.bcf-filter-bar input[type="search"] {
    flex: 1 1 80px;
}

.bcf-filter-bar select:focus,
.bcf-filter-bar input:focus {
    border-color: var(--bd-focus);
}

.bcf-filter-reset-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--tx-muted);
    transition: color var(--t-base);
}

.bcf-filter-reset-btn:hover {
    color: var(--tx-primary);
}

/* ── Topic List ──────────────────────────────────────────── */

.bcf-topic-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--s2);
    padding: var(--s2) 0;
}

/* ── File Groups (Accordion) ─────────────────────────────── */

.bcf-file-group {
    margin-bottom: var(--s1);
}

.bcf-file-group-header {
    display: flex;
    align-items: center;
    gap: var(--s1);
    padding: 6px var(--s2);
    cursor: pointer;
    background: var(--bg-raised);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-size: var(--tx-xs);
    font-weight: 600;
    color: var(--tx-secondary);
    user-select: none;
    transition: background var(--t-base), color var(--t-base);
}

.bcf-file-group-header:hover {
    background: var(--bg-hover);
    color: var(--tx-primary);
}

.bcf-group-chevron {
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.bcf-file-group.expanded .bcf-group-chevron {
    transform: rotate(90deg);
}

.bcf-group-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bcf-group-count {
    flex-shrink: 0;
    font-weight: 400;
    color: var(--tx-muted);
    font-size: 10px;
}

.bcf-group-delete {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: none;
    border: none;
    border-radius: var(--r-sm);
    color: var(--tx-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--t-base), color var(--t-base);
}

.bcf-file-group-header:hover .bcf-group-delete {
    opacity: 1;
}

.bcf-group-delete:hover {
    color: #ef4444;
}

.bcf-file-group-body {
    display: none;
    flex-direction: column;
    gap: var(--s2);
    padding: var(--s2) 0 0;
}

.bcf-file-group.expanded .bcf-file-group-body {
    display: flex;
}

.bcf-group-empty {
    padding: var(--s2) var(--s3);
    font-size: var(--tx-xs);
    color: var(--tx-muted);
    text-align: center;
}

/* ── Topic Card ──────────────────────────────────────────── */

.bcf-topic-card {
    display: flex;
    flex-direction: column;
    gap: var(--s1);
    padding: var(--s2) var(--s3);
    background: var(--bg-raised);
    border: 1px solid var(--bd);
    border-radius: var(--r-md);
    cursor: pointer;
    transition: border-color var(--t-base), background var(--t-base);
}

.bcf-topic-card:hover {
    border-color: var(--bd-focus);
    background: var(--bg-hover);
}

.bcf-topic-card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--s2);
}

.bcf-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 5px;
}

.bcf-status-dot[data-status="Open"] { background: #ef4444; }
.bcf-status-dot[data-status="In Progress"] { background: #f59e0b; }
.bcf-status-dot[data-status="Closed"] { background: #22c55e; }

.bcf-topic-title {
    font-size: var(--tx-sm);
    font-weight: 600;
    color: var(--tx-primary);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    flex: 1;
}

.bcf-topic-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--s1);
    font-size: 10px;
    color: var(--tx-muted);
}

.bcf-tag {
    display: inline-flex;
    align-items: center;
    padding: 1px 6px;
    background: var(--bg-panel);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-size: 10px;
    color: var(--tx-secondary);
    white-space: nowrap;
}

.bcf-tag.tag-priority-Critical,
.bcf-tag.tag-priority-High { color: #ef4444; border-color: rgba(239, 68, 68, 0.3); }
.bcf-tag.tag-priority-Low { color: var(--tx-muted); }

.bcf-topic-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 10px;
    color: var(--tx-muted);
}

.bcf-topic-counts {
    display: flex;
    gap: var(--s2);
}

/* ── Topic Card Preview (full-width snapshot) ────────────── */

.bcf-topic-card-preview {
    margin: calc(-1 * var(--s2)) calc(-1 * var(--s3)) 0;
    border-radius: var(--r-md) var(--r-md) 0 0;
    overflow: hidden;
    line-height: 0;
}

.bcf-topic-card-preview img {
    width: 100%;
    height: 96px;
    object-fit: cover;
    display: block;
}

/* ── Status Bar ──────────────────────────────────────────── */

.bcf-status-bar {
    padding: var(--s2) 0;
    border-top: 1px solid var(--bd);
    font-size: var(--tx-xs);
    color: var(--tx-muted);
    display: flex;
    gap: var(--s2);
}

/* ── Export Section ──────────────────────────────────────── */

.bcf-export-section {
    margin-top: var(--s3);
    padding-top: var(--s3);
    padding-bottom: var(--s3);
    border-top: 1px solid var(--bd);
    display: flex;
    flex-direction: column;
    gap: var(--s2);
}

.bcf-export-header {
    font-size: var(--tx-xs);
    font-weight: 600;
    color: var(--tx-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.bcf-export-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s2);
}

.bcf-export-label {
    font-size: var(--tx-xs);
    color: var(--tx-muted);
}

.bcf-export-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s1);
    padding: var(--s1) var(--s2);
    background: var(--bg-raised);
    border: 1px solid var(--bd);
    border-radius: var(--r1);
    color: var(--tx-secondary);
    font-size: var(--tx-xs);
    font-family: inherit;
    cursor: pointer;
    transition: background var(--t-base), color var(--t-base);
}

.bcf-export-btn:hover {
    background: var(--bg-hover);
    color: var(--tx-primary);
}

.bcf-version-toggle {
    display: flex;
    gap: 0;
    border: 1px solid var(--bd);
    border-radius: var(--r1);
    overflow: hidden;
}

.bcf-version-btn {
    background: none;
    border: none;
    padding: 3px 10px;
    font-size: var(--tx-xs);
    font-family: inherit;
    color: var(--tx-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.bcf-version-btn + .bcf-version-btn {
    border-left: 1px solid var(--bd);
}

.bcf-version-btn.active {
    background: var(--accent);
    color: var(--bg);
    font-weight: 600;
}

/* ── Empty State ─────────────────────────────────────────── */

.bcf-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--s3);
    padding: var(--s6) var(--s3);
    text-align: center;
    color: var(--tx-muted);
    flex: 1;
}

.bcf-empty svg {
    width: 40px;
    height: 40px;
    opacity: 0.3;
}

.bcf-empty-text {
    font-size: var(--tx-sm);
    line-height: 1.5;
}

/* ── Detail View ─────────────────────────────────────────── */

.bcf-detail {
    display: flex;
    flex-direction: column;
    gap: var(--s3);
    padding: var(--s2) 0;
    overflow-y: auto;
    flex: 1;
}

.bcf-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bcf-back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--s1);
    background: none;
    border: none;
    color: var(--accent);
    font-family: inherit;
    font-size: var(--tx-xs);
    cursor: pointer;
    padding: 0;
}

.bcf-delete-btn {
    color: var(--tx-muted);
    transition: color var(--t-base);
}

.bcf-delete-btn:hover {
    color: #ef4444;
}

.bcf-detail-title {
    font-size: var(--tx-base);
    font-weight: 600;
    color: var(--tx-primary);
    line-height: 1.3;
}

.bcf-detail-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s2);
}

.bcf-detail-field {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bcf-detail-field.full-width {
    grid-column: 1 / -1;
}

.bcf-detail-field label {
    font-size: 10px;
    font-weight: 600;
    color: var(--tx-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bcf-detail-field .value {
    font-size: var(--tx-xs);
    color: var(--tx-primary);
}

.bcf-detail-field select {
    height: 28px;
    padding: 0 var(--s2);
    background: var(--bg-raised);
    color: var(--tx-primary);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
}

.bcf-detail-field textarea {
    min-height: 60px;
    padding: var(--s2);
    background: var(--bg-raised);
    color: var(--tx-primary);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
    resize: vertical;
}

/* ── Viewpoint Thumbnails ────────────────────────────────── */

.bcf-viewpoints-row {
    display: flex;
    gap: var(--s2);
    flex-wrap: wrap;
}

.bcf-vp-thumb {
    width: 72px;
    height: 54px;
    border-radius: var(--r-sm);
    border: 1px solid var(--bd);
    object-fit: cover;
    cursor: pointer;
    transition: border-color var(--t-base), box-shadow var(--t-base);
}

.bcf-vp-thumb:hover {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-dim);
}

.bcf-vp-wrap {
    position: relative;
    display: inline-block;
}

.bcf-vp-expand {
    position: absolute;
    top: 3px;
    right: 3px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    border: none;
    border-radius: var(--r-sm);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--t-base);
}

.bcf-vp-wrap:hover .bcf-vp-expand {
    opacity: 1;
}

.bcf-vp-expand:hover {
    background: rgba(0, 0, 0, 0.8);
}

/* ── Comments ────────────────────────────────────────────── */

.bcf-comments {
    display: flex;
    flex-direction: column;
    gap: var(--s2);
}

.bcf-comment {
    padding: var(--s2);
    background: var(--bg-panel);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
}

.bcf-comment-header {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--tx-muted);
    margin-bottom: var(--s1);
}

.bcf-comment-text {
    font-size: var(--tx-xs);
    color: var(--tx-primary);
    line-height: 1.5;
}

.bcf-comment-vp-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: var(--s1);
    font-size: 10px;
    color: var(--accent);
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
}

/* ── Comment Input ───────────────────────────────────────── */

.bcf-comment-input {
    display: flex;
    gap: var(--s1);
    padding-top: var(--s2);
    border-top: 1px solid var(--bd);
}

.bcf-comment-input input {
    flex: 1;
    height: 32px;
    padding: 0 var(--s2);
    background: var(--bg-raised);
    color: var(--tx-primary);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
}

.bcf-comment-input button {
    height: 32px;
    padding: 0 var(--s3);
    background: var(--accent);
    color: var(--tx-inverse);
    border: none;
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
    font-weight: 600;
    cursor: pointer;
}

/* ── Auth-gated button styling ────────────────────────────── */

.bcf-action-bar .btn-sm[data-needs-auth] {
    opacity: 0.5;
    cursor: pointer;
    position: relative;
}

.bcf-action-bar .btn-sm[data-needs-auth]:hover {
    opacity: 0.7;
}

.bcf-lock-icon {
    opacity: 0.6;
    margin-left: 2px;
}

/* ── Auth Tooltip ────────────────────────────────────────── */

.bcf-auth-tooltip {
    position: absolute;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: var(--s1);
    padding: var(--s2) var(--s3);
    background: var(--bg-panel);
    border: 1px solid var(--bd-focus);
    border-radius: var(--r-md);
    box-shadow: var(--sh-lg);
    font-size: var(--tx-xs);
    color: var(--tx-secondary);
    line-height: 1.4;
    animation: bcf-tooltip-in 0.15s ease-out;
}

.bcf-auth-tooltip-link {
    color: var(--accent);
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
}

.bcf-auth-tooltip-link:hover,
.bcf-auth-tooltip-login:hover {
    text-decoration: underline;
}

.bcf-auth-tooltip-login {
    color: var(--accent);
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
}

.bcf-auth-tooltip:hover {
    /* Keep visible while hovering over tooltip itself */
    display: flex;
}

@keyframes bcf-tooltip-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Create Form ─────────────────────────────────────────── */

.bcf-create-form {
    display: flex;
    flex-direction: column;
    gap: var(--s3);
    padding: var(--s2) 0;
    overflow-y: auto;
    flex: 1;
}

.bcf-create-form .field-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bcf-create-form .field-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--tx-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bcf-create-form .field-input {
    height: 32px;
    padding: 0 var(--s2);
    background: var(--bg-raised);
    color: var(--tx-primary);
    border: 1px solid var(--bd);
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
    outline: none;
}

.bcf-create-form textarea.field-input {
    height: auto;
    min-height: 60px;
    padding: var(--s2);
    resize: vertical;
}

.bcf-create-form .field-input:focus {
    border-color: var(--bd-focus);
}

.bcf-create-form .field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s2);
}

.bcf-section-label {
    font-size: var(--tx-xs);
    font-weight: 600;
    color: var(--tx-secondary);
    padding: var(--s1) 0;
    border-bottom: 1px solid var(--bd);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.bcf-add-vp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: var(--r1);
    border: 1px solid var(--bd);
    background: var(--bg-raised);
    color: var(--tx-secondary);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.bcf-add-vp-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ── File Drop Zone ──────────────────────────────────────── */

.bcf-drop-zone {
    border: 2px dashed var(--bd);
    border-radius: var(--r-md);
    padding: var(--s4);
    text-align: center;
    color: var(--tx-muted);
    font-size: var(--tx-xs);
    transition: border-color var(--t-base), background var(--t-base);
}

.bcf-drop-zone.drag-over {
    border-color: var(--accent);
    background: rgba(34, 211, 238, 0.04);
}

/* ── Hidden file input ───────────────────────────────────── */
.bcf-file-input { display: none; }

/* ── Link Button ─────────────────────────────────────────── */

.bcf-link-btn {
    background: none;
    border: none;
    color: var(--accent);
    font-family: inherit;
    font-size: var(--tx-xs);
    cursor: pointer;
    padding: 0;
}

.bcf-link-btn:hover {
    text-decoration: underline;
}

/* ── Create Submit Button ────────────────────────────────── */

.bcf-submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s2);
    padding: 0 var(--s4);
    height: 32px;
    background: var(--accent);
    color: var(--tx-inverse);
    border: none;
    border-radius: var(--r-md);
    font-family: inherit;
    font-size: var(--tx-xs);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--t-base), box-shadow var(--t-base);
}

.bcf-submit-btn:hover {
    background: var(--accent-h);
    box-shadow: var(--accent-glow);
}

/* ═══════════════════════════════════════════════════════════
   Annotation Overlay
   ═══════════════════════════════════════════════════════════ */

.annotation-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    z-index: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.annotation-modal {
    display: flex;
    flex-direction: column;
    max-width: 95vw;
    max-height: 95vh;
    background: var(--bg-panel);
    border: 1px solid var(--bd);
    border-radius: var(--r-xl);
    box-shadow: var(--sh-xl);
    overflow: hidden;
}

/* ── Toolbar ─────────────────────────────────────────────── */

.annotation-toolbar {
    display: flex;
    flex-direction: column;
    gap: var(--s1);
    padding: var(--s2) var(--s3);
    border-bottom: 1px solid var(--bd);
    background: var(--bg-raised);
}

.annotation-toolbar-row {
    display: flex;
    align-items: center;
    gap: var(--s1);
    flex-wrap: wrap;
}

.annotation-toolbar-actions {
    justify-content: flex-start;
}

.annotation-sep {
    width: 1px;
    height: 20px;
    background: var(--bd);
    margin: 0 var(--s1);
    flex-shrink: 0;
}

.annotation-spacer {
    flex: 1;
}

/* Tool buttons */
.annotation-tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    color: var(--tx-muted);
    border: 1px solid transparent;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all var(--t-base);
}

.annotation-tool-btn:hover {
    color: var(--tx-primary);
    background: var(--bg-hover);
}

.annotation-tool-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(34, 211, 238, 0.08);
}

/* Color buttons */
.annotation-color-btn {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color var(--t-base), transform var(--t-base);
}

.annotation-color-btn:hover {
    transform: scale(1.15);
}

.annotation-color-btn.active {
    border-color: var(--tx-primary);
    box-shadow: 0 0 0 2px var(--bg-panel);
}

/* Width buttons */
.annotation-width-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 28px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--r-sm);
    cursor: pointer;
    transition: all var(--t-base);
}

.annotation-width-btn:hover {
    background: var(--bg-hover);
}

.annotation-width-btn.active {
    border-color: var(--accent);
    background: rgba(34, 211, 238, 0.08);
}

/* Action buttons */
.annotation-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s1);
    height: 30px;
    padding: 0 var(--s2);
    background: transparent;
    color: var(--tx-muted);
    border: 1px solid transparent;
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: var(--tx-xs);
    cursor: pointer;
    transition: all var(--t-base);
}

.annotation-action-btn:hover {
    color: var(--tx-primary);
    background: var(--bg-hover);
}

.annotation-done-btn {
    background: var(--accent);
    color: var(--tx-inverse);
    border-color: var(--accent);
    font-weight: 600;
    padding: 0 var(--s4);
}

.annotation-done-btn:hover {
    background: var(--accent-h);
    color: var(--tx-inverse);
}

.annotation-cancel-btn {
    color: var(--tx-secondary);
}

/* ── Canvas Area ─────────────────────────────────────────── */

.annotation-canvas-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #0a0a0a;
    min-height: 300px;
}

.annotation-canvas-wrap canvas {
    max-width: 100%;
    max-height: calc(95vh - 100px);
    cursor: crosshair;
    touch-action: none;
}

/* ── Text Input (floating over canvas) ───────────────────── */

.annotation-text-input {
    position: fixed;
    z-index: 700;
    background: transparent;
    border: 1px dashed rgba(255, 255, 255, 0.4);
    padding: 2px 6px;
    font-family: Inter, system-ui, sans-serif;
    font-weight: bold;
    outline: none;
    min-width: 100px;
}

/* ═══════════════════════════════════════════════════════════
   Screenshot Viewer Overlay
   ═══════════════════════════════════════════════════════════ */

.screenshot-viewer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    z-index: 550;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: bcf-tooltip-in 0.15s ease-out;
}

.screenshot-viewer {
    display: flex;
    flex-direction: column;
    max-width: 90vw;
    max-height: 90vh;
    background: var(--bg-panel);
    border: 1px solid var(--bd);
    border-radius: var(--r-xl);
    box-shadow: var(--sh-xl);
    overflow: hidden;
}

.screenshot-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s3);
    padding: var(--s3) var(--s4);
    border-bottom: 1px solid var(--bd);
}

.screenshot-viewer-info {
    display: flex;
    align-items: center;
    gap: var(--s2);
    min-width: 0;
}

.screenshot-viewer-title {
    font-size: var(--tx-sm);
    font-weight: 600;
    color: var(--tx-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.screenshot-viewer-meta {
    font-size: var(--tx-xs);
    color: var(--tx-muted);
    white-space: nowrap;
}

.screenshot-viewer-actions {
    display: flex;
    gap: var(--s1);
    flex-shrink: 0;
}

.screenshot-viewer-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a0a0a;
    overflow: hidden;
}

.screenshot-viewer-image img {
    max-width: 100%;
    max-height: calc(90vh - 120px);
    object-fit: contain;
}

.screenshot-viewer-desc {
    padding: var(--s2) var(--s4);
    font-size: var(--tx-xs);
    color: var(--tx-secondary);
    line-height: 1.5;
    border-top: 1px solid var(--bd);
}

/* ── Drag-and-drop active state on panel ─────────────────── */
.bcf-drop-active {
    outline: 2px dashed var(--accent);
    outline-offset: -4px;
    background: rgba(34, 211, 238, 0.03);
}

/* ── Create form: inline screenshot preview ──────────────── */
.bcf-create-preview {
    position: relative;
    margin-top: var(--s2);
    border-radius: var(--r2);
    overflow: hidden;
    border: 1px solid var(--bd);
}

.bcf-create-preview-img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--r2);
}

.bcf-preview-btn-row {
    position: absolute;
    top: var(--s2);
    right: var(--s2);
    display: flex;
    gap: var(--s1);
    opacity: 0;
    transition: opacity 0.15s;
}

.bcf-create-preview:hover .bcf-preview-btn-row {
    opacity: 1;
}

.bcf-preview-action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--s1);
    padding: var(--s1) var(--s2);
    font-size: var(--tx-xs);
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--r1);
    cursor: pointer;
}

.bcf-preview-action-btn:hover {
    background: rgba(0, 0, 0, 0.85);
}

/* ── Create form: extra viewpoint thumbnails ─────────────── */
.bcf-create-extra-vps {
    display: flex;
    gap: var(--s2);
    flex-wrap: wrap;
    margin-top: var(--s2);
}

.bcf-create-extra-vps:empty {
    display: none;
}

.bcf-extra-vp-thumb {
    position: relative;
    width: 72px;
    height: 54px;
    border-radius: var(--r1);
    overflow: hidden;
    border: 1px solid var(--bd);
}

.bcf-extra-vp-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bcf-extra-vp-remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s;
}

.bcf-extra-vp-thumb:hover .bcf-extra-vp-remove {
    opacity: 1;
}

.bcf-preview-hint {
    padding: var(--s1) var(--s2);
    font-size: 10px;
    color: var(--tx-muted);
    text-align: center;
    background: var(--bg-raised);
}

/* ═══════════════════════════════════════════════════════════
   Export Group Selection Overlay
   ═══════════════════════════════════════════════════════════ */

.bcf-export-overlay-modal {
    display: flex;
    flex-direction: column;
    width: 340px;
    max-width: 90vw;
    max-height: 80vh;
    background: var(--bg-panel);
    border: 1px solid var(--bd);
    border-radius: var(--r-xl);
    box-shadow: var(--sh-xl);
    overflow: hidden;
    animation: bcf-tooltip-in 0.15s ease-out;
}

.bcf-export-overlay-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--s3) var(--s4);
    border-bottom: 1px solid var(--bd);
}

.bcf-export-overlay-title {
    font-size: var(--tx-sm);
    font-weight: 600;
    color: var(--tx-primary);
}

.bcf-export-overlay-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--s3) var(--s4);
    display: flex;
    flex-direction: column;
    gap: var(--s2);
}

.bcf-export-overlay-select-all {
    padding-bottom: var(--s2);
    border-bottom: 1px solid var(--bd);
    margin-bottom: var(--s1);
}

.bcf-export-overlay-select-all label,
.bcf-export-group-row {
    display: flex;
    align-items: center;
    gap: var(--s2);
    cursor: pointer;
    font-size: var(--tx-xs);
    color: var(--tx-primary);
}

.bcf-export-group-row {
    padding: var(--s1) 0;
}

.bcf-export-group-row:hover {
    color: var(--accent);
}

.bcf-export-group-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bcf-export-group-count {
    flex-shrink: 0;
    font-size: 10px;
    color: var(--tx-muted);
}

.bcf-export-overlay-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--s2);
    padding: var(--s3) var(--s4);
    border-top: 1px solid var(--bd);
}