/*
 * pages.css — site chrome + cross-cutting page-specific styles.
 *
 * Sections:
 *   - Site Footer
 *   - Floating Action Button
 *   - Responsive (shared media queries)
 *   - Insights Dashboard (admin/superuser)
 *   - Folder Identity Zone (folder hero, accent)
 *   - Collaborative Folders (legacy)
 *   - Folder invite preview (public, unauthenticated)
 *   - Insights — User Detail Page
 *   - Profile settings page
 *   - Instagram-style User Profile Page
 *   - Invite Picker (landing page)
 *   - Live Presence Strip ("studying now" on folder pages)
 *   - Materials tab (file-specific chrome on the shared finder tree)
 *   - Prompt Lab
 */

/* ==========================================================
   Site Footer
   ========================================================== */

.site-footer {
    position: fixed;
    bottom: 1rem;
    right: 1.25rem;
    z-index: 1;
}

@media (max-width: 600px) {
    .site-footer { right: 1rem; bottom: calc(var(--mobile-tab-height) + 0.5rem); }
}

/* Hide the floating About link on the messages page — the send button
   sits in the same bottom-right slot, so taps were landing on About. */
body:has(.dm-page) .site-footer { display: none; }

.site-footer a {
    font-size: 12px;
    color: var(--text-muted);
    opacity: 0.35;
    text-decoration: none;
    transition: opacity var(--transition);
}

.site-footer a:hover {
    opacity: 0.6;
}


/* ==========================================================
   Floating Action Button
   ========================================================== */

/* --- Mascot companion (placeholder for future Rive/Lottie integration) --- */
/* To add animated mascot: replace this section with Rive player styles */

/* (mascot CSS removed — will be re-added with Rive/Lottie integration) */


/* --- Shuffle FAB --- */
.study-actions-left {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: var(--z-fab);
    display: flex;
    gap: .5rem;
}

.study-action-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--surface);
    border: 1.5px solid var(--border);
    box-shadow: 0 2px 10px rgba(0,0,0,.06);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: transform .2s ease, box-shadow .2s ease, color .15s ease, border-color .15s ease;
}

.study-action-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(0,0,0,.1);
    color: var(--primary);
    border-color: var(--primary);
}

.study-action-btn:active { transform: scale(0.95); }

.fab-panel .drop-zone-sm {
    padding: 1rem .75rem;
}


/* Generic loading spinner */
.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spinnerSpin .8s linear infinite;
}

@keyframes spinnerSpin {
    to { transform: rotate(360deg); }
}


/* ==========================================================
   Responsive
   ========================================================== */

@media (max-width: 600px) {
    .calculator { max-width: 100%; }
    .input-area { margin: 1rem .5rem 0; }
    .kb-grid { gap: 3px; }
    .kb-key { height: 40px; font-size: .88rem; }

    .page-header { flex-direction: column; align-items: flex-start; }
    .deck-grid { grid-template-columns: 1fr; }

    .depth-step-dot { width: 14px; height: 14px; }
    .depth-step.goal .depth-step-dot { width: 17px; height: 17px; }
    .depth-q-preview { max-width: 140px; }
    .depth-crumb { max-width: 100px; font-size: .62rem; }
    .depth-crumb-ancestor { font-size: .62rem; padding: .1rem .25rem; }
    .depth-badge { font-size: .55rem; }

    .carousel-card { flex: 0 0 155px; padding: .75rem; }
    .carousel-card-name { font-size: .8rem; }

    /* Stats hero: stack on mobile */
    .study-stats-hero {
        grid-template-columns: 1fr;
        gap: .75rem;
        padding: .75rem 1rem;
    }
    .stats-hero-mastery {
        border-left: none;
        border-right: none;
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        padding: .75rem 0;
        align-self: stretch;
    }
    .stats-hero-top-student { max-width: none; min-width: 0; }
    .mastery-number { font-size: var(--fs-lg); }
    .mastery-names { max-width: none; white-space: normal; }
}


/* ==========================================================
   Insights Dashboard
   ========================================================== */

.insights-page {
    max-width: 1080px;
    margin: 0 auto;
    padding: 3rem 2rem 6rem;
}

.insights-header {
    margin-bottom: 4rem;
}

.insights-header-compact {
    margin-bottom: 2rem;
}

.insights-title {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--text);
    margin: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .5rem;
}

.insights-title-meta {
    font-size: .82rem;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0;
}

.insights-section {
    margin-bottom: 3.5rem;
}

.insights-section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.insights-section-title {
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--text);
    margin: 0;
}

.insights-section-meta {
    font-size: .78rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- Pulse hero metrics --- */

.insights-hero {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.insights-hero.hero-2 {
    grid-template-columns: repeat(2, 1fr);
}

.metric-card {
    background: var(--surface);
    padding: 1.75rem 1.5rem;
}

.metric-label {
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: .75rem;
}

.metric-value {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    letter-spacing: -.03em;
    font-variant-numeric: tabular-nums;
}

.metric-unit {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-left: .15rem;
}

.metric-delta {
    font-size: .78rem;
    font-weight: 500;
    margin-top: .85rem;
}

.metric-delta.positive { color: var(--green); }
.metric-delta.neutral { color: var(--text-muted); }

/* --- Per-user activity table --- */

.user-activity-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.user-activity-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .87rem;
}

.user-activity-table th,
.user-activity-table td {
    padding: .85rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.user-activity-table thead th {
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-muted);
    background: #FAFBFC;
}

.user-activity-table tbody tr:last-child td { border-bottom: none; }
.user-activity-table tbody tr:hover { background: #FAFBFC; }

.user-activity-table .col-num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.user-activity-table .col-name { width: 28%; }

.user-activity-table thead th[data-sort-key] {
    cursor: pointer;
    user-select: none;
    position: relative;
    transition: color .12s ease;
}
.user-activity-table thead th[data-sort-key]:hover { color: var(--text); }
.user-activity-table thead th[data-sort-key]::after {
    content: "";
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: .35em;
    vertical-align: middle;
    opacity: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
}
.user-activity-table thead th[aria-sort="ascending"]::after {
    opacity: .7;
    border-bottom: 5px solid currentColor;
}
.user-activity-table thead th[aria-sort="descending"]::after {
    opacity: .7;
    border-top: 5px solid currentColor;
}
.user-activity-table thead th[aria-sort] { color: var(--text); }
.user-activity-table thead th.col-num[data-sort-key]::after { float: right; margin-top: .55em; margin-left: 0; }

.user-name {
    font-weight: 600;
    color: var(--text);
}

.user-handle {
    display: inline-block;
    margin-left: .45rem;
    color: var(--text-muted);
    font-weight: 400;
    font-size: .85em;
}

.user-badge {
    display: inline-block;
    margin-left: .4rem;
    padding: .08rem .4rem;
    background: rgba(224, 100, 73, .1);
    color: var(--primary);
    font-size: .65rem;
    font-weight: 600;
    border-radius: 4px;
    letter-spacing: .03em;
    text-transform: uppercase;
    vertical-align: 1px;
}

.cell-muted { color: var(--text-muted); }

.status-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    margin-right: .55rem;
    vertical-align: 2px;
}

.status-dot.status-active { background: var(--green); box-shadow: 0 0 0 2px rgba(34, 197, 94, .15); }
.status-dot.status-recent { background: #f59e0b; }
.status-dot.status-dormant { background: #CBD5E1; }

.empty-row {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 1rem !important;
}

/* --- Daily activity heatmap --- */

.heatmap-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    overflow-x: auto;
}

.heatmap {
    display: grid;
    grid-template-rows: repeat(7, 11px);
    grid-auto-flow: column;
    grid-auto-columns: 11px;
    gap: 3px;
    width: max-content;
}

.heatmap-cell {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    background: #EDF0F4;
}

.heatmap-cell.empty { background: transparent; }
.heatmap-cell.intensity-0 { background: #EDF0F4; }
.heatmap-cell.intensity-1 { background: #E6ECFE; }
.heatmap-cell.intensity-2 { background: #6B84F0; }
.heatmap-cell.intensity-3 { background: #1E40E8; }
.heatmap-cell.intensity-4 { background: var(--primary); }

.heatmap-legend {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 1rem;
    justify-content: flex-end;
}

.legend-label {
    font-size: .7rem;
    color: var(--text-muted);
    margin: 0 .35rem;
}

/* --- Live total time counter --- */

.total-time-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
}

.total-time-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: .85rem;
}

.total-time-live {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .68rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-muted);
}

.live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, .55);
    animation: live-pulse 1.6s ease-out infinite;
}

@keyframes live-pulse {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, .55); }
    70% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.total-time-value {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -.03em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    display: flex;
    align-items: baseline;
    gap: .15rem;
    flex-wrap: wrap;
}

.tt-num {
    color: var(--text);
}

.tt-unit {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-right: .45rem;
    margin-left: .05rem;
}

/* --- Funnel --- */

.funnel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
}

.funnel-row {
    display: grid;
    grid-template-columns: 240px 1fr 110px;
    gap: 1.25rem;
    align-items: center;
    padding: .65rem 0;
}

.funnel-row + .funnel-row { border-top: 1px solid #F1F3F6; }

.funnel-label {
    font-size: .87rem;
    color: var(--text);
    font-weight: 500;
}

.funnel-bar-track {
    height: 8px;
    background: #F1F3F6;
    border-radius: 999px;
    overflow: hidden;
}

.funnel-bar {
    height: 100%;
    background: var(--primary);
    border-radius: 999px;
    transition: width .4s ease;
}

.funnel-count {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.funnel-pct {
    font-size: .95rem;
    font-weight: 600;
    color: var(--text);
}

.funnel-num {
    font-size: .78rem;
    color: var(--text-muted);
    margin-left: .4rem;
}

/* --- Insights flash messages --- */

.insights-flash { margin: .75rem 0 1.25rem; display: flex; flex-direction: column; gap: .5rem; }
.flash {
    font-size: .88rem;
    padding: .65rem .9rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #FAFBFC;
    color: var(--text);
}
.flash-success { background: #ECFDF5; border-color: #A7F3D0; color: #065F46; }
.flash-error { background: #FEF2F2; border-color: #FECACA; color: #991B1B; }

/* --- Funnel additions --- */

.funnel-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: .6rem;
    padding-top: .9rem;
    border-top: 1px dashed var(--border);
    font-size: .82rem;
    color: var(--text-muted);
}
.funnel-foot-value { font-variant-numeric: tabular-nums; color: var(--text); font-weight: 500; }

/* --- Danger zone --- */

.danger-zone .insights-section-title { color: var(--red); }
.danger-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.25rem 1.4rem;
    border: 1px solid #FECACA;
    background: #FEF7F7;
    border-radius: 12px;
}
.danger-text { flex: 1; min-width: 0; }
.danger-title { font-weight: 600; color: var(--text); margin-bottom: .2rem; }
.danger-desc { font-size: .85rem; color: var(--text-muted); line-height: 1.5; }
.danger-desc strong { color: var(--text); font-weight: 600; }

/* --- Delete-user modal --- */

.modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(15, 23, 42, .55);
    display: flex; align-items: center; justify-content: center;
    padding: 1rem;
    z-index: 1000;
}
.modal-backdrop[hidden] { display: none; }
.modal-card {
    background: #fff;
    border-radius: 14px;
    padding: 1.6rem 1.6rem 1.4rem;
    max-width: 460px;
    width: 100%;
    box-shadow: 0 25px 60px rgba(15, 23, 42, .25);
}
.modal-title {
    margin: 0 0 .6rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
}
.modal-body {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin: 0 0 1.1rem;
}
.modal-code {
    font-family: 'SF Mono', Menlo, monospace;
    font-size: .85rem;
    background: #F1F5F9;
    color: var(--text);
    padding: .08rem .4rem;
    border-radius: 4px;
}
.modal-form { display: flex; flex-direction: column; gap: 1rem; }
.modal-input {
    width: 100%;
    padding: .65rem .85rem;
    font-size: .92rem;
    font-family: inherit;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    transition: border-color var(--transition);
}
.modal-input:focus {
    outline: none;
    border-color: var(--red);
}
.modal-actions {
    display: flex; justify-content: flex-end; gap: .6rem;
}
.modal-actions .btn-danger:disabled {
    opacity: .4;
    cursor: not-allowed;
}
.modal-actions .btn-danger:not(:disabled) {
    background: var(--red);
    color: #fff;
}
.modal-actions .btn-danger:not(:disabled):hover {
    background: #dc2626;
}

/* --- Responsive --- */

@media (max-width: 900px) {
    .insights-page { padding: 2rem 1rem 4rem; }
    .insights-hero { grid-template-columns: repeat(2, 1fr); }
    .funnel-row { grid-template-columns: 1fr; gap: .35rem; padding: .85rem 0; }
    .funnel-count { text-align: left; }
    .insights-title { font-size: 1.8rem; }
    .metric-value { font-size: 2rem; }
    .danger-card { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 540px) {
    .user-activity-table { font-size: .78rem; }
    .user-activity-table th,
    .user-activity-table td { padding: .65rem .55rem; }
}


/* ==========================================================
   Folder Identity Zone (page header for /folders/<id>/)
   ========================================================== */

.folder-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 1.25rem;
    transition: color var(--transition);
}
.folder-breadcrumb:hover { color: var(--text); }

.folder-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    letter-spacing: -.02em;
    line-height: 1.15;
}

.folder-subtitle {
    font-size: .9rem;
    color: var(--text-muted);
    margin: .35rem 0 0 0;
}

.folder-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.folder-actions-group {
    display: flex;
    align-items: center;
    gap: .5rem;
}
.folder-actions-group + .folder-actions-group {
    margin-left: 1.25rem;
}

.folder-action-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .85rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text);
    font-size: .82rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}
.folder-action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(224, 100, 73, .03);
}

.folder-action-btn-icon {
    padding: .45rem;
    width: 32px;
    height: 32px;
    justify-content: center;
    color: var(--text-muted);
}
.folder-action-btn-icon:hover {
    color: var(--primary);
}

.folder-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 1.5rem 0 2rem;
}

.folder-section-label {
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* --- Folder deck grid (wrapping card layout) --- */
.folder-deck-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 1rem;
}
.folder-deck-grid .carousel-card {
    flex: 0 0 175px;
}
.folder-deck-grid .carousel-card-add {
    min-height: 0;
}

/* --- Folder tabs (Decks / Resources) --- */
.folder-tabs {
    display: flex;
    gap: 0;
    margin-top: .75rem;
    border-bottom: 1.5px solid var(--border);
}
.folder-tab {
    padding: .5rem 1rem;
    font-size: .85rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1.5px;
    transition: color .15s;
}
.folder-tab:hover { color: var(--text); }
.folder-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.folder-tab-count {
    font-size: .7rem;
    font-weight: 700;
    background: var(--bg);
    color: var(--text-muted);
    padding: .1rem .4rem;
    border-radius: 10px;
    margin-left: .25rem;
}
.folder-tab-invite {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .3rem .7rem;
    font-size: .75rem;
    font-weight: 600;
    font-family: inherit;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: .35rem;
    transition: color .15s, border-color .15s;
}
.folder-tab-invite:hover { color: var(--primary); border-color: var(--primary); }

/* --- Shared resources list --- */
.resource-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-top: .75rem;
}
.resource-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .65rem 1rem;
    background: var(--surface);
}
.resource-icon { color: var(--text-muted); flex-shrink: 0; }
.resource-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .1rem; }
.resource-name {
    font-size: .85rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.resource-meta { font-size: .7rem; color: var(--text-muted); }
.resource-action-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 6px;
    transition: color .15s, background .15s;
    text-decoration: none;
}
.resource-action-btn:hover { color: var(--primary); background: rgba(30,64,232,.06); }
.resource-delete-btn:hover { color: var(--red, #ef4444); background: rgba(239,68,68,.06); }
.resource-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    margin-top: .75rem;
    padding: .5rem 1rem;
    font-size: .8rem;
    font-weight: 600;
    font-family: inherit;
    border: 1.5px dashed var(--border);
    border-radius: var(--radius);
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: border-color .15s, color .15s;
}
.resource-upload-btn:hover { border-color: var(--primary); color: var(--primary); }
.resource-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: .85rem;
}

/* --- Resource sections --- */
.resource-section { margin-bottom: .75rem; }
.resource-section-header {
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: .45rem .75rem;
    background: var(--bg);
    border-radius: 8px;
    margin-bottom: .2rem;
    position: relative;
}
.resource-section-name {
    font-size: .88rem;
    font-weight: 600;
    color: var(--text);
    flex: 1;
    margin: 0;
}
.resource-section-toggle,
.resource-section-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: none;
    border: none;
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
}
.resource-section-toggle:hover,
.resource-section-menu-btn:hover { background: var(--border); }
.resource-section-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,.08);
    z-index: 10;
    min-width: 140px;
    padding: .25rem 0;
}
.resource-section-menu button {
    display: block;
    width: 100%;
    text-align: left;
    padding: .4rem .75rem;
    background: none;
    border: none;
    font-size: .82rem;
    color: var(--text);
    cursor: pointer;
}
.resource-section-menu button:hover { background: var(--bg); }
.resource-section-menu button.danger { color: #ef4444; }
.resource-section-menu button.danger:hover { background: #fef2f2; }
.resource-section-body { padding-left: .25rem; }
.resource-section-empty {
    padding: .5rem .75rem;
    font-size: .78rem;
    color: var(--text-muted);
    font-style: italic;
}
.resource-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-top: .75rem;
}
.resource-add-section-btn {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .4rem .75rem;
    background: none;
    border: 1.5px dashed var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: .82rem;
    cursor: pointer;
    transition: border-color .15s, color .15s;
}
.resource-add-section-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* --- Unified content sections (folder detail) --- */
.content-section { margin-bottom: 1rem; }
.content-section-header {
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: .5rem .75rem;
    background: var(--bg);
    border-radius: 8px;
    margin-bottom: .35rem;
    position: relative;
}
.content-section-header-unsorted { background: none; border-bottom: 1px solid var(--border); border-radius: 0; }
.content-section-name {
    font-size: .88rem;
    font-weight: 600;
    color: var(--text);
    flex: 1;
    margin: 0;
}
.content-section-toggle,
.content-section-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: none;
    border: none;
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
}
.content-section-toggle:hover,
.content-section-menu-btn:hover { background: var(--border); }
.content-section-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,.08);
    z-index: 10;
    min-width: 140px;
    padding: .25rem 0;
}
.content-section-menu button {
    display: block;
    width: 100%;
    text-align: left;
    padding: .4rem .75rem;
    background: none;
    border: none;
    font-size: .82rem;
    color: var(--text);
    cursor: pointer;
}
.content-section-menu button:hover { background: var(--bg); }
.content-section-menu button.danger { color: #ef4444; }
.content-section-menu button.danger:hover { background: #fef2f2; }
.content-section-body { padding: 0; }

/* Deck rows */
.content-deck-row {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: .5rem;
    transition: border-color .15s;
}
.content-deck-row:hover { border-color: var(--primary-light, #E6ECFE); }

/* Drag handle (owner-only grip icon) */
.content-deck-drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    min-height: 36px;
    color: var(--text-muted);
    cursor: grab;
    flex-shrink: 0;
    opacity: .35;
    transition: opacity .15s, color .15s;
    touch-action: none;
}
.content-deck-row:hover .content-deck-drag-handle { opacity: .7; }
.content-deck-drag-handle:active { cursor: grabbing; color: var(--text); opacity: 1; }

/* Deck three-dot menu */
.content-deck-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity .15s, background .15s;
}
.content-deck-row:hover .content-deck-menu-btn { opacity: 1; }
.content-deck-menu-btn:hover { background: var(--border); }
.content-deck-menu {
    position: absolute;
    top: 100%;
    right: .5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,.08);
    z-index: 10;
    min-width: 120px;
    padding: .25rem 0;
}
.content-deck-menu button {
    display: block;
    width: 100%;
    text-align: left;
    padding: .4rem .75rem;
    background: none;
    border: none;
    font-size: .82rem;
    color: var(--text);
    cursor: pointer;
}
.content-deck-menu button:hover { background: var(--bg); }
.content-deck-menu button.danger { color: #ef4444; }
.content-deck-menu button.danger:hover { background: #fef2f2; }
/* Inline rename input */
.content-deck-rename-input {
    font-size: .92rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--primary);
    border-radius: 4px;
    padding: .1rem .35rem;
    width: 100%;
    outline: none;
}

/* Section header grab cursor for named sections */
.content-section[data-section-id] .content-section-header { cursor: grab; }
.content-section[data-section-id] .content-section-header:active { cursor: grabbing; }

.content-deck-main {
    position: relative;
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem 1rem;
}
.content-deck-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(30,64,232,.08);
    color: var(--primary);
    flex-shrink: 0;
}
.content-deck-info {
    flex: 1;
    min-width: 0;
}
.content-deck-name {
    display: block;
    font-size: .92rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.content-deck-meta {
    display: block;
    font-size: .75rem;
    color: var(--text-muted);
    margin-top: .15rem;
}
.content-deck-bar {
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    margin-top: .4rem;
    overflow: hidden;
}
.content-deck-fill {
    height: 100%;
    background: linear-gradient(90deg, #0E7C5A, #22A373);
    border-radius: 2px;
    transition: width .5s ease;
}
.content-deck-actions {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 0 1rem .75rem 3.25rem;
}
.content-deck-study-btn {
    padding: .5rem 1.4rem;
    font-size: .9rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--primary);
    background: rgba(30,64,232,.06);
    border: 1px solid rgba(30,64,232,.15);
    border-radius: 8px;
    text-decoration: none;
    white-space: nowrap;
    transition: background .15s, border-color .15s;
}
.content-deck-study-btn:hover {
    background: rgba(30,64,232,.12);
    border-color: var(--primary);
}

/* Source files (collapsible under deck) */
.content-source-files {
    padding: 0 1rem .5rem 3.25rem;
}
.content-source-toggle {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    background: none;
    border: none;
    font-size: .75rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: .15rem 0;
    font-family: inherit;
}
.content-source-toggle:hover { color: var(--primary); }
.content-source-arrow {
    transition: transform .15s;
}
.content-source-list {
    padding-top: .25rem;
}
.content-source-row {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .25rem 0;
    font-size: .78rem;
    color: var(--text-muted);
}
.content-source-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.content-source-download {
    display: flex;
    align-items: center;
    color: var(--text-muted);
    opacity: .6;
    transition: opacity .15s;
}
.content-source-download:hover { opacity: 1; color: var(--primary); }

/* Loose files (not tied to a deck) */
.content-loose-file {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .75rem;
    border-radius: 8px;
    margin-bottom: .25rem;
    transition: background .15s;
}
.content-loose-file:hover { background: var(--bg); }
.content-loose-icon {
    display: flex;
    align-items: center;
    color: var(--text-muted);
}
.content-loose-info { flex: 1; min-width: 0; }
.content-loose-name {
    display: block;
    font-size: .82rem;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.content-loose-meta {
    display: block;
    font-size: .72rem;
    color: var(--text-muted);
}
.content-loose-action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 4px;
    transition: color .15s, background .15s;
    text-decoration: none;
}
.content-loose-action:hover { color: var(--primary); background: rgba(30,64,232,.06); }
.content-loose-delete:hover { color: #ef4444; background: rgba(239,68,68,.06); }

/* Section action buttons */
.content-section-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem 0;
}
.content-upload-btn,
.content-upload-file-btn {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .35rem .7rem;
    background: none;
    border: 1.5px dashed var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: .78rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .15s, color .15s;
}
.content-upload-btn:hover,
.content-upload-file-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Bottom actions (new section) */
.content-bottom-actions {
    padding: .5rem 0;
}
.content-add-section-btn {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .4rem .75rem;
    background: none;
    border: 1.5px dashed var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: .82rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .15s, color .15s;
}
.content-add-section-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Empty state */
.content-empty { margin-top: .5rem; }

/* Drag-over highlight for drop targets */
.library-empty-card.drag-over,
.content-upload-btn.drag-over {
    border-color: var(--primary);
    background: rgba(224, 100, 73, .06);
    box-shadow: 0 0 0 3px rgba(224, 100, 73, .12);
}
.library-empty-card.drag-over .library-empty-icon {
    background: rgba(224, 100, 73, .1);
    color: var(--primary);
}

/* Upload loading state */
.content-upload-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    gap: .75rem;
}
.content-upload-loading-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}
.content-upload-loading-sub {
    font-size: .85rem;
    color: var(--text-muted);
    margin: 0;
}

/* Responsive for content view */
@media (max-width: 540px) {
    .content-deck-main { flex-wrap: wrap; gap: .5rem; }
    .content-section-actions { flex-wrap: wrap; }
}

/* --- Folder banner action buttons --- */
.folder-banner-actions {
    position: absolute;
    top: .6rem;
    right: .6rem;
    display: flex;
    gap: .25rem;
}
.folder-banner-actions .deck-info-explorer {
    position: static;
}

/* --- Members tab content --- */
.members-tab-list {
    display: flex;
    flex-direction: column;
}
.members-tab-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .65rem .5rem;
    text-decoration: none;
    color: inherit;
    border-radius: 10px;
    transition: background .12s ease;
}
.members-tab-row:hover {
    background: var(--bg);
}
.members-tab-avatar {
    position: relative;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--border-focus));
    color: #fff;
    font-weight: 700;
    font-size: .9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
}
.members-tab-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}
.members-tab-info {
    flex: 1;
    min-width: 0;
}
.members-tab-name {
    display: block;
    font-size: .88rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.2;
}
.members-tab-meta {
    display: block;
    font-size: .74rem;
    color: var(--text-muted);
    line-height: 1.3;
}
.members-tab-progress {
    width: 56px;
    flex-shrink: 0;
}
.members-tab-bar {
    height: 4px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
}
.members-tab-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green), #22A373);
    border-radius: 999px;
    transition: width .4s ease;
}

/* --- Sidebar section card --- */
.sidebar-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .75rem 0;
}
.sidebar-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem .6rem;
    border-bottom: 1px solid var(--border);
}
.sidebar-section-title {
    font-size: .82rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -.01em;
    margin: 0;
}
.sidebar-member-count {
    font-size: .72rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* --- Sidebar member rows --- */
.sidebar-member {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .55rem 1rem;
    text-decoration: none;
    color: inherit;
    transition: background .12s ease;
}
.sidebar-member:hover {
    background: var(--bg);
}
.sidebar-member-avatar {
    position: relative;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--border-focus));
    color: #fff;
    font-weight: 700;
    font-size: .85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
}
.sidebar-member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}
.sidebar-active-dot {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--green);
    border: 2px solid var(--surface);
}
.sidebar-member-info {
    flex: 1;
    min-width: 0;
}
.sidebar-member-name {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-member-meta {
    display: block;
    font-size: .72rem;
    color: var(--text-muted);
    line-height: 1.3;
}
.sidebar-member-progress {
    width: 48px;
    flex-shrink: 0;
}
.sidebar-member-bar {
    height: 4px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
}
.sidebar-member-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green), #22A373);
    border-radius: 999px;
    transition: width .4s ease;
}

/* --- Sidebar invite button --- */
.sidebar-invite-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    width: 100%;
    margin-top: .75rem;
    padding: .6rem;
    background: none;
    border: 1.5px dashed var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: .82rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all .15s;
}
.sidebar-invite-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(224, 100, 73, .04);
}

/* --- Folder + Study layout responsive --- */
@media (max-width: 1100px) {
    /* Toggle is only useful once the sidebar actually has content. JS on the
       load with at least one concept; until then the button stays hidden to
       avoid an orphan pill on brand-new folders. */
    .study-layout { padding: 0; height: 100vh; }
    .study-layout .study { padding: .5rem 1rem 0 3.5rem; }
}
@media (max-width: 720px) {
    .folder-layout { flex-direction: column; }
    .folder-main { max-width: 100%; }
    .folder-header-avatars { display: flex; }
    .folder-header {
        padding: 1rem 1.15rem;
        border-radius: 12px;
        margin-bottom: 1rem;
    }
}

/* --- Readiness panel --- */
.readiness-panel {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 14px;
    padding: 1.5rem 1.75rem;
    margin-bottom: 2rem;
}

.readiness-top {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1rem;
}

.readiness-score {
    display: flex;
    align-items: baseline;
    gap: .4rem;
    flex-shrink: 0;
}

.readiness-pct {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.readiness-label {
    font-size: .85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.readiness-bar {
    flex: 1;
    height: 8px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
}

.readiness-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--green));
    transition: width .6s cubic-bezier(.22, 1, .36, 1);
}

.readiness-stats {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem .85rem;
    margin-bottom: 1rem;
}

.readiness-stat {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .78rem;
    font-weight: 500;
    color: var(--text-muted);
}

.readiness-focus {
    margin-bottom: 1rem;
    padding-top: .75rem;
    border-top: 1px solid var(--border);
}

.readiness-focus-label {
    display: block;
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-muted);
    margin-bottom: .6rem;
}

.readiness-focus-item {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .35rem 0;
}

.readiness-focus-name {
    font-size: .82rem;
    font-weight: 600;
    color: var(--text);
    min-width: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.readiness-focus-count {
    font-size: .72rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.readiness-focus-bar {
    width: 60px;
    height: 5px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
    flex-shrink: 0;
}

.readiness-focus-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--primary);
    transition: width .4s ease;
}

.readiness-message {
    font-size: .85rem;
    color: var(--text-muted);
    margin: 0 0 1rem;
    font-weight: 500;
}

.readiness-cta {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .55rem 1.2rem;
    background: var(--primary);
    color: #fff;
    font-size: .88rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    transition: background .15s ease;
}

.readiness-cta:hover { background: var(--primary-hover); }

@media (max-width: 540px) {
    .folder-header { padding: .85rem 1rem; border-radius: 10px; }
    .folder-header-name { font-size: 1.25rem; }
    .folder-title { font-size: 1.6rem; }
    .folder-actions-group + .folder-actions-group {
        margin-left: 0;
        margin-top: .35rem;
    }
}

/* Hide the desktop FAB on folder_detail — the inline "Add a deck" tile covers it.
   Show it again only on phone-width screens where reaching the top of the list is harder. */
.cell-fab-btn-mobile { display: none; }
@media (max-width: 720px) {
    .cell-fab-btn-mobile { display: flex; }
}


/* ==========================================================
   Collaborative Folders — Members + Invite UI (legacy)
   ========================================================== */

.page-header-actions {
    display: flex;
    align-items: center;
    gap: .65rem;
}

.members-badge {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .4rem .7rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 999px;
    color: var(--text);
    font-size: .82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .15s ease;
}
.members-badge:hover {
    background: var(--bg-subtle, #f1f5f9);
    border-color: var(--primary);
    color: var(--primary);
}

.btn-sm {
    padding: .4rem .85rem;
    font-size: .82rem;
}

/* Invite modal */
.invite-link-row {
    display: flex;
    gap: .5rem;
    align-items: center;
}
.invite-link-input {
    flex: 1;
    padding: .55rem .75rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: .85rem;
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    background: var(--bg-subtle, #f8fafc);
    color: var(--text);
}
.invite-regen-btn {
    margin-top: .75rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: .8rem;
    cursor: pointer;
    text-decoration: underline;
    padding: 0;
}
.invite-regen-btn:hover { color: var(--primary); }

/* Members list */
.members-list {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    max-height: 360px;
    overflow-y: auto;
}
.member-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .65rem .75rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
}
.member-profile-link {
    display: flex;
    align-items: center;
    gap: .75rem;
    flex: 1;
    min-width: 0;
    text-decoration: none;
    color: inherit;
}
.member-profile-link:hover .member-name {
    color: var(--primary);
}
.member-avatar {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--border-focus));
    color: white;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.member-ig {
    display: inline-flex;
    align-items: center;
    font-size: .75rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    margin-top: .15rem;
}
.member-ig:hover { text-decoration: underline; }
.member-info {
    flex: 1;
    min-width: 0;
}
.member-name {
    font-weight: 600;
    font-size: .9rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: .4rem;
}
.member-role {
    font-size: .72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
    font-weight: 600;
    margin-top: .1rem;
}
.member-active-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.2);
}
.member-remove-btn {
    background: none;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    font-size: .75rem;
    font-weight: 600;
    padding: .35rem .7rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all .15s ease;
}
.member-remove-btn:hover {
    border-color: var(--red);
    color: var(--red);
}


/* ==========================================================
   Folder invite preview (public, unauthenticated)
   ========================================================== */

.preview-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.preview-card {
    width: 100%;
    max-width: 480px;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.preview-badge {
    display: inline-block;
    padding: .3rem .7rem;
    background: linear-gradient(135deg, rgba(224, 100, 73, 0.1), rgba(240, 160, 144, 0.1));
    color: var(--primary);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    border-radius: 999px;
    margin-bottom: .75rem;
}

.preview-title {
    margin: 0 0 .35rem 0;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text);
}

.preview-meta {
    margin: 0 0 1.5rem 0;
    color: var(--text-muted);
    font-size: .9rem;
}

.preview-members {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-subtle, #f8fafc);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.preview-members-stack {
    display: flex;
    flex-shrink: 0;
}

.preview-member-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    background: #F1F3F6;
    border: 2.5px solid var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: -10px;
    flex-shrink: 0;
}
.preview-member-avatar:first-child {
    margin-left: 0;
}
.preview-member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.preview-member-initial {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.preview-member-more {
    background: var(--bg, #f1f5f9);
    color: var(--text-muted);
    font-size: .72rem;
    font-weight: 700;
}

.preview-members-text {
    margin: 0;
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.4;
}
.preview-members-text strong {
    color: var(--text);
    font-weight: 600;
}

.preview-decks {
    display: flex;
    flex-direction: column;
    gap: .55rem;
    margin-bottom: 1.5rem;
    max-height: 320px;
    overflow-y: auto;
}

.preview-deck {
    display: flex;
    align-items: center;
    gap: .8rem;
    padding: .8rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-subtle, #f8fafc);
}

.preview-deck-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-deck-info {
    flex: 1;
    min-width: 0;
}

.preview-deck-name {
    font-weight: 600;
    font-size: .95rem;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-deck-meta {
    font-size: .78rem;
    color: var(--text-muted);
    margin-top: .1rem;
}

.preview-empty {
    color: var(--text-muted);
    font-size: .9rem;
    text-align: center;
    padding: 1.5rem 0;
}

.preview-cta {
    margin-top: 1.5rem;
}

.preview-login {
    margin: .85rem 0 0 0;
    text-align: center;
    color: var(--text-muted);
    font-size: .85rem;
}
.preview-login a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}
.preview-login a:hover { text-decoration: underline; }


/* ==========================================================
   Insights — User Detail Page
   ========================================================== */

.insights-back {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: color var(--transition);
}
.insights-back:hover { color: var(--text); }

.user-row {
    cursor: pointer;
    transition: background var(--transition);
}
.user-row:hover { background: #FAFBFC; }

.user-badge-lg {
    font-size: .68rem;
    margin-left: .55rem;
    padding: .2rem .55rem;
    vertical-align: 6px;
}

.insights-hero.hero-6 {
    grid-template-columns: repeat(6, 1fr);
}

/* --- Personal funnel --- */

.user-funnel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0;
    overflow: hidden;
}

.user-funnel-step {
    display: grid;
    grid-template-columns: 30px 1fr 90px;
    gap: 1rem;
    align-items: center;
    padding: .85rem 1.5rem;
}

.user-funnel-step + .user-funnel-step { border-top: 1px solid #F1F3F6; }

.funnel-step-icon {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-funnel-step.hit .funnel-step-icon {
    background: rgba(34, 197, 94, .12);
    color: var(--green);
}
.user-funnel-step.miss .funnel-step-icon {
    background: #F1F3F6;
    color: #CBD5E1;
}

.user-funnel-step.hit .funnel-step-label { color: var(--text); font-weight: 500; }
.user-funnel-step.miss .funnel-step-label { color: var(--text-muted); font-weight: 400; }

.funnel-step-label { font-size: .9rem; }
.funnel-step-when {
    font-size: .78rem;
    color: var(--text-muted);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* --- Timeline --- */

.timeline {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.75rem;
}

.timeline-session {
    display: grid;
    grid-template-columns: 90px 4px 1fr;
    gap: 1rem;
    align-items: stretch;
    padding: .9rem 0;
}
.timeline-session + .timeline-session { border-top: 1px solid #F1F3F6; }

.session-time {
    text-align: right;
}
.session-date {
    font-size: .82rem;
    font-weight: 600;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}
.session-clock {
    font-size: .72rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    margin-top: .15rem;
}

.session-bar {
    background: var(--primary);
    border-radius: 4px;
    width: 4px;
    align-self: stretch;
    min-height: 28px;
}

.session-body { padding-top: .1rem; }

.session-stats {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .35rem;
    font-size: .85rem;
}

.session-stat-num {
    font-weight: 600;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.session-stat-label {
    color: var(--text-muted);
    font-size: .8rem;
}

.session-divider {
    color: #CBD5E1;
    margin: 0 .15rem;
}

.session-tag {
    display: inline-block;
    margin-left: .65rem;
    padding: .12rem .55rem;
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-radius: 4px;
}
.wrong-tag {
    background: rgba(239, 68, 68, .1);
    color: var(--red);
}

.session-decks {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    margin-top: .4rem;
}
.session-deck {
    font-size: .72rem;
    color: var(--text-muted);
    background: #F4F5F7;
    padding: .12rem .55rem;
    border-radius: 4px;
}

/* Gap markers between sessions */
.timeline-gap {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .55rem 0;
    margin-left: 90px;
    padding-left: 1rem;
}

.timeline-gap-line {
    flex: 1;
    height: 1px;
    background: #E2E8F0;
}

.timeline-gap-label {
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: #94A3B8;
    background: var(--surface);
    padding: 0 .55rem;
}

.empty-timeline {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 1rem;
    font-size: .85rem;
}

/* --- Recent attempts table --- */

.recent-attempts .nowrap { white-space: nowrap; }
.recent-attempts .attempt-q {
    color: var(--text);
    max-width: 380px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.recent-attempts .attempt-a {
    color: var(--text);
    font-family: 'SF Mono', Monaco, 'Cascadia Mono', Menlo, monospace;
    font-size: .8rem;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.recent-attempts .attempt-a.wrong-a { color: var(--red); }

.result-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: .85rem;
    font-weight: 700;
}
.result-correct { background: rgba(34, 197, 94, .12); color: var(--green); }
.result-wrong { background: rgba(239, 68, 68, .12); color: var(--red); }

@media (max-width: 900px) {
    .insights-hero.hero-6 { grid-template-columns: repeat(2, 1fr); }
    .user-funnel-step { grid-template-columns: 30px 1fr 70px; padding: .75rem 1rem; gap: .65rem; }
    .timeline { padding: 1rem 1.25rem; }
    .timeline-session { grid-template-columns: 70px 4px 1fr; gap: .65rem; }
    .timeline-gap { margin-left: 70px; padding-left: .65rem; }
    .recent-attempts .attempt-q { max-width: 200px; }
    .recent-attempts .attempt-a { max-width: 100px; }
}



/* ==========================================================
   Profile settings page
   ========================================================== */

.profile-page {
    max-width: 480px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 4rem;
}

.profile-page-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.profile-card {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 18px;
    padding: 2.5rem 2rem 2rem;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.05);
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

/* --- Avatar (focal point) --- */

.profile-avatar-stage {
    position: relative;
    align-self: center;
    margin-bottom: 1.25rem;
}

.profile-avatar-circle {
    position: relative;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: none;
    padding: 0;
    cursor: pointer;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary), var(--border-focus));
    box-shadow: 0 6px 20px rgba(224, 100, 73, .18);
    transition: transform .25s ease, box-shadow .25s ease;
    display: block;
    font-family: inherit;
}

.profile-avatar-circle:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(224, 100, 73, .25);
}

.profile-avatar-content {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-avatar-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-avatar-initial {
    color: white;
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -.02em;
}

.profile-avatar-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    background: rgba(15, 23, 42, .55);
    color: white;
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: 0;
    transition: opacity .2s ease;
    pointer-events: none;
}

.profile-avatar-circle:hover .profile-avatar-overlay,
.profile-avatar-circle:focus-visible .profile-avatar-overlay {
    opacity: 1;
}

.profile-avatar-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid var(--surface);
    background: var(--text);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 2px 6px rgba(15, 23, 42, .2);
    transition: transform .15s ease, background .15s ease;
    z-index: 2;
}

.profile-avatar-remove:hover {
    transform: scale(1.08);
    background: var(--red);
}

/* --- Identity (username + stats) --- */

.profile-identity {
    text-align: center;
    margin-bottom: 1.75rem;
}

.profile-username {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    letter-spacing: -.01em;
}

.profile-handle {
    color: var(--text-muted);
    font-size: .9rem;
    margin: .15rem 0 .5rem 0;
}

.profile-stats {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .35rem .85rem;
    font-size: .78rem;
    color: var(--text-muted);
}

.profile-stat {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-weight: 500;
}

.profile-stat svg {
    color: var(--primary);
    opacity: .8;
}

/* --- Divider --- */

.profile-divider {
    height: 1px;
    background: var(--border);
    margin: 0 -.5rem 1.75rem;
}

/* --- Form fields --- */

.profile-field {
    margin-bottom: 1.5rem;
}

.profile-field-label {
    display: block;
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--text-muted);
    margin-bottom: .5rem;
}

.profile-field-hint {
    font-size: .75rem;
    color: var(--text-muted);
    margin: .5rem 0 0 0;
}

/* --- Instagram input (handle prefix) --- */

.instagram-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.instagram-input-prefix {
    position: absolute;
    left: 1rem;
    font-size: .95rem;
    color: var(--text-muted);
    pointer-events: none;
    font-weight: 500;
}
.instagram-input {
    padding-left: 1.85rem;
    width: 100%;
}

/* --- Save row --- */

.profile-save-row {
    margin-top: .25rem;
    position: relative;
}

.profile-save-row .btn-full {
    width: 100%;
}

.profile-save-row .rename-saved-pill {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: var(--surface);
    box-shadow: 0 2px 8px rgba(15, 23, 42, .12);
    border: 1px solid rgba(34, 197, 94, .25);
}

/* --- Crop modal (Cropper.js) --- */

.crop-modal-overlay {
    z-index: 9999;
}

.modal-crop {
    max-width: 480px;
    width: calc(100vw - 2rem);
    padding: 1.5rem 1.5rem 1.25rem;
}

.crop-title {
    margin: 0 0 .25rem 0;
    font-size: 1.15rem;
    font-weight: 700;
    text-align: center;
}

.crop-hint {
    margin: 0 0 1rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: .8rem;
}

.crop-stage {
    width: 100%;
    height: 360px;
    background: #0f172a;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: .85rem;
    position: relative;
}

.crop-stage img {
    /* Cropper.js requires the source image inside its container; visibility
       is managed by Cropper itself once initialized. */
    display: block;
    max-width: 100%;
}

/* Make Cropper's crop box circular (the underlying crop is still square,
   this is just visual). */
.crop-stage .cropper-view-box,
.crop-stage .cropper-face {
    border-radius: 50%;
}

.crop-stage .cropper-view-box {
    outline: 2px solid white;
    outline-color: rgba(255, 255, 255, .85);
    box-shadow: 0 0 0 9999px rgba(15, 23, 42, .55);
}

.crop-stage .cropper-line,
.crop-stage .cropper-point {
    display: none !important;
}

.crop-zoom-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    margin-bottom: 1rem;
}

.crop-zoom-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: var(--surface);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all .15s ease;
}

.crop-zoom-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: scale(1.05);
}

.crop-actions {
    display: flex;
    gap: .65rem;
    justify-content: flex-end;
}

.crop-actions .btn {
    min-width: 110px;
}

@media (max-width: 540px) {
    .crop-stage { height: 280px; }
    .crop-actions .btn { flex: 1; min-width: 0; }
}


/* ==========================================================
   Instagram-style User Profile Page
   ========================================================== */

.ig-profile-page {
    max-width: 940px;
    margin: 0 auto;
    padding: 2rem 2rem 5rem;
    position: relative;
}

.ig-profile-back {
    position: absolute;
    top: 1.25rem;
    left: 1.25rem;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-muted);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
    z-index: 5;
}
.ig-profile-back:hover {
    background: rgba(15, 23, 42, .05);
    color: var(--text);
}

.ig-profile-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}
.ig-profile-empty h1 {
    font-size: 1.5rem;
    margin-bottom: .5rem;
    color: var(--text);
}

/* --- Header --- */

.ig-profile-header {
    display: flex;
    align-items: center;
    gap: 4rem;
    padding: 1.5rem 0 2.5rem;
}

.ig-profile-avatar {
    width: 150px;
    height: 150px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    background: #F1F3F6;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ig-profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.ig-profile-avatar-initial {
    font-size: 4rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.ig-profile-meta {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: .85rem;
}

.ig-profile-username {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
    letter-spacing: -.01em;
    line-height: 1.1;
}

.ig-profile-stats {
    display: flex;
    gap: 2.5rem;
    margin: 0;
}

.ig-profile-actions {
    display: flex;
    gap: .5rem;
    margin-top: .35rem;
}

.ig-profile-edit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .55rem 1.25rem;
    background: #F1F3F6;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .85rem;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition);
    font-family: inherit;
}
.ig-profile-edit:hover {
    background: #E2E8F0;
}

.ig-stat {
    display: flex;
    gap: .35rem;
    font-size: 1rem;
    color: var(--text);
}
.ig-stat-num {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}
.ig-stat-label {
    color: var(--text);
}

.ig-stat-button {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    font: inherit;
    transition: opacity var(--transition);
}
.ig-stat-button:hover { opacity: .65; }
.ig-stat-button:disabled { cursor: default; opacity: 1; }

.ig-profile-bio {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    font-size: .95rem;
    color: var(--text);
}

.ig-profile-name {
    font-weight: 400;
    color: var(--text-muted);
    font-size: .9rem;
    min-height: 1.2em;
}

.ig-profile-streak {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    color: #f59e0b;
    font-weight: 500;
    width: fit-content;
}

.ig-profile-link {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    width: fit-content;
}
.ig-profile-link:hover {
    text-decoration: underline;
}

.ig-profile-divider {
    border-top: 1px solid var(--border);
    margin: 1rem 0 2rem;
}

.ig-section-label {
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: .85rem;
}

/* --- Subject grid --- */

.ig-subject-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.ig-subject-card {
    display: block;
    padding: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    transition: all var(--transition);
}
a.ig-subject-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, .04);
}
.ig-subject-card-locked {
    cursor: default;
    opacity: .85;
}

button.ig-subject-card-joinable {
    cursor: pointer;
    text-align: left;
    font-family: inherit;
}
button.ig-subject-card-joinable:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, .04);
}

.ig-subject-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius);
    background: rgba(13, 148, 136, .1);
    color: #0d9488;
    margin-bottom: .85rem;
}

.ig-subject-name {
    font-size: .95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: .35rem;
    line-height: 1.3;
}

.ig-subject-meta {
    font-size: .78rem;
    color: var(--text-muted);
    margin-bottom: .75rem;
}

.ig-subject-bar {
    height: 4px;
    background: #F1F3F6;
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: .35rem;
}
.ig-subject-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 999px;
}

.ig-subject-mastery {
    font-size: .72rem;
    color: var(--text-muted);
    font-weight: 500;
}

.ig-subject-empty {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
}
.ig-subject-empty p {
    margin-bottom: 1rem;
    font-size: .95rem;
}

/* --- Subjects modal (Instagram followers-style) --- */

.ig-subjects-modal-overlay {
    align-items: flex-start;
    padding-top: 8vh;
}

.ig-subjects-modal {
    width: 100%;
    max-width: 440px;
    padding: 0;
    overflow: hidden;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
}

.ig-subjects-modal-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    position: relative;
    flex-shrink: 0;
}

.ig-subjects-modal-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.ig-subjects-modal-close {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.6rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    padding: .25rem;
}
.ig-subjects-modal-close:hover { color: var(--text); }

.ig-subjects-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: .5rem 0;
}

.ig-subject-row {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .85rem 1.25rem;
    text-decoration: none;
    color: var(--text);
    transition: background var(--transition);
}
a.ig-subject-row:hover {
    background: #FAFBFC;
}
.ig-subject-row-locked {
    cursor: default;
    opacity: .75;
}

.ig-subject-row-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(13, 148, 136, .12);
    color: #0d9488;
    flex-shrink: 0;
}

.ig-subject-row-info {
    flex: 1;
    min-width: 0;
}

.ig-subject-row-name {
    font-size: .95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: .15rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ig-subject-row-meta {
    font-size: .78rem;
    color: var(--text-muted);
}

.ig-subject-row-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
}

.ig-subject-row-locked-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

/* --- User list rows (used by classmates modal) --- */

.ig-user-row {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .75rem 1.25rem;
    text-decoration: none;
    color: var(--text);
    transition: background var(--transition);
}
.ig-user-row:hover { background: #FAFBFC; }

.ig-user-row-avatar {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    background: #F1F3F6;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ig-user-row-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.ig-user-row-initial {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.ig-user-row-name {
    font-size: .95rem;
    font-weight: 600;
    color: var(--text);
}

.ig-user-row-you {
    font-weight: 400;
    color: var(--text-muted);
    font-size: .82rem;
}

/* --- Responsive --- */

@media (max-width: 720px) {
    .ig-profile-page { padding: 1.5rem 1rem 4rem; }
    .ig-profile-header {
        gap: 1.75rem;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .ig-profile-avatar { width: 110px; height: 110px; }
    .ig-profile-avatar-initial { font-size: 2.75rem; }
    .ig-profile-meta { align-items: center; }
    .ig-profile-stats { gap: 1.5rem; justify-content: center; }
    .ig-profile-bio { align-items: center; }
    .ig-profile-actions { width: 100%; justify-content: center; }
    .ig-profile-edit { width: 100%; max-width: 280px; }
    .ig-profile-streak,
    .ig-profile-link { margin: 0 auto; }
    .ig-subject-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 460px) {
    .ig-subject-grid { grid-template-columns: 1fr; }
    .ig-profile-stats { gap: 1.25rem; font-size: .9rem; }
}

/* --- Save to Deck --- */
.btn-save-to-deck {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    transition: all .15s;
    flex-shrink: 0;
}
.btn-save-to-deck:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(30,64,232,.06);
}

.save-deck-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: .6rem .75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    cursor: pointer;
    font-size: .88rem;
    color: var(--text);
    margin-bottom: .4rem;
    transition: all .15s;
}
.save-deck-option:hover {
    border-color: var(--primary);
    background: rgba(30,64,232,.04);
}
.save-deck-option svg {
    color: var(--primary);
    opacity: 0;
    transition: opacity .15s;
}
.save-deck-option:hover svg { opacity: 1; }

.save-deck-option-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-row-save {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    padding: .2rem .5rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    font-size: .75rem;
    transition: all .15s;
}
.card-row-save:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ==========================================================
   Invite Picker (landing page — "Invite a classmate" flow)
   ========================================================== */
.invite-picker-sub {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    line-height: var(--lh-base);
    margin-bottom: 1rem;
}
.invite-picker-list {
    display: flex;
    flex-direction: column;
    gap: .4rem;
    max-height: 280px;
    overflow-y: auto;
    margin-bottom: .75rem;
    padding-right: .15rem;
}
.invite-picker-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .75rem .9rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    transition: border-color .15s, background .15s, transform .15s;
}
.invite-picker-row:hover {
    border-color: var(--primary);
    background: rgba(79, 70, 229, .03);
    transform: translateY(-1px);
}
.invite-picker-row[disabled] {
    opacity: .6;
    cursor: wait;
    transform: none;
}
.invite-picker-row-name {
    font-size: var(--fs-md);
    font-weight: var(--fw-semibold);
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex: 1;
}
.invite-picker-row-action {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    flex-shrink: 0;
}
.invite-picker-row:hover .invite-picker-row-action { color: var(--primary); }
.invite-picker-row-arrow { transition: transform .15s; }
.invite-picker-row:hover .invite-picker-row-arrow { transform: translateX(2px); }

.invite-picker-create {
    display: flex;
    align-items: center;
    gap: .5rem;
    width: 100%;
    padding: .75rem .9rem;
    background: transparent;
    border: 1.5px dashed var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--text-muted);
    cursor: pointer;
    transition: border-color .15s, color .15s, background .15s;
}
.invite-picker-create:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(79, 70, 229, .03);
}
.invite-picker-create svg { flex-shrink: 0; }

/* Toast — small confirmation that the link was copied */
.invite-toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .65rem 1rem;
    background: var(--text);
    color: #fff;
    border-radius: 999px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    box-shadow: 0 8px 24px rgba(30, 41, 59, .2);
    opacity: 0;
    transition: opacity .2s ease, transform .2s ease;
    z-index: var(--z-modal);
    pointer-events: none;
}
.invite-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ==========================================================
   Live Presence Strip — "who's studying now" on folder pages
   ========================================================== */
.live-presence-strip {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .6rem .85rem;
    margin: 0 0 1rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    flex-wrap: wrap;
}
.live-presence-label {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.live-presence-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 0 rgba(30, 64, 232, .55);
    animation: live-presence-pulse 2s ease-out infinite;
}
@keyframes live-presence-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(30, 64, 232, .55); }
    70%  { box-shadow: 0 0 0 8px rgba(30, 64, 232, 0); }
    100% { box-shadow: 0 0 0 0 rgba(30, 64, 232, 0); }
}
.live-presence-list {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    flex: 1;
}
.live-presence-chip {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .3rem .7rem .3rem .35rem;
    border-radius: 999px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    transition: background .15s ease, border-color .15s ease;
}
.live-presence-chip:hover {
    background: var(--surface);
    border-color: var(--primary);
}
.live-presence-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary), var(--border-focus));
    color: #fff;
    font-size: .7rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.live-presence-avatar > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
img.live-presence-avatar {
    object-fit: cover;
}
.live-presence-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}
.live-presence-name {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
}
.live-presence-meta {
    font-size: var(--fs-xs);
    color: var(--text-muted);
}
.live-presence-join {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--primary);
    margin-left: .3rem;
}

/* ==========================================================
   Prompt Lab
   ========================================================== */

.prompt-lab {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    padding: 32px 32px 64px;
}

.prompt-lab-rail {
    position: sticky;
    top: 24px;
    align-self: start;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
}

.prompt-lab-rail-header h2 {
    margin: 0 0 4px;
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    color: var(--text);
}

/* Title row: "Prompt Lab" + the little "+" New subject button */
.prompt-lab-rail-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.prompt-lab-rail-title h2 {
    margin: 0;
}

.prompt-lab-add-subject {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.prompt-lab-add-subject:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.prompt-lab-rail-subtitle {
    margin: 8px 0 14px;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    line-height: var(--lh-base);
}

.prompt-lab-modes {
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}

.prompt-lab-mode-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-top: 18px;
    margin-top: 14px;
    border-top: 1px solid var(--border);
}

.prompt-lab-mode-group:first-child {
    padding-top: 0;
    margin-top: 0;
    border-top: none;
}

.prompt-lab-mode-group-title {
    margin: 0 0 10px;
    padding: 0 12px;
    font-family: var(--font-display);
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    letter-spacing: -0.01em;
    color: var(--text);
    text-transform: none;
}

.prompt-lab-mode {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-soft);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    transition: background var(--transition), color var(--transition);
}

.prompt-lab-mode:hover {
    background: var(--bg);
    color: var(--text);
}

.prompt-lab-mode.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: var(--fw-semibold);
}

.prompt-lab-mode-name { line-height: 1.3; }

.prompt-lab-mode-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--green);
    flex-shrink: 0;
}

.prompt-lab-main {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    min-width: 0;  /* lets pre/textarea shrink inside grid */
}

.prompt-lab-header {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.prompt-lab-header-text { min-width: 0; }

.prompt-lab-header h1 {
    margin: 0 0 6px;
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--text);
    line-height: var(--lh-tight);
}

.prompt-lab-description {
    margin: 0 0 10px;
    font-size: var(--fs-sm);
    color: var(--text-soft);
    line-height: var(--lh-base);
    max-width: 60ch;
}

.prompt-lab-status {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.prompt-lab-status-customized {
    color: var(--green);
}

.prompt-lab-header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.prompt-lab-save-status {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    font-feature-settings: "tnum";
}

.prompt-lab-save-status[data-kind="success"] { color: var(--green); }
.prompt-lab-save-status[data-kind="error"]   { color: var(--red); }
.prompt-lab-save-status[data-kind="pending"] { color: var(--text-muted); }

.prompt-lab-btn-primary,
.prompt-lab-btn-ghost {
    appearance: none;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 9px 16px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.prompt-lab-btn-primary {
    background: var(--primary);
    color: white;
}

.prompt-lab-btn-primary:hover { background: var(--primary-hover); }
.prompt-lab-btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.prompt-lab-btn-ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text-soft);
}

.prompt-lab-btn-ghost:hover {
    background: var(--bg);
    color: var(--text);
}

.prompt-lab-shortcut {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 11px;
    opacity: 0.7;
    font-weight: var(--fw-regular);
}

.prompt-lab-editor {
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-width: 0;
}

.prompt-lab-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.prompt-lab-label {
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}

.prompt-lab-hint {
    text-transform: none;
    letter-spacing: 0;
    font-weight: var(--fw-regular);
    color: var(--text-muted);
    font-size: var(--fs-xs);
}

.prompt-lab-hint code {
    background: var(--bg);
    padding: 1px 4px;
    border-radius: 4px;
    font-size: 11px;
}

.prompt-lab-input {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: var(--fs-sm);
    color: var(--text);
    background: var(--surface);
    transition: border-color var(--transition);
}

.prompt-lab-input:focus {
    outline: none;
    border-color: var(--primary);
}

.prompt-lab-textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text);
    background: var(--surface);
    resize: none;
    overflow: hidden;
    min-height: 360px;
    transition: border-color var(--transition);
}

.prompt-lab-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* User-message textareas — short strings, shouldn't claim 360px by default. */
.prompt-lab-textarea-user-msg {
    min-height: 110px;
}

/* Attachment chip — visually represents the file content block that rides
   alongside the text user message in `messages[0].content`. Dashed border
   signals "placeholder for what the upload will be at run time." */
.prompt-lab-attachment {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border: 1px dashed var(--border);
    border-radius: 8px;
    background: var(--bg);
    font-size: var(--fs-xs);
    color: var(--text-soft);
    width: fit-content;
    max-width: 100%;
}

.prompt-lab-attachment-icon {
    font-size: 14px;
    line-height: 1;
}

.prompt-lab-attachment-name {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    color: var(--text);
    font-weight: var(--fw-semibold);
}

.prompt-lab-attachment-meta {
    color: var(--text-muted);
}

.prompt-lab-attachment-meta code {
    background: var(--surface);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 11px;
}

.prompt-lab-user-msg-meta {
    margin: 6px 0 0;
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.prompt-lab-fixed-params {
    margin-top: 14px;
    padding: 10px 14px;
    border: 1px dashed var(--border);
    border-radius: 8px;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    background: var(--surface-muted, transparent);
}

.prompt-lab-fixed-params-label {
    font-weight: 600;
    margin-right: 8px;
    color: var(--text);
}

.prompt-lab-fixed-params code {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 12px;
}

.prompt-lab-status-global {
    color: #b15c00;
}

.prompt-lab-global-meta {
    display: block;
    margin-top: 6px;
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.prompt-lab-global-meta strong {
    color: var(--text-soft);
    font-weight: var(--fw-medium);
}

.prompt-lab-btn-publish {
    appearance: none;
    border: 1px solid var(--green);
    border-radius: 10px;
    padding: 9px 18px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    background: var(--green);
    color: #fff;
    transition: filter var(--transition), background var(--transition);
}

.prompt-lab-btn-publish:hover { filter: brightness(1.08); }
.prompt-lab-btn-publish:disabled { opacity: 0.6; cursor: not-allowed; }

.prompt-lab-history-empty {
    margin: 0;
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.prompt-lab-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.prompt-lab-modal[hidden] { display: none; }

.prompt-lab-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(2px);
}

.prompt-lab-modal-card {
    position: relative;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.3);
    padding: 24px 26px;
    max-width: 540px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.prompt-lab-modal-card h2 {
    margin: 0;
    font-size: var(--fs-lg);
    color: #6b3e00;
}

/* The New subject modal is informational, not a destructive warning —
   neutral heading instead of the publish modal's amber. */
#add-subject-modal .prompt-lab-modal-card h2 {
    color: var(--text);
}

.prompt-lab-modal-card p {
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--text-soft);
    line-height: 1.5;
}

.prompt-lab-modal-error {
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--red);
}

.prompt-lab-modal-error[hidden] { display: none; }

.prompt-lab-modal-hint {
    color: var(--text-muted) !important;
    font-size: var(--fs-xs) !important;
}

.prompt-lab-modal-label {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--text-soft);
    margin-top: 6px;
}

.prompt-lab-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 6px;
}

@media (max-width: 1024px) {
    .prompt-lab-textarea { min-height: 280px; }
}

@media (max-width: 720px) {
    .prompt-lab {
        grid-template-columns: 1fr;
        padding: 16px;
    }
    .prompt-lab-rail { position: static; }
}

/* ─── Test-mode two-pass workbench ─────────────────────────────────── */

.prompt-lab-main-test {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.prompt-lab-test-editor {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    background: var(--surface);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.prompt-lab-test-editor-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.prompt-lab-test-editor-title {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    min-width: 0;
}

.prompt-lab-test-editor-title h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    color: var(--text);
    line-height: 1.2;
}

.prompt-lab-test-editor-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.prompt-lab-test-editor-description {
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--text-soft);
    line-height: var(--lh-base);
    max-width: 70ch;
}

.prompt-lab-pass-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: var(--fw-bold);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: var(--primary-light);
    color: var(--primary);
    line-height: 1;
}

.prompt-lab-test-editor:nth-of-type(2n) .prompt-lab-pass-badge {
    background: rgba(14, 124, 90, 0.12);
    color: var(--green);
}

.prompt-lab-pass-arrow {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    color: var(--text-muted);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.prompt-lab-pass-arrow-line {
    flex: 1;
    height: 1px;
    background: var(--border);
}

.prompt-lab-pass-arrow-label {
    white-space: nowrap;
    flex-shrink: 0;
}

@media (max-width: 720px) {
    .prompt-lab-test-editor { padding: 16px; }
    .prompt-lab-pass-arrow { padding: 12px 16px; }
}


/* ─── Request preview (API-Lab-style) ─────────────────────────────── */

.prompt-lab-request-preview {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 4px;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-2, #f8f9fb);
}

.prompt-lab-request-preview-head h3 {
    margin: 0 0 4px 0;
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
    color: var(--text);
    letter-spacing: -0.005em;
}

.prompt-lab-request-preview-sub {
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--text-soft);
    line-height: var(--lh-base);
}

.prompt-lab-request-preview-sub code {
    font-size: 0.9em;
    background: rgba(0, 0, 0, 0.04);
    padding: 1px 5px;
    border-radius: 3px;
}

.prompt-lab-request-samples {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface, #fff);
}

.prompt-lab-request-samples-label {
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.prompt-lab-request-sample {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.prompt-lab-request-sample label code {
    font-size: 0.85em;
    background: rgba(30, 64, 232, 0.08);
    color: var(--primary);
    padding: 1px 6px;
    border-radius: 3px;
}

.prompt-lab-request-endpoint {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: var(--fs-sm);
}

.prompt-lab-request-method {
    background: var(--primary);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: var(--fw-bold);
    font-size: 11px;
    letter-spacing: 0.04em;
}

.prompt-lab-request-url {
    color: var(--text-soft);
    word-break: break-all;
}

.prompt-lab-request-body {
    margin: 0;
    padding: 14px 16px;
    background: #0f1419;
    color: #d4dbe5;
    border-radius: 8px;
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: 12.5px;
    line-height: 1.55;
    /* Wrap long string values instead of clipping them — admins read
       the system prompt without scrolling sideways. */
    white-space: pre-wrap;
    word-break: break-word;
    /* Fill the tab panel rather than shrinking to content height,
       so a short JSON doesn't leave empty whitespace below it and
       a long one still has plenty of room to scroll internally. */
    height: min(80vh, 900px);
    overflow-y: auto;
    overflow-x: hidden;
}

.prompt-lab-request-body .pl-k { color: #7dd3fc; }     /* keys */
.prompt-lab-request-body .pl-s { color: #a7f3d0; }     /* strings */
.prompt-lab-request-body .pl-n { color: #fbbf24; }     /* numbers */
.prompt-lab-request-body .pl-b { color: #c084fc; }     /* bool/null */
.prompt-lab-request-body .pl-p { color: #94a3b8; }     /* punctuation */

/* ── Fire panel: Send button + param strip + Request/Response tabs ─── */

.prompt-lab-btn-fire {
    background: var(--primary);
    color: #fff;
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: filter .12s ease;
}
.prompt-lab-btn-fire:hover { filter: brightness(1.08); }
.prompt-lab-btn-fire:disabled { opacity: .55; cursor: wait; }
.prompt-lab-btn-fire .prompt-lab-shortcut {
    color: rgba(255,255,255,.78);
    font-size: 11px;
    font-weight: 500;
}

.prompt-lab-attachment {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px dashed #cbd5e1;
    border-radius: 8px;
    background: #f8fafc;
    margin-bottom: 8px;
    position: relative;
}
.prompt-lab-file-input { position: absolute; left: -9999px; opacity: 0; }
.prompt-lab-attachment-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    flex: 1;
    color: #475569;
    font-size: 13px;
}
.prompt-lab-attachment-icon { font-size: 16px; }
.prompt-lab-attachment-name { font-weight: 500; }
.prompt-lab-attachment-meta { color: #94a3b8; font-size: 12px; margin-left: auto; }
.prompt-lab-attachment-meta code {
    background: #fff;
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid #e2e8f0;
    font-size: 11px;
}
.prompt-lab-attachment-clear {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
}
.prompt-lab-attachment-clear:hover { background: #e2e8f0; color: #ef4444; }

.prompt-lab-param-strip {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 14px;
    background: #fafbff;
    border: 1px solid #e7ecff;
    border-radius: 8px;
    margin: 16px 0 14px 0;
}
.prompt-lab-param-strip-label {
    font-size: 11px;
    font-weight: 600;
    color: #64748b;
    letter-spacing: .04em;
    text-transform: uppercase;
    margin-right: 4px;
}
.prompt-lab-param-field {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.prompt-lab-param-field label {
    font-size: 11px;
    color: #64748b;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}
.prompt-lab-input-compact {
    padding: 6px 10px;
    font-size: 13px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    width: 200px;
    min-width: 60px;
}
.prompt-lab-param-field:nth-child(2) .prompt-lab-input-compact { width: 110px; }
.prompt-lab-param-field:nth-child(3) .prompt-lab-input-compact { width: 110px; }
.prompt-lab-param-field:nth-child(4) .prompt-lab-input-compact { width: 90px; }
.prompt-lab-param-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #475569;
    cursor: pointer;
    padding-bottom: 6px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}
.prompt-lab-param-toggle input { cursor: pointer; }

.prompt-lab-rr-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid #e2e8f0;
    margin: 0 0 12px 0;
}
.prompt-lab-rr-tab {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 500;
    color: #64748b;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: -1px;
}
.prompt-lab-rr-tab:hover { color: #334155; }
.prompt-lab-rr-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.prompt-lab-rr-tab-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 6px;
    border-radius: 9px;
    font-size: 11px;
    font-weight: 600;
    background: #e2e8f0;
    color: #475569;
}
.prompt-lab-rr-tab-pill[data-state="pending"] { background: #fef3c7; color: #92400e; }
.prompt-lab-rr-tab-pill[data-state="ok"]      { background: #dcfce7; color: #14532d; }
.prompt-lab-rr-tab-pill[data-state="err"]     { background: #fee2e2; color: #991b1b; }

.prompt-lab-rr-panel {
    margin-top: 4px;
    /* Keep both tabs occupying roughly the same vertical space so
       switching between them doesn't jump the page. Slightly bigger
       than the Request body max so the request panel never overflows
       its container. */
    min-height: min(80vh, 900px);
}

.prompt-lab-response-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    margin-bottom: 14px;
    font-size: 13px;
    color: #475569;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}
.prompt-lab-response-status[data-state="pending"] { background: #fffbeb; border-color: #fde68a; color: #78350f; }
.prompt-lab-response-status[data-state="ok"]      { background: #f0fdf4; border-color: #bbf7d0; color: #14532d; }
.prompt-lab-response-status[data-state="err"]     { background: #fef2f2; border-color: #fecaca; color: #991b1b; }

.prompt-lab-response-section {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin-bottom: 10px;
    background: #fff;
}
.prompt-lab-response-section > summary {
    cursor: pointer;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
}
.prompt-lab-response-section > summary::-webkit-details-marker { display: none; }
.prompt-lab-response-section > summary::before {
    content: "▸";
    color: #94a3b8;
    font-size: 11px;
    transition: transform .12s ease;
    display: inline-block;
}
.prompt-lab-response-section[open] > summary::before { transform: rotate(90deg); }
.prompt-lab-response-section-count { color: #94a3b8; font-weight: 500; font-size: 12px; }

.prompt-lab-response-pre {
    margin: 0;
    padding: 12px 14px;
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 0 0 8px 8px;
    border-top: 1px solid #e2e8f0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    font-size: 12.5px;
    line-height: 1.55;
    overflow-x: auto;
    white-space: pre-wrap;
    max-height: 420px;
    overflow-y: auto;
}
.prompt-lab-response-pre-small { max-height: 220px; font-size: 12px; white-space: pre; }
.prompt-lab-response-pre-events {
    max-height: 320px;
    white-space: pre;
    font-size: 12px;
    color: #cbd5e1;
}
.prompt-lab-response-pre .pl-k { color: #7dd3fc; }
.prompt-lab-response-pre .pl-s { color: #a7f3d0; }
.prompt-lab-response-pre .pl-n { color: #fbbf24; }
.prompt-lab-response-pre .pl-b { color: #c084fc; }
.prompt-lab-response-pre .pl-p { color: #94a3b8; }

.prompt-lab-usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px;
    padding: 12px 14px;
    border-top: 1px solid #e2e8f0;
}
.prompt-lab-usage-cell {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 10px;
    background: #f8fafc;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
}
.prompt-lab-usage-key {
    font-size: 11px;
    color: #64748b;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}
.prompt-lab-usage-val {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    font-variant-numeric: tabular-nums;
}


/* ─── Recursive Break it Down trace ───────────────────────────────── */

.prompt-lab-textarea-stack {
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
    font-size: 12px;
    line-height: 1.5;
    background: var(--surface, #fff);
}

.prompt-lab-substeps {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
    padding: 16px 18px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface, #fff);
}

.prompt-lab-substeps-header {
    margin: 0;
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    color: var(--text);
    letter-spacing: -0.005em;
}

.prompt-lab-substeps-hint {
    margin: 0 0 6px 0;
    font-size: var(--fs-xs);
    color: var(--text-soft);
    line-height: var(--lh-base);
}

.prompt-lab-substep-tile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface-2, #f8f9fb);
}

.prompt-lab-substep-num {
    flex: 0 0 24px;
    font-variant-numeric: tabular-nums;
    font-weight: var(--fw-semibold);
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

.prompt-lab-substep-body {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.prompt-lab-substep-q,
.prompt-lab-substep-a {
    font-size: var(--fs-sm);
    color: var(--text);
    line-height: 1.4;
    overflow-wrap: anywhere;
}

.prompt-lab-substep-a { color: var(--text-soft); }

.prompt-lab-substep-label {
    display: inline-block;
    width: 18px;
    font-weight: var(--fw-bold);
    color: var(--text-muted);
    font-size: 11px;
}

.prompt-lab-drill-btn {
    flex: 0 0 auto;
    padding: 6px 12px;
    border: 1px solid var(--primary);
    border-radius: 6px;
    background: rgba(30, 64, 232, 0.04);
    color: var(--primary);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    cursor: pointer;
    transition: background 120ms ease, transform 120ms ease;
    white-space: nowrap;
}

.prompt-lab-drill-btn:hover {
    background: rgba(30, 64, 232, 0.1);
}

.prompt-lab-drill-btn:active {
    transform: translateY(1px);
}

.prompt-lab-level-group {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 18px;
}

.prompt-lab-level-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 10px 10px 0 0;
    background: linear-gradient(180deg, rgba(30, 64, 232, 0.06), rgba(30, 64, 232, 0.02));
}

.prompt-lab-level-title {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    color: var(--text);
    letter-spacing: -0.005em;
}

.prompt-lab-level-label {
    flex: 0 0 auto;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-size: var(--fs-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0.02em;
}

.prompt-lab-level-breadcrumb {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--fs-xs);
    font-weight: var(--fw-regular);
    color: var(--text-muted);
    font-style: italic;
}

.prompt-lab-level-remove {
    flex: 0 0 auto;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: transparent;
    color: var(--text-muted);
    font-size: var(--fs-xs);
    cursor: pointer;
}

.prompt-lab-level-remove:hover {
    border-color: var(--red, #ef4444);
    color: var(--red, #ef4444);
}

.prompt-lab-level-card {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.prompt-lab-level-send {
    margin-left: auto;
    align-self: flex-start;
}


/* ─── Pipeline trace page ─────────────────────────────────────────── */

.trace-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 24px 64px;
    color: var(--text);
}

.trace-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.trace-header h1 {
    margin: 0;
    font-size: var(--fs-2xl);
    font-weight: var(--fw-semibold);
    line-height: 1.2;
}

.trace-mode-name {
    color: var(--primary);
}

.trace-sub {
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.trace-back {
    align-self: flex-start;
    font-size: var(--fs-sm);
    color: var(--text-soft);
    text-decoration: none;
    padding: 4px 0;
}

.trace-back:hover { color: var(--primary); }

.trace-stages {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.trace-stage {
    background: var(--surface, #fff);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 22px;
}

.trace-stage-head {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    grid-column-gap: 12px;
    align-items: baseline;
    margin-bottom: 14px;
}

.trace-stage-head h2 {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    color: var(--text);
}

.trace-stage-num {
    grid-column: 1;
    grid-row: 1 / span 2;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--fw-bold);
    font-size: var(--fs-sm);
}

.trace-stage-hint {
    grid-column: 2;
    grid-row: 2;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    line-height: 1.5;
}

.trace-collapsible summary {
    cursor: pointer;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-soft);
    padding: 6px 0;
    user-select: none;
}

.trace-meta {
    margin-left: 8px;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    font-weight: var(--fw-regular);
}

.trace-prompt,
.trace-block-raw pre,
.trace-block-result pre,
.trace-attempt pre {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 12.5px;
    line-height: 1.55;
    color: var(--text-soft);
    overflow: auto;
    max-height: 380px;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 6px 0 0;
}

.trace-textarea {
    width: 100%;
    min-height: 220px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text);
    resize: vertical;
}

.trace-textarea:focus {
    outline: 2px solid var(--primary);
    border-color: var(--primary);
}

.trace-textarea-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    min-height: 18px;
}

.trace-status {
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.trace-status[data-kind="success"] { color: var(--green); }
.trace-status[data-kind="error"]   { color: var(--red); }
.trace-status[data-kind="pending"] { color: var(--text-muted); }

.trace-link-btn {
    appearance: none;
    background: none;
    border: 0;
    color: var(--primary);
    cursor: pointer;
    font: inherit;
    font-size: var(--fs-xs);
    padding: 0;
}

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

.trace-empty {
    margin: 0;
    padding: 14px;
    background: var(--bg);
    border: 1px dashed var(--border);
    border-radius: 10px;
    font-size: var(--fs-sm);
    color: var(--text-muted);
    text-align: center;
}

.trace-blocks {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.trace-block {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    padding: 14px 16px;
}

.trace-block.is-accepted { border-left: 4px solid var(--green); }
.trace-block.is-rejected { border-left: 4px solid var(--red); }

.trace-block-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.trace-block-num {
    background: var(--text);
    color: #fff;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: var(--fw-bold);
}

.trace-block-verdict { font-size: var(--fs-sm); color: var(--text-soft); }
.trace-block-verdict code {
    background: rgba(30, 64, 232, 0.08);
    color: var(--primary);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 12.5px;
}

.trace-block-raw summary,
.trace-attempt summary {
    cursor: pointer;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    padding: 4px 0;
    font-weight: var(--fw-medium);
    user-select: none;
}

.trace-attempts {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.trace-attempt {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    background: #fff;
}

.trace-attempt.is-winner { border-color: var(--green); background: #ecfdf5; }
.trace-attempt.is-rejected { background: #fef2f2; }

.trace-attempt-head {
    display: flex;
    align-items: center;
    gap: 10px;
}

.trace-attempt-shape {
    background: rgba(30, 64, 232, 0.08);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.trace-attempt-status {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: var(--fw-bold);
    color: var(--text-muted);
}

.trace-attempt.is-winner .trace-attempt-status { color: var(--green); }
.trace-attempt.is-rejected .trace-attempt-status { color: var(--red); }

.trace-attempt-error {
    margin-top: 6px;
    color: var(--red);
    font-size: var(--fs-xs);
}

.trace-block-result {
    margin-top: 14px;
    padding: 12px;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.trace-block-result h4,
.trace-matcher h4 {
    margin: 0 0 8px;
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    font-weight: var(--fw-bold);
}

.trace-matcher {
    margin-top: 14px;
    padding: 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.trace-match-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.trace-match-label {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    flex-shrink: 0;
}

.trace-mathfield {
    flex: 1;
    min-height: 36px;
    padding: 4px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
}

.trace-match-stored {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.trace-match-stored code {
    background: var(--bg);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid var(--border);
    font-size: 12.5px;
}

.trace-verdict-table {
    width: 100%;
    border-collapse: collapse;
    margin: 8px 0 12px;
    font-size: 12.5px;
}

.trace-verdict-table th,
.trace-verdict-table td {
    padding: 6px 10px;
    border: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.trace-verdict-table th {
    background: #f8fafc;
    font-weight: var(--fw-semibold);
    color: var(--text-soft);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.trace-verdict-table code {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 12px;
    color: var(--text);
    word-break: break-all;
}

.trace-verdict-summary {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: var(--fs-sm);
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.trace-verdict-final {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--border);
}

.trace-good { color: var(--green); }
.trace-bad  { color: var(--red); }