.tab-split-layout,
.two-column-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
    gap: 24px;
    align-items: start;
    margin-top: 18px;
}

#tab-report .two-column-layout {
    grid-template-columns: minmax(0, 0.86fr) minmax(540px, 1.14fr);
}

.tab-split-layout__main,
.tab-split-layout__side,
.two-column-layout__main,
.two-column-layout__aside {
    min-width: 0;
}

#tab-evaluation,
#tab-chart-lab,
#tab-risk,
#tab-report,
#tab-history {
    min-width: 0;
}

#tab-chat,
#tab-history {
    grid-column: 1 / -1;
}

#tab-evaluation,
#tab-chart-lab,
#tab-risk,
#tab-report {
    grid-column: 1;
    align-self: start;
    min-height: 0;
    max-height: calc(100vh - 250px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    padding-right: 8px;
}

#tab-chart-lab {
    grid-column: 1 / -1;
    max-height: none;
    overflow: visible;
    padding-right: 0;
}

#tab-evaluation-aux,
#tab-chart-lab-aux,
#tab-risk-aux,
#tab-report-aux {
    grid-column: 2;
    min-height: 0;
    max-height: calc(100vh - 250px);
    overflow-y: auto;
    overflow-x: visible;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    padding-right: 4px;
}

#tab-chart-lab-aux {
    display: none !important;
}

#tab-report-aux.aux-panel {
    padding: 18px 16px;
}

.tab-split-layout__surface {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(229, 231, 235, 0.95);
    border-radius: 22px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.tab-split-layout__surface--main {
    min-height: 100%;
}

.tab-split-layout__surface--side {
    min-height: 100%;
}

.tab-split-layout__main,
.two-column-layout__main {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.tab-split-layout__side,
.two-column-layout__aside {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: 24px;
    align-self: start;
}

.tab-split-layout__main .report-section,
.tab-split-layout__side .report-section,
.two-column-layout__main .report-section,
.two-column-layout__aside .report-section {
    margin-top: 0;
}

.layout-rail-card {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(229, 231, 235, 0.95);
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.layout-rail-card--graph {
    position: relative;
}

.layout-rail-card--sources {
    gap: 16px;
}

.layout-rail-card--sources .evidence-overview {
    margin-top: 0;
}

.layout-rail-card--sources .evidence-chip-row {
    margin-top: 12px;
}

.layout-rail-card--sources .report-section {
    margin-top: 0;
}

.layout-rail-card__header {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.layout-rail-card__header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.layout-rail-card__header--tight {
    gap: 10px;
}

.layout-rail-card__title {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
    color: #1f2937;
}

.layout-rail-card__desc {
    margin: 0;
    font-size: 12px;
    line-height: 1.6;
    color: #6b7280;
}

.layout-rail-card__toggle {
    flex: 0 0 auto;
    min-height: 30px;
    padding: 0 10px;
    border: 1px solid rgba(31, 41, 55, 0.10);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    color: #334155;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.layout-rail-card__toggle:hover {
    background: rgba(255, 255, 255, 0.96);
}

.layout-rail-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.layout-rail-actions--stacked {
    flex-direction: column;
    align-items: stretch;
}

.layout-rail-actions input,
.layout-rail-actions button:not(.btn) {
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    background: #fff;
    color: #374151;
    font-size: 13px;
    padding: 8px 12px;
}

.layout-rail-actions button {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.layout-rail-actions button:not(.btn):hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(99, 102, 241, 0.12);
}

.layout-rail-actions--stacked .btn {
    width: 100%;
}

.layout-placeholder {
    min-height: 96px;
    border: 1px dashed rgba(196, 205, 220, 0.95);
    border-radius: 16px;
    background: rgba(248, 250, 252, 0.9);
    color: #6b7280;
    padding: 16px;
    line-height: 1.8;
}

.layout-chart-rail {
    width: 100%;
    min-height: 320px;
    overflow: visible;
}

.layout-chart-rail--graph {
    min-height: 440px;
}

.layout-chart-rail--tall {
    min-height: 360px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .sources-chain,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .sources-chain,
#tab-report-aux #reportSourcesContainer .sources-chain {
    margin-top: 0;
    padding: 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(226, 232, 240, 0.96);
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .sources-chain-summary,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .sources-chain-summary,
#tab-report-aux #reportSourcesContainer .sources-chain-summary {
    white-space: normal;
    line-height: 1.7;
    font-size: 15px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .sources-list,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .sources-list,
#tab-report-aux #reportSourcesContainer .sources-list {
    gap: 14px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry,
#tab-report-aux #reportSourcesContainer .source-entry {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 14px;
    padding: 14px;
    border-radius: 18px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-body,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-body,
#tab-report-aux #reportSourcesContainer .source-entry-body {
    display: grid;
    gap: 12px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-header,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-header,
#tab-report-aux #reportSourcesContainer .source-entry-header {
    margin-bottom: 0;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-intel-head,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-intel-head,
#tab-report-aux #reportSourcesContainer .source-entry-intel-head {
    gap: 8px;
    padding: 12px 13px;
    border-radius: 16px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-title,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-title,
#tab-report-aux #reportSourcesContainer .source-entry-title {
    white-space: normal;
    line-height: 1.55;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-meta,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-meta,
#tab-report-aux #reportSourcesContainer .source-entry-meta {
    gap: 6px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-meta-chip,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-meta-chip,
#tab-report-aux #reportSourcesContainer .source-entry-meta-chip {
    max-width: 100%;
    min-height: 26px;
    padding: 4px 9px;
    font-size: 11px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-desc,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-desc,
#tab-report-aux #reportSourcesContainer .source-entry-desc {
    line-height: 1.8;
    -webkit-line-clamp: 3;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-actions,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-actions,
#tab-report-aux #reportSourcesContainer .source-entry-actions {
    gap: 8px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-entry-link-btn,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-entry-link-btn,
#tab-report-aux #reportSourcesContainer .source-entry-link-btn {
    min-height: 32px;
    padding: 0 10px;
    font-size: 11px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence,
#tab-report-aux #reportSourcesContainer .source-evidence {
    border-radius: 16px;
    overflow: hidden;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence > summary,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence > summary,
#tab-report-aux #reportSourcesContainer .source-evidence > summary {
    padding: 12px 13px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-content,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-content,
#tab-report-aux #reportSourcesContainer .source-evidence-content {
    padding: 0 13px 13px;
    overflow: visible;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-summary__label,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-summary__label,
#tab-report-aux #reportSourcesContainer .source-evidence-summary__label {
    font-size: 14px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-summary__hint,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-summary__hint,
#tab-report-aux #reportSourcesContainer .source-evidence-summary__hint {
    font-size: 11px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-reading-card,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-reading-card,
#tab-report-aux #reportSourcesContainer .source-evidence-reading-card {
    padding: 13px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-text,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-text,
#tab-report-aux #reportSourcesContainer .source-evidence-text {
    line-height: 1.9;
    font-size: 13px;
    padding: 13px 14px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-metric-item,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-metric-item,
#tab-report-aux #reportSourcesContainer .source-evidence-metric-item {
    padding: 12px 13px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-metric-detail,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-metric-detail,
#tab-report-aux #reportSourcesContainer .source-evidence-metric-detail {
    font-size: 13px;
    line-height: 1.82;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-evidence-raw-card,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-evidence-raw-card,
#tab-report-aux #reportSourcesContainer .source-evidence-raw-card {
    margin: 0;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-context-pdf-preview,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-context-pdf-preview,
#tab-report-aux #reportSourcesContainer .source-context-pdf-preview {
    padding: 8px;
}

#tab-evaluation-aux .layout-rail-card--sources #evalSourcesContainer .source-context-pdf-status,
#tab-risk-aux .layout-rail-card--sources #riskSourcesContainer .source-context-pdf-status,
#tab-report-aux #reportSourcesContainer .source-context-pdf-status {
    min-height: 72px;
    font-size: 12px;
}

#tab-report-aux {
    padding-right: 0;
}

#tab-report-aux #reportSourcesContainer .sources-chain {
    padding: 12px;
}

#tab-report-aux #reportSourcesContainer .source-entry {
    padding: 12px;
}

#tab-report-aux #reportSourcesContainer .source-evidence-content {
    padding: 10px 10px 12px;
}

#tab-report-aux #reportSourcesContainer .source-evidence-table-wrap {
    overflow-x: auto;
    padding: 0 0 12px;
    scrollbar-gutter: stable both-edges;
}

#tab-report-aux #reportSourcesContainer .source-evidence-table {
    width: max-content;
    min-width: 100%;
    table-layout: auto;
    font-size: 12px;
}

#tab-report-aux #reportSourcesContainer .source-evidence-table th:not(:first-child),
#tab-report-aux #reportSourcesContainer .source-evidence-table td:not(:first-child) {
    white-space: normal;
    word-break: break-word;
}

#tab-report-aux #reportSourcesContainer .source-evidence-table th,
#tab-report-aux #reportSourcesContainer .source-evidence-table td {
    padding: 8px 10px;
}

#tab-report-aux #reportSourcesContainer .source-evidence-table th:first-child,
#tab-report-aux #reportSourcesContainer .source-evidence-table td:first-child {
    min-width: 156px;
    white-space: normal;
    word-break: break-word;
}

#tab-report-aux #reportSourcesContainer .source-evidence,
#tab-report-aux #reportSourcesContainer .source-evidence-table-card {
    overflow: visible;
}

#tab-report-aux #reportSourcesContainer .source-evidence-chart-card {
    padding: 10px 12px;
}

#tab-report-aux #reportSourcesContainer .source-evidence-chart-row {
    grid-template-columns: minmax(72px, 1.15fr) minmax(100px, 2.4fr) auto;
    gap: 8px;
}

#tab-report-aux #reportSourcesContainer .source-evidence-chart-label {
    white-space: normal;
}

.layout-node-detail {
    position: absolute;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 100;
    min-width: 250px;
    pointer-events: none;
    transition: all 0.2s;
}

.aux-panel {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(229, 231, 235, 0.95);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.1);
    padding: 28px;
    display: none;
    flex-direction: column;
    gap: 18px;
    z-index: 2;
    position: sticky;
    top: 24px;
    align-self: start;
    min-height: 0;
}

#tab-evaluation:not(.hidden) ~ #tab-evaluation-aux,
#tab-chart-lab:not(.hidden) ~ #tab-chart-lab-aux,
#tab-risk:not(.hidden) ~ #tab-risk-aux,
#tab-report:not(.hidden) ~ #tab-report-aux {
    display: flex;
}

.tab-main-panel {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.metrics-grid--rail {
    margin-top: 0;
}

#tab-evaluation .tab-split-layout,
#tab-risk .tab-split-layout,
#tab-report .tab-split-layout,
#tab-evaluation .two-column-layout,
#tab-risk .two-column-layout,
#tab-report .two-column-layout {
    margin-top: 22px;
}

#tab-evaluation .tab-main-panel,
#tab-chart-lab,
#tab-risk .tab-main-panel,
#tab-report .tab-main-panel,
#tab-evaluation-aux,
#tab-chart-lab-aux,
#tab-risk-aux,
#tab-report-aux {
    min-height: 0;
}

/* Desktop-first layout only. Keep the structure stable on the current workspace viewport. */