.case-overview { background: var(--soft); padding-block: 48px; }
.case-back { margin-bottom: 28px; color: var(--green); font-size: 14px; }
.case-overview h1 { font-size: 48px; max-width: 920px; }
.case-subtitle { font: 500 23px/1.4 var(--display); margin-top: 18px; }
.case-status { display: inline-block; margin-top: 20px; color: var(--green); border-left: 2px solid var(--green); padding-left: 12px; }
.case-summary { max-width: 800px; margin-top: 22px; color: var(--muted); }
.case-layout { display: grid; grid-template-columns: 200px minmax(0,1fr); gap: 56px; align-items: start; padding-block: 48px; }
.case-section-nav { position: sticky; top: 104px; display: grid; gap: 2px; border-left: 1px solid var(--line); }
.case-section-nav a { padding: 8px 14px; font-size: 14px; text-decoration: none; }
.case-section-nav a:hover, .case-section-nav a[aria-current] { color: var(--green); background: var(--soft); }
.case-content { min-width: 0; }
.case-section { border-bottom: 1px solid var(--line); padding: 0 0 36px; margin-bottom: 36px; scroll-margin-top: 110px; }
.case-section h2 { font-size: 30px; margin-bottom: 24px; }
.evidence { margin-top: 26px; min-width: 0; }
.evidence:first-child { margin-top: 0; }
.evidence h3 { font-size: 22px; margin-bottom: 14px; }
.evidence h4 { font: 500 20px/1.3 var(--display); margin: 0 0 14px; }
.evidence p { color: var(--muted); }
.evidence-description { font-size: 15px; margin-bottom: 12px; }
.evidence .pending-label { margin: 0 0 14px; }
.evidence img, .evidence video { width: 100%; max-height: 560px; object-fit: contain; background: var(--soft); }
.evidence figcaption { margin-block: 12px; font-size: 13px; color: var(--muted); }
.evidence-placeholder { width: 100%; min-height: 180px; aspect-ratio: 16 / 7; border: 1px dashed #90a897; background-color: var(--soft); background-image: linear-gradient(#23634809 1px,transparent 1px),linear-gradient(90deg,#23634809 1px,transparent 1px); background-size: 24px 24px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 14px; padding: 24px; text-align: center; }
.evidence-placeholder .mono { color: var(--green); font-size: 12px; }
.evidence-placeholder > span:last-child { font-size: 13px; color: var(--muted); }
.evidence-flow { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; }
.evidence-flow li { border-top: 2px solid var(--green); padding: 18px 0 0; position: relative; }
.evidence-flow li:not(:last-child)::after { content: '\2192'; position: absolute; top: 18px; right: -20px; color: var(--green); }
.evidence-flow strong { font: 500 16px/1.4 var(--display); }
.evidence-flow p { font-size: 13px; margin-top: 8px; }
.evidence-feedback { display: flex; align-items: start; gap: 12px; padding: 16px 0 12px; margin-top: 24px; border-top: 1px solid var(--green); border-left: 1px solid var(--green); padding-left: 16px; color: var(--green); font-size: 13px; }
.validation-metrics { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 18px; margin: 28px 0; }
.validation-metrics > div { display: flex; flex-direction: column; border-top: 2px solid var(--green); padding-top: 18px; }
.validation-metrics dt { font: 11px/1.6 var(--mono); text-transform: uppercase; color: var(--muted); }
.validation-metrics dd { order: -1; margin: 0 0 10px; font: 500 42px/1.1 var(--display); color: var(--green); }
.metric-source, .metric-qualification { font-size: 13px; }
.evidence-process .evidence-flow { grid-template-columns: 1fr; gap: 16px; counter-reset: flow; }
.evidence-process .evidence-flow li { border-top: 1px solid var(--line); padding: 14px 0 14px 42px; counter-increment: flow; }
.evidence-process .evidence-flow li::before { content: '0' counter(flow); position: absolute; top: 17px; left: 0; font: 11px var(--mono); color: var(--green); }
.evidence-process .evidence-flow li:not(:last-child)::after { content: '\2193'; right: 12px; top: auto; bottom: -17px; }
.technical-details > summary { color: var(--green); }
.technical-body { padding-top: 22px; }
.code-artifact { border: 1px solid var(--line); border-radius: 4px; overflow: hidden; background: #f8faf8; margin: 18px 0; }
.code-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); padding: 8px 14px; }
.code-artifact pre { margin: 0; padding: 22px; max-width: 100%; overflow: auto; font: 13px/1.7 var(--mono); tab-size: 4; }
.code-artifact code { font: inherit; }
.copy-status { min-height: 24px; padding: 0 14px 6px; font-size: 12px; color: var(--green) !important; }
.evidence-facts { margin: 18px 0 0; }
.evidence-facts > div { display: grid; grid-template-columns: 170px minmax(0,1fr); gap: 20px; border-top: 1px solid var(--line); padding: 14px 0; }
.evidence-facts dt { font-weight: 500; font-size: 14px; }
.evidence-facts dd { margin: 0; color: var(--muted); font-size: 14px; overflow-wrap: anywhere; }
.comparison-controls { display: flex; gap: 6px; margin-bottom: 22px; }
.comparison-controls [aria-pressed="true"] { background: var(--green); color: white; border-color: var(--green); }
.case-comparison-panels { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px; }
.case-comparison-panels[data-view="standard"], .case-comparison-panels[data-view="engineered"] { grid-template-columns: 1fr; }
.case-comparison-panels[data-view="standard"] [data-case-side="engineered"], .case-comparison-panels[data-view="engineered"] [data-case-side="standard"] { display: none; }
.case-comparison-side { border-left: 2px solid #a9b5ae; padding-left: 20px; min-width: 0; }
.case-comparison-side[data-case-side="engineered"] { border-color: var(--green); }
.case-comparison-side .evidence h3 { font-size: 18px; }
.case-comparison-side p, .case-comparison-side li { font-size: 14px; }
.case-comparison-side .evidence-placeholder { min-height: 160px; }
.comparison-facts { margin-top: 28px; }
.comparison-dimensions { columns: 2; padding-left: 20px; color: var(--muted); }
.evidence-fallback { font-size: 13px; margin-top: 14px; }
.embed-actions, .artifact-actions { display: flex; align-items: center; flex-wrap: wrap; justify-content: space-between; gap: 20px; margin-block: 18px; }
.embed-status { font-size: 13px; }
.case-related { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; }
.evidence-image-dialog > button { float: right; margin-bottom: 16px; }
.evidence-image-dialog figure { clear: both; }
.evidence-image-dialog img { width: 100%; max-height: 75dvh; object-fit: contain; }
.evidence-image-dialog figcaption { font-size: 14px; margin-top: 12px; }
.lab-case-link { margin-block: 22px; color: var(--lime); }
@media (max-width: 900px) {
    .case-layout { grid-template-columns: 1fr; gap: 30px; }
    .case-section-nav { position: static; display: flex; flex-wrap: wrap; gap: 4px; border: 0; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
    .case-section-nav a { padding: 6px 10px; font-size: 13px; }
}
@media (max-width: 600px) {
    .validation-metrics { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
    .case-overview { padding-block: 32px; }
    .case-overview h1 { font-size: 32px; }
    .case-subtitle { font-size: 21px; }
    .case-layout { padding-block: 32px; }
    .case-section h2 { font-size: 27px; }
    .evidence h3 { font-size: 21px; }
    .evidence-flow, .case-comparison-panels { grid-template-columns: 1fr; }
    .evidence-flow li:not(:last-child)::after { content: '\2193'; top: auto; bottom: -22px; right: 12px; }
    .evidence-facts > div { grid-template-columns: 1fr; gap: 8px; }
    .code-artifact pre { padding: 16px; font-size: 13px; }
    .comparison-dimensions { columns: 1; }
    .evidence-placeholder .mono { font-size: 11px; }
}