:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #172033; background: #f5f7fa; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
button, input, select, textarea { font: inherit; }
.topbar { display: flex; justify-content: space-between; gap: 2rem; align-items: flex-start; padding: 1.5rem clamp(1rem, 4vw, 4rem); color: white; background: linear-gradient(135deg, #7f1018, #c8102e); }
.topbar h1 { margin: .3rem 0; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.topbar p { margin: 0; max-width: 55rem; }
.eyebrow { margin: 0; text-transform: uppercase; letter-spacing: .14em; font-size: .75rem; font-weight: 800; }
main { width: min(1280px, calc(100% - 2rem)); margin: 1.5rem auto 4rem; }
.hidden { display: none !important; }
.warning-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1rem; }
.notice { display: grid; gap: .35rem; border: 1px solid; border-radius: 1rem; padding: 1rem; background: white; box-shadow: 0 8px 24px rgb(24 32 51 / 6%); }
.notice span { font-size: .9rem; line-height: 1.45; }
.notice.danger { border-color: #fecaca; background: #fff1f2; color: #881337; }
.notice.amber { border-color: #fde68a; background: #fffbeb; color: #78350f; }
.notice.blue { border-color: #bfdbfe; background: #eff6ff; color: #1e3a8a; }
.card { background: white; border: 1px solid #dfe4eb; border-radius: 1rem; padding: 1.25rem; box-shadow: 0 10px 30px rgb(24 32 51 / 6%); margin-bottom: 1rem; }
.toolbar, .section-heading, .progress-header, .actions { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.toolbar { margin: 1.5rem 0 1rem; }
h2 { margin: 0 0 .35rem; }
.toolbar p, .card p { margin: 0; color: #627087; }
.button { border: 0; border-radius: .65rem; padding: .72rem 1rem; cursor: pointer; font-weight: 750; }
.button.primary { background: #c8102e; color: white; }
.button.primary:hover { background: #a30d25; }
.button.secondary { background: white; color: #6f1522; border: 1px solid #e3a4ad; }
.button:disabled { opacity: .55; cursor: not-allowed; }
.icon-button { border: 0; background: transparent; font-size: 1.6rem; cursor: pointer; color: #64748b; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 1rem; }
label { display: grid; gap: .4rem; font-size: .88rem; font-weight: 700; }
input, select, textarea { width: 100%; border: 1px solid #cbd5e1; border-radius: .6rem; padding: .68rem .75rem; background: white; color: #172033; }
input:focus, select:focus, textarea:focus, .drop-zone:focus { outline: 3px solid rgb(200 16 46 / 20%); border-color: #c8102e; }
.drop-zone { margin-top: 1rem; display: grid; justify-items: center; gap: .35rem; border: 2px dashed #aab4c3; border-radius: 1rem; padding: 2rem; color: #5b6679; cursor: pointer; text-align: center; }
.drop-zone.dragging { border-color: #c8102e; background: #fff1f2; }
.drop-zone input { position: absolute; inline-size: 1px; block-size: 1px; opacity: 0; overflow: hidden; }
.drop-zone strong { color: #b20e29; }
.drop-icon { font-size: 2rem; }
.file-summary { margin-top: .75rem; border: 1px solid #d9e0e8; border-radius: .75rem; padding: .8rem; background: #f8fafc; }
.acknowledgements { margin-top: 1rem; display: grid; gap: .7rem; border: 1px solid #fde68a; border-radius: .85rem; padding: 1rem; background: #fffbeb; }
.acknowledgements label { grid-template-columns: auto 1fr; align-items: start; font-weight: 550; color: #6b4312; }
.acknowledgements input { margin-top: .15rem; }
.progress-panel { margin-top: 1rem; }
progress { width: 100%; height: 1rem; accent-color: #c8102e; }
.actions { justify-content: flex-end; margin-top: 1rem; }
.status { margin: 1rem 0; border-radius: .7rem; padding: .8rem 1rem; background: #eff6ff; color: #1e3a8a; }
.status.error { background: #fff1f2; color: #9f1239; }
.study-list { display: grid; gap: .75rem; }
.study-row { display: grid; grid-template-columns: 1fr auto auto; gap: 1rem; align-items: center; padding: 1rem; border: 1px solid #dfe4eb; border-radius: .85rem; background: white; cursor: pointer; }
.study-row:hover { border-color: #c8102e; }
.study-row small { display: block; margin-top: .3rem; color: #64748b; }
.badge { border-radius: 999px; padding: .3rem .6rem; background: #f1f5f9; font-size: .78rem; font-weight: 750; }
.series-selection-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 1rem; margin-top: 1rem; border: 1px solid #bfdbfe; border-radius: .9rem; padding: 1rem; background: #f8fbff; }
.series-selection-toolbar h3 { margin: .25rem 0; }
.series-selection-toolbar p:last-child { margin: 0; color: #59677c; line-height: 1.45; }
.selection-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .6rem; }
.series-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: .75rem; margin-top: 1rem; }
.series-card { border: 1px solid #dce3eb; border-radius: .8rem; padding: .9rem; background: #f8fafc; }
.series-card.selected { border-color: #c8102e; background: #fff1f2; box-shadow: 0 0 0 2px rgb(200 16 46 / 8%); }
.series-selector { grid-template-columns: auto minmax(0, 1fr); align-items: start; cursor: pointer; }
.series-selector input { width: auto; margin-top: .18rem; }
.series-selector strong, .series-selector small { display: block; }
.series-selector small { margin-top: .3rem; color: #64748b; font-weight: 550; }
.series-preview-button { margin: .7rem 0 0 1.55rem; border: 0; padding: 0; background: transparent; color: #8f1025; text-decoration: underline; cursor: pointer; font-size: .82rem; font-weight: 750; }
.series-preview-panel { margin-top: 1rem; border: 1px solid #dbe5f0; border-radius: .9rem; padding: 1rem; background: #fbfdff; }
.instance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .75rem; margin-top: 1rem; }
.instance-card img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #0f172a; border-radius: .5rem; }
.frame-selector { grid-template-columns: auto 1fr; align-items: center; padding: .6rem .2rem 0; font-weight: 650; }
.frame-selector input { width: auto; }
.sample-note { margin: 1rem 0 0; color: #64748b; font-size: .88rem; }
.analysis-controls, .analysis-job-card, .interpretation-card { margin-top: 1rem; border: 1px solid #fecdd3; border-radius: .9rem; padding: 1rem; background: #fffafb; }
.analysis-warning { margin: 0; border-left: 4px solid #c8102e; padding: .75rem .9rem; background: #fff1f2; color: #881337 !important; line-height: 1.5; }
.analysis-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .75rem; margin-top: .8rem; }
.analysis-row select { width: auto; min-width: 220px; margin-right: auto; }
.analysis-job-card progress { margin: .85rem 0; }
.coverage-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .65rem; }
.coverage-grid div { border: 1px solid #e2e8f0; border-radius: .7rem; padding: .7rem; background: white; }
.coverage-grid strong, .coverage-grid span { display: block; }
.coverage-grid strong { color: #7f1018; font-size: 1.05rem; }
.coverage-grid span { margin-top: .2rem; color: #64748b; font-size: .78rem; }
.report-section { margin-top: 1rem; }
.report-section h3 { margin: 0 0 .4rem; font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; color: #6b1522; }
.report-section p { white-space: pre-wrap; line-height: 1.55; color: #253047; }
.review-form { display: grid; gap: .8rem; margin-top: 1rem; border-top: 1px solid #e5e7eb; padding-top: 1rem; }
.review-form h3 { margin: 0; }
.review-form .signoff { grid-template-columns: auto 1fr; align-items: start; border: 1px solid #fde68a; border-radius: .7rem; padding: .8rem; background: #fffbeb; color: #78350f; }
.review-form .signoff input { width: auto; margin-top: .2rem; }
@media (max-width: 760px) { .warning-grid, .form-grid, .series-selection-toolbar, .coverage-grid { grid-template-columns: 1fr; } .topbar, .toolbar { flex-direction: column; } .study-row { grid-template-columns: 1fr; } .selection-actions { justify-content: flex-start; } }