:root {
  --bg: #f5f5f7; --panel: #ffffff; --panel2: #f5f5f7; --text: #1d1d1f; --dim: #6e6e73;
  --accent: #0071e3; --orange: #e87722; --teal: #0e9488; --fp: #d64562; --fn: #8f5cc9;
  --tp: #2f9e5f; --tn: #8a97a5; --border: #d2d2d7;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
.hidden { display: none !important; }
.hint { color: var(--dim); font-size: 12px; font-weight: normal; }
.error { color: var(--fp); }
button { background: #fff; color: var(--text); border: 1px solid var(--border); border-radius: 980px; padding: 6px 16px; min-height: 28px; cursor: pointer; font-size: 13px; font-family: inherit; transition: color .15s ease, border-color .15s ease, background-color .15s ease, transform .1s ease; }
button:hover { border-color: var(--accent); color: var(--accent); }
button:active { transform: translateY(1px); }
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 500; }
button.primary:hover { background: #0077ed; color: #fff; }
button:disabled { opacity: .35; cursor: default; }
button .ic { vertical-align: -2px; margin-right: 6px; }
#star-btn.on .ic path { fill: currentColor; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }
input, select { background: #fff; color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 5px 10px; font-size: 13px; font-family: inherit; }
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,113,227,.12); }
input[type=number] { width: 70px; }

#topbar { display: flex; align-items: center; gap: 16px; padding: 10px 20px; background: rgba(255,255,255,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 700; font-size: 16px; letter-spacing: -.02em; }
.brand .sub { font-weight: 400; color: var(--dim); font-size: 12px; margin-left: 8px; letter-spacing: 0; }
#version-info { color: var(--dim); font-size: 12px; }
#user-info { margin-left: auto; color: var(--dim); font-size: 12px; }

.screen { padding: 16px 20px; display: flex; flex-direction: column; gap: 14px; max-width: 1400px; margin: 0 auto; }
#overview { flex-direction: row; flex-wrap: wrap; align-items: flex-start; }
.panel { background: var(--panel); border: 1px solid rgba(0,0,0,.05); border-radius: 18px; padding: 16px 18px; box-shadow: 0 20px 40px -15px rgba(0,0,0,.06); }
.panel h2 { margin: 0 0 12px; font-size: 14px; font-weight: 600; letter-spacing: -.01em; }

#cm-panel { flex: 0 0 350px; }
#cm-grid { display: grid; grid-template-columns: 92px 112px 112px; gap: 6px; align-items: stretch; }
.cm-cell { padding: 12px 8px; border-radius: 12px; text-align: center; cursor: pointer; border: 2px solid transparent; transition: transform .12s ease, border-color .12s ease; }
.cm-cell:hover { transform: scale(1.03); }
.cm-cell.sel { border-color: var(--text); }
.cm-cell .n { font-size: 17px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.cm-cell .pct { font-size: 11px; opacity: .75; }
.cm-cell .tag-lbl { font-size: 10px; letter-spacing: .6px; opacity: .65; font-weight: 600; }
.cm-hdr { color: var(--dim); font-size: 11px; display: flex; align-items: center; justify-content: center; text-align: center; }
#cm-caption { margin-top: 10px; color: var(--dim); font-size: 12px; }

#filters-panel { flex: 1 1 380px; display: flex; flex-direction: column; gap: 10px; }
.filter-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filter-row .lbl { color: var(--dim); font-size: 12px; min-width: 40px; }
.chip { display: inline-block; padding: 3px 12px; border-radius: 980px; background: var(--panel2); border: 1px solid var(--border); cursor: pointer; font-size: 12px; user-select: none; transition: all .12s ease; }
.chip:hover { border-color: var(--accent); }
.chip.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.chip.tag-on { background: var(--teal); color: #fff; border-color: var(--teal); }
#queue-status { color: var(--dim); font-size: 13px; }

#list-panel { flex: 1 1 100%; }
#case-list { max-height: 40vh; overflow-y: auto; display: flex; flex-direction: column; }
.case-row { display: grid; grid-template-columns: 110px 70px 90px 90px 70px 1fr; gap: 10px; padding: 5px 10px; border-bottom: 1px solid #f0f0f2; cursor: pointer; font-size: 13px; border-radius: 8px; font-variant-numeric: tabular-nums; }
.case-row:hover { background: var(--panel2); }
.case-row .starred { color: #e8a30c; }
.badge { display: inline-block; padding: 1px 10px; border-radius: 980px; font-size: 11px; font-weight: 600; }
.badge.FP { background: #fce8ee; color: #b52a4e; }
.badge.FN { background: #f1e9fb; color: #6d3caf; }
.badge.TP { background: #e4f5eb; color: #1d7a43; }
.badge.TN { background: #eef0f3; color: #55606b; }

#case { max-width: 1200px; }
#case-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
#case-title { font-weight: 700; font-size: 15px; letter-spacing: -.01em; }
#case-meta, #case-pos, #cm-caption, #queue-status, #frame-label { font-variant-numeric: tabular-nums; }
#case-meta, #case-pos { color: var(--dim); font-size: 12px; }
.spacer { flex: 1; }

#trace-wrap { padding: 8px; }
#trace-svg { width: 100%; height: 240px; display: block; }

#strip-controls { display: flex; gap: 18px; align-items: center; margin-bottom: 10px; color: var(--dim); font-size: 12px; }
#filmstrip { display: flex; flex-direction: column; gap: 3px; overflow-x: auto; padding-bottom: 4px; }
.strip-row { display: flex; gap: 2px; align-items: center; }
.strip-row .row-lbl { flex: 0 0 82px; font-size: 11px; color: var(--dim); text-align: right; padding-right: 8px; }
.strip-row canvas { image-rendering: pixelated; border: 1px solid var(--border); border-radius: 3px; cursor: pointer; }
.strip-row canvas.cur { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.strip-row canvas.ext { opacity: .45; }
#bigview-row { display: flex; gap: 12px; margin-top: 12px; align-items: center; }
#bigview-row canvas { image-rendering: pixelated; border: 1px solid var(--border); border-radius: 8px; }
#frame-label { color: var(--dim); font-size: 13px; }
#scrub { width: 100%; margin-top: 10px; accent-color: var(--accent); }

#annot-bar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
#star-btn.on { color: #b07708; border-color: #e8a30c; background: #fdf6e3; }
#tag-chips .chip { margin-right: 4px; }
#note-input { flex: 1; min-width: 200px; }

.chip.flag-on { background: #b0620e; color: #fff; border-color: #b0620e; }
#case-analysis { font-size: 13px; }
.analysis-title { font-weight: 600; font-size: 12px; color: var(--dim); text-transform: uppercase; letter-spacing: .5px; display: block; margin-bottom: 6px; }
.analysis-item { padding: 2px 0; }
.flag-kind { display: inline-block; min-width: 84px; margin-right: 10px; font-size: 10px; color: var(--dim); text-transform: uppercase; letter-spacing: .4px; }
.sum-line { margin-bottom: 8px; }
.primary-mark { font-size: 10px; background: #fdf1e2; color: #a05a12; padding: 1px 7px; border-radius: 980px; margin-left: 4px; letter-spacing: .3px; }
.sum-table { border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
.sum-table th, .sum-table td { border-bottom: 1px solid #f0f0f2; padding: 3px 12px 3px 0; text-align: left; }
.sum-table th { color: var(--dim); font-weight: 500; font-size: 12px; }

#brand-home { cursor: pointer; }
#tour-btn { width: 28px; height: 28px; padding: 0; border-radius: 50%; font-weight: 600; }
#ai-rebuttal-btn { width: 100%; margin-top: 10px; background: #f0f6ff; border-color: #b9d7f7; color: #0b5cad; font-weight: 500; }
#ai-rebuttal-btn:hover { background: #e3efff; }
#review-filter-note { font-size: 13px; }
#review-filter-note .chip { background: #fdf1e2; border-color: #eeca96; color: #8a5410; }
.sum-clickable { cursor: pointer; text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 3px; }
.sum-clickable:hover { color: var(--accent); }
.case-row .row-star { cursor: pointer; user-select: none; }
.case-row .row-star:hover { color: var(--accent); }
.row-tag { display: inline-block; padding: 0 8px; border-radius: 980px; background: #e9f5f3; color: #0b6a60; font-size: 11px; margin-right: 4px; }
.row-tag.mine { cursor: pointer; }
.row-tag.mine:hover { background: #fce8ee; color: #b52a4e; text-decoration: line-through; }

#modal-root { position: fixed; inset: 0; background: rgba(20,22,26,.45); display: flex; align-items: center; justify-content: center; z-index: 90; }
#modal-card { position: relative; background: #fff; border-radius: 20px; max-width: 760px; width: calc(100vw - 48px); max-height: 82vh; overflow-y: auto; padding: 28px 34px; box-shadow: 0 24px 80px rgba(0,0,0,.25); }
#modal-close { position: sticky; top: 0; float: right; width: 30px; height: 30px; padding: 0; border-radius: 50%; font-size: 16px; }
#modal-body h2 { margin: 0 0 4px; font-size: 18px; letter-spacing: -.01em; }
#modal-body h3 { margin: 20px 0 6px; font-size: 14px; }
#modal-body p, #modal-body li { font-size: 13px; line-height: 1.55; }
#modal-body .disclaimer { background: #fdf6e3; border: 1px solid #eeca96; border-radius: 10px; padding: 10px 14px; font-size: 12px; color: #7a4c0d; margin: 10px 0 4px; }
#modal-body .stat { font-variant-numeric: tabular-nums; font-weight: 600; }
#modal-body a { color: var(--accent); text-decoration: none; }
#modal-body a:hover { text-decoration: underline; }
#modal-body .examples { color: var(--dim); font-size: 12px; }
#modal-body .suggest { background: #f0f6ff; border-left: 3px solid var(--accent); padding: 8px 12px; border-radius: 6px; font-style: italic; }

#tour-highlight { position: fixed; z-index: 95; border-radius: 14px; box-shadow: 0 0 0 4px var(--accent), 0 0 0 9999px rgba(15,17,21,.55); pointer-events: none; transition: all .25s ease; }
#tour-bubble { position: fixed; z-index: 96; background: #fff; border-radius: 14px; padding: 16px 18px; max-width: 360px; box-shadow: 0 12px 40px rgba(0,0,0,.3); }
#tour-text { font-size: 13px; line-height: 1.5; margin-bottom: 12px; }
#tour-text b { display: block; margin-bottom: 3px; font-size: 14px; }
#tour-nav { display: flex; align-items: center; gap: 8px; }

#login-screen { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; }
.login-box { text-align: center; background: var(--panel); border: 1px solid rgba(0,0,0,.04); border-radius: 20px; padding: 44px 60px; box-shadow: 0 4px 24px rgba(0,0,0,.08); }
.login-box h1 { letter-spacing: -.02em; }
#loading { position: fixed; bottom: 12px; right: 16px; color: var(--dim); font-size: 12px; }
#boot-loading { position: fixed; inset: 0; background: var(--bg); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; z-index: 50; }
#boot-msg { color: var(--dim); font-size: 14px; }
.spinner { width: 34px; height: 34px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2s; } }