:root {
  --bg: #f4f3f1;
  --panel-bg: #ffffff;
  --border: #d8d5d0;
  --text: #2b2b2b;
  --text-muted: #6b6b6b;
  --accent: #4a6fa5;
  --accent-soft: #DBE2F0;
  --stage-bg: #6b6b6b;
  --ok: #2f7a4f;
  --ok-soft: #e3f1e8;
  --warn: #a4562a;
  --warn-soft: #f7e8de;
  --draft: #8a6d1f;
  --draft-soft: #fbf1d3;
  --first: #9aa9c2;
  --final: #4a6fa5;
  --expert: #2b2b2b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: "Source Sans 3", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.gr-shell { display: flex; flex-direction: column; height: 100vh; }

/* ---------- Header + stepper ---------- */
.gr-header {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px 20px; background: var(--panel-bg); border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.gr-eyebrow { margin: 0; font-size: 12px; color: var(--text-muted); letter-spacing: .02em; }
.gr-title h1 { margin: 2px 0 0; font-size: 18px; font-weight: 600; }

.gr-stepper { display: flex; gap: 4px; flex-wrap: wrap; }
.step {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text-muted);
  padding: 6px 12px 6px 6px; border-radius: 999px; font: inherit; font-size: 13px; cursor: pointer;
}
.step:disabled { cursor: not-allowed; opacity: .55; }
.step-num {
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  background: #fff; border: 1px solid var(--border); font-size: 12px; font-variant-numeric: tabular-nums;
}
.step.done { color: var(--text); }
.step.done .step-num { background: var(--accent-soft); border-color: var(--accent-soft); }
.step.current { background: var(--accent); border-color: var(--accent); color: #fff; }
.step.current .step-num { background: #fff; color: var(--accent); border-color: #fff; }

/* ---------- Body layout ---------- */
.gr-body { flex: 1 1 auto; display: flex; overflow: hidden; }

.gr-panel {
  flex: 0 0 420px; max-width: 420px; background: var(--panel-bg); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; overflow-y: auto;
}
#panelContent { padding: 20px 24px; flex: 1 1 auto; }
.gr-panel h2 { margin: 0 0 12px; font-size: 18px; font-weight: 600; }
.gr-panel h3 { margin: 20px 0 6px; font-size: 14px; font-weight: 600; }
.gr-panel p, .gr-panel li { font-size: 14px; line-height: 1.6; }
.gr-panel ul { padding-left: 20px; margin: 6px 0; }
.muted { color: var(--text-muted); font-size: 13px !important; }

.gr-panel-nav {
  position: sticky; bottom: 0; display: flex; justify-content: space-between; gap: 8px;
  padding: 12px 24px; background: var(--panel-bg); border-top: 1px solid var(--border);
}

/* ---------- Buttons ---------- */
.btn {
  font: inherit; font-size: 14px; border-radius: 6px; padding: 9px 16px; cursor: pointer;
  border: 1px solid var(--border); background: #fff; color: var(--text); text-decoration: none; display: inline-block;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #3d5e8f; }
.btn-primary:disabled { background: #b9c3d3; border-color: #b9c3d3; cursor: not-allowed; }
.btn-ghost { background: transparent; }
.btn-small { font-size: 13px; padding: 6px 12px; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Content pieces ---------- */
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; font-size: 14px; }
.facts dt { color: var(--text-muted); }
.facts dd { margin: 0; }

.callout { background: var(--bg); border-left: 3px solid var(--accent); padding: 10px 14px; margin: 16px 0; border-radius: 0 6px 6px 0; }
.callout p { margin: 0 0 8px; }
.callout p:last-child { margin-bottom: 0; }
.callout-label { font-size: 12px !important; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); margin: 0 0 4px !important; }

.badge-draft {
  display: inline-block; font-size: 11px; font-weight: 600; color: var(--draft); background: var(--draft-soft);
  border-radius: 4px; padding: 1px 6px; margin-left: 6px; vertical-align: middle;
}

.q { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; margin: 14px 0; }
.q legend { font-size: 14px; font-weight: 600; padding: 0 4px; }
.slider-row { display: flex; align-items: center; gap: 12px; }
.slider-row input { flex: 1; accent-color: var(--accent); }
.slider-val { min-width: 48px; text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }
.check { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; padding: 5px 0; line-height: 1.4; }
.check input { margin-top: 3px; accent-color: var(--accent); }

.feedback { border-radius: 6px; padding: 10px 12px; font-size: 14px; margin: 12px 0; line-height: 1.5; }
.feedback.ok { background: var(--ok-soft); color: var(--ok); }
.feedback.warn { background: var(--warn-soft); color: var(--warn); }

/* ---------- Guided stops ---------- */
.stop-head { display: flex; justify-content: space-between; align-items: baseline; }
.stop-count { font-size: 13px; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.stop-list { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-direction: column; gap: 2px; }
.stop-link {
  width: 100%; display: flex; align-items: center; gap: 10px; text-align: left; font: inherit; font-size: 13px;
  background: none; border: none; padding: 5px 6px; border-radius: 6px; cursor: pointer; color: var(--text-muted);
}
.stop-link:hover { background: var(--bg); }
.stop-link.current { background: var(--accent-soft); color: var(--text); font-weight: 600; }
.stop-dot {
  flex: 0 0 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px;
  border: 1px solid var(--border); background: #fff;
}
.stop-link.answered .stop-dot { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }

.stop-card { border-top: 1px solid var(--border); padding-top: 4px; }
.mag-tag { font-size: 12px !important; color: var(--text-muted); margin: 0 0 10px; }
.narration { margin: 10px 0 12px; }

.media { margin: 0 0 8px; }
.media video, .media audio { width: 100%; border-radius: 6px; background: #000; }
.media figcaption { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.media-ph {
  aspect-ratio: 16 / 7; border: 1px dashed var(--border); border-radius: 8px; background: var(--bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  color: var(--text-muted); font-size: 13px; text-align: center; padding: 10px;
}
.media-icon { font-size: 22px; color: var(--accent); }
.media code { font-size: 11px; }

.checkpoint { margin-top: 18px; padding: 12px 14px; background: var(--bg); border-radius: 8px; }
.cp-q { font-weight: 600; margin: 0 0 8px; }
.cp-opt {
  display: block; width: 100%; text-align: left; font: inherit; font-size: 14px; margin: 6px 0; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 6px; background: #fff; cursor: pointer;
}
.cp-opt:hover:not(:disabled) { border-color: var(--accent); }
.cp-opt:disabled { cursor: default; color: var(--text-muted); }
.cp-opt.correct { border-color: var(--ok); background: var(--ok-soft); color: var(--ok); }
.cp-opt.wrong { border-color: var(--warn); background: var(--warn-soft); color: var(--warn); }

/* ---------- Score comparison ---------- */
.compare { margin: 16px 0; display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: grid; grid-template-columns: 130px 1fr 44px; align-items: center; gap: 10px; font-size: 13px; }
.bar-track { height: 12px; background: var(--bg); border-radius: 6px; overflow: hidden; }
.bar-fill { display: block; height: 100%; border-radius: 6px; }
.bar-fill.first { background: var(--first); }
.bar-fill.final { background: var(--final); }
.bar-fill.expert { background: var(--expert); }
.bar-val { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }

.feat-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.feat-table th, .feat-table td { text-align: left; padding: 7px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
.feat-table th { font-weight: 600; color: var(--text-muted); }
.feat-table td:nth-child(n+2), .feat-table th:nth-child(n+2) { width: 70px; }
.feat-table tr.miss td:last-child { color: var(--warn); font-weight: 600; }
.feat-table tr.match td:last-child { color: var(--ok); }

/* ---------- Stage ---------- */
.gr-stage { flex: 1 1 auto; display: flex; flex-direction: column; min-width: 0; background: var(--stage-bg); }
.stage-tabs { display: flex; background: var(--panel-bg); border-bottom: 1px solid var(--border); }
.stage-tab {
  flex: 1 1 0; font: inherit; font-size: 14px; padding: 10px; border: none; border-right: 1px solid var(--border);
  background: #DBDBDB; cursor: pointer; color: var(--text);
}
.stage-tab:hover { background: #cfd6de; }
.stage-tab.active { background: var(--accent-soft); font-weight: 600; }

.stage-view { display: none; flex: 1 1 auto; position: relative; min-height: 0; }
.stage-view.active { display: block; }

.map-viewport { position: absolute; inset: 0; overflow: hidden; background: #f7f6f4; }
.map-inner {
  position: absolute; top: 0; left: 0; transform-origin: 0 0;
  transition: transform .7s cubic-bezier(.3, .7, .2, 1);
}
.map-inner img { width: 100%; height: 100%; display: block; user-select: none; }
@media (prefers-reduced-motion: reduce) { .map-inner { transition: none; } }

.marker {
  position: absolute; width: 28px; height: 28px; margin: -14px 0 0 -14px; border-radius: 50%;
  border: 2px solid #fff; background: var(--accent); color: #fff; font: inherit; font-size: 13px; font-weight: 600;
  cursor: pointer; box-shadow: 0 1px 4px rgba(0,0,0,.35);
  transform: scale(calc(1 / var(--z, 1))); transition: transform .7s cubic-bezier(.3, .7, .2, 1);
}
.marker.current { background: #fff; color: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 6px rgba(74,111,165,.25); }

.map-toolbar {
  position: absolute; left: 14px; right: 14px; bottom: 14px; display: flex; justify-content: space-between; align-items: center; pointer-events: none;
}
.map-toolbar > * { pointer-events: auto; }
.map-mag { font-size: 12px; color: #fff; background: rgba(0,0,0,.55); padding: 5px 10px; border-radius: 4px; }

#liveFrame { width: 100%; height: 100%; border: none; display: block; }
.live-hint {
  position: absolute; top: 12px; left: 50%; transform: translateX(-50%); max-width: 80%;
  background: rgba(43,43,43,.88); color: #fff; font-size: 13px; padding: 8px 14px; border-radius: 6px; pointer-events: none;
}

/* ---------- Narrow screens ---------- */
@media (max-width: 900px) {
  .gr-body { flex-direction: column-reverse; overflow: auto; }
  .gr-panel { flex: none; max-width: none; border-right: none; overflow: visible; }
  .gr-stage { flex: none; height: 55vh; }
  .gr-shell { height: auto; min-height: 100vh; }
}

/* ---------- ZX9 update: screencast tab, watch prompt, scoring ---------- */
.watch-btn {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  font: inherit; font-size: 14px; color: var(--text); cursor: pointer;
  background: var(--accent-soft); border: 1px solid var(--accent-soft); border-radius: 8px; padding: 10px 12px; margin: 4px 0 6px;
}
.watch-btn:hover { border-color: var(--accent); }
.watch-icon {
  flex: 0 0 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-size: 13px; padding-left: 2px;
}
.watch-sub { font-size: 12px; color: var(--text-muted); }
.stop-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.none-opt { border-top: 1px solid var(--border); margin-top: 6px; padding-top: 9px; }

.placeholder-note {
  font-size: 12px; color: var(--draft); background: var(--draft-soft); padding: 5px 10px; border-radius: 4px;
}

.cast-shell { position: absolute; inset: 0; display: flex; flex-direction: column; background: #3a3a3a; }
.cast-head {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: rgba(0,0,0,.25);
}
.cast-head .btn { flex: 0 0 auto; }
.cast-head .btn:disabled { opacity: .4; cursor: default; }
.cast-title { flex: 1 1 auto; margin: 0; color: #fff; font-size: 15px; font-weight: 600; text-align: center; }
.cast-body { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 18px; }
.cast-body video { width: 100%; max-height: calc(100% - 32px); background: #000; border-radius: 6px; }
.cast-caption { color: #e8e6e3; font-size: 13px; margin: 8px 0 0; }
.cast-ph {
  width: 100%; max-width: 720px; aspect-ratio: 16 / 9; border: 1px dashed rgba(255,255,255,.35); border-radius: 10px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; text-align: center;
  color: #e8e6e3; font-size: 14px; padding: 20px;
}
.cast-ph strong { font-size: 16px; color: #fff; }
.cast-ph-icon {
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; background: var(--accent);
  color: #fff; font-size: 20px; padding-left: 3px; margin-bottom: 4px;
}
.cast-ph-note { font-size: 12px; color: #bdbab5; }
.cast-ph-note code { background: rgba(255,255,255,.12); padding: 1px 5px; border-radius: 3px; }

.compare { position: relative; padding-bottom: 22px; }
.cutoff-mark {
  position: absolute; top: -4px; bottom: 18px;
  left: calc(130px + 10px + (100% - 130px - 44px - 20px) * var(--cut) / 100);
  border-left: 2px dashed var(--warn); pointer-events: none;
}
.cutoff-mark span {
  position: absolute; bottom: -18px; transform: translateX(-50%); white-space: nowrap;
  font-size: 11px; color: var(--warn); font-weight: 600;
}
.check input[type="radio"] { accent-color: var(--accent); margin-top: 3px; }