/* exam.css — exam / mock-test view */
.exam-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin: -16px -14px 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.exam-timer {
  font-size: 1.15rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  white-space: nowrap;
}
.exam-timer.low { color: var(--red); }
.exam-topbar .spacer { flex: 1; }

.exam-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }

.palette-wrap { margin: 16px 0; }
.palette-legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: .82rem; color: var(--muted); margin-top: 10px; }
.palette-legend .legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 12px; height: 12px; border-radius: 4px; display: inline-block; }
.legend-dot.notvisited { background: var(--surface2); border: 1px solid var(--border); }
.legend-dot.visited { background: var(--amber); }
.legend-dot.answered { background: var(--green); }
.legend-dot.marked { background: var(--purple); }

.exam-nav { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.exam-nav .btn { flex: 1; min-width: 120px; }

.exam-config .field { max-width: 420px; }
.config-toggles { display: grid; gap: 4px; margin: 12px 0; }

.result-score {
  text-align: center;
  padding: 24px 12px;
}
.result-score .score-num { font-size: 2.4rem; font-weight: 800; color: var(--gold); line-height: 1.1; }
.result-score .score-total { color: var(--muted); }
.score-ring { width: 140px; height: 140px; margin: 0 auto 8px; }
.score-ring circle { fill: none; stroke-width: 10; }
.score-ring .ring-bg { stroke: var(--surface2); }
.score-ring .ring-fg { stroke: var(--gold); stroke-linecap: round; transform: rotate(-90deg); transform-origin: center; }

.review-item { margin-bottom: 14px; }
.review-item .review-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 6px; }