.quiz-tracker-page,
.quiz-tracker-page * {
  box-sizing: border-box;
}

.quiz-tracker-page {
  display: grid;
  gap: 16px;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

.quiz-tracker-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  flex-wrap: wrap;
}

.quiz-tracker-head h2 {
  margin: 0;
}

.quiz-tracker-head p {
  margin: 4px 0 0;
  color: var(--muted, #64748b);
}

.quiz-tracker-key {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.quiz-key-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.74);
  border: 1px solid rgba(15,23,42,0.10);
  font-size: 0.88rem;
  white-space: nowrap;
}

.quiz-key-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--quiz-key-color, #64748b);
  flex: 0 0 auto;
}

.quiz-tracker-list {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 100%;
}

.quiz-student-card {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 14px;
  border-radius: 18px;
  background: rgba(255,255,255,0.82);
  border: 1px solid rgba(15,23,42,0.10);
  box-shadow: 0 14px 34px rgba(15,23,42,0.06);
  display: grid;
  gap: 12px;
  overflow: hidden;
}

.quiz-student-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
}

.quiz-student-name {
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.quiz-student-meta,
.quiz-mode-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--muted, #64748b);
  font-size: 0.83rem;
  min-width: 0;
}

.quiz-pill {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(15,23,42,0.06);
  color: #334155;
  white-space: nowrap;
}

.quiz-pill.is-warn {
  background: rgba(234,88,12,0.12);
  color: #9a3412;
}

.quiz-pill.is-good {
  background: rgba(22,163,74,0.12);
  color: #166534;
}

.quiz-mode-row {
  display: grid;
  grid-template-columns: minmax(0, 132px) minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-width: 0;
}

.quiz-mode-title {
  min-width: 0;
  font-weight: 800;
  color: #0f172a;
}

.quiz-mode-title small {
  display: block;
  font-weight: 600;
  color: var(--muted, #64748b);
  margin-top: 2px;
}

.quiz-progress-shell {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.quiz-progress-bar {
  width: 100%;
  height: 16px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(15,23,42,0.08);
  display: flex;
  min-width: 0;
}

.quiz-progress-segment {
  height: 100%;
  min-width: 0;
  background: rgba(15,23,42,0.10);
  border-right: 1px solid rgba(255,255,255,0.85);
  position: relative;
  overflow: hidden;
}

.quiz-progress-segment:last-child {
  border-right: 0;
}

.quiz-progress-segment > span {
  display: block;
  height: 100%;
  width: var(--quiz-segment-fill, 0%);
  background: var(--quiz-segment-color, #64748b);
}

.quiz-progress-fill {
  height: 100%;
  width: var(--quiz-fill, 0%);
  background: #2563eb;
}

.quiz-results-btn,
.quiz-refresh-btn {
  appearance: none;
  border: 1px solid rgba(15,23,42,0.12);
  background: rgba(255,255,255,0.72);
  color: #0f172a;
  border-radius: 999px;
  padding: 8px 10px;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
}

.quiz-results-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.quiz-empty,
.quiz-error {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(15,23,42,0.10);
  color: var(--muted, #64748b);
}

.quiz-error {
  color: #991b1b;
  background: rgba(254,226,226,0.72);
}

.quiz-results-dialog {
  width: min(520px, calc(100vw - 28px));
  border: 0;
  border-radius: 20px;
  padding: 0;
  background: transparent;
}

.quiz-results-dialog::backdrop {
  background: rgba(15,23,42,0.36);
}

.quiz-results-card {
  padding: 16px;
  border-radius: 20px;
  background: #fff;
  color: #0f172a;
  display: grid;
  gap: 12px;
}

.quiz-results-card h3 {
  margin: 0;
}

.quiz-result-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  padding: 10px 0;
  border-top: 1px solid rgba(15,23,42,0.10);
}

.quiz-result-row:first-of-type {
  border-top: 0;
}

@media (max-width: 760px) {
  .quiz-tracker-page {
    gap: 12px;
  }

  .quiz-student-top {
    grid-template-columns: minmax(0, 1fr);
  }

  .quiz-mode-row {
    grid-template-columns: minmax(0, 1fr);
    align-items: stretch;
  }

  .quiz-results-btn {
    justify-self: start;
  }
}

.quiz-header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  min-width: 0;
}

.quiz-search-field {
  display: grid;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  font-weight: 800;
  color: #0f172a;
}

.quiz-search-field input {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  border: 1px solid rgba(15,23,42,0.13);
  border-radius: 14px;
  padding: 11px 12px;
  font: inherit;
  background: rgba(255,255,255,0.82);
  color: #0f172a;
  outline: none;
}

.quiz-search-field input:focus {
  border-color: rgba(37,99,235,0.45);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.quiz-pill.is-neutral {
  background: rgba(100,116,139,0.14);
  color: #475569;
}

.quiz-pill.is-watch {
  background: rgba(234,179,8,0.18);
  color: #854d0e;
}

.quiz-pill.is-danger {
  background: rgba(220,38,38,0.13);
  color: #991b1b;
}

.quiz-settings-card select,
.quiz-settings-card input {
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(15,23,42,0.13);
  border-radius: 12px;
  padding: 10px 11px;
  font: inherit;
  background: #fff;
  color: #0f172a;
}

.quiz-settings-card input:disabled {
  background: rgba(15,23,42,0.04);
  color: #475569;
}

.quiz-settings-note {
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(15,23,42,0.05);
  color: #475569;
  font-size: 0.9rem;
  line-height: 1.45;
}

@media (max-width: 760px) {
  .quiz-header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .quiz-header-actions .quiz-refresh-btn {
    max-width: 100%;
    white-space: normal;
    text-align: left;
  }
}