:root {
  color-scheme: dark;
  --bg: transparent;
  --surface: rgba(13, 17, 23, 0.96);
  --text: #f8fafc;
  --muted: #c5cedb;
  --primary: #7c3aed;
  --primary-strong: #9f67ff;
  --primary-soft: rgba(124, 58, 237, 0.34);
  --correct: #22c55e;
  --correct-soft: rgba(34, 197, 94, 0.28);
  --wrong: #ef4444;
  --wrong-soft: rgba(239, 68, 68, 0.24);
  --border: rgba(255, 255, 255, 0.14);
  --answer-bg: rgba(255, 255, 255, 0.06);
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.38);
  font-family: Inter, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 280px;
  color: var(--text);
  background: transparent;
  overflow: auto;
}

.viewer-body {
  overflow: hidden;
}

button,
input {
  font: inherit;
}

.quiz-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: auto;
  width: 100vw;
  padding: 8px;
  overflow: hidden;
  background: transparent;
}

.quiz-shell--component {
  align-items: center;
  min-height: auto;
}

.quiz-card {
  width: min(96vw, 760px);
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: scale(calc(var(--overlay-scale-value, 75) / 100));
  transform-origin: center;
  opacity: 1;
  will-change: opacity;
  transition: opacity 180ms ease;
}

.quiz-card.is-fading {
  opacity: 1;
}

.quiz-card.is-hidden {
  display: none;
}

.quiz-topline,
.quiz-score {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.quiz-category {
  color: var(--primary-strong);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
}

.quiz-timer {
  min-width: 44px;
  text-align: right;
  font-weight: 800;
}

.quiz-question {
  margin: 8px 0 10px;
  font-size: 20px;
  line-height: 1.22;
  letter-spacing: 0;
}

.quiz-answers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 7px;
}

.answer-button {
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--answer-bg);
  text-align: left;
  cursor: pointer;
}

.answer-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.answer-button:hover,
.answer-button:focus-visible {
  border-color: var(--primary-strong);
  outline: none;
}

.answer-button.is-selected {
  border-color: var(--primary-strong);
  background: var(--primary-soft);
}

.submit-answer-button {
  min-height: 38px;
  padding: 8px 14px;
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: var(--primary);
  cursor: pointer;
}

.submit-answer-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.control-action-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 12px;
  border: 1px solid #d8deea;
  border-radius: 8px;
  background: #f8fafc;
}

.control-action-group h2 {
  margin: 0 0 4px;
  font-size: 15px;
}

.answer-button.is-correct {
  border-color: var(--correct);
  background: var(--correct-soft);
}

.answer-button.is-wrong {
  border-color: var(--wrong);
  background: var(--wrong-soft);
}

.quiz-status {
  min-height: 18px;
  margin: 8px 0;
  color: var(--muted);
  font-size: 12px;
}

.leaderboard-box {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 12px;
}

.config-shell {
  min-height: 100vh;
  padding: 22px;
  color: #172033;
  background: #f3f6fb;
  overflow: auto;
}

.config-panel {
  max-width: 1120px;
  padding: 22px;
  border: 1px solid #d9e1ee;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 16px 38px rgba(17, 24, 39, 0.08);
}

.config-panel h1 {
  margin: 0 0 8px;
  color: #111827;
  font-size: 24px;
}

.config-note {
  margin: 0 0 18px;
  color: #4b5563;
  line-height: 1.45;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 13px;
}

.config-grid label {
  display: grid;
  gap: 8px;
  color: #2f3b4d;
  font-size: 13px;
  font-weight: 700;
}

.config-grid input {
  min-height: 36px;
  padding: 8px 10px;
  border: 1px solid #ccd6e5;
  border-radius: 6px;
  color: #111827;
  background: #ffffff;
  font-weight: 400;
}

.config-grid select,
.config-grid textarea {
  min-height: 36px;
  padding: 8px 10px;
  border: 1px solid #ccd6e5;
  border-radius: 6px;
  color: #111827;
  background: #ffffff;
  font-weight: 400;
  line-height: 1.35;
}

.wide-field {
  grid-column: 1 / -1;
}

.config-grid button {
  justify-self: start;
  min-width: 142px;
  min-height: 38px;
  padding: 8px 14px;
  border: 0;
  border-radius: 6px;
  color: var(--text);
  background: var(--primary);
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease;
}

.config-grid button:active,
.control-panel button:active {
  transform: translateY(1px) scale(0.99);
  filter: brightness(0.94);
}

.config-grid button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.config-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 22px;
}

.tab-button {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid #c7d0df;
  border-radius: 6px;
  color: #172033;
  background: #f8fafc;
  cursor: pointer;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin: 0 0 16px;
  padding: 14px;
  border: 1px solid #d9e1ee;
  border-radius: 8px;
  background: #f8fafc;
}

.section-head h2 {
  margin: 0 0 6px;
  color: #111827;
  font-size: 18px;
}

.section-head p {
  margin: 0;
  color: #5b6677;
  line-height: 1.4;
}

.secondary-action,
#save-category-order,
#save-question-order {
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid #ccd6e5;
  border-radius: 6px;
  color: #172033;
  background: #ffffff;
  cursor: pointer;
}

.tab-button.is-active {
  border-color: var(--primary);
  color: #ffffff;
  background: var(--primary);
}

.tab-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

#tab-design:checked ~ .config-tabs label[for="tab-design"],
#tab-settings:checked ~ .config-tabs label[for="tab-settings"],
#tab-categories:checked ~ .config-tabs label[for="tab-categories"],
#tab-questions:checked ~ .config-tabs label[for="tab-questions"],
#tab-answers:checked ~ .config-tabs label[for="tab-answers"] {
  border-color: var(--primary);
  color: #ffffff;
  background: var(--primary);
}

.tab-panel {
  display: none;
}

#tab-design:checked ~ section[data-panel="design"],
#tab-settings:checked ~ section[data-panel="settings"],
#tab-categories:checked ~ section[data-panel="categories"],
#tab-questions:checked ~ section[data-panel="questions"],
#tab-answers:checked ~ section[data-panel="answers"],
.tab-panel.is-active {
  display: block;
}

.preview-frame {
  display: grid;
  gap: 8px;
  max-width: 430px;
  min-height: 170px;
  margin-top: 18px;
  padding: 16px;
  border: 2px solid var(--primary);
  border-radius: 8px;
  background: #f8fafc;
}

.preview-frame.is-max-preview {
  max-width: 720px;
  min-height: 260px;
}

.preview-frame span {
  color: #4b5563;
}

.preview-frame button {
  width: fit-content;
  min-height: 38px;
  padding: 8px 14px;
  border: 0;
  border-radius: 6px;
  color: #fff;
}

.preview-logo {
  width: 72px;
  height: 40px;
  border: 1px solid #c7d0df;
  border-radius: 6px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.admin-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  color: #4b5563;
}

.admin-item {
  display: grid;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid #d8deea;
  border-radius: 8px;
  background: #f8fafc;
}

.admin-item-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.admin-item-actions button {
  min-height: 32px;
  padding: 6px 10px;
  border: 0;
  border-radius: 6px;
  color: #ffffff;
  background: #7c3aed;
  cursor: pointer;
}

.sortable-list .admin-item {
  cursor: grab;
}

.admin-item.is-dragging {
  opacity: 0.55;
}

.admin-item strong {
  color: #111827;
  line-height: 1.35;
}

.admin-item span {
  display: block;
  color: #5b6677;
  line-height: 1.45;
}

.config-status {
  min-height: 22px;
  margin: 16px 0 0;
  color: #4b5563;
}

@media (min-width: 460px) {
  .quiz-shell--component .quiz-answers {
    grid-template-columns: 1fr 1fr;
  }
}

.control-body {
  margin: 0;
  color: #172033;
  background: #eef2f8;
  font-family: Arial, sans-serif;
}

.control-shell {
  min-height: 100vh;
  padding: 24px;
}

.control-panel {
  max-width: 1180px;
  padding: 20px;
  border: 1px solid #d8deea;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(17, 24, 39, 0.08);
}

.control-login,
.control-actions,
.control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.control-login label,
.control-grid section {
  display: grid;
  gap: 7px;
}

.control-login input,
.control-grid select {
  min-height: 38px;
  padding: 8px;
  border: 1px solid #c7d0df;
  border-radius: 6px;
}

.control-panel button {
  min-height: 40px;
  padding: 8px 12px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: #7c3aed;
  cursor: pointer;
}

.control-active-question,
.control-leaderboard-panel {
  padding: 14px;
  border: 1px solid #d8deea;
  border-radius: 8px;
  background: #f8fafc;
}

#active-question-options,
#control-leaderboard {
  display: grid;
  gap: 8px;
}

.control-option,
.control-leaderboard-row {
  padding: 9px 10px;
  border: 1px solid #d8deea;
  border-radius: 6px;
  background: #ffffff;
}

.control-option.is-correct {
  border-color: #22c55e;
  background: #ecfdf5;
}

#leaderboard-visible {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
  color: #64748b;
  font-size: 13px;
}

#leaderboard-visible::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #94a3b8;
}

#leaderboard-visible.is-visible {
  color: #15803d;
}

#leaderboard-visible.is-visible::before {
  background: #22c55e;
}