:root {
  color-scheme: dark;
  --bg: #111314;
  --surface: #1a1e21;
  --surface-2: #23292d;
  --surface-3: #2d353a;
  --text: #f7f2e8;
  --muted: #aeb8bd;
  --line: #394348;
  --accent: #ffbe4a;
  --accent-2: #62d5b2;
  --danger: #ef6b64;
  --ok: #7bdf8b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(rgba(17, 19, 20, 0.72), rgba(17, 19, 20, 0.96)),
    url("assets/quiz-table.svg");
  background-size: cover;
  background-attachment: fixed;
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  touch-action: manipulation;
}

h1,
h2,
p {
  margin: 0;
}

.game-shell {
  height: 100vh;
  padding: 12px;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 10px;
  overflow: hidden;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(26, 30, 33, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #201408;
  font-weight: 950;
}

.brand h1 {
  font-size: 1.18rem;
  line-height: 1;
}

.brand p {
  color: var(--muted);
  margin-top: 2px;
  font-size: 0.92rem;
}

.top-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

.admin-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

select,
input,
textarea {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111517;
  color: var(--text);
  padding: 10px 12px;
}

textarea {
  width: 100%;
  resize: vertical;
}

.ghost-button,
.primary-button,
.add-player button,
.input-answer button {
  min-height: 48px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 850;
}

.ghost-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 0 16px;
}

.topic-button {
  width: 100%;
  min-height: 78px;
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  padding: 14px;
  text-align: left;
  cursor: pointer;
}

.topic-button strong {
  font-size: 1.2rem;
}

.topic-button span {
  color: var(--muted);
}

.online-panel {
  display: grid;
  gap: 10px;
}

.online-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.create-lobby-row,
.join-lobby-row {
  display: grid;
  gap: 8px;
}

.create-lobby-row {
  grid-template-columns: minmax(140px, 1fr) auto;
}

.join-lobby-row {
  grid-template-columns: minmax(140px, 1fr) minmax(110px, 140px) auto;
}

.create-lobby-row input,
.join-lobby-row input {
  min-width: 0;
}

.online-status {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-weight: 800;
}

.online-status strong {
  color: var(--accent);
  font-size: 1.25rem;
}

.online-status input {
  width: 100%;
  font-size: 0.9rem;
}

.online-status small {
  color: var(--muted);
}

.primary-button,
.add-player button,
.input-answer button {
  border: 0;
  background: var(--accent);
  color: #201408;
  padding: 0 18px;
}

.screen {
  display: none;
}

.screen.active {
  display: block;
  height: 100%;
  overflow: hidden;
}

.setup-layout {
  height: 100%;
  display: grid;
  grid-template-columns: 1.1fr minmax(360px, 520px);
  gap: 18px;
}

.hero-panel,
.setup-panel,
.question-module,
.results-module {
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 8px;
  background: rgba(26, 30, 33, 0.92);
  box-shadow: var(--shadow);
}

.hero-panel {
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding: clamp(24px, 5vw, 58px);
  background:
    linear-gradient(rgba(26, 30, 33, 0.18), rgba(26, 30, 33, 0.94)),
    url("assets/quiz-table.svg");
  background-size: cover;
  background-position: center;
}

.eyebrow {
  display: block;
  color: var(--accent-2);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.hero-panel h2,
.question-module h2,
.results-module h2 {
  font-size: clamp(1.8rem, 4.8vw, 4.4rem);
  line-height: 0.95;
  max-width: 960px;
}

.hero-panel p {
  margin-top: 18px;
  max-width: 680px;
  color: #e9dfcf;
  font-size: clamp(1rem, 1.7vw, 1.35rem);
}

.setup-panel {
  padding: 18px;
  display: grid;
  align-content: start;
  gap: 16px;
}

.field-row {
  display: grid;
  gap: 7px;
}

label,
.turn-panel span {
  color: var(--muted);
  font-weight: 800;
}

.helper-text {
  color: var(--muted);
  font-size: 0.92rem;
}

.player-editor {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.add-player {
  display: grid;
  grid-template-columns: 1fr 110px;
  gap: 8px;
}

.player-list,
.turn-picker,
.score-strip {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.player-chip,
.turn-chip,
.score-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text);
}

.player-chip {
  min-height: 44px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.remove-player {
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-size: 1.1rem;
}

.score-strip {
  margin-bottom: 8px;
  max-height: 56px;
  overflow: auto;
}

.score-chip {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  font-weight: 900;
}

.score-chip.active {
  border-color: var(--accent);
  background: rgba(255, 190, 74, 0.16);
}

.score-chip small {
  color: var(--muted);
  font-size: 0.8rem;
}

.question-module {
  height: calc(100vh - 126px);
  min-height: 0;
  padding: clamp(12px, 2vw, 22px);
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 10px;
  overflow: hidden;
}

.module-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 18px;
}

.timer {
  width: 74px;
  height: 74px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 7px solid var(--accent);
  border-radius: 50%;
  font-size: 1.8rem;
  font-weight: 950;
}

.turn-panel {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

#activePlayerName {
  font-size: clamp(1.2rem, 2.4vw, 1.9rem);
}

.turn-picker {
  grid-column: 1 / -1;
}

.turn-chip {
  min-height: 36px;
  padding: 0 14px;
  cursor: pointer;
}

.turn-chip.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #201408;
  font-weight: 900;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 10px;
  min-height: 0;
  overflow: auto;
}

.answer-option {
  min-height: clamp(82px, 13vh, 132px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  padding: 16px;
  text-align: left;
  cursor: pointer;
  font-size: clamp(1rem, 2vw, 1.55rem);
  font-weight: 900;
}

.answer-option.correct {
  border-color: var(--ok);
  background: rgba(123, 223, 139, 0.18);
}

.answer-option.wrong {
  border-color: var(--danger);
  background: rgba(239, 107, 100, 0.18);
}

.sort-list,
.pair-board,
.estimate-results {
  display: grid;
  gap: 8px;
  min-height: 0;
  overflow: auto;
}

.sort-item {
  min-height: 58px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 12px 14px;
}

.sort-item strong {
  font-size: clamp(1.1rem, 2vw, 1.55rem);
}

.sort-actions {
  display: flex;
  gap: 8px;
}

.sort-actions button,
.pair-card,
.buzzer-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-3);
  color: var(--text);
  cursor: pointer;
}

.sort-actions button {
  width: 54px;
  height: 48px;
  font-size: 1.4rem;
  font-weight: 900;
}

.wide-action {
  width: 100%;
  min-height: 58px;
}

.pair-board {
  grid-template-columns: 1fr 1fr;
}

.pair-column {
  display: grid;
  gap: 10px;
}

.pair-card {
  min-height: 58px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 12px;
  text-align: left;
  font-weight: 850;
}

.pair-card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.pair-card.active {
  border-color: var(--accent);
  background: rgba(255, 190, 74, 0.16);
}

.pair-card.used {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.buzzer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 10px;
  min-height: 0;
  overflow: auto;
}

.buzzer-button {
  min-height: clamp(76px, 12vh, 122px);
  background: var(--accent);
  color: #201408;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 950;
}

.estimate-row {
  min-height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 0 16px;
  font-size: 1.25rem;
  font-weight: 900;
}

.winner-row {
  border-color: var(--ok);
  background: rgba(123, 223, 139, 0.16);
}

.input-answer {
  display: grid;
  grid-template-columns: 1fr minmax(160px, 220px);
  gap: 12px;
}

.input-answer input {
  min-height: 58px;
  font-size: clamp(1.2rem, 3vw, 2rem);
}

.input-answer button {
  min-height: 58px;
}

.module-foot {
  min-height: 54px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.question-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.flag-button {
  min-width: 48px;
  text-align: center;
  font-size: 1.3rem;
}

#feedbackText {
  color: #e9dfcf;
  font-size: clamp(0.95rem, 1.6vw, 1.18rem);
}

.results-module {
  height: 100%;
  min-height: 0;
  padding: clamp(24px, 5vw, 58px);
  display: grid;
  align-content: center;
  gap: 22px;
  overflow: hidden;
}

.results-list {
  display: grid;
  gap: 10px;
  max-width: 760px;
}

.result-row {
  min-height: 68px;
  display: grid;
  grid-template-columns: 54px 1fr auto;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 0 16px;
  font-size: 1.2rem;
  font-weight: 900;
}

.result-row strong {
  color: var(--accent);
}

.hidden {
  display: none !important;
}

.topic-menu {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(10px);
}

.topic-menu.hidden {
  display: none !important;
}

.topic-dialog {
  width: min(920px, 100%);
  height: min(760px, calc(100vh - 36px));
  display: grid;
  grid-template-rows: auto 1fr auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.report-dialog {
  width: min(680px, 100%);
  max-height: min(620px, calc(100vh - 36px));
  display: grid;
  grid-template-rows: auto 1fr auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.report-body {
  display: grid;
  gap: 12px;
  padding: 18px;
  overflow: auto;
}

#reportQuestionText {
  color: #e9dfcf;
  font-weight: 800;
}

.topic-dialog-head,
.topic-dialog-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.topic-dialog-head h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3.8vw, 3rem);
  line-height: 1;
}

.topic-dialog-foot {
  border-top: 1px solid var(--line);
  border-bottom: 0;
  justify-content: end;
  flex-wrap: wrap;
}

.topic-tree {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 14px 18px;
  overflow: auto;
}

.topic-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
  overflow: visible;
}

.topic-category,
.topic-item {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  cursor: pointer;
  line-height: 1.15;
}

.topic-category {
  position: relative;
  background: var(--surface-2);
  border-radius: 7px 7px 0 0;
  font-size: 1rem;
}

.topic-children {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 8px 12px 10px 42px;
}

.topic-children::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 12px;
  left: 28px;
  width: 2px;
  background: rgba(134, 239, 172, 0.3);
}

.topic-item {
  position: relative;
  min-height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.14);
  color: #e8dfd2;
}

.topic-item::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 50%;
  width: 14px;
  height: 2px;
  background: rgba(134, 239, 172, 0.3);
}

.topic-category input,
.topic-item input {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.topic-branch-icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-left: 2px solid var(--accent-2);
  border-bottom: 2px solid var(--accent-2);
  border-radius: 0 0 0 5px;
}

.topic-node-label {
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 800;
}

.topic-count {
  margin-left: auto;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 194, 80, 0.14);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
}

.answer-effect {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.answer-effect.hidden {
  display: none !important;
}

.effect-card {
  min-width: min(520px, calc(100vw - 32px));
  display: grid;
  gap: 8px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(26, 30, 33, 0.94);
  box-shadow: var(--shadow);
  text-align: center;
  animation: effect-pop 360ms ease-out both;
}

.answer-effect.is-wrong .effect-card {
  border-color: rgba(239, 107, 100, 0.78);
  animation: effect-shake 420ms ease-out both;
}

.effect-card span {
  color: var(--accent-2);
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 950;
}

.answer-effect.is-wrong .effect-card span {
  color: var(--danger);
}

.effect-card strong {
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: 1;
}

.effect-card p {
  color: var(--accent);
  font-size: clamp(1.35rem, 3vw, 2.4rem);
  font-weight: 950;
}

.answer-effect.is-wrong .effect-card p {
  color: var(--muted);
}

.effect-burst {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.effect-burst span {
  width: 12px;
  height: 20px;
  border-radius: 3px;
  background: var(--accent);
  transform: translate(0, 0) rotate(0);
  animation: confetti-pop 900ms ease-out forwards;
  animation-delay: var(--d);
}

.answer-effect.is-correct .effect-burst span:nth-child(3n) {
  background: var(--accent-2);
}

.answer-effect.is-correct .effect-burst span:nth-child(4n) {
  background: var(--ok);
}

.answer-effect.is-wrong .effect-burst span {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--danger);
  animation-name: wrong-burst;
}

@keyframes confetti-pop {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.6) rotate(0);
  }
  15% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(var(--x), var(--y)) scale(1) rotate(var(--r));
  }
}

@keyframes wrong-burst {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.4);
  }
  25% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
    transform: translate(calc(var(--x) * 0.65), calc(var(--y) * 0.45)) scale(1.4);
  }
}

@keyframes effect-pop {
  0% {
    opacity: 0;
    transform: scale(0.82) translateY(12px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes effect-shake {
  0% {
    opacity: 0;
    transform: translateX(0) scale(0.96);
  }
  20% {
    opacity: 1;
    transform: translateX(-12px) scale(1);
  }
  40% {
    transform: translateX(10px);
  }
  60% {
    transform: translateX(-7px);
  }
  80% {
    transform: translateX(4px);
  }
  100% {
    transform: translateX(0);
  }
}

@media (max-width: 900px) {
  .game-shell {
    padding: 8px;
  }

  .topbar,
  .module-head,
  .module-foot {
    align-items: stretch;
    flex-direction: column;
  }

  .top-controls {
    width: 100%;
  }

  .top-controls > * {
    flex: 1;
  }

  .setup-layout,
  .answer-grid,
  .pair-board,
  .buzzer-grid,
  .input-answer {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .question-module,
  .results-module {
    min-height: 0;
  }

  .timer {
    width: 62px;
    height: 62px;
  }

  .topic-dialog-head,
  .topic-dialog-foot {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-height: 760px) {
  .brand p {
    display: none;
  }

  .topbar {
    padding: 7px 10px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .question-module {
    height: calc(100vh - 102px);
    gap: 8px;
  }

  .question-module h2 {
    font-size: clamp(1.45rem, 4vw, 3rem);
  }

  .turn-picker {
    max-height: 40px;
    overflow: auto;
  }

  .answer-option {
    min-height: clamp(68px, 11vh, 98px);
  }
}

.admin-body {
  overflow: auto;
  background: var(--bg);
}

.admin-shell {
  min-height: 100vh;
  padding: 18px;
  display: grid;
  align-content: start;
  gap: 18px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.admin-header h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

.admin-card {
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 8px;
  background: rgba(26, 30, 33, 0.92);
  box-shadow: var(--shadow);
  padding: 18px;
  display: grid;
  gap: 12px;
}

.admin-login-row {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 10px;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(240px, 320px) minmax(360px, 1fr) minmax(360px, 520px);
  gap: 18px;
  align-items: start;
}

.admin-results {
  min-height: 520px;
}

.admin-editor {
  max-height: calc(100vh - 130px);
  overflow: auto;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.admin-section-head,
.admin-question header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
}

.admin-list,
.admin-question,
.admin-question header div,
.report-list,
.report-item {
  display: grid;
  gap: 10px;
}

.admin-question {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 14px;
}

.admin-question header div {
  gap: 4px;
}

.admin-question span,
.admin-question p,
.report-item span,
.report-item small {
  color: var(--muted);
}

.admin-question mark {
  border-radius: 999px;
  background: rgba(255, 190, 74, 0.16);
  color: var(--accent);
  padding: 6px 10px;
  white-space: nowrap;
}

.report-item {
  border-left: 3px solid var(--danger);
  background: rgba(239, 107, 100, 0.08);
  padding: 10px;
}

.report-item.is-done {
  border-left-color: var(--ok);
  background: rgba(123, 223, 139, 0.08);
}

@media (max-width: 900px) {
  .admin-grid,
  .admin-login-row,
  .admin-form-grid {
    grid-template-columns: 1fr;
  }
}