:root {
  --bg: #05060f;
  --panel: rgba(13, 18, 36, 0.88);
  --line: rgba(126, 152, 255, 0.18);
  --text: #e8ecff;
  --muted: #8b98c4;
  --accent: #7cf9ff;
  --accent-2: #8a6bff;
  --good: #4ee39b;
  --bad: #ff6b8b;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1100px 560px at 18% -10%, rgba(138, 107, 255, 0.22), transparent 60%),
    radial-gradient(900px 500px at 88% 8%, rgba(124, 249, 255, 0.14), transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

[hidden] {
  display: none !important;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 14px 16px;
  gap: 12px;
}

/* ---------- шапка ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  border: none;
  background: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
  text-align: left;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  font-size: 19px;
  font-weight: 800;
  color: #06101f;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 22px rgba(124, 249, 255, 0.28);
}

.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand__name {
  font-size: 17px;
  font-weight: 700;
  white-space: nowrap;
}

.brand__tagline {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.nav,
.topbar__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ---------- кнопки и поля ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(126, 152, 255, 0.42);
}

.btn:active:not(:disabled) {
  transform: translateY(1px) scale(0.995);
}

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

.btn--primary {
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101f;
  box-shadow: 0 10px 30px rgba(124, 249, 255, 0.22);
}

.btn--primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #a6fcff, #9b82ff);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.05);
}

.btn--wide {
  width: 100%;
}

.btn--small {
  padding: 7px 12px;
  font-size: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  text-align: left;
}

.field__label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.input {
  width: 100%;
  padding: 11px 13px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: 15px;
}

.input:focus {
  outline: none;
  border-color: rgba(124, 249, 255, 0.55);
}

.input--code {
  letter-spacing: 0.32em;
  text-transform: uppercase;
  text-align: center;
  font-weight: 700;
}

.switch {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 4px 0 14px;
  font-size: 13px;
  color: var(--muted);
  text-align: left;
}

.switch input {
  width: 18px;
  height: 18px;
  accent-color: #7cf9ff;
}

.link {
  padding: 0;
  border: none;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: rgba(124, 249, 255, 0.4);
}

/* ---------- экраны ---------- */

.screens {
  flex: 1 1 auto;
}

.screen {
  display: none;
}

.screen.is-active {
  display: block;
  animation: fade 0.18s ease;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- главная ---------- */

.hero {
  max-width: 640px;
  margin: 6px auto 0;
  text-align: center;
}

.hero__title {
  margin: 4px 0 10px;
  font-size: clamp(26px, 6vw, 40px);
  line-height: 1.1;
  background: linear-gradient(135deg, #ffffff, #9fc8ff 60%, #8a6bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__text {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}

.home__name {
  max-width: 340px;
  margin: 0 auto;
}

.home__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 340px;
  margin: 0 auto;
}

.home__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  max-width: 420px;
  margin: 18px auto 0;
}

.stat {
  padding: 10px 8px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat strong {
  font-size: 20px;
  font-variant-numeric: tabular-nums;
}

.rules {
  max-width: 480px;
  margin: 20px auto 0;
  padding: 0 0 0 18px;
  text-align: left;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- карточки ---------- */

.card {
  width: 100%;
  max-width: 640px;
  margin: 0 auto 12px;
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.card--room {
  max-width: 480px;
}

.card__kicker {
  margin: 0 0 6px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.card__title {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.2;
}

.card__subtitle {
  margin: 18px 0 8px;
  font-size: 14px;
  color: var(--muted);
}

.card__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}

.card__hint {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  text-align: center;
}

.card__best {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.card__score {
  margin: 2px 0 6px;
  font-size: 52px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.grid2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  max-width: 640px;
  margin: 0 auto;
}

.grid2 .card {
  margin: 0;
}

/* ---------- комнаты ---------- */

.rooms {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.room-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
}

.room-row:hover {
  border-color: rgba(124, 249, 255, 0.45);
}

.room-row__code {
  font-weight: 700;
  letter-spacing: 0.14em;
}

.room-row__meta {
  color: var(--muted);
  font-size: 12px;
}

.room-row__go {
  margin-left: auto;
  color: var(--accent);
  font-weight: 600;
}

.room__code-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 4px 0 6px;
}

.room__code {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.room__settings {
  margin: 6px 0 12px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.players {
  list-style: none;
  margin: 0 0 6px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.player {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  font-size: 14px;
}

.player.is-host {
  border-color: rgba(124, 249, 255, 0.4);
}

.player__n {
  width: 18px;
  color: var(--muted);
  font-size: 12px;
}

.player__name {
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player__tag {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------- викторина ---------- */

.quiz {
  max-width: 640px;
  margin: 0 auto;
}

.quiz__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--muted);
  flex-wrap: wrap;
}

.quiz__bar b {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.quiz__score {
  margin-left: auto;
}

.quiz__streak {
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 11px;
}

.timer {
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
  margin-bottom: 12px;
}

.timer__fill {
  display: block;
  height: 100%;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.1s linear;
}

.timer__fill.is-low {
  background: linear-gradient(90deg, #ffb45e, var(--bad));
}

.question__title {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.45;
  color: var(--muted);
}

.question__loading {
  margin: 0;
  padding: 22px 0;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.question__error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 10px 0 4px;
}

.question__error .question__loading {
  padding: 0;
  max-width: 420px;
  line-height: 1.5;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, rgba(124, 249, 255, 0.22), rgba(138, 107, 255, 0.22));
  border: 1px solid rgba(124, 249, 255, 0.35);
  color: #d8f7ff;
}

.badge--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  color: var(--muted);
  font-weight: 600;
}

.items {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}

.item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}

.item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.item__name {
  font-size: 9px;
  line-height: 1.2;
  text-align: center;
  color: var(--muted);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.links {
  display: flex;
  gap: 14px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}

.options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 8px 6px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}

.option:hover:not(:disabled) {
  border-color: rgba(124, 249, 255, 0.5);
  background: rgba(124, 249, 255, 0.08);
}

.option:disabled {
  cursor: default;
}

.option__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
}

.option__name {
  text-align: center;
  line-height: 1.2;
}

.option.is-correct {
  border-color: var(--good);
  background: rgba(78, 227, 155, 0.14);
  box-shadow: 0 0 0 1px rgba(78, 227, 155, 0.35);
}

.option.is-wrong {
  border-color: var(--bad);
  background: rgba(255, 107, 139, 0.12);
}

.option.is-eliminated {
  opacity: 0.28;
}

.quiz__foot {
  display: flex;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
}

.roomboard {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 12px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.score-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  padding: 4px 2px;
}

.score-row.is-me {
  color: var(--accent);
  font-weight: 700;
}

.score-row__place {
  width: 16px;
  color: var(--muted);
  font-size: 11px;
}

.score-row__name {
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.score-row__score {
  font-variant-numeric: tabular-nums;
}

/* ---------- таблица рейтингов ---------- */

.board {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.board th {
  padding: 6px 8px;
  text-align: left;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-weight: 600;
}

.board td {
  padding: 8px;
  border-bottom: 1px solid rgba(126, 152, 255, 0.08);
  font-variant-numeric: tabular-nums;
}

.board tbody tr:first-child td {
  color: var(--accent);
  font-weight: 700;
}

#result-room {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ---------- реклама и подвал ---------- */

.ad-slot {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  max-width: 640px;
  margin: 0 auto;
}

.ad-slot--inline {
  margin-top: 14px;
}

.ad-slot__label {
  flex: 0 0 auto;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.ad-slot__body {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12px;
  color: var(--muted);
}

.ad-slot__note {
  margin: 0;
  line-height: 1.35;
}

.ad-slot.is-pro {
  display: none;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.footer p {
  margin: 0;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 0 0 auto;
}

.footer .link {
  font-size: 11px;
  white-space: nowrap;
}

/* ---------- уведомления и модальные окна ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 40;
  max-width: min(420px, calc(100% - 32px));
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(13, 18, 36, 0.97);
  color: var(--text);
  font-size: 13px;
  line-height: 1.4;
  text-align: center;
  transform: translate(-50%, 16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.6);
}

.toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(4, 6, 16, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal.is-visible {
  opacity: 1;
  visibility: visible;
}

.modal__box {
  width: min(360px, 100%);
  padding: 22px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
  text-align: center;
}

.modal__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
}

.modal__count {
  margin: 0 0 16px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

/* ---------- адаптив ---------- */

@media (max-width: 700px) {
  .app {
    padding: 8px 10px calc(10px + env(safe-area-inset-bottom));
    gap: 10px;
  }

  .brand__tagline {
    display: none;
  }

  .topbar {
    gap: 8px;
  }

  .topbar__actions {
    display: none;
  }

  .nav {
    margin-left: auto;
  }

  .nav .btn {
    padding: 8px 11px;
    font-size: 12px;
  }

  .items {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer {
    display: none;
  }

  .card {
    padding: 14px;
  }
}

@media (max-width: 380px) {
  .options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .option {
    font-size: 11px;
  }
}