:root {
  color-scheme: dark;
  --ink: #f8f5ff;
  --muted: #b9afce;
  --purple-950: #10051f;
  --purple-900: #1d0938;
  --purple-800: #32105d;
  --purple-700: #52208c;
  --purple-500: #8f4fe8;
  --gold: #f4c95d;
  --gold-bright: #ffe394;
  --danger: #ff6b82;
  --success: #6fe2ac;
  --panel: rgba(31, 12, 56, 0.82);
  --line: rgba(255, 255, 255, 0.11);
  --shadow: 0 24px 70px rgba(6, 1, 15, 0.38);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 5%, rgba(142, 77, 232, 0.28), transparent 28rem),
    radial-gradient(circle at 90% 20%, rgba(244, 201, 93, 0.11), transparent 24rem),
    linear-gradient(160deg, var(--purple-950), #16072b 55%, #090211);
}
.shell, .display-page { position: relative; z-index: 1; }
.sparkle-field { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.sparkle { position: absolute; left: var(--x); top: var(--y); width: var(--size); height: var(--size); border-radius: 50%; background: var(--gold-bright); box-shadow: 0 0 calc(var(--size) * 2.8) var(--gold), 0 0 calc(var(--size) * 5) rgba(143,79,232,.5); opacity: 0; animation: sparkle-drift var(--duration) ease-in-out var(--delay) infinite; }
@keyframes sparkle-drift { 0%, 100% { opacity: 0; transform: translate3d(0, 12px, 0) scale(.4); } 35% { opacity: .75; } 60% { opacity: .28; transform: translate3d(var(--drift), -18px, 0) scale(1); } }
.question-pulse, .headline-pulse { animation: question-pulse 2.2s ease-in-out infinite; transform-origin: center; }
@keyframes question-pulse { 0%, 100% { transform: scale(1); text-shadow: 0 0 0 rgba(143,79,232,0); } 50% { transform: scale(1.035); text-shadow: 0 0 42px rgba(143,79,232,.42); } }
.countdown-live { animation: countdown-pulse 1s ease-in-out infinite; }
@keyframes countdown-pulse { 0%, 100% { transform: scale(1); filter: brightness(1); } 50% { transform: scale(1.045); filter: brightness(1.18); } }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--gold-bright); }

.shell { min-height: 100vh; display: grid; grid-template-rows: auto 1fr; }
.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(16px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  background: rgba(12, 3, 25, 0.78);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 900; letter-spacing: -0.03em; }
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #211034;
  background: linear-gradient(145deg, var(--gold-bright), #d99c25);
  box-shadow: 0 8px 30px rgba(244, 201, 93, 0.24);
  font-size: 14px;
  letter-spacing: -0.06em;
}
.brand-copy strong { display: block; font-size: 18px; }
.brand-copy small { display: block; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.user-chip { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; background: var(--purple-700); }

.landing { display: grid; place-items: center; padding: 36px 18px; }
.landing-card {
  width: min(620px, 100%);
  padding: clamp(28px, 6vw, 58px);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(70, 25, 121, 0.74), rgba(26, 8, 49, 0.92));
  box-shadow: var(--shadow);
}
.eyebrow { margin: 0 0 12px; color: var(--gold); text-transform: uppercase; letter-spacing: .16em; font-weight: 900; font-size: 12px; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 14px; font-size: clamp(38px, 8vw, 72px); line-height: .95; letter-spacing: -.055em; }
.landing-card p { color: var(--muted); font-size: 17px; line-height: 1.6; }

.btn {
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 12px 18px;
  color: var(--ink);
  background: var(--purple-700);
  font-weight: 850;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform .16s ease, filter .16s ease, opacity .16s ease;
}
.btn:hover { filter: brightness(1.12); transform: translateY(-1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn.gold { color: #211034; background: linear-gradient(145deg, var(--gold-bright), #dca634); }
.btn.ghost { background: rgba(255,255,255,.075); border: 1px solid var(--line); }
.btn.danger { background: rgba(255, 107, 130, .14); color: #ffb1be; border: 1px solid rgba(255,107,130,.22); }
.btn.large { min-height: 52px; padding-inline: 26px; font-size: 16px; }

.player-layout {
  width: min(1260px, 100%);
  margin: 0 auto;
  min-height: calc(100vh - 72px);
  padding: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr);
  gap: 18px;
}
.quiz-stage, .chat-panel, .panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  border-radius: 24px;
  overflow: hidden;
}
.quiz-stage { display: flex; flex-direction: column; min-height: 520px; }
.question-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 22px; border-bottom: 1px solid var(--line); }
.question-kicker { color: var(--gold); font-size: 12px; text-transform: uppercase; letter-spacing: .13em; font-weight: 900; }
.question-countdown { display: grid; justify-items: end; gap: 4px; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .11em; font-weight: 850; }
.timer {
  flex: 0 0 auto;
  min-width: 78px;
  padding: 9px 13px;
  border-radius: 999px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: var(--gold-bright);
  background: rgba(244, 201, 93, .1);
  border: 1px solid rgba(244, 201, 93, .22);
  font-weight: 950;
  font-size: 22px;
}
.timer.urgent { color: #fff; background: rgba(255, 107, 130, .24); border-color: rgba(255,107,130,.4); }
.question-body { flex: 1; display: grid; place-items: center; padding: clamp(24px, 5vw, 58px); text-align: center; }
.question-body h2 { font-size: clamp(30px, 5vw, 58px); line-height: 1.05; letter-spacing: -.045em; max-width: 950px; }
.question-image { display: block; max-width: min(760px, 100%); max-height: 45vh; object-fit: contain; border-radius: 18px; margin: 0 auto 28px; box-shadow: 0 18px 50px rgba(0,0,0,.3); }
.stage-footer { padding: 15px 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 10px; }
.stat { padding: 8px 11px; border-radius: 10px; background: rgba(255,255,255,.055); color: var(--muted); font-size: 13px; }
.stat strong { color: var(--ink); }
.correct-badge { margin-left: auto; color: #102c20; background: var(--success); font-weight: 900; }

.chat-panel { display: grid; grid-template-rows: auto 1fr auto; min-height: 520px; }
.chat-title { padding: 18px 20px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.live-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 7px; background: var(--success); box-shadow: 0 0 14px var(--success); }
.feed { padding: 16px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; min-height: 0; }
.message { display: grid; grid-template-columns: 32px 1fr; gap: 9px; align-items: start; }
.message .avatar { width: 32px; height: 32px; }
.bubble { padding: 10px 12px; border-radius: 6px 15px 15px 15px; background: rgba(255,255,255,.07); line-height: 1.35; overflow-wrap: anywhere; }
.bubble strong { display: block; color: var(--gold-bright); font-size: 12px; margin-bottom: 3px; }
.message.private { grid-template-columns: 1fr; }
.message.private .bubble { border-radius: 15px; text-align: center; font-weight: 850; background: rgba(143,79,232,.2); border: 1px solid rgba(143,79,232,.32); }
.message.private.correct .bubble { color: #c9ffe3; background: rgba(53,169,111,.18); border-color: rgba(111,226,172,.35); }
.message.private.close .bubble { color: var(--gold-bright); background: rgba(244,201,93,.11); border-color: rgba(244,201,93,.25); }
.composer { padding: 14px; border-top: 1px solid var(--line); background: rgba(9,2,18,.7); }
.composer-row { display: flex; gap: 9px; }
.composer input {
  min-width: 0;
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  color: var(--ink);
  background: rgba(255,255,255,.07);
  outline: none;
}
.composer input:focus { border-color: var(--purple-500); box-shadow: 0 0 0 3px rgba(143,79,232,.14); }
.composer small { display: block; color: var(--muted); margin-top: 8px; }

.rankings { width: min(900px, 100%); margin: 24px auto 0; display: grid; gap: 8px; text-align: left; }
.rank-row { display: grid; grid-template-columns: 44px 1fr auto auto; gap: 12px; align-items: center; padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,.065); }
.rank-row.top { border: 1px solid rgba(244,201,93,.3); background: rgba(244,201,93,.09); }
.rank-number { color: var(--gold); font-weight: 950; font-size: 18px; }
.rank-name { font-weight: 800; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rank-detail { color: var(--muted); font-size: 13px; }
.rank-points { font-weight: 950; font-variant-numeric: tabular-nums; }

.host-shell { width: min(1440px, 100%); margin: 0 auto; padding: 22px; }
.host-grid { display: grid; grid-template-columns: 390px minmax(0, 1fr); gap: 18px; }
.panel { padding: 20px; }
.panel h2 { margin-bottom: 6px; }
.panel-subtitle { color: var(--muted); margin-bottom: 18px; }
.stack { display: grid; gap: 12px; }
.field { display: grid; gap: 7px; color: var(--muted); font-weight: 750; font-size: 13px; }
.field input, .field textarea, .field select {
  width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 11px 12px; color: var(--ink); background: rgba(255,255,255,.065); outline: none;
}
.field textarea { min-height: 90px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--purple-500); }
.quiz-list, .question-list { display: grid; gap: 9px; }
.history-list { display: grid; gap: 9px; }
.history-card { width: 100%; border: 1px solid var(--line); border-radius: 15px; padding: 13px; color: var(--ink); background: rgba(255,255,255,.045); display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; cursor: pointer; }
.history-card:hover, .history-card:focus-visible { border-color: var(--gold); background: rgba(244,201,93,.08); outline: none; }
.history-card strong, .history-card small { display: block; }
.history-card small { margin-top: 3px; color: var(--muted); }
.history-count { flex: 0 0 auto; padding: 7px 9px; border-radius: 10px; color: var(--gold-bright); background: rgba(244,201,93,.1); font-size: 12px; font-weight: 850; }
.winner-results { display: grid; gap: 9px; }
.winner-result-row { display: grid; grid-template-columns: 44px minmax(0,1fr) auto auto; gap: 12px; align-items: center; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.055); }
.winner-result-row.chosen { border-color: rgba(111,226,172,.35); background: rgba(111,226,172,.08); }
.winner-result-person { min-width: 0; }
.winner-result-person strong, .winner-result-person small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.winner-result-person small { margin-top: 3px; color: var(--muted); }
.winner-chosen { color: var(--success); text-align: right; font-weight: 900; }
.winner-chosen small, .winner-waiting { color: var(--muted); font-size: 11px; font-weight: 700; }
.quiz-card, .question-card { border: 1px solid var(--line); border-radius: 15px; padding: 13px; background: rgba(255,255,255,.045); }
.quiz-card { cursor: pointer; }
.quiz-card.selected { border-color: var(--gold); background: rgba(244,201,93,.08); }
.quiz-card strong, .question-card strong { display: block; }
.host-current-question { margin-top: 8px; font-size: clamp(20px, 2.2vw, 30px); transform-origin: left center; }
.quiz-card small, .question-card small { color: var(--muted); }
.question-card { display: grid; grid-template-columns: 44px 1fr auto; gap: 11px; align-items: center; }
.question-number { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; color: #241033; background: var(--gold); font-weight: 950; }
.protected-question { min-height: 72px; outline: none; }
.protected-question:focus-visible { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(244,201,93,.14); }
.question-content-wrap { min-width: 0; position: relative; }
.question-sensitive { visibility: hidden; user-select: none; }
.question-shield { position: absolute; inset: 0; display: flex; align-items: center; color: var(--gold-bright); text-transform: uppercase; letter-spacing: .1em; font-size: 11px; font-weight: 900; }
.protected-question:hover .question-sensitive,
.protected-question:focus .question-sensitive,
.protected-question:focus-within .question-sensitive { visibility: visible; user-select: text; }
.protected-question:hover .question-shield,
.protected-question:focus .question-shield,
.protected-question:focus-within .question-shield { display: none; }
.host-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 18px; }
.host-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 18px; }
.metric { border: 1px solid var(--line); border-radius: 16px; padding: 15px; background: rgba(255,255,255,.045); }
.metric strong { display: block; font-size: 28px; }
.metric small { color: var(--muted); }
.timer-metric { border-color: rgba(244,201,93,.35); background: rgba(244,201,93,.1); }
.timer-metric strong { color: var(--gold-bright); font-variant-numeric: tabular-nums; }
.timer-metric strong.urgent, .display-countdown strong.urgent { color: #fff; background: var(--danger); }
.notice { border-radius: 14px; padding: 12px 14px; color: var(--gold-bright); background: rgba(244,201,93,.09); border: 1px solid rgba(244,201,93,.2); }
.error { color: #ffb5c1; }
.hidden { display: none !important; }

.display-page { height: 100vh; display: grid; grid-template-rows: minmax(0, 1fr) auto; overflow: hidden; }
.display-main { min-height: 0; padding: 3vh 4vw 2vh; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .55fr); gap: 3vw; align-items: stretch; }
.display-question { display: grid; place-items: center; text-align: center; }
.display-question h1 { font-size: clamp(52px, 6.2vw, 112px); }
.display-live-metrics { display: flex; justify-content: center; align-items: stretch; gap: 16px; margin: 22px auto 0; }
.display-correct, .display-countdown { min-width: 190px; padding: 14px 24px; border: 1px solid rgba(244,201,93,.28); border-radius: 18px; background: rgba(244,201,93,.09); display: grid; place-items: center; }
.display-correct strong, .display-countdown strong { color: var(--gold-bright); font-size: clamp(36px, 4vw, 64px); line-height: 1; font-variant-numeric: tabular-nums; border-radius: 10px; padding: 3px 8px; }
.display-correct span, .display-countdown small { color: var(--muted); text-transform: uppercase; letter-spacing: .13em; font-size: 12px; font-weight: 900; }
.display-chat { max-height: 73vh; }
.display-scorebar { display: grid; grid-template-columns: 1fr auto auto; gap: 28px; align-items: center; padding: 18px 5vw; background: rgba(9,2,18,.9); border-top: 1px solid var(--line); font-size: 20px; }
.display-scorebar strong { color: var(--gold-bright); font-size: 28px; }
.winner-announcement { position: fixed; z-index: 60; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(760px, calc(100% - 32px)); padding: clamp(22px, 4vw, 42px); border: 2px solid var(--gold); border-radius: 28px; color: var(--ink); background: linear-gradient(145deg, rgba(78,27,132,.97), rgba(22,6,43,.98)); box-shadow: 0 0 0 9999px rgba(7,1,16,.58), 0 28px 100px rgba(0,0,0,.55), 0 0 70px rgba(244,201,93,.2); display: flex; justify-content: center; align-items: center; gap: 24px; text-align: left; animation: winner-arrival .55s cubic-bezier(.2,.85,.25,1.15) both; }
.winner-crown { font-size: clamp(52px, 8vw, 92px); filter: drop-shadow(0 8px 18px rgba(244,201,93,.3)); }
.winner-announcement div { display: grid; }
.winner-announcement small { color: var(--gold-bright); text-transform: uppercase; letter-spacing: .18em; font-size: 13px; font-weight: 950; }
.winner-announcement strong { font-size: clamp(38px, 7vw, 82px); line-height: 1; letter-spacing: -.05em; overflow-wrap: anywhere; }
.winner-announcement div > span { margin-top: 7px; color: var(--muted); font-size: clamp(16px, 2vw, 24px); }
@keyframes winner-arrival { from { opacity: 0; transform: translate(-50%, -44%) scale(.86); } to { opacity: 1; transform: translate(-50%, -50%) scale(1); } }

dialog { width: min(760px, calc(100% - 24px)); max-height: 80vh; padding: 0; color: var(--ink); background: #1b0a32; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(4,0,10,.78); backdrop-filter: blur(6px); }
.dialog-head { position: sticky; top: 0; padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; background: #1b0a32; border-bottom: 1px solid var(--line); }
.dialog-body { padding: 16px; }

@media (prefers-reduced-motion: reduce) {
  .question-pulse, .headline-pulse, .sparkle { animation: none; }
  .sparkle { opacity: .2; }
}

@media (max-width: 860px) {
  .topbar { height: 64px; }
  .brand-copy small { display: none; }
  .player-layout { min-height: calc(100vh - 64px); padding: 10px; grid-template-columns: 1fr; grid-template-rows: minmax(290px, 43vh) minmax(360px, 1fr); gap: 10px; }
  .quiz-stage, .chat-panel { min-height: 0; border-radius: 18px; }
  .question-head { padding: 12px 14px; }
  .question-body { padding: 18px; }
  .question-body h2 { font-size: clamp(25px, 8vw, 42px); }
  .question-image { max-height: 20vh; margin-bottom: 14px; }
  .stage-footer { padding: 10px 12px; }
  .correct-badge { margin-left: 0; }
  .feed { padding: 12px; }
  .composer { position: sticky; bottom: 0; }
  .host-grid { grid-template-columns: 1fr; }
  .host-shell { padding: 10px; }
  .host-metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .metric { padding: 11px; }
  .metric strong { font-size: 22px; }
  .rank-row { grid-template-columns: 36px minmax(0, 1fr) auto; }
  .rank-detail { display: none; }
  .display-main { grid-template-columns: 1fr; }
  .display-chat { display: none; }
  .winner-result-row { grid-template-columns: 36px minmax(0,1fr) auto; }
  .winner-result-row .btn, .winner-chosen, .winner-waiting { grid-column: 2 / -1; justify-self: stretch; text-align: center; }
}

@media (max-width: 520px) {
  .topbar { padding-inline: 12px; }
  .user-chip span { display: none; }
  .composer-row .btn { padding-inline: 14px; }
  .host-metrics { grid-template-columns: 1fr; }
  .question-card { grid-template-columns: 38px 1fr; }
  .question-card .btn { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}