:root {
  --bg: #0b0b14;
  --panel: #151526;
  --panel-2: #1d1d34;
  --text: #f4f4ff;
  --muted: #a5a5c8;
  --pink: #ff2fb3;
  --cyan: #2ff3ff;
  --green: #36f58a;
  --red: #ff4d6d;
  --gold: #ffd84d;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: radial-gradient(circle at 50% -10%, #2a1140 0%, var(--bg) 55%) fixed;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.45;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.app { max-width: 560px; margin: 0 auto; padding: 16px; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--red); min-height: 1.4em; margin: 8px 0; }

.topbar { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.logo { flex: 1; margin: 0; font-size: 1.8rem; letter-spacing: 1px; }
.logo span { color: var(--pink); text-shadow: 0 0 12px var(--pink); }
.top-actions { display: flex; gap: 6px; }

h2 { margin: 8px 0 12px; }
.screen { animation: fade-in .3s ease; }
@keyframes fade-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.btn {
  font: inherit; font-weight: 700; color: var(--text); background: var(--panel-2);
  border: 2px solid transparent; border-radius: 14px; padding: 12px 20px;
  min-height: 48px; cursor: pointer; transition: transform .1s, box-shadow .2s;
}
.btn:hover { box-shadow: 0 0 14px rgba(255,255,255,.2); }
.btn:active { transform: scale(.96); }
.btn.small { min-height: 44px; padding: 8px 14px; }
.btn.big { width: 100%; min-height: 60px; font-size: 1.15rem; }
.btn.primary { background: var(--pink); color: #17001a; box-shadow: 0 0 16px rgba(255,47,179,.5); }
.btn.success { background: var(--green); color: #00210f; }
.btn.danger { background: var(--red); color: #26000a; }
.btn.ghost { background: transparent; border-color: var(--muted); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.deck-list { display: grid; gap: 12px; }
.deck {
  display: flex; align-items: center; gap: 16px; text-align: left; width: 100%;
  background: var(--panel); border: 2px solid var(--panel-2); border-radius: 16px;
  padding: 16px; color: inherit; font: inherit; cursor: pointer; min-height: 72px;
  transition: border-color .2s, transform .15s, box-shadow .2s;
}
.deck:hover { border-color: var(--cyan); box-shadow: 0 0 16px rgba(47,243,255,.35); transform: translateY(-2px); }
.deck-icon { font-size: 2rem; }
.deck-name { display: block; font-weight: 800; font-size: 1.1rem; }
.deck-blurb { color: var(--muted); font-size: .9rem; }

.player-fields { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 10px; }
.player-fields li { display: flex; gap: 8px; }
.player-fields input {
  flex: 1; min-height: 48px; font: inherit; color: var(--text); background: var(--panel);
  border: 2px solid var(--panel-2); border-radius: 12px; padding: 0 14px;
}
.player-fields input:focus { border-color: var(--cyan); outline: none; }
.row { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.row .btn { flex: 1; }

.scoreboard { list-style: none; padding: 0; margin: 0 0 12px; display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.scoreboard li {
  background: var(--panel); border: 2px solid var(--panel-2); border-radius: 12px;
  padding: 8px 12px; transition: border-color .2s, box-shadow .2s, transform .2s;
}
.scoreboard li.active { border-color: var(--pink); box-shadow: 0 0 14px rgba(255,47,179,.6); transform: scale(1.03); }
.p-name { display: block; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.p-score { font-size: 1.4rem; font-weight: 800; color: var(--cyan); }
.p-pips { color: var(--muted); font-size: .8rem; margin-left: 4px; }
.pop { animation: pop .5s ease; }
@keyframes pop { 0% { transform: scale(1); } 40% { transform: scale(1.5); color: var(--green); } 100% { transform: scale(1); } }

.turn { font-size: 1.1rem; margin: 8px 0; }
.card {
  background: linear-gradient(160deg, var(--panel-2), var(--panel)); border: 2px solid var(--cyan);
  box-shadow: 0 0 22px rgba(47,243,255,.25); border-radius: 20px; padding: 24px 20px;
  min-height: 220px; display: flex; flex-direction: column; justify-content: center; text-align: center; margin-bottom: 16px;
}
.card.flip { animation: flip .45s ease; }
.card.success { border-color: var(--green); box-shadow: 0 0 28px rgba(54,245,138,.6); }
.card.fail { border-color: var(--red); box-shadow: 0 0 28px rgba(255,77,109,.6); animation: shake .4s; }
@keyframes flip { from { transform: rotateY(90deg); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes shake { 25% { transform: translateX(-8px); } 75% { transform: translateX(8px); } }
.card-kind { margin: 0 0 8px; text-transform: uppercase; letter-spacing: 3px; color: var(--pink); font-weight: 800; }
.card-text { margin: 0; font-size: 1.35rem; font-weight: 700; }
.card-answer { margin: 16px 0 0; color: var(--green); font-weight: 800; font-size: 1.2rem; }
.timer { margin-top: 16px; display: flex; align-items: center; gap: 12px; }
.timer-bar { flex: 1; height: 12px; background: var(--bg); border-radius: 8px; overflow: hidden; }
#timer-fill { height: 100%; width: 100%; background: var(--green); transition: width 1s linear, background .3s; }
#timer-fill.low { background: var(--red); }
#timer-text { font-weight: 800; min-width: 2.5ch; text-align: right; }
.actions { display: grid; gap: 10px; margin-bottom: 12px; }

.win-title { font-size: 2.2rem; text-align: center; color: var(--pink); text-shadow: 0 0 18px var(--pink); animation: pop .8s ease; }
#screen-win { text-align: center; position: relative; overflow: hidden; }
.final-scores { list-style: none; padding: 0; margin: 16px 0; display: grid; gap: 8px; }
.final-scores li { background: var(--panel); border-radius: 12px; padding: 10px 14px; display: flex; justify-content: space-between; }
.confetti { position: absolute; inset: 0; pointer-events: none; }
.confetti i { position: absolute; top: -10px; width: 8px; height: 14px; animation: fall linear forwards; }
@keyframes fall { to { transform: translateY(100vh) rotate(720deg); } }

dialog { background: var(--panel); color: var(--text); border: 2px solid var(--pink); border-radius: 18px; max-width: 480px; width: calc(100% - 32px); }
dialog::backdrop { background: rgba(0,0,0,.7); }
dialog li { margin-bottom: 8px; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 40px); opacity: 0;
  background: var(--panel-2); border: 2px solid var(--cyan); padding: 10px 18px; border-radius: 999px;
  transition: all .25s; pointer-events: none; font-weight: 700; z-index: 50;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

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

.deck-count { display: block; font-size: .75rem; color: var(--cyan); margin-top: 2px; font-weight: 600; }

.deck-tip { display: block; font-size: .75rem; color: var(--muted); margin-top: 4px; font-style: italic; }
.card.timeout { animation: shake .4s, pulse-red .6s; }
@keyframes pulse-red { 0%,100% { box-shadow: 0 0 28px rgba(255,77,109,.6); } 50% { box-shadow: 0 0 48px rgba(255,77,109,.9); } }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Neon deck cards */
.deck-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .deck-list { grid-template-columns: 1fr 1fr; }
}
.deck-card {
  position: relative;
  background: #0d0d18;
  border-radius: 20px;
  padding: 20px 16px;
  min-height: 220px;
  cursor: pointer;
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
  border: 2px solid transparent;
  text-align: center;
  color: #fff;
  font: inherit;
  width: 100%;
}
.deck-card:hover { transform: translateY(-4px) scale(1.02); }
.deck-card.standard { border-color: #ff2fb3; box-shadow: 0 0 20px rgba(255,47,179,.4), inset 0 0 40px rgba(47,243,255,.1); }
.deck-card.liquid { border-color: #ff4d6d; box-shadow: 0 0 20px rgba(255,77,109,.4), inset 0 0 40px rgba(255,216,77,.1); }
.deck-card.trivia { border-color: #2ff3ff; box-shadow: 0 0 20px rgba(47,243,255,.4), inset 0 0 40px rgba(255,216,77,.1); }
.deck-card.rapid { border-color: #36f58a; box-shadow: 0 0 20px rgba(54,245,138,.4), inset 0 0 40px rgba(255,216,77,.1); }
.deck-card .icon { font-size: 3rem; margin-bottom: 8px; filter: drop-shadow(0 0 8px currentColor); }
.deck-card .name { font-size: 1.6rem; font-weight: 900; letter-spacing: 1px; margin: 0; text-shadow: 0 0 12px currentColor; }
.deck-card .blurb { font-size: .9rem; opacity: .85; margin: 4px 0 12px; text-transform: uppercase; letter-spacing: 2px; }
.deck-card .count { font-size: 1.1rem; font-weight: 700; margin-top: auto; }
.deck-card .tip { font-size: .75rem; opacity: .7; margin-top: 4px; font-style: italic; }