:root {
  --ink: #1e293b;
  --card: #ffffff;
  --sky: #3b82f6;
  --berry: #ec4899;
  --grape: #8b5cf6;
  --sun: #fbbf24;
  --grass: #22c55e;
  --tomato: #ef4444;
  --soft: #e2e8f0;
  --radius: 22px;
  font-family: ui-rounded, "Nunito", "Segoe UI Rounded", "Arial Rounded MT Bold", system-ui, sans-serif;
  color: var(--ink);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  font-size: 18px;
  background: linear-gradient(160deg, #7dd3fc, #c4b5fd 60%, #f9a8d4);
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: 0;
  border-radius: var(--radius);
  min-height: 44px;
  transition: transform .08s;
}
button:active:not(:disabled) { transform: translateY(3px); }
button:focus-visible { outline: 4px solid var(--grape); outline-offset: 2px; }

/* ---------- Top bar ---------- */

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  max-width: 520px;
  margin: 0 auto;
  padding: 12px 16px;
}
h1 { margin: 0; font-size: clamp(1.3rem, 6vw, 1.7rem); color: #fff; text-shadow: 0 2px 0 #0003; }
.lang { display: flex; gap: 2px; padding: 4px; background: #ffffff80; border-radius: 999px; }
.lang button { padding: 0 12px; font-weight: 800; background: transparent; border-radius: 999px; }
.lang button[aria-pressed="true"] { background: #fff; box-shadow: 0 2px 6px #0002; }

/* ---------- Cards ---------- */

main { max-width: 520px; margin: 0 auto; padding: 0 16px 32px; }
section {
  background: var(--card);
  border-radius: 28px;
  padding: 20px;
  box-shadow: 0 12px 30px #0002;
}
h2 { margin: 18px 0 8px; font-size: 1.35rem; }
section > h2:first-child { margin-top: 0; }

.name-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin: 0; }
.name-row strong { color: var(--grape); font-size: 1.15rem; }
.small { padding: 0 14px; background: #ede9fe; font-weight: 700; font-size: .95rem; }

.mode {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  column-gap: 12px;
  width: 100%;
  margin: 10px 0;
  padding: 14px 16px;
  text-align: left;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  box-shadow: 0 5px 0 #0003;
}
.mode .emoji { grid-row: span 2; font-size: 2rem; }
.mode small { font-size: .95rem; font-weight: 600; opacity: .95; }
[data-mode="sprint"] { background: var(--sky); }
[data-mode="lives"] { background: var(--berry); }
[data-mode="twenty"] { background: var(--grape); }

.tables { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 8px; }
.tables button { padding: 8px 0; font-size: 1.15rem; font-weight: 800; background: var(--sun); box-shadow: 0 4px 0 #d97706; }

.primary { padding: 0 20px; font-weight: 800; color: #fff; background: var(--grass); box-shadow: 0 4px 0 #15803d; }
.secondary { padding: 0 18px; font-weight: 700; background: var(--soft); box-shadow: 0 4px 0 #cbd5e1; }
.wide { width: 100%; margin-top: 20px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; }

.privacy { margin-top: 18px; font-size: .9rem; line-height: 1.45; }
.privacy summary { cursor: pointer; padding: 12px 0; font-weight: 700; color: #475569; }
.privacy p { margin: 4px 0 0; color: #334155; }

/* ---------- Game ---------- */

.hud { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; font-size: 1.1rem; font-weight: 800; }
.question { margin: 28px 0; text-align: center; font-size: clamp(2.8rem, 15vw, 4.2rem); font-weight: 900; }
.answers { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.answer {
  padding: 18px 0;
  font-size: 2.1rem;
  font-weight: 900;
  background: #fef3c7;
  box-shadow: 0 5px 0 #f59e0b;
}
.answer:disabled { cursor: default; }
.answer.correct { color: #fff; background: var(--grass); box-shadow: 0 5px 0 #15803d; }
.answer.wrong { background: #fecaca; box-shadow: 0 5px 0 var(--tomato); animation: shake .45s; }
.feedback { min-height: 1.5em; margin: 16px 0; text-align: center; font-size: 1.3rem; font-weight: 800; }

@keyframes shake {
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

.confetti {
  position: fixed;
  width: 10px;
  height: 14px;
  border-radius: 3px;
  background: hsl(var(--hue) 90% 60%);
  pointer-events: none;
  animation: burst 1s ease-out forwards;
}
@keyframes burst {
  40% { transform: translate(calc(var(--dx) * .6), var(--dy)) rotate(200deg); opacity: 1; }
  100% { transform: translate(var(--dx), calc(var(--dy) + 160px)) rotate(540deg); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .confetti { display: none; }
  .answer.wrong { animation: none; }
}

/* ---------- Result ---------- */

.big-score { margin: 8px 0; font-size: 2.4rem; font-weight: 900; color: var(--grape); }
.stats { padding: 0; list-style: none; font-size: 1.15rem; line-height: 1.8; }
.status { min-height: 1.4em; font-weight: 700; }

/* ---------- Leaderboard ---------- */

.tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.tabs button { padding: 0 12px; font-weight: 700; background: var(--soft); }
.tabs button[aria-pressed="true"] { color: #fff; background: var(--grape); }
.board-list { padding-left: 2.2em; font-size: 1.1rem; }
.board-list li { padding: 6px 0; border-bottom: 2px dashed var(--soft); }
.board-list li > * { display: inline-block; }
.board-list li b { float: right; }
.board-list li:nth-child(1)::marker { content: "🥇 "; }
.board-list li:nth-child(2)::marker { content: "🥈 "; }
.board-list li:nth-child(3)::marker { content: "🥉 "; }