:root {
  --bg: #0b1016;
  --panel: #141d28;
  --panel2: #1b2633;
  --txt: #e9eff5;
  --muted: #93a1b0;
  --acc: #4cc2ff;
  --ok: #22c55e;
  --bad: #ef4444;
  --a0: #e04a4a;
  --a1: #2f6fe0;
  --a2: #e0a52f;
  --a3: #27a567;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font: 16px/1.55 ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 24px 16px 48px; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 20px; }

h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); font-weight: 600; margin: 26px 0 10px; }
.sub { color: var(--muted); font-size: 14px; }

.card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 26px 24px;
  width: 100%;
  max-width: 420px;
}
.field { margin: 14px 0; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
input, select {
  width: 100%;
  padding: 12px 13px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #0e151e;
  color: var(--txt);
  font: inherit;
}
input:focus, select:focus { outline: 2px solid var(--acc); outline-offset: -1px; }
#pin { font: 700 30px/1 ui-monospace, monospace; letter-spacing: 0.22em; text-align: center; padding: 16px 13px; }
/* UWAGA: w skrócie `font:` nie wolno użyć `inherit` jako rodziny — cała
   deklaracja jest wtedy nieważna i tekst spada do 16px. Dlatego osobne
   właściwości wszędzie tam, gdzie krój ma być odziedziczony. */
button {
  padding: 12px 18px;
  border-radius: 10px;
  border: 0;
  background: var(--acc);
  color: #06121b;
  font-weight: 650;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.45; cursor: default; filter: none; }
button.ghost { background: var(--panel2); color: var(--txt); border: 1px solid rgba(255, 255, 255, 0.14); }
.err { color: #fca5a5; font-size: 14px; min-height: 20px; margin-top: 10px; }

/* --- PIN na rzutniku --- */
.pinbox { background: var(--panel); border-radius: 18px; padding: 22px 26px; text-align: center; }
.pinbox .lab { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; }
.pinbox .big { font: 800 clamp(44px, 9vw, 92px) / 1 ui-monospace, monospace; letter-spacing: 0.1em; }
.pinbox .url { color: var(--acc); font-size: 17px; margin-top: 4px; }

/* --- pytanie --- */
.qtext {
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 34px);
  line-height: 1.3;
  text-align: center;
  margin: 8px 0 18px;
}
/* ekran nauczyciela idzie na rzutnik — wszystko o klasę większe */
body.host .wrap { max-width: 1240px; }
body.host .qtext { font-size: clamp(24px, 3.6vw, 44px); margin: 14px 0 22px; }
body.host .ans { font-size: clamp(17px, 2.1vw, 26px); min-height: 104px; }
body.host .timer .num { font-size: 46px; min-width: 74px; }
.grid4 { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
@media (max-width: 560px) { .grid4 { grid-template-columns: 1fr; } }
.ans {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 18px 18px;
  border-radius: 14px;
  border: 0;
  color: #fff;
  font-weight: 650;
  font-size: clamp(15px, 2vw, 20px);
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  min-height: 86px;
  transition: transform 0.08s, filter 0.12s;
}
.ans:hover { filter: brightness(1.1); }
.ans:active { transform: scale(0.985); }
.ans .sh { flex: 0 0 26px; height: 26px; }
.ans.a0 { background: var(--a0); }
.ans.a1 { background: var(--a1); }
.ans.a2 { background: var(--a2); color: #251c00; }
.ans.a3 { background: var(--a3); }
.ans.dim { opacity: 0.3; }
.ans.pick { outline: 4px solid #fff; outline-offset: 2px; }
.ans.right { outline: 4px solid var(--ok); outline-offset: 2px; }
.ans .cnt { margin-left: auto; font-variant-numeric: tabular-nums; opacity: 0.9; }

/* --- zegar / pasek --- */
.timer {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}
.timer .num { font: 800 34px/1 ui-monospace, monospace; min-width: 56px; text-align: center; }
.bar { flex: 1; height: 10px; background: var(--panel2); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--acc); transition: width 0.25s linear; }
.counter { color: var(--muted); font-size: 14px; white-space: nowrap; }

/* --- lobby / leaderboard --- */
.nicks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.nick { background: var(--panel2); border-radius: 99px; padding: 7px 14px; font-size: 15px; }
.nick button { background: none; color: var(--muted); padding: 0 0 0 7px; font-size: 15px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid rgba(255, 255, 255, 0.07); }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
.me td { background: rgba(76, 194, 255, 0.11); }

.banner { border-radius: 14px; padding: 16px 18px; margin: 10px 0; font-weight: 650; font-size: 19px; }
.banner.ok { background: rgba(34, 197, 94, 0.16); color: #86efac; }
.banner.bad { background: rgba(239, 68, 68, 0.16); color: #fca5a5; }
.banner.wait { background: var(--panel2); color: var(--muted); font-weight: 500; font-size: 16px; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.pill { background: var(--panel2); border-radius: 99px; padding: 5px 12px; font-size: 13px; color: var(--muted); }
.podium { display: grid; gap: 10px; grid-template-columns: 1fr; margin: 14px 0; }
.pod { background: var(--panel); border-radius: 14px; padding: 15px 18px; display: flex; align-items: center; gap: 14px; font-size: 18px; }
.pod b { font-size: 26px; min-width: 46px; }
.pod .score { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 700; }
.pod.p1 { background: linear-gradient(90deg, rgba(251, 191, 36, 0.22), rgba(251, 191, 36, 0.05)); }
.pod.p2 { background: linear-gradient(90deg, rgba(203, 213, 225, 0.18), rgba(203, 213, 225, 0.04)); }
.pod.p3 { background: linear-gradient(90deg, rgba(180, 120, 60, 0.2), rgba(180, 120, 60, 0.04)); }