:root {
  --bg: #0b1220;
  --bg-2: #121a2b;
  --panel: #182236;
  --text: #f4f7fb;
  --muted: #9fb0c9;
  --red: #e21b3c;
  --blue: #1368ce;
  --yellow: #d89e00;
  --green: #26890c;
  --accent: #3dd6c6;
  --danger: #ff5d6c;
  --ok: #3ddc97;
  --warn: #f0c14a;
  --radius: 18px;
  --font-display: "Fredoka", "Trebuchet MS", sans-serif;
  --font-body: "Nunito", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 10% -10%, #1c3358 0%, transparent 55%),
              radial-gradient(900px 500px at 100% 0%, #163528 0%, transparent 50%),
              var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.85rem 1.4rem;
  font-weight: 800;
  font-family: var(--font-body);
  cursor: pointer;
  transition: transform .12s ease, filter .12s ease, opacity .12s ease;
  color: #081018;
  background: var(--accent);
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn:active { transform: translateY(1px) scale(0.98); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 2px solid #345074;
}
.btn.danger { background: var(--danger); color: white; }
.btn.ok { background: var(--ok); }
.btn.block { width: 100%; }

.panel {
  background: color-mix(in srgb, var(--panel) 92%, black);
  border: 1px solid #2a3d5f;
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 18px 50px rgba(0,0,0,.28);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border-radius: 999px;
  padding: .35rem .75rem;
  font-weight: 800;
  font-size: .85rem;
}
.badge.ok { background: rgba(61,220,151,.18); color: var(--ok); }
.badge.bad { background: rgba(255,93,108,.18); color: var(--danger); }
.badge.warn { background: rgba(240,193,74,.18); color: var(--warn); }
.badge.neutral { background: rgba(159,176,201,.15); color: var(--muted); }

.input, select, textarea {
  width: 100%;
  background: #0d1524;
  color: var(--text);
  border: 1px solid #314867;
  border-radius: 14px;
  padding: .85rem 1rem;
  font: inherit;
}
textarea { min-height: 140px; resize: vertical; }
label { display: block; font-weight: 700; margin-bottom: .4rem; color: var(--muted); }

.kahoot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.kahoot-btn {
  position: relative;
  min-height: 120px;
  border: 0;
  border-radius: 18px;
  color: white;
  font-size: clamp(1rem, 2.4vw, 1.6rem);
  font-weight: 800;
  padding: 1.2rem;
  text-align: left;
  cursor: pointer;
  box-shadow: inset 0 -6px rgba(0,0,0,.18);
  transition: transform .12s ease, filter .12s ease, opacity .2s ease;
}
.kahoot-btn:active { transform: scale(0.98); }
.kahoot-btn .shape {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  margin-right: .6rem;
  font-size: 1.4rem;
}
.kahoot-btn.red { background: var(--red); }
.kahoot-btn.blue { background: var(--blue); }
.kahoot-btn.yellow { background: var(--yellow); color: #1b1400; }
.kahoot-btn.green { background: var(--green); }
.kahoot-btn.dim { opacity: .35; filter: grayscale(.4); }
.kahoot-btn.correct {
  outline: 4px solid #fff;
  transform: scale(1.03);
  box-shadow: 0 0 0 6px rgba(61,220,151,.35), inset 0 -6px rgba(0,0,0,.18);
}

.timer-ring {
  --p: 100;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background:
    conic-gradient(var(--accent) calc(var(--p) * 1%), #243552 0);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
}
.timer-ring span {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--bg-2);
  display: grid;
  place-items: center;
}

.player-chip {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: #22324d;
  border-radius: 999px;
  padding: .45rem .9rem;
  margin: .25rem;
  font-weight: 800;
  animation: pop .35s ease;
}
@keyframes pop {
  from { transform: scale(.6); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.bar-row {
  display: grid;
  grid-template-columns: 2.5rem 1fr 3rem;
  gap: .6rem;
  align-items: center;
  margin: .45rem 0;
}
.bar-track {
  height: 14px;
  background: #243552;
  border-radius: 999px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  width: 0;
  transition: width .6s ease;
  border-radius: 999px;
}
.bar-fill.red { background: var(--red); }
.bar-fill.blue { background: var(--blue); }
.bar-fill.yellow { background: var(--yellow); }
.bar-fill.green { background: var(--green); }

.podium {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  align-items: end;
  min-height: 280px;
}
.podium .place {
  text-align: center;
  background: #1c2b44;
  border-radius: 18px 18px 8px 8px;
  padding: 1rem;
}
.podium .place.first { height: 240px; background: linear-gradient(180deg, #3a2f0d, #1c2b44); }
.podium .place.second { height: 190px; }
.podium .place.third { height: 150px; }
.podium .rank { font-size: 2rem; }

.hidden { display: none !important; }
.muted { color: var(--muted); }
.row { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }
.stack { display: flex; flex-direction: column; gap: 1rem; }
.grow { flex: 1; }

.flash-ok { animation: flashOk .7s ease; }
.flash-bad { animation: flashBad .7s ease; }
@keyframes flashOk {
  0%,100% { box-shadow: none; }
  40% { box-shadow: inset 0 0 0 999px rgba(61,220,151,.25); }
}
@keyframes flashBad {
  0%,100% { box-shadow: none; }
  40% { box-shadow: inset 0 0 0 999px rgba(255,93,108,.28); }
}

.dropzone {
  border: 2px dashed #3a567f;
  border-radius: 18px;
  padding: 1.5rem;
  text-align: center;
  background: rgba(18,26,43,.65);
  transition: border-color .15s ease, background .15s ease;
}
.dropzone.drag {
  border-color: var(--accent);
  background: rgba(61,214,198,.08);
}

.qr-box img {
  width: min(280px, 70vw);
  height: auto;
  background: white;
  border-radius: 16px;
  padding: 12px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #243552;
  background: rgba(11,18,32,.72);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem;
}

.tv-page {
  max-width: none;
  padding: 1.5rem 2rem 2rem;
  min-height: 100vh;
}

.play-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
.play-answers {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: .7rem;
  padding: .7rem;
}
.play-answers .kahoot-btn {
  min-height: 0;
  height: 100%;
  font-size: clamp(1.1rem, 5vw, 1.8rem);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

@media (max-width: 800px) {
  .tv-split { grid-template-columns: 1fr !important; }
  .kahoot-btn { min-height: 88px; }
}