:root {
  --bg: #0f1624;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --text: #f3f6ff;
  --accent: #6c7bff;
  --accent-2: #7cf2c3;
  --danger: #ff6b81;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(108, 123, 255, 0.2), transparent 25%),
    radial-gradient(circle at 80% 0%, rgba(124, 242, 195, 0.15), transparent 25%),
    radial-gradient(circle at 60% 80%, rgba(255, 107, 129, 0.12), transparent 25%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a {
  color: var(--accent-2);
  text-decoration: none;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.logo {
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 22px;
  color: #fff;
}

.pill {
  background: var(--panel);
  border: 1px solid var(--panel-strong);
  padding: 14px 18px;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.card-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--panel-strong);
  padding: 18px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(108, 123, 255, 0.15), rgba(124, 242, 195, 0.06));
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.card:hover::after {
  opacity: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(120deg, var(--accent), #5ad0ff);
  color: #0d1021;
  font-weight: 700;
  border: none;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(108, 123, 255, 0.4);
  transition: transform 0.16s ease, box-shadow 0.2s ease;
}

.btn.secondary {
  background: linear-gradient(120deg, var(--panel-strong), rgba(255, 255, 255, 0.14));
  color: var(--text);
  box-shadow: none;
  border: 1px solid var(--panel-strong);
}

.btn.danger {
  background: linear-gradient(120deg, #ff6b81, #ffa6a6);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.35);
}

.input {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--panel-strong);
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text);
  margin: 8px 0;
}

label {
  font-weight: 600;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: center;
  margin-top: 24px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 42px;
}

.hero p {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.8);
}

.glow {
  position: absolute;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(108, 123, 255, 0.28), transparent 60%);
  filter: blur(30px);
  z-index: 0;
}

.floating-bubble {
  background: linear-gradient(160deg, rgba(108, 123, 255, 0.5), rgba(124, 242, 195, 0.5));
  color: #0b0f1f;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  animation: floaty 6s ease-in-out infinite;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

@keyframes floaty {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-8px) rotate(2deg);
  }
  100% {
    transform: translateY(0) rotate(0deg);
  }
}

.countdown {
  font-size: 64px;
  font-weight: 800;
  text-align: center;
  animation: pop 0.6s ease;
}

@keyframes pop {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.answers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.answer {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease;
}

.answer:hover {
  transform: translateY(-2px);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
}

.answer.locked {
  outline: 2px solid var(--accent-2);
}

.timer-bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 10px;
}

.timer-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #7cf2c3, #6c7bff);
  animation: shrink linear forwards;
}

@keyframes shrink {
  from {
    width: 100%;
  }
  to {
    width: 0%;
  }
}

.leaderboard {
  margin-top: 12px;
}

.lb-row {
  display: flex;
  justify-content: space-between;
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 8px;
  background: var(--panel);
  animation: slide-in 0.3s ease;
}

@keyframes slide-in {
  from {
    transform: translateY(8px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.podium {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
  text-align: center;
}

.podium .slot {
  background: var(--panel);
  border-radius: 14px;
  padding: 16px;
  position: relative;
  box-shadow: var(--shadow);
}

.slot.gold {
  border: 2px solid #f7d046;
}
.slot.silver {
  border: 2px solid #d8d8d8;
}
.slot.bronze {
  border: 2px solid #d08c60;
}

.confetti {
  position: fixed;
  width: 8px;
  height: 16px;
  background: linear-gradient(180deg, #f7d046, #ff6b81);
  animation: fall 2.6s linear infinite;
}

@keyframes fall {
  0% {
    transform: translateY(-20vh) rotate(0);
    opacity: 1;
  }
  100% {
    transform: translateY(120vh) rotate(240deg);
    opacity: 0;
  }
}

.bubble-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.bubble {
  background: linear-gradient(140deg, rgba(108, 123, 255, 0.4), rgba(124, 242, 195, 0.32));
  border-radius: 20px;
  padding: 10px 12px;
  font-weight: 700;
  animation: drift 4s ease-in-out infinite;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

@keyframes drift {
  0% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(4px, -4px);
  }
  100% {
    transform: translate(0, 0);
  }
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--panel-strong);
  font-size: 12px;
}

.section-title {
  margin: 12px 0;
  font-size: 18px;
}

.muted {
  color: rgba(255, 255, 255, 0.65);
}