@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #050505;
  --panel: #0f0f0f;
  --card-bg: #161616;
  --text: #f5f5f5;
  --muted: #909090;
  --outline: #fdfdfd;
  --meter-bg: #1f1f1f;
  --meter-fill: #a0a0a0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Space Grotesk', 'IBM Plex Mono', monospace;
  background: radial-gradient(circle at top, #0d0d0d 0%, #040404 55%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.canvas {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.stats-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  padding: 1.5rem 4vw 1rem;
  background: var(--panel);
  border-bottom: 1px solid #1a1a1a;
}

.stat {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
  overflow: hidden;
}

.stat .icon {
  font-size: 1.3rem;
  color: var(--text);
}

.stat::after {
  content: '';
  position: absolute;
  inset: -30%;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  filter: blur(12px);
}

.stat.pulse-positive .icon,
.stat.pulse-positive .value {
  color: #e5ffe9;
}

.stat.pulse-positive .fill {
  background: linear-gradient(90deg, #d8ffe4 0%, #8ef5bb 100%);
}

.stat.pulse-negative .icon,
.stat.pulse-negative .value {
  color: #ffe5e5;
}

.stat.pulse-negative .fill {
  background: linear-gradient(90deg, #ffd1d1 0%, #ff7272 100%);
}

.stat.pulse-positive::after {
  background: rgba(180, 255, 210, 0.6);
  animation: pulsePositive 1s ease forwards;
}

.stat.pulse-negative::after {
  background: rgba(255, 120, 120, 0.6);
  animation: pulseNegative 1s ease forwards;
}

.meter {
  flex: 1;
  height: 0.35rem;
  background: var(--meter-bg);
  border-radius: 2rem;
  overflow: hidden;
}

.fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #f5f5f5 0%, #d0d0d0 100%);
  transition: width 0.3s ease;
}

.value {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

@keyframes pulsePositive {
  0% {
    opacity: 0;
    transform: scale(0.85);
  }
  45% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.25);
  }
}

@keyframes pulseNegative {
  0% {
    opacity: 0;
    transform: scale(0.85);
  }
  45% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.25);
  }
}

.playfield {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4vw;
}

.answer {
  flex: 1;
  max-width: 25vw;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.4;
  background: transparent;
}

.answer p {
  margin: 0;
  background: transparent;
}

.answer-left {
  text-align: right;
  padding-right: 1rem;
}

.answer-right {
  text-align: left;
  padding-left: 1rem;
}

.answer.active p {
  color: #d9d9d9;
}

.question-card {
  --dx: 0px;
  --dy: 0px;
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(460px, 70vw);
  min-height: 220px;
  padding: 2rem;
  background: var(--card-bg);
  border: 2px solid var(--outline);
  color: var(--text);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy)));
  transition: transform 0.25s ease, box-shadow 0.2s ease;
  cursor: grab;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.45);
  user-select: none;
  touch-action: none;
}

.question-card.dragging {
  transition: none;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
  cursor: grabbing;
}

#question-text {
  margin: 0;
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  line-height: 1.3;
  font-weight: 500;
}

.card-hint {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status {
  min-height: 3rem;
  padding: 1.5rem 4vw 2rem;
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

body.game-over .question-card {
  opacity: 0.3;
  pointer-events: none;
}

body.game-over .status {
  color: var(--text);
}

@media (max-width: 900px) {
  .playfield {
    gap: 2rem;
    padding: 6rem 1.5rem;
  }

  .answer {
    max-width: 40vw;
    font-size: 0.95rem;
  }

  .answer-left,
  .answer-right {
    padding: 0.5rem;
  }
}

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