/* responsive.css — Mobile-first media queries */

/* ── Base: phones (< 640px) — default styles ── */

/* Stack game containers vertically on mobile */
.game-container {
  flex-direction: column;
}

.game-area,
.side-panel {
  max-width: 100%;
}

.quiz-grid {
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: var(--space-md);
}

.card-grid {
  grid-template-columns: 1fr;
}

.assistant {
  width: 70px;
  height: 70px;
}

.fact-box {
  max-width: 250px;
  bottom: 110px;
  right: 12px;
}

/* ── Tablets (>= 640px) ── */
@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  .game-container {
    flex-direction: row;
  }

  .game-area {
    max-width: 600px;
  }

  .side-panel {
    max-width: 350px;
  }

  .quiz-grid {
    gap: var(--space-sm);
    padding: var(--space-lg);
  }

  .assistant {
    width: 90px;
    height: 90px;
  }

  .fact-box {
    max-width: 280px;
    bottom: 130px;
    right: 20px;
  }

  .option-buttons {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .option-btn {
    flex: 1 1 calc(50% - var(--space-sm));
  }
}

/* ── Desktop (>= 1024px) ── */
@media (min-width: 1024px) {
  .assistant {
    width: 100px;
    height: 100px;
  }

  .fact-box {
    max-width: 300px;
    bottom: 140px;
  }

  .page-content {
    padding: var(--space-xl) var(--space-lg);
  }
}

/* ── Short screens ── */
@media (max-height: 600px) {
  .game-area {
    height: 45vh;
    min-height: 280px;
  }

  .side-panel {
    height: 45vh;
    min-height: 280px;
  }

  .num-btn {
    width: 50px;
    height: 44px;
    font-size: var(--text-base);
  }
}

/* ── Touch-friendly adjustments ── */
@media (hover: none) and (pointer: coarse) {
  .btn {
    min-height: 48px;
  }

  .option-btn {
    min-height: 48px;
    padding: var(--space-md) var(--space-lg);
  }

  .num-btn {
    min-height: 48px;
    min-width: 48px;
  }
}