/* ================================================================
   滑块拼图 — 样式表
   按区域组织：
     1. 重置 & CSS 变量
     2. 全局基础
     3. 共享组件（按钮、徽章）
     4. 页面切换动画
     5. 开始页面（标题、难度选择、图片上传）
     6. 游戏页面（顶栏、统计卡、操作按钮、拼图面板、提示）
     7. 弹窗（胜利弹窗、原图预览弹窗、五彩纸屑画布）
     8. 关键帧动画
     9. 响应式适配
   ================================================================ */

/* ======================== 1. 重置 & CSS 变量 ======================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --board-size: min(80vw, 80vh, 480px);
  --grid: 3;
  --gap: 4px;
  --radius: 12px;
  --radius-sm: 8px;

  --bg: #f0f2f5;
  --bg-subtle: #e8ebf0;
  --card: #ffffff;
  --accent: #4f6ef7;
  --accent-hover: #3b5de7;
  --accent-light: #eef1fe;
  --accent-glow: rgba(79, 110, 247, 0.35);
  --text: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #8a94a6;
  --border: #e2e5ea;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* ======================== 2. 全局基础 ======================== */

html {
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(160deg, #f0f2f5 0%, #e4e8f0 100%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ======================== 3. 共享组件 ======================== */

/* --- 按钮 --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: var(--card);
  color: var(--text);
  box-shadow: var(--shadow-sm);
  transition: all 0.18s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  background: #f5f6f8;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0) scale(0.97);
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-primary:active {
  box-shadow: 0 1px 6px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  box-shadow: none;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--card);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.btn-large {
  padding: 0.75rem 2rem;
  font-size: 1rem;
  border-radius: var(--radius);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  color: var(--text-secondary);
}

.btn-icon:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* --- 徽章 --- */

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 99px;
  background: var(--accent-light);
  color: var(--accent);
  letter-spacing: 0.02em;
}

/* ======================== 4. 页面切换 ======================== */

.screen {
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem 1rem;
  animation: pageIn 0.4s ease;
}

.screen[hidden] { display: none; }

/* ======================== 5. 开始页面 ======================== */

.start-screen { align-items: center; }

.start-card {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  background: var(--card);
  border-radius: 20px;
  padding: 2.5rem 2rem 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.start-icon {
  font-size: 3.5rem;
  line-height: 1;
  animation: bounce 2s ease infinite;
}

.start-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.start-tagline {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: -0.25rem;
}

.start-desc {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* --- 难度选择 --- */

.difficulty-group {
  display: flex;
  gap: 0.75rem;
  width: 100%;
}

.diff-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1rem 0.5rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s, box-shadow 0.2s;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}

.diff-btn:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(79, 110, 247, 0.1);
}

.diff-btn:active { transform: scale(0.96); }

.diff-btn.selected {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 2px 12px rgba(79, 110, 247, 0.15);
}

.diff-grid {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}

.diff-btn.selected .diff-grid { color: var(--accent); }

.diff-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.diff-btn.selected .diff-label {
  color: var(--accent);
  font-weight: 600;
}

/* --- 图片选择器 --- */

.image-picker {
  width: 100%;
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 2px;
}

.image-option {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s, box-shadow 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.image-option:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(79, 110, 247, 0.1);
}

.image-option:active {
  transform: scale(0.96);
}

.image-option.selected {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 2px 12px rgba(79, 110, 247, 0.15);
}

.image-option-thumb {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-subtle);
}

.image-option-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.image-option.selected .image-option-label {
  color: var(--accent);
  font-weight: 600;
}

/* --- 图片上传区 --- */

.upload-area {
  width: 100%;
  min-height: 80px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  overflow: hidden;
  position: relative;
}

.upload-area:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 1.2rem;
}

.upload-icon {
  stroke: var(--text-muted);
  opacity: 0.6;
}

.preview-img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  display: block;
}

.preview-img[hidden] { display: none; }

.btn-start {
  width: 100%;
  margin-top: 0.25rem;
}

/* ======================== 6. 游戏页面 ======================== */

.game-screen { align-items: center; }

.container {
  width: 100%;
  max-width: 540px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

/* --- 顶栏 --- */

.top-bar {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.top-bar .title {
  flex: 1;
  font-size: 1.25rem;
  font-weight: 700;
}

/* --- 统计卡片 --- */

.stats-bar {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: var(--card);
  border-radius: var(--radius);
  padding: 0.65rem 1.2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.stat {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
}

.stat-icon {
  stroke: var(--text-muted);
  flex-shrink: 0;
}

.stat-body {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  font-weight: 600;
  line-height: 1;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  color: var(--text);
}

.stat-divider {
  width: 1px;
  height: 28px;
  background: var(--border);
  margin: 0 0.5rem;
  flex-shrink: 0;
}

/* --- 最佳记录 --- */

.best-record {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  background: var(--accent-light);
  border-radius: 99px;
  font-size: 0.78rem;
  color: var(--accent);
}

.best-record[hidden] { display: none; }

.best-icon {
  stroke: var(--accent);
  flex-shrink: 0;
  opacity: 0.7;
}

.best-label {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.68rem;
}

.best-display {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* --- 操作按钮 --- */

.action-buttons {
  display: flex;
  gap: 0.5rem;
}

.action-buttons .btn {
  font-size: 0.82rem;
  padding: 0.45rem 0.85rem;
}

.action-buttons .btn svg {
  flex-shrink: 0;
}

/* --- 拼图面板 --- */

.board {
  width: var(--board-size);
  height: var(--board-size);
  display: grid;
  grid-template-columns: repeat(var(--grid), 1fr);
  grid-template-rows: repeat(var(--grid), 1fr);
  gap: var(--gap);
  background: #c9cdd5;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    var(--shadow-lg),
    inset 0 1px 2px rgba(0, 0, 0, 0.06);
  padding: var(--gap);
}

.tile {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  border-radius: 4px;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tile:hover {
  filter: brightness(1.06);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transform: scale(1.02);
}

.tile:active {
  transform: scale(0.96);
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.1);
}

/* 空白格：凹槽感 */
.tile.blank {
  background: transparent;
  cursor: default;
  pointer-events: none;
  box-shadow:
    inset 0 2px 6px rgba(0, 0, 0, 0.12),
    inset 0 -1px 2px rgba(255, 255, 255, 0.3);
  border: 2px dashed rgba(0, 0, 0, 0.1);
  border-radius: 6px;
}

.tile.blank:hover {
  filter: none;
  transform: none;
  box-shadow:
    inset 0 2px 6px rgba(0, 0, 0, 0.12),
    inset 0 -1px 2px rgba(255, 255, 255, 0.3);
}

.tile.tile-win { animation: tileWin 0.5s ease forwards; }

/* --- 提示文字 --- */

.hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ======================== 7. 弹窗 ======================== */

/* --- 通用遮罩层 --- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  animation: fadeIn 0.3s ease;
}

.modal-overlay[hidden] { display: none; }

/* --- 通用弹窗卡片 --- */

.modal {
  background: var(--card);
  border-radius: 24px;
  padding: 2rem;
  text-align: center;
  max-width: 380px;
  width: 90%;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
  animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.modal-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.modal-buttons .btn { width: 100%; }

/* --- 胜利弹窗 --- */

.victory-header {
  margin-bottom: 1.25rem;
}

.trophy {
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 0.5rem;
  animation: trophyPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
}

.victory-header h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.victory-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.victory-new-record {
  display: inline-block;
  margin-top: 0.4rem;
  padding: 0.2rem 0.75rem;
  background: linear-gradient(135deg, #ffd166 0%, #ffb347 100%);
  color: #7c4a00;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 99px;
  animation: recordPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.4s both;
}

.victory-new-record[hidden] { display: none; }

.victory-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem 0.75rem;
  background: linear-gradient(135deg, var(--accent-light) 0%, #f8f5ff 100%);
  border-radius: var(--radius);
  border: 1px solid rgba(79, 110, 247, 0.1);
}

.v-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  flex: 1;
}

.v-stat-val {
  font-size: 1.35rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.v-stat-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.v-divider {
  width: 1px;
  height: 32px;
  background: rgba(79, 110, 247, 0.15);
}

/* --- 五彩纸屑画布 --- */

.confetti-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* --- 原图预览弹窗 --- */

.preview-modal-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.preview-full {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

/* --- 广告提示 Toast --- */

.ad-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.65rem 1.4rem;
  background: var(--text);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: 99px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  z-index: 200;
  animation: toastIn 0.3s ease;
  white-space: nowrap;
}

.ad-toast[hidden] { display: none; }

/* --- 游戏次数显示 --- */

.play-counter {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0.6rem 1rem;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
}

.play-counter-game {
  padding: 0.45rem 0.9rem;
  font-size: 0.82rem;
}

.play-recovery-info {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.play-recovery-info[hidden] { display: none; }

.play-counter.play-counter--empty {
  border-color: #f5c6cb;
  background: #fff5f5;
  color: #c0392b;
}

/* --- 次数恢复 Toast --- */

.play-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.65rem 1.4rem;
  background: #06d6a0;
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 99px;
  box-shadow: 0 4px 20px rgba(6, 214, 160, 0.35);
  z-index: 200;
  animation: toastIn 0.3s ease;
  white-space: nowrap;
}

.play-toast[hidden] { display: none; }

/* --- 分享按钮 --- */

.btn-share {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.4rem;
  padding: 0.4rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, #764ba2 100%);
  border: none;
  border-radius: 99px;
  cursor: pointer;
  box-shadow: 0 2px 10px var(--accent-glow);
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.btn-share:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
  filter: brightness(1.08);
}

.btn-share:active {
  transform: translateY(0) scale(0.96);
  box-shadow: 0 1px 6px var(--accent-glow);
}

.btn-share.btn-share--cooldown {
  background: #b0b8c9;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.7;
  filter: grayscale(0.3);
}

.btn-share.btn-share--cooldown:hover {
  transform: none;
  box-shadow: none;
  filter: grayscale(0.3);
}

.share-cooldown-text {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.share-cooldown-text[hidden] { display: none; }

/* --- 模拟微信分享弹窗 --- */

.share-modal-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.5rem 1.5rem;
}

.share-wechat-icon {
  width: 64px;
  height: 64px;
  background: #07c160;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 4px 16px rgba(7, 193, 96, 0.3);
}

.share-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.share-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* --- 按钮禁用态 --- */

.btn-play-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
  filter: grayscale(0.4);
}

/* ======================== 8. 关键帧动画 ======================== */

@keyframes pageIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scaleIn {
  from { transform: scale(0.85); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}

@keyframes trophyPop {
  from { transform: scale(0) rotate(-20deg); opacity: 0; }
  to   { transform: scale(1) rotate(0deg);   opacity: 1; }
}

@keyframes recordPop {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

@keyframes tileWin {
  0%   { transform: scale(1);    filter: brightness(1); }
  40%  { transform: scale(1.08); filter: brightness(1.2); }
  100% { transform: scale(1);    filter: brightness(1); }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ======================== 9. 响应式适配 ======================== */

@media (max-width: 480px) {
  .screen { padding: 1.25rem 0.75rem; }

  .start-card {
    padding: 2rem 1.5rem 1.5rem;
    border-radius: 16px;
  }

  .start-title  { font-size: 1.7rem; }
  .start-tagline { font-size: 0.82rem; }

  .top-bar .title { font-size: 1.1rem; }

  .stats-bar {
    padding: 0.55rem 0.8rem;
  }

  .stat-value {
    font-size: 1.2rem;
  }

  :root { --board-size: min(92vw, 92vh, 480px); }

  .image-picker {
    gap: 0.5rem;
  }

  .image-option {
    padding: 0.4rem;
  }

  .image-option-label {
    font-size: 0.68rem;
  }

  .action-buttons .btn {
    font-size: 0.78rem;
    padding: 0.4rem 0.7rem;
  }

  .victory-header h2 { font-size: 1.4rem; }
  .victory-stats { gap: 0.6rem; padding: 0.75rem 0.5rem; }
  .v-stat-val    { font-size: 1.15rem; }

  .ad-toast { font-size: 0.82rem; padding: 0.55rem 1.1rem; bottom: 1.5rem; }

  .play-counter { font-size: 0.85rem; padding: 0.5rem 0.8rem; }
  .play-counter-game { font-size: 0.78rem; padding: 0.4rem 0.7rem; }
  .play-recovery-info { font-size: 0.7rem; }
  .play-toast { font-size: 0.82rem; padding: 0.55rem 1.1rem; bottom: 1.5rem; }

  .btn-share { font-size: 0.78rem; padding: 0.35rem 0.85rem; }
  .share-cooldown-text { font-size: 0.68rem; }
  .share-modal-content { padding: 1.5rem 1.2rem 1.2rem; }
  .share-wechat-icon { width: 52px; height: 52px; font-size: 1.6rem; }
  .share-title { font-size: 1.05rem; }
  .share-desc { font-size: 0.8rem; }
}

@media (min-width: 481px) and (min-height: 700px) {
  .game-screen {
    padding-top: 3rem;
  }
}