/* ============================================
   shared/style.css — 食品安全小游戏 通用样式
   暗色科技风 · 响应式 · 微动效
   ============================================ */

/* --- CSS 自定义属性（主题色） --- */
:root {
  --color-bg: #0b0e1a;
  --color-bg-card: #13172b;
  --color-bg-card-hover: #1a1f3a;
  --color-primary: #00e5a0;
  --color-primary-glow: rgba(0, 229, 160, 0.25);
  --color-accent: #00bcd4;
  --color-danger: #ff4757;
  --color-warning: #ffa502;
  --color-safe: #2ed573;
  --color-text: #e0e0e0;
  --color-text-dim: #8890a8;
  --color-border: rgba(0, 229, 160, 0.15);
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 全局重置 --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: linear-gradient(145deg, var(--color-bg) 0%, #11162e 100%);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 20px;
}

/* --- 链接 --- */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary);
}

/* --- 导航栏 --- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 20px;
  background: rgba(19, 23, 43, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 28px;
}
.navbar .logo {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-dim);
  transition: all var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-primary-glow);
}

/* --- 卡片 --- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0, 229, 160, 0.15);
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-stack);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  outline: none;
}
.btn:active {
  transform: scale(0.96);
}
.btn-primary {
  background: linear-gradient(135deg, #ff6b35, #e85d26);
  color: #fff;
}
.btn-primary:hover {
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
}
.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), #e84040);
  color: #fff;
}
.btn-danger:hover {
  box-shadow: 0 0 20px rgba(255, 71, 87, 0.3);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-glow);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* --- 渐变标题 --- */
.gradient-title {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

/* --- 网格布局 --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

/* --- 徽章 / 标签 --- */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-safe {
  background: rgba(46, 213, 115, 0.2);
  color: var(--color-safe);
  border: 1px solid rgba(46, 213, 115, 0.3);
}
.badge-danger {
  background: rgba(255, 71, 87, 0.2);
  color: var(--color-danger);
  border: 1px solid rgba(255, 71, 87, 0.3);
}
.badge-warning {
  background: rgba(255, 165, 2, 0.2);
  color: var(--color-warning);
  border: 1px solid rgba(255, 165, 2, 0.3);
}

/* --- 发光边框（用于安全/危险高亮） --- */
.glow-safe {
  box-shadow: 0 0 16px rgba(46, 213, 115, 0.25);
}
.glow-danger {
  box-shadow: 0 0 16px rgba(255, 71, 87, 0.25);
}

/* --- 倒计时 --- */
.timer-bar {
  width: 100%;
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  margin-bottom: 16px;
  overflow: hidden;
}
.timer-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 4px;
  transition: width 0.3s linear;
  width: 100%;
}
.timer-fill.danger {
  background: linear-gradient(90deg, var(--color-danger), #ff6b6b);
}
.timer-text {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-bottom: 8px;
}
.timer-text strong {
  font-size: 1.1rem;
  color: var(--color-primary);
}
.timer-text.danger strong {
  color: var(--color-danger);
}

/* --- 得分飞出动画（数字从卡片飞向计分板） --- */
.score-fly {
  position: fixed;
  pointer-events: none;
  font-size: 2rem;
  font-weight: 800;
  z-index: 999;
  animation: flyUp 0.9s ease-out forwards;
}
@keyframes flyUp {
  0% { opacity: 1; transform: translateY(0) scale(1); }
  60% { opacity: 1; transform: translateY(-60px) scale(1.4); }
  100% { opacity: 0; transform: translateY(-100px) scale(0.8); }
}

/* --- 星星飘落（答对庆祝） --- */
.star {
  position: fixed;
  pointer-events: none;
  font-size: 1.5rem;
  z-index: 998;
  animation: starFall 1.2s ease-out forwards;
}
@keyframes starFall {
  0% { opacity: 1; transform: translateY(0) rotate(0deg) scale(1); }
  100% { opacity: 0; transform: translateY(120px) rotate(360deg) scale(0.3); }
}

/* --- 连击横幅 --- */
.combo-banner {
  position: fixed;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  background: linear-gradient(135deg, #ffa502, #ff6348);
  color: #fff;
  padding: 16px 32px;
  border-radius: var(--radius);
  font-size: 1.4rem;
  font-weight: 800;
  z-index: 1000;
  box-shadow: 0 0 40px rgba(255, 165, 2, 0.5);
  pointer-events: none;
  animation: comboIn 1.5s ease-out forwards;
}
@keyframes comboIn {
  0% { transform: translate(-50%, -50%) scale(0); opacity: 0; }
  20% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
  40% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  100% { transform: translate(-50%, -60%) scale(1); opacity: 0; }
}

/* --- 结果汇总弹窗 --- */
.result-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: fadeIn 0.3s ease;
}
.result-modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 480px;
  width: 92%;
  max-height: 80vh;
  overflow-y: auto;
}
.result-modal h2 {
  font-size: 1.4rem;
  margin-bottom: 16px;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.result-stats {
  display: flex;
  justify-content: space-around;
  margin-bottom: 20px;
  text-align: center;
}
.result-stat-item {
  display: flex;
  flex-direction: column;
}
.result-stat-item .num {
  font-size: 1.8rem;
  font-weight: 800;
}
.result-stat-item .label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}
.result-stat-item .num.good { color: var(--color-safe); }
.result-stat-item .num.bad { color: var(--color-danger); }
.result-stat-item .num.primary { color: var(--color-primary); }
.result-wrong-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.result-wrong-list li {
  padding: 10px 12px;
  margin-bottom: 8px;
  background: rgba(255,71,87,0.08);
  border-left: 3px solid var(--color-danger);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}
.result-wrong-list li .food-name {
  font-weight: 600;
  color: var(--color-text);
}
.result-wrong-list li .food-reason {
  color: var(--color-text-dim);
  font-size: 0.8rem;
  margin-top: 4px;
}
.result-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.result-actions .btn {
  flex: 1;
  min-width: 120px;
}

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

/* --- 得分进度条 --- */
.score-progress-wrap {
  margin-bottom: 20px;
}
.score-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-bottom: 6px;
}
.score-progress-bar {
  width: 100%;
  height: 10px;
  background: rgba(255,255,255,0.08);
  border-radius: 5px;
  overflow: hidden;
}
.score-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 5px;
  transition: width 0.5s ease;
}

/* --- 等级徽章 --- */
.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 700;
  background: linear-gradient(135deg, rgba(255,165,2,0.2), rgba(255,71,87,0.2));
  border: 1px solid var(--color-warning);
  color: var(--color-warning);
  margin-bottom: 12px;
}
.level-badge .level-star {
  font-size: 1.1rem;
}

/* --- 提示按钮（反馈区域里） --- */
.hint-box {
  margin-top: 12px;
  padding: 12px;
  background: rgba(0,188,212,0.1);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text-dim);
  display: none;
}
.hint-box.show {
  display: block;
}

/* --- 音效开关 --- */
.sound-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 500;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
}
.sound-toggle:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
}
.sound-toggle.muted {
  opacity: 0.5;
}

/* --- 分享弹窗 --- */
.share-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.share-modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 360px;
  width: 90%;
  text-align: center;
}
.share-modal h2 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--color-primary);
}
.share-modal p {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.share-modal .btn {
  width: 100%;
  margin-bottom: 8px;
}
.share-modal .btn:last-child {
  margin-bottom: 0;
}

/* --- 响应式 --- */
@media (max-width: 600px) {
  body {
    padding: 12px;
  }
  .navbar {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .nav-links {
    justify-content: center;
  }
  .gradient-title {
    font-size: 1.5rem;
  }
  .card {
    padding: 16px;
  }
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}