/* ===== 端午小游戏 · 共享样式 ===== */

/* --- CSS 自定义属性（主题色）--- */
:root {
  --color-primary: #e85d3a;       /* 粽叶红 */
  --color-secondary: #2d8a4e;     /* 粽叶绿 */
  --color-accent: #f5c542;        /* 蛋黄金 */
  --color-bg-start: #0f0c1a;      /* 深紫黑 */
  --color-bg-end: #1a1228;        /* 深紫 */
  --color-card-bg: rgba(255, 255, 255, 0.06);
  --color-card-border: rgba(255, 255, 255, 0.1);
  --color-text: #e8e0f0;
  --color-text-dim: #a090b8;
  --color-text-bright: #ffffff;
  --radius: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.25s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(145deg, var(--color-bg-start), var(--color-bg-end));
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 20px;
}

/* --- 渐变标题 --- */
.gradient-title {
  font-size: 2.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  margin-bottom: 8px;
}

.subtitle {
  text-align: center;
  color: var(--color-text-dim);
  font-size: 1rem;
  margin-bottom: 32px;
}

/* --- 导航栏 --- */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 800px;
  margin: 0 auto 24px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-card-border);
}

.top-nav a {
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.top-nav a:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: 16px;
}

/* --- 卡片网格 --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text);
  display: block;
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 12px 36px rgba(232, 93, 58, 0.2);
  border-color: var(--color-primary);
}

.card:active {
  transform: scale(0.97);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

/* --- 通用按钮 --- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border: none;
  border-radius: 40px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #c9442a);
  color: #fff;
  box-shadow: 0 4px 16px rgba(232, 93, 58, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(232, 93, 58, 0.5);
}

.btn-primary:active {
  transform: scale(0.95);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text);
  border: 1px solid var(--color-card-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-2px);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* --- 游戏容器 --- */
.game-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(8px);
}

/* --- 分数 / 状态栏 --- */
.score-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
}

.score-bar .score-value {
  color: var(--color-accent);
}

/* --- 返回首页链接 --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 16px;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-accent);
}

/* --- 响应式 --- */
@media (max-width: 600px) {
  body { padding: 12px; }
  .gradient-title { font-size: 1.8rem; }
  .card-grid { grid-template-columns: 1fr; }
  .game-container { padding: 16px; }
  .top-nav { flex-direction: column; gap: 8px; }
}