/* ============================================
 * 观鼎山首页 · 昼夜主题 theme.css
 * 板块：主题
 * 标准：首页设计标准 v1.4 §4
 * 默认：暗色（鼎哥指定）
 * ============================================ */

/* ---------- 夜模式（默认 · 暗色神秘） ---------- */
[data-theme="dark"] {
  --bg: #0d0d1a;
  --text: #c8d0e0;
  --border: #5a6a9a;
  --palace-bg: rgba(20, 24, 50, 0.6);
  --header-bg: rgba(13, 13, 26, 0.85);
  --footer-bg: rgba(13, 13, 26, 0.9);
  --tool-btn-bg: rgba(30, 30, 51, 0.6);
  --search-bg: rgba(30, 30, 51, 0.5);
  --notice-bg: rgba(20, 24, 50, 0.5);

  /* 弹窗/卡片通用（member.css 等模块使用） */
  --gds-bg-card: #1a1a2e;
  --gds-border: rgba(212, 168, 67, 0.2);
  --gds-text: #e8e0d0;
  --gds-muted: #8892a8;
  --gds-accent: #D4A843;
  --gds-bg-input: rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] body {
  background: var(--bg);
  color: var(--text);
}

[data-theme="dark"] .gds-cell {
  background-color: var(--palace-bg);
}

/* ---------- 昼模式（备用 · 宣纸金） ---------- */
[data-theme="light"] {
  --bg: #faf6ee;
  --text: #2c2416;
  --border: #c0a86a;
  --palace-bg: rgba(255, 255, 255, 0.6);
  --header-bg: rgba(250, 246, 238, 0.9);
  --footer-bg: rgba(250, 246, 238, 0.95);
  --tool-btn-bg: rgba(255, 255, 255, 0.6);
  --search-bg: rgba(255, 255, 255, 0.5);
  --notice-bg: rgba(255, 255, 255, 0.5);

  /* 弹窗/卡片通用（member.css 等模块使用） */
  --gds-bg-card: rgba(255, 255, 255, 0.92);
  --gds-border: rgba(192, 168, 106, 0.3);
  --gds-text: #2c2416;
  --gds-muted: #5a4a3a;
  --gds-accent: #8B6914;
  --gds-bg-input: rgba(255, 255, 255, 0.6);
}

[data-theme="light"] body {
  background: var(--bg);
  color: var(--text);
}

[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse at 20% 10%, rgba(192, 168, 106, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 90%, rgba(192, 168, 106, 0.08) 0%, transparent 50%);
}

[data-theme="light"] body::after {
  display: none;
}

[data-theme="light"] .gds-cell {
  background-color: var(--palace-bg);
}

[data-theme="light"] .gds-cell-name {
  color: #1a1a1a;
  opacity: 0.95;
  text-shadow: none;
}

[data-theme="light"] .gds-cell-gua {
  text-shadow: none;
}

[data-theme="light"] .gds-center-gua {
  animation: none;
  text-shadow: 0 0 8px rgba(212, 168, 67, 0.3);
}

/* 先天数/后天数 昼夜适配（高对比度优化） */
[data-theme="dark"] .gds-cell-num:not(.gds-cell--center .gds-cell-num),
[data-theme="dark"] .gds-cell-innate {
  color: #8ab4d6;
  opacity: 0.85;
  text-shadow: 0 0 6px rgba(138, 180, 214, 0.15);
}

[data-theme="light"] .gds-cell-num,
[data-theme="light"] .gds-cell-innate {
  color: #2a3a5a;
  opacity: 0.9;
  font-weight: 500;
}

[data-theme="light"] .gds-cell--center .gds-cell-num {
  color: #8B6914;
  opacity: 0.8;
  font-weight: 500;
}

/* ---------- 主题切换动画 ---------- */
body {
  transition: background-color 0.6s ease, color 0.6s ease;
}

.gds-cell {
  transition: background-color 0.6s ease, border-color 0.6s ease, transform var(--transition), box-shadow var(--transition);
}