/* ============================================================
 * 护民官 · 视觉主题系统 (themes.css)
 * 6 套主题, 严格对应截图配色:
 *   1. 墨金 (默认) — 墨黑 + 国徽金 + 人民红
 *   2. 靛青 — 深蓝 + 天青 + 月白
 *   3. 紫宸 — 紫黑 + 紫罗兰 + 粉黛
 *   4. 琥珀 — 褐黑 + 琥珀橙 + 鎏金
 *   5. 翠竹 — 墨绿 + 翠绿 + 竹青
 *   6. 朱砂 — 赭黑 + 朱砂红 + 赤金
 * ============================================================ */

/* ============ 主题切换面板 ============ */
.theme-panel {
  position: fixed;
  top: 64px;
  right: 16px;
  z-index: 9999;
  background: var(--bg-glass);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.96);
  transform-origin: top right;
  transition: all 0.3s var(--ease-spring);
}
.theme-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.theme-panel-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule-soft);
}
.theme-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.theme-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s var(--ease-soft);
  border: 1px solid transparent;
  background: transparent;
}
.theme-item:hover {
  background: var(--bg3);
  border-color: var(--rule);
}
.theme-item.active {
  background: var(--accent-soft);
  border-color: var(--accent);
}
.theme-swatch {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(255,255,255,0.15);
}
.theme-swatch::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 6px;
}
.theme-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  flex: 1;
}
.theme-item.active .theme-name {
  color: var(--accent);
}
.theme-check {
  width: 18px;
  height: 18px;
  opacity: 0;
  color: var(--accent);
  transition: opacity 0.2s;
}
.theme-item.active .theme-check {
  opacity: 1;
}

/* 主题按钮特殊样式 */
.theme-btn {
  position: relative;
}
.theme-btn .palette-dot {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  border: 1.5px solid var(--bg);
  transition: background 0.4s;
}

/* ============ 主题 1: 墨金 (默认,无需覆盖) ============ */
/* 使用 :root 原始值 */

/* ============ 主题 2: 靛青 ============ */
/* 截图配色: #1a237e / #0d47a1 / #1565c0 + 银白 */
:root[data-theme="indigo"] {
  --bg: #060a14;
  --bg2: #0c1226;
  --bg3: #141d38;
  --bg-glass: rgba(12, 18, 38, 0.72);

  --ink: #e8f0ff;
  --ink-soft: #b0c4de;
  --muted: #6a7f9e;

  --rule: rgba(100, 181, 246, 0.15);
  --rule-soft: rgba(255, 255, 255, 0.05);

  --brand: #1565c0;
  --brand2: #42a5f5;
  --brand-deep: #0d47a1;
  --brand-soft: rgba(21, 101, 192, 0.15);

  --accent: #64b5f6;
  --accent2: #90caf9;
  --accent-deep: #1976d2;
  --accent-soft: rgba(100, 181, 246, 0.1);

  --info: #29b6f6;
  --info-soft: rgba(41, 182, 246, 0.12);

  --shadow-gold: 0 8px 32px rgba(100, 181, 246, 0.15);
  --shadow-red: 0 8px 32px rgba(21, 101, 192, 0.2);

  --grad-hero: linear-gradient(135deg, #0c1226 0%, #060a14 50%, #0a1428 100%);
  --grad-brand: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
  --grad-gold: linear-gradient(135deg, #64b5f6 0%, #1976d2 100%);
  --grad-shine: linear-gradient(110deg, transparent 30%, rgba(100, 181, 246, 0.3) 50%, transparent 70%);
}

/* ============ 主题 3: 紫宸 ============ */
/* 截图配色: #4a148c / #6a1b9a / #7b1fa2 + 粉黛 */
:root[data-theme="purple"] {
  --bg: #0a0612;
  --bg2: #160c24;
  --bg3: #221438;
  --bg-glass: rgba(22, 12, 36, 0.72);

  --ink: #f3e8ff;
  --ink-soft: #d0bcf0;
  --muted: #7e6a9e;

  --rule: rgba(206, 147, 216, 0.15);
  --rule-soft: rgba(255, 255, 255, 0.05);

  --brand: #7b1fa2;
  --brand2: #ab47bc;
  --brand-deep: #4a148c;
  --brand-soft: rgba(123, 31, 162, 0.15);

  --accent: #ce93d8;
  --accent2: #e1bee7;
  --accent-deep: #8e24aa;
  --accent-soft: rgba(206, 147, 216, 0.1);

  --info: #ba68c8;
  --info-soft: rgba(186, 104, 200, 0.12);

  --shadow-gold: 0 8px 32px rgba(206, 147, 216, 0.15);
  --shadow-red: 0 8px 32px rgba(123, 31, 162, 0.2);

  --grad-hero: linear-gradient(135deg, #160c24 0%, #0a0612 50%, #180a20 100%);
  --grad-brand: linear-gradient(135deg, #7b1fa2 0%, #4a148c 100%);
  --grad-gold: linear-gradient(135deg, #ce93d8 0%, #8e24aa 100%);
  --grad-shine: linear-gradient(110deg, transparent 30%, rgba(206, 147, 216, 0.3) 50%, transparent 70%);
}

/* ============ 主题 4: 琥珀 ============ */
/* 截图配色: #e65100 / #ef6c00 / #f57c00 + 鎏金 */
:root[data-theme="amber"] {
  --bg: #120a04;
  --bg2: #1e1208;
  --bg3: #2e1d0e;
  --bg-glass: rgba(30, 18, 8, 0.72);

  --ink: #fff5e6;
  --ink-soft: #e0c8a0;
  --muted: #8a7050;

  --rule: rgba(255, 183, 77, 0.15);
  --rule-soft: rgba(255, 255, 255, 0.05);

  --brand: #ef6c00;
  --brand2: #ff9800;
  --brand-deep: #e65100;
  --brand-soft: rgba(239, 108, 0, 0.15);

  --accent: #ffb74d;
  --accent2: #ffcc80;
  --accent-deep: #f57c00;
  --accent-soft: rgba(255, 183, 77, 0.1);

  --info: #ffa726;
  --info-soft: rgba(255, 167, 38, 0.12);

  --shadow-gold: 0 8px 32px rgba(255, 183, 77, 0.15);
  --shadow-red: 0 8px 32px rgba(239, 108, 0, 0.2);

  --grad-hero: linear-gradient(135deg, #1e1208 0%, #120a04 50%, #1a0e06 100%);
  --grad-brand: linear-gradient(135deg, #ef6c00 0%, #e65100 100%);
  --grad-gold: linear-gradient(135deg, #ffb74d 0%, #f57c00 100%);
  --grad-shine: linear-gradient(110deg, transparent 30%, rgba(255, 183, 77, 0.3) 50%, transparent 70%);
}

/* ============ 主题 5: 翠竹 ============ */
/* 截图配色: #1b5e20 / #2e7d32 / #388e3c + 竹青 */
:root[data-theme="jade"] {
  --bg: #04120a;
  --bg2: #082014;
  --bg3: #0e2e1c;
  --bg-glass: rgba(8, 32, 20, 0.72);

  --ink: #e8f5e9;
  --ink-soft: #a5d6a7;
  --muted: #5a8060;

  --rule: rgba(129, 199, 132, 0.15);
  --rule-soft: rgba(255, 255, 255, 0.05);

  --brand: #2e7d32;
  --brand2: #43a047;
  --brand-deep: #1b5e20;
  --brand-soft: rgba(46, 125, 50, 0.15);

  --accent: #81c784;
  --accent2: #a5d6a7;
  --accent-deep: #388e3c;
  --accent-soft: rgba(129, 199, 132, 0.1);

  --info: #4db6ac;
  --info-soft: rgba(77, 182, 172, 0.12);

  --shadow-gold: 0 8px 32px rgba(129, 199, 132, 0.15);
  --shadow-red: 0 8px 32px rgba(46, 125, 50, 0.2);

  --grad-hero: linear-gradient(135deg, #082014 0%, #04120a 50%, #061810 100%);
  --grad-brand: linear-gradient(135deg, #2e7d32 0%, #1b5e20 100%);
  --grad-gold: linear-gradient(135deg, #81c784 0%, #388e3c 100%);
  --grad-shine: linear-gradient(110deg, transparent 30%, rgba(129, 199, 132, 0.3) 50%, transparent 70%);
}

/* ============ 主题 6: 朱砂 ============ */
/* 截图配色: #bf360c / #d84315 / #e64a19 + 赤金 */
:root[data-theme="vermillion"] {
  --bg: #140604;
  --bg2: #220c08;
  --bg3: #321610;
  --bg-glass: rgba(34, 12, 8, 0.72);

  --ink: #fff0e8;
  --ink-soft: #e0a890;
  --muted: #8a5a48;

  --rule: rgba(255, 138, 101, 0.15);
  --rule-soft: rgba(255, 255, 255, 0.05);

  --brand: #d84315;
  --brand2: #ff5722;
  --brand-deep: #bf360c;
  --brand-soft: rgba(216, 67, 21, 0.15);

  --accent: #ff8a65;
  --accent2: #ffab91;
  --accent-deep: #e64a19;
  --accent-soft: rgba(255, 138, 101, 0.1);

  --info: #ff7043;
  --info-soft: rgba(255, 112, 67, 0.12);

  --shadow-gold: 0 8px 32px rgba(255, 138, 101, 0.15);
  --shadow-red: 0 8px 32px rgba(216, 67, 21, 0.2);

  --grad-hero: linear-gradient(135deg, #220c08 0%, #140604 50%, #1a0806 100%);
  --grad-brand: linear-gradient(135deg, #d84315 0%, #bf360c 100%);
  --grad-gold: linear-gradient(135deg, #ff8a65 0%, #e64a19 100%);
  --grad-shine: linear-gradient(110deg, transparent 30%, rgba(255, 138, 101, 0.3) 50%, transparent 70%);
}

/* ============ 主题切换过渡动画 ============ */
html {
  transition: background-color 0.5s var(--ease-soft);
}
body, .topbar, .hero, .modal, .modal-bg, .icon-btn, .theme-panel {
  transition: background-color 0.5s var(--ease-soft),
              border-color 0.5s var(--ease-soft),
              color 0.5s var(--ease-soft);
}

/* ============ 移动端适配 ============ */
@media (max-width: 480px) {
  .theme-panel {
    right: 8px;
    min-width: 200px;
    padding: 12px;
  }
  .theme-item {
    padding: 8px 10px;
  }
  .theme-name {
    font-size: 13px;
  }
}