/* ============================================
   sober 主题增强：多套强调色配色方案 + 站内搜索面板
   （恢复渐变前版本：只切换强调色，背景保持纯色）
   ============================================ */

/* ---------- 多套强调色配色方案（通过 html[data-color] 切换） ---------- */

/* 默认：清爽蓝（与 main.css 一致） */
html[data-color="blue"] {
  --accent: #3b82f6;
  --accent-2: #0ea5e9;
  --accent-soft: rgba(59, 130, 246, 0.08);
  --gradient: linear-gradient(135deg, #3b82f6, #0ea5e9);
}
html[data-color="blue"][data-theme="dark"] {
  --accent: #60a5fa;
  --accent-2: #22d3ee;
  --accent-soft: rgba(96, 165, 250, 0.12);
  --gradient: linear-gradient(135deg, #60a5fa, #22d3ee);
}

/* 青绿 */
html[data-color="teal"] {
  --accent: #0d9488;
  --accent-2: #14b8a6;
  --accent-soft: rgba(13, 148, 136, 0.08);
  --gradient: linear-gradient(135deg, #0d9488, #14b8a6);
}
html[data-color="teal"][data-theme="dark"] {
  --accent: #2dd4bf;
  --accent-2: #5eead4;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --gradient: linear-gradient(135deg, #2dd4bf, #5eead4);
}

/* 暖橙 */
html[data-color="orange"] {
  --accent: #ea580c;
  --accent-2: #f59e0b;
  --accent-soft: rgba(234, 88, 12, 0.08);
  --gradient: linear-gradient(135deg, #ea580c, #f59e0b);
}
html[data-color="orange"][data-theme="dark"] {
  --accent: #fb923c;
  --accent-2: #fbbf24;
  --accent-soft: rgba(251, 146, 60, 0.12);
  --gradient: linear-gradient(135deg, #fb923c, #fbbf24);
}

/* 紫罗兰 */
html[data-color="violet"] {
  --accent: #7c3aed;
  --accent-2: #a78bfa;
  --accent-soft: rgba(124, 58, 237, 0.08);
  --gradient: linear-gradient(135deg, #7c3aed, #a78bfa);
}
html[data-color="violet"][data-theme="dark"] {
  --accent: #a78bfa;
  --accent-2: #c4b5fd;
  --accent-soft: rgba(167, 139, 250, 0.12);
  --gradient: linear-gradient(135deg, #a78bfa, #c4b5fd);
}

/* 玫红 */
html[data-color="rose"] {
  --accent: #e11d48;
  --accent-2: #fb7185;
  --accent-soft: rgba(225, 29, 72, 0.08);
  --gradient: linear-gradient(135deg, #e11d48, #fb7185);
}
html[data-color="rose"][data-theme="dark"] {
  --accent: #fb7185;
  --accent-2: #fda4af;
  --accent-soft: rgba(251, 113, 133, 0.12);
  --gradient: linear-gradient(135deg, #fb7185, #fda4af);
}

/* ---------- 搜索与配色切换按钮（header 操作区） ---------- */
.search-toggle,
.color-toggle {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: transform 0.3s ease, background 0.2s, border-color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.search-toggle:hover,
.color-toggle:hover {
  transform: rotate(15deg);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- 搜索面板 ---------- */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30, 30, 50, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s;
  z-index: 400;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 16px 0;
}
.search-overlay.show { opacity: 1; visibility: visible; }

.search-panel {
  width: 100%;
  max-width: 640px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(-12px);
  transition: transform 0.3s ease;
}
.search-overlay.show .search-panel { transform: translateY(0); }

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.search-input-wrap .search-icon { font-size: 18px; flex-shrink: 0; }
.search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
}
.search-input::placeholder { color: var(--muted); }
.search-close {
  border: none;
  background: var(--code-bg);
  color: var(--muted);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
}
.search-close:hover { background: var(--accent-soft); color: var(--accent); }

.search-results {
  max-height: 55vh;
  overflow-y: auto;
  padding: 8px 0;
}
.search-results::-webkit-scrollbar { width: 5px; }
.search-results::-webkit-scrollbar-thumb { background: var(--muted); border-radius: 4px; }

.search-empty {
  padding: 24px 18px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.search-item {
  display: block;
  padding: 12px 18px;
  border-bottom: 1px dashed var(--border);
  transition: background 0.2s;
}
.search-item:last-child { border-bottom: none; }
.search-item:hover { background: var(--accent-soft); opacity: 1; }

.search-item-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.search-item-title:hover { color: var(--accent); }

.search-item-meta {
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.search-item-excerpt {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-item mark {
  background: rgba(245, 158, 11, 0.35);
  color: inherit;
  border-radius: 3px;
  padding: 0 2px;
}

/* ---------- 配色选择面板 ---------- */
.color-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30, 30, 50, 0.2);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s;
  z-index: 380;
}
.color-overlay.show { opacity: 1; visibility: visible; }

.color-pop {
  position: fixed;
  top: 60px;
  right: 70px;
  z-index: 390;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}
.color-pop.show { opacity: 1; visibility: visible; transform: translateY(0); }

.color-pop-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.color-options {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.color-option {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  position: relative;
}
.color-option:hover { transform: scale(1.15); box-shadow: var(--shadow); }
.color-option.active { border-color: var(--text); }
.color-option.active::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* 手机端配色面板居中 */
@media (max-width: 640px) {
  .color-pop {
    right: 16px;
    left: 16px;
    top: 64px;
    margin: 0 auto;
    width: auto;
  }
  .color-options { grid-template-columns: repeat(5, 1fr); }
  .search-toggle, .color-toggle { width: 34px; height: 34px; font-size: 15px; }
}