/* ═══════════════════════════════════════
   BASE.CSS - CSS 变量、Reset、字体引入
   ═══════════════════════════════════════ */

/* 字体引入 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;600&family=Noto+Sans+SC:wght@200;300;400&display=swap');

/* CSS 变量体系 */
:root {
  /* 颜色 */
  --bg:         #f7f5f0;
  --ink:        #1a1a18;
  --ink-mid:    #6b6960;
  --ink-faint:  #b8b5ae;
  --ink-ghost:  #dedad4;
  --rule:       #e8e5de;

  /* 字体 */
  --font-ui:    'Noto Sans SC', sans-serif;
  --font-body:  'Noto Sans SC', sans-serif;
  --font-title: 'Noto Serif SC', serif;

  /* 阅读排版（独立变量，不与 UI 层混用） */
  --read-size:      19px;
  --read-line:      1.85;
  --read-para:      1.2em;
  --read-px:        24px;
  --read-tracking:  0.01em;

  /* 封面风格变量 */
  --cover-bg:      #faf8f3;
  --cover-border:  #e8e5de;
  --cover-spine:   #dedad4;
}

/* 暗色模式 */
[data-theme="dark"] {
  --bg:        #141412;
  --ink:       #e8e5de;
  --ink-mid:   #8a8880;
  --ink-faint: #5a5855;
  --ink-ghost: #2e2c2a;
  --rule:      #252320;
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--ink);
  margin: 0;
  position: fixed;
  inset: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding-top: max(10px, env(safe-area-inset-top));
  transition: background 0.5s ease, color 0.5s ease;
}

/* 滚动条隐藏 */
::-webkit-scrollbar {
  display: none;
}
* {
  scrollbar-width: none;
}

/* ─── 调试日志面板 ─── */
#debug-panel {
  display: none;
  position: fixed;
  right: 8px;
  bottom: 60px;
  width: 340px;
  max-height: 260px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
  z-index: 99999;
  font-family: 'Menlo', 'Consolas', monospace;
  font-size: 11px;
  color: var(--ink);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
#debug-panel.active { display: flex; flex-direction: column; }
#debug-panel.minimized { max-height: 28px; }
#debug-panel.minimized #debug-log-list { display: none; }

#debug-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 10px;
  border-bottom: 1px solid var(--rule);
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  user-select: none;
}

#debug-log-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
  scrollbar-width: thin;
}
#debug-log-list::-webkit-scrollbar { display: block; width: 4px; }
#debug-log-list::-webkit-scrollbar-thumb { background: var(--ink-faint); border-radius: 2px; }

.debug-entry {
  padding: 2px 10px;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-mid);
}
.debug-entry.debug-error { color: #d63031; }
.debug-entry.debug-warn  { color: #e17055; }
.debug-entry.debug-info  { color: var(--ink-mid); }

/* ─── 重复导入确认弹窗 ─── */
#dup-import-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: 900;
  display: none;
  align-items: center;
  justify-content: center;
}
#dup-import-overlay.open { display: flex; }
.dup-import-popup {
  background: var(--bg);
  border-radius: 14px;
  padding: 24px;
  width: 280px;
  max-width: 90vw;
}
.dup-import-title {
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.dup-import-msg {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--ink-mid);
  line-height: 1.6;
  margin-bottom: 20px;
}
.dup-import-btns {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.dup-import-btns button {
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--ink-faint);
  padding: 5px 14px;
  border: 1px solid var(--rule);
  border-radius: 20px;
  cursor: pointer;
  background: transparent;
  font-family: var(--font-ui);
  transition: all 0.18s;
}
.dup-import-btns button:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.dup-import-confirm-btn {
  color: var(--ink) !important;
  border-color: var(--ink) !important;
}