/**
 * =============================================================================
 *  Resume — 样式表
 * =============================================================================
 *
 *  文件结构：
 *    1. Reset & CSS 变量 (默认值)
 *    2. @media print — 打印样式（隐藏UI、多页分页、sidebar转顶部）
 *    3. @media screen — 屏幕端基础布局
 *    4. Editable — contenteditable 交互样式
 *    5. Grid Layout — 双栏布局
 *    6. Typography — 标题、段落、字体
 *    7. Sidebar — 侧边栏（联系方式、技能、教育）
 *    8. Sidebar Custom Sections — 动态自定义栏目
 *    9. Main Content — 主内容区
 *   10. Section Cards — 经历/项目卡片
 *   11. Bullet Lists — 要点列表
 *   12. Add Buttons — 添加按钮
 *   13. Toolbar — 顶部工具栏
 *   14. DESIGN THEMES — 12 套版式布局（.page.theme-xxx）
 *   15. Responsive — 移动端适配
 *
 *  颜色不在本文件中硬编码；全部通过 CSS 变量控制，由 app.js 动态注入。
 *  设计主题通过 .page 上的 CSS class 切换（如 .page.theme-timeline）。
 * =============================================================================
 */

/* ===== Reset & Variables ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink: #1a1a1a;
  --ink-muted: #555;
  --accent: #1e5fa8;
  --accent-light: #e8f0fa;
  --border: #ddd;
  --bg: #fff;
  --surface: #f8f9fa;
  --radius: 6px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", "Fira Code", "SF Mono", "Monaco", monospace;
}

/* ===== Print ===== */
@media print {
  @page { size: A4; margin: 0; }
  body {
    background: #fff;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .page {
    box-shadow: none;
    margin: 0 auto;
    padding: 36px 44px;
    max-width: 210mm;
    /* No min-height — natural multi-page flow */
  }
  .section-card { break-inside: avoid; page-break-inside: avoid; }
  h2 { break-after: avoid; page-break-after: avoid; }
  /* Keep heading with the first card that follows */
  section > h2 + * { break-before: avoid; }
  .no-print { display: none !important; }
  [contenteditable]:focus { outline: none; }
  [contenteditable]:empty::before { display: none; }

  /* Collapse sidebar into compact header on page 1; page 2+ is full-width main */
  .resume-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 20px;
    align-items: flex-start;
    padding-bottom: 14px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--accent);
  }
  .sidebar .name-section {
    flex-basis: 100%;
    margin-bottom: 4px;
  }
  .sidebar .name-section h1 { font-size: 22px; display: flex; gap: 12px; align-items: baseline; }
  .sidebar .name-section h1 .sub { margin-top: 0; }
  .sidebar section {
    margin-bottom: 0;
    min-width: 120px;
  }
  .sidebar h2 {
    border-bottom: none;
    margin-bottom: 2px;
    padding-bottom: 0;
    font-size: 11px;
  }
  .sidebar .info-item { margin-bottom: 1px; }
  .skill-tags { gap: 3px; }
  .skill-tag { font-size: 10px; padding: 1px 5px; }
  .editable-block h3 { font-size: 12px; }
  .sidebar .section-sub { font-size: 11px; }
  .sidebar .date { font-size: 11px; }

  /* Sidebar custom sections in print */
  .sidebar-custom-section { min-width: 100px; }
  .sidebar-custom-section h2 { font-size: 11px; margin-bottom: 2px; }
  .sidebar-custom-section .sidebar-custom-content { font-size: 11px; }

  /* Main content full width */
  .main { width: 100%; }
}

/* ===== Screen ===== */
@media screen {
  body {
    background: var(--body-bg, #e8ecf1);
    font-family: var(--font-sans);
    color: var(--ink);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .page {
    background: var(--bg);
    width: 210mm;
    min-height: 297mm;
    padding: 36px 44px;
    box-shadow: 0 2px 20px rgba(0,0,0,.12);
    position: relative;
  }
}

/* ===== Editable ===== */
[contenteditable] {
  outline: none;
  border-radius: 3px;
  transition: background .15s;
  cursor: text;
}
[contenteditable]:hover {
  background: rgba(30,95,168,.04);
}
[contenteditable]:focus {
  background: rgba(30,95,168,.08);
  box-shadow: 0 0 0 1.5px var(--accent);
  border-radius: 3px;
}
[contenteditable]:empty::before {
  content: attr(data-placeholder);
  color: #bbb;
  font-style: italic;
}

/* ===== Layout ===== */
.resume-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 36px;
}

/* ===== Typography ===== */
h1 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.2;
  margin-bottom: 4px;
}
h1 .sub {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-muted);
  margin-top: 4px;
  letter-spacing: 0;
}
h2 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 5px;
  border-bottom: 2px solid var(--accent);
}
h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}
h3 .meta {
  font-weight: 400;
  color: var(--ink-muted);
  font-size: 12px;
}

/* ===== Sidebar ===== */
.sidebar section {
  margin-bottom: 22px;
}
.sidebar h2 {
  border-bottom-color: var(--border);
  color: var(--ink);
  font-size: 12px;
}
.name-section {
  margin-bottom: 18px;
}
.info-item {
  font-size: 12px;
  margin-bottom: 5px;
  display: flex;
  gap: 5px;
}
.info-label {
  color: var(--ink-muted);
  flex-shrink: 0;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.skill-tag {
  font-size: 11px;
  background: var(--accent-light);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 500;
  position: relative;
  cursor: text;
}
.skill-tag .tag-delete {
  display: none;
  position: absolute;
  top: -6px;
  right: -6px;
  width: 16px;
  height: 16px;
  background: #e74c3c;
  color: #fff;
  border-radius: 50%;
  font-size: 10px;
  line-height: 16px;
  text-align: center;
  cursor: pointer;
  border: none;
}
.skill-tag:hover .tag-delete {
  display: block;
}

/* ===== Sidebar custom sections ===== */
.sidebar-custom-section {
  margin-bottom: 16px;
  position: relative;
  padding: 8px;
  border: 1px dashed transparent;
  border-radius: var(--radius);
  transition: border-color .15s;
}
.sidebar-custom-section:hover {
  border-color: var(--border);
}
.sidebar-custom-section .sidebar-custom-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--ink);
  margin-bottom: 4px;
  padding-bottom: 4px;
  border-bottom: 1.5px solid var(--border);
  min-width: 2em;
}
.sidebar-custom-section .sidebar-custom-content {
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.5;
  min-height: 1em;
}
.sidebar-custom-section .card-delete {
  display: none;
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: #e74c3c;
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 10px;
  line-height: 18px;
  text-align: center;
  cursor: pointer;
  opacity: .7;
}
.sidebar-custom-section:hover .card-delete {
  display: block;
}

/* ===== Main ===== */
.main section {
  margin-bottom: 24px;
}

/* Section card (experience, project) */
.section-card {
  position: relative;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}
.section-card:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.section-card .card-delete {
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  width: 22px;
  height: 22px;
  background: #e74c3c;
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 12px;
  line-height: 22px;
  text-align: center;
  cursor: pointer;
  opacity: .7;
  transition: opacity .15s;
}
.section-card:hover .card-delete {
  display: block;
}
.section-card .card-delete:hover {
  opacity: 1;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2px;
}
.section-header .date {
  font-size: 12px;
  color: var(--ink-muted);
  white-space: nowrap;
  margin-left: 10px;
}
.section-sub {
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

/* Bullet list */
ul.bullets {
  list-style: none;
  padding: 0;
}
ul.bullets li {
  font-size: 13px;
  margin-bottom: 3px;
  padding-left: 14px;
  position: relative;
}
ul.bullets li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

p {
  font-size: 13px;
  margin-bottom: 4px;
}

.date {
  font-size: 12px;
  color: var(--ink-muted);
}

/* ===== Add Button ===== */
.add-btn-group {
  margin-top: 8px;
}
.add-btn {
  font-size: 12px;
  padding: 4px 12px;
  border: 1px dashed var(--accent);
  background: transparent;
  color: var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all .15s;
}
.add-btn:hover {
  background: var(--accent-light);
  border-style: solid;
}

/* ===== Toolbar ===== */
.toolbar {
  position: fixed;
  top: 14px;
  right: 14px;
  display: flex;
  gap: 8px;
  z-index: 100;
}
.btn {
  font-size: 12px;
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  transition: all .15s;
  font-family: var(--font-sans);
}
.btn-print {
  background: var(--accent);
  color: #fff;
}
.btn-print:hover { background: #164a85; }
.btn-xml {
  background: #fff;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-xml:hover { background: var(--accent-light); }
.theme-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
}
.btn-theme {
  background: transparent;
  color: var(--ink-muted);
  border: 1px solid var(--border);
  padding: 5px 8px;
  font-size: 11px;
  min-width: auto;
}
.btn-theme:hover { background: var(--surface); color: var(--ink); }
.theme-label {
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  min-width: 48px;
  text-align: center;
  user-select: none;
}
.btn-reset {
  background: #fff;
  color: var(--ink-muted);
  border: 1px solid var(--border);
}
.btn-reset:hover { background: var(--surface); }
.edit-hint {
  position: fixed;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  background: rgba(0,0,0,.7);
  color: #fff;
  padding: 5px 16px;
  border-radius: 20px;
  z-index: 100;
  pointer-events: none;
}

/* ===== Editable block ===== */
.editable-block {
  position: relative;
}

/* ===== Summary ===== */
.summary-text {
  min-height: 1.6em;
}

/* ===== Bullet list item controls ===== */
.bullet-li {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  margin-bottom: 3px;
}
.bullet-li .li-delete {
  display: none;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  background: #e74c3c;
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 10px;
  line-height: 16px;
  text-align: center;
  cursor: pointer;
  opacity: .7;
  margin-top: 2px;
}
.bullet-li:hover .li-delete {
  display: block;
}

/* ===== Responsive ===== */
@media screen and (max-width: 800px) {
  .page { width: 100%; padding: 20px 16px; }
  .resume-grid { grid-template-columns: 1fr; gap: 20px; }
  .sidebar { position: static; }
  .toolbar { top: 6px; right: 6px; }
  .btn { padding: 5px 10px; font-size: 11px; }
}

/* ============================================================
   DESIGN THEMES — 12 layout presets
   Applied via .page.theme-xxx
   ============================================================ */

/* 1. Classic — default, no overrides needed */

/* 2. Minimal — single column, sidebar as compact top header */
.page.theme-minimal .resume-grid {
  grid-template-columns: 1fr;
  gap: 24px;
}
.page.theme-minimal .sidebar {
  position: static;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
  align-items: flex-start;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--border);
}
.page.theme-minimal .sidebar .name-section { flex-basis: 100%; margin-bottom: 2px; }
.page.theme-minimal .sidebar .name-section h1 { font-size: 24px; }
.page.theme-minimal .sidebar section { margin-bottom: 0; min-width: 100px; }
.page.theme-minimal .sidebar h2 {
  border-bottom: none; margin-bottom: 2px; padding-bottom: 0; font-size: 11px;
}

/* 3. Right bar — sidebar on the right */
.page.theme-rightbar .resume-grid {
  grid-template-columns: 1fr 180px;
}
.page.theme-rightbar .sidebar { order: 2; }

/* 4. Top bar — sidebar as full-width header, single column body */
.page.theme-topbar .resume-grid {
  grid-template-columns: 1fr;
  gap: 0;
}
.page.theme-topbar .sidebar {
  position: static;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
  align-items: flex-start;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 2px solid var(--accent);
}
.page.theme-topbar .sidebar .name-section { flex-basis: 100%; margin-bottom: 4px; }
.page.theme-topbar .sidebar .name-section h1 { font-size: 24px; }
.page.theme-topbar .sidebar section { margin-bottom: 0; min-width: 100px; }
.page.theme-topbar .sidebar h2 {
  border-bottom: none; margin-bottom: 2px; padding-bottom: 0; font-size: 11px;
}

/* 5. Accent bar — thick accent left border on sidebar */
.page.theme-accentbar .sidebar {
  border-left: 4px solid var(--accent);
  padding-left: 14px;
}

/* 6. Wide side — 240px sidebar */
.page.theme-wideside .resume-grid {
  grid-template-columns: 240px 1fr;
}

/* 7. Compact — tighter spacing everywhere */
.page.theme-compact .resume-grid { gap: 20px; }
.page.theme-compact .sidebar section { margin-bottom: 14px; }
.page.theme-compact .main section { margin-bottom: 16px; }
.page.theme-compact .section-card { margin-bottom: 8px; padding-bottom: 8px; }
.page.theme-compact h1 { font-size: 22px; }
.page.theme-compact h2 { font-size: 12px; margin-bottom: 6px; padding-bottom: 3px; }
.page.theme-compact h3 { font-size: 12px; }
.page.theme-compact ul.bullets li { font-size: 11px; margin-bottom: 1px; }
.page.theme-compact p { font-size: 11px; }
.page.theme-compact .page { padding: 28px 32px; }

/* 8. Cards — sections wrapped in card containers */
.page.theme-cards .main section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.page.theme-cards .main section h2 {
  margin-top: -4px;
}

/* 9. Timeline — left-positioned date markers on experiences/projects */
.page.theme-timeline .section-card {
  padding-left: 80px;
  position: relative;
}
.page.theme-timeline .section-card .date {
  position: absolute;
  left: 0;
  top: 0;
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}
.page.theme-timeline .section-card::before {
  content: '';
  position: absolute;
  left: 68px;
  top: 4px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.page.theme-timeline .section-header .date { display: none; }

/* 10. Duotone — sidebar has a subtle background colour */
.page.theme-duotone .sidebar {
  background: var(--surface);
  margin: -16px;
  padding: 16px;
  border-radius: var(--radius);
}
.page.theme-duotone .resume-grid { gap: 28px; }

/* 11. Lines — bold horizontal rules between sections, no card borders */
.page.theme-lines .main section {
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--accent);
}
.page.theme-lines .main section:last-child { border-bottom: none; }
.page.theme-lines .section-card {
  border-bottom: 1px solid var(--border);
}
.page.theme-lines .section-card:last-child { border-bottom: none; }
.page.theme-lines .sidebar section {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.page.theme-lines .sidebar section:last-child { border-bottom: none; }

/* 12. Frameless — no borders, no backgrounds, pure whitespace */
.page.theme-frameless .sidebar h2 { border-bottom: none; padding-bottom: 0; }
.page.theme-frameless .main section h2 { border-bottom: none; padding-bottom: 0; }
.page.theme-frameless .section-card { border-bottom: none; padding-bottom: 10px; margin-bottom: 10px; }
.page.theme-frameless .sidebar-custom-section { border: none; }
.page.theme-frameless .sidebar-custom-section .sidebar-custom-title { border-bottom: none; }
.page.theme-frameless .add-btn { border-style: solid; opacity: .5; }