/* ============================================================
   更新日志时间线页面样式
   使用 CSS 自定义属性，适配暗色/亮色双主题
   ============================================================ */

/* ── 侧边栏标题（覆盖 common.css 的 sidebar-title，用小号字体） ── */
.sidebar-card-header {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary, #ffffff);
  margin-bottom: 0.9rem;
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--accent-18, rgba(135,206,235,0.18));
  letter-spacing: 0.03em;
}

.sidebar-card-header i {
  font-size: 1rem;
  color: var(--accent, #87CEEB);
}

/* ── 技术栈列表 ── */
.sidebar-tech-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-tech-list li {
  margin: 0;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.55rem;
  border-radius: 8px;
  color: var(--text-secondary, #a0aab4);
  text-decoration: none;
  font-size: 0.82rem;
  transition: all 0.25s ease;
  cursor: pointer;
}

a.tech-item:hover {
  background: var(--accent-08, rgba(135,206,235,0.08));
  color: var(--text-primary, #ffffff);
  transform: translateX(3px);
}

.tech-item i {
  font-size: 1.15rem;
  flex-shrink: 0;
  width: 22px;
  text-align: center;
  transition: transform 0.25s ease;
}

a.tech-item:hover i {
  transform: scale(1.15);
}

.tech-item i[class*="devicon-"] {
  font-size: 1.2rem;
}

.tech-item .tech-name {
  line-height: 1.3;
}

/* 名称+副标题包装器：上下堆叠 */
.tech-item .tech-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.tech-item .tech-sub {
  font-size: 0.68rem;
  color: var(--text-muted, #8892a4);
  font-weight: 400;
  line-height: 1.3;
}

a.tech-item:hover .tech-sub {
  color: var(--text-secondary, #a0aab4);
}

/* 三图标并排 */
.tech-group-icons {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.tech-group-icons i {
  font-size: 1.1rem;
}

.tech-item-static,
.tech-item-group {
  cursor: default;
  color: var(--text-secondary, #a0aab4);
  transition: all 0.25s ease;
}

.tech-item-static:hover,
.tech-item-group:hover {
  background: var(--accent-08, rgba(135,206,235,0.08));
  color: var(--text-primary, #ffffff);
}

.tech-item-static:hover i,
.tech-item-group:hover i {
  transform: scale(1.15);
}

.devicon-github-original {
  filter: brightness(0) invert(1);
}

[data-theme="light"] .devicon-github-original {
  filter: none;
}

/* ── 窄屏时技术栈列表变为网格 ── */
@media (max-width: 991px) {
  .sidebar-tech-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 4px;
  }

  .tech-item .tech-sub {
    display: none;
  }
}

/* ── 中央内容区 ── */
.changelog-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

/* ── 全宽标题区 ── */
.changelog-header-full {
  text-align: center;
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding-top: 1rem;
}

.changelog-header-full .icon {
  font-size: 2.8rem;
  display: block;
  margin-bottom: 0.5rem;
}

.changelog-header-full h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary, #ffffff);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

.changelog-header-full .subtitle {
  font-size: 0.95rem;
  color: var(--text-muted, #8892a4);
  font-weight: 400;
}

[data-theme="light"] .changelog-header-full .subtitle {
  color: #5a6270;
}

/* 标题分隔线 — 居中渐变细线 */
.changelog-header-divider {
  width: 60%;
  margin: 1.8rem auto 3rem;
  border: none;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--accent-25, rgba(135,206,235,0.25)) 20%,
    var(--accent-45, rgba(135,206,235,0.45)) 50%,
    var(--accent-25, rgba(135,206,235,0.25)) 80%,
    transparent 100%
  );
  opacity: 0.8;
}

/* Maven 依赖区上方分割线 */
.changelog-section-divider {
  width: 100%;
  margin: 2.5rem 0 1.25rem;
  border: none;
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--accent-08, rgba(135,206,235,0.08)) 0%,
    var(--accent-20, rgba(135,206,235,0.20)) 50%,
    var(--accent-08, rgba(135,206,235,0.08)) 100%
  );
}

/* ── 月份折叠面板 ── */
.timeline-month {
  margin-bottom: 1.25rem;
}

/* 月份标题按钮 — 玻璃态卡片 */
.month-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.9rem 1.25rem;
  background: var(--glass-05, rgba(255,255,255,0.05));
  border: 1px solid var(--glass-10, rgba(255,255,255,0.10));
  border-radius: 12px;
  color: var(--text-primary, #ffffff);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: left;
  user-select: none;
}

.month-header:hover {
  background: var(--glass-10, rgba(255,255,255,0.10));
  border-color: var(--accent-20, rgba(135,206,235,0.20));
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.month-header .month-label {
  flex: 1;
}

.month-header .entry-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  border-radius: 12px;
  background: var(--accent-20, rgba(135,206,235,0.20));
  color: var(--accent, #87CEEB);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1;
}

.month-header .arrow {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
  color: var(--text-muted, #8892a4);
}

/* 展开时箭头旋转 */
.timeline-month.open .month-header .arrow {
  transform: rotate(180deg);
}

/* ── 展开内容区（CSS transition 动画） ── */
.month-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.35s ease,
              margin 0.35s ease;
  opacity: 0;
  margin-top: 0;
}

.timeline-month.open .month-body {
  max-height: 3000px; /* 足够容纳最长月份的内容 */
  opacity: 1;
  margin-top: 1rem;
}

/* ── 时间线布局 ── */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

/* 时间线竖线 */
.timeline::before {
  content: '';
  position: absolute;
  left: 0.85rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--accent-30, rgba(135,206,235,0.30)) 0%,
    var(--accent-10, rgba(135,206,235,0.10)) 100%
  );
  border-radius: 1px;
}

/* ── 时间线条目 ── */
.timeline-entry {
  position: relative;
  margin-bottom: 1.5rem;
  padding-left: 1.8rem;
}

.timeline-entry:last-child {
  margin-bottom: 0.25rem;
}

/* 时间线节点（圆点） */
.timeline-entry::before {
  content: '';
  position: absolute;
  left: -1.72rem;
  top: 0.65rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent, #87CEEB);
  border: 2px solid var(--bg-primary, #0d1117);
  box-shadow: 0 0 8px var(--accent-30, rgba(135,206,235,0.30));
  z-index: 1;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.timeline-entry:hover::before {
  transform: scale(1.3);
  box-shadow: 0 0 14px var(--accent-50, rgba(135,206,235,0.50));
}

/* 日期标签 */
.timeline-entry .entry-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent, #87CEEB);
  margin-bottom: 0.3rem;
  letter-spacing: 0.03em;
}

/* 内容卡片 */
.timeline-entry .entry-card {
  background: var(--glass-05, rgba(255,255,255,0.05));
  border: 1px solid var(--glass-10, rgba(255,255,255,0.10));
  border-radius: 10px;
  padding: 1rem 1.2rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: all 0.25s ease;
}

.timeline-entry .entry-card:hover {
  background: var(--glass-08, rgba(255,255,255,0.08));
  border-color: var(--accent-15, rgba(135,206,235,0.15));
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,0,0,0.18);
}

/* 条目标题 */
.timeline-entry .entry-title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary, #ffffff);
  margin: 0 0 0.4rem;
  line-height: 1.4;
}

/* 条目描述 */
.timeline-entry .entry-desc {
  font-size: 0.85rem;
  color: var(--text-secondary, #a0aab4);
  line-height: 1.65;
  margin: 0 0 0.6rem;
}

[data-theme="light"] .timeline-entry .entry-desc {
  color: #5a6270;
}

[data-theme="light"] .tech-item {
  color: #5a6270;
}

[data-theme="light"] .tech-item-static,
[data-theme="light"] .tech-item-group {
  color: #5a6270;
}

.timeline-entry .entry-desc:empty {
  display: none;
}

/* ── 分类标签徽章 ── */
.entry-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.category-badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 10px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* 各分类颜色 */
.category-badge.feature {
  background: rgba(135, 206, 235, 0.18);
  color: #87CEEB;
  border: 1px solid rgba(135, 206, 235, 0.25);
}

.category-badge.enhance {
  background: rgba(107, 217, 160, 0.18);
  color: #6bd9a0;
  border: 1px solid rgba(107, 217, 160, 0.25);
}

.category-badge.fix {
  background: rgba(255, 165, 100, 0.18);
  color: #ffa564;
  border: 1px solid rgba(255, 165, 100, 0.25);
}

.category-badge.chore {
  background: rgba(160, 170, 180, 0.15);
  color: #a0aab4;
  border: 1px solid rgba(160, 170, 180, 0.20);
}

/* ── 亮色主题适配 ── */
[data-theme="light"] .category-badge.feature {
  background: rgba(74, 155, 181, 0.15);
  color: #2d7a95;
  border-color: rgba(74, 155, 181, 0.25);
}

[data-theme="light"] .category-badge.enhance {
  background: rgba(45, 150, 100, 0.12);
  color: #2d7a50;
  border-color: rgba(45, 150, 100, 0.25);
}

[data-theme="light"] .category-badge.fix {
  background: rgba(200, 100, 50, 0.12);
  color: #b85530;
  border-color: rgba(200, 100, 50, 0.25);
}

[data-theme="light"] .category-badge.chore {
  background: rgba(120, 130, 140, 0.10);
  color: #687078;
  border-color: rgba(120, 130, 140, 0.20);
}

[data-theme="light"] .timeline-entry::before {
  border-color: #f5f6fa;
}

[data-theme="light"] .timeline::before {
  background: linear-gradient(
    180deg,
    var(--accent-30, rgba(74,155,181,0.30)) 0%,
    var(--accent-10, rgba(74,155,181,0.10)) 100%
  );
}

[data-theme="light"] .timeline-entry .entry-date {
  color: var(--accent, #4a9bb5);
}

[data-theme="light"] .month-header .entry-count {
  background: var(--accent-20, rgba(74,155,181,0.20));
  color: var(--accent, #4a9bb5);
}

[data-theme="light"] .changelog-header-divider {
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--accent-25, rgba(74,155,181,0.25)) 20%,
    var(--accent-45, rgba(74,155,181,0.45)) 50%,
    var(--accent-25, rgba(74,155,181,0.25)) 80%,
    transparent 100%
  );
}

[data-theme="light"] .changelog-section-divider {
  background: linear-gradient(
    90deg,
    var(--accent-08, rgba(74,155,181,0.08)) 0%,
    var(--accent-20, rgba(74,155,181,0.20)) 50%,
    var(--accent-08, rgba(74,155,181,0.08)) 100%
  );
}

[data-theme="light"] .changelog-footer {
  border-top-color: var(--glass-08, rgba(0,0,0,0.08));
}

[data-theme="light"] .changelog-footer .ai-badge {
  background: var(--glass-05, rgba(0,0,0,0.04));
  border-color: var(--glass-10, rgba(0,0,0,0.08));
}

/* ── Maven 依赖表格 ── */
.deps-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0;
}

.deps-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  line-height: 1.5;
}

.deps-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

.deps-table th {
  text-align: left;
  padding: 0.65rem 0.8rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted, #8892a4);
  background: var(--glass-08, rgba(255,255,255,0.08));
  border-bottom: 2px solid var(--accent-18, rgba(135,206,235,0.18));
  white-space: nowrap;
}

.deps-table td {
  padding: 0.55rem 0.8rem;
  color: var(--text-secondary, #a0aab4);
  border-bottom: 1px solid var(--glass-06, rgba(255,255,255,0.06));
  vertical-align: middle;
}

.deps-table tbody tr {
  transition: background 0.2s ease;
}

.deps-table tbody tr:hover {
  background: var(--glass-05, rgba(255,255,255,0.05));
}

.deps-table tbody tr:hover td {
  color: var(--text-primary, #ffffff);
}

.deps-table code {
  color: var(--accent, #87CEEB);
  font-size: 0.78rem;
  background: transparent;
  padding: 0;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
}

.deps-table tbody tr:hover code {
  color: var(--accent, #87CEEB);
  filter: brightness(1.2);
}

/* 版本号 */
.dep-ver {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  color: var(--text-secondary, #a0aab4);
  background: var(--glass-05, rgba(255,255,255,0.05));
  border: 1px solid var(--glass-08, rgba(255,255,255,0.08));
  white-space: nowrap;
}

/* Scope 标签 */
.scope-tag {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 10px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.scope-compile {
  background: rgba(135, 206, 235, 0.15);
  color: #87CEEB;
  border: 1px solid rgba(135, 206, 235, 0.25);
}

.scope-runtime {
  background: rgba(255, 165, 100, 0.13);
  color: #ffa564;
  border: 1px solid rgba(255, 165, 100, 0.22);
}

.scope-test {
  background: rgba(160, 170, 180, 0.12);
  color: #a0aab4;
  border: 1px solid rgba(160, 170, 180, 0.18);
}

.scope-provided {
  background: rgba(107, 217, 160, 0.13);
  color: #6bd9a0;
  border: 1px solid rgba(107, 217, 160, 0.22);
}

/* ── 亮色模式：暗底表格，与亮色背景形成对比 ── */
[data-theme="light"] .deps-table th {
  color: #ccc;
  background: rgba(30,35,50,0.85);
  border-bottom-color: rgba(135,206,235,0.2);
}

[data-theme="light"] .deps-table td {
  color: #bbb;
  border-bottom-color: rgba(255,255,255,0.06);
}

[data-theme="light"] .deps-table tbody tr {
  background: rgba(20,24,38,0.6);
}

[data-theme="light"] .deps-table tbody tr:hover {
  background: rgba(30,35,50,0.85);
}

[data-theme="light"] .deps-table tbody tr:hover td {
  color: #fff;
}

[data-theme="light"] .dep-ver {
  color: #bbb;
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}

[data-theme="light"] .scope-compile {
  background: rgba(42,130,155,0.12);
  color: #2a7a95;
  border-color: rgba(42,130,155,0.22);
}

[data-theme="light"] .scope-runtime {
  background: rgba(180,100,20,0.10);
  color: #b06a20;
  border-color: rgba(180,100,20,0.20);
}

[data-theme="light"] .scope-test {
  background: rgba(100,110,120,0.10);
  color: #687078;
  border-color: rgba(100,110,120,0.16);
}

[data-theme="light"] .scope-provided {
  background: rgba(40,130,80,0.10);
  color: #2d7a50;
  border-color: rgba(40,130,80,0.20);
}

/* ── 依赖表格响应式 ── */
@media (max-width: 768px) {
  .deps-table {
    font-size: 0.76rem;
  }

  .deps-table th,
  .deps-table td {
    padding: 0.45rem 0.5rem;
  }

  .deps-table th:nth-child(4),
  .deps-table td:nth-child(4) {
    display: none;
  }
}

@media (max-width: 480px) {
  .deps-table th:nth-child(2),
  .deps-table td:nth-child(2) {
    display: none;
  }
}

/* ── 页脚标注 ── */
.changelog-footer {
  text-align: center;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-08, rgba(255,255,255,0.08));
  font-size: 0.82rem;
  color: var(--text-muted, #8892a4);
}

.changelog-footer .ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  background: var(--glass-05, rgba(255,255,255,0.05));
  border: 1px solid var(--glass-10, rgba(255,255,255,0.10));
  font-size: 0.78rem;
  color: var(--text-muted, #8892a4);
}

/* ── 响应式 ── */
@media (max-width: 768px) {
  .changelog-container {
    padding: 1.5rem 0.75rem 3rem;
  }

  .changelog-header h1 {
    font-size: 1.5rem;
  }

  .changelog-header .icon {
    font-size: 2.2rem;
  }

  .timeline {
    padding-left: 2rem;
  }

  .timeline::before {
    left: 0.6rem;
  }

  .timeline-entry {
    padding-left: 1.3rem;
  }

  .timeline-entry::before {
    left: -1.47rem;
    width: 8px;
    height: 8px;
  }

  .timeline-entry .entry-card {
    padding: 0.75rem 0.9rem;
  }

  .month-header {
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .timeline {
    padding-left: 1.6rem;
  }

  .timeline::before {
    left: 0.45rem;
  }

  .timeline-entry {
    padding-left: 1rem;
  }

  .timeline-entry::before {
    left: -1.22rem;
    width: 7px;
    height: 7px;
    top: 0.55rem;
  }
}