/* ========================================
   铅笔的生活小记 - 主样式文件
   ======================================== */

/* CSS 变量 */
:root {
  --color-primary: #5d4e37;
  --color-secondary: #8b7355;
  --color-accent: #c4936a;
  --color-bg: #faf8f5;
  --color-card: #ffffff;
  --color-text: #3d3d3d;
  --color-text-light: #666666;
  --color-muted: #a0937d;
  --color-border: #eee;
  --color-tag-bg: #faf0e6;
  --color-highlight: #fcb69f;
  --shadow-sm: 0 2px 8px rgba(93, 78, 55, 0.06);
  --shadow-md: 0 6px 20px rgba(93, 78, 55, 0.08);
  --radius: 12px;
  --max-width: 1100px;
  --sidebar-width: 280px;
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

/* ========================================
   导航栏
   ======================================== */
nav {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

nav .links {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav .links a {
  color: var(--color-secondary);
  font-size: 15px;
  position: relative;
}

nav .links a:hover {
  color: var(--color-primary);
}

nav .links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

/* 搜索框 */
.search-box {
  position: relative;
  margin-left: 16px;
}

.search-box input {
  width: 200px;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 14px;
  background: var(--color-bg);
  transition: all 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-accent);
  width: 260px;
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
}

/* ========================================
   主布局
   ======================================== */
.main-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  gap: 32px;
}

.main-content {
  flex: 1;
  min-width: 0;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}

/* ========================================
   头部 Hero
   ======================================== */
.hero {
  text-align: center;
  padding: 48px 0 40px;
  background: linear-gradient(135deg, #fff9f0 0%, #fff 100%);
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.hero h1 {
  font-size: 36px;
  color: var(--color-primary);
  margin-bottom: 8px;
  font-weight: 700;
}

.hero p {
  font-size: 16px;
  color: var(--color-muted);
}

.hero .date {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-muted);
  font-style: italic;
}

/* ========================================
   日记卡片
   ======================================== */
.diary-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 20px;
  border-left: 4px solid var(--color-highlight);
  transition: box-shadow 0.3s, transform 0.2s;
  cursor: pointer;
}

.diary-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.diary-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.diary-card .date {
  font-size: 13px;
  color: #b8a898;
}

.diary-card .tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.diary-card .tag {
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 12px;
  background: var(--color-tag-bg);
  color: var(--color-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.diary-card .tag:hover {
  background: var(--color-accent);
  color: #fff;
}

.diary-card h2 {
  font-size: 20px;
  color: var(--color-primary);
  margin-bottom: 10px;
  font-weight: 600;
}

.diary-card .content {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.diary-card .read-more {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--color-accent);
}

.diary-card .read-more:hover {
  color: var(--color-primary);
}

/* ========================================
   月份分隔
   ======================================== */
.month-divider {
  display: flex;
  align-items: center;
  margin: 36px 0 20px;
}

.month-divider::before,
.month-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #e8e0d6;
}

.month-divider span {
  padding: 0 16px;
  font-size: 14px;
  color: #b8a898;
  font-weight: 500;
}

/* ========================================
   侧边栏
   ======================================== */
.sidebar-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
}

/* 关于我 */
.about-me .avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-highlight), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 16px;
}

.about-me .name {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.about-me .bio {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud .tag {
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 16px;
  background: var(--color-tag-bg);
  color: var(--color-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.tag-cloud .tag:hover,
.tag-cloud .tag.active {
  background: var(--color-accent);
  color: #fff;
}

/* 最新日记 */
.recent-list {
  list-style: none;
}

.recent-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
}

.recent-list li:last-child {
  border-bottom: none;
}

.recent-list a {
  display: block;
  font-size: 14px;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-list a:hover {
  color: var(--color-accent);
}

.recent-list .date {
  font-size: 12px;
  color: #b8a898;
  margin-top: 4px;
}

/* 统计 */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stats .stat-item {
  text-align: center;
  padding: 12px;
  background: var(--color-bg);
  border-radius: 8px;
}

.stats .stat-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
}

.stats .stat-label {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 4px;
}

/* ========================================
   分类筛选
   ======================================== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.filter-bar label {
  font-size: 14px;
  color: var(--color-muted);
}

.filter-bar select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--color-bg);
  cursor: pointer;
}

.filter-bar select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ========================================
   分页
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-card);
  transition: all 0.2s;
}

.pagination a:hover {
  background: var(--color-tag-bg);
}

.pagination .active {
  background: var(--color-accent);
  color: #fff;
}

/* ========================================
   详情页
   ======================================== */
.article-header {
  text-align: center;
  padding: 48px 0 32px;
}

.article-header h1 {
  font-size: 32px;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.article-header .meta {
  font-size: 14px;
  color: var(--color-muted);
}

.article-header .meta span {
  margin: 0 8px;
}

.article-content {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 40px;
  font-size: 16px;
  line-height: 2;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-content img {
  max-width: 100%;
  border-radius: 8px;
  margin: 20px 0;
}

.article-footer {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.article-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ========================================
   归档页
   ======================================== */
.archive-year {
  font-size: 24px;
  color: var(--color-primary);
  margin: 32px 0 16px;
  font-weight: 600;
}

.archive-month {
  margin-left: 24px;
}

.archive-month h4 {
  font-size: 16px;
  color: var(--color-secondary);
  margin: 20px 0 12px;
}

.archive-list {
  list-style: none;
  margin-left: 16px;
}

.archive-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.archive-list .date {
  font-size: 13px;
  color: #b8a898;
  min-width: 80px;
}

.archive-list a {
  font-size: 15px;
  color: var(--color-text);
}

.archive-list a:hover {
  color: var(--color-accent);
}

/* ========================================
   底部
   ======================================== */
footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--color-muted);
  font-size: 13px;
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
}

footer a {
  color: var(--color-muted);
}

footer a:hover {
  color: var(--color-accent);
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 900px) {
  .sidebar {
    display: none;
  }

  .main-layout {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  nav .inner {
    flex-wrap: wrap;
    gap: 12px;
  }

  .search-box {
    margin-left: 0;
    width: 100%;
    order: 3;
  }

  .search-box input {
    width: 100%;
  }

  .search-box input:focus {
    width: 100%;
  }

  .hero h1 {
    font-size: 28px;
  }

  .diary-card {
    padding: 20px;
  }

  .article-content {
    padding: 24px;
  }

  .article-header h1 {
    font-size: 24px;
  }
}

/* ========================================
   动画
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.diary-card {
  animation: fadeIn 0.4s ease;
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--color-muted);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-muted);
}

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 16px;
}