/*
 Theme Name: 图片展示主题 v7.0
 Theme URI: https://xxx.com
 Description: 专业图片展示/摄影作品集主题，极简风格，灵感来自 time.photo
 Author: 你的名字
 Author URI: https://xxx.com
 Version: 7.0
 Text Domain: blank-theme
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/

/* 基础样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* CSS变量统一管理颜色 - 极简黑白风格 */
:root {
  --primary-color: #000000;
  --primary-color-dark: #333333;
  --background-color: #ffffff;
  --text-color: #000000;
  --text-secondary: #666666;
  --link-color: #000000;
  --card-bg: #ffffff;
  --border-color: #e5e5e5;
  --hover-bg: #f5f5f5;
}

/* 深色模式 */
body.dark-mode {
  --primary-color: #ffffff;
  --primary-color-dark: #cccccc;
  --background-color: #0a0a0a;
  --text-color: #ffffff;
  --text-secondary: #999999;
  --link-color: #ffffff;
  --card-bg: #1a1a1a;
  --border-color: #2a2a2a;
  --hover-bg: #1f1f1f;
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  font-size: 16px;
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

a:hover {
  opacity: 0.7;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
}

/* 头部 - 极简居中风格 */
.site-header {
  padding: 3rem 0 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.site-branding {
  margin-bottom: 1rem;
}

.site-title {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.site-title a {
  color: var(--text-color);
}

.site-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.header-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* 导航菜单 */
.site-nav {
  display: inline-block;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: center;
}

.nav-menu li {
  display: inline-block;
}

.nav-menu a {
  color: var(--text-color);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  padding: 0.5rem 0;
  display: block;
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger span {
  width: 20px;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 1px;
  transition: all 0.3s ease;
}

/* 深色模式切换按钮 */
.dark-mode-toggle {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  background-color: transparent;
  color: var(--text-color);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  font-weight: 400;
}

.dark-mode-toggle:hover {
  background-color: var(--hover-bg);
  text-decoration: none;
}

/* 下载按钮 */
.download-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--text-color);
  border-radius: 4px;
  cursor: pointer;
  background-color: var(--text-color);
  color: var(--background-color);
  transition: all 0.2s ease;
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-block;
}

.download-btn:hover {
  opacity: 0.8;
  text-decoration: none;
}

/* 图片网格布局 - 固定网格替代瀑布流 */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.photo-card {
  display: block;
  position: relative;
  overflow: hidden;
  border-radius: 0;
  text-decoration: none;
  background-color: var(--card-bg);
  transition: transform 0.3s ease;
  aspect-ratio: 3/2;
}

.photo-card:hover {
  transform: translateY(-4px);
}

.photo-image {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--hover-bg);
}

.photo-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease, opacity 0.3s ease;
}

.photo-card:hover .photo-image img {
  transform: scale(1.05);
  opacity: 0.9;
}

.photo-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
  padding: 2rem 1.5rem 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.photo-card:hover .photo-overlay {
  opacity: 1;
}

.photo-title {
  color: #ffffff;
  font-size: 1rem;
  margin: 0;
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* 响应式 */
@media (max-width: 1200px) {
  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 992px) {
  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 2rem 0 1.5rem;
  }

  .site-title {
    font-size: 1.5rem;
  }

  .hamburger {
    display: flex;
    position: absolute;
    top: 2rem;
    right: 1rem;
  }

  .site-nav {
    display: block;
    width: 100%;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--background-color);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    gap: 2rem;
    display: none;
    z-index: 1000;
    justify-content: flex-start;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    font-size: 1.25rem;
    text-align: center;
  }

  .photo-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
  }

  .header-controls {
    flex-direction: column;
    gap: 0.75rem;
  }
}

@media (max-width: 576px) {
  .photo-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .site-title {
    font-size: 1.25rem;
  }

  .site-desc {
    font-size: 0.8rem;
  }
}

/* 汉堡按钮激活状态 */
.hamburger.active {
  position: fixed;
  top: 2rem;
  right: 1rem;
  z-index: 1001;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* 侧边栏 */
.sidebar {
  padding: 1.5rem 0;
}

.sidebar-widget {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0;
}

.widget-title {
  font-size: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* 底部 */
.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 4rem;
}

.site-footer p {
  margin: 0;
  line-height: 1.8;
}

/* 文章详情页 */
.site-main {
  padding: 3rem 0;
}

.post-single {
  max-width: 900px;
  margin: 0 auto;
}

.post-hero {
  border-radius: 0;
  overflow: hidden;
  margin-bottom: 2rem;
}

.post-hero img {
  width: 100%;
  height: auto;
  display: block;
}

.post-single h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-align: center;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.post-meta {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.post-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-color);
}

.post-content p {
  margin-bottom: 1.5rem;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0;
  margin: 2rem 0;
  display: block;
}

.post-content h2,
.post-content h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* 相关图片 */
.related-photos {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-color);
}

.related-photos h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.01em;
}

/* 分页 */
.pagination {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: baseline;
  margin: 4rem 0 2rem;
}

.pagination a,
.pagination span {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s ease;
}

.pagination a:hover {
  color: var(--text-color);
  text-decoration: none;
  opacity: 1;
}

.pagination .current {
  color: var(--text-color);
  font-weight: 500;
}

/* 面包屑导航 */
.breadcrumbs {
  padding: 1rem 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.breadcrumbs a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.breadcrumbs a:hover {
  color: var(--text-color);
  text-decoration: none;
}

/* 404页面 */
.error-page {
  text-align: center;
  padding: 6rem 0;
}

.error-page h1 {
  font-size: 5rem;
  margin-bottom: 1rem;
  color: var(--text-color);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.error-page p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* 工具类 */
.py-8 {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.text-center {
  text-align: center;
}

/* 加载动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.photo-card {
  animation: fadeIn 0.5s ease-out;
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
}

/* 选中文本样式 */
::selection {
  background-color: var(--text-color);
  color: var(--background-color);
}

/* 移除body溢出时的滚动 */
body.menu-open {
  overflow: hidden;
}

/* 评论样式 */
.comments-area {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.comment-list {
  margin: 0;
  padding: 0;
}

.comment-list li {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

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

.comment-body {
  display: flex;
  gap: 1rem;
}

.comment-author img {
  border-radius: 50%;
}

.comment-content {
  flex: 1;
}

.comment-metadata {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.comment-metadata a {
  color: var(--text-secondary);
}

.reply {
  margin-top: 0.5rem;
}

.reply a {
  font-size: 0.875rem;
  color: var(--text-color);
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  display: inline-block;
}

.reply a:hover {
  background-color: var(--hover-bg);
  text-decoration: none;
}

/* 评论表单 */
.comment-form {
  margin-top: 2rem;
}

.comment-form p {
  margin-bottom: 1rem;
}

.comment-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
}

.comment-form input[type="text"]:focus,
.comment-form input[type="email"]:focus,
.comment-form input[type="url"]:focus,
.comment-form textarea:focus {
  outline: none;
  border-color: var(--text-color);
}

.comment-form textarea {
  min-height: 120px;
  resize: vertical;
}