/*
Theme Name:   河馬創作工作室
Theme URI:    https://homaclass.com
Description:  Astra 子主題，專為 homaclass.com 打造。搜尋導向、文章優先、行動端優化。整合全站搜索、分類文章網格、浮動目錄、優化排版。
Author:       河馬創作工作室
Author URI:   https://homaclass.com
Template:     astra
Version:      1.0.0
License:      GPL-2.0+
Text Domain:  homaclass
*/

/* ============================================
   1. 全域排版優化
   ============================================ */

:root {
  --homaclass-primary: #2563eb;
  --homaclass-primary-light: #dbeafe;
  --homaclass-accent: #f59e0b;
  --homaclass-text: #1e293b;
  --homaclass-text-light: #64748b;
  --homaclass-bg: #f8fafc;
  --homaclass-card: #ffffff;
  --homaclass-border: #e2e8f0;
  --homaclass-radius: 8px;
  --homaclass-shadow: 0 1px 3px rgba(0,0,0,0.08);
  --homaclass-shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

body {
  font-family: "Noto Sans TC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--homaclass-text);
  background: var(--homaclass-bg);
  line-height: 1.8;
}

/* 連結 */
a {
  color: var(--homaclass-primary);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: #1d4ed8;
}

/* ============================================
   2. 搜尋框（Header 區）
   ============================================ */

.homaclass-header-search {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.homaclass-header-search form {
  display: flex;
  align-items: center;
  background: var(--homaclass-card);
  border: 1px solid var(--homaclass-border);
  border-radius: 24px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.homaclass-header-search form:focus-within {
  border-color: var(--homaclass-primary);
  box-shadow: 0 0 0 3px var(--homaclass-primary-light);
}

.homaclass-header-search input[type="search"] {
  border: none;
  padding: 8px 16px;
  font-size: 14px;
  min-width: 200px;
  outline: none;
  background: transparent;
  color: var(--homaclass-text);
}

.homaclass-header-search button {
  background: var(--homaclass-primary);
  color: #fff;
  border: none;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s;
  white-space: nowrap;
}

.homaclass-header-search button:hover {
  background: #1d4ed8;
}

/* ============================================
   3. 首頁文章網格
   ============================================ */

.homaclass-home-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}

@media (max-width: 768px) {
  .homaclass-home-grid {
    grid-template-columns: 1fr;
  }
}

.homaclass-post-card {
  background: var(--homaclass-card);
  border-radius: var(--homaclass-radius);
  box-shadow: var(--homaclass-shadow);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.homaclass-post-card:hover {
  box-shadow: var(--homaclass-shadow-lg);
  transform: translateY(-2px);
}

.homaclass-post-card .card-image {
  width: 100%;
  height: 180px;
  background: var(--homaclass-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.homaclass-post-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.homaclass-post-card .card-image .no-image {
  color: var(--homaclass-primary);
  font-size: 40px;
}

.homaclass-post-card .card-body {
  padding: 16px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.homaclass-post-card .card-category {
  font-size: 12px;
  font-weight: 600;
  color: var(--homaclass-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.homaclass-post-card .card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  flex: 1;
}

.homaclass-post-card .card-title a {
  color: var(--homaclass-text);
}

.homaclass-post-card .card-title a:hover {
  color: var(--homaclass-primary);
}

.homaclass-post-card .card-meta {
  font-size: 12px;
  color: var(--homaclass-text-light);
  display: flex;
  justify-content: space-between;
}

/* ============================================
   4. 文章內頁優化
   ============================================ */

/* 文章內容區 */
.single-post .entry-content {
  font-size: 17px;
  line-height: 1.85;
  max-width: 760px;
  margin: 0 auto;
}

.single-post .entry-content h2 {
  font-size: 26px;
  font-weight: 800;
  margin: 48px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--homaclass-border);
  color: var(--homaclass-text);
}

.single-post .entry-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 14px;
  color: var(--homaclass-text);
}

.single-post .entry-content p {
  margin-bottom: 20px;
}

.single-post .entry-content blockquote {
  border-left: 4px solid var(--homaclass-primary);
  background: var(--homaclass-primary-light);
  padding: 20px 24px;
  margin: 28px 0;
  border-radius: 0 var(--homaclass-radius) var(--homaclass-radius) 0;
  font-size: 17px;
  color: var(--homaclass-text);
}

/* ============================================
   5. 浮動目錄 (Table of Contents)
   ============================================ */

.homaclass-toc {
  background: var(--homaclass-card);
  border: 1px solid var(--homaclass-border);
  border-radius: var(--homaclass-radius);
  padding: 20px 24px;
  margin-bottom: 32px;
  box-shadow: var(--homaclass-shadow);
}

.homaclass-toc .toc-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--homaclass-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.homaclass-toc .toc-title::before {
  content: "📑";
  font-size: 18px;
}

.homaclass-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: toc;
}

.homaclass-toc ol li {
  counter-increment: toc;
  padding: 6px 0;
  border-bottom: 1px solid var(--homaclass-border);
}

.homaclass-toc ol li:last-child {
  border-bottom: none;
}

.homaclass-toc ol li a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--homaclass-text-light);
  font-size: 14px;
  transition: color 0.2s;
}

.homaclass-toc ol li a::before {
  content: counter(toc);
  background: var(--homaclass-primary-light);
  color: var(--homaclass-primary);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.homaclass-toc ol li a:hover {
  color: var(--homaclass-primary);
}

/* ============================================
   6. 相關文章
   ============================================ */

.homaclass-related {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 2px solid var(--homaclass-border);
}

.homaclass-related h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--homaclass-text);
}

.homaclass-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 768px) {
  .homaclass-related-grid {
    grid-template-columns: 1fr;
  }
}

.homaclass-related-item {
  background: var(--homaclass-card);
  border-radius: var(--homaclass-radius);
  box-shadow: var(--homaclass-shadow);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.homaclass-related-item:hover {
  box-shadow: var(--homaclass-shadow-lg);
}

.homaclass-related-item .related-image {
  height: 140px;
  background: var(--homaclass-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--homaclass-primary);
  font-size: 32px;
}

.homaclass-related-item .related-body {
  padding: 14px 16px;
}

.homaclass-related-item .related-body h4 {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
}

.homaclass-related-item .related-body h4 a {
  color: var(--homaclass-text);
}

.homaclass-related-item .related-body h4 a:hover {
  color: var(--homaclass-primary);
}

/* ============================================
   7. 分類存檔頁
   ============================================ */

.homaclass-category-header {
  background: var(--homaclass-card);
  border: 1px solid var(--homaclass-border);
  border-radius: var(--homaclass-radius);
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: var(--homaclass-shadow);
}

.homaclass-category-header .category-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--homaclass-text);
}

.homaclass-category-header .category-description {
  font-size: 16px;
  color: var(--homaclass-text-light);
  line-height: 1.7;
}

/* ============================================
   8. 麵包屑導航
   ============================================ */

.homaclass-breadcrumbs {
  font-size: 13px;
  color: var(--homaclass-text-light);
  padding: 12px 0;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--homaclass-border);
}

.homaclass-breadcrumbs a {
  color: var(--homaclass-text-light);
}

.homaclass-breadcrumbs a:hover {
  color: var(--homaclass-primary);
}

.homaclass-breadcrumbs .separator {
  margin: 0 8px;
}

/* ============================================
   9. 頁尾
   ============================================ */

.site-footer {
  background: #1e293b;
  color: #94a3b8;
  padding: 48px 0 24px;
}

.site-footer a {
  color: #cbd5e1;
}

.site-footer a:hover {
  color: #fff;
}

.site-footer .footer-widgets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 768px) {
  .site-footer .footer-widgets {
    grid-template-columns: repeat(2, 1fr);
  }
}

.site-footer .footer-bottom {
  text-align: center;
  padding: 24px;
  border-top: 1px solid #334155;
  margin-top: 32px;
  font-size: 13px;
}

/* ============================================
   10. 響應式調整
   ============================================ */

@media (max-width: 768px) {
  .homaclass-header-search input[type="search"] {
    min-width: 120px;
    font-size: 13px;
  }
  
  .single-post .entry-content {
    font-size: 16px;
  }
  
  .single-post .entry-content h2 {
    font-size: 22px;
  }
}