/*
Theme Name: AntiAging Media
Theme URI: https://example.com
Description: OurAge風 アンチエイジング特化オウンドメディア WordPress テーマ
Version: 1.0.0
Author: RRCH Inc.
Text Domain: antiaging-media
Requires at least: 6.0
Requires PHP: 8.0
License: GNU General Public License v2 or later
*/

/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
  --color-primary: #2c2c2c;
  --color-accent: #c4a265;
  --color-accent-hover: #b08c4a;
  --color-text: #333333;
  --color-text-light: #777777;
  --color-bg: #ffffff;
  --color-bg-light: #f8f7f5;
  --color-bg-cream: #faf9f7;
  --color-border: #e5e2dc;
  --color-border-light: #f0ede8;
  --color-white: #ffffff;
  --color-category-supple: #6b8e6b;
  --color-category-cosme: #c97878;
  --color-category-clinic: #5b7fa5;
  --color-category-exercise: #d4954a;
  --color-category-food: #8b7bb5;
  --color-category-seminar: #888888;
  --font-main: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  --font-accent: 'Noto Serif JP', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  --font-en: 'Roboto', 'Noto Sans JP', sans-serif;
  --max-width: 1200px;
  --sidebar-width: 300px;
  --gap: 30px;
  --radius: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.10);
  --transition: 0.3s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
}

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ========================================
   Header
   ======================================== */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-top {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  padding: 6px 0;
}

.header-top-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
}

.header-top a {
  color: rgba(255,255,255,0.8);
  font-size: 0.75rem;
}

.header-top a:hover {
  color: var(--color-white);
}

.header-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo .logo-placeholder {
  width: 240px;
  height: 50px;
  background: var(--color-bg-light);
  border: 2px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.85rem;
  border-radius: var(--radius);
}

.site-title {
  font-family: var(--font-accent);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.site-title a {
  color: inherit;
}

.site-description {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-search {
  position: relative;
}

.header-search input[type="search"] {
  width: 200px;
  padding: 8px 36px 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.85rem;
  font-family: var(--font-main);
  background: var(--color-bg-light);
  transition: all var(--transition);
}

.header-search input[type="search"]:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-white);
  width: 240px;
}

.header-search button {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  font-size: 1rem;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition);
}

/* ========================================
   Navigation
   ======================================== */
.main-navigation {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.nav-menu {
  display: flex;
  justify-content: center;
  gap: 0;
  border-top: 1px solid var(--color-border-light);
  margin-top: 16px;
}

.nav-menu li {
  position: relative;
}

.nav-menu li a {
  display: block;
  padding: 14px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  position: relative;
  transition: all var(--transition);
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after {
  width: 100%;
}

.nav-menu li a:hover {
  color: var(--color-accent);
}

/* Category color indicators */
.nav-menu li a .nav-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

.cat-supple .nav-dot { background: var(--color-category-supple); }
.cat-cosme .nav-dot { background: var(--color-category-cosme); }
.cat-clinic .nav-dot { background: var(--color-category-clinic); }
.cat-exercise .nav-dot { background: var(--color-category-exercise); }
.cat-food .nav-dot { background: var(--color-category-food); }
.cat-seminar .nav-dot { background: var(--color-category-seminar); }

/* ========================================
   Layout
   ======================================== */
.site-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  gap: var(--gap);
}

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

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

/* ========================================
   Hero Slider
   ======================================== */
.hero-slider {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 0;
}

.slider-container {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}

.slider-track {
  display: flex;
  transition: transform 0.5s ease;
}

.slide-item {
  min-width: 100%;
  position: relative;
}

.slide-image-placeholder {
  width: 100%;
  aspect-ratio: 21 / 9;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
  border-radius: 6px;
}

.slide-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px 30px 30px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  border-radius: 0 0 6px 6px;
}

.slide-category {
  display: inline-block;
  padding: 3px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-white);
  border-radius: 2px;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.slide-title {
  font-family: var(--font-accent);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.5;
}

.slider-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.slider-dot.active {
  background: var(--color-accent);
  width: 24px;
  border-radius: 4px;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.slider-arrow:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-hover);
}

.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }

/* ========================================
   Section Headers
   ======================================== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}

.section-title {
  font-family: var(--font-accent);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.section-title-en {
  font-family: var(--font-en);
  font-size: 0.7rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 2px;
}

.section-more {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.section-more::after {
  content: '\203A';
  font-size: 1.2rem;
}

/* ========================================
   Article Cards
   ======================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.article-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  border: 1px solid var(--color-border-light);
}

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

.article-card-image {
  position: relative;
  overflow: hidden;
}

.article-card-image .image-placeholder {
  width: 100%;
  aspect-ratio: 3 / 2;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.8rem;
}

.article-card-image img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform var(--transition);
}

.article-card:hover .article-card-image img {
  transform: scale(1.03);
}

.article-card-category {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 10px;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-white);
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.category-supple { background: var(--color-category-supple); }
.category-cosme { background: var(--color-category-cosme); }
.category-clinic { background: var(--color-category-clinic); }
.category-exercise { background: var(--color-category-exercise); }
.category-food { background: var(--color-category-food); }
.category-seminar { background: var(--color-category-seminar); }

.article-card-body {
  padding: 16px;
}

.article-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.article-card-date {
  font-family: var(--font-en);
}

.article-card-author {
  display: flex;
  align-items: center;
  gap: 6px;
}

.author-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-border);
}

/* Featured article (large) */
.article-card-featured {
  grid-column: span 2;
}

.article-card-featured .image-placeholder,
.article-card-featured img {
  aspect-ratio: 2 / 1;
}

.article-card-featured .article-card-title {
  font-size: 1.15rem;
}

/* ========================================
   Article List (horizontal)
   ======================================== */
.articles-list .article-list-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.articles-list .article-list-item:last-child {
  border-bottom: none;
}

.article-list-image {
  width: 120px;
  flex-shrink: 0;
}

.article-list-image .image-placeholder {
  width: 120px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border-light) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.7rem;
}

.article-list-image img {
  width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius);
}

.article-list-body {
  flex: 1;
}

.article-list-category {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--color-white);
  border-radius: 2px;
  margin-bottom: 4px;
}

.article-list-title {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-list-date {
  font-family: var(--font-en);
  font-size: 0.7rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* ========================================
   Ranking
   ======================================== */
.ranking-section {
  margin-bottom: 48px;
}

.ranking-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
}

.ranking-tab {
  padding: 8px 20px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-bottom: none;
  cursor: pointer;
  color: var(--color-text-light);
  transition: all var(--transition);
}

.ranking-tab:first-child {
  border-radius: var(--radius) 0 0 0;
}

.ranking-tab:last-child {
  border-radius: 0 var(--radius) 0 0;
}

.ranking-tab.active {
  background: var(--color-white);
  color: var(--color-accent);
  border-color: var(--color-accent);
  border-bottom: 2px solid var(--color-white);
  margin-bottom: -1px;
}

.ranking-list {
  counter-reset: ranking;
}

.ranking-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border-light);
  align-items: center;
  counter-increment: ranking;
}

.ranking-item:last-child {
  border-bottom: none;
}

.ranking-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-text-light);
  flex-shrink: 0;
}

.ranking-item:nth-child(1) .ranking-number { background: var(--color-accent); }
.ranking-item:nth-child(2) .ranking-number { background: #a0a0a0; }
.ranking-item:nth-child(3) .ranking-number { background: #c4956a; }

.ranking-image {
  width: 80px;
  flex-shrink: 0;
}

.ranking-image .image-placeholder {
  width: 80px;
  height: 54px;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border-light) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: var(--color-text-light);
}

.ranking-title {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.5;
  flex: 1;
}

/* ========================================
   Category Pickup
   ======================================== */
.category-pickup {
  margin-bottom: 48px;
}

.category-pickup-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}

.category-pickup-header .cat-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 0.85rem;
}

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

/* ========================================
   Popular Tags
   ======================================== */
.popular-tags {
  margin-bottom: 48px;
}

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

.tag-link {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.8rem;
  color: var(--color-text);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition);
}

.tag-link:hover {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

/* ========================================
   Sidebar Widgets
   ======================================== */
.widget {
  margin-bottom: 32px;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.widget-title {
  font-family: var(--font-accent);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 18px;
  background: var(--color-primary);
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.widget-title-en {
  font-family: var(--font-en);
  font-size: 0.6rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 2px;
  display: block;
}

.widget-content {
  padding: 18px;
}

/* Sidebar ranking */
.sidebar-ranking-item {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border-light);
  align-items: flex-start;
}

.sidebar-ranking-item:last-child {
  border-bottom: none;
}

.sidebar-ranking-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-text-light);
  flex-shrink: 0;
  margin-top: 2px;
}

.sidebar-ranking-item:nth-child(1) .sidebar-ranking-num { background: var(--color-accent); }
.sidebar-ranking-item:nth-child(2) .sidebar-ranking-num { background: #a0a0a0; }
.sidebar-ranking-item:nth-child(3) .sidebar-ranking-num { background: #c4956a; }

.sidebar-ranking-title {
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.5;
}

/* Sidebar banner */
.sidebar-banner {
  margin-bottom: 32px;
}

.banner-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border-light) 100%);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.8rem;
  text-align: center;
  line-height: 1.6;
}

/* Sidebar categories */
.sidebar-categories li {
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-categories li:last-child {
  border-bottom: none;
}

.sidebar-categories li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 0.85rem;
  font-weight: 500;
}

.sidebar-categories li a::after {
  content: '\203A';
  color: var(--color-text-light);
  font-size: 1.1rem;
}

.sidebar-categories li a:hover {
  color: var(--color-accent);
}

.sidebar-cat-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

/* Sidebar tags */
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sidebar-tags .tag-link {
  font-size: 0.75rem;
  padding: 4px 10px;
}

/* ========================================
   Single Post
   ======================================== */
.single-header {
  margin-bottom: 30px;
}

.single-breadcrumb {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.single-breadcrumb a {
  color: var(--color-text-light);
}

.single-breadcrumb a:hover {
  color: var(--color-accent);
}

.single-breadcrumb .separator {
  margin: 0 4px;
}

.single-category {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-white);
  border-radius: 2px;
  margin-bottom: 12px;
}

.single-title {
  font-family: var(--font-accent);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.single-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--color-text-light);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border-light);
}

.single-date {
  font-family: var(--font-en);
}

.single-author {
  display: flex;
  align-items: center;
  gap: 8px;
}

.single-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-border);
}

.single-featured-image {
  margin-bottom: 30px;
  border-radius: 6px;
  overflow: hidden;
}

.single-featured-image .image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* Post content */
.post-content {
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 40px;
}

.post-content h2 {
  font-family: var(--font-accent);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 48px 0 20px;
  padding: 16px 20px;
  background: var(--color-bg-cream);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.post-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.post-content p {
  margin-bottom: 1.6em;
}

.post-content blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--color-bg-cream);
  border-left: 3px solid var(--color-accent);
  font-style: italic;
  color: var(--color-text-light);
}

.post-content ul,
.post-content ol {
  margin: 16px 0;
  padding-left: 24px;
}

.post-content ul {
  list-style: disc;
}

.post-content ol {
  list-style: decimal;
}

.post-content li {
  margin-bottom: 8px;
}

.post-content img {
  border-radius: var(--radius);
  margin: 24px 0;
}

.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Post tags */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--color-border-light);
}

/* Author box */
.author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--color-bg-cream);
  border-radius: var(--radius);
  margin-bottom: 40px;
}

.author-box-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-border);
  flex-shrink: 0;
}

.author-box-name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.author-box-bio {
  font-size: 0.8rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Related posts */
.related-posts {
  margin-bottom: 40px;
}

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

/* ========================================
   Archive / Category Pages
   ======================================== */
.archive-header {
  margin-bottom: 32px;
  padding: 24px;
  background: var(--color-bg-cream);
  border-radius: var(--radius);
}

.archive-title {
  font-family: var(--font-accent);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
}

.archive-description {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 8px;
  line-height: 1.7;
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 40px;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  font-family: var(--font-en);
  font-size: 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.pagination a:hover {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.pagination .current {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.8);
  margin-top: 60px;
}

.footer-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 20px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-about .footer-logo {
  font-family: var(--font-accent);
  font-size: 1.3rem;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-about p {
  font-size: 0.8rem;
  line-height: 1.7;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
  transition: color var(--transition);
}

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

.footer-sns {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-sns a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.8);
  font-size: 0.85rem;
  transition: all var(--transition);
}

.footer-sns a:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px;
  text-align: center;
}

.footer-bottom-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
}

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

.copyright {
  font-family: var(--font-en);
  color: rgba(255,255,255,0.5);
}

/* ========================================
   LINE CTA Banner
   ======================================== */
.line-cta {
  background: linear-gradient(135deg, #06c755 0%, #04a847 100%);
  border-radius: 6px;
  padding: 24px;
  text-align: center;
  color: var(--color-white);
  margin-bottom: 32px;
}

.line-cta-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.line-cta-text {
  font-size: 0.8rem;
  margin-bottom: 14px;
  opacity: 0.9;
}

.line-cta-button {
  display: inline-block;
  padding: 10px 30px;
  background: var(--color-white);
  color: #06c755;
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 24px;
  transition: all var(--transition);
}

.line-cta-button:hover {
  background: rgba(255,255,255,0.9);
  color: #04a847;
  transform: scale(1.02);
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-card-featured {
    grid-column: span 2;
  }

  .category-pickup-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-content {
    flex-direction: column;
    padding: 24px 16px;
  }

  .sidebar {
    width: 100%;
  }

  .header-main {
    padding: 14px 16px 0;
  }

  .header-search input[type="search"] {
    width: 160px;
  }

  .header-search input[type="search"]:focus {
    width: 160px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    z-index: 999;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu li a {
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav-menu li a::after {
    display: none;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .article-card-featured {
    grid-column: span 1;
  }

  .category-pickup-grid {
    grid-template-columns: 1fr;
  }

  .related-posts-grid {
    grid-template-columns: 1fr;
  }

  .single-title {
    font-size: 1.4rem;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: 10px;
  }

  .hero-slider {
    padding: 16px 16px 0;
  }

  .slide-title {
    font-size: 1.1rem;
  }

  .slide-content {
    padding: 20px 16px 16px;
  }

  .header-top {
    display: none;
  }
}

@media (max-width: 480px) {
  .header-right {
    gap: 8px;
  }

  .site-title {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 1.1rem;
  }

  .ranking-tab {
    padding: 6px 12px;
    font-size: 0.75rem;
  }
}