/* ==========================================
   ぼちぼち日和 - メインスタイルシート
   ========================================== */

/* ---------- リセット & 基本設定 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:        #faf8f4;
  --color-surface:   #ffffff;
  --color-border:    #e8e2d8;
  --color-text:      #4a4440;
  --color-text-sub:  #8c847c;
  --color-accent:    #7a9e7e;
  --color-accent-lt: #d4e6d5;
  --color-tag-bg:    #eef4ee;
  --color-footer-bg: #3d3530;
  --color-footer-tx: #c8c0b8;
  --font-main: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Noto Sans JP', 'YuGothic', sans-serif;
  --font-serif: 'Hiragino Mincho ProN', 'Noto Serif JP', 'Yu Mincho', serif;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.07);
  --transition: 0.2s ease;
}

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

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity var(--transition);
}
a:hover { opacity: 0.75; }

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

ul { list-style: none; }

/* ---------- レイアウト共通 ---------- */
.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding: 40px 0 60px;
}

/* ========== ヘッダー ========== */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-logo a {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
}
.site-logo .logo-sub {
  display: block;
  font-family: var(--font-main);
  font-size: 0.65rem;
  color: var(--color-text-sub);
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-top: -2px;
}

.site-nav ul {
  display: flex;
  gap: 28px;
}
.site-nav a {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
  position: relative;
  padding-bottom: 2px;
}
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.site-nav a:hover::after,
.site-nav a.active::after { width: 100%; }

/* ハンバーガーメニュー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* モバイルナビ */
.mobile-nav {
  display: none;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 16px 20px 20px;
}
.mobile-nav.open { display: block; }
.mobile-nav ul { display: flex; flex-direction: column; gap: 12px; }
.mobile-nav a {
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 500;
  display: block;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}

/* ========== ヒーローエリア ========== */
.hero {
  background: linear-gradient(135deg, #f0ede6 0%, #e8f0e8 100%);
  padding: 48px 20px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--color-text);
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}
.hero-desc {
  font-size: 0.95rem;
  color: var(--color-text-sub);
  line-height: 1.7;
  max-width: 460px;
  margin: 0 auto;
}

/* ========== コンテンツグリッド（記事一覧+サイドバー） ========== */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

/* ========== 記事カード一覧 ========== */
.section-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent-lt);
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.article-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  transition: transform var(--transition), box-shadow var(--transition);
}
.article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.card-thumb {
  width: 180px;
  min-height: 140px;
  background: var(--color-accent-lt);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--color-accent);
}
.card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.card-body {
  padding: 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-date {
  font-size: 0.78rem;
  color: var(--color-text-sub);
}
.card-tag {
  font-size: 0.72rem;
  background: var(--color-tag-bg);
  color: var(--color-accent);
  border: 1px solid var(--color-accent-lt);
  border-radius: 20px;
  padding: 2px 10px;
  font-weight: 500;
}
.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}
.card-title:hover { color: var(--color-accent); }
.card-excerpt {
  font-size: 0.87rem;
  color: var(--color-text-sub);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-link {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-top: auto;
}

/* ========== サイドバー ========== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 84px;
}

.sidebar-widget {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.widget-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-sub);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

/* プロフィールウィジェット */
.profile-widget-inner { text-align: center; }
.profile-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--color-accent-lt);
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-accent);
  overflow: hidden;
}
.profile-icon img { width: 100%; height: 100%; object-fit: cover; }
.profile-name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
}
.profile-bio {
  font-size: 0.82rem;
  color: var(--color-text-sub);
  line-height: 1.65;
  text-align: left;
}
.btn-profile {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.82rem;
  background: var(--color-tag-bg);
  color: var(--color-accent);
  border: 1px solid var(--color-accent-lt);
  border-radius: 20px;
  padding: 5px 16px;
  font-weight: 500;
  transition: background var(--transition);
}
.btn-profile:hover { background: var(--color-accent-lt); }

/* カテゴリウィジェット */
.category-list { display: flex; flex-direction: column; gap: 8px; }
.category-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--color-text);
  padding: 4px 0;
  border-bottom: 1px dashed var(--color-border);
}
.category-list a:hover { color: var(--color-accent); }
.cat-count {
  font-size: 0.78rem;
  color: var(--color-text-sub);
}

/* YouTubeウィジェット */
.yt-widget-link {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f8f0f0;
  border: 1px solid #f0d8d8;
  border-radius: 8px;
  padding: 12px;
  color: var(--color-text);
  transition: background var(--transition);
}
.yt-widget-link:hover { background: #fce8e8; }
.yt-icon {
  width: 36px; height: 36px;
  background: #ff0000;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.yt-icon svg { width: 20px; height: 20px; fill: #fff; }
.yt-text { flex: 1; }
.yt-label {
  font-size: 0.72rem;
  color: var(--color-text-sub);
}
.yt-name {
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.3;
}

/* ========== 記事ページ ========== */
.article-header {
  margin-bottom: 32px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.article-title-main {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.5;
  color: var(--color-text);
}

.eyecatch {
  width: 100%;
  aspect-ratio: 16/7;
  background: var(--color-accent-lt);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  margin-bottom: 32px;
  overflow: hidden;
}
.eyecatch img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* 目次 */
.toc {
  background: #f6f3ee;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 36px;
}
.toc-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-sub);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.toc ol {
  list-style: decimal;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.toc li { font-size: 0.9rem; }
.toc a { color: var(--color-text); }
.toc a:hover { color: var(--color-accent); }
.toc .toc-h3 { padding-left: 16px; font-size: 0.85rem; }

/* 本文 */
.article-body {
  font-size: 1rem;
  line-height: 2;
  max-width: 720px;
}
.article-body h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-text);
  margin: 44px 0 16px;
  padding: 10px 16px;
  background: var(--color-accent-lt);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 6px 6px 0;
}
.article-body h3 {
  font-size: 1.05rem;
  color: var(--color-text);
  margin: 32px 0 12px;
  padding-bottom: 4px;
  border-bottom: 2px dashed var(--color-border);
}
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol {
  margin: 12px 0 20px 24px;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 6px; }
.article-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: #f8f5f0;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 6px 6px 0;
  font-size: 0.95rem;
  color: var(--color-text-sub);
}
.article-body strong { color: var(--color-text); font-weight: 700; }

/* YouTubeバナー */
.yt-banner {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, #fff8f8 0%, #fff 100%);
  border: 1px solid #f0d8d8;
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 48px 0;
}
.yt-banner-icon {
  width: 56px; height: 56px;
  background: #ff0000;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.yt-banner-icon svg { width: 30px; height: 30px; fill: #fff; }
.yt-banner-text { flex: 1; }
.yt-banner-label {
  font-size: 0.78rem;
  color: var(--color-text-sub);
  margin-bottom: 2px;
}
.yt-banner-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}
.yt-banner-desc {
  font-size: 0.83rem;
  color: var(--color-text-sub);
}
.btn-yt {
  display: inline-block;
  background: #ff0000;
  color: #fff;
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  transition: background var(--transition);
}
.btn-yt:hover { background: #cc0000; opacity: 1; }

/* 前後の記事リンク */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}
.article-nav-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: block;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.article-nav-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
}
.nav-direction {
  font-size: 0.75rem;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}
.nav-title {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
}
.article-nav-item.next { text-align: right; }

/* ========== プロフィールページ ========== */
.about-wrapper {
  max-width: 680px;
  margin: 0 auto;
}
.about-header {
  text-align: center;
  margin-bottom: 36px;
}
.about-icon {
  width: 120px; height: 120px;
  border-radius: 50%;
  background: var(--color-accent-lt);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  overflow: hidden;
}
.about-icon img { width: 100%; height: 100%; object-fit: cover; }
.about-name {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin-bottom: 4px;
}
.about-handle {
  font-size: 0.88rem;
  color: var(--color-text-sub);
}

.about-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
  margin-bottom: 24px;
}
.about-card h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-sub);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.about-bio {
  font-size: 0.97rem;
  line-height: 2.1;
  color: var(--color-text);
  white-space: pre-line;
}

.about-yt {
  text-align: center;
  margin-top: 8px;
}
.btn-yt-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #ff0000;
  color: #fff;
  border-radius: 8px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 700;
  transition: background var(--transition);
}
.btn-yt-large:hover { background: #cc0000; opacity: 1; }
.btn-yt-large svg { width: 22px; height: 22px; fill: #fff; }

/* ========== フッター ========== */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-tx);
  padding: 36px 20px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: #e8e0d8;
}
.footer-nav ul {
  display: flex;
  gap: 20px;
}
.footer-nav a {
  font-size: 0.85rem;
  color: var(--color-footer-tx);
}
.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.78rem;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* ========== レスポンシブ ========== */
@media (max-width: 768px) {
  .site-nav { display: none; }
  .hamburger { display: flex; }

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

  .article-card {
    flex-direction: column;
  }
  .card-thumb {
    width: 100%;
    min-height: 160px;
  }

  .sidebar {
    position: static;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .yt-banner {
    flex-direction: column;
    text-align: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-nav ul { justify-content: center; }

  .about-card { padding: 20px; }
}

@media (max-width: 480px) {
  .hero { padding: 32px 16px; }
  .card-body { padding: 14px 16px; }
}