/* ===========================================
   Blog Styles — ふじえもんのおへや
   既存の style.css CSS変数を継承
   =========================================== */

/* ===== Blog Layout ===== */
.blog-main {
  max-width: 800px;
  margin: 0 auto;
  padding: 100px var(--space-lg) var(--space-3xl);
  min-height: 100vh;
}

/* ===== Blog Header ===== */
.blog-header {
  margin-bottom: var(--space-2xl);
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.blog-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--fuji-400);
  font-weight: 600;
}

.blog-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.blog-tag {
  font-size: 0.75rem;
  padding: 2px 10px;
  background: rgba(33, 196, 220, 0.15);
  border-radius: 20px;
  color: var(--cyan-300);
}

.blog-title {
  font-size: 1.8rem;
  line-height: 1.4;
  background: linear-gradient(135deg, var(--fuji-300), var(--text-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== Toolbar ===== */
.blog-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-lg);
}

.slide-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 14px;
  font-size: 0.8rem;
  font-family: var(--font-main);
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid rgba(160, 155, 216, 0.2);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.slide-toggle:hover {
  color: var(--fuji-300);
  border-color: var(--fuji-400);
}

.slide-toggle.active {
  color: var(--cyan-300);
  background: rgba(33, 196, 220, 0.1);
  border-color: var(--cyan-400);
}

.slide-toggle-icon {
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.slide-toggle.active .slide-toggle-icon {
  transform: rotate(90deg);
}

/* ===== Blog Content — Typography ===== */
.blog-content {
  line-height: 1.85;
  color: var(--text-primary);
}

.blog-content p {
  margin-bottom: var(--space-lg);
}

.blog-content a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.blog-content a:hover {
  color: var(--cyan-300);
}

/* --- 見出し配色 --- */
.blog-content h2 {
  font-size: 1.4rem;
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-md);
  border-left: 4px solid var(--fuji-400);
  color: var(--fuji-300);
}

.blog-content h3 {
  font-size: 1.15rem;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-md);
  border-left: 4px solid var(--cyan-400);
  color: var(--cyan-300);
}

.blog-content h4 {
  font-size: 1rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-md);
  border-left: 4px solid #f0a060;
  color: #f0c090;
}

.blog-content h5 {
  font-size: 0.9rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

/* --- Lists --- */
.blog-content ul,
.blog-content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.blog-content li {
  margin-bottom: var(--space-sm);
}

.blog-content li::marker {
  color: var(--fuji-400);
}

/* --- Blockquote --- */
.blog-content blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--fuji-500);
  background: var(--bg-elevated);
  border-radius: 0 6px 6px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.blog-content blockquote p:last-child {
  margin-bottom: 0;
}

/* --- Code --- */
.blog-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  background: var(--bg-elevated);
  border: 1px solid rgba(160, 155, 216, 0.15);
  border-radius: 4px;
  color: var(--cyan-300);
}

.blog-content pre {
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid rgba(160, 155, 216, 0.1);
  border-radius: 8px;
  overflow-x: auto;
}

.blog-content pre code {
  padding: 0;
  background: none;
  border: none;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-primary);
}

/* --- Table --- */
.blog-content table {
  width: 100%;
  margin: var(--space-lg) 0;
  border-collapse: collapse;
}

.blog-content th,
.blog-content td {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid rgba(160, 155, 216, 0.15);
  text-align: left;
}

.blog-content th {
  background: var(--bg-elevated);
  color: var(--fuji-300);
  font-weight: 600;
}

/* --- Highlight (==text==) --- */
.blog-content mark {
  background: none;
  color: #ffc857;
  font-weight: 700;
}

/* --- Image --- */
.blog-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: var(--space-lg) 0;
}

/* --- Horizontal Rule --- */
.blog-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--fuji-500), transparent);
  margin: var(--space-2xl) 0;
}

/* ===== Syntax Highlighting (Rouge — dark theme) ===== */
.highlight .k,
.highlight .kd,
.highlight .kn,
.highlight .kp,
.highlight .kr,
.highlight .kt { color: var(--fuji-300); }
.highlight .s,
.highlight .s1,
.highlight .s2,
.highlight .sb,
.highlight .sc,
.highlight .sh { color: #a8d8a8; }
.highlight .c,
.highlight .c1,
.highlight .cm,
.highlight .cs { color: var(--text-muted); font-style: italic; }
.highlight .na,
.highlight .nb,
.highlight .nc { color: var(--cyan-300); }
.highlight .nf,
.highlight .ni { color: #f0c090; }
.highlight .nn { color: var(--fuji-400); }
.highlight .o,
.highlight .ow { color: var(--text-secondary); }
.highlight .mi,
.highlight .mf,
.highlight .mh,
.highlight .mo { color: #d8a8d8; }
.highlight .p { color: var(--text-primary); }
.highlight .err { color: #f08080; }

/* ===== Blog Footer ===== */
.blog-footer {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(160, 155, 216, 0.1);
}

.blog-back {
  color: var(--fuji-400);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.blog-back:hover {
  color: var(--fuji-300);
}

/* ===== Blog Index — Card List ===== */
.blog-list-section {
  padding-top: var(--space-xl);
}

.blog-filter {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
  justify-content: center;
}

.blog-filter-btn {
  font-family: var(--font-main);
  font-size: 0.8rem;
  padding: 4px 14px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid rgba(160, 155, 216, 0.15);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-filter-btn:hover {
  color: var(--fuji-300);
  border-color: var(--fuji-400);
}

.blog-filter-btn.active {
  color: var(--cyan-300);
  background: rgba(33, 196, 220, 0.12);
  border-color: var(--cyan-400);
}

.blog-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.blog-card {
  display: block;
  padding: var(--space-lg) var(--space-xl);
  background: linear-gradient(145deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid rgba(160, 155, 216, 0.1);
  border-radius: 10px;
  transition: all 0.25s;
}

.blog-card:hover {
  border-color: var(--fuji-400);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.blog-card-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fuji-500);
  font-weight: 600;
}

.blog-card-title {
  font-size: 1.15rem;
  margin: var(--space-sm) 0;
  color: var(--text-primary);
  line-height: 1.4;
}

.blog-card-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.blog-card-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.blog-empty {
  text-align: center;
  color: var(--text-muted);
  padding: var(--space-3xl);
}

/* Active nav indicator */
.blog-nav-active {
  color: var(--fuji-300) !important;
}

/* ===== Slide Mode ===== */
body.slide-mode .blog-main {
  max-width: 100%;
  padding: 0;
}

body.slide-mode .blog-header,
body.slide-mode .blog-toolbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 16, 0.95);
  backdrop-filter: blur(10px);
}

body.slide-mode .blog-header {
  padding: var(--space-md) var(--space-xl);
  margin-bottom: 0;
  border-bottom: 1px solid rgba(160, 155, 216, 0.1);
}

body.slide-mode .blog-title {
  font-size: 1.2rem;
}

body.slide-mode .blog-toolbar {
  top: auto;
  bottom: 0;
  justify-content: center;
  padding: var(--space-sm) var(--space-xl);
  border-top: 1px solid rgba(160, 155, 216, 0.1);
  border-bottom: none;
  gap: var(--space-md);
}

body.slide-mode .blog-content {
  padding-top: 120px;
  padding-bottom: 80px;
}

body.slide-mode .blog-footer {
  display: none;
}

body.slide-mode .nav {
  display: none;
}

.slide {
  display: none;
  min-height: calc(100vh - 200px);
  padding: var(--space-2xl) var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
  align-items: center;
  justify-content: center;
}

.slide.active {
  display: flex;
  flex-direction: column;
}

.slide-inner {
  width: 100%;
}

.slide-inner h2,
.slide-inner h3 {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.slide-inner h2 {
  font-size: 2rem;
}

.slide-inner h3 {
  font-size: 1.6rem;
}

.slide-counter {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.slide-nav-btn {
  font-family: var(--font-main);
  font-size: 0.85rem;
  padding: 6px 16px;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid rgba(160, 155, 216, 0.2);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.slide-nav-btn:hover:not(:disabled) {
  color: var(--fuji-300);
  border-color: var(--fuji-400);
}

.slide-nav-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

/* ===========================================
   Terminal Theme — frontmatter `theme: terminal`
   黒背景・白文字・等幅。$プロンプトとタイピング演出付き。
   =========================================== */
.terminal-theme {
  --term-bg: #000000;
  --term-fg: #f5f5f5;
  --term-dim: #9aa0a6;
  --term-accent: #6dd17a;
  --term-cyan: #7fdfff;
  --term-tag-bg: rgba(109, 209, 122, 0.12);
  --term-border: rgba(245, 245, 245, 0.18);
  background: var(--term-bg);
  color: var(--term-fg);
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-feature-settings: "liga" 1, "calt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

.terminal-theme .nav,
.terminal-theme .mobile-menu {
  background: rgba(0, 0, 0, 0.92);
  border-bottom: 1px solid var(--term-border);
  backdrop-filter: blur(6px);
}

.terminal-theme .nav-logo,
.terminal-theme .nav-link,
.terminal-theme .mobile-link,
.terminal-theme .logo-text {
  color: var(--term-fg);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  letter-spacing: 0.02em;
}

.terminal-theme .nav-link:hover,
.terminal-theme .mobile-link:hover,
.terminal-theme .nav-logo:hover {
  color: var(--term-accent);
}

.terminal-theme .blog-nav-active {
  color: var(--term-accent) !important;
}

.terminal-theme .nav-toggle span {
  background: var(--term-fg);
}

/* ----- Header ----- */
.terminal-theme .blog-meta {
  color: var(--term-dim);
}

.terminal-theme .blog-date {
  color: var(--term-dim);
  font-family: 'JetBrains Mono', monospace;
}

.terminal-theme .blog-date::before {
  content: "# ";
  color: var(--term-dim);
}

.terminal-theme .blog-tag {
  background: var(--term-tag-bg);
  color: var(--term-accent);
  border: 1px solid rgba(109, 209, 122, 0.3);
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.02em;
}

.terminal-theme .blog-tag::before {
  content: "--";
  color: var(--term-dim);
  margin-right: 4px;
}

/* ----- Title ($ ./slug) ----- */
.terminal-theme .term-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.6rem;
  line-height: 1.4;
  background: none;
  -webkit-text-fill-color: var(--term-fg);
  color: var(--term-fg);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.terminal-theme .term-prompt {
  color: var(--term-accent);
  font-weight: 700;
}

.terminal-theme .term-cmd {
  color: var(--term-fg);
  word-break: break-all;
}

.terminal-theme .term-caret {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  margin-left: 2px;
  color: var(--term-fg);
  animation: term-blink 1s steps(2, end) infinite;
  transform: translateY(2px);
}

@keyframes term-blink {
  0%, 50% { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}

/* ----- Toolbar ----- */
.terminal-theme .slide-toggle {
  background: transparent;
  border: 1px solid var(--term-border);
  color: var(--term-fg);
  font-family: 'JetBrains Mono', monospace;
  border-radius: 3px;
}

.terminal-theme .slide-toggle:hover {
  color: var(--term-accent);
  border-color: var(--term-accent);
}

.terminal-theme .slide-toggle.active {
  color: var(--term-accent);
  border-color: var(--term-accent);
  background: var(--term-tag-bg);
}

/* ----- Content ----- */
.terminal-theme .blog-content {
  color: var(--term-fg);
  font-family: 'JetBrains Mono', 'BIZ UDPGothic', ui-monospace, monospace;
  font-size: 0.95rem;
  line-height: 1.8;
}

.terminal-theme .blog-content a {
  color: var(--term-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.terminal-theme .blog-content a:hover {
  color: var(--term-fg);
  background: var(--term-cyan);
}

.terminal-theme .blog-content h2,
.terminal-theme .blog-content h3,
.terminal-theme .blog-content h4 {
  font-family: 'JetBrains Mono', monospace;
  background: none;
  -webkit-text-fill-color: currentColor;
  border-left: none;
  padding-left: 0;
  color: var(--term-fg);
}

.terminal-theme .blog-content h2 {
  color: var(--term-accent);
  font-size: 1.25rem;
  margin-top: var(--space-3xl);
}
.terminal-theme .blog-content h2::before { content: "## "; color: var(--term-dim); }

.terminal-theme .blog-content h3 {
  color: var(--term-fg);
  font-size: 1.05rem;
}
.terminal-theme .blog-content h3::before { content: "### "; color: var(--term-dim); }

.terminal-theme .blog-content h4 {
  color: var(--term-dim);
  font-size: 0.95rem;
}
.terminal-theme .blog-content h4::before { content: "#### "; color: var(--term-dim); }

.terminal-theme .blog-content li::marker {
  color: var(--term-accent);
}

.terminal-theme .blog-content blockquote {
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--term-dim);
  border-radius: 0;
  color: var(--term-dim);
  font-style: normal;
}

.terminal-theme .blog-content blockquote::before {
  content: "> ";
  color: var(--term-dim);
  font-weight: 700;
}

.terminal-theme .blog-content code {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--term-border);
  border-radius: 2px;
  color: var(--term-accent);
}

.terminal-theme .blog-content pre {
  background: #0a0a0a;
  border: 1px solid var(--term-border);
  border-radius: 4px;
}

.terminal-theme .blog-content pre code {
  color: var(--term-fg);
  background: none;
  border: none;
}

.terminal-theme .blog-content table th {
  background: rgba(255, 255, 255, 0.05);
  color: var(--term-accent);
  border-color: var(--term-border);
}

.terminal-theme .blog-content table td {
  border-color: var(--term-border);
}

.terminal-theme .blog-content hr {
  background: linear-gradient(to right, transparent, var(--term-border), transparent);
}

.terminal-theme .blog-content mark {
  background: none;
  color: #ffd166;
  font-weight: 700;
}

/* ----- Footer ----- */
.terminal-theme .blog-footer {
  border-top: 1px dashed var(--term-border);
}

.terminal-theme .blog-back {
  color: var(--term-accent);
  font-family: 'JetBrains Mono', monospace;
}

.terminal-theme .blog-back::before {
  content: "$ cd ..  ";
  color: var(--term-dim);
}

/* ----- Slide mode overrides for terminal theme ----- */
.terminal-theme.slide-mode .blog-header,
.terminal-theme.slide-mode .blog-toolbar {
  background: rgba(0, 0, 0, 0.95);
  border-color: var(--term-border);
}

.terminal-theme .slide-counter,
.terminal-theme .slide-nav-btn {
  color: var(--term-fg);
  background: transparent;
  border-color: var(--term-border);
  font-family: 'JetBrains Mono', monospace;
}

.terminal-theme .slide-nav-btn:hover:not(:disabled) {
  color: var(--term-accent);
  border-color: var(--term-accent);
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .terminal-theme .term-title { font-size: 1.2rem; }
  .terminal-theme .blog-content { font-size: 0.9rem; }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .blog-main {
    padding: 80px var(--space-md) var(--space-2xl);
  }

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

  .blog-content h2 {
    font-size: 1.2rem;
  }

  .blog-content h3 {
    font-size: 1.05rem;
  }

  .blog-card {
    padding: var(--space-md) var(--space-lg);
  }

  body.slide-mode .slide {
    padding: var(--space-lg) var(--space-md);
  }

  body.slide-mode .slide-inner h2 {
    font-size: 1.4rem;
  }
}