/*
 * Skin: PAPER LIGHT
 * Vibe : 何の装飾もない普通のブログ。白 + 黒文字 + 青リンク。
 *        ウェブフォント未使用 (system fonts only) → 最速。
 * SEO  : 0 webfont network request, AAA contrast, JS-free.
 */

:root {
  --pl-bg:      #ffffff;
  --pl-bg-elev: #f7f7f8;
  --pl-fg:      #1a1a1a;
  --pl-fg-mute: #4a4a4a;
  --pl-fg-dim:  #8a8a8a;
  --pl-rule:    #e5e5e5;
  --pl-link:    #0b66c2;          /* old-internet blue */
  --pl-link-vis:#6a3aa5;
  --pl-display: -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN',
                'Yu Gothic UI', system-ui, sans-serif;
  --pl-body:    var(--pl-display);
  --pl-mono:    ui-monospace, SFMono-Regular, Menlo, monospace;
  --pl-leading: 1.78;
  --pl-measure: 70ch;
}

html { -webkit-font-smoothing: antialiased; }
body, .body {
  background: var(--pl-bg);
  color: var(--pl-fg);
  font-family: var(--pl-body);
  font-size: 16px;
  line-height: var(--pl-leading);
}

/* Header */
.header, .header-container, .header-container-in {
  background: var(--pl-bg);
  border-bottom: 1px solid var(--pl-rule);
}
.site-name a, .logo-text { color: var(--pl-fg); text-decoration: none; }
.site-name { font-weight: 700; font-size: 1.4rem; letter-spacing: -0.01em; }
.tagline, .site-name-description { color: var(--pl-fg-mute); font-size: 0.84rem; }

/* Nav */
.navi-in, .navi, #navi, .menu-header {
  background: var(--pl-bg); border-bottom: 1px solid var(--pl-rule);
}
.navi-in a, .menu-header a { color: var(--pl-fg); font-size: 0.94rem; }
.navi-in a:hover, .menu-header a:hover { color: var(--pl-link); }

/* Article */
.main { padding-block: clamp(1.5rem, 3vw, 3rem); }
.entry-title {
  font-weight: 700; font-size: clamp(1.6rem, 2.6vw + 0.4rem, 2.4rem);
  line-height: 1.22; letter-spacing: -0.014em; color: var(--pl-fg);
  margin: 0 0 0.6em; text-wrap: balance;
}
.entry-content {
  max-width: var(--pl-measure); margin-inline: auto; font-size: 1rem;
}
.entry-content p { margin: 0 0 1.2em; }
.entry-content a { color: var(--pl-link); text-decoration: underline; }
.entry-content a:visited { color: var(--pl-link-vis); }
.entry-content a:hover { text-decoration-thickness: 2px; }
.entry-content h2 {
  font-weight: 700; font-size: clamp(1.3rem, 1.2vw + 0.9rem, 1.6rem);
  margin: 2.4rem 0 0.8rem; padding: 0; border: none; background: none !important;
  color: var(--pl-fg);
}
.entry-content h3 {
  font-weight: 700; font-size: 1.16rem;
  margin: 1.6rem 0 0.6rem; padding: 0; border: none; background: none !important;
  color: var(--pl-fg);
}
.entry-content h4 {
  font-weight: 700; font-size: 1rem;
  margin: 1.2rem 0 0.4rem; border: none; background: none !important;
  color: var(--pl-fg);
}
.entry-content blockquote {
  border-left: 3px solid var(--pl-rule);
  padding: 0.2rem 0 0.2rem 1rem; margin: 1.4rem 0;
  color: var(--pl-fg-mute); background: none;
}
.entry-content code, .entry-content pre {
  font-family: var(--pl-mono); background: var(--pl-bg-elev);
  border: 1px solid var(--pl-rule); border-radius: 4px;
}
.entry-content pre { padding: 0.9rem 1.1rem; overflow-x: auto; font-size: 0.92em; }
.entry-content code { padding: 0.06em 0.35em; font-size: 0.92em; }

/* Cards */
.entry-card-wrap, .entry-card,
.related-entry-card-wrap, .related-entry-card,
.tile-card, .vertical-card {
  background: var(--pl-bg);
  border: 1px solid var(--pl-rule);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color .15s ease;
}
.entry-card-wrap:hover, .related-entry-card-wrap:hover,
.tile-card:hover, .vertical-card:hover {
  border-color: var(--pl-fg);
}
.entry-card-thumb, .related-entry-card-thumb,
.tile-card-thumb, .tile-card-image, .vertical-card-thumb {
  aspect-ratio: 16 / 9; overflow: hidden; background: var(--pl-bg-elev);
}
.entry-card-thumb img, .related-entry-card-thumb img,
.tile-card-image img, .vertical-card-thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.entry-card-content, .related-entry-card-content,
.tile-card-content, .vertical-card-content { padding: 0.8rem 0.9rem; }
.entry-card-title, .related-entry-card-title,
.tile-card-title, .vertical-card-title {
  font-weight: 700; font-size: 1rem; line-height: 1.36;
  color: var(--pl-fg);
}
.entry-card-snippet, .related-entry-card-snippet {
  color: var(--pl-fg-mute); font-size: 0.88rem;
}
.cat-label, .entry-category, .entry-card-category {
  font-weight: 600; font-size: 0.72rem;
  color: var(--pl-fg-mute); background: var(--pl-bg-elev) !important;
  border: 1px solid var(--pl-rule); padding: 0.14em 0.5em;
  border-radius: 3px;
}

/* Tile overlay */
.tile-card-overlay {
  background: linear-gradient(0deg, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0) 60%);
}
.tile-card-overlay-title { color: #fff !important; font-weight: 700; }

/* Popular widget */
.widget_popular_entries .widget-title,
.widget-popular-entries .widget-title {
  font-weight: 700; font-size: 1.2rem;
  border: none; padding: 0; margin-bottom: 0.8rem;
  background: none !important; color: var(--pl-fg);
}
.popular-entry-card-rank, .ranking-item-rank-number {
  font-weight: 700; font-size: 1.4rem; color: var(--pl-fg-mute);
  background: transparent !important; line-height: 1;
}

/* Sidebar */
.sidebar .widget { background: transparent; }
.widget-title, .sidebar h3 {
  font-weight: 700; font-size: 0.98rem;
  border: none; border-bottom: 1px solid var(--pl-rule);
  padding-bottom: 0.4rem; margin-bottom: 0.8rem;
  background: none !important; color: var(--pl-fg);
}

/* TOC */
.toc {
  background: var(--pl-bg-elev); border: 1px solid var(--pl-rule);
  border-radius: 4px; padding: 1rem 1.2rem;
}
.toc-title { font-weight: 700; background: none; color: var(--pl-fg); }
.toc a { color: var(--pl-link); text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* Footer */
.footer {
  border-top: 1px solid var(--pl-rule); background: var(--pl-bg);
  color: var(--pl-fg-mute); font-size: 0.86rem;
  padding-block: 2rem;
}
.footer a { color: var(--pl-link); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.author-info, .post-author, .author-name { display: none !important; }