/*
 * PixelForge DevLog — Terminal-Inspired Developer Changelog Theme
 * =================================================================
 * CSS prefix: pf-
 * Motifs: commit hashes, terminal prompts, monospace typography
 */

/* === Google Fonts: loaded via main.html === */

:root {
  --pf-bg: #0d1117;
  --pf-surface: #161b22;
  --pf-surface-2: #21262d;
  --pf-surface-3: #30363d;
  --pf-line: #30363d;
  --pf-line-strong: #484f58;
  --pf-text: #c9d1d9;
  --pf-text-dim: #e6edf3;
  --pf-muted: #8b949e;
  --pf-accent: #58a6ff;
  --pf-accent-hover: #79c0ff;
  --pf-green: #3fb950;
  --pf-green-dim: rgba(63,185,80,.15);
  --pf-yellow: #d29922;
  --pf-red: #f85149;
  --pf-purple: #a371f7;
  --pf-font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', 'Liberation Mono', monospace;
  --pf-font-sans: 'Inter', -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  --pf-shadow: 0 0 0 1px var(--pf-line);
  --pf-radius: 6px;
  --pf-wrap: 1100px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; padding: 0;
  background: var(--pf-bg);
  color: var(--pf-text);
  font-family: var(--pf-font-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--pf-accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--pf-accent-hover); text-decoration: underline; }

.pf-hidden { display: none; }
.pf-wrap { width: min(var(--pf-wrap), calc(100% - 36px)); margin: 0 auto; }

/* === Buttons === */
.pf-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 38px; padding: 0 18px;
  border: 1px solid var(--pf-line); border-radius: var(--pf-radius);
  background: var(--pf-surface-2); color: var(--pf-text);
  font-family: var(--pf-font-mono); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: .15s;
}
.pf-btn:hover { border-color: var(--pf-accent); color: var(--pf-accent); text-decoration: none; }
.pf-btn-accent { background: #1f6feb; border-color: #1f6feb; color: #fff; }
.pf-btn-accent:hover { background: #388bfd; color: #fff; }

/* === Kicker / Hash label === */
.pf-hash {
  display: inline-flex; align-items: center; gap: 4px;
  font-family: var(--pf-font-mono); font-size: 12px; font-weight: 600;
  color: var(--pf-muted); letter-spacing: .02em;
}
.pf-hash::before { content: '#'; color: var(--pf-muted); }
.pf-hash--green::before { color: var(--pf-green); }
.pf-hash--accent::before { color: var(--pf-accent); }
.pf-hash-accent { color: var(--pf-accent); }

/* === Terminal prompt accent === */
.pf-prompt { font-family: var(--pf-font-mono); color: var(--pf-green); margin-right: 4px; }
.pf-prompt::before { content: '$> '; }

/* === Code badge === */
.pf-badge {
  display: inline-flex; align-items: center; padding: 2px 10px;
  border: 1px solid var(--pf-line); border-radius: var(--pf-radius);
  background: var(--pf-surface-2);
  font-family: var(--pf-font-mono); font-size: 11px; font-weight: 600;
  color: var(--pf-muted);
}

/* === Main layout === */
.pf-main { padding: 28px 0 48px; }

/* =================================================================
 *  HEADER — Terminal-style top bar + nav
 * ================================================================= */
.pf-header { position: sticky; top: 0; z-index: 100; background: rgba(13,17,23,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--pf-line); }
.pf-header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 56px; gap: 16px; flex-wrap: wrap; }

/* Brand */
.pf-brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--pf-font-mono); }
.pf-brand-icon {
  width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--pf-line); border-radius: 4px;
  background: var(--pf-surface-2); color: var(--pf-green);
  font-size: 14px; font-weight: 700;
}
.pf-brand-name { font-size: 18px; font-weight: 700; color: var(--pf-text-dim); }
.pf-brand-name span { color: var(--pf-green); }

/* Header actions */
.pf-header-actions { display: flex; align-items: center; gap: 8px; }
.pf-header-search { display: grid; grid-template-columns: minmax(120px,200px) auto; }
.pf-header-search input {
  height: 34px; border-radius: var(--pf-radius) 0 0 var(--pf-radius);
  border: 1px solid var(--pf-line); border-right: none;
  background: var(--pf-surface); padding: 0 12px;
  color: var(--pf-text); font-size: 13px; font-family: var(--pf-font-mono);
  outline: none; transition: .15s;
}
.pf-header-search input:focus { border-color: var(--pf-accent); }
.pf-header-search input::placeholder { color: var(--pf-muted); font-family: var(--pf-font-sans); }
.pf-header-search button {
  height: 34px; border: 1px solid var(--pf-line); border-radius: 0 var(--pf-radius) var(--pf-radius) 0;
  background: var(--pf-surface-2); color: var(--pf-text);
  padding: 0 14px; font-family: var(--pf-font-mono); font-size: 12px;
  font-weight: 600; cursor: pointer; transition: .15s;
}
.pf-header-search button:hover { background: var(--pf-surface-3); color: var(--pf-accent); }

/* Menu toggle */
.pf-menu-toggle { display: none; width: 34px; height: 34px; border: 1px solid var(--pf-line); border-radius: var(--pf-radius); background: var(--pf-surface); color: var(--pf-text); font-size: 16px; cursor: pointer; align-items: center; justify-content: center; }

/* Nav bar */
.pf-nav { display: flex; flex-wrap: wrap; gap: 2px; padding: 6px 0 12px; border-top: 1px solid var(--pf-line); }
.pf-nav a {
  display: inline-flex; align-items: center; min-height: 32px; padding: 0 14px;
  border-radius: var(--pf-radius); color: var(--pf-muted);
  font-size: 13px; font-family: var(--pf-font-mono); font-weight: 500;
  transition: .15s;
}
.pf-nav a:hover { color: var(--pf-text); background: var(--pf-surface-2); text-decoration: none; }
.pf-nav a.active { color: var(--pf-accent); background: rgba(88,166,255,.08); }

/* =================================================================
 *  HERO SLIDER — Featured article carousel
 * ================================================================= */
.pf-hero-slider {
  position: relative; margin-bottom: 24px; border-radius: var(--pf-radius);
  overflow: hidden; border: 1px solid var(--pf-line); background: var(--pf-surface);
}
.pf-hero-track { display: flex; transition: transform .5s ease; }
.pf-hero-slide { min-width: 100%; flex-shrink: 0; position: relative; height: 420px; }
.pf-hero-bg { position: absolute; inset: 0; }
.pf-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.pf-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(45deg, rgba(13,17,23,.92) 30%, rgba(13,17,23,.55) 100%);
  display: flex; align-items: flex-end;
}
.pf-hero-content { padding: 36px 40px 40px; max-width: 680px; }
.pf-hero-content h1 { margin: 10px 0; font-size: 34px; line-height: 1.2; font-weight: 800; word-wrap: break-word; overflow-wrap: break-word; }
.pf-hero-content h1 a { color: var(--pf-text-dim); }
.pf-hero-content h1 a:hover { color: var(--pf-accent); text-decoration: none; }
.pf-hero-content p { color: var(--pf-muted); font-size: 15px; margin: 0 0 18px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pf-hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.pf-hero-label { font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted); }

/* Arrows */
.pf-hero-prev, .pf-hero-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%; background: rgba(13,17,23,.7); color: #fff;
  font-size: 18px; cursor: pointer; z-index: 5; display: flex;
  align-items: center; justify-content: center; transition: .2s;
  opacity: 0; backdrop-filter: blur(4px);
}
.pf-hero-slider:hover .pf-hero-prev, .pf-hero-slider:hover .pf-hero-next { opacity: 1; }
.pf-hero-prev:hover, .pf-hero-next:hover { background: rgba(13,17,23,.9); border-color: var(--pf-accent); color: var(--pf-accent); }
.pf-hero-prev { left: 16px; }
.pf-hero-next { right: 16px; }

/* Dots */
.pf-hero-dots {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 5;
}
.pf-hero-dots span {
  width: 10px; height: 10px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.3); background: transparent;
  cursor: pointer; transition: .2s;
}
.pf-hero-dots span.active, .pf-hero-dots span:hover { background: var(--pf-accent); border-color: var(--pf-accent); }

/* =================================================================
 *  CARD GRID — Commit-log styled cards
 * ================================================================= */
.pf-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.pf-card {
  background: var(--pf-surface); border: 1px solid var(--pf-line);
  border-radius: var(--pf-radius); overflow: hidden; transition: .15s;
}
.pf-card:hover { border-color: var(--pf-line-strong); }
.pf-card-thumb { display: block; aspect-ratio: 16/10; overflow: hidden; background: var(--pf-surface-2); }
.pf-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.pf-card:hover .pf-card-thumb img { transform: scale(1.03); }
.pf-card-body { padding: 14px 16px 16px; }
.pf-card-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.pf-card-head .pf-badge { font-size: 10px; }
.pf-card h3 { font-size: 16px; margin: 0 0 6px; line-height: 1.4; font-weight: 600; }
.pf-card h3 a { color: var(--pf-text-dim); }
.pf-card h3 a:hover { color: var(--pf-accent); text-decoration: none; }
.pf-card p { color: var(--pf-muted); font-size: 13px; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* =================================================================
 *  STREAM — Changelog entry list
 * ================================================================= */
.pf-stream { display: grid; gap: 12px; margin-bottom: 24px; }
.pf-stream-item {
  display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 16px;
  padding: 14px; background: var(--pf-surface); border: 1px solid var(--pf-line);
  border-radius: var(--pf-radius); transition: .15s;
}
.pf-stream-item:hover { border-color: var(--pf-line-strong); }
.pf-stream-thumb { display: block; border-radius: 4px; overflow: hidden; background: var(--pf-surface-2); aspect-ratio: 16/11; }
.pf-stream-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.pf-stream-item:hover .pf-stream-thumb img { transform: scale(1.03); }
.pf-stream-body { display: flex; flex-direction: column; justify-content: center; }
.pf-stream-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.pf-stream-body h4 { font-size: 16px; margin: 0 0 6px; line-height: 1.35; font-weight: 600; }
.pf-stream-body h4 a { color: var(--pf-text-dim); }
.pf-stream-body h4 a:hover { color: var(--pf-accent); text-decoration: none; }
.pf-stream-excerpt { color: var(--pf-muted); font-size: 13px; margin: 0 0 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pf-stream-meta { font-family: var(--pf-font-mono); font-size: 11px; color: var(--pf-muted); }

/* =================================================================
 *  SECTION HEAD
 * ================================================================= */
.pf-section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.pf-section-head h2 { font-size: 22px; margin: 0; font-weight: 700; font-family: var(--pf-font-mono); color: var(--pf-text-dim); }
.pf-section-head h2::before { content: '## '; color: var(--pf-muted); font-weight: 400; }

/* =================================================================
 *  TWO-COLUMN + SIDEBAR
 * ================================================================= */
.pf-content-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 20px; }
.pf-sidebar { display: grid; gap: 14px; align-content: start; }
.pf-side-panel { padding: 16px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); }
.pf-side-title {
  font-family: var(--pf-font-mono); font-size: 12px; font-weight: 700; color: var(--pf-accent);
  text-transform: uppercase; letter-spacing: .08em; margin: 0 0 12px; padding-bottom: 10px;
  border-bottom: 1px solid var(--pf-line);
}
.pf-side-title::before { content: '## '; color: var(--pf-muted); }
.pf-side-list { list-style: none; padding: 0; margin: 0; }
.pf-side-list li { padding: 8px 0; border-bottom: 1px solid var(--pf-line); font-size: 13px; }
.pf-side-list li:last-child { border-bottom: none; }
.pf-side-list a { color: var(--pf-text); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pf-side-list a:hover { color: var(--pf-accent); text-decoration: none; }
.pf-side-list .pf-side-count { font-family: var(--pf-font-mono); font-size: 10px; color: var(--pf-muted); }

/* Tag cloud */
.pf-tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; }
.pf-tag-cloud a {
  display: inline-flex; align-items: center; gap: 3px; padding: 4px 10px;
  border: 1px solid var(--pf-line); border-radius: 4px;
  font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted);
  transition: .15s;
}
.pf-tag-cloud a:hover { border-color: var(--pf-accent); color: var(--pf-accent); text-decoration: none; }
.pf-tag-cloud a span { font-size: 10px; color: var(--pf-muted); }

/* =================================================================
 *  BREADCRUMB
 * ================================================================= */
.pf-breadcrumb { margin-bottom: 16px; font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted); }
.pf-breadcrumb a { color: var(--pf-muted); }
.pf-breadcrumb a:hover { color: var(--pf-accent); }

/* =================================================================
 *  LIST HEAD (category banner)
 * ================================================================= */
.pf-list-head { padding: 24px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); margin-bottom: 20px; }
.pf-list-head h1 { margin: 8px 0 6px; font-size: 28px; font-weight: 700; font-family: var(--pf-font-mono); color: var(--pf-text-dim); word-wrap: break-word; overflow-wrap: break-word; }
.pf-list-head p { color: var(--pf-muted); font-size: 14px; margin: 0; }
.pf-list-head .pf-list-count { font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-green); margin-top: 8px; }

/* =================================================================
 *  PAGINATION — Terminal-style
 * ================================================================= */
.pf-pagination, .pagination { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; }
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; height: 34px; padding: 0 10px;
  border: 1px solid var(--pf-line); border-radius: var(--pf-radius);
  font-family: var(--pf-font-mono); font-size: 12px;
  color: var(--pf-muted); background: var(--pf-surface);
  transition: .15s;
}
.pagination a:hover { border-color: var(--pf-accent); color: var(--pf-accent); text-decoration: none; }
.pagination .current, .pagination .active { background: #1f6feb; color: #fff; border-color: #1f6feb; font-weight: 600; }

/* =================================================================
 *  ARTICLE DETAIL
 * ================================================================= */
.pf-detail { padding: 28px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); margin-bottom: 20px; }
.pf-detail-header { margin-bottom: 20px; }
.pf-detail-header h1 { font-size: 30px; line-height: 1.25; font-weight: 700; color: var(--pf-text-dim); margin: 10px 0; word-wrap: break-word; overflow-wrap: break-word; }
.pf-detail-meta { font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted); margin-bottom: 14px; display: flex; flex-wrap: wrap; gap: 12px; }
.pf-detail-meta span { display: inline-flex; align-items: center; gap: 4px; }
.pf-detail-cover { margin-bottom: 20px; border-radius: var(--pf-radius); overflow: hidden; border: 1px solid var(--pf-line); aspect-ratio: 16/8; }
.pf-detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.pf-detail-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0; }
.pf-detail-tags a {
  display: inline-flex; align-items: center; gap: 3px; padding: 3px 10px;
  border: 1px solid var(--pf-line); border-radius: 4px;
  font-family: var(--pf-font-mono); font-size: 11px; color: var(--pf-muted);
}
.pf-detail-tags a:hover { border-color: var(--pf-accent); color: var(--pf-accent); text-decoration: none; }

/* Article rich text */
.pf-article-content { color: var(--pf-text); font-size: 16px; line-height: 1.8; word-wrap: break-word; overflow-wrap: break-word; }
.pf-article-content > :first-child { margin-top: 0 !important; }
.pf-article-content h1, .pf-article-content h2, .pf-article-content h3, .pf-article-content h4 { margin: 1.6em 0 .7em; font-weight: 700; line-height: 1.3; font-family: var(--pf-font-mono); }
.pf-article-content h1 { font-size: 24px; color: var(--pf-text-dim); }
.pf-article-content h2 { font-size: 20px; border-bottom: 1px solid var(--pf-line); padding-bottom: 6px; color: var(--pf-text-dim); }
.pf-article-content h3 { font-size: 17px; color: var(--pf-text-dim); }
.pf-article-content h4 { font-size: 15px; }
.pf-article-content p, .pf-article-content div { margin: 0 0 1em; }
.pf-article-content a { text-decoration: underline; text-underline-offset: 3px; }
.pf-article-content b, .pf-article-content strong { font-weight: 600; color: var(--pf-text-dim); }
.pf-article-content ul, .pf-article-content ol { margin: 12px 0; padding: 0 0 0 26px; line-height: 1.8; }
.pf-article-content li { margin-bottom: 4px; }
.pf-article-content img { border-radius: var(--pf-radius); margin: 14px 0; border: 1px solid var(--pf-line); }
.pf-article-content blockquote {
  border-left: 3px solid var(--pf-accent); padding: 10px 18px; margin: 16px 0;
  background: var(--pf-surface-2); border-radius: 0 var(--pf-radius) var(--pf-radius) 0;
  color: var(--pf-muted); font-family: var(--pf-font-mono); font-size: 14px;
}
.pf-article-content blockquote > :first-child { margin-top: 0; }
.pf-article-content blockquote > :last-child { margin-bottom: 0; }
.pf-article-content code {
  padding: 2px 6px; background: var(--pf-surface-2); border: 1px solid var(--pf-line);
  border-radius: 4px; font-size: 13px; font-family: var(--pf-font-mono); color: var(--pf-green);
}
.pf-article-content pre {
  padding: 16px; margin: 16px 0; background: var(--pf-bg); border: 1px solid var(--pf-line);
  border-radius: var(--pf-radius); font-size: 13px; line-height: 1.6;
  overflow-x: auto; font-family: var(--pf-font-mono); color: var(--pf-text);
}
.pf-article-content pre code { padding: 0; background: none; border: none; border-radius: 0; color: inherit; }
.pf-article-content hr { border: 0; border-top: 1px solid var(--pf-line); margin: 20px 0; }
.pf-article-content table { width: 100%; border-collapse: collapse; margin: 16px 0; overflow-x: auto; display: block; }
.pf-article-content td, .pf-article-content th { border: 1px solid var(--pf-line); padding: 6px 10px; text-align: left; font-size: 14px; }
.pf-article-content th { font-weight: 600; background: var(--pf-surface-2); font-family: var(--pf-font-mono); }

/* Prev / Next nav */
.pf-page-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
.pf-page-nav-item { padding: 14px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); transition: .15s; }
.pf-page-nav-item:hover { border-color: var(--pf-line-strong); }
.pf-page-nav-item p { font-family: var(--pf-font-mono); font-size: 11px; color: var(--pf-muted); margin: 0 0 4px; text-transform: uppercase; letter-spacing: .05em; }
.pf-page-nav-item a { font-size: 14px; font-weight: 600; color: var(--pf-text); overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; }
.pf-page-nav-item a:hover { color: var(--pf-accent); text-decoration: none; }
.pf-page-nav-item.next { text-align: right; }

/* Related */
.pf-related h3 { font-family: var(--pf-font-mono); font-size: 14px; color: var(--pf-accent); margin: 0 0 12px; }
.pf-related h3::before { content: '## '; color: var(--pf-muted); }

/* =================================================================
 *  SEARCH PAGE
 * ================================================================= */
.pf-search-panel { padding: 28px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); margin-bottom: 20px; }
.pf-search-panel h1 { margin: 8px 0 0; font-size: 24px; font-weight: 700; color: var(--pf-text-dim); }
.pf-search-wide { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 0; margin-top: 16px; }
.pf-search-wide input {
  height: 40px; border-radius: var(--pf-radius) 0 0 var(--pf-radius);
  border: 1px solid var(--pf-line); border-right: none; background: var(--pf-surface-2);
  padding: 0 14px; color: var(--pf-text); font-size: 14px; font-family: var(--pf-font-mono);
  outline: none;
}
.pf-search-wide input:focus { border-color: var(--pf-accent); }
.pf-search-wide input::placeholder { color: var(--pf-muted); font-family: var(--pf-font-sans); }
.pf-search-wide button {
  height: 40px; border: 0; border-radius: 0 var(--pf-radius) var(--pf-radius) 0;
  padding: 0 20px; background: #1f6feb; color: #fff;
  font-family: var(--pf-font-mono); font-size: 13px; font-weight: 600; cursor: pointer;
}
.pf-search-wide button:hover { background: #388bfd; }

.pf-search-results { display: grid; gap: 10px; }
.pf-search-card { padding: 14px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); transition: .15s; }
.pf-search-card:hover { border-color: var(--pf-line-strong); }
.pf-search-card h3 { font-size: 16px; margin: 0 0 4px; }
.pf-search-card h3 a { color: var(--pf-accent); }
.pf-search-card p { color: var(--pf-muted); font-size: 13px; margin: 0; }

.pf-empty { text-align: center; padding: 48px 20px; color: var(--pf-muted); font-family: var(--pf-font-mono); font-size: 14px; }
.pf-empty::before { content: '> '; color: var(--pf-green); }

/* =================================================================
 *  SO PAGE — Standalone search
 * ================================================================= */
.pf-so-page { width: 100%; min-height: 100vh; background: var(--pf-bg); display: flex; align-items: center; justify-content: center; padding: 36px; }
.pf-so-shell { width: 100%; max-width: 680px; text-align: center; }
.pf-so-brand { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 28px; font-family: var(--pf-font-mono); font-size: 20px; font-weight: 700; color: var(--pf-text-dim); }
.pf-so-brand:hover { color: var(--pf-accent); text-decoration: none; }
.pf-so-brand .pf-brand-icon { width: 28px; height: 28px; font-size: 12px; }
.pf-so-hero { padding: 32px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); }
.pf-so-hero h1 { font-size: 26px; margin: 10px 0 6px; font-weight: 700; font-family: var(--pf-font-mono); color: var(--pf-text-dim); }
.pf-so-hero p { color: var(--pf-muted); font-size: 14px; margin-bottom: 18px; }

.pf-so-form { max-width: 480px; margin: 16px auto; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 0; }
.pf-so-form input {
  height: 44px; border-radius: var(--pf-radius) 0 0 var(--pf-radius);
  border: 1px solid var(--pf-line); border-right: none; background: var(--pf-surface-2);
  padding: 0 14px; color: var(--pf-text); font-size: 14px; font-family: var(--pf-font-mono);
  outline: none;
}
.pf-so-form input:focus { border-color: var(--pf-accent); }
.pf-so-form input::placeholder { color: var(--pf-muted); font-family: var(--pf-font-sans); }
.pf-so-form button {
  height: 44px; border: 0; border-radius: 0 var(--pf-radius) var(--pf-radius) 0;
  padding: 0 22px; background: #1f6feb; color: #fff;
  font-family: var(--pf-font-mono); font-size: 14px; font-weight: 600; cursor: pointer;
}
.pf-so-form button:hover { background: #388bfd; }

.pf-so-hot { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 22px; }
.pf-so-hot a {
  display: inline-flex; align-items: center; padding: 4px 12px;
  border: 1px solid var(--pf-line); border-radius: 4px;
  font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted);
  transition: .15s;
}
.pf-so-hot a:hover { border-color: var(--pf-accent); color: var(--pf-accent); text-decoration: none; }

.pf-so-results-wrap { text-align: left; }
.pf-so-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); margin-bottom: 14px; }
.pf-so-header h1 { font-size: 20px; margin: 0; font-weight: 700; font-family: var(--pf-font-mono); }
.pf-so-form-inline { max-width: 240px; margin: 0; }
.pf-so-form-inline input { height: 34px; padding: 0 10px; font-size: 12px; }
.pf-so-form-inline button { height: 34px; padding: 0 14px; font-size: 12px; }
.pf-so-results { display: grid; gap: 10px; }
.pf-so-item { padding: 14px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); transition: .15s; }
.pf-so-item:hover { border-color: var(--pf-line-strong); }
.pf-so-item h3 { font-size: 16px; margin: 0 0 4px; }
.pf-so-item h3 a { color: var(--pf-accent); }
.pf-so-item h3 a:hover { text-decoration: underline; }
.pf-so-item p { color: var(--pf-muted); font-size: 13px; margin: 0; }

/* =================================================================
 *  TAG PAGES
 * ================================================================= */
.pf-tag-header { display: flex; align-items: center; gap: 14px; padding: 20px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); margin-bottom: 16px; }
.pf-tag-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--pf-line); border-radius: 4px; font-family: var(--pf-font-mono); font-size: 18px; font-weight: 700; color: var(--pf-green); background: var(--pf-surface-2); }
.pf-tag-info h2 { margin: 0 0 4px; font-size: 18px; font-weight: 700; font-family: var(--pf-font-mono); color: var(--pf-text-dim); }
.pf-tag-info p { color: var(--pf-muted); font-size: 13px; margin: 0; font-family: var(--pf-font-mono); }

.pf-tag-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.pf-tag-card { padding: 16px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); text-align: center; transition: .15s; }
.pf-tag-card:hover { border-color: var(--pf-line-strong); }
.pf-tag-card h3 { font-size: 15px; margin: 0 0 4px; font-family: var(--pf-font-mono); }
.pf-tag-card h3 a { color: var(--pf-accent); }
.pf-tag-card p { color: var(--pf-muted); font-size: 12px; margin: 0; font-family: var(--pf-font-mono); }

/* =================================================================
 *  DIY
 * ================================================================= */
.pf-diy-panel { padding: 24px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); }
.pf-diy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }
.pf-diy-item { padding: 14px; background: var(--pf-surface-2); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); font-family: var(--pf-font-mono); }
.pf-diy-item strong { color: var(--pf-accent); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; display: block; margin-bottom: 4px; }
.pf-diy-item span { color: var(--pf-text); font-size: 14px; word-break: break-all; }

/* =================================================================
 *  404 — "command not found"
 * ================================================================= */
.pf-empty-page { text-align: center; padding: 80px 24px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); font-family: var(--pf-font-mono); }
.pf-empty-page h1 { font-size: 64px; font-weight: 800; color: var(--pf-red); line-height: 1; margin-bottom: 8px; }
.pf-empty-page p { color: var(--pf-muted); font-size: 15px; margin-bottom: 24px; }
.pf-empty-page .pf-prompt { display: block; margin-bottom: 8px; }

/* =================================================================
 *  FOOTER
 * ================================================================= */
.pf-footer { padding: 24px 0; margin-top: 16px; }
.pf-footer-inner { display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center; padding: 16px 20px; background: var(--pf-surface); border: 1px solid var(--pf-line); border-radius: var(--pf-radius); }
.pf-footer-brand { font-family: var(--pf-font-mono); font-weight: 600; font-size: 14px; color: var(--pf-text-dim); }
.pf-footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
.pf-footer-links a { font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted); }
.pf-footer-links a:hover { color: var(--pf-accent); }
.pf-footer-copy { font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted); }
.pf-footer-friend { text-align: center; padding: 10px 0; }
.pf-footer-friend a { font-family: var(--pf-font-mono); font-size: 12px; color: var(--pf-muted); margin: 0 6px; }

/* =================================================================
 *  SCROLL TOP
 * ================================================================= */
.pf-scrolltop {
  position: fixed; right: 18px; bottom: 20px;
  width: 38px; height: 38px; border: 1px solid var(--pf-line); border-radius: 4px;
  background: var(--pf-surface-2); color: var(--pf-text); opacity: 0;
  transform: translateY(8px); pointer-events: none; transition: .2s;
  cursor: pointer; font-family: var(--pf-font-mono); font-size: 14px;
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.pf-scrolltop.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.pf-scrolltop:hover { border-color: var(--pf-accent); color: var(--pf-accent); }

/* =================================================================
 *  COMMENTS
 * ================================================================= */
.pf-comments { margin-top: 20px; }

/* =================================================================
 *  RESPONSIVE
 * ================================================================= */
@media (max-width: 1100px) {
  .pf-hero-slide { height: 340px; }
  .pf-card-grid { grid-template-columns: repeat(2, 1fr); }
  .pf-tag-grid { grid-template-columns: repeat(3, 1fr); }
  .pf-content-grid { grid-template-columns: 1fr; }
  .pf-diy-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991px) {
  .pf-menu-toggle { display: inline-flex; }
  .pf-nav { display: none; border-top: none; }
  .pf-nav.open { display: flex; flex-direction: column; }
  .pf-page-nav { grid-template-columns: 1fr; }
  .pf-so-header { flex-direction: column; align-items: stretch; }
  .pf-so-form-inline { max-width: 100%; }
}

@media (max-width: 768px) {
  .pf-wrap { width: min(100% - 18px, var(--pf-wrap)); }
  .pf-main { padding-top: 16px; }
  .pf-header-inner { min-height: 48px; gap: 8px; }
  .pf-brand-name { font-size: 16px; }
  .pf-header-search { grid-template-columns: 1fr auto; }
  .pf-header-search input { min-width: 0; width: 100%; }
  .pf-hero-slide { height: 280px; }
  .pf-hero-content { padding: 20px 22px 24px; }
  .pf-hero-content h1 { font-size: 22px; }
  .pf-hero-content p { font-size: 13px; -webkit-line-clamp: 1; }
  .pf-hero-prev, .pf-hero-next { width: 32px; height: 32px; font-size: 14px; }
  .pf-list-head h1, .pf-detail-header h1 { font-size: 22px; }
  .pf-card-grid { grid-template-columns: 1fr; }
  .pf-tag-grid { grid-template-columns: repeat(2, 1fr); }
  .pf-stream-item { grid-template-columns: 1fr; }
  .pf-stream-thumb { aspect-ratio: 16/9; }
  .pf-diy-grid { grid-template-columns: 1fr; }
  .pf-footer-inner { grid-template-columns: 1fr; text-align: center; }
  .pf-footer-links { justify-content: center; }
  .pf-hero-slider, .pf-list-head, .pf-search-panel, .pf-detail, .pf-diy-panel, .pf-empty-page { padding: 0; }
  .pf-article-content { font-size: 14px; }
  .pf-article-content h1 { font-size: 20px; }
  .pf-article-content h2 { font-size: 17px; }
  .pf-article-content h3 { font-size: 15px; }
  .pf-article-content pre { font-size: 11px; padding: 12px; }
  .pf-article-content img { border-radius: 4px; margin: 10px 0; }
}