/* =====================================================
   SCAN-PRO.JP ブログ用CSS（Astra子テーマ style.css への追記分）
   LP準拠カラースキーム (#B91C1C 赤系)
   ===================================================== */

/* === CSS VARIABLES === */
:root {
  --sp-primary: #B91C1C;
  --sp-primary-dark: #991B1B;
  --sp-primary-light: #EF4444;
  --sp-primary-lighter: #FEE2E2;
  --sp-text: #111827;
  --sp-text-secondary: #4B5563;
  --sp-text-muted: #9CA3AF;
  --sp-bg-white: #FFFFFF;
  --sp-bg-light: #F9FAFB;
  --sp-bg-dark: #111827;
  --sp-border: #E5E7EB;
  --sp-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --sp-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --sp-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --sp-radius: 12px;
  --sp-max-w: 1200px;
}

/* === RESET (blog pages only) === */
.scanpro-blog-wrap *, .scanpro-blog-wrap *::before, .scanpro-blog-wrap *::after { box-sizing: border-box; }
.scanpro-blog-wrap img { max-width: 100%; height: auto; display: block; }

/* =====================================================
   BLOG HEADER
   ===================================================== */
.scanpro-blog-header {
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--sp-bg-white);
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid var(--sp-border);
}
.scanpro-blog-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.scanpro-blog-header-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 20px; height: 72px;
  display: flex; align-items: center; justify-content: space-between;
}
.scanpro-blog-logo { display: flex; align-items: center; text-decoration: none; }
.scanpro-blog-logo img { height: 32px; width: auto; }
.scanpro-blog-header-actions { display: flex; align-items: center; gap: 12px; }
.scanpro-blog-nav-link {
  font-size: 14px; font-weight: 500; color: var(--sp-text);
  text-decoration: none; transition: color 0.3s;
}
.scanpro-blog-nav-link:hover { color: var(--sp-primary); }
.scanpro-blog-phone {
  display: flex; align-items: center; gap: 6px;
  color: var(--sp-text); text-decoration: none;
  font-weight: 700; font-size: 16px; font-family: 'Poppins', sans-serif;
}
.scanpro-blog-phone svg { color: var(--sp-primary); }

/* Header Buttons */
.scanpro-blog-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 6px; font-size: 14px; font-weight: 600;
  text-decoration: none; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); cursor: pointer; border: none;
  font-family: 'Noto Sans JP', sans-serif;
}
.scanpro-blog-btn-primary { background: var(--sp-primary); color: #fff !important; }
.scanpro-blog-btn-primary:hover { background: var(--sp-primary-dark); color: #fff !important; }
.scanpro-blog-btn-outline { background: transparent; border: 1px solid var(--sp-border); color: var(--sp-text); }
.scanpro-blog-btn-outline:hover { background: var(--sp-bg-light); border-color: var(--sp-text-muted); }

/* Mobile menu toggle */
.scanpro-blog-mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.scanpro-blog-mobile-toggle svg { width: 28px; height: 28px; stroke: var(--sp-text); fill: none; stroke-width: 2; }

/* Mobile menu */
.scanpro-blog-mobile-menu {
  display: none; position: fixed; inset: 0; background: var(--sp-bg-dark); z-index: 2000;
  padding: 80px 24px; flex-direction: column; gap: 20px;
}
.scanpro-blog-mobile-menu.active { display: flex; }
.scanpro-blog-mobile-menu a { color: #fff; font-size: 1.1rem; font-weight: 500; text-decoration: none; }
.scanpro-blog-mobile-close {
  position: absolute; top: 20px; right: 24px; background: none; border: none; cursor: pointer;
}
.scanpro-blog-mobile-close svg { width: 28px; height: 28px; stroke: #fff; }

/* =====================================================
   BLOG FOOTER
   ===================================================== */
.scanpro-blog-footer { background: var(--sp-bg-dark); padding: 56px 0 0; color: rgba(255,255,255,0.55); }
.scanpro-blog-footer-inner { max-width: var(--sp-max-w); margin: 0 auto; padding: 0 24px; }
.scanpro-blog-footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.scanpro-blog-footer-brand .footer-logo { margin-bottom: 14px; display: inline-block; background: #fff; padding: 8px 14px; border-radius: 6px; }
.scanpro-blog-footer-brand .footer-logo img { height: 32px; display: block; }
.scanpro-blog-footer-brand p { font-size: 0.88rem; line-height: 1.65; max-width: 280px; }
.scanpro-blog-footer-col h4 {
  color: #fff; font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px;
}
.scanpro-blog-footer-col a {
  display: block; font-size: 0.88rem; padding: 5px 0;
  color: rgba(255,255,255,0.45); transition: color 0.3s, padding-left 0.3s; text-decoration: none;
}
.scanpro-blog-footer-col a:hover { color: #fff; padding-left: 4px; }
.scanpro-blog-footer-bottom {
  display: flex; align-items: center; justify-content: center;
  padding: 20px 0; font-size: 0.78rem;
}

/* =====================================================
   BLOG ARCHIVE / LISTING
   ===================================================== */
.scanpro-blog-wrap {
  max-width: var(--sp-max-w); margin: 0 auto;
  padding: 120px 24px 80px;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--sp-text); line-height: 1.8;
}

/* Archive header */
.scanpro-blog-archive-header { text-align: center; margin-bottom: 48px; }
.scanpro-blog-label {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--sp-primary); background: var(--sp-primary-lighter);
  padding: 6px 16px; border-radius: 100px; margin-bottom: 14px;
}
.scanpro-blog-archive-header h1 {
  font-size: 2.2rem; color: var(--sp-primary); margin-top: 12px;
  font-weight: 700; line-height: 1.2;
}
.scanpro-blog-archive-header .subtitle {
  font-size: 1.05rem; color: var(--sp-text-muted); line-height: 1.7;
  max-width: 640px; margin: 14px auto 0;
}

/* Blog Grid */
.scanpro-blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

/* Post Card */
.scanpro-post-card {
  background: var(--sp-bg-white); border: 1px solid var(--sp-border);
  border-radius: var(--sp-radius); overflow: hidden;
  transition: all 0.35s cubic-bezier(0.22,1,0.36,1);
}
.scanpro-post-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,0.1); }
.scanpro-post-card-img {
  display: block; overflow: hidden; aspect-ratio: 16/10; background: var(--sp-bg-light);
}
.scanpro-post-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.22,1,0.36,1);
}
.scanpro-post-card:hover .scanpro-post-card-img img { transform: scale(1.06); }
.scanpro-post-card-body { padding: 24px; }
.scanpro-post-card-meta {
  font-size: 0.78rem; color: var(--sp-text-muted); margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.scanpro-post-card-meta .cat-link { color: var(--sp-primary); font-weight: 600; text-decoration: none; }
.scanpro-post-card-meta .cat-link:hover { text-decoration: underline; }
.scanpro-post-card-title { font-size: 1.15rem; font-weight: 700; line-height: 1.35; margin-bottom: 10px; }
.scanpro-post-card-title a { color: var(--sp-text); transition: color 0.3s; text-decoration: none; }
.scanpro-post-card-title a:hover { color: var(--sp-primary); }
.scanpro-post-card-excerpt { color: var(--sp-text-muted); font-size: 0.9rem; line-height: 1.65; margin-bottom: 16px; }
.scanpro-post-card-link {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.88rem; font-weight: 600; color: var(--sp-primary);
  transition: gap 0.3s, color 0.3s; text-decoration: none;
}
.scanpro-post-card-link:hover { gap: 8px; color: var(--sp-primary-dark); }

/* Pagination */
.scanpro-blog-pagination { margin-top: 56px; text-align: center; }
.scanpro-blog-pagination .nav-links { display: flex; gap: 8px; justify-content: center; align-items: center; }
.scanpro-blog-pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500; color: var(--sp-text);
  background: var(--sp-bg-light); border: 1px solid var(--sp-border);
  transition: all 0.25s; text-decoration: none;
}
.scanpro-blog-pagination .page-numbers:hover {
  background: var(--sp-primary-lighter); color: var(--sp-primary); border-color: var(--sp-primary-lighter);
}
.scanpro-blog-pagination .page-numbers.current {
  background: var(--sp-primary); color: #fff; border-color: var(--sp-primary);
}

/* Empty state */
.scanpro-blog-empty { padding: 80px 0; text-align: center; }

/* =====================================================
   SINGLE POST
   ===================================================== */
.scanpro-blog-wrap--single { max-width: 1280px; }
.scanpro-blog-wrap--single .scanpro-blog-container { max-width: 880px; transition: max-width 0.4s ease, margin 0.4s ease; }
.scanpro-blog-wrap--single.has-toc .scanpro-blog-container { max-width: 880px; margin-right: 340px; margin-left: 24px; }
.scanpro-blog-wrap--single.toc-closed .scanpro-blog-container { max-width: 880px; margin: 0 auto; }

/* Back link */
.scanpro-back-to-blog {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.88rem; font-weight: 500; color: var(--sp-primary);
  margin-bottom: 28px; transition: gap 0.3s; text-decoration: none;
}
.scanpro-back-to-blog:hover { gap: 10px; }

/* Post Header */
.scanpro-single-post-header { margin-bottom: 32px; }
.scanpro-single-post-header h1 {
  color: var(--sp-text); margin-bottom: 14px;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem); line-height: 1.25; font-weight: 800;
}
.scanpro-single-post-meta {
  font-size: 0.85rem; color: var(--sp-text-muted);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.scanpro-single-post-meta .sep { color: var(--sp-border); }
.scanpro-single-post-meta a { color: var(--sp-primary); font-weight: 500; transition: color 0.3s; text-decoration: none; }
.scanpro-single-post-meta a:hover { color: var(--sp-primary-dark); }

/* Thumbnail */
.scanpro-single-post-thumbnail { margin-bottom: 36px; border-radius: var(--sp-radius); overflow: hidden; }
.scanpro-single-post-thumbnail img { width: 100%; height: auto; display: block; }

/* Article Content */
.scanpro-single-post-content { font-size: 1.05rem; line-height: 1.85; color: var(--sp-text); min-width: 0; }
.scanpro-single-post-content p { margin-bottom: 1.5em; }
.scanpro-single-post-content h2 {
  margin: 70px 0 10px; padding: 8px 0 8px 18px;
  font-size: 1.65rem; font-weight: 700; line-height: 1.4;
  color: #7F1D1D; border-left: 5px solid var(--sp-primary);
}
.scanpro-single-post-content h3 {
  margin: 43px 0 10px; padding: 10px 14px;
  font-size: 1.3rem; font-weight: 700; line-height: 1.4;
  color: #991B1B; background: rgba(185, 28, 28, 0.05); border-radius: 4px;
}
.scanpro-single-post-content h4 { margin: 1.5em 0 0.5em; font-size: 1.1rem; color: var(--sp-text); }
.scanpro-single-post-content img { border-radius: var(--sp-radius); margin: 1.5em 0; }
.scanpro-single-post-content a { color: var(--sp-primary); text-decoration: underline; transition: color 0.3s; }
.scanpro-single-post-content a:hover { color: var(--sp-primary-dark); }
.scanpro-single-post-content ul, .scanpro-single-post-content ol { margin: 0 0 1.5em 1.5em; }
.scanpro-single-post-content li { margin-bottom: 0.5em; }
.scanpro-single-post-content blockquote {
  margin: 1.5em 0; padding: 20px 24px; border-left: 4px solid var(--sp-primary);
  background: var(--sp-bg-light); border-radius: 0 var(--sp-radius) var(--sp-radius) 0;
  font-style: italic; color: var(--sp-text-secondary);
}
.scanpro-single-post-content pre {
  margin: 1.5em 0; padding: 20px; background: #1e293b; color: #e2e8f0;
  border-radius: var(--sp-radius); overflow-x: auto; font-size: 0.9rem; line-height: 1.6;
}
.scanpro-single-post-content code { font-family: 'Fira Code', monospace; font-size: 0.9em; }
.scanpro-single-post-content :not(pre) > code {
  background: var(--sp-primary-lighter); padding: 2px 6px; border-radius: 4px;
  color: var(--sp-primary); font-size: 0.88em;
}

/* =====================================================
   TOC PANEL — Card / Modern Style
   ===================================================== */
.scanpro-toc-panel {
  position: fixed; top: 88px; right: -350px; width: 300px;
  max-height: calc(100vh - 110px); z-index: 900;
  display: flex; flex-direction: column;
  background: var(--sp-bg-white);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.04);
  border: 1px solid var(--sp-border);
  transition: right 0.4s cubic-bezier(0.22,1,0.36,1); overflow: hidden;
}
.scanpro-toc-panel.visible { right: 16px; }

.scanpro-toc-panel-header {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--sp-border);
  background: var(--sp-bg-light);
  color: var(--sp-text);
}
.scanpro-toc-panel-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--sp-primary-lighter);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  color: var(--sp-primary);
}
.scanpro-toc-panel-label {
  font-size: 0.88rem; font-weight: 700; letter-spacing: 0.02em; flex: 1;
  color: var(--sp-text);
}
.scanpro-toc-panel-close {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--sp-bg-light); border: 1px solid var(--sp-border); cursor: pointer;
  color: var(--sp-text-secondary); display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.scanpro-toc-panel-close:hover { background: var(--sp-primary-lighter); color: var(--sp-primary); border-color: var(--sp-primary); }

/* Progress bar */
.scanpro-toc-progress { height: 3px; background: var(--sp-bg-light); }
.scanpro-toc-progress-bar {
  height: 100%; width: 0;
  background: var(--sp-primary);
  border-radius: 0 2px 2px 0;
  transition: width 0.15s ease-out;
}

/* TOC Navigation */
.scanpro-toc-nav {
  flex: 1; overflow-y: auto; padding: 14px 12px 18px;
  scrollbar-width: thin; scrollbar-color: var(--sp-border) transparent;
}
.scanpro-toc-nav::-webkit-scrollbar { width: 4px; }
.scanpro-toc-nav::-webkit-scrollbar-track { background: transparent; }
.scanpro-toc-nav::-webkit-scrollbar-thumb { background: var(--sp-border); border-radius: 2px; }

.scanpro-toc-list { list-style: none; margin: 0; padding: 0; }
.scanpro-toc-item { margin-bottom: 2px; }
.scanpro-toc-item.scanpro-toc-h3 { padding-left: 28px; }
.scanpro-toc-link {
  display: block; padding: 8px 12px;
  font-size: 0.8rem; line-height: 1.5; color: var(--sp-text-muted);
  border-radius: 8px;
  transition: all 0.2s ease; text-decoration: none;
}
.scanpro-toc-item.scanpro-toc-h2 .scanpro-toc-link { font-weight: 600; color: var(--sp-text-secondary); font-size: 0.82rem; }
.scanpro-toc-item.scanpro-toc-h3 .scanpro-toc-link { font-size: 0.76rem; color: var(--sp-text-muted); }
.scanpro-toc-link:hover { color: var(--sp-primary); background: var(--sp-bg-light); }
.scanpro-toc-link.active {
  color: var(--sp-primary); font-weight: 600;
  background: var(--sp-primary-lighter);
}

/* Reopen button */
.scanpro-toc-reopen {
  position: fixed; top: 50%; right: 0; transform: translateY(-50%); z-index: 899;
  width: 44px; height: 44px; border-radius: 12px 0 0 12px;
  background: var(--sp-bg-white); color: var(--sp-primary); border: 1px solid var(--sp-border); border-right: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: -4px 2px 12px rgba(0,0,0,0.08); transition: width 0.2s, background 0.2s;
}
.scanpro-toc-reopen:hover { width: 52px; background: var(--sp-primary-lighter); }

/* Post Navigation */
.scanpro-single-post-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--sp-border);
}
.scanpro-post-nav-link {
  padding: 20px; border: 1px solid var(--sp-border); border-radius: var(--sp-radius);
  transition: all 0.3s; display: flex; flex-direction: column; gap: 6px; text-decoration: none;
}
.scanpro-post-nav-link:hover { border-color: var(--sp-primary); background: var(--sp-bg-light); }
.scanpro-post-nav-link.next { text-align: right; }
.scanpro-post-nav-label {
  font-size: 0.78rem; color: var(--sp-text-muted); font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.scanpro-post-nav-title { font-size: 0.95rem; font-weight: 600; color: var(--sp-text); line-height: 1.4; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1200px) {
  .scanpro-toc-panel { display: none !important; }
  .scanpro-toc-reopen { display: none !important; }
  .scanpro-blog-wrap--single .scanpro-blog-container { max-width: 800px; margin: 0 auto !important; }
  .scanpro-blog-wrap--single.has-toc .scanpro-blog-container { margin: 0 auto !important; }
}
@media (max-width: 768px) {
  /* --- Header mobile (LP準拠) --- */
  .scanpro-blog-header-inner { padding: 0 16px; height: 60px; }
  .scanpro-blog-header-actions { gap: 8px; }
  .scanpro-blog-header-actions .scanpro-blog-btn-outline { display: none; }
  .scanpro-blog-header-actions .scanpro-blog-nav-link { display: none; }
  .scanpro-blog-header-actions .scanpro-blog-phone { display: none; }
  .scanpro-blog-mobile-toggle { display: block; }
  .scanpro-blog-header-actions .scanpro-blog-btn-primary {
    padding: 8px 16px;
    font-size: 13px;
  }
  .scanpro-blog-logo img { height: 28px; }

  /* --- Content area --- */
  .scanpro-blog-wrap { padding: 76px 16px 60px; }
  .scanpro-blog-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }

  /* --- Footer mobile (LP準拠) --- */
  .scanpro-blog-footer { padding: 48px 16px 24px; }
  .scanpro-blog-footer-inner { padding: 0; }
  .scanpro-blog-footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .scanpro-blog-footer-bottom { flex-direction: column; gap: 10px; text-align: center; }

  /* --- Single post --- */
  .scanpro-blog-wrap--single { padding-top: 70px; }
  .scanpro-single-post-header h1 { font-size: 1.4rem; line-height: 1.3; }
  .scanpro-single-post-content { font-size: 0.92rem; line-height: 1.7; }
  .scanpro-single-post-content h2 {
    margin: 40px 0 8px; padding: 6px 0 6px 12px; font-size: 1.15rem;
  }
  .scanpro-single-post-content h3 {
    margin: 28px 0 8px; padding: 8px 10px; font-size: 1.02rem;
  }
  .scanpro-single-post-nav { grid-template-columns: 1fr; }
  .scanpro-post-nav-link.next { text-align: left; }
}
@media (max-width: 480px) {
  .scanpro-blog-grid { grid-template-columns: 1fr; margin: 0 auto; max-width: 400px; }
  .scanpro-blog-header-actions .scanpro-blog-btn-primary {
    padding: 6px 12px;
    font-size: 12px;
  }
}