/* ═══════════════════════════════════════════
   EC Image Creator — Blog Styles
   LPのデザイントークンを継承
   ═══════════════════════════════════════════ */

:root {
  --bg-main:      #F5F5F7;
  --bg-card:      #FFFFFF;
  --bg-elevated:  #FFFFFF;
  --border:       #E0E0E0;
  --border-light: #EEEEEE;
  --orange:       #FF9900;
  --orange-hover: #E38800;
  --orange-dim:   rgba(255, 153, 0, 0.08);
  --orange-glow:  rgba(255, 153, 0, 0.3);
  --text-primary: #111111;
  --text-muted:   #555555;
  --text-dim:     #888888;
  --radius-sm:    8px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --shadow:       0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg:    0 12px 32px rgba(0, 0, 0, 0.08);
  --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width:    1200px;
  --font-heading: 'Outfit', sans-serif;
  --font-body:    'Plus Jakarta Sans', 'Noto Sans JP', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.9;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV (LPと共通の見た目) ─────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}
.nav-logo-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--orange-dim);
  border-radius: var(--radius-sm);
  color: var(--orange);
}
.nav-logo-icon svg { width: 20px; height: 20px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-weight: 500;
}
.nav-links a { color: var(--text-muted); transition: var(--transition); }
.nav-links a:hover { color: var(--orange); }
.nav-cta {
  background: var(--orange);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: #fff !important;
}
.nav-cta:hover { background: var(--orange-hover); color: #fff !important; }

/* ── BLOG 一覧ページ ─────────────────────── */
.blog-hero {
  padding: 140px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, #FFF7EC 0%, var(--bg-main) 100%);
  border-bottom: 1px solid var(--border-light);
}
.blog-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.blog-hero h1 .accent { color: var(--orange); }
.blog-hero p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
}

.blog-list {
  padding: 60px 0 100px;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--orange);
}
.blog-card-thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #FFE9C9 0%, #FFD091 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
}
.blog-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.blog-card-meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.blog-card-tag {
  background: var(--orange-dim);
  color: var(--orange);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}
.blog-card h2 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-primary);
}
.blog-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  flex: 1;
}
.blog-card-read {
  color: var(--orange);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ── 記事ページ ─────────────────────── */
.article-hero {
  padding: 130px 0 40px;
  background: linear-gradient(180deg, #FFF7EC 0%, var(--bg-main) 100%);
  border-bottom: 1px solid var(--border-light);
}
.article-hero-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.article-breadcrumb a { color: var(--text-muted); }
.article-breadcrumb a:hover { color: var(--orange); }
.article-tag {
  display: inline-block;
  background: var(--orange-dim);
  color: var(--orange);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.article-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  gap: 20px;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.article-meta time { font-weight: 500; }

.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px 40px;
}
.article-body h2 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  margin: 56px 0 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--orange);
  letter-spacing: -0.01em;
}
.article-body h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--text-primary);
}
.article-body h3::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 18px;
  background: var(--orange);
  margin-right: 10px;
  vertical-align: -3px;
  border-radius: 2px;
}
.article-body p {
  margin: 18px 0;
  color: var(--text-primary);
  line-height: 2;
}
.article-body ul, .article-body ol {
  margin: 18px 0 18px 1.5em;
  color: var(--text-primary);
}
.article-body li { margin: 8px 0; line-height: 1.9; }
.article-body strong { color: var(--text-primary); font-weight: 700; background: linear-gradient(transparent 60%, var(--orange-dim) 60%); padding: 0 2px; }
.article-body a {
  color: var(--orange);
  border-bottom: 1px solid var(--orange-dim);
  transition: var(--transition);
}
.article-body a:hover { border-bottom-color: var(--orange); }
.article-body blockquote {
  border-left: 4px solid var(--orange);
  background: var(--orange-dim);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
}
.article-body code {
  background: #F0F2F5;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: ui-monospace, monospace;
  color: #D9480F;
}
.article-body pre {
  background: #1E1E1E;
  color: #F0F0F0;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 0.9em;
}
.article-body pre code { background: transparent; color: inherit; padding: 0; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.article-body table th {
  background: var(--orange-dim);
  color: var(--text-primary);
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
  border-bottom: 2px solid var(--orange);
}
.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
}
.article-body table tr:last-child td { border-bottom: none; }

/* 目次 */
.article-toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 40px 0;
  box-shadow: var(--shadow);
}
.article-toc-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.article-toc ol {
  margin: 0;
  padding-left: 1.4em;
  color: var(--text-muted);
}
.article-toc li { margin: 6px 0; }
.article-toc a { color: var(--text-muted); }
.article-toc a:hover { color: var(--orange); }

/* 購入CTA */
.article-cta {
  max-width: 820px;
  margin: 60px auto;
  padding: 0 24px;
}
.article-cta-inner {
  background: linear-gradient(135deg, #FFF3DE 0%, #FFE1B5 100%);
  border: 2px solid var(--orange);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.article-cta-inner::before {
  content: "";
  position: absolute;
  top: -50%; right: -20%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--orange-glow) 0%, transparent 60%);
  pointer-events: none;
}
.article-cta-inner h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
}
.article-cta-inner p {
  color: var(--text-muted);
  margin-bottom: 24px;
  position: relative;
}
.article-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--orange);
  color: #fff;
  padding: 16px 36px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  box-shadow: 0 8px 24px var(--orange-glow);
  transition: var(--transition);
  position: relative;
}
.article-cta-btn:hover { background: var(--orange-hover); transform: translateY(-2px); }

/* 関連記事 */
.related-articles {
  max-width: 1000px;
  margin: 40px auto 80px;
  padding: 0 24px;
}
.related-articles h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 24px;
  text-align: center;
}

/* ── FOOTER ─────────────────────── */
.footer {
  background: #FAFAFA;
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}
.footer-copy { font-size: 0.85rem; color: var(--text-dim); margin-top: 6px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a:hover { color: var(--orange); }
.footer-contact a { color: var(--orange); }
.footer-contact-note { font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }
.footer-legal {
  display: flex;
  gap: 20px;
  justify-content: center;
  padding: 20px 0;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  flex-wrap: wrap;
}
.footer-legal a:hover { color: var(--orange); }
.footer-bottom { text-align: center; font-size: 0.8rem; color: var(--text-dim); padding-top: 12px; }

/* ── レスポンシブ ─────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .blog-hero { padding: 110px 0 40px; }
  .article-hero { padding: 100px 0 30px; }
  .article-body { padding: 40px 20px; }
  .article-body h2 { font-size: 1.4rem; margin: 40px 0 16px; }
  .article-body h3 { font-size: 1.15rem; }
  .article-cta-inner { padding: 32px 24px; }
  .footer-inner { grid-template-columns: 1fr; }
}