/* ================================================
   careX WordPress テーマ — デザイントークン + レイアウト
   ================================================ */

:root {
  /* careX sky トーン（デフォルト） */
  --cx-bg:           #f3f9fe;
  --cx-bg-soft:      #e8f3fc;
  --cx-surface:      #ffffff;
  --cx-ink:          #0e2a3a;
  --cx-ink-soft:     #33536a;
  --cx-muted:        #6b8497;
  --cx-primary:      #0284c7;
  --cx-primary-deep: #0369a1;
  --cx-primary-soft: #e0f2fe;
  --cx-accent:       #10b981;
  --cx-accent-soft:  #d1fae5;
  --cx-border:       rgba(2,132,199,0.14);
  --cx-line:         rgba(14,42,58,0.08);

  /* タイポグラフィ */
  --cx-font-body:    "Noto Sans JP", system-ui, sans-serif;
  --cx-font-heading: "Noto Serif JP", serif;
  --cx-font-mono:    "Space Mono", ui-monospace, monospace;

  /* スペーシング */
  --cx-radius:       1.5rem;
  --cx-radius-sm:    0.875rem;
  --cx-max-width:    72rem;     /* 1152px */
  --cx-article-max:  48rem;     /* 768px */
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cx-bg);
  color: var(--cx-ink);
  font-family: var(--cx-font-body);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--cx-primary); }
a:hover { color: var(--cx-primary-deep); }

/* ── サイトヘッダー ───────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .4s, border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
#site-header.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px) saturate(1.3);
  border-color: var(--cx-line);
}
.site-header-inner {
  max-width: var(--cx-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* ロゴ */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px; height: 38px;
  border-radius: 0.75rem;
  background: linear-gradient(150deg, var(--cx-primary), var(--cx-accent));
  display: grid; place-items: center;
  box-shadow: 0 6px 18px -8px var(--cx-primary);
  transition: transform .5s;
}
.site-logo:hover .logo-icon { transform: rotate(8deg); }
.logo-icon svg { color: #fff; }
.site-name {
  font-size: 22px;
  font-weight: 600;
  color: var(--cx-ink);
  letter-spacing: -0.02em;
  font-family: var(--cx-font-body);
}
.site-name .logo-x { color: var(--cx-primary); }

/* ナビゲーション */
.primary-nav {
  display: none;
  list-style: none;
  margin: 0; padding: 0;
  gap: 1.75rem;
}
@media (min-width: 768px) {
  .primary-nav { display: flex; align-items: center; }
}
.primary-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--cx-ink-soft);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
  transition: color .3s;
}
.primary-nav a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s cubic-bezier(.22,1,.36,1);
  opacity: .55;
}
.primary-nav a:hover::after { transform: scaleX(1); }
.primary-nav a:hover { color: var(--cx-ink); }

/* CTA ボタン */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  background: var(--cx-ink);
  color: #fff;
  text-decoration: none;
  transition: transform .3s;
  box-shadow: 0 8px 20px -10px var(--cx-ink);
  white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-2px); color: #fff; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  border: 1.5px solid var(--cx-border);
  color: var(--cx-ink);
  text-decoration: none;
  background: rgba(255,255,255,0.8);
  transition: transform .3s;
}
.btn-ghost:hover { transform: translateY(-2px); color: var(--cx-ink); }

/* ハンバーガーボタン */
.menu-toggle {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 0.75rem;
  border: 1px solid var(--cx-line);
  background: transparent;
  cursor: pointer;
  color: var(--cx-ink);
}
@media (min-width: 768px) { .menu-toggle { display: none; } }

/* モバイルメニュー */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1.5rem 1.25rem;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--cx-line);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 0.625rem 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--cx-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--cx-line);
}
.mobile-menu a:last-child { border-bottom: none; }

/* ── メインコンテンツ ─────────────────────────────────────── */
main { padding-top: 72px; }

/* ── フロントページ ヒーロー ──────────────────────────────── */
.hero-section {
  background: linear-gradient(165deg, #e3f2fd 0%, #f0f9ff 38%, #ffffff 78%, #ecfdf5 100%);
  padding: 5rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 120% at 80% 0%, rgba(16,185,129,0.16) 0%, rgba(2,132,199,0.10) 35%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: var(--cx-max-width);
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--cx-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cx-primary-deep);
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--cx-border);
  border-radius: 999px;
  padding: 0.375rem 0.875rem;
  margin-bottom: 1.75rem;
}
.hero-section h1 {
  font-family: var(--cx-font-heading);
  font-size: clamp(28px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--cx-ink);
  margin: 0 0 1.5rem;
  max-width: 680px;
}
.hero-section p {
  font-size: clamp(15px, 2vw, 17px);
  line-height: 2;
  color: var(--cx-ink-soft);
  max-width: 440px;
  margin: 0 0 2.25rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
}

/* ── セクション共通 ───────────────────────────────────────── */
.section-inner {
  max-width: var(--cx-max-width);
  margin: 0 auto;
  padding: 5rem 1.5rem;
}
.section-label {
  font-family: var(--cx-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cx-primary);
  display: block;
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--cx-font-heading);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  color: var(--cx-ink);
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}

/* ── 記事一覧グリッド ─────────────────────────────────────── */
.articles-section { background: var(--cx-bg); }

.article-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.filter-btn {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--cx-line);
  background: var(--cx-surface);
  color: var(--cx-ink-soft);
  cursor: pointer;
  text-decoration: none;
  transition: background .2s, color .2s, border-color .2s;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--cx-ink);
  color: #fff;
  border-color: var(--cx-ink);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.article-card {
  background: var(--cx-surface);
  border-radius: var(--cx-radius);
  border: 1px solid var(--cx-line);
  overflow: hidden;
  box-shadow: 0 16px 40px -34px var(--cx-primary);
  transition: transform .5s cubic-bezier(.22,1,.36,1);
}
.article-card:hover { transform: translateY(-6px); }
.article-card a { text-decoration: none; color: inherit; display: flex; flex-direction: column; height: 100%; }
.article-card-thumb {
  aspect-ratio: 16/9;
  background: var(--cx-primary-soft);
  background-image: repeating-linear-gradient(135deg, #cfe6f7 0 12px, transparent 12px 26px);
  overflow: hidden;
  transition: transform .7s cubic-bezier(.22,1,.36,1);
  position: relative;
}
.article-card:hover .article-card-thumb { transform: scale(1.05); }
.article-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.article-card-body { padding: 1.25rem; display: flex; flex-direction: column; flex: 1; }
.article-cat {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  background: var(--cx-primary-soft);
  color: var(--cx-primary-deep);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  margin-bottom: 0.75rem;
  text-decoration: none;
}
.article-cat a { color: inherit; text-decoration: none; }
.article-card-body h2,
.article-card-body h3 {
  font-family: var(--cx-font-heading);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cx-ink);
  margin: 0 0 0.5rem;
}
.article-card-body p {
  font-size: 13px;
  color: var(--cx-ink-soft);
  line-height: 1.7;
  margin: 0 0 1rem;
  flex: 1;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 12px;
  color: var(--cx-muted);
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--cx-line);
}

/* ── 記事ページ ───────────────────────────────────────────── */
.article-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 200;
  background: rgba(14,42,58,0.08);
  pointer-events: none;
}
.article-progress-fill {
  height: 100%;
  background: var(--cx-primary);
  width: 0%;
  transition: width 80ms linear;
  border-radius: 0 2px 2px 0;
}

.article-hero {
  background: linear-gradient(165deg, #e3f2fd 0%, #f0f9ff 38%, #ffffff 78%, #ecfdf5 100%);
  padding: 5rem 1.5rem 0;
}
.article-hero-inner {
  max-width: var(--cx-article-max);
  margin: 0 auto;
  padding-bottom: 2.5rem;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 13px;
  color: var(--cx-muted);
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: var(--cx-primary); text-decoration: none; font-weight: 500; }
.breadcrumb span { opacity: .4; }
.article-hero .article-cat { margin-bottom: 1rem; }
.article-hero h1 {
  font-family: var(--cx-font-heading);
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 800;
  line-height: 1.38;
  letter-spacing: -0.01em;
  color: var(--cx-ink);
  margin: 0 0 0.75rem;
}
.article-hero .article-sub {
  font-size: 16px;
  line-height: 1.85;
  color: var(--cx-ink-soft);
  margin: 0 0 1.25rem;
}
.article-hero .article-meta {
  border: none; padding: 0;
  margin-bottom: 2rem;
}
.article-featured-img {
  border-radius: var(--cx-radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--cx-primary-soft);
  background-image: repeating-linear-gradient(135deg, #cfe6f7 0 12px, transparent 12px 26px);
}
.article-featured-img img { width: 100%; height: 100%; object-fit: cover; }
.article-wave svg { display: block; width: 100%; height: 48px; margin-bottom: -2px; }

/* 記事本文エリア（article.css と連携） */
.article-content-wrap { background: #F5F3EF; }

/* 監修者カード */
.author-card-section {
  background: var(--cx-bg);
  padding: 3.5rem 1.5rem 0;
}
.author-card {
  max-width: var(--cx-article-max);
  margin: 0 auto;
  background: var(--cx-surface);
  border-radius: var(--cx-radius);
  padding: 2rem 2.25rem;
  border: 1px solid var(--cx-line);
  box-shadow: 0 24px 56px -44px var(--cx-primary);
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: flex-start;
}
.author-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--cx-primary-soft);
  background-image: repeating-linear-gradient(135deg, #cfe6f7 0 12px, transparent 12px 26px);
  flex-shrink: 0;
}
.author-info { flex: 1; min-width: 180px; }
.author-label {
  font-family: var(--cx-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cx-muted);
  margin-bottom: 0.25rem;
}
.author-name {
  font-family: var(--cx-font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--cx-ink);
  margin: 0 0 0.5rem;
}
.author-bio { font-size: 14px; color: var(--cx-ink-soft); line-height: 1.9; margin: 0 0 0.875rem; }
.author-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.author-tag {
  display: inline-flex; align-items: center; gap: 0.375rem;
  background: var(--cx-bg-soft); color: var(--cx-ink-soft);
  border: 1px solid var(--cx-line); border-radius: 999px;
  padding: 0.3rem 0.75rem; font-size: 12px;
}

/* 関連記事 */
.related-section {
  background: var(--cx-bg);
  padding: 2rem 1.5rem 4rem;
}
.related-inner {
  max-width: var(--cx-article-max);
  margin: 0 auto;
  border-top: 1px solid var(--cx-line);
  padding-top: 2.5rem;
}
.related-inner .section-title { font-size: 22px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.125rem;
  margin-top: 1.5rem;
}

/* ── ニュースレター ────────────────────────────────────────── */
.newsletter-section {
  background: var(--cx-bg);
  padding: 0 1.5rem 5rem;
}
.newsletter-inner {
  max-width: var(--cx-max-width);
  margin: 0 auto;
  background: linear-gradient(150deg, var(--cx-primary), var(--cx-primary-deep));
  border-radius: 1.75rem;
  padding: 3.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.newsletter-inner::before {
  content: "";
  position: absolute; top: -4rem; right: -2.5rem;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,0.10);
}
.newsletter-inner::after {
  content: "";
  position: absolute; bottom: -5rem; left: -2.5rem;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.newsletter-inner h2 {
  font-family: var(--cx-font-heading);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 800;
  color: #fff;
  margin: 0 0 0.75rem;
  position: relative;
}
.newsletter-inner p {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  margin: 0 auto 1.75rem;
  max-width: 400px;
  position: relative;
}
.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
  margin: 0 auto;
  position: relative;
}
@media (min-width: 480px) { .newsletter-form { flex-direction: row; } }
.newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.875rem 1.25rem;
  border-radius: 999px;
  border: none;
  font-size: 15px;
  background: rgba(255,255,255,0.95);
  color: var(--cx-ink);
  outline: none;
}
.newsletter-form button {
  padding: 0.875rem 1.5rem;
  border-radius: 999px;
  border: none;
  font-size: 15px;
  font-weight: 600;
  background: var(--cx-ink);
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .3s;
}
.newsletter-form button:hover { transform: translateY(-2px); }

/* ── フッター ─────────────────────────────────────────────── */
#site-footer {
  background: var(--cx-ink);
  padding: 4rem 1.5rem 2.25rem;
}
.footer-inner {
  max-width: var(--cx-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2.5rem;
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255,255,255,0.6);
  max-width: 240px;
  margin: 1rem 0 1.25rem;
}
.footer-social { display: flex; gap: 0.625rem; }
.footer-social a {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 13px;
  transition: background .3s;
}
.footer-social a:hover { background: rgba(255,255,255,0.18); color: #fff; }
.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 1rem;
  letter-spacing: 0.02em;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.625rem; }
.footer-col ul a {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color .3s;
}
.footer-col ul a:hover { color: rgba(255,255,255,0.95); }
.footer-bottom {
  max-width: var(--cx-max-width);
  margin: 2.5rem auto 0;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}
.footer-copyright { font-size: 12px; color: rgba(255,255,255,0.45); }
.footer-disclaimer { font-size: 11px; color: rgba(255,255,255,0.4); max-width: 560px; line-height: 1.7; }

/* ── ページネーション ─────────────────────────────────────── */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem 0;
}
.pagination a, .pagination span {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--cx-ink-soft);
  border: 1px solid var(--cx-line);
  transition: background .2s, color .2s;
}
.pagination a:hover, .pagination .current {
  background: var(--cx-ink);
  color: #fff;
  border-color: var(--cx-ink);
}

/* ── スクロールリビール ───────────────────────────────────── */
.cx-reveal { transform: none; }
.js-anim .cx-reveal {
  transform: translateY(18px);
  transition: transform .8s cubic-bezier(.22,1,.36,1);
  transition-delay: var(--rv-delay, 0ms);
}
.js-anim .cx-reveal.is-in { transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js-anim .cx-reveal { transform: none; transition: none; }
}