/* ============================================================
 * 科学で見抜く図鑑 — style.css
 * Design: 科学新聞 エディトリアル・ジャーナリズム美学
 * Color: Navy #0F2340 / Offwhite #F8F6F1 / Amber #E8A020
 * Font: Noto Serif JP (serif) + Noto Sans JP (sans)
 * ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  background: #F8F6F1;
  color: #1A1A1A;
  line-height: 1.7;
}

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

/* ── Typography ── */
.font-serif { font-family: 'Noto Serif JP', 'Hiragino Mincho ProN', Georgia, serif; }

h1, h2, h3 { font-family: 'Noto Serif JP', 'Hiragino Mincho ProN', Georgia, serif; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* ── Color tokens ── */
:root {
  --navy: #0F2340;
  --navy-light: #1a3a5c;
  --amber: #E8A020;
  --offwhite: #F8F6F1;
  --red: #D63B2F;
  --green: #2D6A4F;
  --text: #1A1A1A;
  --text-muted: rgba(26,26,26,0.55);
  --border: rgba(15,35,64,0.15);
}

/* ── Navbar ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--offwhite);
  border-bottom: 2px solid var(--navy);
  box-shadow: 0 2px 8px rgba(15,35,64,0.08);
}

.header-top {
  background: var(--navy);
  color: #fff;
  font-size: 0.72rem;
  padding: 0.3rem 0;
}
.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header-top span { opacity: 0.8; }

.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
  gap: 1rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--navy);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-icon svg { width: 20px; height: 20px; }
.logo-text-main {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--navy);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.logo-text-sub {
  font-size: 0.62rem;
  color: rgba(15,35,64,0.55);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.site-nav a {
  font-size: 0.88rem;
  color: var(--text);
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--amber);
  transition: width 0.2s;
}
.site-nav a:hover { color: var(--navy); }
.site-nav a:hover::after { width: 100%; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--navy);
}
.nav-toggle svg { width: 22px; height: 22px; }

.mobile-nav {
  display: none;
  background: var(--offwhite);
  border-top: 1px solid var(--border);
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.mobile-nav a:hover { background: rgba(15,35,64,0.04); }

@media (max-width: 767px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
}

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 99px;
}
.badge svg { width: 13px; height: 13px; }
.badge-debunked { background: rgba(214,59,47,0.12); color: var(--red); }
.badge-caution  { background: rgba(232,160,32,0.15); color: #b87d10; }
.badge-verified { background: rgba(45,106,79,0.12); color: var(--green); }

/* ── Section common ── */
.section { padding: 4rem 0; }
.section-alt { background: #fff; }

.section-header { margin-bottom: 2.5rem; }
.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--navy);
  line-height: 1.25;
}
.section-desc {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 600px;
}
.section-divider {
  width: 40px; height: 3px;
  background: var(--amber);
  margin-top: 0.75rem;
}

/* ── Hero ── */
.hero {
  background: var(--offwhite);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  min-height: 480px;
  padding: 3rem 0;
}
@media (max-width: 767px) {
  .hero-inner { grid-template-columns: 1fr; min-height: auto; padding: 2rem 0; }
  .hero-image { order: -1; }
}
.hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 2px;
  background: var(--amber);
}
.hero-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.hero-title em {
  font-style: normal;
  color: var(--amber);
}
.hero-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 1.5rem;
}
.hero-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  border: 2px solid transparent;
  text-decoration: none;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.btn-primary:hover { background: var(--navy-light); border-color: var(--navy-light); }
.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-sm { padding: 0.45rem 1rem; font-size: 0.82rem; }

.hero-stats {
  display: flex;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}
.stat-num {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--navy);
  display: block;
}
.stat-label { font-size: 0.75rem; color: var(--text-muted); }

.hero-image {
  position: relative;
}
.hero-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(15,35,64,0.18);
}
.hero-callout {
  position: absolute;
  bottom: -1rem;
  left: -1rem;
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--amber);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  box-shadow: 0 4px 16px rgba(15,35,64,0.1);
  max-width: 220px;
}
.callout-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}
.callout-text {
  font-size: 0.8rem;
  color: var(--navy);
  font-weight: 600;
}

/* ── Zukan Grid ── */
.zukan-controls {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.filter-btn {
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  border-radius: 99px;
  background: #fff;
  color: rgba(15,35,64,0.65);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.search-input {
  margin-left: auto;
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: #fff;
  width: 180px;
  outline: none;
  transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--navy); }

.zukan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.zukan-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  border-left: 4px solid transparent;
  box-shadow: 0 2px 8px rgba(15,35,64,0.06);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}
.zukan-card:hover { box-shadow: 0 6px 20px rgba(15,35,64,0.12); transform: translateY(-2px); }
.zukan-card.debunked { border-left-color: var(--red); }
.zukan-card.caution  { border-left-color: var(--amber); }
.zukan-card.verified { border-left-color: var(--green); }

.card-header {
  padding: 1rem 1rem 0.75rem;
}
.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.card-category {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--offwhite);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.card-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 0.25rem;
}
.card-catch {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.card-body {
  padding: 0 1rem 0.75rem;
  font-size: 0.85rem;
  color: rgba(26,26,26,0.78);
  line-height: 1.65;
  flex: 1;
}
.card-footer {
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-expand-btn {
  font-size: 0.78rem;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.card-expand-btn:hover { color: var(--navy); }
.card-detail-link {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color 0.15s;
}
.card-detail-link:hover { color: var(--amber); }
.card-detail-link svg { width: 12px; height: 12px; }

.card-expanded {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--border);
  display: none;
}
.card-expanded.open { display: block; }
.expand-section { margin-top: 0.75rem; }
.expand-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.expand-list { display: flex; flex-direction: column; gap: 0.3rem; }
.expand-list li {
  font-size: 0.82rem;
  color: rgba(26,26,26,0.75);
  display: flex;
  gap: 0.5rem;
}
.expand-list li .icon { flex-shrink: 0; }
.expand-summary {
  margin-top: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-left: 3px solid var(--amber);
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--navy);
  background: rgba(232,160,32,0.05);
}

/* ── Request Form ── */
.request-box {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.request-box h3 {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 0.4rem;
}
.request-box p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group.full { grid-column: 1 / -1; }
.form-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy);
}
.form-label .req { color: var(--red); }
.form-input, .form-textarea {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-family: inherit;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: var(--offwhite);
  outline: none;
  transition: border-color 0.15s;
}
.form-input:focus, .form-textarea:focus { border-color: var(--navy); }
.form-textarea { resize: vertical; min-height: 72px; }
.form-actions { display: flex; gap: 0.5rem; margin-top: 0.5rem; }
.btn-ghost {
  background: none;
  border: none;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem 0.75rem;
}
.btn-ghost:hover { color: var(--text); }

/* ── Thinking Tools ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}
.tool-card {
  background: #fff;
  border-radius: 8px;
  padding: 1.25rem;
  border: 1px solid var(--border);
  transition: box-shadow 0.2s;
}
.tool-card:hover { box-shadow: 0 4px 16px rgba(15,35,64,0.1); }
.tool-icon {
  width: 40px; height: 40px;
  background: rgba(15,35,64,0.06);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}
.tool-icon svg { width: 20px; height: 20px; color: var(--navy); }
.tool-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
  margin-bottom: 0.4rem;
}
.tool-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}
.tool-example {
  font-size: 0.8rem;
  background: rgba(232,160,32,0.08);
  border-left: 3px solid var(--amber);
  padding: 0.5rem 0.65rem;
  color: var(--navy);
  border-radius: 0 4px 4px 0;
}
.tool-example strong { font-weight: 700; }

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 767px) { .about-grid { grid-template-columns: 1fr; } }
.about-text p {
  font-size: 0.9rem;
  color: rgba(26,26,26,0.78);
  line-height: 1.85;
  margin-bottom: 1rem;
}
.about-principles { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.25rem; }
.principle {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem;
  background: #fff;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.principle-num {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--amber);
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}
.principle-body h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.2rem;
}
.principle-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

.structure-box {
  background: var(--navy);
  color: #fff;
  border-radius: 8px;
  overflow: hidden;
}
.structure-layer {
  padding: 1.25rem 1.5rem;
}
.structure-layer + .structure-layer {
  border-top: 1px solid rgba(255,255,255,0.1);
}
.structure-layer-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}
.structure-layer-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.structure-layer-items {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.structure-layer-items li {
  font-size: 0.82rem;
  opacity: 0.8;
  display: flex;
  gap: 0.5rem;
}
.structure-layer-items li::before { content: '→'; color: var(--amber); flex-shrink: 0; }
.structure-note {
  font-size: 0.78rem;
  opacity: 0.6;
  margin-top: 0.75rem;
  font-style: italic;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
@media (max-width: 767px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info h3 {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.contact-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.contact-items { display: flex; flex-direction: column; gap: 0.65rem; }
.contact-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem;
  background: #fff;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.contact-item-icon {
  width: 32px; height: 32px;
  background: rgba(15,35,64,0.06);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item-icon svg { width: 16px; height: 16px; color: var(--navy); }
.contact-item-title { font-size: 0.82rem; font-weight: 700; color: var(--navy); }
.contact-item-desc { font-size: 0.78rem; color: var(--text-muted); }

/* ── Footer ── */
.site-footer {
  background: var(--navy);
  color: #fff;
  padding: 2.5rem 0 1.5rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.footer-brand .logo-text-main { color: #fff; }
.footer-brand .logo-text-sub { color: rgba(255,255,255,0.45); }
.footer-brand p {
  font-size: 0.78rem;
  opacity: 0.5;
  margin-top: 0.5rem;
  max-width: 260px;
  line-height: 1.6;
}
.footer-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: 0.82rem;
  opacity: 0.65;
  transition: opacity 0.15s;
}
.footer-nav a:hover { opacity: 1; }
.footer-copy {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1rem;
  font-size: 0.72rem;
  opacity: 0.35;
  text-align: center;
}

/* ── Detail Page ── */
.breadcrumb {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.breadcrumb-list a { transition: color 0.15s; }
.breadcrumb-list a:hover { color: var(--navy); }
.breadcrumb-sep { opacity: 0.4; }

.detail-main { padding: 2.5rem 0 4rem; }
.detail-inner { max-width: 760px; margin: 0 auto; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  transition: color 0.15s;
}
.back-link:hover { color: var(--navy); }
.back-link svg { width: 14px; height: 14px; }

.detail-header {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 2rem;
}
.detail-header-inner {
  padding: 1.5rem;
}
.detail-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.detail-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 900;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--navy);
  margin-bottom: 0.4rem;
}
.detail-catch { font-size: 0.85rem; color: var(--text-muted); }

.conclusion-box {
  background: var(--navy);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}
.conclusion-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}
.conclusion-text {
  font-size: 0.92rem;
  color: #F8F6F1;
  line-height: 1.8;
}

.detail-section { margin-bottom: 2rem; }
.detail-section-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--navy);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.claim-list { display: flex; flex-direction: column; gap: 0.5rem; }
.claim-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.65rem 0.85rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.88rem;
  color: rgba(26,26,26,0.78);
}
.claim-tag {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--red);
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.fact-list { display: flex; flex-direction: column; gap: 0.65rem; }
.fact-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: rgba(26,26,26,0.78);
  line-height: 1.65;
}
.fact-icon { color: var(--green); flex-shrink: 0; margin-top: 0.15rem; }
.fact-icon svg { width: 16px; height: 16px; }

.why-list { display: flex; flex-direction: column; gap: 0.5rem; }
.why-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.65rem 0.85rem;
  background: rgba(232,160,32,0.06);
  border: 1px solid rgba(232,160,32,0.2);
  border-radius: 6px;
  font-size: 0.88rem;
  color: rgba(26,26,26,0.78);
}
.why-arrow { color: var(--amber); font-weight: 700; flex-shrink: 0; }

.checkpoint-box {
  background: rgba(15,35,64,0.04);
  border: 1px solid rgba(15,35,64,0.12);
  border-radius: 8px;
  padding: 1.25rem;
}
.checkpoint-list { display: flex; flex-direction: column; gap: 0.65rem; }
.checkpoint-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: rgba(15,35,64,0.8);
  line-height: 1.65;
}
.checkpoint-box-icon { color: var(--amber); font-weight: 700; flex-shrink: 0; }

.summary-box {
  border-left: 4px solid var(--amber);
  padding: 0.75rem 1rem;
  margin-bottom: 2rem;
}
.summary-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}
.summary-text {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
  line-height: 1.65;
}

.faq-list { display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}
.faq-q {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.faq-a {
  font-size: 0.85rem;
  color: rgba(26,26,26,0.72);
  line-height: 1.75;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
@media (max-width: 480px) { .related-grid { grid-template-columns: 1fr; } }
.related-card {
  display: block;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border-left: 4px solid transparent;
  transition: box-shadow 0.2s;
}
.related-card:hover { box-shadow: 0 4px 12px rgba(15,35,64,0.1); }
.related-card.debunked { border-left-color: var(--red); background: rgba(214,59,47,0.04); }
.related-card.caution  { border-left-color: var(--amber); background: rgba(232,160,32,0.04); }
.related-card.verified { border-left-color: var(--green); background: rgba(45,106,79,0.04); }
.related-badge-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
}
.related-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--navy);
}
.related-catch {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.detail-back-row {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--navy);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  z-index: 9999;
  transition: transform 0.3s ease;
  white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Utility ── */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }