/* ==========================================================================
   LiverDecoded — Guideline Page Stylesheet
   ========================================================================== */

/* --- Variables --- */
:root {
  --color-bg: #FAFAF7;
  --color-surface: #FFFFFF;
  --color-text: #1C1917;
  --color-text-secondary: #57534E;
  --color-accent: #0E7C5F;
  --color-accent-light: #E8F5F0;
  --color-accent-dark: #065F46;
  --color-warning: #B45309;
  --color-warning-bg: #FEF3C7;
  --color-border: #E7E5E4;
  --color-border-strong: #D6D3D1;
  --color-tag-bg: #F5F5F4;
  --color-link-blue: #1D4ED8;
  --font-display: 'Newsreader', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --max-width: 780px;
  --max-width-wide: 960px;
}

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Navigation  (shared dark-green bar)
   ========================================================================== */


/* ==========================================================================
   Breadcrumb
   ========================================================================== */
.breadcrumb {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 16px 24px 0;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.breadcrumb a { color: var(--color-text-secondary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 6px; opacity: 0.5; }

/* ==========================================================================
   Header
   ========================================================================== */
.guideline-header {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 32px 24px 0;
}
.guideline-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}
.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 4px;
}
.meta-badge.org { background: #EDE9FE; color: #5B21B6; }
.meta-badge.date { background: var(--color-tag-bg); color: var(--color-text-secondary); font-weight: 500; }
.meta-badge.type { background: #DBEAFE; color: #1E40AF; }
.meta-badge.status-accelerated { background: var(--color-warning-bg); color: var(--color-warning); }
.meta-badge.status-approved { background: #DCFCE7; color: #166534; }

.guideline-header h1 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 12px;
  max-width: var(--max-width);
}
.guideline-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: var(--max-width);
  margin-bottom: 20px;
}
.source-citation {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  border-left: 3px solid var(--color-accent);
  padding-left: 12px;
  margin-bottom: 8px;
  line-height: 1.6;
}
.source-citation a { color: var(--color-link-blue); }

/* ==========================================================================
   Verified Bar
   ========================================================================== */
.verified-bar {
  max-width: var(--max-width-wide);
  margin: 16px auto 0;
  padding: 0 24px;
}
.verified-bar-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.85rem;
  color: #166534;
}
.verified-bar-inner svg { flex-shrink: 0; }
.verified-count { font-weight: 700; }

/* ==========================================================================
   Page Layout
   ========================================================================== */
.page-layout {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 32px 24px 60px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 48px;
}
@media (max-width: 800px) {
  .page-layout { grid-template-columns: 1fr; gap: 32px; }
}

/* ==========================================================================
   Main Content Typography
   ========================================================================== */
.main-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 36px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  letter-spacing: -0.01em;
}
.main-content h2:first-child { border-top: none; margin-top: 0; padding-top: 0; }
.main-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 24px 0 8px;
}
.main-content p {
  margin-bottom: 14px;
  color: var(--color-text);
  font-size: 0.975rem;
}
.main-content a {
  color: var(--color-link-blue);
  text-decoration: underline;
  text-decoration-color: rgba(29, 78, 216, 0.3);
  text-underline-offset: 2px;
}

/* ==========================================================================
   Reference Badges
   ========================================================================== */
.ref-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  font-family: var(--font-body);
  background: #EFF6FF;
  color: #2563EB;
  border: 1px solid #BFDBFE;
  border-radius: 3px;
  padding: 1px 5px;
  margin-left: 3px;
  cursor: pointer;
  vertical-align: super;
  line-height: 1;
  text-decoration: none;
  transition: all 0.15s;
  position: relative;
  top: -1px;
}
.ref-badge:hover {
  background: #2563EB;
  color: white;
  border-color: #2563EB;
}

/* ==========================================================================
   Reference Modal
   ========================================================================== */
.ref-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.ref-overlay.active { display: flex; }

.ref-modal {
  background: var(--color-surface);
  border-radius: 12px;
  max-width: 560px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  position: relative;
  animation: refModalIn 0.2s ease-out;
}
@keyframes refModalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.ref-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 20px 24px 0;
  gap: 12px;
}
.ref-modal-header h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  flex: 1;
}
.ref-modal-close {
  width: 32px; height: 32px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-tag-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  transition: all 0.15s;
}
.ref-modal-close:hover { background: #FEE2E2; color: #DC2626; border-color: #FECACA; }

.ref-modal-body { padding: 16px 24px 24px; }

.ref-modal-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.ref-modal-meta-item {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 4px;
}
.ref-modal-meta-item.page { background: #DBEAFE; color: #1E40AF; }
.ref-modal-meta-item.section { background: #EDE9FE; color: #5B21B6; }
.ref-modal-meta-item.type { background: var(--color-accent-light); color: var(--color-accent-dark); }

.ref-our-claim {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 14px;
  line-height: 1.55;
  padding: 10px 14px;
  background: var(--color-tag-bg);
  border-radius: 6px;
  border-left: 3px solid var(--color-border-strong);
}
.ref-our-claim-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}
.ref-source-snippet {
  font-family: var(--font-display);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text);
  padding: 14px 16px;
  background: #FFFBEB;
  border-left: 3px solid #F59E0B;
  border-radius: 6px;
  font-style: italic;
}
.ref-source-snippet-label {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-warning);
  margin-bottom: 6px;
}
.ref-source-footer {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}
.ref-source-footer a { color: var(--color-link-blue); font-size: 0.78rem; }

/* ==========================================================================
   Key Numbers Grid
   ========================================================================== */
.key-numbers {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 24px;
  margin: 24px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.key-number { text-align: center; }
.key-number .value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  line-height: 1.1;
}
.key-number .label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
  line-height: 1.4;
}

/* ==========================================================================
   Tables
   ========================================================================== */
.threshold-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 0.9rem;
  background: var(--color-surface);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.threshold-table th {
  background: var(--color-accent-dark);
  color: white;
  font-weight: 600;
  padding: 10px 14px;
  text-align: left;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.threshold-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.threshold-table tr:last-child td { border-bottom: none; }
.threshold-table .recommend { background: #ECFDF5; }
.threshold-table .maybe { background: #FFFBEB; }
.threshold-table .not-rec { background: #FEF2F2; }
.zone-label {
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.zone-label.green { color: var(--color-accent-dark); }
.zone-label.amber { color: var(--color-warning); }
.zone-label.red { color: #B91C1C; }

/* ==========================================================================
   Callout Boxes
   ========================================================================== */
.callout {
  border-radius: 8px;
  padding: 18px 20px;
  margin: 20px 0;
  font-size: 0.925rem;
  line-height: 1.65;
}
.callout-title {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.callout.safety { background: #FEF2F2; border-left: 4px solid #DC2626; }
.callout.safety .callout-title { color: #B91C1C; }
.callout.tip { background: var(--color-accent-light); border-left: 4px solid var(--color-accent); }
.callout.tip .callout-title { color: var(--color-accent-dark); }
.callout.compare { background: #EDE9FE; border-left: 4px solid #7C3AED; }
.callout.compare .callout-title { color: #5B21B6; }
.callout.info { background: #EFF6FF; border-left: 4px solid #2563EB; }
.callout.info .callout-title { color: #1E40AF; }

/* ==========================================================================
   Internal Link Cards
   ========================================================================== */
.internal-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.internal-link-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 16px;
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.internal-link-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(14,124,95,0.08);
}
.internal-link-card .card-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 4px;
}
.internal-link-card .card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.35;
}
.internal-link-card .card-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-section { margin-top: 36px; }
.faq-item { border-bottom: 1px solid var(--color-border); padding: 16px 0; }
.faq-question {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  line-height: 1.4;
}
.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-question.open::after { content: '\2212'; }
.faq-answer {
  display: none;
  padding-top: 10px;
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}
.faq-answer.show { display: block; }

/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar { position: sticky; top: 74px; align-self: start; }

.sidebar-toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.sidebar-toc-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}
.sidebar-toc a {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 5px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: all 0.15s;
}
.sidebar-toc a:hover { color: var(--color-accent); border-left-color: var(--color-accent); }

.sidebar-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.sidebar-box-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.sidebar-box p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}
.sidebar-box a.sidebar-link {
  font-size: 0.85rem;
  color: var(--color-link-blue);
  text-decoration: none;
  font-weight: 500;
  display: block;
  padding: 4px 0;
}
.sidebar-box a.sidebar-link:hover { text-decoration: underline; }

.btn-calculator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-accent);
  color: white;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}
.btn-calculator:hover { background: var(--color-accent-dark); }

/* ==========================================================================
   Medical Disclaimer
   ========================================================================== */
.medical-disclaimer {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 24px 40px;
}
.medical-disclaimer-inner {
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}
.medical-disclaimer-inner a { color: var(--color-link-blue); }

/* ==========================================================================
   Disclaimer Bar
   ========================================================================== */
.disclaimer {
  background: var(--color-tag-bg);
  border-top: 1px solid var(--color-border);
  padding: 0 24px;
}
.disclaimer__inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 18px 0;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.disclaimer__inner strong { color: var(--color-text); }

/* ==========================================================================
   Newsletter
   ========================================================================== */
.newsletter {
  background: linear-gradient(135deg, #1a4a35 0%, #2d6a4f 60%, #1d5f6e 100%);
  padding: 56px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.newsletter::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.04) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(184,118,42,0.12) 0%, transparent 50%);
}
.newsletter__inner {
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}
.newsletter .section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #74c69d;
  margin-bottom: 12px;
}
.newsletter h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 10px;
}
.newsletter p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.65;
  margin-bottom: 24px;
}
.newsletter__form {
  max-width: 420px;
  margin: 0 auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
  background: #1a4a35;
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  line-height: 1.6;
}
footer a { color: #74c69d; text-decoration: none; }
footer a:hover { text-decoration: underline; }

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
}
.footer__top {
  padding: 48px 24px 36px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer__brand p {
  margin-top: 12px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}
footer .nav__logo { font-size: 18px; }

.footer__socials {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.2s;
}
.footer__social:hover { background: rgba(255,255,255,0.2); text-decoration: none; }

.footer__col h5 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 12px;
}
.footer__col ul { list-style: none; }
.footer__col li { margin-bottom: 7px; }
.footer__col a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.72);
  transition: color 0.15s;
}
.footer__col a:hover { color: #fff; text-decoration: none; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 600px) {
  .guideline-header h1 { font-size: 1.65rem; }
  .key-numbers { grid-template-columns: 1fr 1fr; }
  .internal-links { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .nav__mobile-toggle { display: block; }
  .footer__top { grid-template-columns: 1fr; gap: 28px; padding: 36px 20px 28px; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .newsletter { padding: 40px 20px; }
}