/* WhatIsLeukemia.net — Main Stylesheet */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-900: #1e3a6e;
  --blue-800: #1d4ed8;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --red-700: #b91c1c;
  --red-600: #dc2626;
  --red-50: #fef2f2;
  --red-100: #fee2e2;
  --red-200: #fecaca;
  --green-600: #16a34a;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --radius: 0.75rem;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.04);
}

body { font-family: var(--font); color: var(--slate-800); background: var(--white); line-height: 1.65; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.2; color: var(--slate-900); }
ul,ol { padding-left: 1.5rem; }
li { margin-bottom: .4rem; }
p { margin-bottom: 1rem; }

/* ─── UTILITIES ─────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
.container-narrow { max-width: 800px; margin: 0 auto; padding: 0 1.25rem; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.visually-hidden { clip:rect(0 0 0 0); clip-path:inset(50%); height:1px; overflow:hidden; position:absolute; white-space:nowrap; width:1px; }

/* ─── HEADER ─────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--slate-200);
  box-shadow: var(--shadow);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; }
.logo-icon {
  width: 38px; height: 38px;
  background: var(--blue-600);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.logo-icon svg { width: 22px; height: 22px; fill: none; stroke: white; stroke-width: 2; stroke-linecap: round; }
.logo-text { font-size: 1.25rem; font-weight: 800; color: var(--slate-900); letter-spacing: -.02em; }
.logo-text span { color: var(--blue-600); }

.nav-desktop { display: flex; align-items: center; gap: 2rem; list-style: none; padding: 0; margin: 0; }
.nav-desktop a { font-weight: 600; font-size: .9rem; color: var(--slate-600); transition: color .15s; }
.nav-desktop a:hover { color: var(--blue-600); text-decoration: none; }

.nav-dropdown { position: relative; }
.nav-dropdown-btn {
  display: flex; align-items: center; gap: .3rem;
  font-weight: 600; font-size: .9rem; color: var(--slate-600);
  background: none; border: none; cursor: pointer;
  padding: 1.5rem 0; font-family: var(--font);
  transition: color .15s;
}
.nav-dropdown-btn:hover { color: var(--blue-600); }
.nav-dropdown-btn svg { width: 14px; height: 14px; transition: transform .2s; }
.nav-dropdown:hover .nav-dropdown-btn svg { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute; top: 100%; left: -1rem;
  min-width: 220px; background: var(--white);
  border: 1px solid var(--slate-200); border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(6px);
  transition: opacity .15s, transform .15s, visibility .15s;
  z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
.nav-dropdown-menu a {
  display: block; padding: .6rem 1rem; font-size: .875rem;
  color: var(--slate-700); font-weight: 500;
  transition: background .1s, color .1s;
}
.nav-dropdown-menu a:hover { background: var(--blue-50); color: var(--blue-600); text-decoration: none; }

.hamburger { display: none; background: none; border: none; cursor: pointer; padding: .5rem; color: var(--slate-700); }
.hamburger svg { width: 24px; height: 24px; }

.mobile-menu {
  display: none; position: fixed; inset: 68px 0 0; background: var(--white);
  overflow-y: auto; padding: 1.5rem; z-index: 90;
  border-top: 1px solid var(--slate-200);
}
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; padding: .75rem 0; border-bottom: 1px solid var(--slate-100); font-size: 1rem; font-weight: 600; color: var(--slate-800); }
.mobile-menu .mobile-section-title { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--slate-400); margin: 1rem 0 .5rem; font-weight: 700; }

/* ─── BREADCRUMB ──────────────────────────────── */
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: .4rem; font-size: .8rem; color: var(--slate-500); margin-bottom: 1.25rem; }
.breadcrumb a { color: var(--slate-500); font-weight: 500; }
.breadcrumb a:hover { color: var(--blue-600); text-decoration: none; }
.breadcrumb-sep { color: var(--slate-300); }
.breadcrumb span { color: var(--slate-700); font-weight: 600; }

/* ─── HERO ────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, #1e3a6e 0%, #1d4ed8 55%, #3b82f6 100%);
  color: var(--white); text-align: center; padding: 5rem 1.25rem 4rem;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25);
  border-radius: 2rem; padding: .4rem 1rem; font-size: .8rem; font-weight: 600;
  letter-spacing: .03em; color: rgba(255,255,255,.95); margin-bottom: 1.5rem;
  position: relative;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; letter-spacing: -.03em; color: var(--white); margin-bottom: 1.25rem; position: relative; line-height: 1.1; }
.hero p { font-size: clamp(1rem, 2vw, 1.2rem); max-width: 680px; margin: 0 auto 2rem; opacity: .9; position: relative; line-height: 1.6; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; position: relative; }
.btn-primary { background: var(--white); color: var(--blue-700); padding: .875rem 1.75rem; border-radius: 10px; font-weight: 700; font-size: .95rem; transition: transform .15s, box-shadow .15s; display: inline-flex; align-items: center; gap: .5rem; border: none; cursor: pointer; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); text-decoration: none; color: var(--blue-700); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,.5); padding: .875rem 1.75rem; border-radius: 10px; font-weight: 700; font-size: .95rem; transition: background .15s, border-color .15s; display: inline-flex; align-items: center; gap: .5rem; }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.8); text-decoration: none; color: var(--white); }
.btn-blue { background: var(--blue-600); color: var(--white); padding: .75rem 1.5rem; border-radius: 8px; font-weight: 700; font-size: .9rem; transition: background .15s; display: inline-flex; align-items: center; gap: .4rem; border: none; cursor: pointer; }
.btn-blue:hover { background: var(--blue-700); text-decoration: none; color: var(--white); }

/* ─── SECTIONS ───────────────────────────────── */
.section { padding: 4rem 1.25rem; }
.section-alt { background: var(--slate-50); }
.section-title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; letter-spacing: -.02em; margin-bottom: .5rem; }
.section-subtitle { color: var(--slate-600); font-size: 1.05rem; margin-bottom: 2.5rem; }
.section-header { text-align: center; margin-bottom: 2.5rem; }

/* ─── CATEGORY CARDS ─────────────────────────── */
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.category-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius);
  padding: 1.5rem 1.25rem; text-align: center; transition: all .2s;
  text-decoration: none; display: flex; flex-direction: column; align-items: center; gap: .75rem;
  box-shadow: var(--shadow);
}
.category-card:hover { border-color: var(--blue-300, #93c5fd); box-shadow: var(--shadow-md); transform: translateY(-2px); text-decoration: none; }
.category-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: .25rem; }
.category-card h3 { font-size: 1rem; color: var(--slate-900); font-weight: 700; }
.category-card p { font-size: .8rem; color: var(--slate-500); line-height: 1.4; }

/* ─── ARTICLE CARDS ──────────────────────────── */
.article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.article-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: all .2s;
  display: flex; flex-direction: column; position: relative; cursor: pointer;
}
.article-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.article-card:hover h3 { color: var(--blue-600); }
.article-card-thumb { height: 160px; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; }
.article-card-body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.article-card-silo { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--blue-600); margin-bottom: .4rem; }
.article-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--slate-900); margin-bottom: .5rem; line-height: 1.3; transition: color .15s; }
.article-card p { font-size: .85rem; color: var(--slate-600); flex: 1; line-height: 1.5; }
.article-card a.read-more { display: inline-flex; align-items: center; gap: .3rem; color: var(--blue-600); font-weight: 600; font-size: .85rem; margin-top: 1rem; }
.article-card a.read-more::after { content: ''; position: absolute; inset: 0; }
.article-card a.read-more:hover { text-decoration: none; }

/* ─── ARTICLE LAYOUT ─────────────────────────── */
.article-header { background: var(--white); border-bottom: 1px solid var(--slate-200); padding: 3rem 1.25rem 2.5rem; }
.article-header h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 900; letter-spacing: -.03em; margin-bottom: .75rem; line-height: 1.15; }
.article-header .lead { font-size: 1.125rem; color: var(--slate-600); line-height: 1.65; margin-bottom: 1.25rem; }
.article-meta { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; font-size: .8rem; color: var(--slate-500); padding-top: 1rem; border-top: 1px solid var(--slate-100); }
.article-meta span { display: flex; align-items: center; gap: .35rem; font-weight: 500; }

.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; padding: 2.5rem 0 4rem; align-items: start; }
.article-content { min-width: 0; }
.article-content h2 { font-size: 1.5rem; font-weight: 800; color: var(--slate-900); margin: 2rem 0 .75rem; letter-spacing: -.02em; }
.article-content h3 { font-size: 1.15rem; font-weight: 700; color: var(--slate-800); margin: 1.5rem 0 .5rem; }
.article-content p { line-height: 1.75; color: var(--slate-700); margin-bottom: 1rem; }
.article-content ul, .article-content ol { color: var(--slate-700); margin-bottom: 1rem; line-height: 1.65; }
.article-content li { margin-bottom: .5rem; }
.article-content strong { color: var(--slate-900); }
.article-content hr { border: none; border-top: 1px solid var(--slate-200); margin: 2rem 0; }

.article-sidebar { position: sticky; top: 88px; }

/* ─── SIDEBAR WIDGETS ────────────────────────── */
.widget { background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.5rem; box-shadow: var(--shadow); }
.widget h4 { font-size: .95rem; font-weight: 700; color: var(--slate-900); margin-bottom: 1rem; padding-bottom: .5rem; border-bottom: 1px solid var(--slate-100); }
.toc-list { list-style: none; padding: 0; }
.toc-list li a { display: block; padding: .35rem 0; font-size: .875rem; color: var(--slate-600); border-left: 2px solid var(--slate-200); padding-left: .75rem; transition: all .15s; }
.toc-list li a:hover { color: var(--blue-600); border-color: var(--blue-500); text-decoration: none; }
.related-list { list-style: none; padding: 0; }
.related-list li { border-bottom: 1px solid var(--slate-100); }
.related-list li:last-child { border: none; }
.related-list a { display: block; padding: .6rem 0; font-size: .875rem; font-weight: 600; color: var(--slate-700); line-height: 1.4; }
.related-list a:hover { color: var(--blue-600); text-decoration: none; }
.related-list .excerpt { font-size: .75rem; color: var(--slate-500); font-weight: 400; display: block; margin-top: .1rem; line-height: 1.3; }

/* ─── CALLOUT BOXES ──────────────────────────── */
.summary-box { background: var(--blue-50); border: 1px solid var(--blue-100); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 2rem; }
.summary-box h3 { font-size: 1rem; font-weight: 700; color: #1e40af; margin-bottom: .75rem; display: flex; align-items: center; gap: .5rem; }
.summary-box ul { color: #1e40af; padding-left: 1.25rem; margin: 0; }
.summary-box li { font-size: .9rem; margin-bottom: .4rem; }

.seek-care-box { background: var(--red-50); border: 2px solid var(--red-200); border-radius: var(--radius); padding: 1.5rem; margin: 2rem 0; }
.seek-care-box h3 { color: var(--red-700); font-size: 1.1rem; font-weight: 800; margin-bottom: .75rem; display: flex; align-items: center; gap: .5rem; }
.seek-care-box p, .seek-care-box li { color: #991b1b; font-size: .9rem; }
.seek-care-box ul { margin: .5rem 0 0; padding-left: 1.25rem; }

.disclaimer-box { background: var(--blue-50); border-left: 4px solid var(--blue-600); border-radius: 0 var(--radius) var(--radius) 0; padding: 1.25rem 1.5rem; margin: 2rem 0; }
.disclaimer-box .label { font-weight: 700; color: #1e40af; font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; display: block; margin-bottom: .4rem; }
.disclaimer-box p { font-size: .875rem; color: #1e3a8a; line-height: 1.6; margin: 0; }

.questions-box { background: var(--slate-50); border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.5rem; margin: 2rem 0; }
.questions-box h3 { font-size: 1.1rem; font-weight: 700; color: var(--slate-900); margin-bottom: 1rem; }
.questions-box ol { color: var(--slate-700); }
.questions-box li { font-size: .9rem; margin-bottom: .6rem; }

/* ─── FAQ ────────────────────────────────────── */
.faq-section { margin: 2.5rem 0; }
.faq-section h2 { font-size: 1.5rem; font-weight: 800; color: var(--slate-900); margin-bottom: 1.25rem; }
.faq-item { background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius); margin-bottom: .75rem; box-shadow: var(--shadow); overflow: hidden; }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; cursor: pointer; background: none; border: none; text-align: left; font-family: var(--font); gap: 1rem; }
.faq-question h3 { font-size: 1rem; font-weight: 700; color: var(--slate-900); line-height: 1.3; }
.faq-question .icon { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--blue-50); display: flex; align-items: center; justify-content: center; transition: transform .2s, background .15s; }
.faq-question .icon svg { width: 12px; height: 12px; stroke: var(--blue-600); fill: none; stroke-width: 2.5; transition: transform .2s; }
.faq-item.open .faq-question .icon { background: var(--blue-600); }
.faq-item.open .faq-question .icon svg { stroke: white; transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 1.25rem 1.25rem; }
.faq-item.open .faq-answer { display: block; }
.faq-answer p { font-size: .9rem; color: var(--slate-600); line-height: 1.7; }

/* ─── TRUST / EDITORIAL ──────────────────────── */
.trust-section { background: linear-gradient(135deg, #1e3a6e 0%, #1d4ed8 100%); color: var(--white); padding: 4rem 1.25rem; }
.trust-section h2 { color: var(--white); font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: .75rem; }
.trust-section p { opacity: .9; max-width: 680px; margin: 0 auto 2.5rem; text-align: center; }
.trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.trust-card { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius); padding: 1.5rem; }
.trust-card .icon { font-size: 2rem; margin-bottom: .75rem; }
.trust-card h3 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: .5rem; }
.trust-card p { font-size: .875rem; opacity: .85; line-height: 1.5; }

/* ─── HUB PAGE ───────────────────────────────── */
.hub-header { background: var(--white); border-bottom: 1px solid var(--slate-200); padding: 3rem 1.25rem 2.5rem; }
.hub-header h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 900; letter-spacing: -.03em; margin-bottom: .5rem; }
.hub-header .lead { font-size: 1.1rem; color: var(--slate-600); line-height: 1.6; max-width: 680px; }
.hub-intro { font-size: 1rem; color: var(--slate-700); line-height: 1.75; margin: 2rem 0; }
.hub-intro h2 { font-size: 1.3rem; font-weight: 700; margin: 1.5rem 0 .5rem; }

/* ─── CORE PAGES ─────────────────────────────── */
.core-header { background: var(--white); border-bottom: 1px solid var(--slate-200); padding: 3rem 1.25rem 2.5rem; }
.core-header h1 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 900; }
.prose { background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 2rem 2.5rem; box-shadow: var(--shadow); line-height: 1.75; }
.prose h2 { font-size: 1.4rem; margin: 1.75rem 0 .5rem; color: var(--slate-900); }
.prose h3 { font-size: 1.1rem; margin: 1.25rem 0 .4rem; color: var(--slate-800); }
.prose p, .prose li { color: var(--slate-700); }
.prose ul, .prose ol { margin-bottom: 1rem; }
.prose strong { color: var(--slate-900); }
.prose a { color: var(--blue-600); }
.prose a:hover { text-decoration: underline; }

/* ─── FOOTER ─────────────────────────────────── */
.site-footer { background: var(--slate-900); color: var(--slate-400); }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; padding: 4rem 1.25rem 3rem; }
.footer-brand .logo-text { color: var(--white); font-size: 1.25rem; }
.footer-brand .logo-text span { color: var(--blue-500); }
.footer-brand p { font-size: .85rem; line-height: 1.6; margin-top: 1rem; max-width: 280px; }
.footer-col h4 { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--white); font-weight: 700; margin-bottom: 1.25rem; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: .75rem; }
.footer-col a { font-size: .875rem; color: var(--slate-400); transition: color .15s; }
.footer-col a:hover { color: var(--blue-400, #60a5fa); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--slate-800); padding: 1.5rem 1.25rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: .8rem; }
.footer-disclaimer { background: var(--slate-800); padding: 1rem 1.25rem; text-align: center; font-size: .8rem; color: var(--slate-400); line-height: 1.5; }
.footer-disclaimer a { color: var(--slate-300); }

/* ─── COOKIE BANNER ──────────────────────────── */
#cookie-banner {
  position: fixed; bottom: 0; inset-inline: 0; z-index: 999;
  background: var(--white); border-top: 1px solid var(--slate-200);
  box-shadow: 0 -4px 12px rgba(0,0,0,.08); padding: 1rem 1.25rem;
}
.cookie-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; max-width: 1200px; margin: 0 auto; flex-wrap: wrap; }
.cookie-inner p { font-size: .875rem; color: var(--slate-600); }
.cookie-inner a { color: var(--blue-600); }
#cookie-accept { background: var(--blue-600); color: var(--white); border: none; padding: .625rem 1.25rem; border-radius: 8px; font-weight: 700; font-size: .875rem; cursor: pointer; white-space: nowrap; }
#cookie-accept:hover { background: var(--blue-700); }

/* ─── 404 ────────────────────────────────────── */
.page-404 { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 3rem 1.25rem; }
.page-404 h1 { font-size: 6rem; font-weight: 900; color: var(--blue-100); line-height: 1; }
.page-404 h2 { font-size: 1.75rem; color: var(--slate-900); margin: .5rem 0 1rem; }
.page-404 p { color: var(--slate-600); max-width: 480px; margin: 0 auto 1.5rem; }
.page-404 .nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; margin-top: 2rem; }
.page-404 .nav-links a { background: var(--slate-100); color: var(--slate-700); padding: .5rem 1rem; border-radius: 6px; font-size: .875rem; font-weight: 600; }
.page-404 .nav-links a:hover { background: var(--blue-50); color: var(--blue-600); text-decoration: none; }

/* ─── SITEMAP ────────────────────────────────── */
.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.sitemap-section { background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.5rem; }
.sitemap-section h2 { font-size: 1rem; font-weight: 800; color: var(--blue-700); margin-bottom: 1rem; border-bottom: 1px solid var(--slate-100); padding-bottom: .6rem; }
.sitemap-section ul { list-style: none; padding: 0; }
.sitemap-section li a { font-size: .875rem; color: var(--slate-600); display: block; padding: .3rem 0; }
.sitemap-section li a:hover { color: var(--blue-600); }
.sitemap-section .hub-link { font-weight: 700; color: var(--slate-800); font-size: .9rem; }

/* ─── RESPONSIVE ─────────────────────────────── */
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 700px) {
  .nav-desktop { display: none; }
  .hamburger { display: block; }
  .footer-main { grid-template-columns: 1fr; }
  .hero { padding: 3.5rem 1.25rem 3rem; }
  .article-layout { padding: 1.5rem 0 3rem; }
  .prose { padding: 1.25rem 1.25rem; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.75rem; }
  .article-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ─── LAZY LOAD ──────────────────────────────── */
img.lazy { opacity: 0; transition: opacity .3s; }
img.lazy.loaded { opacity: 1; }
.img-placeholder { background: linear-gradient(135deg, var(--blue-100) 0%, var(--blue-50) 100%); display: flex; align-items: center; justify-content: center; font-size: 3rem; }

/* === AUTHOR TRUST BAR === */
.author-trust-bar { background: var(--slate-50); border-bottom: 1px solid var(--slate-200); padding: .875rem 0; }
.author-trust-inner { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.author-trust-person { display: flex; align-items: center; gap: .75rem; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--blue-100); color: var(--blue-700); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.author-avatar.reviewer { background: #dcfce7; color: #166534; }
.author-avatar.updated  { background: #fff7ed; color: #c2410c; }
.author-name { font-size: .85rem; font-weight: 700; color: var(--slate-900); }
.author-role { font-size: .75rem; color: var(--slate-500); }
.author-trust-divider { width: 1px; height: 36px; background: var(--slate-200); flex-shrink: 0; }
@media (max-width: 700px) { .author-trust-inner { gap: 1rem; } .author-trust-divider { display: none; } }

/* === LONG-FORM INTRO === */
.intro-section { background: var(--white); }
.intro-content h2 { font-size: 1.4rem; font-weight: 800; color: var(--slate-900); margin: 2rem 0 .6rem; letter-spacing: -.02em; padding-top: 1.5rem; border-top: 1px solid var(--slate-100); }
.intro-content h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.intro-content p { line-height: 1.8; color: var(--slate-700); margin-bottom: 1rem; }
.intro-content ul { color: var(--slate-700); line-height: 1.75; margin-bottom: 1rem; }
.intro-content li { margin-bottom: .5rem; }
.intro-content strong { color: var(--slate-900); }
.intro-content a { color: var(--blue-600); font-weight: 500; }
.intro-content a:hover { text-decoration: underline; }

/* === MOST IMPORTANT GUIDES === */
.guides-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.guides-col { display: flex; flex-direction: column; gap: 1.5rem; }
.guides-group { background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.guides-group-header { display: flex; align-items: center; gap: .6rem; background: var(--slate-900); color: var(--white); padding: .75rem 1.25rem; font-size: .85rem; font-weight: 700; letter-spacing: .03em; }
.guides-list { list-style: none; padding: 0; margin: 0; }
.guides-list li { border-bottom: 1px solid var(--slate-100); }
.guides-list li:last-child { border: none; }
.guides-list a { display: block; padding: .65rem 1.25rem; font-size: .875rem; color: var(--slate-700); font-weight: 500; transition: background .1s, color .1s; }
.guides-list a:hover { background: var(--blue-50); color: var(--blue-600); text-decoration: none; }
.guides-list li:last-child a { font-weight: 700; color: var(--blue-600); }
@media (max-width: 700px) { .guides-grid { grid-template-columns: 1fr; } }

/* === TRUST ICON SVG === */
.trust-icon-wrap { width: 52px; height: 52px; border-radius: 14px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; margin-bottom: .75rem; color: white; }

/* === RELATED GUIDES LIST === */
.related-guides-list { list-style: none; padding: 0; margin: .75rem 0 1.5rem; }
.related-guides-list li { border-bottom: 1px solid var(--slate-100); }
.related-guides-list li:last-child { border: none; }
.related-guides-list a { display: block; padding: .55rem 0; color: var(--blue-600); font-weight: 500; font-size: .9rem; }
.related-guides-list a:hover { text-decoration: underline; }