:root{
  --bg:#ffffff;
  --text:#111827;
  --muted:#475569;
  --border:#d1d5db;
  --soft:#f8fafc;
  --soft2:#eef2ff;
  --soft3:#ecfeff;
  --accent:#1d4ed8;
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;border:1px solid var(--border);border-radius:16px;background:#fff}
code,.inline-code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#f3f4f6;
  border-radius:6px;
  padding:.15rem .4rem;
  font-size:.92em;
}
pre.code-block{
  background:#0f172a;
  color:#e2e8f0;
  padding:1.1rem 1.2rem;
  border-radius:16px;
  overflow:auto;
  border:1px solid #1e293b;
}
pre.code-block code{background:transparent;padding:0;color:inherit}
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  max-width:var(--max);margin:0 auto;padding:0 1.25rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:68px;
}
.brand{
  font-family:Georgia,"Times New Roman",serif;
  font-size:1.35rem;font-weight:700;color:var(--text);
}
.nav{display:flex;gap:1rem;flex-wrap:wrap}
.nav a{color:var(--muted);font-weight:600}
.nav a.active,.nav a:hover{color:var(--text);text-decoration:none}
.page{
  max-width:var(--max);margin:0 auto;padding:2rem 1.25rem 4rem;
}
.hero{
  padding:3.5rem 0 2rem;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:2rem;align-items:start;
}
.hero h1{
  font-family:Georgia,"Times New Roman",serif;
  font-size:3rem;line-height:1.08;margin:0 0 1rem;
}
.hero p.lead{font-size:1.2rem;color:var(--muted);max-width:52rem;margin:0 0 1.1rem}
.kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.kpi,.card,.mini-card{
  border:1px solid var(--border);border-radius:18px;background:#fff;
  box-shadow:0 1px 0 rgba(17,24,39,.02);
}
.kpi{padding:1rem 1.05rem}
.kpi .num{font-size:1.8rem;font-weight:800}
.kpi .label{color:var(--muted)}
.actions{display:flex;gap:.85rem;flex-wrap:wrap;margin-top:1rem}
.button{
  display:inline-flex;align-items:center;gap:.5rem;
  border:1px solid var(--border);border-radius:999px;
  padding:.78rem 1rem;background:#fff;color:var(--text);font-weight:700;
}
.button.primary{background:var(--text);color:#fff;border-color:var(--text)}
.button:hover{text-decoration:none;transform:translateY(-1px)}
.section{padding:1rem 0 0}
.section h2{
  font-family:Georgia,"Times New Roman",serif;
  font-size:2rem;margin:0 0 .3rem;
}
.section .sub{color:var(--muted);margin:0 0 1.25rem}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.card{padding:1rem 1rem 1.05rem}
.card h3,.mini-card h3{font-size:1.1rem;margin:.15rem 0 .55rem}
.card p,.mini-card p,.eyebrow{color:var(--muted)}
.card .meta,.post-meta,.doc-meta{font-size:.9rem;color:var(--muted)}
.mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}
.mini-card{padding:1rem}
.layout{
  display:grid;grid-template-columns:280px minmax(0,1fr) 240px;gap:1.5rem;
}
.sidebar,.toc{
  align-self:start;position:sticky;top:92px;
  border:1px solid var(--border);border-radius:18px;background:#fff;padding:1rem;
}
.sidebar h3,.toc h3{font-size:1rem;margin:.1rem 0 .75rem}
.sidebar .group{margin-bottom:1rem}
.sidebar .group-title{font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:.6rem 0}
.sidebar a{display:block;padding:.45rem .55rem;border-radius:10px;color:var(--muted);font-size:.95rem}
.sidebar a:hover,.sidebar a.current{background:var(--soft);color:var(--text);text-decoration:none}
.toc a{display:block;padding:.28rem 0;color:var(--muted);font-size:.92rem}
.content{
  min-width:0;
}
article h1{
  font-family:Georgia,"Times New Roman",serif;
  font-size:2.6rem;line-height:1.08;margin:.1rem 0 .5rem
}
article h2{
  font-family:Georgia,"Times New Roman",serif;
  font-size:1.75rem;margin:2rem 0 .5rem
}
article h3{
  font-size:1.15rem;margin:1.2rem 0 .4rem
}
article p,article li{font-size:1.05rem}
article ul,article ol{padding-left:1.3rem}
article hr{border:none;border-top:1px solid var(--border);margin:2rem 0}
article .content-table{width:100%;border-collapse:collapse;margin:1.2rem 0}
article .content-table th, article .content-table td{border:1px solid var(--border);padding:.7rem .8rem;text-align:left}
article .content-table th{background:var(--soft)}
.content-quote{margin:1rem 0;padding:.9rem 1rem;border-left:4px solid var(--accent);background:var(--soft);color:var(--text)}
.post-header,.doc-header{
  padding-bottom:1rem;border-bottom:1px solid var(--border);margin-bottom:1.5rem
}
.breadcrumbs{font-size:.92rem;color:var(--muted);margin:0 0 .8rem}
.breadcrumbs a{color:var(--muted)}
.tag-list{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:.8rem}
.tag{
  display:inline-block;padding:.25rem .55rem;border-radius:999px;border:1px solid var(--border);
  color:var(--muted);font-size:.83rem;background:#fff
}
.search-box{
  width:100%;padding:.92rem 1rem;border:1px solid var(--border);
  border-radius:14px;font:inherit
}
.archive-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.post-list{display:grid;grid-template-columns:1fr;gap:1rem}
.post-item{
  border:1px solid var(--border);border-radius:18px;padding:1rem 1rem 1.05rem;background:#fff
}
.visual-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.visual-card{
  border:1px solid var(--border);border-radius:18px;background:#fff;padding:1rem
}
.visual-card img{margin-bottom:.75rem}
.callout{
  border:1px solid var(--border);border-left:4px solid var(--accent);
  background:var(--soft);border-radius:18px;padding:1rem 1.1rem;margin:1rem 0
}
/* ── Handwritten margin notes & annotations ── */
@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;600;700&display=swap');

.margin-note{
  font-family:'Caveat',cursive;
  font-size:1.15rem;
  line-height:1.35;
  color:#b45309;
  background:linear-gradient(135deg,#fefce8 0%,#fef9c3 100%);
  border:1px solid #fde68a;
  border-radius:4px 12px 12px 4px;
  padding:.65rem .9rem .65rem .75rem;
  margin:1.2rem 0;
  position:relative;
  transform:rotate(-.3deg);
  box-shadow:1px 2px 6px rgba(0,0,0,.06);
}
.margin-note::before{
  content:'✎';
  position:absolute;
  left:-.45rem;top:-.45rem;
  font-size:1rem;
  background:#fef08a;
  border-radius:50%;
  width:1.5rem;height:1.5rem;
  display:flex;align-items:center;justify-content:center;
  border:1px solid #fde68a;
  transform:rotate(12deg);
}

.field-note{
  background:#f0fdf4;
  border:1px solid #bbf7d0;
  border-left:3px solid #22c55e;
  border-radius:10px;
  padding:.85rem 1rem;
  margin:1.4rem 0;
  font-size:.97rem;
}
.field-note-label{
  font-family:'Caveat',cursive;
  font-size:1.1rem;
  font-weight:700;
  color:#15803d;
  margin-bottom:.3rem;
}

mark.hl{
  background:linear-gradient(180deg,transparent 55%,#fef08a 55%,#fef08a 90%,transparent 90%);
  padding:0 .15rem;
  border-radius:2px;
}
mark.hl-blue{
  background:linear-gradient(180deg,transparent 55%,#bfdbfe 55%,#bfdbfe 90%,transparent 90%);
}
mark.hl-green{
  background:linear-gradient(180deg,transparent 55%,#bbf7d0 55%,#bbf7d0 90%,transparent 90%);
}

.takeaway-box{
  background:#eff6ff;
  border:1px solid #bfdbfe;
  border-radius:14px;
  padding:1rem 1.1rem;
  margin:1.5rem 0;
}
.takeaway-box .takeaway-title{
  font-family:'Caveat',cursive;
  font-size:1.2rem;
  font-weight:700;
  color:#1d4ed8;
  margin-bottom:.3rem;
}

.footer{
  border-top:1px solid var(--border);padding:2rem 1.25rem 3rem;color:var(--muted)
}
.footer-inner{max-width:var(--max);margin:0 auto}
.footer-inner a{color:var(--muted)}
.footer-inner a:hover{color:var(--text)}
/* ── Homepage comparison table ── */
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
  margin:1.5rem 0;
  font-size:.95rem;
}
.compare-table th,.compare-table td{
  padding:.85rem 1rem;
  text-align:left;
  border-bottom:1px solid #f1f5f9;
}
.compare-table thead th{
  background:#0f172a;
  color:#f8fafc;
  font-weight:700;
  font-size:.95rem;
  border-bottom:none;
}
.compare-table thead th:first-child{background:#0f172a;color:#94a3b8}
.compare-table thead th.hl-col{background:#1e3a5f}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:nth-child(even){background:#fafbfc}
.compare-table td:first-child{font-weight:600;color:#334155;white-space:nowrap}
.compare-table .yes{color:#16a34a;font-weight:700}
.compare-table .no{color:#dc2626;font-weight:600}
.compare-table .partial{color:#d97706;font-weight:600}
.compare-table .hl-col{background:rgba(37,99,235,.04)}
.compare-table thead .hl-col{background:#1e40af}

/* ── Positioning callout ── */
.position-callout{
  background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);
  color:#f8fafc;
  border-radius:20px;
  padding:2.5rem 2.5rem;
  margin:2rem 0;
}
.position-callout h2{color:#f8fafc;margin:0 0 .6rem}
.position-callout p{color:#94a3b8;margin:0 0 .8rem}
.position-callout strong{color:#60a5fa}
.position-callout .highlight-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1rem;
  margin-top:1.5rem;
}
.position-callout .hl-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;
  padding:1.1rem;
}
.position-callout .hl-item h4{
  color:#60a5fa;font-size:1rem;margin:0 0 .3rem;
}
.position-callout .hl-item p{font-size:.9rem;color:#94a3b8;margin:0}

/* ── Built-for badge row ── */
.built-for{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1rem;
  margin:1.5rem 0;
}
.built-for-card{
  border:2px solid var(--border);
  border-radius:18px;
  padding:1.5rem;
  position:relative;
}
.built-for-card.primary{
  border-color:#2563eb;
  background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 100%);
}
.built-for-card .badge{
  position:absolute;top:-10px;right:16px;
  background:#2563eb;color:#fff;
  font-size:.75rem;font-weight:700;
  padding:.25rem .65rem;border-radius:999px;
  letter-spacing:.03em;
}
.built-for-card h3{margin:0 0 .3rem}
.built-for-card p{color:var(--muted);margin:0;font-size:.95rem}

@media (max-width:1100px){
  .layout{grid-template-columns:240px minmax(0,1fr)}
  .toc{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:800px){
  .hero{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .card-grid,.mini-grid,.archive-list,.visual-grid{grid-template-columns:1fr}
  .hero h1{font-size:2.3rem}
  .compare-table{font-size:.82rem}
  .compare-table th,.compare-table td{padding:.6rem .5rem}
  .position-callout{padding:1.5rem}
  .position-callout .highlight-row{grid-template-columns:1fr}
  .built-for{grid-template-columns:1fr}
}