/* Nook21 — editorial, neutral, fast. System fonts only. */
:root {
  --bg: #fbfaf7;
  --paper: #ffffff;
  --ink: #1d1d1b;
  --ink-soft: #5a5953;
  --line: #e7e4dc;
  --tint: #f3f1ea;
  --accent: #2f5d8a;
  --cta: #d9622b;
  --cta-dark: #b84e1e;
  --radius: 12px;
  --max: 1120px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Charter, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.7 var(--sans); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; font-weight: 700; margin: 0 0 .5em; letter-spacing: -.005em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); }
h2 { font-size: clamp(1.45rem, 2.6vw, 1.9rem); margin-top: 1.6em; }
h3 { font-size: 1.2rem; margin-top: 1.2em; }
p { margin: 0 0 1em; }
code { background: var(--tint); padding: 1px 6px; border-radius: 4px; font-size: .9em; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 99; background: #fff; padding: 8px 12px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
.section { padding: 64px 0; }
.section h2:first-child, .section .eyebrow + h2 { margin-top: 0; }
.band { background: var(--tint); }
.eyebrow { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin-bottom: .5em; }
.muted { color: var(--ink-soft); }
.small { font-size: .88rem; }
.center { text-align: center; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(251,250,247,.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: var(--serif); font-size: 1.55rem; font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.logo span { color: var(--cta); }
.nav { display: flex; gap: 26px; }
.nav a { color: var(--ink); text-decoration: none; font-size: .95rem; font-weight: 500; }
.nav a:hover { color: var(--cta); }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.5rem; cursor: pointer; color: var(--ink); }

/* Buttons */
.btn { display: inline-block; background: var(--cta); color: #fff; padding: 14px 26px; border-radius: 8px; text-decoration: none; font-weight: 700; font-size: 1.02rem; border: 0; cursor: pointer; transition: background .15s; }
.btn:hover { background: var(--cta-dark); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn-ghost:hover { background: var(--ink); color: #fff; }
.cta-box { text-align: center; background: var(--paper); border: 1px solid var(--line); border-top: 4px solid var(--cta); border-radius: var(--radius); padding: 26px 20px; margin: 30px 0; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin: 26px 0 6px; }
.fine { font-size: .8rem; color: var(--ink-soft); margin: 12px 0 0; }

/* Hero */
.hero { padding: 52px 0 36px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: center; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 36em; }
.hero-img img { border-radius: 16px; aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 24px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px -22px rgba(0,0,0,.35); color: inherit; }
.card img { aspect-ratio: 16/9; object-fit: cover; width: 100%; }
.card-body { padding: 18px 20px 22px; }
.card h3 { margin: 6px 0 8px; font-size: 1.15rem; }
.card p { font-size: .94rem; margin: 0; }
.tag { display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); }
.cat-card { border-top: 4px solid var(--accent); }

/* Article */
.article { padding-top: 28px; }
.breadcrumb { font-size: .85rem; color: var(--ink-soft); margin-bottom: 14px; }
.breadcrumb a { color: var(--ink-soft); }
.byline { font-size: .9rem; color: var(--ink-soft); }
.byline a { color: var(--ink-soft); }
.disclosure { background: #fff7ec; border: 1px solid #f0d9b8; border-radius: 8px; padding: 12px 16px; font-size: .9rem; color: #5b4a33; margin: 16px 0 22px; }
.tldr { background: var(--paper); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; padding: 18px 22px; margin: 18px 0; }
.tldr-h { font-family: var(--sans); font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 6px; }
.tldr p:last-child { margin: 0; }
.verdict { margin-top: 10px; }
.article-hero img { border-radius: 16px; aspect-ratio: 21/9; object-fit: cover; width: 100%; margin: 14px 0 8px; }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li { margin-bottom: .4em; }
.prose table, table.facts, table.compare { width: 100%; border-collapse: collapse; font-size: .94rem; margin: 18px 0 26px; background: var(--paper); }
.prose th, .prose td, table.facts th, table.facts td, table.compare th, table.compare td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.facts th { width: 34%; color: var(--ink-soft); font-weight: 600; }
table.compare thead th, .prose thead th { background: var(--tint); font-weight: 700; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll table { min-width: 560px; }
.proscons { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 22px 0; }
.box { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; }
.box h3 { font-family: var(--sans); font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; margin: 0 0 8px; }
.box ul { padding-left: 1.1em; margin: 0; }
.box li { margin-bottom: .35em; font-size: .95rem; }
.pros h3 { color: #2e7d4f; }
.cons h3 { color: #b2452b; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { font-weight: 600; cursor: pointer; }
.faq details p { margin: 10px 0 0; color: var(--ink-soft); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 24px; }
.step { padding: 22px; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); }
.step h3 { margin-top: 0; }

/* Forms */
.form label { display: block; font-weight: 600; margin: 14px 0 6px; }
.form input, .form textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; font: inherit; background: var(--paper); }
.form textarea { min-height: 150px; }
.form .btn { margin-top: 18px; }
.hidden { display: none; }

/* Footer */
.site-footer { background: #1d1d1b; color: #cfccc4; padding: 52px 0 26px; margin-top: 70px; font-size: .92rem; }
.site-footer a { color: #cfccc4; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.site-footer h4 { color: #fff; font-size: 1rem; margin: 0 0 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer .logo { color: #fff; display: inline-block; margin-bottom: 10px; }
.footer-note { border-top: 1px solid #3b3a36; margin-top: 36px; padding-top: 18px; font-size: .8rem; color: #9d998f; }

@media (max-width: 860px) {
  body { font-size: 16.5px; }
  .hero-grid, .footer-grid, .proscons, .grid-2, .grid-3, .steps { grid-template-columns: 1fr; }
  .section { padding: 46px 0; }
  .article-hero img { aspect-ratio: 16/9; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg); flex-direction: column; padding: 16px 20px; gap: 14px; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
}

/* components — playbook/FUNNEL-PLAYBOOK.md */
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;margin:36px 0}
.split img{width:100%;height:auto;border-radius:10px;display:block}
.split.flip>figure{order:2}
.split>figure{margin:0}
.split h2,.split h3{margin-top:0}
@media (max-width:720px){.split{grid-template-columns:1fr;gap:14px}.split.flip>figure{order:0}}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}
.tiles figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.tiles img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block}
.tiles figcaption{padding:10px 12px;font-weight:700;font-size:.95rem}
.tiles figcaption span{display:block;font-weight:400;font-size:.85rem;color:var(--muted,#666)}
@media (max-width:720px){.tiles{grid-template-columns:repeat(2,1fr)}}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:28px 0;text-align:center}
.stats div{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:16px 8px}
.stats strong{display:block;font-size:1.6rem;line-height:1.1}
.stats span{font-size:.82rem;color:var(--muted,#666)}
@media (max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}
.sticky-cta{display:none}
@media (max-width:720px){.sticky-cta{display:block;position:fixed;left:0;right:0;bottom:0;z-index:50;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);border-top:1px solid #e5e5e5;box-shadow:0 -4px 14px rgba(0,0,0,.08)}.sticky-cta .btn{display:block;text-align:center}body:has(.sticky-cta){padding-bottom:76px}}
.lp .sticky-cta .btn{background:linear-gradient(180deg,#f79900,#f57700);border:2px solid #d31500}

.disclosure-line{font-size:.74rem;line-height:1.4;color:#8a8a8a;margin:10px 0 6px;text-align:center}
.disclosure-line a{color:inherit}