/* Built to Run - Style System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --white: #ffffff;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--slate-700);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-600); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--blue-700); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
  height: var(--header-height);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.site-logo {
  font-size: 1.125rem; font-weight: 700; color: var(--slate-800);
  display: flex; align-items: center; gap: 8px;
}
.site-logo span { color: var(--blue-600); }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { color: var(--slate-600); font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: var(--blue-600); }
.nav-cta {
  background: var(--blue-600); color: var(--white); padding: 10px 24px;
  border-radius: 8px; font-weight: 600; font-size: 0.9rem;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--blue-700); color: var(--white); }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle svg { width: 24px; height: 24px; color: var(--slate-700); }

/* Hero */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--slate-50) 0%, var(--white) 50%, #eff6ff 100%);
}
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-badge {
  display: inline-block; background: #eff6ff; color: var(--blue-600);
  padding: 6px 16px; border-radius: 100px; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 3.25rem; font-weight: 800; line-height: 1.1;
  color: var(--slate-900); margin-bottom: 20px;
}
.hero h1 em { font-style: normal; color: var(--blue-600); }
.hero p { font-size: 1.2rem; color: var(--slate-500); margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue-600); color: var(--white); padding: 14px 32px;
  border-radius: 10px; font-weight: 600; font-size: 1rem;
  transition: all 0.2s; border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--blue-700); color: var(--white); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.3); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--white); color: var(--slate-700); padding: 14px 32px;
  border-radius: 10px; font-weight: 600; font-size: 1rem;
  border: 2px solid var(--slate-200); transition: all 0.2s; cursor: pointer;
}
.btn-secondary:hover { border-color: var(--slate-300); transform: translateY(-1px); }
.hero-book {
  display: flex; justify-content: center; align-items: center;
}
.book-cover-wrapper {
  position: relative; width: 320px;
}
.book-cover {
  width: 100%; border-radius: 8px;
  box-shadow: 0 25px 50px rgba(0,0,0,0.15), 0 0 0 1px rgba(0,0,0,0.05);
  background: linear-gradient(135deg, var(--slate-800), var(--slate-900));
  aspect-ratio: 2/3; display: flex; flex-direction: column;
  justify-content: center; align-items: center; padding: 40px;
  color: var(--white); text-align: center;
}
.book-cover .cover-label { font-size: 0.75rem; letter-spacing: 3px; text-transform: uppercase; color: var(--blue-500); margin-bottom: 16px; font-weight: 600; }
.book-cover .cover-title { font-size: 1.75rem; font-weight: 800; line-height: 1.2; margin-bottom: 12px; }
.book-cover .cover-subtitle { font-size: 0.85rem; color: var(--slate-300); line-height: 1.5; margin-bottom: 24px; }
.book-cover .cover-author { font-size: 0.8rem; font-weight: 600; color: var(--blue-400); letter-spacing: 1px; }
.book-cover .cover-line { width: 40px; height: 3px; background: var(--blue-500); margin: 0 auto 16px; border-radius: 2px; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--slate-50); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: 2.25rem; font-weight: 800; color: var(--slate-900); margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--slate-500); max-width: 600px; margin: 0 auto; }

/* Stats */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 48px; }
.stat-item { text-align: center; }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--blue-600); }
.stat-label { font-size: 0.9rem; color: var(--slate-500); margin-top: 4px; }

/* Framework Preview */
.framework-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.framework-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: 12px;
  padding: 32px; transition: all 0.3s;
}
.framework-card:hover { border-color: var(--blue-600); box-shadow: 0 8px 24px rgba(37,99,235,0.1); transform: translateY(-2px); }
.framework-icon {
  width: 48px; height: 48px; background: #eff6ff; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; font-size: 1.25rem;
}
.framework-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--slate-800); margin-bottom: 8px; }
.framework-card p { font-size: 0.9rem; color: var(--slate-500); }

/* Testimonials */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: 12px;
  padding: 32px;
}
.testimonial-stars { color: #f59e0b; font-size: 1rem; margin-bottom: 12px; }
.testimonial-text { font-size: 0.95rem; color: var(--slate-600); font-style: italic; margin-bottom: 16px; line-height: 1.7; }
.testimonial-author { font-size: 0.85rem; font-weight: 600; color: var(--slate-800); }
.testimonial-role { font-size: 0.8rem; color: var(--slate-400); }

/* Chapters */
.chapter-list { display: flex; flex-direction: column; gap: 16px; }
.chapter-item {
  display: grid; grid-template-columns: 48px 1fr; gap: 20px;
  background: var(--white); border: 1px solid var(--slate-200); border-radius: 12px;
  padding: 24px; transition: all 0.2s; align-items: start;
}
.chapter-item:hover { border-color: var(--blue-600); box-shadow: 0 4px 16px rgba(37,99,235,0.08); }
.chapter-number {
  width: 48px; height: 48px; background: var(--slate-800); color: var(--white);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem; flex-shrink: 0;
}
.chapter-content h3 { font-size: 1.05rem; font-weight: 700; color: var(--slate-800); margin-bottom: 6px; }
.chapter-content p { font-size: 0.9rem; color: var(--slate-500); }

/* Author */
.author-section { display: grid; grid-template-columns: 300px 1fr; gap: 48px; align-items: start; }
.author-photo {
  width: 300px; height: 360px; background: linear-gradient(135deg, var(--slate-200), var(--slate-300));
  border-radius: 16px; display: flex; align-items: center; justify-content: center;
  font-size: 4rem; color: var(--slate-400);
}
.author-info h1 { font-size: 2rem; font-weight: 800; color: var(--slate-900); margin-bottom: 8px; }
.author-info .author-title { font-size: 1.1rem; color: var(--blue-600); font-weight: 600; margin-bottom: 24px; }
.author-info p { margin-bottom: 16px; color: var(--slate-600); }
.property-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.property-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border: 1px solid var(--slate-200); border-radius: 8px;
  font-size: 0.85rem; font-weight: 500; color: var(--slate-600);
  transition: all 0.2s;
}
.property-link:hover { border-color: var(--blue-600); color: var(--blue-600); }

/* Blog */
.blog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.blog-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: 12px;
  padding: 32px; transition: all 0.2s;
}
.blog-card:hover { border-color: var(--blue-600); box-shadow: 0 4px 16px rgba(37,99,235,0.08); transform: translateY(-2px); }
.blog-card .blog-date { font-size: 0.8rem; color: var(--slate-400); font-weight: 500; margin-bottom: 12px; }
.blog-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--slate-800); margin-bottom: 10px; line-height: 1.4; }
.blog-card h3 a { color: inherit; }
.blog-card h3 a:hover { color: var(--blue-600); }
.blog-card p { font-size: 0.9rem; color: var(--slate-500); margin-bottom: 16px; }
.blog-card .read-more { font-size: 0.85rem; font-weight: 600; color: var(--blue-600); }

/* Blog Post */
.post-header { padding: 140px 0 40px; background: var(--slate-50); }
.post-header h1 { font-size: 2.5rem; font-weight: 800; color: var(--slate-900); max-width: 720px; }
.post-meta { margin-top: 16px; font-size: 0.9rem; color: var(--slate-400); }
.post-content { max-width: 720px; padding: 48px 0 80px; }
.post-content h2 { font-size: 1.5rem; font-weight: 700; color: var(--slate-800); margin: 32px 0 16px; }
.post-content h3 { font-size: 1.2rem; font-weight: 700; color: var(--slate-800); margin: 24px 0 12px; }
.post-content p { margin-bottom: 16px; color: var(--slate-600); }
.post-content ul, .post-content ol { margin-bottom: 16px; padding-left: 24px; color: var(--slate-600); }
.post-content li { margin-bottom: 8px; }
.post-content blockquote {
  border-left: 4px solid var(--blue-600); padding: 16px 24px; margin: 24px 0;
  background: var(--slate-50); border-radius: 0 8px 8px 0;
  font-style: italic; color: var(--slate-600);
}

/* Framework Page */
.framework-full { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.framework-full-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: 16px;
  padding: 40px; transition: all 0.3s;
}
.framework-full-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
.framework-full-card .step-number {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; background: var(--blue-600); color: var(--white);
  border-radius: 50%; font-weight: 700; font-size: 0.9rem; margin-bottom: 16px;
}
.framework-full-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--slate-800); margin-bottom: 10px; }
.framework-full-card p { font-size: 0.9rem; color: var(--slate-500); margin-bottom: 12px; }
.framework-full-card ul { list-style: none; padding: 0; }
.framework-full-card li { font-size: 0.85rem; color: var(--slate-600); padding: 4px 0 4px 20px; position: relative; }
.framework-full-card li::before { content: ''; position: absolute; left: 0; top: 12px; width: 6px; height: 6px; background: var(--blue-600); border-radius: 50%; }

/* Resources */
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.resource-card {
  background: var(--white); border: 1px solid var(--slate-200); border-radius: 12px;
  padding: 32px; text-align: center; transition: all 0.2s;
}
.resource-card:hover { border-color: var(--blue-600); box-shadow: 0 4px 16px rgba(37,99,235,0.08); }
.resource-icon { font-size: 2rem; margin-bottom: 16px; }
.resource-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--slate-800); margin-bottom: 8px; }
.resource-card p { font-size: 0.85rem; color: var(--slate-500); margin-bottom: 16px; }
.resource-tag {
  display: inline-block; padding: 4px 12px; border-radius: 100px;
  font-size: 0.75rem; font-weight: 600; background: #eff6ff; color: var(--blue-600);
}

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--slate-700); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border: 1px solid var(--slate-200); border-radius: 8px;
  font-family: var(--font-sans); font-size: 0.9rem; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.contact-info h3 { font-size: 1.2rem; font-weight: 700; color: var(--slate-800); margin-bottom: 16px; }
.contact-info p { color: var(--slate-500); margin-bottom: 24px; }
.contact-detail { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.contact-detail-icon {
  width: 40px; height: 40px; background: #eff6ff; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, var(--slate-800), var(--slate-900));
  padding: 80px 0; text-align: center; color: var(--white);
}
.cta-banner h2 { font-size: 2.25rem; font-weight: 800; margin-bottom: 16px; }
.cta-banner p { font-size: 1.1rem; color: var(--slate-300); margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-primary { background: var(--blue-600); font-size: 1.1rem; padding: 16px 40px; }

/* Footer */
.site-footer { background: var(--slate-900); color: var(--slate-400); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; }
.footer-col h4 { color: var(--white); font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--slate-400); font-size: 0.85rem; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem;
}
.footer-properties { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-properties a { color: var(--slate-500); font-size: 0.8rem; }
.footer-properties a:hover { color: var(--white); }

/* Page Header */
.page-header {
  padding: 140px 0 48px;
  background: linear-gradient(135deg, var(--slate-50) 0%, var(--white) 100%);
}
.page-header h1 { font-size: 2.75rem; font-weight: 800; color: var(--slate-900); margin-bottom: 12px; }
.page-header p { font-size: 1.15rem; color: var(--slate-500); max-width: 600px; }

/* Responsive */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero p { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-book { order: -1; }
  .book-cover-wrapper { width: 240px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .framework-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .author-section { grid-template-columns: 1fr; }
  .author-photo { width: 200px; height: 240px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta-wrapper { display: none; }
  .mobile-toggle { display: block; }
  .nav-links.active {
    display: flex; flex-direction: column; position: absolute;
    top: var(--header-height); left: 0; right: 0;
    background: var(--white); padding: 24px; gap: 16px;
    border-bottom: 1px solid var(--slate-200);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 2.25rem; }
  .section { padding: 56px 0; }
  .section-header h2 { font-size: 1.75rem; }
  .framework-grid { grid-template-columns: 1fr; }
  .framework-full { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .resource-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .page-header h1 { font-size: 2rem; }
  .post-header h1 { font-size: 1.75rem; }
}

/* Expanded book guide */
.book-depth { padding: 80px 24px; background: color-mix(in srgb, var(--primary, #17233b) 4%, #fff); color: var(--text, #1d2533); }
.book-depth__inner { width: min(1120px, 100%); margin: 0 auto; }
.book-depth__eyebrow { display:block; margin-bottom:10px; font-size:.76rem; font-weight:800; letter-spacing:.16em; text-transform:uppercase; color:var(--accent, #9b6b24); }
.book-depth h2 { max-width:850px; margin:0 0 20px; font-size:clamp(2rem,4vw,3.35rem); line-height:1.08; color:var(--primary, #17233b); }
.book-depth__lead { max-width:880px; margin:0 0 18px; font-size:1.08rem; line-height:1.8; }
.book-depth__note { max-width:880px; margin:0 0 40px; padding:18px 20px; border-left:4px solid var(--accent, #9b6b24); background:#fff; line-height:1.7; }
.book-depth__grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin:28px 0 58px; }
.book-depth__card { padding:24px; border:1px solid rgba(20,30,50,.12); border-radius:14px; background:#fff; box-shadow:0 8px 24px rgba(20,30,50,.05); }
.book-depth__card h3 { margin:0 0 10px; font-size:1.2rem; color:var(--primary, #17233b); }
.book-depth__card p { margin:0 0 12px; line-height:1.7; }
.book-depth__card strong { display:block; font-size:.88rem; line-height:1.55; color:var(--accent, #8a5c16); }
.book-depth__subhead { margin:0 0 20px; font-size:clamp(1.55rem,3vw,2.25rem); color:var(--primary, #17233b); }
.book-depth__faq { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px 26px; margin-bottom:54px; }
.book-depth__faq div { padding:18px 0; border-top:1px solid rgba(20,30,50,.16); }
.book-depth__faq h3 { margin:0 0 8px; font-size:1.05rem; color:var(--primary, #17233b); }
.book-depth__faq p { margin:0; line-height:1.68; }
.book-depth__links { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; }
.book-depth__link { display:block; padding:22px; border-radius:12px; background:var(--primary, #17233b); color:#fff !important; text-decoration:none !important; }
.book-depth__link b { display:block; margin-bottom:8px; font-size:1.05rem; }
.book-depth__link span { display:block; color:rgba(255,255,255,.82); line-height:1.55; }
@media (max-width:760px){.book-depth{padding:60px 20px}.book-depth__grid,.book-depth__faq,.book-depth__links{grid-template-columns:1fr}}
.book-workshop { padding:80px 24px; background:#fff; color:var(--text, #1d2533); }
.book-workshop h2 { max-width:850px; margin:0 0 20px; font-size:clamp(2rem,4vw,3.15rem); line-height:1.08; color:var(--primary, #17233b); }
.book-workshop__grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; margin:34px 0 44px; }
.book-workshop__grid article { padding:24px; border-top:4px solid var(--accent, #9b6b24); background:color-mix(in srgb, var(--primary, #17233b) 4%, #fff); }
.book-workshop__grid span { display:block; margin-bottom:12px; font-size:.7rem; font-weight:800; letter-spacing:.16em; color:var(--accent, #8a5c16); }
.book-workshop__grid h3 { margin:0 0 10px; font-size:1.16rem; color:var(--primary, #17233b); }
.book-workshop__grid p,.book-workshop__plan p { margin:0; line-height:1.72; }
.book-workshop__plan { padding:28px; border-radius:14px; background:var(--primary, #17233b); color:#fff; }
.book-workshop__plan h3 { margin:0 0 16px; color:#fff; font-size:1.45rem; }
.book-workshop__plan p + p { margin-top:14px; }
@media (max-width:900px){.book-workshop__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){.book-depth,.book-workshop{padding:60px 20px}.book-depth__grid,.book-depth__faq,.book-depth__links,.book-workshop__grid{grid-template-columns:1fr}}
.tax-dossier{padding:80px 24px;background:color-mix(in srgb,var(--primary,#17233b) 7%,#fff)}
.tax-dossier h2{max-width:850px;margin:0 0 20px;font-size:clamp(2rem,4vw,3.15rem);line-height:1.08;color:var(--primary,#17233b)}
.tax-dossier__grid,.tax-dossier__issues{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:34px 0 54px}
.tax-dossier__grid article,.tax-dossier__issues article{padding:24px;border:1px solid rgba(20,30,50,.13);border-radius:14px;background:#fff}
.tax-dossier__grid span{display:block;margin-bottom:10px;font-size:.7rem;font-weight:800;letter-spacing:.14em;color:var(--accent,#8a5c16)}
.tax-dossier h3{margin:0 0 10px;color:var(--primary,#17233b)}
.tax-dossier article p{margin:0;line-height:1.72}.tax-dossier article p+p{margin-top:12px}
.tax-dossier__calendar{padding:30px;border-radius:14px;background:var(--primary,#17233b);color:#fff}.tax-dossier__calendar h3{color:#fff;font-size:1.45rem}.tax-dossier__calendar p{margin:0;line-height:1.72}.tax-dossier__calendar p+p{margin-top:14px}
@media (max-width:900px){.book-workshop__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){.book-depth,.book-workshop,.tax-dossier{padding:60px 20px}.book-depth__grid,.book-depth__faq,.book-depth__links,.book-workshop__grid,.tax-dossier__grid,.tax-dossier__issues{grid-template-columns:1fr}}
.book-depth__essay { max-width:920px; margin:26px 0 34px; columns:2; column-gap:34px; }
.book-depth__essay p { margin:0 0 18px; break-inside:avoid; line-height:1.78; }
@media(max-width:760px){.book-depth__essay{columns:1}}
/* Visual accessibility polish */
h1,h2,h3{text-wrap:balance}
::selection{background:rgba(37,99,235,.22);color:var(--slate-900)}
:where(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--blue-600);outline-offset:3px;border-radius:4px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* Visual refinement 2026-10: preserve the existing brand, layout and content. */
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
h1, h2, h3 { text-wrap: balance; }
p, blockquote { text-wrap: pretty; }
:where(a, button, input, select, textarea):focus-visible { outline: 2px solid currentColor; outline-offset: 4px; }
:where(article, .content, .article-content) a { text-underline-offset: .2em; text-decoration-thickness: 1px; }
:where(.hero-grid, .features-grid, .cards-grid, .grid, .footer-grid) > * { min-width: 0; }
@media (max-width: 600px) { input, select, textarea { font-size: 16px; } :where(.hero-cta, .hero-actions, .cta-actions) { flex-wrap: wrap; row-gap: 12px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0ms !important; transition-duration: .01ms !important; } }

.testimonial-card, .blog-card, .book-depth__card, .resource-card { box-shadow: 0 1px 2px rgba(15,23,42,.035), 0 10px 30px rgba(15,23,42,.055); }

.btn-primary, .btn-secondary { transition: background-color .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }

h1 { letter-spacing: -.025em; } h2 { letter-spacing: -.018em; } .hero-subtitle { line-height: 1.75; }
.book-cover, .hero-book img { box-shadow: 0 4px 10px rgba(0,0,0,.12), 0 24px 48px rgba(0,0,0,.24); }