:root{--bg: #f7f5f0;--text: #1f1f1f;--muted: #666666;--line: #ded8cc;--accent: #ce2928;--card: #ffffff}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--accent)}a:hover{color:var(--accent)}.site-header{padding:20px;border-bottom:1px solid var(--line);background:var(--bg)}.nav{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.brand{font-weight:700;letter-spacing:.04em}.nav-links{display:flex;gap:28px;font-size:14px}.nav-links a{opacity:.7}.nav-links a:hover{opacity:1}.nav-toggle{display:none;width:48px;height:48px;padding:0;align-items:center;justify-content:center;border:1px solid var(--line);background:transparent;color:var(--text);cursor:pointer}.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.nav-toggle-icon,.nav-toggle-icon:before,.nav-toggle-icon:after{display:block;width:24px;height:2px;background:currentColor}.nav-toggle-icon{position:relative}.nav-toggle-icon:before,.nav-toggle-icon:after{content:"";position:absolute;left:0}.nav-toggle-icon:before{top:-7px}.nav-toggle-icon:after{top:7px}.nav-toggle[aria-expanded=true] .nav-toggle-icon{background:transparent}.nav-toggle[aria-expanded=true] .nav-toggle-icon:before{top:0;transform:rotate(45deg)}.nav-toggle[aria-expanded=true] .nav-toggle-icon:after{top:0;transform:rotate(-45deg)}.hero{max-width:1080px;margin:0 auto;padding:96px 20px 72px}.eyebrow{color:var(--muted);font-size:14px;text-transform:uppercase;letter-spacing:.12em;margin-bottom:18px}h1{font-size:clamp(42px,7vw,76px);line-height:.98;max-width:900px;margin:0 0 28px}h2{font-size:30px;line-height:1.15;margin:0 0 14px}p{font-size:18px;max-width:720px}.section{max-width:1080px;margin:0 auto;padding:56px 20px;border-top:1px solid var(--line)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}.card{background:var(--card);border:1px solid var(--line);padding:24px;min-height:160px}.card p{font-size:16px}.contact-block{background:#1f1f1f;color:#fff;padding:56px 20px}.contact-inner{max-width:1080px;margin:0 auto}.contact-block a{color:#fff}footer{max-width:1080px;margin:0 auto;padding:28px 20px;color:var(--muted);font-size:14px}@media(max-width:760px){.nav{flex-wrap:wrap}.nav-links{display:none;flex:0 0 100%;flex-direction:column;gap:0;margin-top:16px;padding-top:12px;border-top:1px solid var(--line);font-size:18px}.nav-links.is-open{display:flex}.nav-links a{padding:10px 0}.nav-toggle{display:inline-flex}.grid{grid-template-columns:1fr}.hero{padding-top:64px}}.logo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:30px;align-items:center}.logo-grid img{max-width:140px;max-height:60px;object-fit:contain;opacity:.7;filter:grayscale(100%);margin:auto}.logo-grid img:hover{opacity:.7;filter:grayscale(100%)}@media(max-width:760px){.logo-grid{grid-template-columns:repeat(2,1fr)}}.brand-logo{display:inline-flex;align-items:center;gap:12px;border-bottom:0}.brand-logo img{width:72px;height:72px;object-fit:contain}.brand-logo span{font-size:24px;font-weight:400;letter-spacing:.02em}.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:32px}.book{text-decoration:none;border-bottom:0;color:inherit}.book img{width:100%;height:auto;margin-bottom:16px;border:1px solid var(--line)}.book h3{margin:0 0 8px;font-size:18px}.book p{font-size:14px;color:var(--muted)}.book:hover img{transform:translateY(-4px);transition:.2s ease}@media(max-width:760px){.book-grid{grid-template-columns:1fr}}@media(max-width:760px){.site-header{padding:20px}.hero{padding-top:72px}}.hero a{font-weight:600}.card-link{display:block;color:inherit;border-bottom:0;transition:transform .2s ease,border-color .2s ease}.card-link:hover{transform:translateY(-3px);border-color:var(--accent);color:inherit}a:hover{text-decoration-thickness:1px;text-underline-offset:.25em}.thinking-card__link,.archive-link a,.link-grid a,.back-link,.article-footer a{border-bottom:none;box-shadow:none}.article-footer a{display:inline-block;width:auto;padding-bottom:0}.back-link{margin-bottom:3rem}.return-link{display:inline-block;width:auto;align-self:flex-start}.copy-link-button{appearance:none;background:transparent;border:0;border-bottom:1px solid var(--accent, #d33);border-radius:0;padding:0 0 .2rem;color:inherit;font:inherit;cursor:pointer}.copy-link-button:hover{color:var(--accent, #d33)}.copy-link-button:focus-visible{outline:1px solid currentColor;outline-offset:4px}
