:root{--ink:#111827;--muted:#5f6876;--line:#e5e7eb;--soft:#f6f7fb;--brand:#5b4bdb;--brand2:#2563eb;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);line-height:1.7;background:#fff}
a{color:#3157c8;text-underline-offset:3px}.wrap{max-width:var(--max);margin:auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.navbar{min-height:70px;display:flex;align-items:center;gap:20px}.brand{font-weight:900;font-size:1.16rem;color:var(--ink);text-decoration:none;white-space:nowrap}.brand span{color:var(--brand)}
.desktop-nav{display:flex;align-items:center;gap:18px;margin-left:auto}.desktop-nav a{color:#374151;text-decoration:none;font-size:.93rem}
.header-cta,.btn{display:inline-block;border-radius:10px;padding:11px 15px;text-decoration:none;font-weight:800}.header-cta,.btn.primary{background:linear-gradient(90deg,var(--brand),var(--brand2));color:white}
.mobile-cta{display:none;margin-left:auto}.hamburger{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;width:42px;height:42px;font-size:22px;cursor:pointer}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:8px 22px 16px}.mobile-menu.open{display:block}.mobile-menu a{display:block;padding:10px 0;color:#374151;text-decoration:none}
.hero{padding:66px 0 44px;background:linear-gradient(135deg,#f7f7ff,#f3f8ff)}.eyebrow{font-size:.78rem;font-weight:850;letter-spacing:.09em;text-transform:uppercase;color:var(--brand)}
h1{font-size:clamp(2.15rem,4.7vw,3.75rem);line-height:1.08;letter-spacing:-.035em;margin:.25em 0}.lede{font-size:1.17rem;color:var(--muted);max-width:820px}
.layout{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:48px;padding:46px 22px 72px}.article h2{font-size:1.72rem;line-height:1.25;margin-top:2em}.article h3{font-size:1.22rem;margin-top:1.65em}.article p{margin:1em 0}.article ul{padding-left:22px}.article li{margin:.5em 0}
.card,.note,.cta,.toc{border:1px solid var(--line);border-radius:16px;padding:22px;background:#fff}.note,.toc{background:var(--soft)}.cta{background:#111827;color:white;margin:30px 0}.cta h2,.cta h3{margin-top:0}.cta .btn{background:#fff;color:#111827}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid .card h2,.grid .card h3{margin-top:0}
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.95rem}th,td{text-align:left;vertical-align:top;padding:12px 10px;border-bottom:1px solid var(--line)}th{background:var(--soft)}
.sidebar{align-self:start}.sidebox{border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:18px}.sidebox h2{font-size:1.05rem;margin-top:0}.sidebox a:not(.btn){display:block;margin:.55em 0}.sidebox .btn{width:100%;text-align:center}
.disclosure{font-size:.9rem;color:var(--muted);border-left:3px solid var(--brand);padding-left:14px}.experience{background:#f7f7ff;border-radius:14px;padding:18px;margin:24px 0}
footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:.9rem}.footerlinks{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:10px}.footerlinks a{color:#374151}
@media(max-width:900px){.desktop-nav,.desktop-cta{display:none}.mobile-cta,.hamburger{display:inline-block}.navbar{gap:10px}.brand{font-size:1.02rem}.mobile-cta{font-size:.82rem;padding:9px 11px}.layout{grid-template-columns:1fr;gap:26px}.sidebar{order:2}.grid{grid-template-columns:1fr}.hero{padding:48px 0 34px}}
@media(max-width:410px){.brand span{display:none}.brand:after{content:" CRM Lab"}.mobile-cta{padding:8px 9px;font-size:.76rem}}