*{box-sizing:border-box}
:root{--ink:#0E1726;--body:#3B4556;--muted:#475467;--line:#E4E7EC;--soft:#F4F6F8;--accent:#0F5E5A;--accent-dark:#0B4744;--mint:#7FD1C8}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6;font-size:17px}
h1,h2,h3{font-family:"Space Grotesk",Inter,system-ui,sans-serif;line-height:1.15;letter-spacing:-.01em}
a{color:var(--accent)}a:hover{color:var(--accent-dark)}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.eyebrow{margin:0;font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}

/* Header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding-top:16px;padding-bottom:16px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.logo-mark{width:40px;height:40px;border-radius:8px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:14px;letter-spacing:.04em}
.logo-name{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:19px}
.site-nav{display:flex;flex-wrap:wrap;align-items:center;gap:6px 24px;font-size:15px;font-weight:500}
.site-nav a{color:var(--ink);text-decoration:none}
.site-nav a:hover,.site-nav a.on{color:var(--accent)}
.site-nav a.on{text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px}
.site-nav a.nav-cta{background:var(--accent);color:#fff;padding:11px 18px;border-radius:6px;text-decoration:none}
.site-nav a.nav-cta:hover{background:var(--accent-dark);color:#fff}

/* Buttons */
.btn{display:inline-flex;align-items:center;min-height:44px;background:var(--accent);color:#fff;padding:12px 22px;border-radius:6px;text-decoration:none;font-weight:600;margin:4px 8px 4px 0;border:1.5px solid var(--accent)}
.btn:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff}
.btn.alt,.btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn.alt:hover,.btn.ghost:hover{background:var(--ink);color:#fff}

/* Inner pages (existing content) */
main{max-width:860px;margin:0 auto;padding:56px 28px 40px}
main h1{font-size:44px;margin:0 0 14px;letter-spacing:-.02em}
main h2{font-size:28px;margin:40px 0 10px}
main h3{font-size:21px}
.meta{color:var(--muted);font-size:14px}
.lede{font-size:20px;color:var(--body);max-width:720px}
.hero{padding:0 0 8px}
.post p,.post li{color:var(--body)}
.post .ai{font-style:italic}
.list{list-style:none;padding:0;margin:28px 0}
.list li{border-top:1px solid var(--line);padding:22px 0}
.list li h3{margin:0 0 4px;font-size:22px}
.list li h3 a{color:var(--ink);text-decoration:none}
.list li h3 a:hover{color:var(--accent)}
.list li p{margin:4px 0;color:var(--body)}
.book{display:grid;grid-template-columns:200px 1fr;gap:32px;border:1px solid var(--line);padding:28px;border-radius:12px;margin:24px 0}
.book img{width:100%;border-radius:4px;box-shadow:0 10px 24px rgba(14,23,38,.18)}
.stars{color:#B45309}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:24px 0}
.card,.box{border:1px solid var(--line);padding:24px;border-radius:12px;background:#fff}
.card h3{margin:6px 0}
.card .tag{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.steps{counter-reset:s;list-style:none;padding:0;margin:20px 0}
.steps li{counter-increment:s;border:1px solid var(--line);border-radius:12px;padding:18px 22px 18px 70px;margin:12px 0;position:relative;color:var(--body)}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:22px;top:17px;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:22px;color:var(--accent)}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:28px 0}
.box ul{margin:8px 0 0;padding-left:20px}
.cta{background:var(--ink);color:#fff;padding:32px;border-radius:12px;margin:44px 0}
.cta h2{color:#fff}.cta p{color:#D0D5DD}
.cta a:not(.btn){color:var(--mint)}
.cta .btn{background:#fff;color:var(--ink);border-color:#fff}
.cta .btn:hover{background:var(--mint);border-color:var(--mint);color:var(--ink)}
.cta .btn.alt{background:transparent;color:#fff;border-color:#fff}
.cta .btn.alt:hover{background:#fff;color:var(--ink)}

/* Footer */
.site-footer{background:var(--ink);color:#D0D5DD;font-size:14px;margin-top:40px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between;padding-top:44px;padding-bottom:44px}
.site-footer strong{display:block;font-family:"Space Grotesk",sans-serif;font-size:17px;color:#fff;margin-bottom:4px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center}
.site-footer a{color:#D0D5DD}.site-footer a:hover{color:#fff}
.site-footer .legal{flex-basis:100%;color:#98A2B3}

@media(max-width:800px){
  body{font-size:16px}
  main h1{font-size:34px}
  .grid,.cols,.book{grid-template-columns:1fr}
  .book img{max-width:200px}
}