*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:17px;line-height:1.55;color:#0F172A;background:#FFFFFF;min-height:100vh}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#0EA5A0}
button,input,select,textarea{font:inherit}
h1,h2,h3,.display{font-family:"Manrope",Georgia,serif;font-weight:700;letter-spacing:-0.03em;line-height:1.12;margin:0 0 0.55em}
h1{font-size:clamp(2.05rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.45rem,2.6vw,2.1rem)}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
code,pre,.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:16px;background:#0EA5A0;color:#FFFFFF;padding:8px 12px;z-index:9}
.site-header{position:sticky;top:0;z-index:8;backdrop-filter:blur(16px);background:rgba(255,255,255,0.86);border-bottom:1px solid rgba(18,20,26,0.08)}
.header-bar{display:flex;align-items:center;gap:20px;min-height:68px}
.wordmark{display:flex;align-items:center;gap:10px;font-family:"Manrope",serif;font-weight:700;text-decoration:none;letter-spacing:-0.03em}
.mark{width:30px;height:30px;border-radius:9px;background:#0EA5A0;color:#FFFFFF;display:grid;place-items:center;font-size:14px;font-weight:700}
.desktop-nav{display:flex;gap:22px;margin-left:auto;font-size:14px}
.desktop-nav a.is-active{color:#0EA5A0}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:0.72rem 1.15rem;cursor:pointer;text-decoration:none;font-weight:600}
.btn-primary{background:#0EA5A0;color:#FFFFFF}
.btn-ghost{background:transparent;color:#0F172A;box-shadow:inset 0 0 0 1px rgba(18,20,26,0.08)}
.menu-toggle{display:none;width:42px;height:42px;border:0;background:transparent;color:#0F172A}
.menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{display:block;width:18px;height:2px;background:currentColor;position:relative}
.menu-toggle span:before,.menu-toggle span:after{content:"";position:absolute}
.menu-toggle span:before{top:-6px}
.menu-toggle span:after{top:6px}
.mobile-nav{display:none;flex-direction:column;padding:8px 0 18px;gap:10px}
.mobile-nav.open{display:flex}
.hero{padding:72px 0 36px;display:grid;grid-template-columns:1.1fr 0.9fr;gap:40px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:0.16em;font-size:12px;color:#0EA5A0;margin:0 0 12px;font-weight:600}
.lede{font-size:1.08rem;color:#475569;max-width:40rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.stage{background:#F8FAFC;border:1px solid rgba(18,20,26,0.08);border-radius:12px;padding:18px;min-height:280px;position:relative;overflow:hidden}
.band{padding:28px 0 56px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:#F8FAFC;border:1px solid rgba(18,20,26,0.08);border-radius:12px;padding:18px 18px 16px}
.step-num{display:inline-block;font-family:"IBM Plex Mono",monospace;color:#0EA5A0;margin-bottom:8px}
.page-hero{padding:64px 0 12px}
.toc{display:grid;grid-template-columns:220px 1fr;gap:32px}
.toc-nav{position:sticky;top:88px;display:flex;flex-direction:column;gap:8px;font-size:14px}
.doc-block{padding:8px 0 28px;border-top:1px solid rgba(18,20,26,0.08)}
.pre{background:#FFFFFF;color:#0F172A;border:1px solid rgba(18,20,26,0.08);border-radius:12px;padding:14px 16px;overflow:auto;font-size:13px;line-height:1.5}
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.price .amt{font-family:"Manrope",serif;font-size:1.7rem;margin:8px 0}
.site-footer{border-top:1px solid rgba(18,20,26,0.08);padding:36px 0 28px;margin-top:24px;font-size:14px;color:#475569}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:18px}
.foot-grid h4{margin:0 0 10px;color:#0F172A;font-size:13px;letter-spacing:0.08em;text-transform:uppercase}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin:0 0 6px}
.legal{margin-top:22px;font-size:13px}
.wave{height:64px;background:linear-gradient(90deg,transparent, #0EA5A0, transparent);opacity:0.35;filter:blur(8px);margin:18px 0}
.chip{font-family:"IBM Plex Mono",monospace;font-size:12px;padding:4px 8px;border-radius:999px;box-shadow:inset 0 0 0 1px rgba(18,20,26,0.08)}
.kv{display:grid;grid-template-columns:120px 1fr;gap:6px 12px;font-size:13px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,0.45);display:none;place-items:center;z-index:20}
.modal.open{display:grid}
.modal-card{background:#F8FAFC;color:#0F172A;padding:24px;border-radius:16px;width:min(420px,calc(100% - 32px))}
@media (max-width:900px){
.desktop-nav,.header-cta{display:none}
.menu-toggle{display:block;margin-left:auto}
.hero,.grid,.grid-3,.price-grid,.toc,.foot-grid{grid-template-columns:1fr}
}
/* site-helpers */
.header-mail{display:flex;flex-wrap:wrap;gap:8px 14px;padding:0 0 10px;font-size:12px}
.header-mail a{text-decoration:none;opacity:0.88}
.site-form{display:grid;gap:12px;max-width:28rem;margin:12px 0}
.site-form label{display:grid;gap:6px;font-size:14px}
.site-form input,.site-form textarea{background:transparent;color:inherit;border:1px solid rgba(127,127,127,0.35);border-radius:10px;padding:0.65rem 0.8rem}
.form-success{margin:12px 0}
.copy-wrap{position:relative}
.copy-wrap .pre{padding-right:5.5rem}
.copy-btn{position:absolute;top:8px;right:8px;font-size:12px;padding:0.35rem 0.75rem;border-radius:999px;border:0;cursor:pointer;background:transparent;color:inherit;box-shadow:inset 0 0 0 1px rgba(127,127,127,0.45)}
.price .btn{margin-top:12px}
.modal-card .site-form{max-width:none}