/* ===== CUBE23 — deep slate / bone / signal-green · clinical, contract-driven ===== */
:root{
  --slate:#0c1116;
  --slate-2:#121922;
  --slate-3:#19222d;
  --bone:#f4f5f2;
  --paper:#fbfbf9;
  --ink:#0c1116;
  --ink-soft:#48525d;
  --ink-dim:#838d98;
  --line:rgba(12,17,22,.12);
  --line-d:rgba(255,255,255,.1);
  --green:#16b87a;
  --green-bright:#1fd991;
  --green-soft:#d6f4e7;
  --amber:#e3a93c;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:'Inter',system-ui,sans-serif;font-weight:400;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--green);color:#04130c}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:'Inter',sans-serif;font-weight:650;line-height:1.08;letter-spacing:-.025em}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--green);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--green)}
.eyebrow.on-dark{color:var(--green-bright)}.eyebrow.on-dark::before{background:var(--green-bright)}

/* NAV */
header.nav{position:fixed;top:0;left:0;right:0;z-index:200;transition:.3s;border-bottom:1px solid transparent}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:16px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav.scrolled{background:rgba(251,251,249,.9);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav.on-dark:not(.scrolled){border-bottom-color:var(--line-d)}
.logo{display:flex;align-items:center;gap:10px;font-family:'JetBrains Mono',monospace;font-weight:600;font-size:19px;letter-spacing:-.01em;color:var(--ink)}
.logo .mark{width:22px;height:22px;flex-shrink:0}
.nav.on-dark:not(.scrolled) .logo{color:#fff}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:14px;font-weight:500;color:var(--ink-soft);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav.on-dark:not(.scrolled) .nav-links a{color:rgba(255,255,255,.72)}
.nav.on-dark:not(.scrolled) .nav-links a:hover,.nav.on-dark:not(.scrolled) .nav-links a.active{color:#fff}
.btn{font-family:'Inter';font-weight:600;font-size:14px;padding:11px 20px;border-radius:5px;transition:.2s;cursor:pointer;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;border:1.5px solid transparent}
.btn-primary{background:var(--green);color:#04130c}
.btn-primary:hover{background:var(--green-bright)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.nav.on-dark:not(.scrolled) .btn-ghost{color:#fff;border-color:rgba(255,255,255,.3)}
.nav.on-dark:not(.scrolled) .btn-ghost:hover{border-color:#fff}
.menu-toggle{display:none;background:none;border:none;color:var(--ink);font-size:23px;cursor:pointer;z-index:210}
.nav.on-dark:not(.scrolled) .menu-toggle{color:#fff}

/* HERO */
.hero{position:relative;background:var(--slate);color:#fff;padding:158px 0 96px;overflow:hidden;border-bottom:1px solid var(--line-d)}
.hero .mesh{position:absolute;inset:0;z-index:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.07) 1px,transparent 0);background-size:26px 26px;mask:radial-gradient(110% 80% at 85% 5%,#000,transparent 70%);-webkit-mask:radial-gradient(110% 80% at 85% 5%,#000,transparent 70%)}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,62px);font-weight:680;letter-spacing:-.03em;margin:22px 0 22px;line-height:1.04}
.hero h1 .accent{color:var(--green-bright)}
.hero .sub{font-size:clamp(16px,1.6vw,20px);color:rgba(255,255,255,.78);max-width:58ch;margin-bottom:28px;font-weight:400}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap;align-items:center}
.hero .trust{margin-top:22px;display:flex;flex-direction:column;gap:6px}
.hero .trust span{font-family:'JetBrains Mono';font-size:12.5px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:8px}
.hero .trust span::before{content:"";width:5px;height:5px;background:var(--green);border-radius:50%}

/* code panel — signature element */
.codepanel{background:#0a0e13;border:1px solid var(--line-d);border-radius:8px;overflow:hidden;font-family:'JetBrains Mono',monospace;box-shadow:0 24px 60px rgba(0,0,0,.4)}
.codepanel .cp-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line-d);background:rgba(255,255,255,.02)}
.codepanel .cp-bar i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.18);display:block}
.codepanel .cp-bar .cp-title{margin-left:8px;font-size:11.5px;color:rgba(255,255,255,.5);letter-spacing:.04em}
.codepanel pre{padding:18px;font-size:12.5px;line-height:1.85;color:#cdd6e0;overflow-x:auto;margin:0}
.codepanel .k{color:#7fa0ff}/* key */
.codepanel .s{color:var(--green-bright)}/* string */
.codepanel .c{color:#5d6b7a}/* comment */
.codepanel .ok{color:var(--green-bright);font-weight:600}

/* page hero */
.phero{position:relative;background:var(--slate);color:#fff;padding:158px 0 80px;overflow:hidden;border-bottom:1px solid var(--line-d)}
.phero .mesh{position:absolute;inset:0;z-index:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.07) 1px,transparent 0);background-size:26px 26px;mask:radial-gradient(110% 90% at 80% 0%,#000,transparent 72%);-webkit-mask:radial-gradient(110% 90% at 80% 0%,#000,transparent 72%)}
.phero-inner{position:relative;z-index:2;max-width:860px}
.phero h1{font-size:clamp(32px,4.6vw,56px);font-weight:680;letter-spacing:-.03em;margin:20px 0 18px}
.phero h1 .accent{color:var(--green-bright)}
.phero .sub{font-size:clamp(16px,1.5vw,19px);color:rgba(255,255,255,.78);max-width:64ch;font-weight:400}

/* sections */
.section{padding:94px 0}
.section.alt{background:var(--bone)}
.section.dark{background:var(--slate);color:#fff}
.sec-head{max-width:740px;margin-bottom:50px}
.sec-head.center{margin:0 auto 50px;text-align:center}
.sec-head h2{font-size:clamp(28px,3.8vw,46px);font-weight:660;letter-spacing:-.025em;margin:14px 0 16px}
.sec-head p{color:var(--ink-soft);font-size:17px}
.section.dark .sec-head p{color:rgba(255,255,255,.72)}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}
.no-js .reveal{opacity:1;transform:none}

/* pillars */
.pillars3{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.section.dark .pillars3{border-color:var(--line-d)}
.pillar3{padding:34px 30px;border-right:1px solid var(--line)}
.section.dark .pillar3{border-right-color:var(--line-d)}
.pillar3:last-child{border-right:none}
.pillar3 .pn{font-family:'JetBrains Mono';font-size:13px;color:var(--green);font-weight:500}
.pillar3 h3{font-size:20px;margin:13px 0 11px;font-weight:640}
.pillar3 p{color:var(--ink-soft);font-size:14.5px}
.section.dark .pillar3 p{color:rgba(255,255,255,.7)}

/* four-step flow / table */
.tbl{width:100%;border-collapse:collapse;border:1px solid var(--line);background:#fff}
.section.dark .tbl{border-color:var(--line-d);background:transparent}
.tbl th,.tbl td{text-align:left;padding:15px 18px;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:top}
.section.dark .tbl th,.section.dark .tbl td{border-bottom-color:var(--line-d)}
.tbl th{font-family:'JetBrains Mono';font-weight:500;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-dim);background:var(--bone)}
.section.dark .tbl th{background:var(--slate-2);color:rgba(255,255,255,.55)}
.tbl td:first-child{font-weight:600;white-space:nowrap}
.tbl tr:last-child td{border-bottom:none}
.tbl td .sub2{color:var(--ink-soft);font-weight:400}
.section.dark .tbl td{color:rgba(255,255,255,.82)}
.section.dark .tbl td .sub2{color:rgba(255,255,255,.6)}

/* cards grid */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--line)}
.section.dark .cards{border-color:var(--line-d)}
.cards.c4{grid-template-columns:repeat(2,1fr)}
.card{padding:30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark .card{border-right-color:var(--line-d);border-bottom-color:var(--line-d)}
.card:nth-child(2n){border-right:none}
.card .verb{font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--green);font-weight:500}
.card h4{font-size:18px;margin:8px 0 10px;font-weight:630}
.card p{color:var(--ink-soft);font-size:14.5px}
.section.dark .card p{color:rgba(255,255,255,.72)}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line)}
.section.dark .metrics{border-color:var(--line-d)}
.metric{padding:32px 24px;border-right:1px solid var(--line)}
.section.dark .metric{border-right-color:var(--line-d)}
.metric:last-child{border-right:none}
.metric .mv{font-family:'JetBrains Mono';font-weight:600;font-size:clamp(26px,3vw,38px);color:var(--green);letter-spacing:-.02em}
.section.dark .metric .mv{color:var(--green-bright)}
.metric .ml{font-size:13.5px;color:var(--ink-soft);margin-top:10px;line-height:1.45}
.section.dark .metric .ml{color:rgba(255,255,255,.75)}
.metric .mu{font-family:'JetBrains Mono';font-size:10.5px;color:var(--ink-dim);margin-top:8px;letter-spacing:.08em;text-transform:uppercase}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.split .copy h2{font-size:clamp(25px,3.2vw,40px);margin-bottom:15px;font-weight:650}
.split .copy p{color:var(--ink-soft);font-size:16px;margin-bottom:14px}
.section.dark .split .copy p{color:rgba(255,255,255,.72)}

/* persona block */
.persona{border:1px solid var(--line);padding:34px;background:#fff}
.persona .ptag{font-family:'JetBrains Mono';font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--green);margin-bottom:12px}
.persona h3{font-size:21px;margin-bottom:14px;font-weight:640}
.persona .pain{color:var(--ink-soft);font-size:14.5px;padding:14px 16px;background:var(--bone);border-left:2px solid var(--ink-dim);margin-bottom:18px}
.persona .changes{list-style:none;display:flex;flex-direction:column;gap:9px}
.persona .changes li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px}
.persona .changes .tk{flex-shrink:0;width:18px;height:18px;border:1.5px solid var(--green);border-radius:3px;display:flex;align-items:center;justify-content:center;color:var(--green);font-size:10px;font-weight:700;margin-top:2px}

/* moats */
.moats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.moat{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.moat:nth-child(3n){border-right:none}
.moat .mn{font-family:'JetBrains Mono';font-size:13px;color:var(--green);font-weight:600}
.moat h4{font-size:17px;margin:10px 0 9px;font-weight:630}
.moat p{color:var(--ink-soft);font-size:14px}

/* stack layers */
.layers{border:1px solid var(--line);background:#fff}
.section.dark .layers{border-color:var(--line-d);background:transparent}
.layer{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:14px 22px;border-bottom:1px solid var(--line)}
.section.dark .layer{border-bottom-color:var(--line-d)}
.layer:last-child{border-bottom:none}
.layer .lname{font-weight:600;font-size:15px}
.section.dark .layer .lname{color:#fff}
.layer .ldesc{color:var(--ink-soft);font-size:14px}
.section.dark .layer .ldesc{color:rgba(255,255,255,.65)}
.layer .lp{font-family:'JetBrains Mono';font-size:11px;font-weight:600;padding:4px 9px;border-radius:4px;background:var(--green-soft);color:#0a7048}
.section.dark .layer .lp{background:rgba(22,184,122,.18);color:var(--green-bright)}

/* catalog chips */
.catalog{display:flex;flex-wrap:wrap;gap:8px}
.opchip{font-family:'JetBrains Mono';font-size:12px;padding:8px 13px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink-soft);display:inline-flex;align-items:center;gap:8px}
.opchip .pr{font-size:9.5px;font-weight:600;color:var(--green);letter-spacing:.05em}

/* callout */
.callout{border-left:3px solid var(--green);padding:18px 24px;background:var(--bone);font-size:16px;font-weight:500}
.section.dark .callout{background:var(--slate-2)}

/* CTA */
.cta{background:var(--slate);color:#fff;padding:78px 0;text-align:center}
.cta h2{font-size:clamp(28px,4vw,46px);font-weight:660;letter-spacing:-.025em;margin-bottom:15px}
.cta p{font-size:17px;color:rgba(255,255,255,.74);max-width:54ch;margin:0 auto 26px}
.cta .cbtns{display:flex;gap:13px;justify-content:center;flex-wrap:wrap}
.cta .fine{margin-top:18px;font-family:'JetBrains Mono';font-size:12px;color:rgba(255,255,255,.5)}

/* footer */
footer{background:var(--slate);color:#fff;padding:62px 0 30px;border-top:1px solid var(--line-d)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;margin-bottom:42px}
.foot-grid .logo{color:#fff}
.foot-grid h5{font-family:'JetBrains Mono';font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.45);margin-bottom:15px}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot-grid a{color:rgba(255,255,255,.74);font-size:14px;transition:.2s}
.foot-grid a:hover{color:var(--green-bright)}
.foot-about p{color:rgba(255,255,255,.62);font-size:14px;margin-top:13px;max-width:34ch}
.foot-about .strap{margin-top:12px;font-family:'JetBrains Mono';font-size:12px;color:var(--green-bright);letter-spacing:.02em}
.foot-about .by{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.45)}
.foot-about .by a{color:rgba(255,255,255,.7)}
.foot-bottom{border-top:1px solid var(--line-d);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:rgba(255,255,255,.45)}
.foot-bottom a{color:rgba(255,255,255,.55)}

/* forms */
.form{border:1px solid var(--line);padding:32px;background:#fff}
.form h3{font-size:21px;margin-bottom:6px;font-weight:640}
.form .fsub{color:var(--ink-soft);font-size:14px;margin-bottom:20px}
.field{margin-bottom:15px}
.field label{display:block;font-size:12.5px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:5px;font-family:inherit;font-size:14.5px;background:var(--paper);transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green)}
.field textarea{min-height:100px;resize:vertical}
.form .fnote{font-size:12px;color:var(--ink-dim);margin-top:8px;font-family:'JetBrains Mono'}

.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--green);z-index:300;transition:width .1s linear}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .nav-links{position:fixed;inset:0;background:rgba(12,17,22,.97);backdrop-filter:blur(16px);flex-direction:column;justify-content:center;gap:26px;transform:translateX(100%);transition:.4s}
  .nav-links.open{transform:none}.nav-links a{font-size:20px;color:#fff!important}
  .menu-toggle{display:block}
  .pillars3,.cards,.cards.c4,.metrics,.split,.moats{grid-template-columns:1fr}
  .pillar3,.metric{border-right:none;border-bottom:1px solid var(--line)}
  .card{border-right:none}
  .moat{border-right:none}
  .layer{grid-template-columns:1fr auto;gap:10px}.layer .ldesc{grid-column:1/-1}
  .section{padding:64px 0}.hero,.phero{padding-top:128px}
}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}.metrics{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}