/* csj9.io homepage — from the Claude Design handoff (v3: docs/superpowers/design/2026-10-06-csj9-homepage-v3).
   Light theme only. No shadows, gradients, images or icons. Lime ONLY on the wordmark square, the single constellation point and the focus halo. */
:root{
  --bg:#FFFFFF;--panel:#F4F6F2;--ink:#18231D;--muted:#5F6C64;--rule:#E3E7E1;--rule-panel:#DCE1DA;
  --tag-border:#C4CCC3;--chart-fill:#E4E9E1;--field-border:#8E9A92;--dark:#13201A;--dark-rule:#2C3A33;
  --on-dark:#FFFFFF;--on-dark-muted:#C3CDC6;--footer-label:#A3AFA7;--footer-text:#BAC4BD;
  --link:#4C7612;--lime:#8CCA2B;--error:#A3361F;--placeholder:#7A867E;
  --font-display:"DM Serif Display",Georgia,serif;--font-body:"DM Sans",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,monospace;
  --content-max:1040px;--gutter:clamp(20px,5vw,40px);--radius:2px;
}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--link)}a:hover{color:var(--ink)}
input::placeholder,textarea::placeholder{color:var(--placeholder)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;box-shadow:0 0 0 2px #FFFFFF,0 0 0 4px var(--ink),0 0 0 7px var(--lime)}
h1,h2,h3{font-family:var(--font-display);font-weight:400;margin:0}
p{margin:0}
.wrap{max-width:var(--content-max);margin:0 auto;padding-inline:var(--gutter)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:16px}
.muted{color:var(--muted)}
.label{font-family:var(--font-mono);font-weight:400;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* skip link (audit 2026-10-05): off-screen until keyboard focus; uses the global focus ring */
.skip{position:absolute;left:-10000px;top:8px;z-index:10;background:var(--bg);color:var(--ink);font-size:16px;padding:12px 16px;min-height:44px;box-sizing:border-box;display:inline-flex;align-items:center}
.skip:focus{left:16px}

/* 1 · strip */
.strip{background:var(--dark);color:var(--on-dark)}
.strip .wrap{height:44px;display:flex;align-items:center;justify-content:space-between;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.strip-label{color:var(--on-dark-muted)}
.strip a{color:var(--on-dark);text-decoration:none;min-height:44px;display:flex;align-items:center;padding:0 2px}

/* 2 · nav */
nav.top{border-bottom:1px solid var(--rule)}
nav.top .wrap{height:76px;display:flex;align-items:center;justify-content:space-between}
.mark{text-decoration:none;color:var(--ink);display:flex;align-items:baseline;gap:3px;min-height:44px;padding-top:6px}
.mark:hover{color:var(--ink)}
.mark-text{font-family:var(--font-display);font-size:31px;line-height:1;letter-spacing:-.01em}
.mark-dot{width:6px;height:6px;background:var(--lime);display:block}
.nav-links{display:flex;gap:clamp(14px,3vw,28px)}
.nav-links a{color:var(--ink);text-decoration:none;min-height:44px;display:flex;align-items:center;font-size:16px}
.nav-links a.nowrap{white-space:nowrap}

/* 3 · hero */
.hero{padding-block:clamp(40px,7vw,88px) clamp(64px,10vw,112px)}
.hero-row{display:flex;flex-wrap:wrap;gap:clamp(40px,5vw,56px);align-items:center}
.hero-text{flex:1 1 440px;min-width:0}
.hero h1{font-size:clamp(46px,8vw,82px);line-height:1.02;letter-spacing:-.018em;text-wrap:balance;max-width:10.5em}
.lede{font-size:clamp(18px,2vw,20px);line-height:1.55;color:var(--muted);margin-top:28px;max-width:30em;text-wrap:pretty}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.btn{min-height:48px;display:inline-flex;align-items:center;font:inherit;font-size:16px;font-weight:500;border-radius:var(--radius);text-decoration:none;cursor:pointer}
.btn:hover{opacity:.9}
.btn-primary{background:var(--dark);color:var(--on-dark);border:0;padding:0 24px}
.btn-primary:hover{color:var(--on-dark)}
.art{flex:0 1 400px;min-width:0;height:clamp(262px,32vw,400px);position:relative}
.art csj9-constellation{position:absolute;inset:0}
/* Mobile hero (handoff v3b, frame 6b): under 600px the box is replaced by a full-bleed 170px band below the button */
.art-band{display:none}
@media (max-width:599px){
  .hero{padding-bottom:0}
  .art{display:none}
  .art-band{display:block;flex:1 0 100%;min-width:0;height:170px;position:relative;margin:8px calc(-1 * var(--gutter)) 0}
  .art-band csj9-constellation{position:absolute;inset:0}
}

/* shared section frames */
/* shared section frames (v3: every section after the hero = ink rule + mono-label h2 aside) */
.sec{padding-bottom:clamp(64px,10vw,112px)}
.split{display:flex;flex-wrap:wrap;gap:16px 48px}
.ruled{border-top:1px solid var(--ink);padding-top:16px}
.aside{flex:1 1 200px;padding-top:4px}
.main{flex:3 1 560px;min-width:0}

/* 4 · what we do */
.build-row{display:flex;flex-wrap:wrap;gap:8px 40px;padding:28px 0 24px;border-top:1px solid var(--rule)}
.build-row.first{padding:0 0 32px;border-top:0}
.build-row.last{padding:28px 0 0}
.build-row h3{flex:1 1 200px;font-size:28px;line-height:1.15;letter-spacing:-.01em}
.build-row .body{flex:2 1 300px;min-width:0}
.build-row .body p{text-wrap:pretty}
.link-row{display:flex;flex-wrap:wrap;gap:0 28px}
.text-link{color:var(--link);font-size:16px;font-weight:500;text-underline-offset:4px;min-height:44px;display:inline-flex;align-items:center}

/* 5 · a glimpse of our activity (vault); performance block sits on white */
.glimpse{max-width:36em;text-wrap:pretty}
.vault-row{display:flex;flex-wrap:wrap;gap:32px 48px;margin-top:28px;align-items:flex-start}
.returns{flex:1 1 280px;max-width:360px;border-top:2px solid var(--ink)}
.returns>div{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--rule-panel);font-size:16px}
.returns .num{text-align:right}
.chart-col{flex:2 1 420px;min-width:0}
.chart{position:relative;height:180px;border-top:1px solid var(--rule-panel);border-bottom:1px solid var(--tag-border)}
.chart .grid{position:absolute;left:0;right:0;height:1px;background:#EDF0EB}
.chart .g1{top:33.3%}.chart .g2{top:66.6%}
.chart svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.chart-area{fill:#EEF1EC}
.chart-line{fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linejoin:round}
.chart-last{position:absolute;right:0;width:9px;height:9px;border-radius:50%;background:var(--ink);box-shadow:0 0 0 3px #FFFFFF,0 0 0 4px var(--ink);transform:translate(50%,-50%)}
.chart-axis{display:flex;justify-content:space-between;margin-top:8px;font-family:var(--font-mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.caption{font-size:14px;line-height:1.55;color:var(--muted);margin-top:20px}
.caption.tight{margin-top:4px}

/* 6 · milestones */
.mile{display:grid;grid-template-columns:96px minmax(0,1fr);gap:16px;padding:16px 0;border-top:1px solid var(--rule)}
.mile.first{padding:0 0 16px;border-top:0}
.mile.last{border-bottom:1px solid var(--rule)}
.mile .num{padding-top:1px}
.mile .pretty{text-wrap:pretty}

/* 7 · open to conversations + contact */
.ruled-contact{border-top:1px solid var(--ink);padding-top:24px;gap:24px 48px}
#contact h2{flex:1 1 200px;font-size:clamp(34px,4.4vw,44px);line-height:1.1;letter-spacing:-.015em}
.form-col{flex:3 1 560px;min-width:0;max-width:640px}
#contact h2{text-wrap:balance}
.audience{list-style:none;margin:0 0 40px;padding:0;border-bottom:1px solid var(--rule)}
.audience li{padding:14px 0;border-top:1px solid var(--rule);text-wrap:pretty}
.audience li:first-child{padding-top:0;border-top:0}
form{display:flex;flex-direction:column;gap:22px}
.pair{display:flex;flex-wrap:wrap;gap:22px 20px}
.pair .field{flex:1 1 240px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:16px;font-weight:500}
.field input,.field select,.field textarea{box-sizing:border-box;border:1px solid var(--field-border);border-radius:var(--radius);font:inherit;font-size:16px;color:var(--ink);background:#FFFFFF;width:100%}
.field input,.field select{height:48px;padding:0 14px}
.field select{padding-right:44px;appearance:none;-webkit-appearance:none;
  background:#FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2318231D' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 16px center}
.field textarea{padding:12px 14px;line-height:1.55;resize:vertical;min-height:150px}
.field [aria-invalid="true"]{border-color:var(--error)}
.err{font-size:15px;color:var(--error)}
.limited{background:var(--panel);border-top:2px solid var(--error);padding:14px 16px;font-size:16px;color:var(--ink)}
.submit-row{display:flex;flex-direction:column;align-items:flex-start;gap:14px;padding-top:4px}
.submit-row .btn-primary{padding:0 28px}
.submit-row .caption{margin-top:0;line-height:1.6}
.sent{border-top:2px solid var(--ink);border-bottom:1px solid var(--rule);padding:28px 0}
.sent p{font-family:var(--font-display);font-size:26px;line-height:1.3;text-wrap:pretty}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}

/* 8 · footer */
.band{background:var(--dark);color:var(--on-dark)}
.footer-inner{padding-block:56px 24px}
.footer-label{color:var(--footer-label)}
.legal{margin-top:14px;font-size:14px;line-height:1.65;color:var(--footer-text);max-width:78ch;text-wrap:pretty}
.footer-row{margin-top:40px;padding-top:12px;border-top:1px solid var(--dark-rule);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 24px}
.footer-row>span{font-size:15px;color:var(--on-dark);min-height:44px;display:flex;align-items:center}
.footer-links{display:flex;flex-wrap:wrap;gap:0 24px}
.footer-links a{color:var(--on-dark);text-decoration:none;font-size:15px;min-height:44px;display:flex;align-items:center}
.footer-links a:hover{color:var(--on-dark)}