/* Keelhelm — corporate design system. Light default; dark via [data-theme="dark"] or
   prefers-color-scheme (no-flash inline script sets data-theme before paint). System fonts
   only — zero web-font fetch. Deliberately calm/neutral: this is the parent corp surface,
   not a product marketing site. */
:root{
  --bg:#FCFDFD; --panel:#F1F5F5; --panel-2:#E7EDED; --ink:#0E1B1F; --ink-2:#3B4A50; --ink-3:#6B7A80;
  --line:rgba(14,27,31,.14); --line-2:rgba(14,27,31,.07); --grid:rgba(14,27,31,.04);
  --accent:#0E6E6E; --accent-2:#0B5757; --on-accent:#fff;
  --ok:#127a3f; --warn:#9a6b00; --bad:#b23636;
  --shadow:0 1px 0 var(--line),0 24px 56px -34px rgba(14,27,31,.45);
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
}
:root[data-theme="dark"]{
  --bg:#0C1416; --panel:#131E21; --panel-2:#1A272B; --ink:#EAF1F1; --ink-2:#AEBEC0; --ink-3:#7E8F92;
  --line:rgba(255,255,255,.13); --line-2:rgba(255,255,255,.07); --grid:rgba(255,255,255,.035);
  --accent:#3FB7B0; --accent-2:#63C9C1; --on-accent:#08201F;
  --ok:#4bd07f; --warn:#e0b24a; --bad:#f08585;
  --shadow:0 1px 0 rgba(255,255,255,.05),0 28px 64px -34px rgba(0,0,0,.8);
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]):not([data-theme="dark"]){
  --bg:#0C1416;--panel:#131E21;--panel-2:#1A272B;--ink:#EAF1F1;--ink-2:#AEBEC0;--ink-3:#7E8F92;
  --line:rgba(255,255,255,.13);--line-2:rgba(255,255,255,.07);--grid:rgba(255,255,255,.035);
  --accent:#3FBFB6;--accent-2:#63C9C1;--on-accent:#08201F;
  --shadow:0 1px 0 rgba(255,255,255,.05),0 28px 64px -34px rgba(0,0,0,.8);
}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  background:radial-gradient(circle at 1px 1px,var(--grid) 1px,transparent 0) 0 0/26px 26px, var(--bg);
  transition:background-color .2s ease,color .2s ease}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
h1,h2,h3{letter-spacing:-.024em;line-height:1.08;font-weight:660;margin:0}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.mono{font-family:var(--mono)}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-2);margin:0}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--ink);color:var(--bg);padding:8px 12px;z-index:99}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}

/* header / footer — same skeleton as the product sites so retrofits stay consistent */
header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:saturate(1.2) blur(9px);border-bottom:1px solid var(--line-2)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:720;font-size:20px;letter-spacing:-.03em}
.brand .mark{width:26px;height:26px;flex:0 0 auto}
nav ul{display:flex;gap:24px;align-items:center;margin:0;padding:0;list-style:none;font-size:15px}
nav a{color:var(--ink-2)}nav a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:14px;letter-spacing:.01em;padding:10px 18px;border:1px solid var(--ink);background:var(--ink);color:var(--bg);cursor:pointer;transition:transform .12s ease,filter .12s ease;border-radius:2px}
.btn:hover{transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink)}.btn.ghost:hover{background:var(--ink);color:var(--bg)}
.btn.accent{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.btn.accent:hover{filter:brightness(1.06)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
nav .btn{padding:8px 14px}
.tg{display:inline-grid;place-items:center;width:38px;height:38px;border:1px solid var(--line);background:transparent;color:var(--ink-2);cursor:pointer;border-radius:2px}
.tg:hover{color:var(--ink);border-color:var(--ink)}.tg svg{width:18px;height:18px}
.tg .moon{display:none}:root[data-theme="dark"] .tg .moon{display:block}:root[data-theme="dark"] .tg .sun{display:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]):not([data-theme="dark"]) .tg .moon{display:block}:root:not([data-theme="light"]):not([data-theme="dark"]) .tg .sun{display:none}}
@media(max-width:760px){nav ul li.hide-sm{display:none}}

/* hero + landing */
.page-head{padding:60px 0 8px}
.page-head h1{font-size:clamp(32px,5vw,54px)}
.page-head .lede{font-size:clamp(18px,2vw,21px);color:var(--ink-2);margin:18px 0 0;max-width:60ch}
section{padding:56px 0;border-top:1px solid var(--line-2)}
.sec-head{margin-bottom:28px}
.sec-head h2{font-size:clamp(24px,3.4vw,34px)}
.sec-head p{color:var(--ink-2);margin:10px 0 0;max-width:64ch}

/* app cards grid */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{display:block;background:var(--panel);border:1px solid var(--line-2);border-radius:6px;padding:22px;transition:border-color .15s ease,transform .12s ease}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card .k{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-2)}
.card h3{font-size:20px;margin:8px 0 6px}
.card p{color:var(--ink-2);font-size:15px;margin:0}
.card .live{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:12px;color:var(--ok)}
.card .soon{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:12px;color:var(--ink-3)}
.card.static{cursor:default}.card.static:hover{border-color:var(--line-2);transform:none}

/* prose (legal pages) */
.prose{max-width:74ch;color:var(--ink-2);font-size:16.5px}
.prose h2{color:var(--ink);font-size:22px;margin:36px 0 12px}
.prose h3{color:var(--ink);font-size:18px;margin:26px 0 8px}
.prose p{margin:0 0 14px}.prose ul,.prose ol{margin:0 0 14px;padding-left:22px}.prose li{margin:6px 0}
.prose code{font-family:var(--mono);font-size:14px;background:var(--panel);padding:2px 6px;border-radius:3px;color:var(--ink)}
.prose a{color:var(--accent-2);text-decoration:underline;text-underline-offset:2px}
.prose strong{color:var(--ink)}
.prose .updated{font-family:var(--mono);font-size:12.5px;color:var(--ink-3)}
.callout{background:var(--panel);border:1px solid var(--line-2);border-left:3px solid var(--accent);border-radius:4px;padding:16px 18px;margin:18px 0}
.callout p{margin:0 0 8px}.callout p:last-child{margin:0}

/* policy library list */
.polist{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.polist li{background:var(--panel);border:1px solid var(--line-2);border-radius:6px}
.polist a{display:block;padding:18px 20px}
.polist a:hover{background:var(--panel-2)}
.polist .t{color:var(--ink);font-weight:640;font-size:17px}
.polist .d{color:var(--ink-2);font-size:14.5px;margin-top:4px}
.polist .v{font-family:var(--mono);font-size:12px;color:var(--ink-3);margin-top:6px}

/* forms */
.form{max-width:720px;display:grid;gap:18px;margin-top:8px}
.field{display:grid;gap:6px}
.field label{font-weight:600;color:var(--ink);font-size:15px}
.field .req{color:var(--bad)}
.field .help{font-size:13px;color:var(--ink-3);margin:0}
.field input[type=text],.field input[type=email],.field input[type=url],.field select,.field textarea{
  width:100%;font:inherit;font-size:15px;color:var(--ink);background:var(--bg);
  border:1px solid var(--line);border-radius:4px;padding:10px 12px}
.field textarea{min-height:130px;resize:vertical;line-height:1.5}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.field.check{grid-template-columns:auto 1fr;align-items:start;gap:10px}
.field.check input{margin-top:4px}
.field.check label{font-weight:400;color:var(--ink-2);font-size:14.5px;line-height:1.45}
.form-note{background:var(--panel);border:1px solid var(--line-2);border-radius:4px;padding:14px 16px;font-size:14px;color:var(--ink-2)}
.form-note a{color:var(--accent-2);text-decoration:underline}
.form-msg{font-size:14.5px;padding:12px 14px;border-radius:4px}
.form-msg.ok{background:color-mix(in srgb,var(--ok) 14%,transparent);color:var(--ok);border:1px solid color-mix(in srgb,var(--ok) 40%,transparent)}
.form-msg.err{background:color-mix(in srgb,var(--bad) 12%,transparent);color:var(--bad);border:1px solid color-mix(in srgb,var(--bad) 40%,transparent)}
fieldset{border:1px solid var(--line-2);border-radius:6px;padding:18px;margin:0;display:grid;gap:16px}
fieldset legend{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-2);padding:0 6px}

footer{border-top:1px solid var(--line);padding:44px 0 60px;font-size:14px;color:var(--ink-3);margin-top:8px}
footer .grid{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
footer a{color:var(--ink-2)}footer a:hover{color:var(--ink)}
footer .col h4{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0 0 12px;font-weight:500}
footer .col a{display:block;padding:4px 0}
.fbrand{display:inline-flex;align-items:center;gap:8px;font-weight:720;font-size:17px;color:var(--ink)}
.fnote{max-width:38ch;margin:12px 0 0;color:var(--ink-3)}