/* MeasuredWindows — content layer. Design: Lokuma `swiss` (docs/DESIGN.md), accent steel-blue
   #3A6EA5. Content-only build (阶段 -1); no commerce components. Not overwritten by the builder. */
:root{
  --bg:#FFFFFF; --muted:#F5F5F5; --line:#D9D9D9; --sub:#797979; --ink:#000000;
  --acc:#3A6EA5; --acc-ink:#2C5580;
  --ok:#0A7D33; --ok-bg:#E7F4EA; --warn:#7A5200; --warn-bg:#FFF3E0; --bad:#B3261E; --bad-bg:#FDEEEE;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --grot:"Space Grotesk",system-ui,sans-serif;
  --body:"Inter",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);
  font-size:16px;line-height:1.6;overflow-x:hidden;font-feature-settings:"kern";-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:inherit}
h1,h2,h3,h4,h5{font-family:var(--grot);font-weight:700;letter-spacing:-.01em;line-height:1.12;margin:0}
p{margin:0 0 1em}
main{display:block}
::selection{background:var(--acc);color:#fff}

.skip{position:absolute;left:-999px;top:0;background:#000;color:#fff;padding:10px 16px;z-index:100}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* header */
.topbar{background:var(--ink);color:#fff;font-size:12.5px;text-align:center;padding:8px 16px;letter-spacing:.01em}
.top{position:sticky;top:0;z-index:40;background:var(--bg);border-bottom:4px solid var(--ink);
  display:flex;align-items:center;gap:18px;padding:14px 22px}
.wordmark{display:flex;align-items:center;gap:9px;font-family:var(--grot);font-weight:700;font-size:20px;text-decoration:none;letter-spacing:-.01em}
.mark{width:15px;height:15px;background:var(--acc);display:inline-block}
.mainnav{display:flex;gap:20px;margin-left:auto}
.mainnav a{font-size:12px;text-transform:uppercase;letter-spacing:.09em;font-weight:600;text-decoration:none;
  color:var(--sub);padding:4px 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.mainnav a:hover,.mainnav a.active{color:var(--ink);border-color:var(--acc)}
.preview-tag{font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;
  color:var(--sub);border:1px solid var(--line);padding:3px 7px}
.meta-strip{font-family:var(--mono);font-size:11.5px;color:var(--sub);text-transform:uppercase;letter-spacing:.06em;
  padding:8px 22px;border-bottom:1px solid var(--line);background:var(--muted)}

main{max-width:1120px;margin:0 auto;padding:0 22px}
.kicker{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--acc-ink);margin:0 0 14px;font-weight:600}
.kicker.warn{color:var(--warn)}
h1{font-size:clamp(28px,5vw,40px);margin:0 0 14px}
.display{font-size:clamp(34px,7vw,58px);line-height:1.03;letter-spacing:-.025em;margin:0 0 18px}
h2{font-size:clamp(21px,3.5vw,27px);margin:38px 0 14px}
h3{font-size:17px}
.sub{font-size:clamp(16px,2vw,19px);color:#2b2b2b;max-width:62ch;margin:0 0 22px;line-height:1.5}
.note{font-size:14px;color:var(--sub);line-height:1.5}
.crumbs{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--sub);margin:22px 0 18px}
.crumbs a{color:var(--acc-ink);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.crumbs span{margin:0 4px}
.tlink{color:var(--ink);font-weight:600;text-decoration:none;border-bottom:2px solid var(--acc);padding-bottom:1px}
.tlink:hover{background:var(--acc);color:#fff;border-color:var(--acc)}
main ul{margin:0 0 1em;padding-left:20px}
main li{margin-bottom:8px;line-height:1.5}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--grot);font-weight:500;
  font-size:15px;padding:12px 20px;border:2px solid var(--ink);background:var(--bg);color:var(--ink);
  text-decoration:none;cursor:pointer;min-height:44px;transition:background .15s,color .15s,border-color .15s}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--acc);border-color:var(--acc);color:#fff}
.btn-ghost{background:none}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-lg{font-size:16px;padding:15px 26px}
.btn-block{width:100%}

/* hero + bands */
.hero{padding:52px 0 40px;border-bottom:1px solid var(--line)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 34px;align-items:center}
.promise-row{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:2px solid var(--ink)}
.promise{padding:20px;border-right:1px solid var(--line)}
.promise:last-child{border-right:none}
.promise b{font-family:var(--grot);display:block;font-size:15px;margin-bottom:6px}
.promise span{font-size:13.5px;color:var(--sub);line-height:1.45}
.band{padding:44px 0;border-bottom:1px solid var(--line)}
.band.alt{margin:0 -22px;padding:44px 22px;position:relative;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:24px 24px;background-color:var(--muted)}
.band.alt::before{content:"";position:absolute;inset:0;background:rgba(245,245,245,.94);pointer-events:none}
.band.alt>*{position:relative}
.split{display:grid;grid-template-columns:1.3fr 1fr;gap:34px;align-items:start}
.gate-note{border:2px solid var(--ink);background:var(--bg);padding:22px}
.gate-note .kicker.warn{margin-bottom:10px}
.cta-block{border:2px solid var(--ink);border-left:6px solid var(--acc);background:var(--muted);padding:16px 18px;margin:20px 0}
.cta-block .kicker{margin-bottom:6px}
.cta-block p{margin:0;font-size:14px}

/* card grid */
.fam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:2px solid var(--ink);border-right:0;border-bottom:0}
.fam-card{display:flex;flex-direction:column;gap:8px;padding:24px;text-decoration:none;color:var(--ink);
  border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transition:background .15s,color .15s}
.fam-card:hover{background:var(--ink);color:#fff}
.fam-card.slim{gap:0;justify-content:center}
.fam-n{font-family:var(--mono);font-size:12px;color:var(--acc-ink);letter-spacing:.1em}
.fam-card:hover .fam-n{color:#fff}
.fam-card h3{font-size:17px}
.fam-card p{font-size:13.5px;color:var(--sub);margin:0;line-height:1.45}
.fam-card:hover p{color:#cfcfcf}
.fam-go{margin-top:auto;font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--acc-ink);padding-top:8px}
.fam-card:hover .fam-go{color:var(--acc)}

/* tables */
.tbl-wrap{overflow-x:auto;margin:16px 0}
table.spec{width:100%;border-collapse:collapse;border-top:2px solid var(--ink)}
table.spec th,table.spec td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
table.spec th{font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--sub);font-weight:600;white-space:nowrap;width:190px}
tr:hover td{background:var(--muted)}

/* faq */
.faq{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-family:var(--grot);font-weight:500;font-size:16px;padding:15px 30px 15px 0;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:13px;font-size:20px;color:var(--acc);transition:transform .15s}
.faq[open] summary::after{content:"\2013"}
.faq p{padding:0 0 16px;margin:0;font-size:14.5px;color:#2b2b2b;max-width:70ch}

/* waitlist capture */
.capture-card{border:2px solid var(--ink);border-top:6px solid var(--acc);padding:24px;max-width:560px;margin:24px 0}
.capture-card h3{font-size:19px;margin:2px 0 8px}
.wl-form{display:flex;flex-direction:column;gap:6px;margin-top:14px}
.wl-form label{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--sub)}
.wl-form input{font-size:16px;padding:12px;border:2px solid var(--ink);background:var(--bg);min-height:48px}
.wl-form .btn{margin-top:12px}
.wl-done{color:var(--ok);font-weight:600;margin-top:12px}
.wl-done[hidden]{display:none}
.wl-note{margin-top:12px}

/* footer */
.site-foot{background:var(--ink);color:#fff;margin-top:64px;padding:48px 22px 28px}
.foot-grid{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:32px}
.foot-brand{font-family:var(--grot);font-weight:700;font-size:19px;display:flex;flex-direction:column;gap:10px}
.foot-brand .mark{width:14px;height:14px}
.foot-brand p{font-family:var(--body);font-weight:400;font-size:13.5px;color:#b9b9b9;line-height:1.5;margin:0}
.foot-grid h5{font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:.09em;color:#8f8f8f;margin:0 0 12px;font-weight:600}
.foot-grid a{display:block;color:#e2e2e2;text-decoration:none;font-size:14px;padding:5px 0}
.foot-grid a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--acc);text-underline-offset:3px}
.foot-bottom{max-width:1120px;margin:32px auto 0;padding-top:20px;border-top:1px solid #333;display:flex;
  flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:#8f8f8f;line-height:1.5}
.foot-bottom a{color:#b9b9b9}

/* responsive */
@media (max-width:860px){
  .split{grid-template-columns:1fr}
  .fam-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .mainnav{gap:14px}
}
@media (max-width:560px){
  .promise-row{grid-template-columns:1fr}
  .promise{border-right:none;border-bottom:1px solid var(--line)}
  .promise:last-child{border-bottom:none}
  .fam-grid,.foot-grid{grid-template-columns:1fr}
  .top{gap:12px;padding:12px 16px;flex-wrap:wrap}
  .mainnav{margin-left:0}
  main{padding:0 16px}
  .band.alt{margin:0 -16px;padding:36px 16px}
}