:root{
  --pearl:#F7F8F5; --ink:#1B222C; --silver:#D7DEE5;
  --blue:#70B7FF; --cyan:#00D7FF; --err:#B4232C;
  --head:"Space Grotesk",system-ui,sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{
  background:var(--pearl);color:var(--ink);font-family:var(--body);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
  min-height:100vh;display:flex;flex-direction:column;
}
.bg{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgba(112,183,255,.22), transparent 60%),
    radial-gradient(40rem 24rem at 10% 110%, rgba(0,215,255,.12), transparent 60%);
}
.top{padding:28px clamp(20px,5vw,64px)}
.mark{display:inline-flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}
.glyph{width:30px;height:30px}
.glyph .horizon{stroke:var(--blue);stroke-width:1.2}
.glyph .waypoint{fill:var(--cyan)}
.wordmark{font-family:var(--head);font-weight:700;letter-spacing:.01em;font-size:18px}
.wordmark .light{font-weight:500;opacity:.6}

.hero{flex:1 0 auto;display:flex;flex-direction:column;justify-content:center;
  max-width:1040px;width:100%;padding:56px clamp(20px,5vw,64px) 24px;margin:0 auto 0 0}
.label{font-family:"SFMono-Regular",ui-monospace,Menlo,monospace;font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:#4a5563;margin:0 0 20px;display:flex;align-items:center;gap:10px}
.label::before{content:"";width:28px;height:1px;background:var(--blue)}
h1{font-family:var(--head);font-weight:600;font-size:clamp(40px,6.4vw,84px);line-height:1.02;
  letter-spacing:-.025em;margin:0;max-width:15ch}
.sub{font-size:clamp(17px,1.6vw,20px);color:#3b4554;max-width:52ch;margin:28px 0 40px}

.cta{font:600 16px/1 var(--body);color:var(--pearl);background:var(--ink);border:0;border-radius:999px;
  padding:18px 28px;cursor:pointer;display:inline-flex;align-items:center;gap:10px;align-self:flex-start;
  box-shadow:0 0 0 1px rgba(27,34,44,.9),0 10px 30px -10px rgba(0,215,255,.55);
  transition:transform .15s ease,box-shadow .2s ease}
.cta:hover{transform:translateY(-1px);box-shadow:0 0 0 1px var(--ink),0 14px 36px -8px rgba(0,215,255,.75)}
.cta:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.cta.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--silver)}
.cta[disabled]{opacity:.55;cursor:progress;transform:none}

dialog{border:0;padding:0;border-radius:20px;width:min(520px,calc(100vw - 32px));max-height:calc(100vh - 32px);
  background:#fff;color:var(--ink);box-shadow:0 30px 80px -20px rgba(27,34,44,.35),0 0 0 1px var(--silver)}
dialog::backdrop{background:rgba(247,248,245,.7);backdrop-filter:blur(6px)}
form,.done{padding:28px}
.dlg-head{display:flex;justify-content:space-between;align-items:center}
dialog h2{font-family:var(--head);font-weight:600;font-size:26px;letter-spacing:-.01em;margin:0}
.close{border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:#5b6575;padding:4px 8px}
.dlg-sub{margin:6px 0 20px;color:#4a5563;font-size:15px}
label{display:block;font-size:14px;font-weight:500;margin-bottom:14px}
.req{color:#0a8fb0}.opt{color:#7a8494;font-weight:400}
input,textarea{display:block;width:100%;margin-top:6px;font:400 16px/1.4 var(--body);color:var(--ink);
  background:var(--pearl);border:1px solid var(--silver);border-radius:12px;padding:12px 14px;
  transition:border-color .15s,box-shadow .15s}
textarea{resize:vertical;min-height:96px}
input:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,215,255,.2)}
input.invalid,textarea.invalid{border-color:var(--err)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.status{min-height:1.4em;font-size:14px;margin:4px 0 12px}
.status.error{color:var(--err)}
.submit{width:100%;justify-content:center}
.done{text-align:center;padding:44px 28px;position:relative}
.done-x{position:absolute;top:16px;right:16px}
.done p{color:#4a5563;margin:8px 0 24px}
.done .cta{align-self:center}
.done-dot{width:14px;height:14px;border-radius:50%;background:var(--cyan);margin:0 auto 18px;
  box-shadow:0 0 0 8px rgba(0,215,255,.15),0 0 24px var(--cyan)}

.horizon-line{position:relative;height:1px;margin-top:64px;max-width:640px;
  background:linear-gradient(90deg,var(--blue),rgba(215,222,229,.9) 40%,transparent)}
.horizon-line::after{content:"";position:absolute;left:38%;top:-3px;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.what{padding:40px clamp(20px,5vw,64px) 88px;max-width:1240px}
.what .label{font-weight:500;font-size:12px;margin-bottom:28px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px)}
.steps li{border-top:1px solid var(--silver);padding-top:20px;position:relative}
.steps li::before{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;
  background:var(--pearl);box-shadow:inset 0 0 0 1.5px var(--blue)}
.steps li:last-child::before{background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.steps h3{font-family:var(--head);font-weight:600;font-size:20px;letter-spacing:-.01em;margin:0 0 8px}
.steps p{margin:0;color:#4a5563;font-size:15.5px;max-width:34ch}
@media (max-width:760px){.steps{grid-template-columns:1fr;gap:28px}.what{padding-bottom:64px}}
.helper{display:block;font-weight:400;color:#6a7484;font-size:13px;margin-top:2px}
input::placeholder,textarea::placeholder{color:#97a0ad}
.done-msg{font-family:var(--head);font-size:20px;line-height:1.4;color:var(--ink)!important;max-width:30ch;margin:0 auto 24px!important}
.foot{display:flex;justify-content:flex-start;flex-wrap:wrap;gap:12px;font-size:14px;color:#5b6575;
  padding:24px clamp(20px,5vw,64px);border-top:1px solid var(--silver)}
.foot a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--blue)}
.foot a:hover{border-color:var(--cyan)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}