:root{
  --text-sm:clamp(.875rem,.82rem + .25vw,1rem);
  --text-base:clamp(1rem,.96rem + .2vw,1.0625rem);
  --text-lg:clamp(1.2rem,1.05rem + .6vw,1.5rem);
  --text-hero:clamp(2.4rem,1.6rem + 3.6vw,4rem);
  --bg:#f5f7fa;--surface:#ffffff;--ink:#0d1b2a;--muted:#4b586a;--faint:#7b8798;--line:#d6dee8;
  --blue:#1e8fd6;--deep:#1672b0;--sky:#3db5e7;--blue-soft:#e6f5fd;--red:#c2362b;
  --font:'Epilogue',-apple-system,'Segoe UI',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;color:var(--ink);font-family:var(--font);font-size:var(--text-base);line-height:1.5;
  background:radial-gradient(1200px 600px at 50% -10%,#cfeeff 0%,rgba(207,238,255,0) 70%),
             linear-gradient(180deg,#eaf6fe 0%,#f5f7fa 45%,#e3f2fc 100%)}
.num{font-variant-numeric:tabular-nums lining-nums}
.wrap{max-width:720px;margin:0 auto;padding:clamp(1.5rem,5vw,3rem) clamp(1rem,4vw,1.5rem) 2rem}
.hero{text-align:center;margin-bottom:clamp(1.25rem,3vw,2rem)}
.logo{height:clamp(30px,5vw,40px);width:auto;display:inline-block;margin-bottom:clamp(1rem,3vw,1.75rem)}
h1{font-size:var(--text-hero);line-height:1.05;letter-spacing:-.02em;font-weight:800;margin:0 0 .6rem;color:var(--ink)}
.lede{color:var(--muted);max-width:30rem;margin:0 auto 1.1rem;font-size:var(--text-base)}
.pill{display:inline-flex;align-items:baseline;gap:.5rem;padding:.6rem 1.25rem;border-radius:999px;background:var(--surface);
  border:1px solid #b9e2f7;box-shadow:0 4px 16px rgba(30,143,214,.12);color:var(--deep);font-weight:600}
.pill strong{font-size:1.35rem;color:var(--ink);font-weight:800}
.card{background:rgba(255,255,255,.96);border:1px solid #dbe7f1;border-radius:18px;padding:clamp(1.25rem,4vw,2rem);
  box-shadow:0 1px 2px rgba(13,27,42,.04),0 12px 40px rgba(22,114,176,.10)}
h2{font-size:var(--text-lg);margin:0 0 .9rem;font-weight:700;letter-spacing:-.01em}
h2.mt{margin-top:1.6rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
@media (max-width:540px){.row{grid-template-columns:1fr}}
.field{display:block;margin:0 0 1rem;border:0;padding:0;min-width:0}
.field>span,legend{display:block;font-weight:600;font-size:var(--text-sm);margin-bottom:.4rem;padding:0}
em{font-style:normal;font-weight:400;color:var(--faint)}
input,textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:10px;padding:.8rem .9rem;
  transition:border-color .15s,box-shadow .15s}
textarea{resize:vertical;min-height:5.5rem}
input::placeholder,textarea::placeholder{color:#97a3b3}
input:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,143,214,.18)}
.invalid input,input.invalid{border-color:var(--red);box-shadow:0 0 0 3px rgba(194,54,43,.12)}
.chips{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{position:relative;cursor:pointer}
.chip input{position:absolute;opacity:0;width:1px;height:1px}
.chip span{display:inline-flex;align-items:center;gap:.5rem;padding:.55rem 1rem;border:1px solid var(--line);border-radius:999px;font-weight:600;background:#fff;transition:all .15s}
.chip span::before{content:"";width:16px;height:16px;border-radius:50%;border:1.5px solid #8b97a8;box-sizing:border-box;transition:all .15s}
.chip input:checked+span{border-color:var(--blue);background:var(--blue-soft);color:var(--deep)}
.chip input:checked+span::before{border:5px solid var(--blue)}
.chip input:focus-visible+span{box-shadow:0 0 0 3px rgba(30,143,214,.25)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.btn{display:block;width:100%;margin-top:.5rem;padding:1rem 1.25rem;border:0;border-radius:12px;font:inherit;font-weight:700;font-size:1.05rem;color:#fff;cursor:pointer;
  background:linear-gradient(135deg,#3db5e7 0%,#1e8fd6 55%,#1672b0 100%);box-shadow:0 6px 18px rgba(30,143,214,.3);transition:transform .1s,box-shadow .15s,opacity .15s}
.btn:hover{box-shadow:0 8px 24px rgba(30,143,214,.38)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.65;cursor:progress}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.btn.ghost{background:#fff;color:var(--deep);border:1px solid #b9e2f7;box-shadow:none;width:auto;margin:1.25rem auto 0;padding:.75rem 1.4rem}
.err{color:var(--red);font-weight:600;font-size:var(--text-sm);margin:.25rem 0 .5rem}
.fine{color:var(--faint);font-size:.85rem;text-align:center;margin:.9rem 0 0}
.done{text-align:center}
.done:focus{outline:none}
.check{width:56px;height:56px;border-radius:50%;margin:0 auto 1rem;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#3db5e7,#1672b0)}
.done p{color:var(--muted);max-width:28rem;margin:0 auto}
.foot{text-align:center;color:var(--faint);font-size:.85rem;margin-top:1.75rem}
.foot a{color:var(--deep)}
.chips.invalid .chip span{border-color:var(--red)}