:root{
  --dt-blue:#1769e0;
  --dt-deep:#0b2450;
  --dt-ink:#10213d;
  --dt-muted:#6f7d92;
  --dt-line:#dfe7f1;
  --dt-soft:#f5f9ff;
  --dt-green:#15a96b;
  --dt-red:#c93d4d;
  --dt-white:#ffffff;
  --dt-shadow:0 14px 38px rgba(24,57,104,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--dt-ink);
  background:#fff;
}
a{color:inherit;text-decoration:none}
.wrap{width:min(1120px,calc(100% - 36px));margin:auto}
header{
  position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--dt-line)
}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--dt-deep);letter-spacing:-.02em}
.mark{
  width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2074e8,#105dc9);
  display:grid;place-items:center;color:white;font-weight:900;box-shadow:0 7px 20px rgba(23,105,224,.24)
}
nav{display:flex;gap:24px;align-items:center;color:#41506a;font-size:14px;font-weight:600}
nav a:hover{color:var(--dt-blue)}
.hero{padding:76px 0 38px;background:linear-gradient(180deg,#f8fbff,white)}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:13px;font-weight:800;color:var(--dt-blue);text-transform:uppercase;letter-spacing:.1em}
.hero h1{font-size:clamp(38px,5vw,62px);letter-spacing:-.045em;line-height:1.02;margin:14px 0 18px;color:var(--dt-deep)}
.hero p{font-size:18px;color:var(--dt-muted);max-width:720px;line-height:1.7}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:34px 0 82px}
.card{
  border:1px solid var(--dt-line);border-radius:20px;background:#fff;padding:28px;
  box-shadow:var(--dt-shadow)
}
.card h2{font-size:24px;margin:0 0 8px;color:var(--dt-deep)}
.card p{color:var(--dt-muted);line-height:1.65;margin:0 0 22px}
label{display:block;font-size:13px;font-weight:800;margin:17px 0 7px;color:#243654}
input,select,textarea{
  width:100%;border:1px solid #cfd9e6;background:#fff;border-radius:12px;
  padding:13px 14px;font:inherit;color:var(--dt-ink);outline:none;transition:.16s
}
input:focus,select:focus,textarea:focus{border-color:var(--dt-blue);box-shadow:0 0 0 4px rgba(23,105,224,.10)}
textarea{min-height:126px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.btn{
  display:inline-flex;justify-content:center;align-items:center;gap:9px;border:0;border-radius:12px;
  background:var(--dt-blue);color:white;font-weight:800;padding:13px 18px;cursor:pointer;
  box-shadow:0 9px 22px rgba(23,105,224,.20);transition:.15s
}
.btn:hover{transform:translateY(-1px);background:#0f60d2}
.btn.secondary{background:white;color:var(--dt-blue);border:1px solid #cbdcf2;box-shadow:none}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.notice{display:none;margin-top:18px;border-radius:14px;padding:14px 16px;line-height:1.55}
.notice.ok{display:block;background:#edf9f4;border:1px solid #bfe8d4;color:#176a4b}
.notice.err{display:block;background:#fff1f2;border:1px solid #efc8ce;color:#8c2937}
.lookup{display:flex;gap:10px}
.lookup input{text-transform:uppercase}
.cert{
  display:none;margin-top:22px;border-radius:18px;border:1px solid #cfe2f5;
  background:linear-gradient(180deg,#fbfdff,#f4f9ff);padding:24px
}
.cert.show{display:block}
.cert-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:7px 11px;
  background:#eaf8f2;color:#137d55;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em
}
.badge.bad{background:#fff0f1;color:#a93140}
.kv{display:grid;grid-template-columns:150px 1fr;gap:9px 14px;font-size:14px;padding-top:14px;border-top:1px solid #d8e5f2}
.kv b{color:#52627a}
.kv span{word-break:break-word}
footer{background:#0b2147;color:#c9d5e8;padding:30px 0;font-size:13px}
footer strong{color:#fff}
.small{font-size:13px;color:var(--dt-muted);line-height:1.6}
.hidden{display:none!important}
@media(max-width:760px){
  nav{display:none}.grid,.row{grid-template-columns:1fr}.hero{padding-top:52px}.lookup{flex-direction:column}
  .cert-top{flex-direction:column}.kv{grid-template-columns:1fr}
}