*{box-sizing:border-box}
:root{
  --bg:#020b16;
  --bg2:#061525;
  --panel:#081a2c;
  --panel2:#0b2137;
  --text:#f7fbff;
  --muted:#9db0c5;
  --line:rgba(255,255,255,.10);
  --blue:#0b84ff;
  --blue2:#3ca2ff;
  --green:#22c55e;
  --danger:#ef4444;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,Segoe UI,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 18%,rgba(11,132,255,.09),transparent 26%),
    linear-gradient(180deg,#020a14 0%,#03101d 56%,#020a14 100%);
}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,calc(100% - 40px));margin:auto}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(2,10,20,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{height:82px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand-mark{
  font-size:36px;font-weight:900;letter-spacing:-4px;
  background:linear-gradient(180deg,#fff 0 53%,#168cff 53% 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-text{font-size:18px;line-height:1.05}
.brand-text strong{color:var(--blue2)}
.brand-text small{display:block;margin-top:7px;font-size:9px;letter-spacing:4px;color:#9db0c5}
nav{display:flex;gap:26px;font-size:14px;color:#c7d3e1}
nav a:hover,nav a.active{color:white}
.btn{
  border:0;border-radius:10px;padding:14px 20px;font-weight:700;
  cursor:pointer;transition:.2s ease;font-size:14px
}
.btn-primary{background:linear-gradient(180deg,#1590ff,#0577e7);color:white;box-shadow:0 12px 30px rgba(0,119,255,.18)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn-secondary{background:#0a1a2a;border:1px solid #234663;color:#dce8f5}

.hero{position:relative;overflow:hidden;padding:92px 0 74px;border-bottom:1px solid var(--line)}
.orb{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none}
.orb-1{width:360px;height:360px;background:rgba(0,119,255,.15);left:-130px;top:120px}
.orb-2{width:300px;height:300px;background:rgba(30,144,255,.08);right:-120px;bottom:-80px}
.hero-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:center}
.eyebrow{letter-spacing:4px;font-size:12px;color:#9db0c5;margin:0 0 18px}
h1{font-size:58px;line-height:1.02;margin:0 0 22px;letter-spacing:-2.2px}
h1 span{color:var(--blue2)}
.lead{max-width:620px;font-size:18px;line-height:1.7;color:#aebed1;margin-bottom:34px}

.verify-box{
  max-width:650px;background:linear-gradient(180deg,rgba(12,33,55,.86),rgba(7,24,40,.86));
  border:1px solid rgba(102,157,218,.22);border-radius:18px;padding:24px;
  box-shadow:0 25px 70px rgba(0,0,0,.26)
}
.verify-box label{display:block;font-size:12px;letter-spacing:2px;color:#8ea5bf;margin-bottom:10px}
.verify-row{display:flex;gap:12px}
.verify-row input{
  flex:1;min-width:0;background:#04101c;border:1px solid #27445f;color:white;
  border-radius:10px;padding:0 16px;font-size:16px;outline:none
}
.verify-row input:focus{border-color:#168cff;box-shadow:0 0 0 3px rgba(22,140,255,.12)}
.hint{margin:10px 0 0;color:#6f859d;font-size:12px}
.form-message{min-height:18px;margin:10px 0 0;font-size:13px;color:#9db0c5}

.certificate-preview{
  position:relative;min-height:520px;padding:34px 36px;
  border:1px solid rgba(255,255,255,.10);
  background:
    linear-gradient(120deg,rgba(255,255,255,.02),transparent 35%),
    radial-gradient(circle at 75% 20%,rgba(15,132,255,.09),transparent 28%),
    linear-gradient(145deg,#07111e,#020811 72%);
  box-shadow:0 35px 90px rgba(0,0,0,.38);
  overflow:hidden
}
.certificate-preview:before{
  content:"Bi";position:absolute;left:-40px;top:80px;
  font-size:260px;font-weight:900;color:rgba(255,255,255,.025);letter-spacing:-28px
}
.certificate-preview:after{
  content:"";position:absolute;right:-130px;top:70px;width:280px;height:520px;
  background:linear-gradient(180deg,transparent,rgba(15,132,255,.14),transparent);
  transform:rotate(34deg)
}
.preview-top{display:flex;justify-content:space-between;position:relative;z-index:2}
.mini-brand{font-size:26px;font-weight:700}
.mini-brand span{font-size:34px;font-weight:900}.mini-brand b{color:var(--blue)}
.preview-top p,.preview-slogan{font-size:9px;letter-spacing:3px;color:#91a4b9;line-height:1.8}
.preview-title{text-align:center;font-size:52px;font-weight:900;letter-spacing:2px;margin-top:34px}
.preview-subtitle{text-align:center;font-size:18px;letter-spacing:11px;color:#77b7ff;margin-top:4px}
.presented{text-align:center;font-size:10px;letter-spacing:4px;color:#a5b5c8;margin-top:38px}
.certificate-preview h2{text-align:center;font-size:40px;margin:16px 0 14px}
.rule{height:1px;background:linear-gradient(90deg,transparent,#7890aa,transparent);margin:0 auto;width:72%}
.for{text-align:center;color:#b4c1cf;margin:18px 0 8px}
.certificate-preview h3{text-align:center;color:#3c9cff;font-size:21px;margin:0}
.desc{text-align:center;color:#aab8c8;font-size:13px;line-height:1.6;max-width:540px;margin:14px auto}
.preview-meta{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px;border-top:1px solid var(--line);padding-top:24px}
.preview-meta div{text-align:center}
.preview-meta small{display:block;color:#8398ad;font-size:9px;letter-spacing:2px;margin-bottom:8px}
.preview-meta strong{font-size:15px}

.result-section{padding:70px 0 90px}
.result-card,.not-found{
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(180deg,rgba(8,26,44,.92),rgba(4,17,30,.92));
  border-radius:20px;padding:34px;box-shadow:0 28px 80px rgba(0,0,0,.24)
}
.hidden{display:none}
.status-icon{
  width:54px;height:54px;border-radius:50%;display:grid;place-items:center;
  background:rgba(34,197,94,.10);border:1px solid rgba(34,197,94,.5);
  color:#65df88;font-size:28px;font-weight:800;margin-bottom:18px
}
.status-icon.danger{background:rgba(239,68,68,.10);border-color:rgba(239,68,68,.5);color:#ff7b7b}
.status-label{font-size:12px;letter-spacing:3px;color:#65df88;margin:0 0 10px}
.danger-text{color:#ff7b7b}
.result-main h2,.not-found h2{font-size:34px;margin:0 0 8px}
.result-program{font-size:18px;color:#b8c8d8;margin:0}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.result-item{padding:18px;border:1px solid var(--line);border-radius:14px;background:#061625}
.result-item span{display:block;color:#7f95ab;font-size:12px;margin-bottom:7px}
.result-item strong{font-size:16px}.valid{color:#65df88}
.result-footer{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.result-footer p{margin:0;color:#9eb0c3;max-width:720px;line-height:1.6}

footer{border-top:1px solid var(--line);padding:28px 0;color:#7f93a8;font-size:12px}
.footer-inner{display:flex;justify-content:space-between;gap:20px}

@media(max-width:980px){
  .nav nav{display:none}
  .hero-grid{grid-template-columns:1fr}
  h1{font-size:46px}
  .certificate-preview{min-height:auto}
}
@media(max-width:680px){
  .container{width:min(100% - 24px,1180px)}
  .nav{height:72px;gap:12px}
  .nav>.btn{display:none}
  h1{font-size:38px}
  .lead{font-size:16px}
  .verify-row{flex-direction:column}
  .verify-row input{min-height:48px}
  .certificate-preview{padding:24px 18px}
  .preview-title{font-size:38px}
  .certificate-preview h2{font-size:32px}
  .preview-meta,.result-grid{grid-template-columns:1fr}
  .result-footer{flex-direction:column;align-items:flex-start}
}
.certificate-preview{
  position:relative;
  padding-bottom:110px;
}

.preview-meta{
  padding-right:115px;
}

.preview-qr{
  position:absolute;
  right:28px;
  bottom:18px;
  width:105px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  z-index:5;
}

.preview-qr img{
  width:88px;
  height:88px;
  object-fit:contain;
  background:#fff;
  padding:5px;
  border:1px solid rgba(255,255,255,.7);
  border-radius:4px;
}

.preview-qr span{
  color:#d2dbe6;
  font-size:8px;
  line-height:1.35;
  letter-spacing:1px;
  text-align:center;
  white-space:nowrap;
}
.result-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}