:root{
  --ink:#101820;
  --muted:#64717d;
  --paper:#f5f7f9;
  --paper-strong:#ffffff;
  --forest:#00a8b5;
  --forest-2:#101820;
  --lime:#00e0c7;
  --amber:#f3f6f8;
  --clay:#ef4b3f;
  --line:#dce3e8;
  --shadow:0 28px 90px rgba(16,24,32,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:"Avenir Next","Trebuchet MS",Verdana,sans-serif;
  background:
    radial-gradient(circle at 8% 8%,rgba(0,224,199,.38) 0 9rem,transparent 9.2rem),
    radial-gradient(circle at 88% 4%,rgba(0,168,181,.25) 0 12rem,transparent 12.2rem),
    linear-gradient(135deg,#f7fafc 0%,#eef4f7 48%,#ffffff 100%);
  min-height:100vh;
}
body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(0,168,181,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(0,168,181,.07) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),rgba(0,0,0,.12));
}
main{max-width:1180px;margin:auto;padding:30px}
.hero{min-height:82vh;display:grid;grid-template-columns:minmax(0,1.2fr) 380px;gap:34px;align-items:center}
.hero-copy{animation:rise .55s ease both}
.eyebrow{margin:0 0 10px;letter-spacing:.18em;text-transform:uppercase;color:var(--forest);font-size:12px;font-weight:900}
h1,h2,h3{margin:0;color:var(--ink);letter-spacing:-.045em}
h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(48px,8vw,96px);line-height:.88;max-width:820px}
h2{font-size:clamp(34px,5vw,56px)}
h3{font-size:24px}
p{color:var(--muted)}
.lede{max-width:640px;font-size:20px;line-height:1.55}
a,button{
  border:0;
  background:var(--forest);
  color:white;
  padding:13px 18px;
  border-radius:999px;
  text-decoration:none;
  cursor:pointer;
  font-weight:900;
  box-shadow:0 10px 24px rgba(0,168,181,.22);
  transition:transform .18s ease,filter .18s ease,box-shadow .18s ease;
}
a:hover,button:hover{filter:brightness(.96);transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,168,181,.28)}
button:disabled,select:disabled{opacity:.72;cursor:not-allowed}
.ghost{background:rgba(255,255,255,.72);color:var(--forest-2);border:1px solid rgba(0,168,181,.34);box-shadow:none}
.danger{background:var(--clay)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.card,.panel,.module{
  background:rgba(255,255,255,.82);
  border:1px solid rgba(220,227,232,.96);
  border-radius:32px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
}
.card{padding:24px;animation:rise .65s ease .08s both}
.card-head,.module-head,.panel-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.card-head span,.module-head span{color:var(--muted);font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.12em}
.card-head b{font-family:Georgia,"Times New Roman",serif;font-size:30px;line-height:1}
.qr-card{position:relative;overflow:hidden}
.qr-card:before{content:"";position:absolute;right:-70px;top:-70px;width:180px;height:180px;border-radius:50%;background:linear-gradient(135deg,var(--lime),var(--forest));z-index:-1}
input,select{
  width:100%;
  min-height:48px;
  padding:13px 14px;
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(255,255,255,.82);
  color:var(--ink);
  outline:none;
}
input:focus,select:focus{border-color:var(--forest);box-shadow:0 0 0 4px rgba(0,224,199,.24)}
img{max-width:230px;display:block;margin-top:18px;border-radius:20px}
.app-shell{padding:26px;margin-bottom:42px}
.panel-top{align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:18px}
nav{display:flex;gap:9px;flex-wrap:wrap;justify-content:flex-end}
.auth-box form,.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0}
.auth-box button,.form-grid button{justify-self:start}
.identity-pill{display:inline-flex;max-width:100%;padding:10px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72);color:var(--forest);font-weight:800;margin-bottom:16px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:16px 0 22px}
.stats div{background:var(--forest-2);color:white;border-radius:24px;padding:18px;min-height:100px;display:flex;flex-direction:column;justify-content:space-between}
.stats b{display:block;font-family:Georgia,"Times New Roman",serif;font-size:42px;line-height:.9;color:var(--lime)}
.stats span{color:rgba(255,255,255,.78);font-size:12px;text-transform:capitalize;font-weight:800}
.grid{display:grid;gap:16px;margin:16px 0}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.module{padding:20px;box-shadow:0 18px 45px rgba(30,40,32,.08)}
.feature-module{margin:16px 0}
.links-form{grid-template-columns:2fr 1fr 1fr auto;align-items:center}
.list{display:grid;gap:10px;margin-top:12px}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:10px;align-items:center;border:1px solid rgba(220,227,232,.9);background:rgba(255,255,255,.56);border-radius:18px;padding:12px}
.row a{display:inline-block;background:transparent;color:var(--forest);box-shadow:none;padding:0;border-radius:0;font-weight:900;overflow-wrap:anywhere}
.row button{padding:10px 13px}
.tiny{font-size:12px;color:var(--muted);line-height:1.45;overflow-wrap:anywhere}
pre{white-space:pre-wrap;background:#14231d;color:#eaffef;padding:14px;border-radius:18px;overflow:auto;border:1px solid rgba(0,224,199,.22)}
#msg:empty,#newKey:empty{display:none}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media(max-width:900px){
  .hero{grid-template-columns:1fr;min-height:auto;padding:52px 0 24px}
  .grid.two,.links-form,.auth-box form,.form-grid{grid-template-columns:1fr}
  .panel-top{align-items:flex-start;flex-direction:column}
  nav{justify-content:flex-start}
}
@media(max-width:560px){
  main{padding:16px}
  h1{font-size:46px}
  .card,.panel,.module{border-radius:24px}
  .app-shell{padding:16px}
  .row{grid-template-columns:1fr}
  a,button{width:100%;text-align:center}
  .identity-pill{border-radius:18px}
}