:root{
  --bg1:#020617;
  --bg2:#0f172a;
  --glass:rgba(255,255,255,.08);
  --border:rgba(255,255,255,.15);
  --text:#e5e7eb;
  --accent:#38bdf8;
  --accent2:#22c55e;
}

*{box-sizing:border-box;font-family:Inter,system-ui}

body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(circle at top,#1e3a8a,transparent 45%),
    linear-gradient(135deg,var(--bg2),var(--bg1));
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  color:var(--text);
}

.card{
  width:100%;
  max-width:420px;
  background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid var(--border);
  border-radius:26px;
  padding:22px;
  box-shadow:0 30px 60px rgba(0,0,0,.45);
  text-align:center;
}

h1{
  margin-bottom:14px;
  font-size:1.6rem;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

input{
  width:100%;
  height:50px;
  text-align:center;
  font-size:20px;
  border-radius:16px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  color:white;
  outline:none;
}

input::placeholder{
  font-size:20px;
  opacity:.7;
}

button{
  width:100%;
  margin-top:14px;
  padding:14px;
  border:none;
  border-radius:16px;
  font-weight:600;
  cursor:pointer;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#020617;
}

.preview{
  margin-top:18px;
  display:none;
}

.preview img{
  max-width:100%;
  border-radius:20px;
  background:white;
  padding:10px;
}

.actions{
  margin-top:14px;
  display:none;
}

.actions a{
  display:block;
  padding:12px;
  border-radius:14px;
  text-decoration:none;
  font-weight:600;
  background:rgba(255,255,255,.08);
  color:white;
  border:1px solid var(--border);
  cursor:pointer;
}

.status{
  margin-top:10px;
  font-size:13px;
  opacity:.75;
}