:root{
  --navy:#0a3556; --navy-deep:#072740; --teal:#1a8ea3; --teal-light:#3bb0c4;
  --gold:#f0a81e; --cream:#f1eee7; --paper:#fbfaf7; --branco:#fff;
  --texto:#16293a; --mut:#647c90; --critico:#c64530; --turq:#1f9d6b;
  --linha:rgba(10,53,86,.12);
}
*{box-sizing:border-box}
body{
  margin:0;min-height:100vh;font-family:'Poppins',system-ui,-apple-system,sans-serif;
  color:var(--texto);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased;
  display:flex;align-items:center;justify-content:center;padding:32px 20px;
  background:radial-gradient(900px 500px at 78% -6%,rgba(59,176,196,.32),transparent 62%),
             linear-gradient(120deg,var(--navy-deep) 0%,var(--navy) 48%,#0f4f6e 100%);
}
body::after{
  content:"";position:fixed;inset:0;opacity:.45;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1.1px,transparent 1.2px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(100deg,#000,transparent 78%);
  mask-image:linear-gradient(100deg,#000,transparent 78%);
}
.cartao{
  position:relative;z-index:2;width:100%;max-width:430px;background:var(--paper);
  border-radius:24px;padding:38px 34px 32px;border-top:4px solid var(--gold);
  box-shadow:0 32px 80px -32px rgba(4,22,38,.65);
}
.marca{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal);font-weight:600}
h1{font-size:23px;line-height:1.25;margin:8px 0 6px;color:var(--navy);font-weight:600;letter-spacing:-.01em}
.sub{color:var(--mut);font-size:13px;margin:0 0 26px}
label{display:block;font-size:12px;font-weight:600;color:var(--navy);margin:0 0 6px;letter-spacing:.01em}
.campo{margin-bottom:16px}
input{
  width:100%;padding:12px 14px;border:1.5px solid var(--linha);border-radius:13px;
  font-family:inherit;font-size:14px;color:var(--texto);background:var(--branco);
  transition:border-color .16s,box-shadow .16s;
}
input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3.5px rgba(26,142,163,.14)}
input::placeholder{color:#9fb0be}
.dica{font-size:11.5px;color:var(--mut);margin:5px 0 0}
button{
  width:100%;margin-top:10px;padding:13px 16px;border:0;border-radius:13px;cursor:pointer;
  font-family:inherit;font-size:14px;font-weight:600;color:#fff;letter-spacing:.01em;
  background:linear-gradient(120deg,var(--navy) 0%,var(--teal) 130%);
  transition:transform .14s,box-shadow .14s,filter .14s;
}
button:hover{filter:brightness(1.08);box-shadow:0 14px 30px -14px rgba(10,53,86,.6)}
button:active{transform:translateY(1px)}
.aviso{
  padding:11px 14px;border-radius:13px;font-size:12.5px;margin:0 0 20px;
  border-left:3px solid;line-height:1.5;
}
.erro{background:#F7E1DC;border-color:var(--critico);color:#8d2e1f}
.ok{background:#DCF0E6;border-color:var(--turq);color:#14603f}
.info{background:#FBEBCB;border-color:var(--gold);color:#8a5c05}
.rodape{margin-top:24px;padding-top:18px;border-top:1px solid var(--linha);font-size:12.5px;color:var(--mut);text-align:center}
.rodape a{color:var(--teal);font-weight:600;text-decoration:none}
.rodape a:hover{text-decoration:underline}
@media(max-width:420px){.cartao{padding:30px 24px 26px}h1{font-size:20px}}