:root {
  color-scheme: light;
  --petroleo: #17364a;
  --petroleo-2: #214d65;
  --teal: #2e8f83;
  --fundo: #f4f9f8;
  --borda: #d8e6e3;
  --texto: #435f6d;
  --fraco: #78909a;
  --erro: #a23f3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--fundo);
  color: var(--texto);
  font: 15px/1.5 "Segoe UI", system-ui, -apple-system, sans-serif;
}
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(100%, 430px);
  padding: 34px;
  border: 1px solid var(--borda);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 55px rgba(23, 54, 74, .09);
}
.marca { display: flex; align-items: center; gap: 10px; color: var(--petroleo); font-size: 21px; }
.marca span {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 2px solid var(--teal);
  border-radius: 9px 9px 9px 2px;
  color: var(--teal);
  font-weight: 800;
}
.contexto {
  margin: 22px 0 4px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1 { margin: 0; color: var(--petroleo); font-size: 24px; line-height: 1.25; }
.apoio { margin: 10px 0 22px; color: var(--fraco); }
.estado { padding: 13px 0; color: var(--fraco); }
label { display: block; margin: 14px 0 6px; color: var(--petroleo); font-size: 13px; font-weight: 650; }
input {
  width: 100%;
  min-height: 46px;
  padding: 10px 13px;
  border: 1px solid #c8dad7;
  border-radius: 10px;
  color: var(--petroleo);
  font: inherit;
}
input:focus { outline: 0; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(46, 143, 131, .13); }
button {
  width: 100%;
  min-height: 48px;
  margin-top: 20px;
  border: 0;
  border-radius: 10px;
  background: var(--petroleo);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
button:hover:not(:disabled) { background: var(--petroleo-2); }
button:disabled { cursor: wait; opacity: .55; }
.erro { margin: 15px 0 0; color: var(--erro); font-size: 13px; }
[hidden] { display: none !important; }
@media (max-width: 520px) {
  .login-shell { padding: 14px; }
  .login-card { padding: 26px 22px; }
}