:root{
  --bg:#f7f7f9;
  --card:#fff;
  --border:#d0d7de;
  --btn:#198754;
  --btnText:#fff;
  --msgBg:#eef6ff;
  --msgTxt:#084298;
  --msgBd:#b6d4fe;
  --error:#b42318;
  --link:#0d6efd;
}

*{
  box-sizing:border-box;
}

body{
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  margin:0;
}

.container{
  max-width:720px;
  margin:48px auto;
  background:var(--card);
  border-radius:12px;
  box-shadow:0 6px 24px rgba(0,0,0,.06);
  padding:32px;
}

h1{
  margin-top:0;
}

label{
  display:block;
  margin:.5rem 0 .25rem;
}

input[type=text],
input[type=email]{
  width:100%;
  padding:10px;
  border:1px solid var(--border);
  border-radius:8px;
}

button{
  margin-top:16px;
  padding:12px 18px;
  border-radius:8px;
  border:0;
  background:var(--btn);
  color:var(--btnText);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-width:220px;
}

button[disabled]{
  opacity:.7;
  cursor:not-allowed;
}

.msg{
  padding:12px 14px;
  border-radius:8px;
  background:var(--msgBg);
  color:var(--msgTxt);
  border:1px solid var(--msgBd);
  margin-bottom:16px;
}

a{
  color:var(--link);
  text-decoration:none;
}

a:hover{
  text-decoration:underline;
}

.termos-box{
  margin:14px 0 18px;
}

.termos-check{
  display:flex;
  align-items:flex-start;
  gap:10px;
  line-height:1.5;
  font-size:14px;
}

.termos-check input[type="checkbox"]{
  margin-top:3px;
  flex:0 0 auto;
}

.field-error{
  color:var(--error);
  font-size:13px;
  margin-top:6px;
  display:none;
}

.field-error.show{
  display:block;
}

.voltar-wrap{
  margin-top:16px;
}

/* Spinner */
.spinner{
  display:none;
  width:18px;
  height:18px;
  border:2px solid rgba(255,255,255,.9);
  border-right-color:transparent;
  border-radius:50%;
  vertical-align:middle;
  animation:spin .8s linear infinite;
}

@keyframes spin{
  to{ transform:rotate(360deg); }
}

button.is-loading .spinner{
  display:inline-block;
}

@media (max-width: 768px){
  .container{
    margin:20px 12px;
    padding:20px;
  }

  button{
    width:100%;
  }
}