:root {
  color-scheme: light;
  --paper: #F5F2EB;
  --paper-white: #FFFFFF;
  --ink: #1F2D27;
  --ink-hover: #36493F;
  --ink-soft: #5B6A63;
  --line: #E1DCD0;
  --gold: #9A6A0E;
  --green: #2B7A4E;
  --red: #B5432E;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 8vh 16px 40px;
}

.caixa {
  width: 100%;
  max-width: 460px;
  background: var(--paper-white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--ink);
  padding: 32px 32px 28px;
  box-shadow: 0 18px 50px rgba(31, 45, 39, 0.08);
}

header { margin-bottom: 22px; }

.selo {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid currentColor;
  padding: 2px 8px;
  margin-bottom: 12px;
}

h1 {
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 700;
  font-size: 26px;
  line-height: 1.15;
  margin: 0;
}

header p { margin: 6px 0 0; color: var(--ink-soft); font-size: 13.5px; }

.abas {
  display: flex;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
  gap: 4px;
}

.abas button {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 10px 4px;
  font: inherit;
  font-size: 13.5px;
  color: var(--ink-soft);
  cursor: pointer;
}
.abas button:hover { color: var(--ink); }
.abas button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--ink); font-weight: 600; }

.painel[hidden] { display: none; }

label { display: block; font-size: 12.5px; font-weight: 500; color: var(--ink-soft); margin: 14px 0 5px; }

input:not([type=checkbox]) {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-bottom: 1px solid var(--ink-soft);
  padding: 10px 12px;
  border-radius: 0;
}
input:focus { outline: 2px solid var(--ink); outline-offset: -1px; background: var(--paper-white); }

.senha { position: relative; }
.senha input { padding-right: 78px; }
.ver-senha {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: none; font: inherit; font-size: 12px; color: var(--ink-soft);
  cursor: pointer; padding: 6px 8px;
}
.ver-senha:hover { color: var(--ink); }

.check { display: flex; align-items: center; gap: 8px; font-weight: 400; color: var(--ink); font-size: 13.5px; margin-top: 14px; }

.duas { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }

.principal {
  width: 100%;
  margin-top: 22px;
  background: var(--ink);
  color: var(--paper-white);
  border: none;
  padding: 12px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.principal:hover { background: var(--ink-hover); }
.principal:disabled { opacity: .7; cursor: wait; }

.intro { margin: 0 0 4px; color: var(--ink-soft); font-size: 13.5px; }
.dica { margin: 6px 0 0; font-size: 12px; color: var(--ink-soft); }
.rodape { margin: 18px 0 0; font-size: 13px; color: var(--ink-soft); text-align: center; }
a { color: var(--ink); }

.msg {
  padding: 11px 14px;
  margin-bottom: 18px;
  font-size: 13.5px;
  border-left: 3px solid;
}
.msg-erro { background: #FBEDEA; border-color: var(--red); color: #7A2B1D; }
.msg-ok { background: #E9F4EE; border-color: var(--green); color: #1D5236; }

.isca { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

@media (max-width: 520px) {
  body { padding-top: 24px; }
  .caixa { padding: 24px 18px; }
  .duas { grid-template-columns: 1fr; }
  .abas button { font-size: 12.5px; }
}