:root { color-scheme: dark; --accent: #fff; } /* mesma cor do botão */

body {
  background: #000 url("ghost.jpg") center/cover no-repeat;
  margin: 0;
  min-height: 100vh;
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

@media (max-width: 767px){
  body{ background-image: url("mnefee.jpg"); }
}

/* máscara para legibilidade */

h1 {
  font-family: Helvetica, Arial, sans-serif;
  font-size: 2.5rem;
  margin: 0 0 20px 0;
  letter-spacing: 2px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: min(320px, 90vw);
  z-index: 1; /* acima da máscara */
}

input {
  padding: 12px;
  border-radius: 5px;
  border: none;
  font-size: 1rem;
}

button {
  padding: 12px;
  background-color: var(--accent);
  color: #000;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  transition: background .3s;
}

/* selo no canto */
.badge{
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  font-family: "Helvetica Neue", Helvetica, Arial, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: clamp(9px, 1vw, 12px);
  line-height: 1.2;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: .75;              /* quase invisível */
  text-align: right;
  pointer-events: none;      /* não interfere no clique do form */
}
.badge .sub{
  display: block;
  margin-top: 2px;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  opacity: .85;
}

button:hover { background-color: #ccc; }

/* honeypot acessível e invisível */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}