* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #202020;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
}

.urna {
  width: 720px;
  max-width: 95%;
  background: #f2f2f2;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}

header {
  padding: 22px;
  background: #171717;
  color: white;
}

header h1 {
  margin: 0 0 8px;
}

.aviso {
  font-size: 12px;
  font-weight: bold;
  color: #ffcc00;
}

section {
  padding: 30px;
}

.candidatos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.candidato,
.acoes button {
  border: 1px solid #aaa;
  background: white;
  padding: 20px;
  cursor: pointer;
  border-radius: 8px;
}

.candidato:hover,
.acoes button:hover {
  background: #e7e7e7;
}

.candidato strong {
  display: block;
  font-size: 35px;
  margin-bottom: 8px;
}

.candidato span {
  font-size: 18px;
}

.acoes {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.acoes button {
  flex: 1;
}

#mensagem {
  font-weight: bold;
  margin-top: 25px;
}

footer {
  padding: 15px;
  text-align: center;
  background: #ddd;
  font-size: 12px;
}

button:disabled {
  opacity: .45;
  cursor: not-allowed;
}

@media (max-width: 600px) {
  .candidatos {
    grid-template-columns: 1fr;
  }
}