body {
  text-align: center;
  font-family: sans-serif;
  background: hsl(0, 0%, 0%);
}

.botao1 {
  color: #fff;
  cursor: pointer;
  background-color: #007bff;
  border: none;
  border-radius: 4px;
  width: 200px;
  padding: .5rem 1rem;
  font-size: 1rem;
  transition: background-color .3s
}

.botao1:hover {
  background-color: #0056b3
}

.toolbar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  margin-bottom: 10px;
}

.toolbar-section {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.operacao-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

canvas {
  display: block;
  margin: 0 auto;
}

.login-container {
  background-color: #f9f9f9;
  border-radius: 12px;
  max-width: 400px;
  margin: 5rem auto;
  padding: 2rem;
  font-family: Segoe UI, sans-serif;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .1)
}

.login-container h2 {
  text-align: center;
  color: #333;
  margin-bottom: 1.5rem
}

.login-container label {
  color: #555;
  margin-bottom: .5rem;
  font-weight: 600;
  display: block
}

.login-container input {
  border: 1px solid #ccc;
  border-radius: 6px;
  width: 100%;
  margin-bottom: 1rem;
  padding: .6rem;
  font-size: 1rem
}

.login-container button {
  color: #fff;
  cursor: pointer;
  background-color: #007bff;
  border: none;
  border-radius: 6px;
  width: 100%;
  padding: .8rem;
  font-size: 1rem;
  transition: background-color .3s
}

.login-container button:hover {
  background-color: #0056b3
}

.login-message {
  text-align: center;
  color: #d9534f;
  margin-top: 1rem;
  font-weight: 700
}

.login-links {
  justify-content: space-between;
  margin-top: 1.5rem;
  display: flex
}

.login-links button {
  color: #fff;
  cursor: pointer;
  background-color: #6c757d;
  border: none;
  border-radius: 6px;
  padding: .6rem 1rem;
  font-size: .9rem;
  transition: background-color .3s
}

.login-links button:hover {
  background-color: #5a6268
}

.painel-container {
  text-align: center;
  color: #333;
  margin: 4rem auto;
  font-family: Segoe UI, sans-serif;
  font-size: 1.8rem
}

.data-hora {
  color: #2c3e50;
  background-color: #f0f0f0;
  border-radius: 8px;
  padding: .8rem 1.2rem;
  font-family: Segoe UI, sans-serif;
  font-size: 1.2rem;
  display: inline-block;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .1)
}

label {
  margin-right: .5rem;
  font-weight: 700
}

.valor {
  color: #34495e
}

.btn {
  padding: 8px 14px;
  margin: 4px;
  border-radius: 8px;
  border: 1px solid #ccc;
  background: #eee;
  cursor: pointer;
  font-size: 18px;
}

.btn.active {
  background: #4CAF50;
  color: white;
  border-color: #3e8e41;
}

/* Timer */
.timer {
  color: #f0f0f0;
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 0.5rem;
}

.timer__icon {
  margin-right: 0.4rem;
}

.timer__display {
  font-family: monospace;
  letter-spacing: 0.05em;
}

/* HUD — acertos e pontos */
/*.btn-reiniciar {
  margin-top: 0.5rem;
  padding: 0.4rem 1.2rem;
  background: #2e7d32;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
}*/

.btn-reiniciar {
  padding: 0.4rem 1.2rem;
  background: #1565c0;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
}

.btn-seguinte {
  padding: 0.4rem 1.2rem;
  background: #2e7d32;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
}

.score-final {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  color: #f0f0f0;
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  padding-left: 2rem;
}

.score-final p {
  margin: 0.1rem 0;
  /* ← controla o espaço entre linhas */
}

.score-final span {
  background: rgba(255, 255, 255, 0.08);
  /* leve destaque no fundo preto */
  padding: 0.25rem 0.75rem;
  border-radius: 8px;
}

.btn-modo {
  padding: 0.5rem 1.4rem;
  background: #1a1a2e;
  color: #f0f0f0;
  border: 2px solid #f0f0f0;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.btn-modo:hover {
  background: #16213e;
  border-color: #ffd700;
  color: #ffd700;
}

.btn-modo.active {
  background: #2e7d32;
  border-color: #2e7d32;
  color: #fff;
}