/* Tema geral */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #121212;
  color: #f5f5f5;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Header */
header {
  background: #1e1e1e;
  width: 100%;
  padding: 20px;
  text-align: center;
  border-bottom: 2px solid #333;
}

h1 {
  margin: 0;
  color: #4cafef;
  font-size: 2rem;
}

/* Navegação */
nav ul {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

nav ul li {
  display: inline-block;
  margin: 0 15px;
}

nav ul li a {
  color: #4cafef;
  text-decoration: none;
  font-weight: bold;
}

nav ul li a:hover {
  text-decoration: underline;
}

/* Caixa principal do timer */
#clock {
  background: #1f1f1f;
  margin-top: 20px;
  padding: 25px;
  border-radius: 14px;
  box-shadow: 0px 4px 12px rgba(0,0,0,0.5);
  width: 340px;
  text-align: center;
}

/* Display do timer */
#timer {
  font-size: 2.2rem;
  margin-bottom: 20px;
  font-family: monospace;
  color: #00ffcc;
  letter-spacing: 2px;
}

/* Inputs */
#input-numbers, 
#reminder {
  margin-bottom: 15px;
}

#input-numbers input,
#reminder input {
  width: 70px;
  margin: 5px;
  padding: 8px;
  border: none;
  border-radius: 6px;
  background: #2b2b2b;
  color: #fff;
  text-align: center;
  font-size: 0.9rem;
}

/* Botões */
button {
  background: #4cafef;
  color: #fff;
  border: none;
  padding: 10px 15px;
  margin: 5px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s;
}

button:hover {
  background: #3c8ac9;
}

#toggle-theme {
  position: fixed;
  top: 15px;
  right: 15px;
  font-size: 1.2rem;
  padding: 8px;
}

/* Input de tarefa concluída */
#task-completed {
  margin-top: 15px;
}

#task-completed input {
  width: 65%;
  padding: 8px;
  border: none;
  border-radius: 6px;
  background: #2b2b2b;
  color: #fff;
  margin-right: 8px;
}

output {
  color: white;
  font-size: 5rem;
}