/*Transição*/
html {
    scroll-behavior: smooth;
  }
  
  body {
    transition: background-color 0.4s ease, color 0.4s ease;
  }
  

/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /* Variáveis de tema */
  :root {
    --bg-color: #121212;
    --text-color: #ff6e27;
    --card-bg: #1e1e1e;
    --input-bg: #2b2b2b;
    --hover-bg: #e65c1f;
    --result-color: #ff6e27;
  }
  
  /* Tema claro */
  body.light-mode {
    --bg-color: #f5f5f5;
    --text-color: #333;
    --card-bg: #ffffff;
    --input-bg: #eaeaea;
    --hover-bg: #ff6e27;
    --result-color: #ff6e27;
  }

  /* Estilo base */
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    text-align: center;
    padding-top: 120px;
    padding-bottom: 80px;
    transition: background 0.3s ease, color 0.3s ease;
  }
  
  /* Cabeçalho */
  .header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--card-bg);
    padding: 20px 0;
    z-index: 999;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  }
  
  .header h1 {
    margin-bottom: 10px;
    font-size: 28px;
    color: var(--text-color);
  }
  
  .navbar a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
    transition: all 0.3s ease;
  }
  
  .navbar a:hover {
    color: #fff;
    transform: scale(1.05);
  }
  
  /* Botão de alternância */
  #theme-toggle {
    background: none;
    border: 2px solid var(--text-color);
    border-radius: 100%;
    color: var(--text-color);
    font-size: 18px;
    cursor: pointer;
    padding: 6px 10px;
    margin-left: 10px;
    transition: all 0.3s ease;
  }
  
  #theme-toggle:hover {
    background-color: var(--text-color);
    color: var(--card-bg);
  }
  
  /* Imagem do topo */
  .img-header {
    max-width: 90%;
    border-radius: 12px;
    margin: 30px auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
    display: block;
  }
  
  /* Texto de conteúdo */
  .text-content {
    background-color: var(--card-bg);
    padding: 40px;
    max-width: 700px;
    margin: 40px auto;
    border-radius: 15px;
    color: var(--text-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    line-height: 1.6;
    font-size: 18px;
  }
  
  /* Formulário */
  .container {
    background-color: var(--card-bg);
    padding: 40px 30px;
    max-width: 500px;
    margin: 40px auto;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  }
  
  .container h2 {
    margin-bottom: 20px;
  }
  
  form {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }
  
  label {
    text-align: left;
    color: var(--text-color);
    font-weight: bold;
  }
  
  input, select {
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--input-bg);
    color: var(--text-color);
  }
  
  button {
    background-color: var(--text-color);
    color: #fff;
    padding: 12px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  button:hover {
    background-color: var(--hover-bg);
    transform: scale(1.03);
  }
  
  #resultado {
    margin-top: 20px;
    font-size: 20px;
    color: #fff;
    color: var(--result-color);
  }
  
  /* Rodapé */
  .footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: var(--card-bg);
    padding: 15px 0;
    color: var(--text-color);
    font-size: 14px;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.6);
  }
  
  /* Responsividade */
  @media (max-width: 600px) {
    .header h1 {
      font-size: 22px;
    }
  
    .navbar a {
      margin: 0 8px;
      font-size: 16px;
    }
  
    .container, .text-content {
      margin: 20px;
      padding: 20px;
    }
  
    button {
      font-size: 14px;
    }
  }