@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@100;400;500;600;700;800&display=swap");

      body {
        font-family: "Poppins", sans-serif;
        max-width: 800px;
        margin: 0 auto;
        padding: 20px;
        background: url("images/fondo4.jpg");
      }

      .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background-color: rgb(1, 1, 1, 0.7);
        padding: 0px 10%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        z-index: 1000;
      }
      .logo {
        font-size: 25px;
        text-transform: uppercase;
        color: #ffffff;
        font-weight: 700;
      }
      .navigation ul {
        list-style: none;
      }
      .header .navigation ul li {
        float: left;
        position: relative;
      }
      .header .navigation ul li a {
        font-size: 18px;
        color: #ffffff;
        text-decoration: none;
        padding: 20px;
        display: block;
        transition: all 0.2s ease;
      }
      .header .navigation ul li a:hover {
        background-color: #fe615c;
      }
      .header .navigation ul li ul {
        position: absolute;
        right: 0;
        width: 300px;
        background-color: rgba(1, 1, 1, 0.7);
        display: none;
      }

      .header .navigation ul li ul li a {
        font-size: 15px;
        text-transform: capitalize;
      }
      .header .navigation ul li ul li ul {
        position: absolute;
        top: 0;
        right: 300px;
      }
      .header .navigation ul li ul li {
        width: 100%;
      }
      .header .navigation ul li:hover > ul {
        display: initial;
      }
      #toggle,
      .header label {
        display: none;
        cursor: pointer;
      }
      .menu {
        width: 45px;
        height: 35px;
      }
      @media (max-width: 950px) {
        .header label {
          display: initial;
        }
        .header {
          padding: 20px 10%;
        }
        .header .navigation {
          position: absolute;
          top: 100%;
          left: 0;
          right: 0;
          background-color: rgba(1, 1, 1, 0.7);
          display: none;
        }
        .header .navigation ul li {
          width: 100%;
        }
        .header .navigation ul li a {
          padding: 8px 30px 8px 10%;
        }
        .header .navigation ul li ul {
          position: relative;
          width: 100%;
          left: 0;
        }
        .header .navigation ul li ul li {
          background-color: rgba(197, 193, 193, 0.7);
        }
        .header .navigation ul li ul li ul {
          position: relative;
          width: 100%;
          left: 0;
        }
        #toggle:checked ~ .navigation {
          display: block;
        }
      }

      .game-container {
        background: white;
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        margin-top: 200px;
      }
      h1 {
        color: #2c3e50;
        text-align: center;
      }
      .question-container {
        margin: 60px 0;
        text-align: center;
      }
      .options-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin: 20px 0;
      }
      .option {
        background-color: #3498db;
        color: white;
        border: none;
        border-radius: 5px;
        padding: 10px;
        font-size: 16px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.2s;
      }
      .option:hover {
        background-color: #59b3f0;
        transform: scale(1.05);
      }
      .feedback {
        text-align: center;
        font-weight: bold;
        min-height: 30px;
        margin: 10px 0;
      }
      .correct {
        color: #27ae60;
      }
      .incorrect {
        color: #c0392b;
      }
      .stats {
        display: flex;
        justify-content: space-between;
        margin-top: 20px;
        padding-top: 10px;
        border-top: 1px solid #ddd;
      }
      .next-btn {
        background-color: #2ecc71;
        color: white;
        border: none;
        border-radius: 5px;
        padding: 10px 20px;
        font-size: 16px;
        cursor: pointer;
        display: block;
        margin: 20px auto;
        transition: background-color 0.3s;
      }
      .next-btn:hover {
        background-color: #27ae60;
      }
      .hidden {
        display: none;
      }
      .example-container {
        background-color: #f9f9f9;
        border-left: 4px solid #3498db;
        padding: 10px;
        margin: 10px 0;
        font-style: italic;
      }
      .verb-count {
        text-align: center;
        font-size: 14px;
        color: #7f8c8d;
        margin-top: 5px;
      }
      .menu-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        margin: 15px 0;
      }
      .menu-option {
        background-color: #34495e;
        color: white;
        border: none;
        border-radius: 5px;
        padding: 10px 15px;
        font-size: 14px;
        cursor: pointer;
        transition: background-color 0.3s;
      }
      .menu-option:hover {
        background-color: #2c3e50;
      }
      .menu-option.active {
        background-color: #f7260f;
      }
      .verb-form-indicator {
        text-align: center;
        font-size: 16px;
        font-weight: bold;
        color: #e74c3c;
        margin: 10px 0;
      }
      table.verb-conjugation {
        width: 100%;
        border-collapse: collapse;
        margin: 15px 0;
      }
      table.verb-conjugation th,
      table.verb-conjugation td {
        border: 1px solid #ddd;
        padding: 8px;
        text-align: center;
      }
      table.verb-conjugation th {
        background-color: #f2f2f2;
      }
      .conjugation-container {
        margin-top: 20px;
        display: none;
      }