/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body, html {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(to bottom, #0f0f0f, #1a1a1a);
    color: #f5f5f5;
    overflow-x: hidden;
  }
  
  /* Container principal */
  .container {
    padding: 2rem;
  }
  
  /* HERO / VÍDEO */
  .hero {
    text-align: center;
    padding: 4rem 1rem 2rem;
  }
  
  .title {
    font-size: 2.5rem;
    font-weight: bold;
  }
  
  .title span {
    color: #00c6ff;
  }
  
  .subtitle {
    font-size: 1.1rem;
    margin-top: 1rem;
    color: #d1d5db;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .cta {
    margin-top: 2rem;
    background-color: #00c6ff;
    color: #000;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: 0.3s;
  }
  
  .cta:hover {
    background-color: #009ac7;
  }
  
  .videoDemo {
    margin: 3rem auto;
    max-width: 720px;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 198, 255, 0.3);
  }
  
  .videoDemo video {
    width: 100%;
    height: auto;
    border-radius: 12px;
  }
  
  /* Testemunho */
  .testimonial {
    font-style: italic;
    font-size: 1rem;
    margin-top: 2rem;
    color: #a1a1aa;
    padding: 0 1rem;
  }
  
  .testimonial footer {
    font-weight: bold;
    margin-top: 0.5rem;
    color: #fff;
  }
  
  /* FEATURES */
  .features {
    background: #111;
    padding: 4rem 1rem;
    border-radius: 12px;
    margin-top: 3rem;
  }
  
  .features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #00c6ff;
  }
  
  .cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
  }
  
  .card {
    background: #1f1f1f;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    width: 100%;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    transition: 0.3s;
  }
  
  .card:hover {
    transform: translateY(-5px);
    background: #272727;
  }
  
  .card h3 {
    color: #00c6ff;
    margin-bottom: 0.5rem;
  }
  
  .card p {
    color: #d4d4d4;
    font-size: 0.95rem;
  }
  
  @media (min-width: 481px) {
    .card {
      width: calc(50% - 1rem);
    }
  }
  
  @media (min-width: 768px) {
    .card {
      width: calc(33.333% - 1rem);
    }
  }
  
  /* FAQ */
  .faq {
    margin-top: 4rem;
    padding: 2rem 1rem;
    background: #121212;
    border-radius: 10px;
  }
  
  .faq h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #00c6ff;
  }
  
  .faqItem {
    margin-bottom: 1rem;
    background: #1e1e1e;
    padding: 1rem;
    border-radius: 6px;
    cursor: pointer;
    color: #f5f5f5;
  }
  
  .faqItem summary {
    font-weight: bold;
    color: #00c6ff;
    margin-bottom: 0.5rem;
  }
  
  .faqItem p {
    margin-top: 0.5rem;
    font-size: 0.95rem;
    color: #d4d4d4;
  }
  
  /* Responsivo */
  @media (max-width: 600px) {
    .title {
      font-size: 2rem;
    }
  
    .subtitle {
      font-size: 1rem;
    }
  
    .cta {
      padding: 0.6rem 1.5rem;
      font-size: 1rem;
    }
  }