/* ============================
        VARIÁVEIS DE TEMA
    ============================ */
    :root {
      --preto: #0f0f0f;
      --preto-medio: #1a1a1a;
      --preto-claro: #2a2a2a;
      --cinza-texto: #cccccc;
      --vermelho: #e63946;
      --vermelho-claro: #ff6170;
      --amarelo: #ffc400;
      --raio: 18px;
      --trans: 0.25s ease;
    }

    /* ============================
        ESTILOS GERAIS
    ============================ */
    body {
      margin: 0;
      background-color: var(--preto-medio);
      font-family: Arial, sans-serif;
      color: white;
      overflow-x: hidden;
    }

    h2 {
      font-size: 2.5rem;
      margin-bottom: 10px;
      color: var(--amarelo);
      text-align: center;
    }

    p {
      line-height: 1.6;
    }

    section {
      padding: 80px 10%;
    }

    /* ============================
        MENU FIXO
    ============================ */
    .navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 40px;
      background: #000;
    }

    .logo {
      color: #fff;
      font-size: 22px;
      text-decoration: none;
      font-weight: bold;
    }

    /* menu desktop */
    .menu {
      display: flex;
      gap: 30px;
      list-style: none;
    }

    .menu a {
      color: #fff;
      text-decoration: none;
      font-size: 16px;
    }

    /* botão hamburguer (escondido no desktop) */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 28px;
      color: #fff;
      cursor: pointer;
    }

    /* ===== MOBILE ===== */
    @media (max-width: 768px) {

      /* esconde menu */
      .menu {
        display: none;
        position: absolute;
        top: 70px;
        right: 20px;
        background: #111;
        flex-direction: column;
        gap: 15px;
        padding: 20px;
        border-radius: 8px;
        width: 200px;
      }

      /* mostra hamburguer */
      .menu-toggle {
        display: block;
      }

      /* menu aberto */
      .menu.active {
        display: flex;
      }
    }

    /* ============================
        HEADER / HERO
    ============================ */
    header {
      height: 100vh;
      background: 
        linear-gradient(to bottom, rgba(0,0,0,0.4), var(--preto-medio)),
        url("academia01.jpg") center/cover no-repeat;
      display: flex;
      justify-content: center;
      align-items: center;
      flex-direction: column;
      text-align: center;
      padding-top: 80px;
    }

    header img {
      width: 180px;
      border-radius: 50%;
      margin-bottom: 20px;
      box-shadow: 0 0 25px var(--vermelho);
    }

    header h1 {
      font-size: 3.2rem;
      margin-bottom: 15px;
    }

    .btn {
      background: linear-gradient(90deg, var(--vermelho), var(--vermelho-claro));
      padding: 15px 40px;
      border-radius: var(--raio);
      color: #fff;
      font-weight: bold;
      font-size: 1.1rem;
      text-decoration: none;
      transition: var(--trans);
      margin-top: 15px;
      box-shadow: 0 0 15px rgba(230,57,70,0.35);
    }

    .btn:hover {
      transform: scale(1.08);
      box-shadow: 0 0 25px rgba(230,57,70,0.5);
    }

    /* ============================
        SOBRE / TEXTO + ÍCONES
    ============================ */
    .sobre-container {
      display: flex;
      flex-direction: column;
      gap: 40px;
      align-items: center;
    }

    .beneficios {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
      gap: 25px;
      width: 100%;
    }

    .beneficio-item {
      background-color: var(--preto-claro);
      padding: 25px;
      border-radius: var(--raio);
      text-align: center;
      transition: var(--trans);
      border: 1px solid #333;
    }

    .beneficio-item:hover {
      background-color: #333;
      transform: translateY(-5px);
    }

    .beneficio-item span {
      font-size: 2.5rem;
      margin-bottom: 12px;
      display: block;
      color: var(--amarelo);
    }

    /* ============================
        CARROSSEL MODERNO
    ============================ */
    .carrossel {
      overflow: hidden;
      width: 100%;
      border-radius: var(--raio);
      border: 2px solid var(--vermelho);
    }

    .carrossel-track {
      display: flex;
      width: max-content;
    }

    .carrossel img {
      width: 350px;
      height: 230px;
      object-fit: cover;
      flex-shrink: 0;
      border-right: 3px solid #000;
    }

    @keyframes slide {
      from {
        transform: translateX(0);
      }
      to {
        transform: translateX(-50%);
      }
    }
    /* ============================
        CARDS PERSONAIS
    ============================ */
    .cards {
      margin-top: 40px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    .card {
      background-color: var(--preto-claro);
      padding: 25px;
      border-radius: var(--raio);
      text-align: center;
      transition: var(--trans);
      border: 1px solid #333;
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: 0 0 25px rgba(255, 0, 0, 0.35);
    }

    .card img {
      width: 180px;
      height: 180px;
      object-fit: cover;
      border-radius: 50%;
      margin-bottom: 15px;
      border: 3px solid var(--vermelho);
    }

    /* ============================
        FOOTER
    ============================ */
    footer {
      background-color: var(--preto);
      text-align: center;
      padding: 40px 10%;
    }

    footer iframe {
      width: 100%;
      height: 220px;
      border-radius: var(--raio);
      border: none;
      margin-bottom: 25px;
    }

    footer .social {
      display: flex;
      justify-content: center;
      gap: 25px;
      margin-bottom: 20px;
    }

    footer a {
      color: white;
      text-decoration: none;
      font-size: 1.1rem;
      transition: var(--trans);
    }

    footer a:hover {
      color: var(--amarelo);
    }

    @media (max-width: 700px) {
      header h1 { font-size: 2rem; }
      header img { width: 140px; }
    }