* {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
      }

      body {
        font-family: "Poppins", sans-serif;
        color: #f9f9f9;
        background: radial-gradient(circle at top, #0a0a0a 60%, #000);
        overflow-x: hidden;
        transition: background 0.4s ease;
      }

      /* INTRO ANIMADA */
      .intro {
        position: fixed;
        z-index: 10;
        inset: 0;
        background: #000;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        text-align: center;
        transition: opacity 1s ease, visibility 1s ease;
        padding: 20px;
      }

      .intro h1 {
        font-size: clamp(40px, 8vw, 70px);
        color: #00aaff;
        text-shadow: 0 0 20px rgba(0, 170, 255, 0.8);
        letter-spacing: 3px;
        text-transform: uppercase;
        animation: glow 1.5s infinite alternate;
        word-wrap: break-word;
        line-height: 1.2;
      }

      .intro p {
        color: #fff;
        font-size: clamp(14px, 3vw, 20px);
        margin-top: 10px;
        opacity: 0.8;
        letter-spacing: 2px;
      }

      @keyframes glow {
        from {
          text-shadow: 0 0 10px #00aaff, 0 0 20px #00aaff, 0 0 40px #00aaff;
        }
        to {
          text-shadow: 0 0 20px #00ffff, 0 0 40px #00ffff, 0 0 80px #00ffff;
        }
      }

      .intro.hidden {
        opacity: 0;
        visibility: hidden;
      }

      /* FUNDO */
      .background {
        z-index: 1;
        top: -10%;
        left: -10%;
        width: 120%;
        height: 120%;
        position: fixed;
        background-image: url("../imagens/fundo.svg");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: 50%;
        transition: 0.6s;
        filter: brightness(0.5);
      }

      body.open .background {
        filter: blur(20px) brightness(0.3);
      }

      /* MENU HAMBURGUER */
      .burger {
        z-index: 4;
        top: 20px;
        left: 20px;
        display: grid;
        place-items: center;
        width: 60px;
        height: 60px;
        opacity: 0.8;
        transition: 0.3s;
        position: fixed;
      }

      .burger:hover {
        opacity: 1;
      }

      .burger-icon {
        position: relative;
        width: 32px;
        scale: 1.2;
        border: 0;
      }

      .burger-icon,
      .burger-icon::before,
      .burger-icon::after {
        display: block;
        border-radius: 2px;
        height: 2px;
        background: #f9f9f9;
        transition: 0.5s;
      }

      .burger-icon::before,
      .burger-icon::after {
        content: "";
        position: absolute;
        left: 0;
        width: 100%;
      }

      .burger-icon::before {
        top: -8px;
      }

      .burger-icon::after {
        top: 8px;
      }

      .burger input {
        position: absolute;
        scale: 0;
      }

      .burger input:checked ~ .burger-icon::before,
      .burger input:checked ~ .burger-icon::after {
        width: 20px;
      }

      .burger input:checked ~ .burger-icon::before {
        transform: rotate(-45deg) translate(-4px, -2px);
      }

      .burger input:checked ~ .burger-icon::after {
        transform: rotate(45deg) translate(-4px, 2px);
      }

      /* MENU */
      .menu {
        z-index: 3;
        inset: 0;
        display: grid;
        place-items: center;
        background: rgba(0, 0, 0, 0.85);
        translate: -100% 0;
        opacity: 0;
        visibility: hidden;
        transition: 0.6s ease;
        position: fixed;
      }

      body.open .menu {
        opacity: 1;
        translate: 0;
        visibility: visible;
      }

      .menu nav {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 60%;
      }

      .menu a {
        position: relative;
        color: #f9f9f9;
        font-size: clamp(22px, 5vw, 32px);
        font-weight: 500;
        padding: 18px 0;
        width: 100%;
        text-decoration: none;
        text-align: center;
        transition: 0.4s;
      }

      .menu nav:hover a {
        opacity: 0.25;
      }

      .menu nav a:hover {
        opacity: 1;
        padding-left: 10px;
      }

      .menu a::before,
      .menu a::after {
        content: "";
        position: absolute;
        right: 20px;
        top: 50%;
        translate: -10px -50%;
        width: 20px;
        height: 20px;
        opacity: 0;
        transition: 0.3s;
        background: #f7f7f7;
      }

      .menu a::before {
        border-radius: 2px;
        height: 2px;
        width: 30px;
        right: 18px;
      }

      .menu a::after {
        background: transparent;
        border: 2px solid #f7f7f7;
        border-bottom: 0;
        border-left: 0;
        rotate: 45deg;
      }

      .menu a:hover::before,
      .menu a:hover::after {
        opacity: 1;
        translate: 0 -50%;
      }

      /* CONTEÚDO PRINCIPAL */
      main {
        z-index: 2;
        position: relative;
        text-align: center;
        padding: 120px 20px;
        max-width: 900px;
        margin: auto;
        transition: 0.5s ease;
      }

      body.open main {
        filter: blur(6px) brightness(0.6);
        pointer-events: none;
      }

      main h1 {
        font-size: clamp(36px, 8vw, 60px);
        text-transform: uppercase;
        font-weight: 700;
        letter-spacing: 2px;
        color: #00aaff;
        text-shadow: 0 0 20px rgba(0, 170, 255, 0.6);
        margin-bottom: 40px;
      }

      main p {
        color: #ddd;
        font-size: clamp(14px, 3vw, 18px);
        line-height: 1.7;
        margin-bottom: 20px;
      }

      main strong {
        color: #00aaff;
      }

      main p:last-child {
        color: #00aaff;
        font-style: italic;
        margin-top: 40px;
      }