:root {
      --cor-fundo: #000000;
    }

    body {
      margin: 0;
      padding: 0;
      color: rgb(255, 255, 255);
      font-family: Arial, sans-serif;
      background-color: var(--cor-fundo);
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      overflow: hidden;
    }

    #center-scene {
      position: relative;
      width: 270px;
      height: 480px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.65)), url('./img/worldcup26_cell_background.png');
      background-size: 90%;
      background-position: center;
      background-repeat: no-repeat;
      backdrop-filter: blur(4px);
      overflow: visible;
    }

    #side-badge {
      position: absolute;
      right: -20px;
      top: 50%;
      transform: translateY(-50%);
      height: 350px;
      width: auto;
      z-index: 6;
      pointer-events: none;
    }

    /* --- LOGO CENTRAL --- */
    #logo-container {
      position: relative;
      z-index: 5;
      width: 300px;
      height: 300px;
      top: -30px;
      text-align: center;
      filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.3));
    }

    #logo-container h1 {
      margin: 12px 0 0 0;
      font-size: 48px;
      letter-spacing: 6px;
      position: relative;
      top: -10px;
    }

    model-viewer {
      display: block;
      width: 100%;
      height: 100%;
      background: transparent;
      --environment-image: var(--cor-fundo);
    --progress-bar-color: var(--cor-fundo);
  }

  /* === Login modal (reaproveita CT Virtual) === */
  .card-login-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10060;
  }
  .card-login-modal.open {
    display: flex;
  }
  .card-login-box {
    background: #111;
    color: #fff;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 16px;
    width: min(92vw, 320px);
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .card-login-box input,
  .card-login-box select {
    background: #0b0b0b;
    color: #fff;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 10px;
    font-size: 14px;
  }
  .card-login-actions {
    display: flex;
    gap: 8px;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  .card-login-actions button {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
  }
  .card-login-actions .ghost {
    background: #222;
    color: #fff;
    border: 1px solid #444;
  }
  .card-login-actions button:not(.ghost) {
    background: #28a745;
    color: #fff;
  }
  .checkbox-line {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 14px;
  }
  .card-action-feedback {
    color: #ffd700;
    font-size: 13px;
    min-height: 18px;
  }
    /* --- HAMBURGER MENU (top-right) --- */
    #menu-button.hamburger {
      position: fixed;
      top: 10px;
      right: 10px;
      width: 44px;
      height: 40px;
      display: inline-flex;
      flex-direction: column;
      gap: 4px;
      align-items: center;
      justify-content: center;
      padding: 6px;
      background: transparent;
      border: none;
      z-index: 9999;
      cursor: pointer;
    }

    #menu-button.hamburger:focus {
      outline: 2px solid rgba(255,255,255,0.2);
      outline-offset: 4px;
    }

    #menu-button .line {
      display: block;
      width: 32px;
      height: 10px; /* increased thickness */
      margin: 2px 0;
      background: #ffffff;
      border-radius: 3px;
      box-sizing: border-box;
      border: 1px solid rgba(0,0,0,0.6); /* 1px stroke */
      transform-origin: center;
      transition: transform 220ms cubic-bezier(.2,.9,.3,1), opacity 180ms ease, background 180ms ease;
    }

    /* open -> cross animation */
    #menu-button.hamburger.open .line:nth-child(1) {
      transform: translateY(11px) rotate(45deg);
    }
    #menu-button.hamburger.open .line:nth-child(2) {
      opacity: 0;
      transform: scaleX(0.2);
    }
    #menu-button.hamburger.open .line:nth-child(3) {
      transform: translateY(-11px) rotate(-45deg);
    }

    /* --- MENU OVERLAY --- */
    #menu-overlay {
      position: fixed;
      top: 0;
      right: 0;
      height: 100vh;
      width: 50vw; /* covers 50% of viewport width from the right */
      max-width: 100%;
      background: rgba(255,255,255,0.55);
      transform: translateX(100%); /* start off-canvas to the right */
      transition: transform 360ms cubic-bezier(.2,.8,.2,1);
      z-index: 9998; /* below the menu button */
      pointer-events: none;
    }

    #menu-overlay.open {
      transform: translateX(0); /* slide in to show 50% overlay */
      pointer-events: auto;
    }

    /* optional content area inside overlay */
    #menu-overlay .content {
      height: 100%;
      overflow-y: auto;
      padding: 24px;
      box-sizing: border-box;
    }
    /* --- SUB-MENUS ROTATED AT TOP --- */
    #menu-overlay .overlay-top {
      position: absolute;
      top: 120px;
      left: 16px;
      display: flex;
      gap: 48px; /* increased horizontal spacing between items */
      align-items: flex-start;
      pointer-events: auto;
    }

    #menu-overlay .overlay-top .submenu {
      display: inline-block;
      transform: rotate(-90deg);
      transform-origin: left top;
      color: rgba(0,0,0,0.95);
      font-weight: 700;
      font-size: 18px;
      text-decoration: none;
      padding: 6px 8px;
      cursor: pointer;
      user-select: none;
      -webkit-tap-highlight-color: transparent;
      transition: color 160ms ease, opacity 160ms ease, transform 220ms ease;
    }

    #menu-overlay .overlay-top .submenu:focus,
    #menu-overlay .overlay-top .submenu:hover {
      color: #28a745; /* hover/focus turns green */
      opacity: 0.95;
      text-decoration: underline;
    }

    #menu-overlay .overlay-top .submenu[data-action="login"],
    #menu-overlay .overlay-top .submenu:nth-child(2) {
      margin-left: -90px;
    }
    /* FAQ remains at -60px */
    #menu-overlay .overlay-top .submenu[data-action="faq"],
    #menu-overlay .overlay-top .submenu:nth-child(3) {
      margin-left: -60px;
    }

    /* make sure rotated elements don't overflow the overlay edge on small screens */
    @media (max-width: 640px) {
      #menu-overlay .overlay-top {
        gap: 24px;
        left: 8px;
      }
      #menu-overlay .overlay-top .submenu {
        font-size: 16px;
        padding: 4px 6px;
        margin-left: 0; /* reset for small screens */
      }
    }