/* Aumenta o header e alinha logo à esquerda e menu à direita */
      #header2 {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        padding: 20px 40px 60px;  /* topo | lados | baixo */
        box-sizing: border-box;
        overflow: hidden;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        min-height: 220px;
        z-index: 1000;
        background-color: #05070e;
      }
      /* canvas do efeito por baixo dos elementos */
      #header2 > canvas {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: 0;
      }

      #header2 .logo {
        position: relative;
        z-index: 2;
        max-height: 100px;
        width: auto;
        margin: 0;
      }

      #header2 .menu {
        position: relative;
        z-index: 2;
        display: flex;
        gap: 18px;
        align-items: center;
      }

      /* Gradient text for menu links and red on hover */
      #header2 .logo { box-shadow: 0 18px 48px rgba(0,150,255,0.38); }

      #header2 .menu a {
        font-weight: 700;
        font-size: 18px; /* slightly larger */
        text-decoration: none;
        display: inline-block;
        padding: 6px 8px;
        /* blue / piscina gradient */
        background: linear-gradient(90deg, #0066ff 0%, #00b8d4 50%, #00d4ff 100%);
        background-size: 200% 200%;
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        color: transparent;
        transition: -webkit-text-fill-color 220ms ease, color 220ms ease, transform 200ms ease;
        will-change: transform;
      }

      #header2 .menu a:hover,
      #header2 .menu a:focus {
        -webkit-text-fill-color: #ff2b2b; /* keep existing hover red */
        color: #ff2b2b;
        transform: translateY(-2px);
        outline: none;
      }

      /* subtle animated gradient movement when not hovered */
      @keyframes header-menu-gradient {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
      }
      #header2 .menu a { animation: header-menu-gradient 6s ease-in-out infinite; }

      @media (max-width: 800px) {
        #header2 {
          padding: 12px 16px;
          min-height: 90px;
          overflow: visible; /* allow menu to extend below header */
        }
        #header2 .menu {
          display: none;
        }
        #header2 .menu.active {
          display: flex;
          position: absolute;
          left: 0;
          top: 100%;
          width: 100%;
          z-index: 50; /* ensure above main */
        }
        .menutoggle {
          display: block;
        }
      }