* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Arial Black';
}
body, html {
  width: 100%;
  height: 100%;
  background: black;
  overflow: hidden;
  perspective: 1000px;
}

/* Grid Hintergrund */
/* Grid Hintergrund */
.grid-background {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, #240000 0%, #000000 100%);
    overflow: hidden;
    z-index: 0;
  }
  
  .grid-background::before {
    content: '';
    position: absolute;
    top: 30%;
    left: -40%;
    width: 300%;  /* Größerer Bereich für das Grid */
    height: 300%; /* Vergrößert die Grid-Fläche */
    background-image:
      linear-gradient(0deg, rgba(255, 0, 0, 0.4) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 0, 0, 0.4) 1px, transparent 1px);
    background-size: 300px 300px;
    transform: rotateX(40deg) rotateZ(45deg);
    animation: moveGrid 15s linear infinite;
    z-index: -1; /* Sicherstellen, dass es hinter allem anderen ist */
  }
  
  /* Grid-Bewegungs-Animation */
  @keyframes moveGrid {
    0% { 
      transform: rotateX(40deg) rotateZ(45deg) translate(0, 0); 
      opacity: 1; /* Anfang sichtbar */
    }
    100% { 
      transform: rotateX(40deg) rotateZ(45deg) translate(-70%); /* Bewegt sich nun über den gesamten Bildschirm */
      opacity: 1; /* Ende sichtbar */
    }
  }
  

/* MAC-Zentrum */
.center {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  perspective: 1000px;
}
.mac-text {
    position: relative;
    font-size: 20vw;
    font-weight: 9000;
    letter-spacing: 0.01em;
    font-family: 'Arial Black', sans-serif;
    color: rgba(255, 0, 35, 0.1);
    -webkit-text-stroke: 2px rgba(255, 0, 35, 0.8); /* Outline only */
    animation: floatAndRotate 30s ease-in-out infinite;
    z-index: 2;
  }
  
  /* Dezent flackerndes Füllen */
  @keyframes softFlicker {
    0%, 100% { opacity: 0.2; }
    10% { opacity: 0.4; }
    20% { opacity: 0.6; }
    30% { opacity: 0.9; }
    40% { opacity: 1; }
    50% { opacity: 0.9; }
    60% { opacity: 0.6; }
    70% { opacity: 0.7; }
    80% { opacity: 0.99; }
    90% { opacity: 1; }
  }
  .mac-logo {
    position: relative;
    font-size: 40vw;
    font-weight: 9000;
    letter-spacing: 0.01em;
    font-family: 'Arial Black', sans-serif;
    color: rgba(255, 0, 35, 0.1);
    -webkit-text-stroke: 2px rgba(255, 0, 35, 0.8); /* Outline only */
    animation: floatAndRotate 30s ease-in-out infinite;
    z-index: 2;
  }
  
  /* Dezent flackerndes Füllen */
  @keyframes softFlicker {
    0%, 100% { opacity: 0.2; }
    10% { opacity: 0.4; }
    20% { opacity: 0.6; }
    30% { opacity: 0.9; }
    40% { opacity: 1; }
    50% { opacity: 0.9; }
    60% { opacity: 0.6; }
    70% { opacity: 0.7; }
    80% { opacity: 0.99; }
    90% { opacity: 1; }
  }
  
  /* Lichtanimation außen um die Outline */
  .mac-text::before, .mac-logo::before {
    content: "MAC";
    position: absolute;
    top: 0;
    left: 0;
    color: transparent;
    -webkit-text-stroke: 2px transparent;
  
    background: linear-gradient(
      102deg,
      transparent 2%,
      rgba(255, 0, 35, 0.1) 20%,
      rgba(255, 0, 35, 0.4) 50%,
      rgba(255, 0, 35, 0.3) 80%,
      transparent 98%
    );
    background-size: 200%;
    background-repeat: no-repeat;
    background-position: -100%;
  
    -webkit-background-clip: text;
    background-clip: text;
  
    animation: lightSweep 3s infinite linear;
    pointer-events: none;
    z-index: 3;
  }
  
  @keyframes lightSweep {
    0% {
      background-position: -100%;
    }
    100% {
      background-position: 200%;
    }
  }
  
  @keyframes floatAndRotate {
    0%   { transform: translate(0px, 0px) rotate(0deg) rotateX(0deg) rotateY(0deg) scale(1); }
    10%  { transform: translate(10px, -15px) rotate(2deg) rotateX(1deg) rotateY(-1deg) scale(1.01); }
    20%  { transform: translate(-20px, -10px) rotate(-3deg) rotateX(0deg) rotateY(2deg) scale(0.99); }
    30%  { transform: translate(15px, 10px) rotate(1deg) rotateX(2deg) rotateY(1deg) scale(1.02); }
    40%  { transform: translate(-10px, 20px) rotate(-2deg) rotateX(-1deg) rotateY(-2deg) scale(1); }
    50%  { transform: translate(5px, -25px) rotate(4deg) rotateX(3deg) rotateY(0deg) scale(1.03); }
    60%  { transform: translate(-15px, 15px) rotate(-1deg) rotateX(0deg) rotateY(-3deg) scale(1.01); }
    70%  { transform: translate(20px, 5px) rotate(3deg) rotateX(-2deg) rotateY(2deg) scale(0.98); }
    80%  { transform: translate(-5px, -10px) rotate(-4deg) rotateX(1deg) rotateY(-1deg) scale(1.02); }
    90%  { transform: translate(10px, 10px) rotate(2deg) rotateX(0deg) rotateY(1deg) scale(1); }
    100% { transform: translate(0px, 0px) rotate(0deg) rotateX(0deg) rotateY(0deg) scale(1); }
  }
  
  @keyframes floatAndRotateSoft {
    0%   { transform: translate(0px, 0px) rotate(0deg) rotateX(0deg) rotateY(0deg) scale(1); opacity: 0.7;}
    20%  { transform: translate(2px, -3px) rotate(0.5deg) rotateX(0.3deg) rotateY(-0.3deg) scale(1.005); }
    40%  { transform: translate(-3px, 2px) rotate(-0.6deg) rotateX(0deg) rotateY(0.4deg) scale(0.997); opacity: 0.6;}
    60%  { transform: translate(2px, 2px) rotate(0.3deg) rotateX(0.2deg) rotateY(0.2deg) scale(1.003); }
    80%  { transform: translate(-1px, -2px) rotate(-0.4deg) rotateX(-0.2deg) rotateY(-0.3deg) scale(1.002); opacity: 0.8;}
    100% { transform: translate(0px, 0px) rotate(0deg) rotateX(0deg) rotateY(0deg) scale(1); }
  }

  .subtext {
    font-size: 3vw;
    margin-top: -5rem;
    color: rgba(100, 0, 25, 0.6);
    animation: floatAndRotateSoft 10s ease-in-out infinite;
    text-shadow:
      0 0 2px #ff0033,
      0 0 4px #ff0033,
      0 0 4px #ff0033;
  }

/* Würfel */
.cubes, .second-cube {
    position: absolute;
    width: 100px;
    height: 100px;
    transform-style: preserve-3d;
    z-index: 0;
  }
  .third-cube, .fourth-cube{
    position: absolute;
    width: 500px;
    height: 500px;
    transform-style: preserve-3d;
    z-index: 0;
  }

  .cubes {
    top: 20%;
    left: 70%;
    animation: spinCube 12s infinite linear;
  }

  .second-cube {
    top: 80%;
    left: 75%;
    animation: spinCubeAlt 18s infinite linear;
  }

  .third-cube {
    top: 10%;
    left: 90%;
    width: 500px;
    height: 500px;
    animation: spinCube 22s infinite linear;
  }

  .fourth-cube {
    top: 85%;
    left: 10%;
    width: 500px;
    height: 500px;
    animation: spinCubeAlt 20s infinite linear;
  }

  .fifth-cube {
    top: -20%;
    left: 0%;
    width: 500px;
    height: 500px;
    animation: spinCubeAlt 20s infinite linear;
  }

  .cube {
    width: 100%;
    height: 100%;
    position: absolute;
    transform-style: preserve-3d;
  }

  .face {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.3);
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.4);
    will-change: transform;
  }

  .front  { transform: translateZ(50px); }
  .back   { transform: rotateY(180deg) translateZ(50px); }
  .left   { transform: rotateY(-90deg) translateZ(50px); }
  .right  { transform: rotateY(90deg) translateZ(50px); }
  .top    { transform: rotateX(90deg) translateZ(50px); }
  .bottom { transform: rotateX(-90deg) translateZ(50px); }

  .facebig {
    position: absolute;
    width: 100%;
    height: 100%;
    will-change: transform;
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.3);
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.4);
  }

  .frontbig  { transform: translateZ(250px); }
  .backbig   { transform: rotateY(180deg) translateZ(250px); }
  .leftbig   { transform: rotateY(-90deg) translateZ(250px); }
  .rightbig  { transform: rotateY(90deg) translateZ(250px); }
  .topbig    { transform: rotateX(90deg) translateZ(250px); }
  .bottombig { transform: rotateX(-90deg) translateZ(250px); }

  @keyframes spinCube {
    0%   { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
  }

  @keyframes spinCubeAlt {
    0%   { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(-360deg) rotateY(360deg); }
  }


/* Linien */
.line {
    position: absolute;
    width: 200px;
    height: 2px;
    background: linear-gradient(
        to right,
        rgba(255, 0, 35, 0.6) 0%,
        rgba(255, 0, 35, 0.4) 30%,
        rgba(255, 0, 35, 0.4) 70%,
        rgba(255, 0, 35, 0.61) 100%
    );
    box-shadow:
        0 0 5px rgba(255, 0, 0, 0.8),
        0 0 10px rgba(255, 0, 0, 0.4),
        0 0 20px rgba(255, 0, 0, 0.0);
    transform: rotate(var(--angle)) scaleX(1.3) skewX(-10deg);
    transform-origin: left center;
    animation: flyLine 2s linear forwards;
    border-radius: 100px;
}

@keyframes flyLine {
  0% { transform: translate(0, 0) rotate(var(--angle)); }
  100% { transform: translate(var(--dx), var(--dy)) rotate(var(--angle)); }
}