CSS Animated Background & Loading Effects

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```html
<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

body {
            background:url("https://vinixodin.com/thumb.jpg") no-repeat center center;
            background-color: #000;
            background-size: cover;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100vh;
            overflow: hidden;
        }

.codigo {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            background: #272822;
            color: #F8F8F2;
            font-family: 'Consolas', 'Monaco', monospace;
            font-size: 18px;
            padding: 20px;
            border-radius: 8px;
            white-space: pre-line;
            text-align: left;
            line-height: 1.6;
            max-height: 25%;
            max-width: 75%;
            width: 75%;
            height: 25%;
            top:15%;
            overflow-y: hidden;
            box-shadow: -8px 10px 18px rgba(0, 0, 0, 0.55);
        }

.selector       { color: #F92672; }
        .property       { color: #66D9EF; }
        .value-number   { color: #AE81FF; }
        .value-string   { color: #E6DB74; }
        .value-color    { color: #A6E22E; }
        .function       { color: #A6E22E; }

.animation-container {
            position: absolute;
            top: 75%;
            left: 50%;
            transform: translate(-50%, -50%);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 50%;
            overflow: hidden;
            background: transparent;
        }

@keyframes loading-animation {
            0% {
                transform: scale(1);
                transform-origin: center;
                background-color: #fff;
            }
            10% {
                transform: scale(1.1);
                transform-origin: center;
                background-color: #ccc;
            }
            30% {
                transform: scale(0.9);
                transform-origin: center;
                background-color: #666;
            }
            50% {
                transform: scale(1);
                transform-origin: center;
                background-color: #fff;
            }
            60% {
                transform: scale(1.2);
                transform-origin: center;
                background-color: #ccc;
            }
            80% {
                transform: scale(0.8);
                transform-origin: center;
                background-color: #666;
            }
            100% {
                transform: scale(0.8);
                transform-origin: center;
                background-color: #333;
            }
        }

.loading-element {
            position: relative;
            width: 200px;
            height: 200px;
            border-radius: 40%;
            animation: loading-animation 10s linear infinite;
            background-color: #fff;
        }

@keyframes crumbling {
            0% {
                transform: scale(1);
                transform-origin: center;
                clip-path: inset(0);
            }
            20% {
                clip-path: circle(30% at 50% 50%);
            }
            40% {
                clip-path: polygon(20% 40%, 80% 40%, 50% 70%);
            }
            60% {
                clip-path: polygon(60% 80%, 40% 80%, 50% 60%);
            }
            80% {
                clip-path: none;
                transform: scale(0.5);
                transform-origin: center;
            }
            100% {
                opacity: 0;
            }
        }

.muro {
            position: relative;
            width: 500px;
            height: 400px;
            border-radius: 5%;
            transform: rotate(10deg);
            animation: crumbling 5s forwards;
            background-color: #fff;
            /* Representam a liberdade e a abertura da mente */
        }

.muro:before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 50%;
            height: 100%;
            background-color: #666;
            clip-path: polygon(0 0, 100% 0, 50% 50%, 100% 100%, 0 100%);
            animation: fade-in 5s forwards;
        }

@keyframes fade-in {
            0% {
                opacity: 0;
            }
            100% {
                opacity: 1;
            }
        }

. luz {
            position: relative;
            width: 400px;
            height: 200px;
            border-radius: 5%;
            animation: ascen 5s forwards;
            background-color: #fff;
            color: #333;
            /* Representa a luz do conhecimento e da compreensão */
        }

.luz::before {
            content: "";
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            height: 200%;
            background-color: #333;
            clip-path: polygon(0 0, 100% 100%, 50% 0);
            animation: ascen 5s forwards;
        }

@keyframes ascen {
            0% {
                transform: translateY(100%);
            }
            100% {
                transform: translateY(0);
            }
        }

@keyframes fade-out {
            0% {
                opacity: 1;
            }
            100% {
                opacity: 0;
            }
        }

.eco {
            position: relative;
            width: 400px;
            height: 200px;
            border-radius: 5%;
            animation: fade-out 5s forwards;
            background-color: #fff;
            /* Representa a saída do labirinto */
        }

.eco::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: #333;
            clip-path: inset(0);
            animation: fade-in 5s forwards;
        }
    </style>
</head>
<body>

<div class="animation-container">
        <div class="muro">
            <div class="luz"></div>
            <div class="eco"></div>
        </div>
        <div class="muro muro2"></div>
        <div class="muro muro3"></div>
        <div class="muro muro4"></div>
    </div>
</body>
</html>
```

CSS

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

body {
  background:url("./thumb.jpg") no-repeat center center;
  background-color: black;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  aspect-ratio: 9/16;
}

.selector       { color: #F92672; }
.property       { color: #66D9EF; }
.value-number   { color: #AE81FF; }
.value-string   { color: #E6DB74; }
.value-color    { color: #A6E22E; }
.function       { color: #A6E22E; }

.animation-container {
  position: absolute;
  top: 75%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50%;
  overflow: hidden;
  background: transparent;
  aspect-ratio: 9/16;
}

/* 
  Layers e motivação emocional
*/
.loading-element {
  background-color: #333333;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  animation: loading-animation 1s linear infinite;
  position: relative;
}

@keyframes loading-animation {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}

.layer1 {
  width: 100%;
  height: 100%;
  background-color: #4D4D4D;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: opacity 1s;
}

.layer1::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #3F3F3F;
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

/* 
  Micro-detalhes para o replay value
*/
.layer2 {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #3F3F3F;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: detalhe 2s linear infinite;
}

@keyframes detalhe {
  50% {
    transform: scale(1);
    background-color: #666666;
  }
  100% {
    transform: scale(0);
    background-color: #3F3F3F;
  }
}

/* 
  Interações entre camadas e elementos
*/
.layer3 {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: #2F2F2F;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: interacao 2s linear infinite;
}

@keyframes interacao {
  50% {
    transform: scale(1);
    background-color: #777777;
  }
  100% {
    transform: scale(0);
    background-color: #2F2F2F;
  }
}

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