illusory stairs

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<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Escadas Ilusórias</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            background: #1e1e24;
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            width: 100vw;
            font-family: monospace;
            position: relative;
            overflow: hidden;
        }
        
        .escada-container {
            position: relative;
            width: 300px;
            height: 400px;
            perspective: 800px;
        }
        
        /* Container para ficar atrás da escada e mostrar a parede */
        .parede {
            position: absolute;
            width: 210px;
            height: 300px;
            top: 44%;
            left: 44.5%;
            transform: translate(-50%, -50%) rotate(45deg);
            background: #e5d3b3;
            z-index: 1;
            clip-path: polygon(
                0% 35%,
                50% 0%, 
                100% 35%, 
                100% 64%, 
                50% 100%, 
                0% 64% 
            );
        }
        
        /* Estilo geral dos degraus */
        .degrau {
            position: absolute;
            background: linear-gradient(145deg, #4a3620 0%, #2e220f 100%);
            box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
            border-radius: 2px;
            transform-origin: center;
            z-index: 2;
        }
        
        /* Degraus horizontais (degraus ímpares) */
        .degrau-horizontal {
            width: 120px;
            height: 60px;
            clip-path: polygon(50% 0, 75% 0, 25% 100%, 0 100%);
        }
        
        /* Degraus verticais (degraus pares) */
        .degrau-vertical {
            width: 60px;
            height: 120px;
            clip-path: polygon(100% 25%, 100% 50%, 0 100%, 0 75%);
        }
        
        /* Posicionamento específico para cada degrau */
        #degrau1 {
            top: 70px;
            left: 30px;
            background: linear-gradient(145deg, #4a3620 0%, #2e220f 100%);
        }
        
        #degrau2 {
            top: 40px;
            left: 60px;
            background: linear-gradient(145deg, #4a3620 0%, #2e220f 100%);
        }
        
        #degrau3 {
            top: 100px;
            left: 60px;
            background: linear-gradient(145deg, #503d24 0%, #352713 100%);
        }
        
        #degrau4 {
            top: 70px;
            left: 90px;
            background: linear-gradient(145deg, #503d24 0%, #352713 100%);
        }
        
        #degrau5 {
            top: 130px;
            left: 90px;
            background: linear-gradient(145deg, #574428 0%, #3a2d18 100%);
        }
        
        #degrau6 {
            top: 100px;
            left: 120px;
            background: linear-gradient(145deg, #574428 0%, #3a2d18 100%);
        }
        
        #degrau7 {
            top: 160px;
            left: 120px;
            background: linear-gradient(145deg, #5e4b2b 0%, #40321c 100%);
        }
        
        #degrau8 {
            top: 130px;
            left: 150px;
            background: linear-gradient(145deg, #5e4b2b 0%, #40321c 100%);
        }
        
        #degrau9 {
            top: 190px;
            left: 150px;
            background: linear-gradient(145deg, #65512f 0%, #463520 100%);
        }
        
        #degrau10 {
            top: 160px;
            left: 180px;
            background: linear-gradient(145deg, #65512f 0%, #463520 100%);
        }
        
        /* Detalhe para deixar o degrau com textura de madeira */
        .degrau::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect fill="none" width="100" height="100"/><path fill="rgba(255,255,255,0.07)" d="M30 10C35 10 35 20 40 20S45 10 50 10s5 10 10 10s5-10 10-10s5 10 10 10s5-10 10-10v80H10V10C15 10 15 20 20 20S25 10 30 10z"/></svg>');
            opacity: 0.5;
            pointer-events: none;
        }
        
        /* Efeito de rotação para melhorar a ilusão */
        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
    </style>
</head>
<body>
    
    <div class="escada-container">
        <div class="parede" onclick="piscar()"></div>
        
        
        <div id="degrau1" class="degrau degrau-horizontal"></div>
        <div id="degrau2" class="degrau degrau-vertical"></div>
        <div id="degrau3" class="degrau degrau-horizontal"></div>
        <div id="degrau4" class="degrau degrau-vertical"></div>
        <div id="degrau5" class="degrau degrau-horizontal"></div>
        <div id="degrau6" class="degrau degrau-vertical"></div>
        <div id="degrau7" class="degrau degrau-horizontal"></div>
        <div id="degrau8" class="degrau degrau-vertical"></div>
        <div id="degrau9" class="degrau degrau-horizontal"></div>
        <div id="degrau10" class="degrau degrau-vertical"></div>
    </div>

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