body { margin: 0; overflow: hidden; background: #000; cursor: pointer; transition: filter 0.2s; }
        
        canvas { display: block; }
        
        #nav {
            position: absolute;
            top: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 20px;
            z-index: 1000;
            opacity: 0;
        }

        .nav-item { display: flex; flex-direction: column; align-items: center; gap: 10px; }

        .nav-step {
            padding: 15px 30px;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            border: 2px solid rgba(184, 115, 51, 0.5);
            border-radius: 30px;
            font-family: sans-serif;
            font-size: 14px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
            backdrop-filter: blur(5px);
        }

        .progress-bar {
            width: 80%;
            height: 4px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 2px;
            overflow: hidden;
        }
        .progress-fill {
            width: 0%;
            height: 100%;
            background: #b87333;
            box-shadow: 0 0 10px #ffca99;
            transition: width 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

        .nav-step:hover { background: rgba(184, 115, 51, 0.2); transform: scale(1.05); }
        .nav-step.active { 
            background: #b87333; 
            border-color: #ffca99; 
            box-shadow: 0 0 20px rgba(184, 115, 51, 0.6);
        }

        #ui {
            position: absolute;
            bottom: 20px;
            left: 20px;
            color: white;
            font-family: sans-serif;
            text-transform: uppercase;
            letter-spacing: 2px;
            opacity: 0;
            z-index: 10;
        }

        #legend {
            position: absolute;
            bottom: 60px;
            left: 20px;
            background: rgba(0, 0, 0, 0.6);
            border: 1px solid rgba(184, 115, 51, 0.4);
            padding: 15px;
            border-radius: 8px;
            color: white;
            font-family: sans-serif;
            font-size: 12px;
            display: none;
            flex-direction: column;
            gap: 10px;
            backdrop-filter: blur(5px);
        }
        .legend-item { display: flex; align-items: center; gap: 10px; }
        .dot { width: 12px; height: 12px; border-radius: 50%; }

        #description {
            position: absolute;
            top: 50%;
            left: 50px;
            transform: translateY(-50%);
            color: #fff;
            font-family: sans-serif;
            max-width: 320px;
            z-index: 5;
            opacity: 0;
        }
        #description h2 { color: #b87333; margin-bottom: 5px; text-transform: uppercase; font-size: 24px; }
        #description p { font-size: 14px; line-height: 1.5; color: #ccc; background: rgba(0,0,0,0.5); padding: 15px; border-radius: 5px; border-left: 3px solid #b87333; }

        #signature {
            position: absolute;
            bottom: 20px;
            right: 20px;
            color: rgba(255, 255, 255, 0.4);
            text-decoration: none;
            font-family: sans-serif;
            font-size: 12px;
            letter-spacing: 1px;
            z-index: 1000;
            transition: all 0.3s ease;
            padding: 5px 10px;
            border-right: 2px solid rgba(184, 115, 51, 0.3);
        }

        #signature:hover {
            color: #b87333;
            border-right: 2px solid #ffca99;
            background: rgba(184, 115, 51, 0.1);
            transform: translateX(-5px);
        }