:root {
            --bg-color: #000000;
            --stroke-color: #666666;
            --hover-stroke: #ffffff;
            --text-color: #dddddd;
            --font-main: 'Courier New', Courier, monospace;
        }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg-color);
            color: var(--text-color);
            font-family: var(--font-main);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            overflow: hidden;
        }

        .header {
            position: absolute;
            top: 2rem;
            text-align: center;
            letter-spacing: 0.2em;
            opacity: 0;
            animation: fadeIn 1.5s ease forwards 0.5s;
        }

        .header h1 {
            font-size: 1.5rem;
            font-weight: normal;
            margin: 0 0 0.5rem 0;
            color: var(--hover-stroke);
        }

        .header p {
            font-size: 0.8rem;
            color: var(--stroke-color);
            margin: 0;
        }

        .svg-container {
            width: 100%;
            max-width: 600px;
            aspect-ratio: 1 / 1;
            position: relative;
            z-index: 10;
            opacity: 0;
            transform: scale(0.95);
            animation: fadeInScale 1s ease forwards;
        }

        svg {
            width: 100%;
            height: 100%;
            filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.05));
        }

        .wedge-group {
            cursor: pointer;
            transition: all 0.3s ease;
            transform-origin: 0 0;
        }

        .wedge-path {
            fill: transparent;
            stroke: var(--stroke-color);
            stroke-width: 3;
            stroke-linejoin: round;
            transition: all 0.3s ease;
        }

        .wedge-rect {
            fill: transparent;
            stroke: var(--stroke-color);
            stroke-width: 3;
            stroke-linejoin: round;
            transition: all 0.3s ease;
        }

        .center-node {
            fill: var(--bg-color);
            stroke: var(--stroke-color);
            stroke-width: 3;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        /* Hover States */
        .wedge-group:hover {
            transform: scale(1.02);
        }

        .wedge-group:hover .wedge-path,
        .wedge-group:hover .wedge-rect {
            stroke: var(--hover-stroke);
            stroke-width: 4;
            filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.4));
        }

        .center-node.active, .center-node:hover {
            stroke: var(--hover-stroke);
            stroke-width: 4;
            filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.4));
        }

        .info-panel {
            position: absolute;
            bottom: 3rem;
            text-align: center;
            max-width: 400px;
            padding: 1.5rem;
            border: 1px solid var(--stroke-color);
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(5px);
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
            pointer-events: none;
        }

        .info-panel.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .info-panel h2 {
            margin: 0 0 0.5rem 0;
            font-size: 1.2rem;
            color: var(--hover-stroke);
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .info-panel p {
            margin: 0 0 1rem 0;
            font-size: 0.9rem;
            color: #aaa;
            line-height: 1.4;
        }

        .info-panel .status {
            display: inline-block;
            font-size: 0.75rem;
            padding: 0.25rem 0.75rem;
            border: 1px solid var(--stroke-color);
            color: var(--hover-stroke);
            text-transform: uppercase;
        }

        @keyframes fadeIn {
            to { opacity: 1; }
        }

        @keyframes fadeInScale {
            to { opacity: 1; transform: scale(1); }
        }