:root {
            --board-bg: #1a1a1a;
            --text-color: #f0f0f0;
            --border-color: #444;
            --accent-color: #00ffdd;
            --p1-accent-color: #00ffdd;
            /* Teal for You */
            --p2-accent-color: #ff8c00;
            /* Dark Orange for Opponent */
            --game-bg: #0d0d0d;
            --ghost-alpha: 0.3;
            --garbage-color: #777;
            --main-board-scale: 1.15;
            --opponent-board-scale: 0.7;
        }

        .main-player-container {
            display: flex;
            justify-content: center;
            align-items: flex-start;
            flex: 2;
            gap: 0;
        }

        .opponents-panel {
            display: flex;
            flex-direction: row;
            align-items: flex-end;
            gap: 18px;
            margin-left: 32px;
            justify-content: center;
            width: 100%;
        }

        .main-player {
            transform: scale(1.0);
            z-index: 2;
            box-shadow: 0 0 24px 8px #00ffdd44;
        }

        .opponent-player {
            transform: scale(0.5);
            opacity: 0.85;
            z-index: 1;
            box-shadow: 0 0 12px 2px #ff8c0044;
        }

        .player-name-glow {
            font-size: 2.1em;
            font-weight: bold;
            letter-spacing: 1px;
            text-shadow:
                0 0 8px var(--accent-color),
                0 0 16px var(--accent-color),
                0 0 32px #fff,
                0 2px 8px #000,
                0 0 2px #fff;
            filter: brightness(1.2);
            margin-bottom: 8px;
            margin-top: 2px;
            line-height: 1.1;
        }

        .opponent-name-glow {
            font-size: 2.1em;
            font-weight: bold;
            letter-spacing: 1px;
            text-shadow:
                0 0 8px var(--p2-accent-color),
                0 0 16px var(--p2-accent-color),
                0 0 32px #fff,
                0 2px 8px #000,
                0 0 2px #fff;
            filter: brightness(1.2);
            margin-bottom: 8px;
            margin-top: 2px;
            line-height: 1.1;
        }

        body {
            font-family: 'Press Start 2P', cursive;
            background-color: var(--game-bg);
            color: var(--text-color);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            margin: 0;
            flex-direction: column;
            padding: 1em;
            box-sizing: border-box;
        }

        #background-layer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-image: url('https://i.pinimg.com/originals/0f/f5/77/0ff5777df030b7321bcc2df083cb554f.gif');
            background-size: cover;
            background-position: center;
            z-index: -1;
            transition: opacity 0.5s ease;
            opacity: 1;
        }

        #background-layer.hidden {
            opacity: 0;
            pointer-events: none;
        }

        h1 {
            color: var(--text-color);
            text-shadow: 2px 2px 0px var(--p1-accent-color), -2px -2px 0px var(--p2-accent-color);
            margin-bottom: 0.5em;
            text-align: center;
        }

        .menu-container {
            display: flex;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            justify-content: center;
            align-items: center;
            z-index: 200;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .menu-container.active {
            opacity: 1;
            visibility: visible;
        }

        #lobby-menu-container {
            display: flex;
        }

        .menu-box {
            background-color: rgba(26, 26, 26, 0.9);
            background-image: radial-gradient(circle at 50% 0%, rgba(0, 255, 221, 0.15) 0%, transparent 75%);
            padding: 35px 45px;
            border-radius: 12px;
            border: 2px solid var(--accent-color);
            text-align: center;
            box-shadow: 0 0 30px rgba(0, 255, 221, 0.15), 0 10px 40px rgba(0, 0, 0, 0.6);
            display: flex;
            flex-direction: column;
            gap: 20px;
            min-width: 320px;
            transform: translateY(30px);
            transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1), opacity 0.5s ease;
        }

        .menu-container.active .menu-box {
            transform: translateY(0);
        }

        .menu-box h2 {
            margin: 0 0 10px 0;
            color: var(--accent-color);
        }

        .menu-button {
            font-family: 'Press Start 2P', cursive;
            background-color: rgba(68, 68, 68, 0.5);
            color: var(--text-color);
            border: 2px solid #666;
            padding: 12px 24px;
            font-size: 0.85rem;
            border-radius: 6px;
            cursor: pointer;
            width: 100%;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
            overflow: hidden;
        }

        .menu-button.primary {
            background-color: var(--accent-color);
            color: var(--game-bg);
            border-color: var(--accent-color);
            font-weight: bold;
            box-shadow: 0 4px 0px #00a892;
        }

        .menu-button:hover {
            background-color: rgba(102, 102, 102, 0.8);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
        }

        .menu-button.primary:hover {
            background-color: #fff;
            color: var(--game-bg);
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0, 255, 221, 0.4), 0 4px 0px #ccc;
        }

        .menu-button:active {
            transform: translateY(2px);
            box-shadow: none !important;
        }

        #game-id-input {
            font-family: 'Press Start 2P', cursive;
            background-color: rgba(34, 34, 34, 0.8);
            border: 2px solid #444;
            color: var(--accent-color);
            padding: 15px;
            text-align: center;
            font-size: 1.1rem;
            border-radius: 8px;
            width: calc(100% - 34px);
            text-transform: uppercase;
            transition: all 0.3s ease;
            outline: none;
        }

        #game-id-input:focus {
            border-color: var(--accent-color);
            box-shadow: 0 0 15px rgba(0, 255, 221, 0.3);
            background-color: rgba(45, 45, 45, 0.9);
        }

        #game-id-input::placeholder {
            color: #666;
            font-size: 0.7rem;
        }

        #game-id-display {
            font-size: 2rem;
            color: var(--accent-color);
            letter-spacing: 6px;
            padding: 15px;
            background: rgba(0, 0, 0, 0.4);
            border: 2px solid var(--accent-color);
            border-radius: 8px;
            user-select: all;
            margin: 10px 0;
            text-shadow: 0 0 10px var(--accent-color);
            box-shadow: inset 0 0 15px rgba(0, 255, 221, 0.2);
            animation: pulse-glow 2s infinite ease-in-out;
        }

        @keyframes pulse-text {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }

        #waiting-title {
            animation: pulse-text 2s infinite ease-in-out;
            color: var(--accent-color);
        }

        @keyframes pulse-glow {
            0%, 100% { box-shadow: inset 0 0 15px rgba(0, 255, 221, 0.1), 0 0 5px rgba(0, 255, 221, 0.1); }
            50% { box-shadow: inset 0 0 25px rgba(0, 255, 221, 0.3), 0 0 15px rgba(0, 255, 221, 0.3); }
        }

        #countdown-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(13, 13, 13, 0.85);
            backdrop-filter: blur(8px);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 150;
        }

        #countdown-text {
            font-size: 10em;
            color: var(--text-color);
            text-shadow: 5px 5px 0px var(--p1-accent-color), -5px -5px 0px var(--p2-accent-color);
        }

        .main-container,
        .controls {
            display: none;
        }

        .main-container {
            justify-content: center;
            align-items: flex-start;
            gap: 40px;
            flex-wrap: wrap;
        }

        .player-container {
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .side-panel {
            display: flex;
            flex-direction: column;
            gap: 15px;
            width: 130px;
            min-width: 130px;
            flex-shrink: 0;
        }

        .info-box {
            background-color: var(--board-bg);
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 10px;
            text-align: center;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
            min-width: 120px;
            flex-shrink: 0;
        }

        #player-container .info-box h2 {
            color: var(--p1-accent-color);
        }

        #opponent-container .info-box h2 {
            color: var(--p2-accent-color);
        }

        .info-box h2 {
            margin: 0 0 10px 0;
            font-size: 0.9rem;
        }

        .info-box p {
            margin: 0;
            font-size: 1.1rem;
        }

        .game-board-container {
            position: relative;
            width: 300px;
            min-width: 300px;
            height: 600px;
            flex-shrink: 0;
            border: 4px solid var(--border-color);
            background-color: var(--board-bg);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
            border-radius: 8px;
            transition: border-color 0.3s ease;
        }

        .game-board-container.garbage-warning {
            border-color: #d32f2f;
        }

        .game-board {
            display: block;
            position: absolute;
            top: -60px;
            left: 0;
            width: 300px;
            height: 660px;
            pointer-events: none;
        }

        .piece-preview-canvas {
            background-color: var(--board-bg);
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        .next-pieces-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
        }

        .next-pieces-container .piece-preview-canvas {
            width: 80px;
            height: 50px;
        }

        .controls {
            margin-top: 20px;
            background-color: var(--board-bg);
            padding: 20px;
            border-radius: 8px;
            border: 2px solid var(--border-color);
            text-align: center;
            max-width: 800px;
            justify-content: space-around;
        }

        #player-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin: 15px 0;
            text-align: left;
        }

        .player-list-item {
            padding: 12px 20px;
            background: rgba(255, 255, 255, 0.05);
            border-left: 4px solid var(--accent-color);
            border-radius: 4px;
            font-size: 0.8rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .player-list-item.is-host::after {
            content: 'HOST';
            font-size: 0.6rem;
            background: var(--accent-color);
            color: var(--game-bg);
            padding: 2px 6px;
            border-radius: 2px;
            font-weight: bold;
        }

        .controls p {
            margin: 5px 0;
            line-height: 1.6;
            font-size: 0.8rem;
        }

        .controls span {
            display: inline-block;
            background: #333;
            padding: 2px 6px;
            border-radius: 4px;
            border: 1px solid #555;
        }

        .game-over-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            justify-content: center;
            align-items: center;
            z-index: 100;
        }

        .game-over-box {
            background-color: var(--board-bg);
            padding: 30px;
            border-radius: 8px;
            border: 2px solid var(--text-color);
            text-align: center;
            box-shadow: 0 0 20px 10px rgba(255, 255, 255, 0.2);
        }

        #restart-button {
            font-family: 'Press Start 2P', cursive;
            background-color: var(--accent-color);
            color: var(--game-bg);
            border: none;
            padding: 10px 20px;
            font-size: 1rem;
            border-radius: 5px;
            cursor: pointer;
            margin-top: 15px;
            transition: background-color 0.2s;
        }

        #restart-button:hover {
            background-color: #fff;
        }

        .shake {
            animation: shake 0.3s cubic-bezier(.36, .07, .19, .97) both;
        }

        @keyframes shake {

            10%,
            90% {
                transform: translate3d(-1px, 0, 0);
            }

            20%,
            80% {
                transform: translate3d(2px, 0, 0);
            }

            30%,
            50%,
            70% {
                transform: translate3d(-4px, 0, 0);
            }

            40%,
            60% {
                transform: translate3d(4px, 0, 0);
            }
        }

        /* Waiting animation for unresponsive players in waiting room */
        .waiting-anim {
            color: #ff8c00;
            font-size: 0.95em;
            margin-left: 10px;
            letter-spacing: 1px;
            font-family: 'Press Start 2P', cursive;
            vertical-align: middle;
        }
        .waiting-anim .dots {
            display: inline-block;
            width: 1.5em;
            text-align: left;
            overflow: hidden;
            vertical-align: middle;
            animation: dots-ellipsis 1.2s steps(3, end) infinite;
        }
        @keyframes dots-ellipsis {
            0% { width: 0.5em; }
            25% { width: 1em; }
            50% { width: 1.5em; }
            75% { width: 2em; }
            100% { width: 0.5em; }
        }

        /* Redesigned Eliminated Modal */
        .eliminated-box {
            background-color: rgba(20, 5, 5, 0.95);
            padding: 40px;
            border-radius: 16px;
            border: 2px solid #ff4444;
            text-align: center;
            box-shadow: 0 0 40px rgba(255, 68, 68, 0.3), inset 0 0 20px rgba(255, 68, 68, 0.1);
            backdrop-filter: blur(10px);
            animation: pulse-red 2s infinite alternate;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transform: translateY(30px);
            transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
        }

        .menu-container.active .eliminated-box {
            transform: translateY(0);
        }

        @keyframes pulse-red {
            from { box-shadow: 0 0 30px rgba(255, 68, 68, 0.2), inset 0 0 10px rgba(255, 68, 68, 0.1); }
            to { box-shadow: 0 0 60px rgba(255, 68, 68, 0.5), inset 0 0 30px rgba(255, 68, 68, 0.2); }
        }
        
        .spectate-btn {
            background: rgba(30, 30, 30, 0.8);
            border: 1px solid #ff4444;
            color: #fff;
            padding: 12px 20px;
            font-family: 'Press Start 2P', cursive;
            font-size: 0.8rem;
            cursor: pointer;
            border-radius: 8px;
            transition: all 0.2s ease;
            text-transform: uppercase;
        }

        .spectate-btn:hover {
            background: #ff4444;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 68, 68, 0.4);
        }