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

        body {
            font-family: 'Clear Sans', 'Helvetica Neue', Arial, sans-serif;
            background-color: #121213;
            color: #d7dadc;
            height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0 8px;
        }
        
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            max-width: 500px;
            padding: 20px 0;
            border-bottom: 1px solid #3a3a3c;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.05em;
        }

        .icon-button {
            background: none;
            border: none;
            color: #d7dadc;
            cursor: pointer;
            padding: 8px;
            font-size: 24px;
            transition: transform 0.2s;
        }

        .icon-button:focus {
            outline: none;
        }

        .icon-button:hover {
            transform: scale(1.1);
        }

        main {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 100%;
            max-width: 500px;
            margin: 20px 0;
        }

        #game-board {
            display: grid;
            grid-template-rows: repeat(6, 1fr);
            gap: 5px;
            padding: 10px 0;
            transition: box-shadow 0.2s ease-in-out;
        }

        #game-board:focus {
            outline: none;
        }

        .tile-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 5px;
        }

        .tile {
            width: 62px;
            height: 62px;
            border: 2px solid #3a3a3c;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 32px;
            font-weight: bold;
            text-transform: uppercase;
            transition: all 0.2s ease;
        }

        .tile.filled {
            animation: pop 0.1s ease;
            border-color: #565758;
        }

        .tile.reveal {
            animation: flip 0.5s ease;
        }

        .tile.correct {
            background-color: #538d4e;
            border-color: #538d4e;
        }

        .tile.present {
            background-color: #b59f3b;
            border-color: #b59f3b;
        }

        .tile.absent {
            background-color: #3a3a3c;
            border-color: #3a3a3c;
        }

        @keyframes pop {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }

        @keyframes flip {
            0% { transform: rotateX(0); }
            50% { transform: rotateX(90deg); }
            100% { transform: rotateX(0); }
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
            20%, 40%, 60%, 80% { transform: translateX(5px); }
        }

        .shake {
            animation: shake 0.5s ease;
        }

        #keyboard {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            margin-top: auto;
            padding: 20px 0;
            width: 100%;
            max-width: 500px;
        }

        .keyboard-row {
            display: flex;
            gap: 6px;
            justify-content: center;
        }

        .key {
            background-color: #818384;
            border: none;
            border-radius: 4px;
            color: #d7dadc;
            cursor: pointer;
            font-size: 14px;
            font-weight: bold;
            height: 58px;
            padding: 0;
            text-transform: uppercase;
            transition: all 0.2s;
            min-width: 30px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .key:hover {
            background-color: #818384;
            transform: scale(1.05);
        }

        .key:active {
            transform: scale(0.95);
        }

        .key.wide {
            min-width: 65px;
            font-size: 12px;
        }

        .key.correct {
            background-color: #538d4e;
        }

        .key.present {
            background-color: #b59f3b;
        }

        .key.absent {
            background-color: #3a3a3c;
        }

        #message-container {
            position: fixed;
            top: 20%;
            left: 50%;
            transform: translateX(-50%);
            background-color: #121213;
            border: 2px solid #d7dadc;
            border-radius: 8px;
            padding: 16px 24px;
            font-size: 16px;
            font-weight: bold;
            opacity: 0;
            transition: opacity 0.3s;
            z-index: 1000;
        }

        #message-container.show {
            opacity: 1;
        }

        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.8);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }

        .modal.show {
            opacity: 1;
            pointer-events: all;
        }

        .modal-content {
            background-color: #121213;
            border: 1px solid #3a3a3c;
            border-radius: 8px;
            padding: 24px;
            max-width: 400px;
            width: 90%;
            text-align: center;
        }

        .modal-content h2 {
            margin-bottom: 16px;
            font-size: 24px;
        }

        .modal-content p {
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .modal-content button {
            background-color: #538d4e;
            border: none;
            border-radius: 4px;
            color: white;
            cursor: pointer;
            font-size: 16px;
            font-weight: bold;
            padding: 12px 24px;
            margin-top: 16px;
            transition: transform 0.2s;
        }

        .modal-content button:hover {
            transform: scale(1.05);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin: 20px 0;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 32px;
            font-weight: bold;
            display: block;
        }

        .stat-label {
            font-size: 12px;
            text-transform: uppercase;
            color: #818384;
        }
        #tip-btn {
            background: linear-gradient(135deg, #f7931a, #ffae42);
            border: none;
            color: #fff;
            padding: 12px 20px;
            font-size: 16px;
            border-radius: 4px;
            cursor: pointer;
            display: none;
            transition: transform 0.2s, box-shadow 0.2s;
            animation: tipPulse 2s infinite ease-in-out;
            font-weight: bold;
            box-shadow: 0 0 12px rgba(255, 170, 50, 0.6);
        }

        #tip-btn:hover {
            transform: scale(1.08);
            box-shadow: 0 0 18px rgba(255, 170, 50, 0.9);
        }

        @keyframes tipPulse {
            0% { transform: scale(1); box-shadow: 0 0 10px rgba(255, 170, 50, 0.6); }
            50% { transform: scale(1.1); box-shadow: 0 0 20px rgba(255, 170, 50, 1); }
            100% { transform: scale(1); box-shadow: 0 0 10px rgba(255, 170, 50, 0.6); }
        }

        @media (max-width: 500px) {
            header {
                padding: 8px;
            }
            main {
                margin: 10px, 0;
            }
            .tile {
                width: 42px;
                height: 42px;
                font-size: 24px;
            }
            #game-board {
                padding-top: 0;
            }
            .key {
                height: 44px;
                min-width: 28px;
                font-size: 12px;
            }
            #keyboard {
                gap: 4px;
                padding-top: 0;
            }
            .keyboard-row {
                gap: 4px;
            }
            .key.wide {
                min-width: 50px;
                font-size: 10px;
            }
        }