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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px;
            overflow: auto;
        }

        .game-container {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            text-align: center;
            max-width: 500px;
            width: 100%;
        }

        h1 {
            color: #333;
            margin-bottom: 30px;
            font-size: 32px;
        }

        .input-section {
            margin-bottom: 30px;
        }

        .number-inputs {
            display: flex;
            gap: 15px;
            justify-content: center;
            align-items: center;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .input-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .input-group label {
            font-size: 14px;
            color: #666;
            font-weight: 600;
        }

        .number-inputs input {
            width: 120px;
            padding: 15px;
            border: 3px solid #667eea;
            border-radius: 8px;
            font-size: 20px;
            text-align: center;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .number-inputs input:focus {
            outline: none;
            border-color: #764ba2;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
        }

        .separator {
            font-size: 24px;
            color: #667eea;
            font-weight: bold;
            margin-top: 20px;
        }

        .result-container {
            margin: 30px 0;
            min-height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .result {
            font-size: 72px;
            font-weight: bold;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            opacity: 0;
            transform: scale(0.5);
            transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        }

        .result.show {
            opacity: 1;
            transform: scale(1);
        }

        .result.rolling {
            animation: roll 0.1s infinite;
        }

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

        .buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .btn {
            padding: 15px 35px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
        }

        .btn:active:not(:disabled) {
            transform: translateY(0);
        }

        .btn:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
        }

        .btn.secondary {
            background: #888;
        }

        .btn.secondary:hover {
            box-shadow: 0 6px 20px rgba(136, 136, 136, 0.4);
        }

        .error-message {
            color: #ff6b6b;
            font-size: 14px;
            margin-top: 10px;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .error-message.show {
            opacity: 1;
        }

        .history {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 2px solid #e0e0e0;
        }

        .history h3 {
            color: #666;
            font-size: 16px;
            margin-bottom: 15px;
        }

        .history-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .history-item {
            background: #f0f0f0;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 16px;
            color: #667eea;
            font-weight: 600;
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 26px;
                margin-bottom: 20px;
            }

            .game-container {
                padding: 20px;
            }

            .number-inputs {
                flex-direction: column;
                gap: 10px;
            }

            .separator {
                font-size: 20px;
                margin: 0;
            }

            .number-inputs input {
                width: 100%;
                max-width: 200px;
            }

            .result {
                font-size: 56px;
            }

            .btn {
                padding: 12px 25px;
                font-size: 16px;
            }
        }