body {
            font-family: 'Itim', cursive;
            background-color: #f0f9ff;
        }

        .mission-container {
            background: #fff3cf;
            padding: 20px;
            border-radius: 20px;
            border: 3px dashed #f1c40f;
            text-align: center;
            margin: 20px auto;
            max-width: 600px;
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
            position: relative;
        }

        .target-highlight {
            color: #e67e22;
            font-size: 1.8rem;
            display: block;
            margin: 10px 0;
        }

        /* ปุ่มสุ่มโจทย์ใหม่ */
        .btn-refresh {
            background: #ff9f43;
            color: white;
            border: none;
            padding: 8px 15px;
            border-radius: 15px;
            cursor: pointer;
            font-size: 0.9rem;
            margin-top: 10px;
            transition: 0.3s;
        }

        .btn-refresh:hover {
            background: #ee5253;
            transform: rotate(-5deg);
        }

        .btn-choice {
            padding: 15px 30px;
            font-size: 1.2rem;
            margin: 10px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: 0.3s;
            font-family: 'Itim', cursive;
        }

        .btn-solid {
            background: #95a5a6;
            color: white;
        }

        .btn-liquid {
            background: #3498db;
            color: white;
        }

        .btn-gas {
            background: #81ecec;
            color: #2d3436;
        }

        .btn-choice:hover {
            transform: scale(1.1);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }