h2 {
            text-align: center;
            font-size: 23px;
            font-weight: 700;
            color: #ffffff;
            text-shadow: 0 0 30px #00ffff, 0 0 10px #66ffff;
            margin-bottom: 10px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 7px;
        }

        .form-grid input, .form-grid select {
            padding: 10px;
            border: none;
            border-radius: 10px;
            background-color: #fff;
            font-size: 14px;
            color: #000000;
            box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
            transition: all 0.3s ease;
        }

        .form-grid input::placeholder, .form-grid select {
            color: #afafaf;
        }

        select:valid {
            color: #000000;
        }

        .form-grid input:focus, .form-grid select:focus {
            background-color: #ffffff;
            box-shadow: 0 0 25px rgba(0, 255, 255, 0.5);
            outline: none;
        }

        button {
            display: block;
            margin: 1.5rem auto; /* atas-bawah 1.5rem, kiri-kanan auto */
            width: 80%;         /* atau tentukan lebar tetap misal 200px */
            padding: 8px 24px;
            background-color: #00ffff;
            color: #000;
            border: none;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 0 2px #00ffff, 0 0 10px #00ffff;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
          }
          

        button:hover {
            transform: scale(1.05);
            box-shadow: 0 0 2px #00a0a0, 0 0 20px #00a0a0;
        }
        

        @keyframes fall {
            0% {
                top: -50px;
                opacity: 1;
            }
            100% {
                top: 100vh;
                opacity: 0;
            }
        }

        .modal {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: rgba(0, 0, 0, 0.8);
            padding: 20px;
            border-radius: 10px;
            z-index: 1000;
            color: #fff;
            text-align: center;
            width: 300px;
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
        }

        .modal h2 {
            margin-bottom: 10px;
        }