@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

        body {
            font-family: 'Poppins', sans-serif;
            background-color: #ffffff;
            color: #333;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        body.dark-mode {
            background-color: #000000;
            color: #e2e8f0;
        }

        body.dark-mode .glass-effect {
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
        }

        body.dark-mode .bg-white {
            background-color: #1a202c;
        }

        body.dark-mode .text-gray-600 {
            color: #cbd5e0;
        }

        body.dark-mode .text-gray-500 {
            color: #a0aec0;
        }

        body.dark-mode .text-gray-700 {
            color: #e2e8f0;
        }

        body.dark-mode footer {
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .glass-effect {
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 15px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .gradient-text {
            background: linear-gradient(to right, #007bff, #00bfff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .gradient-button-border {
            border: 2px solid transparent;
            background-image: linear-gradient(white, white), linear-gradient(to right, #007bff, #00bfff);
            background-origin: border-box;
            background-clip: content-box, border-box;
            border-radius: 9999px;
        }

        .no-select {
            -webkit-touch-callout: none;
            -webkit-user-select: none;
            -khtml-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }

        /* Animasi goyang */
        @keyframes shake {

            0%,
            100% {
                transform: translateX(0);
            }

            25% {
                transform: translateX(-2px);
            }

            50% {
                transform: translateX(2px);
            }

            75% {
                transform: translateX(-1px);
            }
        }

        .animate-shake {
            animation: shake 0.4s ease-in-out;
        }

        #theme-toggle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            border: none;
            color: #333;
        }

        body.dark-mode #theme-toggle {
            color: #e2e8f0;
        }

        #scroll-to-top-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(to right, #007bff, #00bfff);
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.3s ease;
            cursor: pointer;
            border: none;
        }

        #scroll-to-top-btn.show {
            opacity: 1;
            pointer-events: auto;
        }