body {
            margin: 0;
            padding: 0;
            background: #000;
            overflow: hidden;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            width: 100%;
        }
        #vanta-bg {
            position: absolute;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        .content {
            position: absolute;
            z-index: 2;
            text-align: center;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: all 1s ease-in-out;
            width: 80%;
            max-width: 600px;
        }
        .content.moved {
            top: 5%;
            transform: translate(-50%, 0);
        }
        .center-image {
            width: 100%;
            height: auto;
            max-width: 70%;
            max-height: 80vh;
            display: block;
            margin: 0 auto;
            transition: all 1s ease-in-out;
        }
        .content.moved .center-image {
            max-height: 30vh;
        }
        .loader {
            position: absolute;
            bottom: 5%;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            width: 5vw;
            height: 5vw;
            min-width: 30px;
            min-height: 30px;
            border-radius: 50%;
            background: transparent;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
            opacity: 1;
            transition: opacity 0.5s ease;
        }
        .loader.hidden {
            opacity: 0;
            pointer-events: none;
        }
        .loader::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: 0.5vw solid transparent;
            border-top: 0.5vw solid #00ccff;
            border-right: 0.5vw solid #00ccff;
            border-radius: 50%;
            animation: spin 1.5s linear infinite;
        }
        .loader::after {
            content: '';
            position: absolute;
            top: 1vw;
            left: 1vw;
            width: 3vw;
            height: 3vw;
            min-width: 15px;
            min-height: 15px;
            border: 0.3vw solid transparent;
            border-bottom: 0.3vw solid #ffffff;
            border-radius: 50%;
            animation: spin 1s linear infinite reverse;
        }
        .button {
            position: absolute;
            z-index: 2;
            padding: 1.5rem 2.5rem;
            background: linear-gradient(to right, #ff6200, #ff8533);
            color: #ffffff;
            font-family: 'Arial', sans-serif;
            font-size: 1.2rem;
            font-weight: bold;
            text-transform: uppercase;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(255, 98, 0, 0.8), 0 0 30px rgba(255, 98, 0, 0.5);
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(100px);
            width: 25%;
            max-width: 300px;
            min-width: 200px;
            text-align: center;
        }
        .button.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .button:hover {
            background: linear-gradient(to right, #e65c00, #ff751a);
            box-shadow: 0 0 20px rgba(255, 98, 0, 1), 0 0 40px rgba(255, 98, 0, 0.7);
            transform: translateY(-2px);
        }
        #launch-button {
            bottom: 15%;
            left: 50%;
            transform: translateX(-50%) translateY(100px);
        }
        #launch-button.visible {
            transform: translateX(-50%) translateY(0);
        }
        #return-button {
            bottom: 20px;
            left: 20px;
            background: linear-gradient(to right, #e74c3c, #c0392b);
            padding: 1rem 1.5rem;
            font-size: 1rem;
            width: auto;
            min-width: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transform: translateY(100px);
            box-shadow: 0 0 15px rgba(231, 76, 60, 0.8), 0 0 30px rgba(231, 76, 60, 0.5);
        }
        #return-button.visible {
            transform: translateY(0);
        }
        #return-button:hover {
            background: linear-gradient(to right, #c0392b, #e74c3c);
            box-shadow: 0 0 20px rgba(231, 76, 60, 1), 0 0 40px rgba(231, 76, 60, 0.7);
        }
        .circle {
            position: absolute;
            z-index: 2;
            width: 40vw;
            height: 40vw;
            max-width: 350px;
            max-height: 350px;
            min-width: 200px;
            min-height: 200px;
            background: #000;
            border: 0.5vw solid #ff6200;
            border-radius: 50%;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -20%);
            opacity: 0;
            transition: opacity 0.5s ease;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #fff;
            font-family: 'Arial', sans-serif;
            font-size: 2.5rem;
            font-weight: bold;
            text-align: center;
        }
        .circle.default-text {
            font-size: 1rem;
            font-weight: normal;
            padding: 1rem;
        }
        .circle.visible {
            opacity: 1;
        }
        .error-message {
            position: absolute;
            z-index: 3;
            top: 5%;
            left: 50%;
            transform: translateX(-50%);
            background: #000;
            border: 0.2vw solid #ff6200;
            color: #fff;
            font-family: 'Arial', sans-serif;
            font-size: 1.2rem;
            padding: 1rem 2rem;
            border-radius: 5px;
            display: flex;
            align-items: center;
            opacity: 0;
            transition: opacity 0.5s ease;
            width: 80%;
            max-width: 400px;
        }
        .error-message.visible {
            opacity: 1;
        }
        .error-message .icon {
            margin-right: 1rem;
            font-size: 1.5rem;
        }
        .error-message .time-remaining {
            font-weight: bold;
            font-style: italic;
        }
        .progress-container {
            position: absolute;
            z-index: 2;
            top: 30%;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            max-width: 300px;
            text-align: center;
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        .progress-container.visible {
            opacity: 1;
        }
        .progress-bar {
            width: 100%;
            height: 10px;
            background: #333;
            border-radius: 5px;
            overflow: hidden;
        }
        .progress-fill {
            height: 100%;
            background: #ff6200;
            width: 0%;
            transition: width 0.1s linear;
        }
        .progress-text {
            color: #fff;
            font-family: 'Arial', sans-serif;
            font-size: 1rem;
            margin-top: 5px;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        @media (max-width: 768px) {
            .content {
                width: 90%;
                max-width: 500px;
            }
            .center-image {
                max-height: 70vh;
                max-width: 70%;
            }
            .content.moved .center-image {
                max-height: 30vh;
            }
            .loader {
                width: 6vw;
                height: 6vw;
                min-width: 25px;
                min-height: 25px;
            }
            .loader::before {
                border-width: 0.4vw;
            }
            .loader::after {
                top: 0.8vw;
                left: 0.8vw;
                width: 4vw;
                height: 4vw;
                min-width: 12px;
                min-height: 12px;
                border-width: 0.25vw;
            }
            .button {
                padding: 1rem 2rem;
                font-size: 1rem;
                width: 40%;
                max-width: 250px;
                min-width: 150px;
            }
            #return-button {
                padding: 0.8rem 1.2rem;
                font-size: 0.9rem;
                min-width: 100px;
            }
            .circle {
                width: 40vw;
                height: 40vw;
                max-width: 280px;
                max-height: 280px;
                min-width: 160px;
                min-height: 160px;
                font-size: 2rem;
            }
            .circle.default-text {
                font-size: 0.9rem;
                padding: 0.8rem;
            }
            .error-message {
                font-size: 1rem;
                padding: 0.8rem 1.5rem;
                max-width: 350px;
            }
            .error-message .icon {
                font-size: 1.2rem;
                margin-right: 0.8rem;
            }
            .progress-container {
                top: 28%;
                width: 70%;
                max-width: 250px;
            }
            .progress-text {
                font-size: 0.9rem;
            }
        }
        @media (max-width: 480px) {
            .content {
                width: 95%;
                max-width: 400px;
            }
            .center-image {
                max-height: 60vh;
                max-width: 70%;
            }
            .content.moved .center-image {
                max-height: 30vh;
            }
            .loader {
                width: 8vw;
                height: 8vw;
                min-width: 20px;
                min-height: 20px;
            }
            .loader::before {
                border-width: 0.3vw;
            }
            .loader::after {
                top: 0.6vw;
                left: 0.6vw;
                width: 5vw;
                height: 5vw;
                min-width: 10px;
                min-height: 10px;
                border-width: 0.2vw;
            }
            .button {
                padding: 0.8rem 1.5rem;
                font-size: 0.9rem;
                width: 50%;
                max-width: 200px;
                min-width: 120px;
            }
            #return-button {
                padding: 0.6rem 1rem;
                font-size: 0.8rem;
                min-width: 90px;
                bottom: 10px;
                left: 10px;
            }
            .circle {
                width: 45vw;
                height: 45vw;
                max-width: 250px;
                max-height: 250px;
                min-width: 140px;
                min-height: 140px;
                font-size: 1.8rem;
            }
            .circle.default-text {
                font-size: 0.8rem;
                padding: 0.6rem;
            }
            .error-message {
                font-size: 0.9rem;
                padding: 0.6rem 1.2rem;
                max-width: 300px;
            }
            .error-message .icon {
                font-size: 1rem;
                margin-right: 0.6rem;
            }
            .progress-container {
                top: 38%;
                width: 80%;
                max-width: 200px;
            }
            .progress-text {
                font-size: 0.8rem;
            }
        }