body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background: url('/static/wallpaper.jpg') no-repeat center center fixed;
    background-size: cover;
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}
.menu {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: #000000;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    color: white;
    text-align: center;
    width: 70px;
    height: 20px;
}
.menu-options {
    display: none;
    position: absolute;
    top: 40px;
    left: 0px;
    background-color: rgba(0, 0, 0, 0.9);
    padding: 5px;
    border-radius: 5px;
    width: 80px;
    max-height: 300px;
    overflow-y: auto;
}
.menu:hover .menu-options {
    display: block;
}
.menu-options button {
    display: block;
    background: none;
    border: none;
    color: white;
    padding: 5px;
    cursor: pointer;
    width: 100%;
    text-align: left;
}
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
}

.modal-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 10px;
    width: 300px;
    text-align: center;
}

.modal-content input {
    width: 93%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    border: none;
    background-color: #1e1e1e;
    color: white;
}

.modal-content button {
    background-color: #eb142a;
    color: white;
    border: none;
    padding: 15px;
    width: 250px;
    height: 45px;
    border-radius: 5px;
    cursor: pointer;
}

.modal-content button:hover {
    background-color: #c01022;
}

.close-btn {
    background-color: #eb142a;
    margin-top: 10px;
}

.close-btn:hover {
    background-color: #c01022;
}

.product-container {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.product {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 5px;
    width: 30%;
    text-align: center;
}

.product h3 {
    margin-bottom: 10px;
}

.product p {
    margin-bottom: 15px;
}

.product button {
    background-color: #eb142a;
    color: white;
    border: none;
    padding: 15px;
    width: 250px;
    height: 50px;
    border-radius: 5px;
    cursor: pointer;
}

.product button:hover {
    background-color: #c01022;
}

main {
    background-color: rgba(0, 0, 0, 0.8);
    padding: 20px;
    max-width: 600px;
    margin: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
}
header h1 {
    font-size: 2em;
    color: #eb142a;
}
label, select, input[type="file"], button {
    display: block;
    width: 100%;
    margin: 10px 0;
    font-size: 1rem;
}
select, input[type="file"] {
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #1e1e1e;
    color: #ffffff;
}
button, #download-link, #reset-button {
    padding: 12px;
    border: none;
    border-radius: 5px;
    background-color: #eb142a;
    color: #ffffff;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    width: 100%;
    margin-top: 10px;
}
button:hover, #download-link:hover, #reset-button:hover {
    background-color: #c01022;
}
#download-link {
    background-color: #28a745;
}
#download-link:hover {
    background-color: #218838;
}
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
#loading-overlay .spinner {
    width: 50px;
    height: 50px;
    border: 6px solid rgba(255, 255, 255, 0.3);
    border-top: 6px solid #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@media (max-width: 768px) {
    main {
        margin: 20px;
        padding: 15px;
    }
    header h1 {
        font-size: 1.5em;
    }
}