/* Popup animation styles */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background-color: #092834;
    padding: 30px;
    border-radius: 10px;
    position: relative;
    max-width: 500px;
    width: 90%;
    color: white;
    text-align: center;
    border: 2px solid transparent;
    animation: borderAnimation 3s infinite linear;
}

@keyframes borderAnimation {
    0% {
        border-color: rgba(46, 98, 255, 0.4);
        box-shadow: 0 0 10px rgba(46, 98, 255, 0.4);
    }
    25% {
        border-color: rgba(255, 46, 98, 0.4);
        box-shadow: 0 0 10px rgba(255, 46, 98, 0.4);
    }
    50% {
        border-color: rgba(98, 255, 46, 0.4);
        box-shadow: 0 0 10px rgba(98, 255, 46, 0.4);
    }
    75% {
        border-color: rgba(255, 98, 46, 0.4);
        box-shadow: 0 0 10px rgba(255, 98, 46, 0.4);
    }
    100% {
        border-color: rgba(46, 98, 255, 0.4);
        box-shadow: 0 0 10px rgba(46, 98, 255, 0.4);
    }
}

.popup-button {
    background-color: #376476;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    margin-top: 20px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.popup-button:hover {
    background-color: #335F71;
}

.close-popup {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 28px;
    font-weight: bold;
    color: #000;
    cursor: pointer;
    transition: 0.3s;
}

.close-popup:hover {
    color: #555;
}