/* Gradient Background */
.section-fullscreen {
    font-size: 16px;
    line-height: 1.5;
    background: linear-gradient(to bottom, #6a11cb, #2575fc); /* Màu gradient */
    color: #fff;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* Dark Overlay for better text visibility */
.overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 0;
}

/* Feature Box Styling */
.feature-item {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 12px;
    height: 100%; /* Ensure the height is consistent */
}

.feature-box {
    background: #0062cc;
    color: white;
    border-radius: 10px;
    padding: 12px;
    text-align: center;
    transition: transform 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 130px;
    max-height: 250px; /* Set a fixed height to prevent distortion */
    width: 300px;
    overflow: hidden;
}

.feature-box img {
    width: 40px;
    height: 40px;
    transition: transform 0.3s ease;
}

/* Hover Effects */
.feature-box:hover {
    transform: translateY(-10px);
    background-color: #ffce00;
}

.feature-box:hover img {
    transform: scale(1.1);
}

/* Active state when clicked */
.feature-box.active {
    background-color: #ffce00;
    color: #0062cc;
}

.feature-box.active h5 {
    font-size: 18px;
}

/* CTA Section */
.cta-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cta-container .btn {
    padding: 15px 30px;
    background-color: #ffce00;
    color: #0062cc;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.cta-container .btn:hover {
    background-color: #0062cc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .feature-box {
        padding: 20px;
    }

    .feature-box img {
        width: 40px;
        height: 40px;
    }

    .feature-box h5 {
        font-size: 14px;
    }

    .cta-container .btn {
        font-size: 16px;
        padding: 12px 25px;
    }
}