.nav-tabs {
    border-bottom: none;
    display: flex;
    justify-content: space-around;
}

.nav-item {
    flex-grow: 1;
    text-align: center;
    margin: 0 5px;
}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    border: none;
    background-color: #fff;
    border-radius: 8px;
    transition: all 0.3s ease-in-out;
    color: #6c757d;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

.nav-link i {
    font-size: 24px;
    margin-right: 5px;
}

.nav-link.active {
    background-color: #007bff;
    color: #fff;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.nav-link.active i {
    color: #007bff
}

.nav-link.active:before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 4px;
    background-color: #007bff;
    border-radius: 2px;
}

.tab-content {
    margin-top: 20px;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.tab-content h3 {
    color: #007bff;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.lock-icon {
    font-size: 20px;
    color: #f44336;
}

.unlock-icon {
    font-size: 20px;
    color: #4caf50;
}

.locked {
    pointer-events: none;
    opacity: 0.6;
}

@media (max-width: 768px) {
    .nav-link span {
        display: none;
    }

    .nav-link i {
        margin-right: 0;
    }
}

.locked {
    pointer-events: none;
    opacity: 0.5;
}

.locked {
    pointer-events: none;
    opacity: 0.5;
}

.tab-content .tab-pane {
    display: none;
}

.tab-content .active-content {
    display: block;
}