.hero-section {
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.9), rgba(0, 0, 0, 0.9)), url('https://images.pexels.com/photos/1181244/pexels-photo-1181244.jpeg') center center / cover;
    color: var(--bg-color);
    padding: 120px 0;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
}

.hero-section .btn {
    background: transparent;
    border: solid 1px var(--bg-color);
}

.hero-section .btn:hover {
    border: solid 1px var(--bg-color);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(30, 144, 255, 0.3), transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h2 {
    font-size: var(--title);
    font-weight: var(--f-weight-2);
}

.responsive-demo {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--b-shadow);
    margin: 40px 0;
    transition: all 0.3s ease;
    border: solid 30px var(--secondary-color);
}

.responsive-demo:hover {
    transform: scale(1.02);
    box-shadow: var(--b-shadow);
}

.responsive-demo img {
    width: 100%;
    display: block;
}

.feature-box {
    padding: 40px 25px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--b-shadow);
    transition: all 0.4s ease;
    height: 100%;
    border-bottom: 7px solid var(--primary-color);
}

.feature-box i {
    color: var(--primary-color);
}

.feature-box h4 {
    color: var(--secondary-color);
    font-weight: var(--f-weight);
    font-size: var(--title-small);
}

.feature-box p {
    text-align: var(--text-align);
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: var(--b-shadow);
}

.techniques i {
    color: var(--primary-color);
}

.card {
    border-left: solid 5px var(--primary-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--b-shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-bottom: 30px;
    height: 100%;
    background-color: var(--light-color);
}

.card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--b-shadow);
}

.card-img-top {
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:hover .card-img-top {
    transform: scale(1.1);
}

.card-body {
    padding: 25px;
}

.card-title {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-weight: var(--f-weight);
    font-size: var(--title-small);
}

.card-text {
    text-align: var(--text-align);
    color: var(--text-color);
}

.card .list-group-item {
    color: var(--text-color);
}

.contact-section .container {
    padding: 100px 0;
    margin-bottom: 80px;
    border: solid 2px var(--primary-color);
    background: var(--light-color);
    box-shadow: var(--b-shadow);
}

  footer i {
        font-size: var(--social-icon-footer);
    }

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 15s infinite linear;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }

    100% {
        transform: translateY(-1000px) rotate(720deg);
    }
}

/* RESPONSIVE */
@media (min-width: 768px) and (max-width: 992px) {

    .datetime {
        display: none;
    }

    footer {
        font-size: var(--f-small);
    }
   
    footer i {
        font-size: var(--social-icon-footer);
    }

}

@media (max-width: 768px) {
    * i {
        font-size: var(--social-icon);
    }

    * p {
        font-size: var(--f-small);
    }

    .hero-content h2 {
        font-size: var(--title-small);
        font-weight: var(--f-weight-2);
    }

    .responsive-demo {
    border: none;
}

    .feature-box p {
        text-align: var(--text-align);
        font-size: var(--f-small);

    }

    .card-text {
    font-size: var(--f-small);
}

.card .list-group-item {
    font-size: var(--f-small);
}

    footer i {
        font-size: var(--social-icon-footer);
    }

}