:root {
    --primary: #A0A0A0;
    --light: #F0FBFC;
    --dark: #181d38;
}

.text-primary
{
    color:black;
}

.fw-medium {
    font-weight: 600 !important;
}

.fw-semi-bold {
    font-weight: 700 !important;
}

.back-to-top {
    position: fixed;
    display: none;
    right: 45px;
    bottom: 45px;
    z-index: 99;
}

.box-border:focus {
    border-color: #A0A0A0 !important;
    outline: none !important;
    box-shadow: 0 0 5px #A0A0A0 !important;
}

.text-black
{
    color:black;
}

/*** Spinner ***/
#spinner {
    opacity: 0;
    visibility: hidden;
    transition: opacity .5s ease-out, visibility 0s linear .5s;
    z-index: 99999;
}

#spinner.show {
    transition: opacity .5s ease-out, visibility 0s linear 0s;
    visibility: visible;
    opacity: 1;
}

.text-justify {
    text-align: justify;
}

.btn {
    font-family: 'Arial', sans-serif;
    font-weight: 600;
    transition: .5s;
}

.btn i {
    margin-right: 8px;
}

.btn span {
    font-family: 'Arial', sans-serif;
    font-weight: 600;
    margin-left: 10px;
}

.btn.btn-primary,
.btn.btn-secondary {
    color: #ffffff;
    background-color: var(--primary);
}

.btn-square {
    width: 38px;
    height: 38px;
}

.btn-sm-square {
    width: 32px;
    height: 32px;
}

.btn-lg-square {
    width: 48px;
    height: 48px;
}

.btn-square,
.btn-sm-square,
.btn-lg-square {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: normal;
    border-radius: 0px;
}

.page-header {
    background: linear-gradient(rgba(24, 29, 56, .7), rgba(24, 29, 56, .7)), url(../img/carousel-1.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}

.page-header-inner {
    background: rgba(15, 23, 43, .7);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--light);
}


/*** Section Title ***/
.section-title {
    position: relative;
    display: inline-block;
    text-transform: uppercase;
}

.section-title::before {
    position: absolute;
    content: "";
    width: calc(100% + 80px);
    height: 2px;
    top: 4px;
    left: -40px;
    background: var(--primary);
    z-index: -1;
}

.section-title::after {
    position: absolute;
    content: "";
    width: calc(100% + 120px);
    height: 2px;
    bottom: 5px;
    left: -60px;
    background: var(--primary);
    z-index: -1;
}

.section-title.text-start::before {
    width: calc(100% + 40px);
    left: 0;
}

.section-title.text-start::after {
    width: calc(100% + 60px);
    left: 0;
}

.physics-item {
    transition: 0.5s;
    text-align: justify;
}

.physics-item img {
    transition: .5s;
    border-radius: 10px;
}

.physics-item:hover img {
    transform: scale(1.1);
}

.responsive-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    padding: 0;
    pointer-events: none;
    transform: none !important;
    transition: none !important;
}

.no-margin-padding {
    margin: 0;
    padding: 0;
}