:root {
    --primary: #008dd1;
    --light: #f3f6f8;
    --dark: #0e2e50;
    --grey: #899aa5;
}

html {
    position: relative;
    min-height: 100%;
    font-family: Roboto, sans-serif;
}

body {
    margin-bottom: 400px; /* Margin bottom by footer height */
}

video {
    max-width: 80%;
}

.accordion-button:not(.collapsed) {
    color: var(--dark);
    background-color: var(--light);
}

a {
    border-color: var(--primary);
    color: var(--primary);
}

.benefit-icon {
    font-size: 1.5rem;
    color: var(--dark);
    width: 2.5rem;
    text-align: center;
}

.testimonial-img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
}

.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
}

.anchor {
    display: block;
    position: relative;
    top: -50px;
    visibility: hidden;
}

#project_map {
    height: 400px;
}

.bg-rps {
    background-color: var(--primary) !important;
}

.rps-highlight {
    background-color: var(--grey) !important;
    color: var(--light);
}

.bg-box-title-rps {
    background-color: var(--primary) !important;
    color: var(--light) !important;
    display: inline;
    padding: 0.1rem;

    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: inset 0 1px 1px var(--primary), 0 0 8px var(--primary);
}


.project-image {
    max-width: 400px;
    width: 100%;
}

.career-image {
    max-width: 100px;
    width: 100%;
}


/*** Spinner ***/
#spinner {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease-out,
    visibility 0s linear 0.5s;
    z-index: 99999;
}

#spinner.show {
    transition: opacity 0.5s ease-out,
    visibility 0s linear 0s;
    visibility: visible;
    opacity: 1;
}

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

.my-6 {
    margin-top: 6rem;
    margin-bottom: 6rem;
}

.py-6 {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

/*** Button ***/
.btn {
    font-weight: 500;
    transition: 0.5s;
}

.btn.btn-primary,
.btn.btn-outline-primary:hover {
    color: var(--light);
}

.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: 50px;
}

/*** Navbar ***/
.navbar .navbar-nav .nav-link {
    position: relative;
    margin-left: 25px;
    padding: 35px 0;
    color: var(--dark);
    font-weight: 500;
    outline: none;
    transition: 0.5s;
}

.navbar .navbar-nav .nav-link:hover,
.navbar .navbar-nav .nav-link.active {
    color: var(--primary);
}

.sticky-top.navbar .navbar-nav .nav-link {
    padding: 20px 0;
    color: var(--dark);
}

.sticky-top.navbar .navbar-nav .nav-link:hover,
.sticky-top.navbar .navbar-nav .nav-link.active {
    color: var(--primary);
}

.navbar .navbar-brand h1 {
    color: var(--dark);
}

.navbar .navbar-brand img {
    max-height: 60px;
    transition: 0.5s;
}

.sticky-top.navbar .navbar-brand img {
    max-height: 45px;
}

@media (max-width: 991.98px) {
    .sticky-top.navbar {
        position: relative;
        background: var(--light);
    }

    .navbar .navbar-collapse {
        margin-top: 15px;
        border-top: 1px solid #dddddd;
    }

    .navbar .navbar-nav .nav-link,
    .sticky-top.navbar .navbar-nav .nav-link {
        padding: 10px 0;
        margin-left: 0;
        color: var(--dark);
    }

    .navbar .navbar-nav .nav-link:hover,
    .navbar .navbar-nav .nav-link.active {
        color: var(--primary);
    }

    .navbar .navbar-brand h1 {
        color: var(--primary);
    }

    .navbar .navbar-brand img {
        max-height: 45px;
    }
}

@media (min-width: 992px) {
    .navbar {
        position: absolute;
        width: 100%;
        top: 0;
        left: 0;
        border-bottom: 1px solid rgba(256, 256, 256, 0.2);
        z-index: 999;
        background: var(--light);

    }

    .sticky-top.navbar {
        position: fixed;
        background: var(--light);
    }

    .navbar .navbar-nav .nav-link::before {
        position: absolute;
        content: "";
        width: 100%;
        height: 2px;
        bottom: 10px;
        left: 0;
        background: var(--light);
        opacity: 0;
        transition: 0.5s;
    }

    .sticky-top.navbar .navbar-nav .nav-link::before {
        background: var(--primary);
    }

    .navbar .navbar-nav .nav-link:hover::before,
    .navbar .navbar-nav .nav-link.active::before {
        bottom: -1px;
        left: 0;
        opacity: 1;
    }

    .navbar .navbar-nav .nav-link.nav-contact::before {
        display: none;
    }

    .sticky-top.navbar .navbar-brand h1 {
        color: var(--primary);
    }

    .navbar .nav-item .dropdown-menu {
        display: block;
        visibility: hidden;
        top: 100%;
        transform: rotateX(-75deg);
        transform-origin: 0% 0%;
        transition: 0.5s;
        opacity: 0;
    }

    .navbar .nav-item:hover .dropdown-menu {
        transform: rotateX(0deg);
        visibility: visible;
        transition: 0.5s;
        opacity: 1;
    }
}

/*** Hero Header ***/


.hero-header-index {
    margin-bottom: 6rem;
    padding: 12rem 0 5rem 0;
    background: linear-gradient(rgba(15, 15, 31, .6), rgba(15, 15, 31, .6)), url(/img/backgrounds/index.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}

.hero-header-title {
    font-size: 4.0rem;
    color: var(--primary);

    text-shadow: 1px 1px 0 var(--light),
    -1px 1px 0 var(--light),
    -1px -1px 0 var(--light),
    1px -1px 0 var(--light);

}

.hero-header-subtitle {
    font-size: 1.25rem;
    color: var(--light);
}

.hero-header-service {
    padding: 10rem 0 4rem 0;
    background: linear-gradient(rgba(20, 20, 31, .6), rgba(20, 20, 31, .6)), url(/img/backgrounds/lastplanner.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}


.hero-header-team {
    padding: 10rem 0 4rem 0;
    background: linear-gradient(rgba(20, 20, 31, .6), rgba(20, 20, 31, .6)), url(/img/backgrounds/teamwork.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}


.hero-header-career {
    padding: 10rem 0 4rem 0;
    background: linear-gradient(rgba(20, 20, 31, .6), rgba(20, 20, 31, .6)), url(/img/backgrounds/office.png);
    background-position: top;
    background-repeat: no-repeat;
    background-size: cover;
}

.hero-header-projects {
    padding: 10rem 0 4rem 0;
    background: linear-gradient(rgba(20, 20, 31, .6), rgba(20, 20, 31, .6)), url(/img/backgrounds/rail_horizontal.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}


.hero-header-generic {
    padding: 10rem 0 4rem 0;
    background-color: var(--primary);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    text-shadow: 1px 1px 0 var(--light),
    -1px 1px 0 var(--light),
    -1px -1px 0 var(--light),
    1px -1px 0 var(--light);
}

.page-header {
    margin-bottom: 6rem;
    padding: 12rem 0 6rem 0;
}

@media (max-width: 991.98px) {
    .hero-header {
        padding: 6rem 0 9rem 0;
    }

    .page-header {
        padding: 6rem 0;
    }
}

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

.breadcrumb .breadcrumb-item {
    color: var(--primary);
}

/*** Service ***/
.service-item {
    box-shadow: 0 0 45px rgba(0, 0, 0, 0.07);
    border: 1px solid transparent;
    transition: 0.5s;
}

.service-item:hover {
    box-shadow: none;
    border-color: var(--primary);
}

.service-item .service-icon,
.service-item .service-btn {
    margin: -1px 0 0 -1px;
    width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    background: var(--primary);
    border-radius: 5px 0;
    transition: 0.5s;
}

.service-item .service-btn {
    margin: -1px -1px 0 0;
    border-radius: 0 5px;
    opacity: 0;
}

.service-item:hover .service-btn {
    opacity: 1;
}


/*** Projects view ****/

.project-image {
    border-radius: 15px;
    position: relative;
    overflow: hidden;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: filter 0.3s;
}

.project-image:hover img {
    filter: grayscale(100%); /* Turn image to black and white on hover */
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
    background: rgba(0, 0, 0, 0.5); /* Optional: dark background for better visibility */
}

.project-image:hover .overlay {
    opacity: 1; /* Show overlay on hover */
}

.link-icon {
    color: white;
    font-size: 2rem; /* Adjust size as needed */
}

.project-name {
    text-align: center;
    margin-top: 10px;
}

.filter-label {
    cursor: pointer;
    margin-right: 15px;
    font-weight: bold;
    position: relative;
}

.filter-label.active {
    text-decoration: underline; /* Underline for active label */
}

/*** Testimonial ***/
.projects-carousel .owl-item .testimonial-item {
    box-shadow: 0 0 45px rgba(0, 0, 0, 0.07);
    border: 1px solid transparent;
    transform: scale(0.85);
    transition: 0.5s;
}

.projects-carousel .owl-item.center .testimonial-item {
    box-shadow: none;
    border-color: var(--primary);
    transform: scale(1);
}

.projects-carousel .owl-item.center .testimonial-item a {
    border-color: var(--primary);
    font-size: 1.1rem;
    color: var(--primary);
}

.projects-carousel .owl-item .testimonial-item img {
    width: 200px;
    height: 200px;
}

.projects-carousel .owl-nav {
    margin-top: 20px;
    display: flex;
    justify-content: center;
}

.projects-carousel .owl-nav .owl-prev,
.projects-carousel .owl-nav .owl-next {
    margin: 0 12px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 45px;
    transition: 0.5s;
}

.projects-carousel .owl-nav .owl-prev:hover,
.projects-carousel .owl-nav .owl-next:hover {
    color: var(--light);
    background: var(--primary);
}

/*** Team ***/
.team-item {
    position: relative;
    padding: 30px;
    text-align: center;
    transition: 0.5s;
    z-index: 1;
    background-color: var(--light);
}


.team-item h5,
.team-item p {
    transition: 0.5s;
}

@media screen and (min-width: 800px) {
    .team-item:hover img {
        transform: scale(1.1);
        filter: grayscale(1.0);
    }

    .team-item:hover {
        background-color: var(--grey);
    }
}

.team-item img {
    padding: 5px;
    border: 1px solid var(--primary);
}

/*** Footer ***/
.footer .btn.btn-social {
    margin-right: 5px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    border: 1px solid rgba(256, 256, 256, 0.1);
    border-radius: 40px;
    transition: 0.3s;
}

.footer .btn.btn-social:hover {
    color: var(--primary);
}

.footer .btn.btn-link {
    display: block;
    margin-bottom: 10px;
    padding: 0;
    text-align: left;
    color: var(--light);
    font-weight: normal;
    transition: 0.3s;
}

.footer .btn.btn-link::before {
    position: relative;
    content: "\f105";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    margin-right: 10px;
}

.footer .btn.btn-link:hover {
    letter-spacing: 1px;
    box-shadow: none;
}

.footer .copyright {
    padding: 25px 0;
    font-size: 14px;
    border-top: 1px solid rgba(256, 256, 256, 0.1);
}

.footer .copyright a {
    color: var(--light);
}

.footer .footer-menu a {
    margin-right: 15px;
    padding-right: 15px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .footer-menu a:last-child {
    margin-right: 0;
    padding-right: 0;
    border-right: none;
}


.railroad-track {
    position: relative;
    width: 100%; /* Full width of the parent */
    height: 60px; /* Height to accommodate rails, sleepers, fasteners, and ballast */
    background-color: var(--light);
    overflow: hidden;
}

/* Top rail */
.railroad-track::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--primary);
    z-index: 3;
}

/* Bottom rail */
.railroad-track::after {
    content: "";
    position: absolute;
    top: 26px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--primary);
    z-index: 3;
}

/* Sleepers (ties) */
.railroad-track .sleepers {
    position: absolute;
    top: 0px;
    bottom: 18px;
    left: 0;
    width: 100%;
    background-image: repeating-linear-gradient(
            to right,
            var(--primary) 0,
            var(--primary) 3px, /* Sleeper width */ transparent 3px,
            transparent 30px /* Sleeper spacing */
    );
    background-size: 30px 100%;
    z-index: 2;
}

/* Fasteners (between rails and sleepers) */
.railroad-track .fasteners {
    position: absolute;
    top: 10px;
    bottom: 24px;
    left: 0;
    width: 100%;
    background-image: repeating-linear-gradient(
            to right,
            var(--primary) 0,
            var(--primary) 1px, /* Fastener width */ transparent 1px,
            transparent 30px /* Fastener spacing */
    );
    background-repeat: repeat-x;
    background-position: top, bottom;
    height: 100%;
    z-index: 1;
}

/* Ballast (gravel beneath sleepers) */
.railroad-track .ballast {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 10px;
    background: repeating-linear-gradient(
            to right,
            var(--primary) 0,
            var(--primary) 2px,
            transparent 2px,
            transparent 6px
    );
    background-size: 6px 100%;
    z-index: 0;
}