:root {
    --white: #ffffff;
    --white-100: #f5f5f5;
    --white-200: #e9ecef;
    --white-300: #dddddd;
    --black: #000000;
    --black-500: #212529;
    --black-800: #424649;
    --yellow: #ffc800;
    --dark-yellow: #d9aa00;
    --dark-grey: #6c757d;
}
html{
    scroll-behavior: smooth;
} 
body {
    padding: 0;
    margin: 0;
    font-family: "Roboto Slab", serif !important;
    font-size: 16px;
}

/* variable start  */
h1 {
    font-size: 72px;
    font-weight: 700;
    line-height: 72px;
    margin-bottom: 64px;
    color: var(--white);
    font-family: "Montserrat", sans-serif;
}
h2 {
    font-size: 40px;
    line-height: 40px;
    margin-top: 0;
    margin-bottom: 46px;
    font-family: "Montserrat", sans-serif;
    font-weight: 700;

}
h4 {
    font-size: 24px;
    line-height: 24px;
    font-weight: 700;
    font-family: "Montserrat", sans-serif;
    
}
p {
    font-size: 16px;
    line-height: 26px;
    color: var(--dark-grey);
    margin: 0;
}
.primary_btn {
    padding: 20px 40px;
    background-color: var(--yellow);
    border: 1px solid var(--yellow);
    font-family: "Montserrat", sans-serif;
    font-weight: 700;
}
.primary_btn:hover {
    background-color: var(--dark-yellow);
    border: 1px solid var(--dark-yellow);

}
.spacer-t {
    padding-top: 100px;
}
.spacer-y {
    padding: 100px 0;
}
/* variable close */

/* header css start */ 
 

/* Header Default */
.main_header{
    position: fixed;
    top:0;
    left:0;
    width:100%;
    z-index:999;

    padding:25px 0;
    background: transparent;

    transition: all 0.4s ease;
}

/* Scroll Effect */
.main_header.header_scrolled{
    background: var(--black);
    padding:12px 0;
    box-shadow:0 4px 15px rgba(0,0,0,0.3);
}

/* Dummy sections */
.demo_section{
    background: var(--white-100);
    border-bottom:1px solid var(--white-300);
}
.main_header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 0;
}
.main_header .navbar a {
    font-size: 24px;
    color: var(--yellow);
    font-family: "Montserrat", sans-serif;
    font-weight: 700;
    letter-spacing: .0625em;
     
}
.main_header ul li {
    margin-right: 16px !important;
}
.main_header ul li a {
    font-size: 15px !important;
    line-height: 20px !important; 
    letter-spacing: .0625em !important;
    font-family: "Montserrat", sans-serif;
    font-weight: 400 !important;
    color: var(--white) !important;
}

/* hero css start */
section.hero_section {
    text-align: center;
    color: var(--white);
    background-image: url(../images/hero_img.jpg);
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-position: center center;
    background-size: cover;
    padding-top: 272px;
    padding-bottom: 200px;
}
.hero_column span {
    font-size: 36px; 
    line-height: 36px;
    margin-bottom: 32px; 
}
section.hero_section::before {
    content: "";
    background: #00000029;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
} 
/* hero css close */

/* service css start */
.service_img {
    background-color: var(--yellow);
    width: 256px;
    height: 256px;
}
.service_content {
    padding: 0 20px 40px 20px;
}
.service_img svg{
    width: 100px;
}
/* service css close */

/* portfolio css start */
.portfolio_img img {
    height: 230px;
}
.portfolio_content {
    padding: 24px; 
}
/* portfolio css close */

/* about css start */
.about img {
    width: 156px;
    border: 7px solid var(--white-200);
}
.row.about_row::before {
    position: absolute;
    left: 50%;
    width: 2px;
    margin-left: -1.5px;
    content: "";
    background-color: var(--white-200);
    transform: translate(-50%, 0);
    height: 100%;
    bottom: -156px;
}
.about_btn {
    border: 7px solid var(--white-200);
    background-color: var(--yellow);
    width: 170px;
    height: 170px;
    padding: 0 30px;
}
.about_row {
    margin-bottom: 130px;
}
.about_btn span {
    font-size: 18px;
    line-height: 26px;
    font-family: "Montserrat", sans-serif;
}
/* about css close */

/* team css start */
.team_img img {
    border: .5rem solid rgba(0, 0, 0, .1);
    width: 224px;
    height: 224px;
}
.team_content h4 {
    margin-top: 24px;
    margin-bottom: 2px;
}
/* team css close */

/* contact us css start */
.contactUs {
    background-color: var(--black-500);
    background-image: url(../images/map-image.png);
    background-repeat: no-repeat;
    background-position: center;
    margin-top: 96px;
}
.contact_heading h2 {
    margin-bottom: 68px;
}
.contactUs form input:focus {
    border: 1px solid var(--yellow);
}
.contactUs form input:focus-visible {
    outline: 0;
}
.contactUs form input {
    padding: .375rem .75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--black-500);
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid #ced4da;
    appearance: none;
    border-radius: .375rem; 
    padding: 20px;
    margin-bottom: 24px;
}
.contact_btn {
    margin-top: 24px;
}
/* contact us css close */

/* footer css start */
.social_icon {
    width: 40px;
    height: 40px;
    background: var(--black-500);
    border: 1px solid var(--black-500);
    margin: 0 8px;
}
.social_icon:hover {
    background-color: var(--black-800);
    border: 1px solid var(--black-800)
}
.social_icon svg {
    width: 14px;
}
footer.main_footer {
    padding: 24px 0;
}
.footer_col p , .footer_col ul li a {
    font-family: "Montserrat", sans-serif;
    color: var(--black-500);
}
.footer_col ul li {
    margin-right: 16px;
}
/* footer css close */