*{
    /* CSS Reset */
    padding: 0;
    margin: 0;
    border: 0;
    box-sizing: border-box;

    /* Default Bootstrap's Font Styling */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: #212529;
}


/* Default Bootstrap's Heading Styling */
h1, h2, h3, h4, h5, h6{
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}


/* Custom Styling Begins */


/* Header */

header{
    display: grid;
    grid-template-columns: 1fr auto;
    background-color: #282a35;
    padding: 2rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.nav ul{
    list-style-type: none;
}

.nav ul li{
    display: inline-block;
    padding: 0.75rem 0 0 3rem;
}

.nav ul li a{
    text-decoration: none;
    color: white;
    font-size: 1rem;
}

.menu-icon{
    display: none;
}

.logo{
    font-size: 2rem;
    color: white;
}

.support-btn{    
    background-color: #282a35;
    border: 1px solid white;
    padding: 0.5rem 2rem;
    font-size: 1rem;
    color: white;
    cursor: pointer;
    border-radius: 1.21875rem;
    transition: 0.3s ease-out;
}

/* Apply hover effects only on devices which support hover and have a pointing device with high accuracy such as a mouse. */
@media (hover: hover) and (pointer: fine) {
    .support-btn:hover{
        border-color: greenyellow;
        color: greenyellow;
    }
}

.support-btn:active{
    border-color: greenyellow;
    color: greenyellow;
    opacity: 0.5;
}

.home-link, .vehicles-link, .objectives-link, .about-link{
    padding-bottom: 0.3rem;
    border-bottom: 2px solid #282a35;
    transition: border-bottom 0.3s ease-out;
}

@media (hover: hover) and (pointer: fine) {
    .home-link:hover, .vehicles-link:hover, .objectives-link:hover, .about-link:hover{
        border-bottom: 2px solid white;
    }
}

.home-link:active, .vehicles-link:active, .objectives-link:active, .about-link:active{
    border-bottom: 2px solid greenyellow;
}


/* Main */

.intro-div{
    display: grid;
    grid-template-columns: 1fr auto;
    background-color: #282a35;
    padding: 11rem 0 6rem 0;
}

.intro-section{
    padding: 0 12rem 0 2rem;
    display: flex;
    align-items: center;
}

.decoration-photo{
    height: 350px;
    padding-right: 2rem;
}

.slogan-one{
    color: white;
    padding-top: 1rem;
}

.slogan-two{
    text-align: center;
    color: white;
    display: none;
}

.main-heading{
    color: white;   
}

.intro{
    color: white;
    padding-top: 1rem;
}

.contact-us-btn{
    background-color: #fff4a3;
    padding: 1rem 2rem 1rem 2rem;
    font-size: 1rem;
    color: black;
    font-weight: 500;
    cursor: pointer;
    border-radius: 1.75rem;
    display: inline-block;
    margin-top: 2rem;
    text-decoration: none;
    transition: 0.3s ease-in;
}

@media (hover: hover) and (pointer: fine) {
    .contact-us-btn:hover{
        opacity: 0.5;
    }
}

.contact-us-btn:active{
    transform: scale(1.3);
}

@media (max-width: 1023px) {
    .nav{
        display: none;
    }

    .intro-div{
        display: grid;
        grid-template-columns: auto;
        padding: 7rem 2rem 0 2rem;
    }

    .decoration-photo{
        display: block;
        margin: 6rem auto 0 auto;
        padding: 0;
    }

    .slogan-one{
        display: none;
    }
    
    .slogan-two{
        padding-top: 1rem;
        padding-bottom: 6rem;
        display: block;
    }

    .intro-section{
        display: grid;
        padding: 4rem 0 0 0;
        text-align: center;
    }

    .menu-icon{
        display: block;
        color: white;
        font-size: 2rem;
        cursor: pointer;
        background-color: #282a35;
    }
}

@media (max-width: 375px) {
    .logo{
        font-size: 1.5rem;
    }

    .menu-icon{
        font-size: 1.5rem;
    }

    .decoration-photo{
        width: 100%;
        height: auto;
    }
}


/* Sidebar */

.sidebar{
    background-color: #282a35;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: none;
    z-index: 150;
    padding-bottom: 2rem;
}

.close-btn{
    width: 100%;
    background-color: #282a35;
    padding: 2rem;
    color: greenyellow;
    cursor: pointer;
    text-align: left;
    font-size: 1.2rem;
    border-bottom: 1px solid greenyellow;
}

.sidebar ul li a{
    display: block;
    padding: 1rem 1rem 1rem 2rem;
    text-decoration: none;
    color: white;
}


/* About and Objectives Section */

.about-section{
    background-color: #d9ede0;
    padding: 4rem 20% 4rem 20%;
    scroll-margin-top: 7rem;
}

.about-par{
    /* font-weight: 500; */
    font-size: 1.2rem;
}

.objective-heading{
    text-transform: uppercase;
    padding-top: 4rem;
    padding-bottom: 1rem;
    scroll-margin-top: 7rem;
}

.objectives-par{
    /* font-weight: 500; */
    padding-bottom: 1rem;
}

@media (max-width: 768px) {
    .about-section{
        padding: 4rem 10% 4rem 10%;
    }
}

@media (max-width: 425px) {
    .about-section{
        padding: 4rem 2rem 4rem 2rem;
    }    
}


/* Vehicles Section */

.vehicles-section{
    background-color: #f4ecea;
    padding: 4rem 20% 4rem 20%;
    scroll-margin-top: 7rem;
}

.vehicles-heading{
    padding-bottom: 1rem;
    text-transform: uppercase;
}

.vehicles-par{
    /* font-weight: 500; */
    padding-bottom: 1rem;
}

.vehicles-section details{
    margin-bottom: 1rem;
    cursor: pointer;
}

.vehicles-img{
    height: 350px;
    width: 350px;
    margin-top: 1rem;
    border-radius: 10px;
}

.summary-description{
    cursor: text;
}

@media (max-width: 768px) {
    .vehicles-section{
        padding: 4rem 10% 4rem 10%;
    }
}

@media (max-width: 600px) {
    .vehicles-img{
        width: 100%;
        height: auto;
    }
}

@media (max-width: 425px) {
    .vehicles-section{
        padding: 4rem 2rem 4rem 2rem;
    }    
}


/* Footer */
footer{
    padding: 2rem 20% 4rem 20%;
    background-color: black;
}

.footer-div{
    display: grid;
    grid-template-columns: 33.33% 33.33% 33.33%;
    padding-right: 2rem;
}

.contacts-title, .social-media-title, .useful-links-title, .email-title{
    color: yellowgreen;
    font-weight: 500;
    padding: 2rem 0 1rem 0;
}

.contact{
    color: white;
}

.social-media, .useful-link, .contact-link{
    color: white;
    display: block;
    text-decoration: none;
}

.copyright-par{
    color: white;
    padding-top: 2rem;
    border-top: 1px solid yellowgreen;
    margin-top: 4rem;
}

@media (max-width: 1023px) {
    .footer-div{
        grid-template-columns: 50% 50%;
    }
}

@media (max-width: 768px) {
    footer{
        padding: 2rem 10% 4rem 10%;
    }

    .footer-div{
        grid-template-columns: 100%;
    }
}

@media (max-width: 425px) {
    footer{
        padding: 2rem 2rem 4rem 2rem;
    }  
}