html, body, main{
    height: 100%;
}

:root {
    --defaultRead:#ffffff;
    --defaultBack:#02001b;
    --defaultAlt:#070024;
}

nav{
    position: fixed;
    top: 0;
    right:0;
    left:0;
    z-index: 2;
}

.head-text{
    font-family: Arial, Helvetica, sans-serif;
    color: white;
}

.flex-fix{
    display: flex;
    flex-direction: row;
    align-items: center;
}
.flex-fix * {
    padding: 2px;
}

.navbar{
    position: relative;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color: rgb(6, 40, 90);
    padding: 5px;
    box-sizing: border-box;
}

.logo{
    width: 25px;
    border-radius: 100%;
}

.navbar li{
    font-family: Arial, Helvetica, sans-serif;
    color: var(--defaultRead);
    transition: ease-in-out 0.25s;
    transform: scale(1);
}

.navbar li:hover{
    transform: scale(1.2);
}

.navbar li a{
    text-decoration: none;
    color: var(--defaultRead);
}

.navbar li a:hover{
    color: rgb(211, 211, 211);
}

.hidden{
    max-height: 0;
    padding: 0;
    opacity: 0;
    transition: ease-in-out 1s;
    pointer-events: none;
}
.show{
    max-height: 100px;
    padding: 5px;
    opacity: 1;
    transition: ease-in-out 1s;
    background-color: rgb(19, 59, 119);
}
.header{
    position: relative;
}

body{
    background-color: var(--defaultBack);
}

.hero-image{
    background-image: url(images/hero1.jpg);
    height: 90%;
    width:100%;
    background-position: top;
    background-repeat: no-repeat;
    background-size: cover;
}

.hero1{
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack) 75%),linear-gradient(to bottom, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack)), url("images/hero1.jpg");
}
.hero2{
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack) 75%),linear-gradient(to bottom, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack)), url('images/hero2.jpg');
}
.hero3{
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack) 75%),linear-gradient(to bottom, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack)), url('images/hero3.jpg');
}
.hero4{
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack) 75%),linear-gradient(to bottom, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack)), url('images/hero4.jpg');
}
.hero5{
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack) 75%),linear-gradient(to bottom, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack)), url('images/hero5.jpg');
}
.hero6{
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack) 75%),linear-gradient(to bottom, rgba(0, 0, 0, 0.0) 20%,  var(--defaultBack)), url('images/hero6.jpg');
}

.hero-heading-text{
	color: var(--defaultRead);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right:2%;
    box-sizing: border-box;
	text-align: center;
	font-size: 3em;
    text-align: left;
    font-family: Helvetica, sans-serif;
    font-weight: bold;
    z-index: 0;
}

/* sections */
.alternate-background{
    background-image: linear-gradient(to bottom, var(--defaultBack), var(--defaultAlt) 20%);
}

.dark-background{
    background-image: linear-gradient(to bottom, var(--defaultAlt), var(--defaultBack) 20%);
}

.section {
    height: 90%;
    width:100%;
    display: flex;
    flex-direction: row;
    align-items: center;
}

.side-margins{
    box-sizing: border-box;
    padding: 0 15%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

.vertical {
    flex-direction: column;
}

.section-heading{
    color: var(--defaultRead);
    font-size: 3em;
    font-family: Helvetica, sans-serif;
    padding: 5px 0;

}

.section-text{
    color: var(--defaultRead);
    font-size: 1.5em;
    line-height: 1.3em;
    font-family: 'Times New Roman', Times, serif;
}

.circle-image {
    width: 25%;
    border-radius: 100%;
    margin:1em;
}

.sample-image {
    width: 50%;
    border-radius: 1%;
    margin:1em;
}

footer{
    background-color: var(--defaultAlt);
}

.footer-text{
    color: var(--defaultRead);
    font-size: 1em;
    line-height: 1.3em;
    font-family: 'Times New Roman', Times, serif;
    text-align: center;
    padding:5px;
}