body.lightmode {
    --background: #c8c8c8;
    --hearder-backround: linear-gradient(to right, #0067c8, #003a70);
    --textColor: black;
    --shadow-box: rgba(0, 0, 0, 0.3);
}

body.darkmode {
    --background: #333;
    --hearder-backround: linear-gradient(to right, #00498d, #001f4d);
    --textColor: white;
    --shadow-box: rgba(2525, 255, 255, 0.3);
}


body {
    background-color: var(--background);
    margin: 0;
}

header {
    background-image: var(--hearder-backround);
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    border-bottom: solid 2px var(--textColor);
    box-shadow: 5px 5px 10px var(--shadow-box);
    margin: 0;
    padding: 20px;
}

main {
    margin: 0;
    padding: 20px;
}

h1 {
    color: white;
    font-weight: 800;
    font-size: 34px;
    width: fit-content;
    display: flex;
    flex-direction: row;
    align-items: center;
}

h2 {
    color: var(--textColor);
    font-weight: 800;
    font-size: 48px;
    width: fit-content;
}

h3 {
    color: var(--textColor);
    font-weight: 600;
    font-size: 30px;
    margin-top: 40px;
    width: fit-content;
    border-bottom: solid 1px var(--textColor)
}

p, a {
    color: var(--textColor);
    font-weight: 300;
    font-size: 20px;
}

nav .button {
    padding: 10px;
    border-radius: 10px;
}

header .button:hover {
    transform: scale(1.3);  
}

header img.logo {
    height: 60px;
    width: 60px;
    filter: brightness(1.6);
}

header .button img {
    height: 42px;
    width: 42px;
}