:root {
    --text-color: #DAD7CD;
    --secondary-color: #A3B18A;
    --secondary-bg-color: #588157;
    --button-bg-color: #3A5A40;
    --bg-color: #344E41;
    --button-padding: 16px 32px;
    --nav-link-padding: 8px 16px;
}

html {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

body {
    font-size: 1rem;
    background-color: var(--bg-color);
    padding: 0;
    margin: 0;
    color: var(--text-color);
}

button {
    background-color: var(--button-bg-color);
    border-radius: 8px;
    border-width: 1px;
    padding: var(--button-padding);
}

hr {
    width: 10%;
}

button a {
    font-size: 1.5rem;
    padding: var(--button-padding);
}

a {
    text-decoration: none;
    color: var(--text-color);
}

a:visited {
    color: var(--text-color);
}

a:active {
    color: var(--text-color);
}

nav {
    width: 100%;
    padding: 0px;
    text-align: center;
    background-color: var(--secondary-bg-color);
}

nav ul {
    display: inline-block;
    padding: 0px;
}

nav li {
    display: inline;
    list-style: none;
}

nav li a {
    padding: var(--nav-link-padding);
    font-size: 1.2rem;
}

nav li a:hover {
    background-color: var(--secondary-color);
}

img {
    max-width: 512px;
}

.container {
    padding: 0px 30px;    
    font-size: 1.5rem;
}

.height-max {
    height: 100vh;
}

.grid {
    display: grid;
    grid-template-columns: repeat(4, 25%);
}

.grid-item {
    min-width: 256px;
    min-height: 128px;
    padding: var(--nav-link-padding);
}

.grid-item:hover{
    background-color: var(--secondary-bg-color);
}

.flex-column {
    display: flex;
    flex-direction: column;
}

.flex-row {
    display: flex;
    flex-direction: row;
}

.center {
    align-items: center;
    justify-content: center;
    row-gap: 30px;
    text-align: center;
    align-content: center;
}

.icon {
    fill: var(--text-color);
    margin: 0 8px;
}