*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --color-text-accent-light: hsl(255 0% 100% / 1);
    --color-text-accent-dark: hsl(0 0% 0% / 1);

    --color-white: hsl(255 0% 100% / 1);
    --color-black: hsl(0 0% 0% / 1);
    --color-mediumlightblue: hsl(210 50% 40% / 1);
    --color-darkblue: hsl(231 100% 16% / 1);
    --color-cautionyellow: hsla(53, 100%, 66%, 1);
    --color-darkgray: hsla(0, 0%, 15%, 1);
    --color-lightgray: hsla(0, 0%, 27%, 1);    
}

/* Reset */

h1,
h2,
h3,
span,
p {
    margin: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

a,
a.visited {
    text-decoration: none;
}

body {
    margin: 0 auto;
    min-width: 320px;
    width: 100%;    

    overflow: hidden;
}

/* Header */

header {
    display: flex;
    flex-direction: row wrap;
    justify-content: center;
    align-items: center;
    width: 100%;

    background-color: var(--color-darkgray);
    border-bottom: 1px solid var(--color-text-accent-dark);
}

.main-menu {
    width: 100%;   
}

.menu-item {
    display: inline-block;
    background-color: var(--color-lightgray);
    border-radius: 5px 5px;
}

.menu-item a {
    display: inline-block;
    width: 15ch;
    height: clamp(1.75rem, 5vh + 1rem, 3rem);
    line-height: clamp(1.75rem, 5vh + 1rem, 3rem);

    border: 1px solid var(--color-text-accent-dark);
    border-radius: 5px 5px;    

    text-align: center;
    color: var(--color-text-accent-light);
}

.menu-item a:hover,
.menu-item a:focus {
    background-color: var(--color-mediumlightblue);
    box-shadow: inset 0 0 .10em .10em var(--color-text-accent-light);
}

.logo {
    width: clamp(15rem, 15vw + 1rem, 25rem);
    z-index: 1; 
}

.logo a:hover {
    transform: scale(1.5);
}

main {
    display: flex;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.construction {
    padding-top: .25em;
    padding-bottom: .25em;
    width: 100%;
    font-size: xx-large;
    font-weight: 700;
    font-family: 'Courier New', Courier, monospace;
    text-align: center;

    background-image: repeating-linear-gradient( 
        -45deg, 
        var(--color-black), 
        var(--color-black) 15px, 
        var(--color-cautionyellow) 15px, 
        var(--color-cautionyellow) 30px);
}

.construction p {
    background-color: var(--color-text-accent-light);
}

.container {
    background-color: var(--color-lightgray);
}

.container .content {
    padding: 1em 0;
    width: 100%;
    min-width: 25ch;
    max-width: 1200px;
    background-color: var(--color-white);
}

footer {
    position: fixed;
    bottom: 0;

    display: flex;
    justify-content: center;
    align-items: center;

    width: 100%;
    height: clamp(1em, calc(10vh + 1rem), 2.5em);

    background-color: var(--color-lightgray);
    border-top: 1px solid var(--color-black);
}

footer .copyright {
    font-size: large;
    font-weight: 600;
}