* { 
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

img {
    max-width: 100%;
    max-height: 100%;
}

:root {
    --color-red: #db0000;   /* primary color */
    --color-dark-red: #831010;  /* secondary color */
    --color-black: #000000;    /* background */
    --color-white: #ffffff;       /* text-color */
    --color-dark-gray: #564d4d;   /* secondary text-color*/  
    
    --font-primary: 'Helvetica Neue', Helvetica, Arial, sans-serif;

}

.wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    background-color: var(--color-black);
}

ul {
    display: flex;
    flex-direction: row;
    list-style: none;
    justify-content: space-around;
    background-color: var(--color-black);
    padding: 2em 0 2em 0;
}

ul li { 
    font-size: 2em;
}

ul li a  {
    color: var(--color-white);
    text-decoration: none;
    font-family: var(--font-primary);
}

ul li a:hover {
    color: var(--color-red);
    text-decoration: underline;
}

.introduction {
    padding: 2em;
    background-color: var(--color-black);
    color: var(--color-white);
    font-family: var(--font-primary);
}

footer {
    background-color: var(--color-black);
    color: var(--color-dark-gray);
    font-size: 2em;
    padding: 2em 0 2em 0;
}

footer p {
    justify-self: center;
}

.custom-h1 {
    color: var(--color-white);
    font-family: var(--font-primary);
    padding-left: 1em;
}

.projects { 
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 2em;
    color: var(--color-white);
    font-family: var(--font-primary);
    gap: 2em;
}
 
.projects > div {
    font-family: var(--font-primary);
    color: var(--color-red);
    padding: 0 2em 2em 2em;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
}

.projects > div > a {
    color: var(--color-white);
    font-family: var(--font-primary);
}

.projects > div > img {
    width: 500px;
    height: 550px;
}

.search {
    padding: 0 4em 0 4em;
}

.search > form > input,
.search > form > select,
.search > form > button {
    background-color: var(--color-black);
    color: var(--color-white);
    border: var(--color-red) 1px solid;
    padding: 0.5em;
    outline: none;
    cursor: pointer;
    font-size: 1em;
    font-family: var(--font-primary);
}


.search > form > input:focus {
    outline: var(--color-dark-red) solid;
}


.search fieldset {
    background-color: var(--color-black);
    padding: 0.5em;
    margin-bottom: 1em;
    border: 1px solid var(--color-red);
    border-radius: 2px;
}

.search fieldset legend {
    color: var(--color-red);
    font-family: var(--font-primary);
    font-size: 1em;
    padding: 0 0.3em;
}

.search fieldset label {
    display: block;
    background-color: var(--color-black);
    color: var(--color-white);
    border: 1px solid var(--color-red);
    padding: 0.4em 0.6em;
    border-radius: 2px;
    margin: 0.2em 0;
    font-family: var(--font-primary);
    font-size: 1em;
    cursor: pointer;
}

.search fieldset input[type="checkbox"] {
    accent-color: var(--color-red);
    margin-right: 0.5em;
    cursor: pointer;
}

.project {
    color: var(--color-white);
    padding: 2em;
    display: flex;
    flex-direction: column;
}