:root {
    --darkBrown: #502d16;
    --mediumBrown: #784421;
    --lightBrown: #a05a2c;
    --veryLightBrown: #f4e3d7;
    --darkGreen: #338000;
    --mediumGreen: #3d9900;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: var(--veryLightBrown);
    color: var(--darkBrown);
    font-family: sans-serif;
}

main {
    min-height: 82dvh;
    max-width: 1300px;
    margin: auto;
    padding: 15px 30px 60px;
}

@media screen and (max-width: 600px) {
    main {
        padding: 15px 15px 50px;
    }
}

h1, h2, h3 {
    margin: 15px 0;
    padding: 0;
    font-family: serif;
    text-align: center;
}

h1 {
    color: var(--mediumBrown);
    font-size: 60px;
    font-weight: 600;
}

h2 {
    color: var(--mediumBrown);
    font-size: 40px;
    font-weight: 600;
}

h3 {
    color: var(--lightBrown);
    font-size: 30px;
    font-weight: 400;
}

p {
    margin: 25px 0;
    padding: 0;
    line-height: 25px;
}

a {
    color: var(--darkGreen);
    text-decoration: none;
    white-space: nowrap;
}

a:hover {
    text-decoration: underline;
}

.desktop-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: sans-serif;
    background: white;
}

.desktop-menu a {
    padding: 15px;
}

.desktop-menu .mobile-menu-toggler {
    display: none;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background-color: white;
    padding: 0 15px 15px;
    text-align: center;
    font-family: sans-serif;
}

.mobile-menu a {
    padding: 15px;
}

@media screen and (max-width: 600px) {
    .desktop-menu a {
        display: none;
    }
    .desktop-menu a.mobile-menu-toggler {
        display: block;
        text-decoration: none;
    }
}

@media screen and (min-width: 601px) {
    .mobile-menu {
        position: absolute;
        top: -200px;
        left: -200px;
    }
}

.btn {
    border: 0;
    border-radius: 10px;
    padding: 15px 30px;
    text-align: center;
    font-size: 16px;
    color: white;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.5s;
}

.btn-success {
    background-color: var(--darkGreen);
}

.btn-danger {
    background-color: darkred;
}

.btn-submit {
    display: block;
    margin-top: 20px;
    width: 100%;
    font-size: 18px;
}

.btn-success:hover {
    background-color: var(--mediumGreen);
    text-decoration: none;
}

.btn-danger:hover {
    background-color: crimson;
    text-decoration: none;
}

.btn:disabled {
    background-color: gray;
}

form {
    max-width: 600px;
    margin: auto;
}

label {
    display: block;
    padding: 4px 4px 6px;
    font-weight: bold;
}

.label-checkbox {
    display: inline;
    padding: 0;
    font-weight: normal;
}

input[type=text],
input[type=number],
input[type=email],
input[type=password] {
    display: block;
    width: 100%;
    padding: 15px;
    margin-bottom: 15px;
    font-size: 18px;
    border: 0;
    border-radius: 10px;
}

input[type=checkbox] {
    margin: 0 10px;
    transform: scale(1.5);
}

textarea {
    display: block;
    width: 100%;
    padding: 15px;
    margin-bottom: 25px;
    font-size: 18px;
    font-family: sans-serif;
    line-height: 25px;
    border: 0;
    border-radius: 10px;
    resize: none;
}

.flash {
    padding: 15px;
    text-align: center;
    line-height: 25px;
}

.flash-success {
    background-color: honeydew;
    border-top: 1px solid var(--darkGreen);
    border-bottom: 1px solid var(--darkGreen);
    color: var(--darkGreen);
}

.flash-error {
    background-color: pink;
    border-top: 1px solid darkred;
    border-bottom: 1px solid darkred;
    color: darkred;
}

.card-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0;
}

@media screen and (max-width: 1010px) {
    .card-container {
        flex-direction: column;
    }

    .card-container a {
        white-space: wrap;
    }
}

.card {
    display: flex;
    flex-direction: column;
    flex: 1;
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
}

.earth-box {
    margin: 60px auto;
    padding: 30px;
    border-radius: 10px;
    background: linear-gradient(
        to bottom right,
        var(--mediumGreen),
        var(--lightBrown),
        var(--mediumBrown),
        var(--darkBrown),
        var(--darkGreen)
    );
    color: white;
}

hr {
    margin: 30px 0;
    border: 0;
    height: 1px;
}

.hr-dark {
    background-color: var(--lightBrown);
}

.hr-light {
    background-color: var(--veryLightBrown);
}

footer {
    padding: 30px 15px;
    background-color: white;
    text-align: center;
    font-size: 14px;
}