/*
Sites used for the project:
Fonts: https://fonts.google.com/?query=open
Backgrounds: https://www.svgbackgrounds.com/
HTML validator: https://validator.w3.org/nu/#textarea
Acessibility validator: https://wave.webaim.org/
DOT representation: 
https://imagemagick.org/script/download.php
dot -T png -O modelo.dot
https://renenyffenegger.ch/notes/tools/Graphviz/examples/index

void dfs_print(node* p, int* nnull) {

  if (p == NULL)
    return;

  if (p->left == NULL) {
    printf("  N%d [shape=point];\n",*nnull);
    printf("  %d -> N%d;\n",p->key,*nnull);
    *nnull += 1;
  }
  else {
    printf("  %d -> %d;\n",p->key,p->left->key);
    dfs_print(p->left,nnull);
  }

  if (p->right == NULL) {
    printf("  N%d [shape=point];\n",*nnull);
    printf("  %d -> N%d;\n",p->key,*nnull);
    *nnull += 1;
  }
  else {
    printf("  %d -> %d;\n",p->key,p->right->key);
    dfs_print(p->right,nnull);
  }
}

void bst_print_dot(tree* T) {

  printf("digraph BST {\n");
  printf("  node [fontname=\"Arial\"];\n");

  int n = 0;
  dfs_print(T->root, &n);

  printf("}\n");
}

*/

.intro-content {
    position: relative;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--gap);
}

.intro-text-content, .intro-img {
    display: flex;
    flex-flow: column nowrap;
    justify-content: center;
    align-items: center;
    max-width: 80vw;
}

.intro-text-content h2 {
    text-transform: uppercase;
    margin-bottom: 5rem;
    line-height: 1;
}

.intro-img img {
    width: 100%;
    height: 100%;
    min-width: 10rem;
    min-height: 10rem;
    max-width: 20rem;
    max-height: 20rem;
    border-radius: 50%;
}

.bst-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--gap);
}

.bst-text-content, .bst-img {
    display: flex;
    flex-flow: column nowrap;
    justify-content: center;
    max-width: 80vw;
}

.bst-text-content h2 {
    text-transform: uppercase;
    margin-bottom: 5rem;
    line-height: 1;
}

.bst-img img {
    width: 100%;
    height: auto;
    max-width: 50rem;
}

.methods {
    margin-top: 6.7rem;
}

.methods .methods-content {
    max-width: 80%;
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
}

.methods-content iframe {
    margin-top: 5vh;
    margin-bottom: 5vh;
}

.methods-grid .grid-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.methods-grid h2 {
    display: flex;
    flex-flow: column nowrap;
}

.methods-grid .grid-content h3 {
    display: flex;
    flex-flow: column nowrap;
    font-size: 3rem;
}

.methods-grid .grid-content p {
    display: flex;
    flex-flow: column nowrap;
    justify-content: space-around;
}

.code .main-content .program-name,
.program-code {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--gap);
}

.code .main-content .program-name h3 {
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
    font-size: 3rem;
}

.code .main-content .program-name-mobile:nth-child(1) {
    margin-top: 3rem;
}

.code .main-content .program-code pre {
    display: flex;
    max-width: 80vw;
    flex-flow: column nowrap;
    justify-content: left;
    font-size: 1.5rem;
    height: 75vh;
    border: solid #cccccc 1px;
    overflow-y: scroll;
    overflow-x: paged-x;
}

.program-name-mobile {
    display: none;
}

.other .main-content h2 {
    align-items: center;
    margin-bottom: 5rem;
}

.other .grid-content h3 {
    align-items: center;
    color: white;
    margin-bottom: 1rem;
}

.other .grid-div {
    color: white;
    max-width: 100%;
    max-height: 100%;
}

.other .grid-image {
    width: 36rem;
    height: 36rem;
    transition: all 300ms ease-in-out;
}

.other .grid-image:hover {
    transform: scale(1.05) rotate(2deg);

}

.contact-form {
    grid-column: span 2;
}

.contact-form .form-grid {
    border: none;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--gap);
}

.form-grid legend {
    font-style: italic;
    font-size: 1.6rem;
    margin-bottom: 3rem;
}

.form-group {
    flex: 1 1 32rem;
}

.form-group label {
    display: block;
    margin-bottom: 1rem;
}

.form-group input,
.form-group textarea {
    border: var(--primary-color) solid 0.01rem;
    background: var(--white_color);
    padding: 1.5rem 2rem;
    width: 100%;
    font-size: 2rem;
}

.form-group input:focus,
.form-group textarea:focus {
    box-shadow: 0 0 0.5rem 0.2rem var(--secondary_color);
}

.form-group button {
    border: 0.5rem solid var(--primary-color);
    background: none;
    color: var(--primary-color);
    padding: 1.5rem 2rem;
    font-size: 3rem;
    cursor: pointer;
    transition: all 300ms ease-in-out;
}

.form-group button:hover {
    background: var(--primary-color);
    color: var(--white_color);
}

.footer {
    text-align: center;
}

.footer a {
    color: inherit;
    font-size: 1.6rem;
}

.heart {
    color: var(--secondary_color);
}

.footer p {
    margin: 0;
    padding: 3rem;
}

.close-menu {
    display: none;
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--white_color);
    width: 4rem;
    height: 4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    color: var(--primary-color);
    transform: rotate(-90deg);
    border: 0.1rem solid var(--primary-color);
}

@media (max-width: 80rem) {
    .intro-content, .grid-div, .bst-content, .methods-grid .grid-content, .program-code {
        grid-template-columns: 1fr;
    }

    .methods-grid .grid-content {
        justify-content: flex-start;
    }

    .code .main-content .program-name h3 {
        display: none;
    }

    .program-name-mobile {
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
    font-size: 3rem;
    }

    .other .grid-content {
        justify-items: center;
    }

    .other .grid-image {
        width: 36rem;
        height: 36rem;
        transition: all 300ms ease-in-out;
    }

    .menu {
        position: fixed;
        bottom: 0;
        text-align: center;
        align-items: center;
    }

    .menu .menu-content h1 {
        padding-bottom: 3rem;
    }

    .menu .menu-content, .menu .menu-content ul {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .menu-content {
        height: 100%;
    }

    .menu {
        display: none;
    }

    .close-menu-label::after {
        content: '≡';
        position: fixed;
        z-index: 2;
        top: 2rem;
        right: 2rem;
        background: var(--white_color);
        color: var(--primary-color);
        border: 0.1rem solid var(--primary-color);
        border-radius: 50%;
        font-size: 3rem;
        line-height: 3rem;
        width: 3rem;
        height: 3rem;
        text-align: center;
        padding: 0.5rem;
        cursor: pointer;
    }

    .close-menu:checked~.menu {
        display: block;
    }

    .close-menu:checked~.close-menu-label::after {
        content: '×';
    }
}

@media (max-width: 70rem) {
    .methods-content iframe {
        width: 70vw;
        height: 40vw;
    }
}

@media (max-width: 50rem) {
    .other .grid-image {
        width: 70vw;
        height: 70vw;
    }

    h1 {
    font-size: 4rem;
    text-transform: uppercase;
    }

    h2 {
        font-size: 3.5rem;
        text-transform: uppercase;
    }

    h3 {
        font-size: 3rem;
        text-transform: uppercase;
    }

    h4 {
        font-size: 2.5rem;
        text-transform: uppercase;
    }

    h5 {
        font-size: 2rem;
        text-transform: uppercase;
    }

    h6 {
        font-size: 1.5rem;
        text-transform: uppercase;
    }
}