/*********************************************************************
 * Styling of the "Search engine clone" page
 * 
 * @author (Anyanwu Benedict Chuwkwuemeka)
 * @version 0.01
*********************************************************************/

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--bcg-handle) var(--bcg-trpnt);
}

html:root
{
    --bcg-base: #c5deef;
    --bcg-btn: #3d6cbd;
    --bcg-dark: #000000;
    --bcg-handle: #8ab4c9;
    --bcg-shade: #000000c3;
    --bcg-trpnt: #00000000;
    --bcg-white: #eaf9ff;
    --font-clr: #346fad;
    --font-shadow: #304a5e25;
    --transition-flow: 250ms;
    --transition-delay: 150ms;
    --nav_item_max_w: 43.75rem;
    --nav_item_pd: 1rem;
    --search_bar_h: 2.5rem;
    --search_bdr_rad: var(--search_bar_h);
    --search_icon_size: 2.5rem;
    --ctg_item_w: 9.375rem;
}

html
{
    background-color: var(--bcg-base);
    -moz-user-select: -moz-none;
    -moz-user-select: none;
    -webkit-user-select: none;
    user-select: none;
    scroll-behavior: smooth;
}

body
{
    font-family: 'Poppins', sans-serif;
    min-height: 100svh;
    min-height: 100vh;
    display: grid;
    place-items: center;
    background-color: var(--bcg-base);
}

@supports(-webkit-tap-highlight-color: var(--bcg-trpnt))
{
    body
    {
        -webkit-tap-highlight-color: var(--bcg-trpnt);
    }
}

button, input
{
    font-family: 'Poppins', sans-serif;
    background-color: var(--bcg-trpnt);
    outline: none;
    border: none;
}

button:active, 
label:active
{
    scale: 0.975;
}


.wrapper
{
    width: 100%;
    display: flex;
    flex-direction: column;
    padding: 2.5rem 1rem;
    transform: translateY(-50%);
}

.wrapper .greetings
{
    width: 100%;
    margin-bottom: 1rem;
}

.greetings .mjr
{
    width: 100%;
    text-align: center;
    font-size: 2.5rem;
    color: var(--font-clr);
}

.nav
{
    position: sticky;
    top: 1rem;
    width: 100%;
    display: grid;
    place-items: center;
    z-index: 10;
}

.nav:has(.filter_tgl_cls:checked)
{
    --search_bdr_rad: calc((var(--search_bar_h) * 0.70));
}

.wrapper .search_bdr
{
    position: relative;
    width: 100%;
    max-width: var(--nav_item_max_w);
    height: fit-content;
    display: flex;
    flex-direction: row;
    align-items: center;
    margin: 0 auto;
    padding: 0.5rem 0.625rem;
    border-radius: var(--search_bdr_rad);
    box-shadow: 0 0 0.625rem 0.25rem var(--font-shadow);
    background-color: var(--bcg-white);
    transition: all var(--transition-flow) var(--transition-delay) ease-in-out;
    z-index: 3;
}

.nav:has(.filter_tgl_cls:checked) .search_bdr
{
    border-bottom-left-radius: 0rem;
    border-bottom-right-radius: 0rem;
    transition: all var(--transition-flow) ease-in-out;
}

.search_bdr .search_box
{
    width: calc((100% - (var(--search_icon_size) * 2)));
    height: 100%;
    height: var(--search_bar_h);
}

.search_box .search_fld_cls
{
    width: 100%;
    height: 100%;
    padding-left: 0.25rem;
    padding-right: var(--search_icon_size);
    color: var(--font-clr);
    font-size: 1rem;
}

.search_icon_bdr
{
    width: var(--search_icon_size);
    height: var(--search_icon_size);
    display: grid;
    place-items: center;
    border-radius: 50%;
    transition: all var(--transition-flow) ease-in-out;
    cursor: pointer;
}

.search_icon_bdr:hover,
.search_icon_bdr:active
{
    background-color: var(--font-shadow);
}

.search_icon_bdr .search_icon_box
{
    width: 60%;
    height: 60%;
}

.search_icon_box .search_icon_svg
{
    width: 100%;
    height: 100%;
    fill: var(--bcg-btn);
}

.search_clr_btn
{
    position: absolute;
    right: calc((var(--search_icon_size)) * 1.25);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 3;
}

.search_clr_btn.active
{
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.nav .filter_base
{
    position: absolute;
    top: 100%;
    width: 100%;
    max-width: var(--nav_item_max_w);
    display: grid;
    grid-template-rows: 0fr;
    margin: 0 auto;
    transition: grid-template-rows var(--transition-flow) ease-in-out;
    z-index: 2;
}

.nav:has(.filter_tgl_cls:checked) .filter_base
{
    grid-template-rows: 1fr;
    transition: grid-template-rows var(--transition-flow) var(--transition-delay) ease-in-out;
}

.filter_base .filter_bcg
{
    width: 100%;
    border-bottom-left-radius: var(--search_bdr_rad);
    border-bottom-right-radius: var(--search_bdr_rad);
    overflow: hidden;
}

.filter_bcg .filter_bdr
{
    width: 100%;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    border-bottom-left-radius: var(--search_bdr_rad);
    border-bottom-right-radius: var(--search_bdr_rad);
    background-color: var(--bcg-white);
    transition: all var(--transition-flow) ease-in-out;
}

.filter_title
{
    color: var(--font-clr);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.filter_bdr .filter_box
{
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.125rem 0.3125rem;
}

.filter_box:not(:last-child)
{
    margin-bottom: 0.875rem;
}

.filter_box .filter_item
{
    width: -moz-fit-content;
    width: fit-content;
    height: -moz-fit-content;
    height: fit-content;
    padding: 0.25rem;
    border-radius: 0.3125rem;
    border: 0.125rem solid var(--bcg-btn);
    transition: all var(--transition-flow) ease-in-out;
    cursor: pointer;
}

.filter_item:hover,
.filter_item.selected
{
    background-color: var(--bcg-btn);
}

.filter_item .filter_txt
{
    color: var(--font-clr);
    font-size: 0.875rem;
    transition: all var(--transition-flow) ease-in-out;
}

.filter_item:hover .filter_txt,
.filter_item.selected .filter_txt
{
    color: var(--bcg-white);
}

.filter_tgl_cls
{
    position: fixed;
    top: -1000%;
    left: -1000%;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}