/*
    Didn't use SCSS on this one, but i usually do

    So all the css will be contained in this single file (except for the reset and the mobile)
    But it's pretty straightforward, so it remains readable
*/

:root {
    --clr-primary: rgb(7, 39, 92);
    --clr-secondary: rgb(12, 65, 154);
    
    --clr-light: rgb(248, 249, 250);
    --clr-grey: rgb(108, 117, 125);
    --clr-grey-light: rgb(213, 218, 227);
}

header, footer {
    padding: 1rem;
    z-index: 10;
}

body {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: min-content 1fr min-content;

    height: 100vh;
    height: 100svh;
    
    font-family: 'Arial', 'Google Sans', sans-serif;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

/*********************************
    HEADER
*********************************/

.page-title {
    color: var(--clr-primary);
    /* could use the "font" shorthand, but it's usually more readable this way : */
    font-size: 40px;
    font-weight: 900;
    line-height: 40px;
    text-align: center;
}

#download-files--btn {
    position: fixed;
    right: 0; top: 0;

    border-top: none;
    border-right: none;
    border-radius: 0 0 0 .3rem;
}

#download-files--btn img {
    width: 32px;
    filter: invert(1);
    transition: filter ease-in-out .3s;
}

#download-files--btn:hover img {
    filter: invert(0);
}

/*********************************
    MAIN
*********************************/

main {
    padding: 1rem;

    background-color: var(--clr-light);

    overflow: hidden;
}



#displayed-numbers--wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .5rem;

    height: 100%;
    overflow-y: auto;
}

#displayed-numbers--wrapper li {
    background-color: var(--clr-grey-light);
    border-radius: .25rem;

    letter-spacing: .05rem;

    overflow: hidden;
    content-visibility: auto;
    contain-intrinsic-size: 40px;
}


#displayed-numbers--wrapper li .processed-number,
#displayed-numbers--wrapper li .original-number--visualizer {
    width: 100%;
    padding: .5rem;
    
    text-align: center;
}

#displayed-numbers--wrapper li .processed-number {
    position: relative;
    top: 0;
    transition: top ease-in-out .3s;
}


/* Visualizer */

#displayed-numbers--wrapper li .original-number--visualizer {
    position: absolute;
    left: 0; top: 100%;

    background-color: rgb(12 65 154 / 25%);

    transition: top ease-in-out .3s;
}

#displayed-numbers--wrapper li .original-number--visualizer-helper {
    height: 100%;
    margin-left: auto;

    flex-shrink: 0;

    color: var(--clr-light);
    background-color: var(--clr-secondary);

    aspect-ratio: 1 / 1;
    z-index: 1;
}

/* Hide original-number-vizualizer's helper when the original number is displayed */
#displayed-numbers--wrapper li:not(:has(.original-number--visualizer)) .original-number--visualizer-helper {
    opacity: 0;
    pointer-events: none;
}


/*
    Handle original-number-visualizer's behaviour :
        - with hover when possible
        - with .active (from click event) if hover is disabled on the user's device
*/
@media screen and (hover: hover) {
    #displayed-numbers--wrapper li:has(.original-number--visualizer) {
        cursor: help;
    }
    
    #displayed-numbers--wrapper li:has(.original-number--visualizer):hover .processed-number {
        top: -100%;
    }
}

@media screen and (hover: none) {
    #displayed-numbers--wrapper li.active .processed-number {
        top: -100%;
    }
}


/*********************************
    FOOTER
*********************************/

footer {
    display: flex;
    justify-content: center;
}

#mobile-settings--toggle-btn {
    display: none;
}

/* Settings */

.settings--wrapper {
    display: flex;
    gap: 1rem;
}

.settings--wrapper .settings-inputs--outerWrapper {
    padding: .5rem;

    border: 1px solid color-mix(in srgb, var(--clr-primary) 50%, transparent);
    border-radius: .5rem;
}

.settings-inputs--outerWrapper .label {
    color: var(--clr-grey);
    font-size: 14px;
}

.settings-inputs--wrapper {
    width: 100%;
    
    display: flex;
    align-items: center;
    gap: .5rem;
}


#displayed-numbers-count--slider {
    flex-grow: 1;
}
#displayed-numbers-count--input {
    width: 63px;
}


input[type="number"] {
    appearance: none;
    padding: 0 0 0 5px;

    color: var(--clr-light);

    background-color: var(--clr-primary);
    border: 1px solid transparent;
    border-radius: .3rem;
    outline: none;
}


/* Buttons */

.btn {
    padding: .5rem;
    
    color: var(--clr-light);
    background-color: var(--clr-primary);
    border: 2px solid transparent;
    border-radius: .3rem;

    transition: 
        color ease-in-out .3s,
        background-color ease-in-out .3s,
        border ease-in-out .3s;
}

@media (hover: hover) {
    .btn:hover {
        color: var(--clr-primary);
        background-color: var(--clr-light);
        border: 2px solid var(--clr-primary);
    }
}