/*
!!! This demo is being refactored !!!

-- add auto focus on the first item of the navigation when it is shown
-- replace .menu:not(.menu_activated) .menu__list{  display: none; } to hidden
-- use :is pseudo-class to simplify selectors 

*/
/*
=====
DEPENDENCES
=====
*/

/* The component will reset button browser styles */

.r-button {
    --uirButtonBackgroundColor: var(--rButtonBackgroundColor, transparent);
    --uirButtonPadding: var(--rButtonPadding, var(--rButtonPaddingTop, 0) var(--rButtonPaddingRight, 0) var(--rButtonPaddingBottom, 0) var(--rButtonPaddingLeft, 0));
    --uirButtonBorderWidth: var(--rButtonBorderWidth, 0);
    --uirButtonBorderStyle: var(--rButtonBorderStyle, solid);
    --uirButtonBorderColor: var(--rButtonBorderColor, currentColor);
    --uirButtonFontFamily: var(--rButtonFontFamily, inherit);
    --uirButtonFontSize: var(--rButtonFontSize, inherit);
    --uirButtonColor: var(--rButtonColor);
    background-color: var(--uirButtonBackgroundColor);
    padding: var(--uirButtonPadding);
    border-width: var(--uirButtonBorderWidth);
    border-style: var(--uirButtonBorderStyle);
    border-color: var(--uirButtonBorderColor);
    cursor: pointer;
    font-family: var(--uirButtonFontFamily);
    font-size: var(--uirButtonFontSize);
}

    .r-button::-moz-focus-inner,
    .r-button[type="button"]::-moz-focus-inner,
    .r-button[type="reset"]::-moz-focus-inner,
    .r-button[type="submit"]::-moz-focus-inner {
        /* Remove the inner border and padding in Firefox. */

        border-style: none;
        padding: 0;
    }

/* The component will reset browser's styles of link */

.r-link {
    --uirLinkDisplay: var(--rLinkDisplay, inline-flex);
    --uirLinkTextColor: var(--rLinkTextColor);
    --uirLinkTextDecoration: var(--rLinkTextDecoration, none);
    display: var(--uirLinkDisplay) !important;
    color: var(--uirLinkTextColor) !important;
    text-decoration: var(--uirLinkTextDecoration) !important;
}

/* The component will reset browser's styles of list */

.r-list {
    --uirListPaddingLeft: var(--rListPaddingLeft, 0);
    --uirListMarginTop: var(--rListMarginTop, 0);
    --uirListMarginBottom: var(--rListMarginBottom, 0);
    --uirListListStyle: var(--rListListStyle, none);
    padding-left: var(--uirListPaddingLeft) !important;
    margin-top: var(--uirListMarginTop) !important;
    margin-bottom: var(--uirListMarginBottom) !important;
    list-style: var(--uirListListStyle) !important;
}

/* Basic styles of the hamburger component */

.m-hamburger {
    --uiHamburgerThickness: var(--hamburgerThickness, 4px);
    display: var(--hamburgerDisplay, inline-flex);
    width: var(--hamburgerWidth, 28px);
    height: var(--hamburgerHeight, 20px);
    position: relative;
}

    .m-hamburger::before,
    .m-hamburger::after,
    .m-hamburger__label {
        width: 100%;
        height: var(--uiHamburgerThickness);
        border-radius: var(--hamburgerBorderRadius, 5px);
        background-color: var(--hamburgerBackgroundColor, currentColor);
        position: absolute;
        left: 0;
    }

    .m-hamburger::before,
    .m-hamburger::after {
        content: "";
    }

    .m-hamburger::before {
        top: 0;
    }

    .m-hamburger::after {
        bottom: 0;
    }

.m-hamburger__label {
    /* The calculation of middle hamburger button line position */

    top: calc(50% - calc(var(--uiHamburgerThickness) / 2));
}

/* helper to hide elements that are available only for screen readers. */

.screen-reader {
    width: var(--screenReaderWidth, 1px) !important;
    height: var(--screenReaderHeight, 1px) !important;
    padding: var(--screenReaderPadding, 0) !important;
    border: var(--screenReaderBorder, none) !important;
    position: var(--screenReaderPosition, absolute) !important;
    clip: var(--screenReaderClip, rect(1px, 1px, 1px, 1px)) !important;
    overflow: var(--screenReaderOverflow, hidden) !important;
}

/*
=====
MENU STYLES
=====
*/

.menu {
    --uiMenuCircleSize: var(--menuCircleSize, 6.25rem);
    --uiMenuCircleOffset: var(--menuCircleOffset, 1rem);
    --uiMenuCircleHeight: calc(var(--uiMenuCircleSize) / 2);
    --uiMenuCircleBackgroundColor: var(--menuCircleBackgroundColor, currentColor);
    --uiMenuHamburgerWidth: var(--menuHamburgerWidth, 1.75rem);
    --uiMenuHamburgerHeight: var(--menuHamburgerHeight, 1.25rem);
    --rButtonPaddingTop: calc(var(--uiMenuCircleHeight) - var(--uiMenuHamburgerHeight) - var(--uiMenuCircleOffset));
    --hamburgerWidth: var(--uiMenuHamburgerWidth);
    --hamburgerHeight: var(--uiMenuHamburgerHeight);
    --hamburgerBackgroundColor: var(--menuHamburgerBackgroundColor, #fff);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: var(--menuZindex, 9998);
}

.menu__nav {
    box-sizing: border-box;
    width: 100%;
    height: 0;
    transition: opacity .2s ease-out;
    opacity: 0;
    display: flex;
    align-items: flex-end;
    position: relative;
    z-index: 2;
}

.menu__list {
    width: 100%;
    max-height: 100%;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 100px;
}

.menu__toggle {
    box-sizing: border-box;
    width: var(--uiMenuCircleSize);
    height: var(--uiMenuCircleHeight);
    flex: none;
    position: relative;
}

    .menu__toggle::before {
        /*
  1. The font-size property is used to simplify calculations of the element's sizes and position
  2. The negative value for the bottom property need for hiding half of circle. 
  */

        content: "";
        width: 1em;
        height: 1em;
        font-size: var(--uiMenuCircleSize); /* 1 */

        background-color: var(--uiMenuCircleBackgroundColor);
        border-radius: 50%;
        position: absolute;
        bottom: -.5em; /* 2 */
        left: calc(50% - .5em);
        z-index: -1;
        will-change: width, height;
        transition: transform .25s cubic-bezier(0.04, -0.1, 0.29, 0.98), width .25s cubic-bezier(0.04, -0.1, 0.29, 0.98), height .25s cubic-bezier(0.04, -0.1, 0.29, 0.98);
    }

/* styles of hamburger's animation */

.m-hamburger::before,
.m-hamburger::after,
.m-hamburger__label {
    transition-timing-function: ease;
    transition-duration: .15s;
}

.m-hamburger::before,
.m-hamburger::after {
    transition-property: transform;
}

.m-hamburger__label {
    transition-property: transform, opacity;
}

/*
=====
MENU STATES
=====
*/

.menu__toggle:focus {
    outline: var(--menuHaburgerOutlineOWidth, 2px) solid var(--menuHaburgerOutlineColor);
    outline-offset: var(--menuHaburgerOutlineOffset, 5px);
}

.menu_activated {
    height: 100%;
}

    .menu_activated .menu__nav {
        flex-grow: 1;
        opacity: 1;
        will-change: opacity;
        transition-duration: .2s;
        transition-delay: .3s;
    }

    .menu_activated .menu__toggle::before {
        width: 100vmax;
        height: 100vmax;
        transform: translate3d(-50vh, -50vh, 0) scale(5);
        transition-duration: 1s;
    }

.menu:not(.menu_activated) .menu__list {
    display: none;
}

.menu_activated .m-hamburger::before {
    top: 50%;
    transform: translate3d(0, -50%, 0) rotate(45deg);
}

.menu_activated .m-hamburger::after {
    transform: translate3d(0, -50%, 0) rotate(135deg);
    top: 50%;
}

.menu_activated .m-hamburger__label {
    transform: rotate(-45deg) translate3d(-.285em,-.3em, 0);
    opacity: 0;
}

/*
=====
SETTINGS
=====
*/

:root {
    --colorWhite: #fff;
    --colorMain: #d55e16;
    --menuCircleBackgroundColor: var(--colorMain);
    --menuHamburgerBackgroundColor: var(--colorWhite);
    --menuHaburgerOutlineColor: var(--colorMain);
}

.menu_activated {
    --menuHaburgerOutlineColor: var(--colorWhite);
}

/*
=====
DEMO
=====
*/

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Open Sans, Ubuntu, Fira Sans, Helvetica Neue, sans-serif;
    font-size: 1rem;
}

.page {
    max-width: 380px;
    padding: 1rem;
    margin: auto;
    text-align: center;
}

.page__name {
    display: block;
    font-size: 2rem;
    font-weight: 700;
}

.page__hint {
    display: block;
    line-height: 1.45;
    margin-top: 1rem;
}

.menu__group {
    --rLinkTextColor: var(--colorWhite);
    padding: .5rem 2rem;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
}

.linktr {
    order: -1;
    padding: 1.75rem;
    text-align: center;
}

.linktr__goal {
    background-color: rgb(209, 246, 255);
    color: rgb(8, 49, 112);
    box-shadow: rgb(8 49 112 / 24%) 0px 2px 8px 0px;
    border-radius: 2rem;
    padding: .5rem 1.25rem;
}

.logoPhoneMenu {
    width: 80px;
    opacity: .2;
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%)
}


@media (min-width: 1024px) {
    .linktr {
        position: absolute;
        right: 1rem;
        bottom: 1rem;
    }
}


@media only screen and (min-width: 601px) {

    /*for phone*/
    .menu {
        display: none;
    }

}