/* ==========================================================================
   MENU BUTTON
   ========================================================================== */

.menu-button {
    --mb-bar-width: 30px;
    --mb-bar-height: 2px;
    --mb-bar-spacing: 7px;
    --mb-animation-function: ease;
    --mb-animation-duration: 0.25s;
    --mb-animation-delay: 0s;

    display: inline-flex;
    align-items: center;
    gap: 0.75em;
    padding: 0;
    margin: 0;

    font-size: inherit;
    color: inherit;

    border: unset;
    background: none;
    cursor: pointer;
}

.menu-button .bars {
    position: relative;
    display: block;
    width: var(--mb-bar-width);
    height: calc(var(--mb-bar-height) * 3 + var(--mb-bar-spacing) * 2);
}

.menu-button .bar {
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    height: var(--mb-bar-height);
    border-radius: calc(var(--mb-bar-height) / 2);
    background: currentColor;
    color: inherit;
    opacity: 1;
    transition: none var(--mb-animation-duration) var(--mb-animation-function) var(--mb-animation-delay);
}

.menu-button .bar--top {
    bottom: calc(50% + var(--mb-bar-spacing) + var(--mb-bar-height) / 2);
    transition-property: bottom, transform;
}

.menu-button .bar--middle {
    top: calc(50% - var(--mb-bar-height) / 2);
    transition-property: opacity;
}

.menu-button .bar--bottom {
    top: calc(50% + var(--mb-bar-spacing) + var(--mb-bar-height) / 2);
    transition-property: top, transform;
}

.menu-button .is-cross .bar--top {
    bottom: calc(50% - var(--mb-bar-height) / 2);
    transform: rotate(45deg);
}

.menu-button .is-cross .bar--middle {
    opacity: 0;
}

.menu-button .is-cross .bar--bottom {
    top: calc(50% - var(--mb-bar-height) / 2);
    transform: rotate(-45deg);
}

/* 
   COMPRESS
*/

.menu-button.fx-compress .bar--top {
    transition-property: bottom, margin, transform;
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration)),
        var(--mb-animation-delay), var(--mb-animation-delay);
}

.menu-button.fx-compress .bar--middle {
    transition-property: top, opacity;
    transition-duration: var(--mb-animation-duration), 0s;
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 1.3),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 1.3);
}

.menu-button.fx-compress .bar--bottom {
    transition-delay: var(--mb-animation-delay);
}

.menu-button.fx-compress .is-cross .bar--top {
    bottom: calc(50% - var(--mb-bar-spacing) - var(--mb-bar-height));
    margin-bottom: calc(var(--mb-bar-spacing) + var(--mb-bar-height) / 2);
    transform: rotate(45deg);
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 0.3),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 1.3),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 1.3);
}

.menu-button.fx-compress .is-cross .bar--middle {
    top: calc(50% + var(--mb-bar-spacing));
    opacity: 0;
    transition-duration: var(--mb-animation-duration), 0s;
    transition-delay: var(--mb-animation-delay),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration));
}

.menu-button.fx-compress .is-cross .bar--bottom {
    top: calc(50% - var(--mb-bar-height) / 2);
    transform: rotate(-45deg);
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 1.3),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 1.3);
}

/* 
   SPIN
*/

.menu-button.fx-spin .bar--top {
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration)),
        var(--mb-animation-delay);
}

.menu-button.fx-spin .bar--middle {
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration));
}

.menu-button.fx-spin .bar--bottom {
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration)),
        var(--mb-animation-delay);
}

.menu-button.fx-spin .is-cross .bar--top {
    transform: rotate(135deg);
    transition-delay: var(--mb-animation-delay),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration));
}

.menu-button.fx-spin .is-cross .bar--middle {
    transition-duration: 0s;
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration));
}

.menu-button.fx-spin .is-cross .bar--bottom {
    transform: rotate(225deg);
    transition-delay: var(--mb-animation-delay),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration));
}

/* 
   SQUEEZE
*/

.menu-button.fx-squeeze .bar--top {
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 0.4),
        var(--mb-animation-delay);
}

.menu-button.fx-squeeze .bar--middle {
    transition-delay: calc(var(--mb-animation-delay) + 0.1s);
}

.menu-button.fx-squeeze .bar--bottom {
    transition-delay: calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 0.4),
        var(--mb-animation-delay);
}

.menu-button.fx-squeeze .is-cross .bar--top {
    transition-delay: var(--mb-animation-delay),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 0.4);
}

.menu-button.fx-squeeze .is-cross .bar--middle {
    transition-delay: var(--mb-animation-delay);
}

.menu-button.fx-squeeze .is-cross .bar--bottom {
    transition-delay: var(--mb-animation-delay),
        calc(var(--mb-animation-delay) + var(--mb-animation-duration) * 0.4);
}

/* ==========================================================================
   SITE BUTTON
   ========================================================================== */


.feature-button {
    background-color: #1b998b;
    padding-block: 0.75rem;
    padding-inline: 1rem;
    transition: 150ms;
    position: relative;
    overflow: hidden;
    z-index: 1;
    color: white;
}

.feature-button:before {
    content: "";
    position: absolute;
    z-index: -1;
    background: white;
    height: 150px;
    width: 200px;
    border-radius: 50%;
    top: 100%;
    left: 100%;
    transition: all 0.7s;
}

.feature-button:active {
    background: white;
    color: #334f6f;

}

.feature-button:hover {
    color: #334f6f;
}

.feature-button:hover:before {
    top: -30px;
    left: -30px;
}

.desktop-nav .feature-button {
    margin-left: 1.5rem;
}

.mobile-nav .feature-button {
    width: 100%;
    text-align: center;
    margin-top: 1.5rem;
}

.mobile-nav .feature-button:before {
    height: 250px;
    width: 600px;
}

.mobile-nav .feature-button:hover:before {
    top: -60px;
    left: -80px;
}


/* ==========================================================================
   NAV HOVER EFFECT
   ========================================================================== */

.mobile-nav li, .desktop-nav li, footer li {
    position: relative;
}

.mobile-nav li a, .desktop-nav li a, footer li a {
    display: inline-block;
    position: relative
}

.mobile-nav li a::after, .desktop-nav li a::after, footer li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    /* space below text */
    width: 100%;
    height: 1px;
    background-color: #fff;
    /* underline color */
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

/* hover effect */
.mobile-nav li a:hover::after, .desktop-nav li a:hover::after, footer li a:hover::after {
    transform: scaleX(1);
}