/* ============================= *
 * ## Hamburger CSS animation ##
 *
 * @description Tasty CSS-animated hamburgers
 * @author Jonathan Suh @jonsuh
 * @site https://jonsuh.com/hamburgers
 * @link https://github.com/jonsuh/hamburgers
 *
 * ============================= */


/* ========== *
 * ## Base ##
 * ========== */

.hamburger {
    padding: 15px 15px;
    display: inline-block;
    cursor: pointer;
    font: inherit;
    color: inherit;
    text-transform: none;
    background-color: transparent;
    border: 0;
    margin: 0;
    overflow: visible;

    transition-property: opacity, filter;
    transition-duration: 0.15s;
    transition-timing-function: linear;

    -webkit-transition-property: opacity, filter;
    -webkit-transition-duration: 0.15s;
    -webkit-transition-timing-function: linear;
}

.hamburger.is-active .hamburger-inner,
.hamburger.is-active .hamburger-inner::before,
.hamburger.is-active .hamburger-inner::after {
    background-color: #000;
}

.hamburger-box {
    width: 40px;
    height: 24px;
    display: inline-block;
    position: relative;
}

.hamburger-inner {
    display: block;
    top: 50%;
    margin-top: -2px;
}
  
.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after
{
    width: 40px;
    height: 4px;
    background-color: #000;
    border-radius: 4px;
    position: absolute;

    transition-property: transform;
    transition-duration: 0.15s;
    transition-timing-function: ease;
    
    -webkit-transition-property: -webkit-transform;
    -webkit-transition-duration: 0.15s;
    -webkit-transition-timing-function: ease;
}
.hamburger-inner::before, .hamburger-inner::after {
    content: "";
    display: block;
}

.hamburger-inner::before { top: -10px; }
.hamburger-inner::after { bottom: -10px; }


/* ========================= *
 * ## Collapse transition ##
 * ========================= */

.hamburger--collapse .hamburger-inner
{
    top: auto;
    bottom: 0;

    transition-duration: 0.13s;
    transition-delay: 0.13s;
    transition-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);

    -webkit-transition-duration: 0.13s;
    -webkit-transition-delay: 0.13s;
    -webkit-transition-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
}
.hamburger--collapse .hamburger-inner::after {
    top: -20px;

    transition: top 0.2s 0.2s cubic-bezier(0.33333, 0.66667, 0.66667, 1), opacity 0.1s linear;
    -webkit-transition: top 0.2s 0.2s cubic-bezier(0.33333, 0.66667, 0.66667, 1), opacity 0.1s linear;
}
.hamburger--collapse .hamburger-inner::before {
    transition: top 0.12s 0.2s cubic-bezier(0.33333, 0.66667, 0.66667, 1), transform 0.13s cubic-bezier(0.55, 0.055, 0.675, 0.19);
    -webkit-transition: top 0.12s 0.2s cubic-bezier(0.33333, 0.66667, 0.66667, 1), transform 0.13s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.hamburger--collapse.is-active .hamburger-inner {
    transform: translate3d(0, -10px, 0) rotate(-45deg);
    transition-delay: 0.22s;
    transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);

    -webkit-transform: translate3d(0, -10px, 0) rotate(-45deg);
    -webkit-transition-delay: 0.22s;
    -webkit-transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}
.hamburger--collapse.is-active .hamburger-inner::after {
    top: 0;
    opacity: 0;

    transition: top 0.2s cubic-bezier(0.33333, 0, 0.66667, 0.33333), opacity 0.1s 0.22s linear;
    -webkit-transition: top 0.2s cubic-bezier(0.33333, 0, 0.66667, 0.33333), opacity 0.1s 0.22s linear;
}
.hamburger--collapse.is-active .hamburger-inner::before {
    top: 0;

    transform: rotate(-90deg);
    transition: top 0.1s 0.16s cubic-bezier(0.33333, 0, 0.66667, 0.33333), -webkit-transform 0.13s 0.25s cubic-bezier(0.215, 0.61, 0.355, 1);
    
    -webkit-transform: rotate(-90deg);
    -webkit-transition: top 0.1s 0.16s cubic-bezier(0.33333, 0, 0.66667, 0.33333), -webkit-transform 0.13s 0.25s cubic-bezier(0.215, 0.61, 0.355, 1);
}


/* ========================= *
 * ## Squeeze transition ##
 * ========================= */

.hamburger--squeeze .hamburger-inner {
    transition-duration: 0.075s;
    transition-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);

    -webkit-transition-duration: 0.075s;
    -webkit-transition-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
}
.hamburger--squeeze .hamburger-inner::before {
    transition: top 0.075s 0.12s ease, opacity 0.075s ease;
    -webkit-transition: top 0.075s 0.12s ease, opacity 0.075s ease;
}
.hamburger--squeeze .hamburger-inner::after {
    transition: bottom 0.075s 0.12s ease, transform 0.075s cubic-bezier(0.55, 0.055, 0.675, 0.19);
    -webkit-transition: bottom 0.075s 0.12s ease, -webkit-transform 0.075s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.hamburger--squeeze.is-active .hamburger-inner {
  transform: rotate(45deg);
  transition-delay: 0.12s;
  transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);

  -webkit-transform: rotate(45deg);
  -webkit-transition-delay: 0.12s;
  -webkit-transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}
.hamburger--squeeze.is-active .hamburger-inner::before {
    top: 0;
    opacity: 0;
    
    transition: top 0.075s ease, opacity 0.075s 0.12s ease;
    -webkit-transition: top 0.075s ease, opacity 0.075s 0.12s ease;
}
.hamburger--squeeze.is-active .hamburger-inner::after {
    bottom: 0;

    transform: rotate(-90deg);
    transition: bottom 0.075s ease, transform 0.075s 0.12s cubic-bezier(0.215, 0.61, 0.355, 1);
    
    -webkit-transform: rotate(-90deg);
    -webkit-transition: bottom 0.075s ease, -webkit-transform 0.075s 0.12s cubic-bezier(0.215, 0.61, 0.355, 1);
}