/* Floating Circle Navigation
   Based on: https://codepen.io/dannievinther/pen/JrdPoM
   Adapted for Yummy Wakame - reusable across subdomains
   ======================================================= */

/* =======
   IMPORTS
   ======= */
@import url('https://fonts.googleapis.com/css?family=Encode+Sans+Condensed:400,600');

/* =========
   VARIABLES
   ========= */
:root {
    --cnav-offset-value: 30;
    --cnav-btn-size: 60;
    --cnav-accent: #4eb5ef;
}

/* =====================
   NAVIGATION BACKGROUND
   ===================== */
#nav-bg {
    transform-origin: center center;
    transition: transform .3s;
    transform: translate(var(--translate-x), var(--translate-y)) scale(var(--scale));
    will-change: transform;
    pointer-events: none;
    background: #d5eef7;
}

/* ======
   BUTTON
   ====== */
.btn {
    position: fixed;
    height: calc(var(--cnav-btn-size)*1px);
    width: calc(var(--cnav-btn-size)*1px);
    bottom: calc((var(--cnav-offset-value))*1px);
    left: calc(var(--cnav-offset-value)*1px);
    border-radius: 50%;
    background: #fafafa;
    cursor: pointer;
    margin: 0;
    padding: 0 15px;
    border: none;
    z-index: 100;
    user-select: none;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
}

#toggle-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--cnav-accent);
    transition: transform .3s;
}

#toggle-btn span {
    position: relative;
    width: 100%;
}

#toggle-btn span {
    margin-top: -4px;
}

#toggle-btn span + span {
    margin-top: 8px;
}

#toggle-btn span:before,
#toggle-btn span:after {
    content: '';
    position: absolute;
    top: 0;
    background: currentColor;
    opacity: .8;
    height: 100%;
    width: 50%;
    height: 4px;
    transition: .25s cubic-bezier(.6,0,.3,1);
    transform-origin: center center;
}

#toggle-btn span:before {
    left: 0;
    border-radius: 3px 0 0 3px;
}

#toggle-btn span:after {
    right: 0;
    border-radius: 0 3px 3px 0;
}

/* Hamburger to X animation */
#toggle-btn.shown span:nth-of-type(1):before {
    transform: translate3d(3px, 3.5px, 0) rotate(45deg);
}

#toggle-btn.shown span:nth-of-type(1):after {
    transform: translate3d(-3px, 3.5px, 0) rotate(-45deg);
}

#toggle-btn.shown span:nth-of-type(3):before {
    transform: translate3d(3px, -3.5px, 0) rotate(-45deg);
}

#toggle-btn.shown span:nth-of-type(3):after {
    transform: translate3d(-3px, -3.5px, 0) rotate(45deg);
}

#toggle-btn.shown span:nth-of-type(2):before,
#toggle-btn.shown span:nth-of-type(2):after {
    opacity: 0.0001;
}

#toggle-btn.shown span:nth-of-type(2):before {
    transform: translateX(-200%);
}

#toggle-btn.shown span:nth-of-type(2):after {
    transform: translateX(200%);
}

#toggle-btn.shown:before {
    transform: scale(.6);
    transition: .2s;
}

/* Button shadow */
#toggle-btn:before {
    content: '';
    transition: .2s .2s;
    position: absolute;
    top: 3px;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.1);
    border-radius: inherit;
    filter: blur(5px);
    z-index: -2;
}

#toggle-btn:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: #fafafa;
    z-index: -1;
}

/* ==========
   NAVIGATION
   ========== */
#circle-nav {
    width: 100%;
    height: 100%;
    background: transparent;
    position: fixed;
    top: 0;
    left: 0;
    overflow: hidden;
    display: flex;
    z-index: 200;
    pointer-events: none;
}

#circle-nav ul {
    margin: auto;
    pointer-events: none; /* Disabled by default to prevent blocking page interactions */
    text-align: center;
    padding: 0;
    list-style: none;
}

/* Enable pointer events only when menu is shown */
#toggle-btn.shown ~ #circle-nav ul {
    pointer-events: auto;
}

#circle-nav li {
    font-family: 'Encode Sans Condensed', sans-serif;
    font-weight: 600;
    font-size: 30px;
    color: #212121;
    user-select: none;
    transform: translate(-20px,20px) scale(.9);
    transition: 0s;
    opacity: 0.0001;
    visibility: hidden;
    will-change: transform;
}

#circle-nav li + li {
    margin-top: 30px;
}

/* Menu open state */
#toggle-btn.shown ~ #circle-nav li {
    transform: none;
    opacity: 1;
    visibility: visible;
    transition: .35s cubic-bezier(.4,2.08,.55,1);
}

#toggle-btn.shown ~ #circle-nav li:nth-child(1) {
    transition-delay: .15s;
}

#toggle-btn.shown ~ #circle-nav li:nth-child(2) {
    transition-delay: .125s;
}

#toggle-btn.shown ~ #circle-nav li:nth-child(3) {
    transition-delay: .1s;
}

#toggle-btn.shown ~ #circle-nav li:nth-child(4) {
    transition-delay: .075s;
}

#toggle-btn.shown ~ #circle-nav li:nth-child(5) {
    transition-delay: .05s;
}

#toggle-btn.shown ~ #circle-nav li:nth-child(6) {
    transition-delay: .025s;
}

#toggle-btn.shown ~ #circle-nav li:nth-child(7) {
    transition-delay: 0s;
}

/* ============
   LINK EFFECT
   ============ */
#circle-nav .link {
    position: relative;
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    text-decoration: none;
    color: currentColor;
    transition: .2s ease-in-out;
}

#circle-nav .link:before,
#circle-nav .link:after {
    position: absolute;
    content: '';
    height: 3px;
    width: 50%;
    background: var(--cnav-accent);
    top: calc(50% + 2px);
    transition: transform .3s cubic-bezier(.5,.5,0,1);
}

#circle-nav .link:before {
    left: 0;
    transform: translateX(calc(-100% - 10px)) scaleX(0);
    transform-origin: left;
}

#circle-nav .link:after {
    right: 0;
    transform: translateX(calc(100% + 10px)) scaleX(0);
    transform-origin: right;
}

#circle-nav .link:hover:before {
    transform: translateX(calc(-100% - 10px)) scaleX(1);
    transform-origin: right;
}

#circle-nav .link:hover:after {
    transform: translateX(calc(100% + 10px)) scaleX(1);
    transform-origin: left;
}