/*------------------------------------*\
    MATERIAL PHOTO GALLERY
\*------------------------------------*/
.m-p-g {
    max-width: 100%;
    margin: 0 auto;
}

.m-p-g__thumbs-img {
    margin: 0;
    float: left;
    vertical-align: bottom;
    cursor: pointer;
    z-index: 1;
    position: relative;
    opacity: 0;
    filter: brightness(100%);
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    will-change: opacity, transform;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.m-p-g__thumbs-img.active {
    z-index: 50;
}

.m-p-g__thumbs-img.layout-completed {
    opacity: 1;
}

.m-p-g__thumbs-img.hide {
    opacity: 0;
}

.m-p-g__thumbs-img:hover {
    filter: brightness(110%);
}

.m-p-g__fullscreen {
    position: fixed;
    z-index: 10;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0);
    visibility: hidden;
    transition: background 0.25s ease-out, visibility 0.01s 0.5s linear;
    will-change: background, visibility;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.m-p-g__fullscreen.active {
    transition: background 0.25s ease-out, visibility 0.01s 0s linear;
    visibility: visible;
    background: rgba(0, 0, 0, 0.95);
}

.m-p-g__fullscreen-img {
    pointer-events: none;
    position: absolute;
    transform-origin: left top;
    top: 55%;
    left: 50%;
    max-height: 100vh;
    max-width: 100%;
    visibility: hidden;
    will-change: visibility;
    transition: opacity 0.5s ease-out;
}

.m-p-g__fullscreen-img.active {
    visibility: visible;
    opacity: 1 !important;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.5s ease-out;
}

.m-p-g__fullscreen-img.almost-active {
    opacity: 0;
    transform: translate3d(0, 0, 0) !important;
}

.m-p-g__controls {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 200;
    height: 20vh;
    background: linear-gradient(to top, transparent 0%, rgba(0, 0, 0, 0.55) 100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.m-p-g__controls.active {
    opacity: 1;
    visibility: visible;
}

.m-p-g__controls-close,
.m-p-g__controls-arrow {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border: none;
    background: none;
}

.m-p-g__controls-close:focus,
.m-p-g__controls-arrow:focus {
    outline: none;
}

.m-p-g__controls-arrow {
    position: absolute;
    z-index: 1;
    top: 0;
    width: 20%;
    height: 100vh;
    display: flex;
    align-items: center;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    opacity: 0;
}

.m-p-g__controls-arrow:hover {
    opacity: 1;
}

.m-p-g__controls-arrow--prev {
    left: 0;
    padding-left: 3vw;
    justify-content: flex-start;
}

.m-p-g__controls-arrow--next {
    right: 0;
    padding-right: 3vw;
    justify-content: flex-end;
}

.m-p-g__controls-close {
    position: absolute;
    top: 10vh;
    left: 3vw;
    z-index: 5;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

.m-p-g__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
    transition: all 0.25s ease-out;
}

.m-p-g__btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.m-p-g__alertBox {
    position: fixed;
    z-index: 999;
    max-width: 700px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 25px;
    border-radius: 3px;
    text-align: center;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.23), 0 10px 40px rgba(0, 0, 0, 0.19);
    color: grey;
}

.m-p-g__alertBox h2 {
    color: red;
}

/* DEMO */
body {
    /* background: #fefefe;
    color: white;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-align: center;
    font-family: "Roboto Mono"; */
}

h2 {
    font-weight: 300;
    margin: 4vh 4vw;
    letter-spacing: 3px;
    color: grey;
    text-transform: uppercase;
}

.demo-btn {
    display: inline-block;
    margin: 0 2.5px 4vh 2.5px;
    text-decoration: none;
    color: grey;
    padding: 15px;
    line-height: 1;
    min-width: 140px;
    background: rgba(0, 0, 0, 0.07);
    border-radius: 6px;
}

.demo-btn:hover {
    background: rgba(0, 0, 0, 0.12);
}

@media (max-width: 640px) {
    .demo-btn {
        min-width: 0;
        font-size: 14px;
    }
}