<div id="app" class="wrapper" v-cloak v-bind:class="{'is-previous': isPreviousSlide, 'first-load': isFirstLoad}">
            <div class="slide-wrapper" 
                 v-for="(slide, index) in slides" 
                 v-bind:class="{ active: index === currentSlide }"
                 v-bind:style="{ 'z-index': (slides.length - index), 'background-image': 'url(' + slide.bgImg + ')' }">
                <div class="slide-inner">
                    <div class="slide-bg-text">
                        <p>{{ slide.headlineFirstLine }}</p>
                        <p>{{ slide.headlineSecondLine }}</p>
                    </div>
                    <div class="slide-rect-filter">
                        <div class="slide-rect" v-bind:style="{'border-image-source': 'url(' + slide.rectImg + ')'}"></div>
                    </div>
                    <div class="slide-content">
                        <h1 class="slide-content-text"><p>{{ slide.headlineFirstLine }}</p><p>{{ slide.headlineSecondLine }}</p></h1><a class="slide-content-cta">Call To Action</a></div>
                    <h2 class="slide-side-text"><span>{{ slide.sublineFirstLine }} / </span><span>{{ slide.sublineSecondLine }}</span></h2></div>
            </div>
        <div class="controls-container">
            <button class="controls-button" 
                    v-for="(slide, index) in slides"
                    v-bind:class="{ active: index === currentSlide }"
                    v-on:click="updateSlide(index)">{{ slide.headlineFirstLine }} {{ slide.headlineSecondLine }}</button>
        </div>
        <div class="pagination-container">
            <span class="pagination-item"
                  v-for="(slide, index) in slides"
                  v-bind:class="{ active: index === currentSlide }"
                  v-on:click="updateSlide(index)"></span>
        </div>
    </div>

html {
    box-sizing: border-box;
}

*,
*:before,
*:after {
    box-sizing: inherit;
}

@mixin media($breakpoint) {
    @media (max-width: $breakpoint) {
        @content;
    }
}

@mixin media-min($breakpoint) {
    @media (min-width: $breakpoint) {
        @content;
    }
}

@mixin media-height($breakpoint) {
    @media (max-height: $breakpoint) {
        @content;
    }
}

// ------------- VARIABLES ------------- //
$whitespace-height: 50px;
$left-offset: 13vw;
$rect-width: 48vh;
$rect-height: 62vh;
$rect-border-width: 5vh;
$control-btn-padding: 1.6rem;
$control-active-btn-offset: .3rem;
$left-offset-small: 9vw;
$rect-height-small: 20vw;
$rect-width-small: 16vw;
$rect-border-width-small: 5vh;
// ------------- GENERAL ------------- //
%callout {
    font-family: 'Montserrat';
    text-transform: uppercase;
    color: #fff;
    letter-spacing: .12rem;
    font-size: .7rem;
    line-height: 1;
}

[v-cloak] {
    opacity: 0;
}

body {
    cursor: default;
    ::selection {
        background-color: rgba(46, 49, 52, .7);
        color: #f5f5f1;
    }
    ::-moz-selection {
        background-color: rgba(46, 49, 52, .7);
        color: #f5f5f1;
    }
}

.wrapper {
    height: calc(100vh - #{$whitespace-height});
    min-height: 36rem;
    position: relative;
    @include media(630px) {
        height: 100vh;
        min-height: 0;
    }
}

// ------------- SLIDES ------------- //
.slide {
    &-wrapper {
        background-size: cover;
        height: 100%;
        background-position: center center;
        position: absolute;
        width: 100%;
        background-blend-mode: darken;
        &:nth-child(1) {
            background-color: rgba(115, 129, 153, .4);
            &:before {
                background-color: rgba(115, 129, 153, .25);
            }
            .slide-content-text {
                text-shadow: 2px 5px 45px rgba(85, 96, 113, 0.25);
            }
        }
        &:nth-child(2) {
            background-color: rgba(144, 171, 184, .7);
            &:before {
                background-color: rgba(144, 171, 184, .3);
            }
            .slide-content-text {
                text-shadow: 2px 5px 45px rgba(121, 142, 152, 0.2);
            }
        }
        &:nth-child(3) {
            background-color: rgba(86, 125, 156, .5);
            &:before {
                background-color: rgba(86, 125, 156, 0.2);
            }
            .slide-content-text {
                text-shadow: 2px 5px 55px rgba(57, 83, 103, 0.4);
            }
        }
        &:before {
            content: "";
            position: absolute;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
    }
    &-inner {
        position: relative;
        z-index: 2;
        height: 100%;
        overflow: hidden;
    }
    &-bg-text {
        font-family: 'Playfair Display';
        color: #000;
        font-size: 42vh;
        line-height: .8;
        opacity: .03;
        font-weight: 900;
        margin-top: -4rem;
        position: absolute;
        top: 50%;
        left: 5vw;
        transform: translateY(-50%);
        > p:last-child {
            padding-left: 4rem;
        }
    }
    &-content {
        color: #fff;
        margin-top: 5rem;
        position: absolute;
        top: 50%;
        left: calc(#{$left-offset} + (.7) * #{$rect-width});
        transform: translateY(-50%);
        display: flex;
        flex-direction: column;
        @include media(1000px) {
            left: calc(#{$left-offset} + 1rem);
        }
        @include media-height(730px) {
            top: 30%;
            transform: translateY(-30%);
            left: calc(#{$left-offset-small} + (.7) * #{$rect-width-small});
        }
        &-text {
            font-family: 'Playfair Display';
            font-size: 9rem;
            letter-spacing: .2rem;
            line-height: .87;
            font-weight: 700;
            will-change: auto;
            @include media-height(790px) {
                font-size: 7rem;
            }
            @include media(1150px) {
                font-size: 7rem;
            }
            @include media(840px) {
                font-size: 5.5rem;
            }
            @include media(630px) {
                margin-bottom: 5.5rem;
            }
            @include media(500px) {
                font-size: 3.5rem;
            }
            > p:last-child {
                padding-left: 3rem;
            }
        }
        &-cta {
            @extend %callout;
            cursor: pointer;
            align-self: flex-start;
            margin-top: 4.5rem;
            margin-left: calc((.3) * 48vh + 4.5rem);
            padding: .9rem 2.2rem;
            border-left: 1px solid #fff;
            border-right: 1px solid #fff;
            transition: .18s ease-in-out;
            font-weight: 700;
            @include media(1000px) {
                background-color: rgba(255, 255, 255, .3);
                padding-top: 1.2rem;
                padding-bottom: 1.2rem;
            }
            @include media(630px) {
                display: none;
            }
            &:hover {
                color: #000;
                background-color: #fff;
            }
        }
    }
    &-rect {
        height: $rect-height;
        width: $rect-width;
        border-image-slice: 10%;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        left: $left-offset;
        border-width: $rect-border-width;
        border-style: solid;
        box-shadow: 2px 2px 90px 30px rgba(41, 50, 61, 0.22);
        will-change: auto;
        @include media-height(790px) {
            left: $left-offset-small;
            height: $rect-height-small;
            width: $rect-width-small;
            border-width: $rect-border-width-small;
        }
        @include media-height(730px) {
            top: 30%;
            transform: translateY(-30%);
        }
        &-filter {
            filter: brightness(110%) contrast(110%) saturate(110%);
        }
    }
    &-side-text {
        @extend %callout;
        position: absolute;
        left: calc(#{$left-offset} - 3rem);
        writing-mode: vertical-rl;
        top: calc((50% - (#{$rect-height} / 2)) + (#{$rect-border-width} / 2));
        @include media-height(790px) {
            left: calc(#{$left-offset-small} - 3rem);
            top: calc((50% - (#{$rect-height-small} / 2)) + (#{$rect-border-width-small} / 2));
        }
        @include media-height(730px) {
            top: calc((40% - (#{$rect-height-small} / 2)) + (#{$rect-border-width-small} / 2));
        }
        > span:first-child {
            font-weight: 700;
        }
        &:after {
            content: "";
            width: 1px;
            background-color: #fff;
            height: 40px;
            display: block;
            position: absolute;
            top: calc(100% + 25px);
            left: 50%;
            transform: translateX(-50%);
        }
    }
}

// ------------- CONTROLS ------------- //
.controls {
    &-container {
        position: absolute;
        z-index: 200;
        display: flex;
        bottom: 0;
        right: 0;
        align-items: flex-end;
        @include media(630px) {
            display: none;
        }
    }
    &-button {
        @extend %callout;
        cursor: pointer;
        background-color: rgba(208, 206, 204, .32);
        border: 0;
        padding: $control-btn-padding 2.2rem;
        flex-basis: 0;
        flex-grow: 1;
        min-width: 15rem;
        transition: .25s ease-in-out;
        outline: 0;
        @include media(730px) {
            padding: 1.2rem 1.4rem;
            min-width: 13rem;
        }
        &:not(.active) {
            &:hover {
                color: #000;
                background-color: #fff;
            }
        }
        &.active {
            cursor: default;
            font-weight: 700;
            background-color: #3b3e45;
            padding-top: $control-btn-padding + $control-active-btn-offset;
            padding-bottom: $control-btn-padding + $control-active-btn-offset;
            margin-bottom: -$control-active-btn-offset;
            position: relative;
            @include media(730px) {
                padding-top: 1.4rem;
                padding-bottom: 1.4rem;
                margin-bottom: -0.15rem;
            }
            &:after {
                content: "";
                background-color: #e3e3e3;
                height: 5px;
                width: calc(100% - 8px);
                position: absolute;
                top: 100%;
                left: 4px;
            }
        }
        &:not(.active) + & {
            border-left: 1px solid rgba(255, 255, 255, .2);
        }
    }
}

// ------------- PAGINATION ------------- //
.pagination {
    &-container {
        position: absolute;
        z-index: 200;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        right: 2rem;
        top: 50%;
        transform: translateY(-50%);
        @include media(920px) {
            display: none;
        }
    }
    &-item {
        width: 30px;
        height: 1px;
        background-color: rgba(255, 255, 255, .6);
        transition: .18s ease-in-out;
        & + & {
            margin-top: 1rem;
        }
        &.active {
            background-color: #fff;
            position: relative;
            transform: translateX(-.6rem);
            width: 35px;
            &:after {
                content: "";
                height: 4px;
                width: 2px;
                border-radius: 35%;
                background-color: #fff;
                display: inline-block;
                position: absolute;
                right: 0;
                top: 50%;
                transform: translateX(.6rem) translateY(-50%);
            }
        }
        &:not(.active) {
            cursor: pointer;
            &:hover {
                background-color: #fff;
                width: 35px;
            }
        }
    }
}

// ------------- ANIMATION EFFECT ------------- //
$slide-swipe: .9s;
$text-cut-up: .5s;
@keyframes slideLeft {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-100%);
    }
}

@keyframes slideRight {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes cutTextUp {
    from {
        clip-path: inset(0 0 -10% 0);
    }
    to {
        clip-path: inset(0 0 100% 0);
    }
}

@keyframes cutTextDown {
    from {
        clip-path: inset(100% 0 0 0);
    }
    to {
        clip-path: inset(-10% 0 -20% 0);
        opacity: 1;
    }
}

@keyframes cutTextDownFromTop {
    from {
        clip-path: inset(0 0 100% 0);
    }
    to {
        clip-path: inset(0 0 -30% 0);
        opacity: 1;
    }
}

@keyframes rectMovement {
    0% {
        transform: translateX(0) rotate(0) translateY(-50%);
    }
    60% {
        opacity: 1;
    }
    100% {
        transform: translateX(calc(-#{$rect-width} + -#{$left-offset})) rotate(12deg) translateY(-50%);
        opacity: 0;
    }
}

@include media-height(730px) {
    @keyframes rectMovement {
        0% {
            transform: translateX(0) rotate(0) translateY(-30%);
        }
        60% {
            opacity: 1;
        }
        100% {
            transform: translateX(calc(-#{$rect-width} + -#{$left-offset})) rotate(12deg) translateY(-30%);
            opacity: 0;
        }
    }
}

@keyframes rectMovementFromRight {
    0% {
        transform: translateX(calc(#{$rect-width})) rotate(12deg) translateY(-50%);
        opacity: 0;
    }
    60% {
        opacity: 1;
    }
    100% {
        transform: translateX(0) rotate(0) translateY(-50%);
        opacity: 1;
        @include media-height(730px) {
            transform: translateX(0) rotate(0) translateY(-30%);
        }
    }
}

@include media-height(730px) {
    @keyframes rectMovementFromRight {
        0% {
            transform: translateX(calc(#{$rect-width})) rotate(12deg) translateY(-30%);
            opacity: 0;
        }
        60% {
            opacity: 1;
        }
        100% {
            transform: translateX(0) rotate(0) translateY(-30%);
            opacity: 1;
        }
    }
}

@keyframes rectMovementRight {
    0% {
        transform: translateX(calc(-#{$rect-width} + -#{$left-offset})) rotate(12deg) translateY(-50%);
    }
    40% {
        opacity: 1;
    }
    100% {
        transform: translateX(0) rotate(0) translateY(-50%);
        opacity: 1;
        @include media-height(730px) {
            transform: translateX(0) rotate(0) translateY(-30%);
        }
    }
}

@include media-height(730px) {
    @keyframes rectMovementRight {
        0% {
            transform: translateX(calc(-#{$rect-width} + -#{$left-offset})) rotate(12deg) translateY(-30%);
        }
        40% {
            opacity: 1;
        }
        100% {
            transform: translateX(0) rotate(0) translateY(-30%);
            opacity: 1;
        }
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-wrapper {
    opacity: 0;
    transition-delay: $slide-swipe + $text-cut-up;
    transition-duration: 0s;
    transition-property: opacity;
    will-change: opacity, transform;
    &:not(.active) {
        animation-delay: $text-cut-up;
        animation-name: slideLeft;
        animation-duration: $slide-swipe;
        animation-timing-function: cubic-bezier(0.18, 0.54, 0.52, 0.93);
        pointer-events: none;
        .slide-content-text > p,
        .slide-side-text {
            animation-name: cutTextUp;
            animation-duration: $text-cut-up;
            animation-timing-function: ease-out;
        }
        .slide-rect {
            animation-name: rectMovement;
            animation-duration: $text-cut-up;
            animation-timing-function: ease;
            animation-fill-mode: forwards;
        }
    }
    &.active {
        transition-delay: 0s;
        opacity: 1;
        .slide-content-text > p {
            opacity: 0;
            animation-delay: $text-cut-up + .3s;
            animation-name: cutTextDown;
            animation-duration: $text-cut-up;
            animation-timing-function: ease;
            animation-fill-mode: forwards;
        }
        .slide-rect {
            opacity: 0;
            animation-name: rectMovementFromRight;
            animation-duration: $text-cut-up - .05s;
            animation-timing-function: ease;
            animation-fill-mode: forwards;
            animation-delay: $slide-swipe;
        }
    }
    .is-previous & {
        &:not(.active) {
            animation: none;
            .slide-rect {
                animation: none;
            }
        }
        &.active {
            transform: translateX(-100%);
            animation-fill-mode: forwards;
            animation-delay: $text-cut-up;
            animation-name: slideRight;
            animation-duration: $slide-swipe - .1s;
            animation-timing-function: cubic-bezier(0.18, 0.54, 0.52, 0.93);
            .slide-rect {
                opacity: 0;
                animation-name: rectMovementRight;
                animation-duration: $text-cut-up;
                animation-timing-function: ease-out;
                animation-fill-mode: forwards;
                animation-delay: $slide-swipe;
            }
        }
    }
}

.first-load {
    .slide-wrapper.active .slide-side-text,
    .slide-wrapper.active .slide-content-cta,
    .slide-wrapper.active .slide-rect,
    .controls-container {
        opacity: 0;
        animation-name: fadeIn;
        animation-delay: .3s;
        animation-duration: .3s;
        animation-fill-mode: forwards;
        animation-timing-function: ease-in;
    }
    .slide-wrapper.active .slide-content-text > p {
        animation-name: fadeIn;
        animation-delay: $text-cut-up;
        animation-duration: $text-cut-up + .2s;
    }
}

var app = new Vue({
    el: '#app',
    data: {
        currentSlide: 0,
        isPreviousSlide: false,
        isFirstLoad: true,
        slides: [
            {
                headlineFirstLine: "Lorem",
                headlineSecondLine: "Vitaer",
                sublineFirstLine: "Nihil sub sole",
                sublineSecondLine: "novum",
                bgImg: "https://i.postimg.cc/C5yvGSkm/slide0.jpg",
                rectImg: "https://i.postimg.cc/vTW0XkvM/slide-rect0.jpg"
            },
            {
                headlineFirstLine: "Nulla",
                headlineSecondLine: "Auctor",
                sublineFirstLine: "Il n'y a rien de neuf sous",
                sublineSecondLine: "le soleil",
                bgImg: "https://i.postimg.cc/Qx34VNXM/slide1.jpg",
                rectImg: "https://i.postimg.cc/ryWZ8R2b/slide-rect1.jpg"
            },
            {
                headlineFirstLine: "Nullam",
                headlineSecondLine: "Ultricies",
                sublineFirstLine: "Τίποτα καινούργιο κάτω από",
                sublineSecondLine: "τον ήλιο",
                bgImg: "https://i.postimg.cc/t4RBtrnQ/slide2.jpg",
                rectImg: "https://i.postimg.cc/3JFLGMRF/slide-rect2.jpg"
            }
        ]
    },
  mounted: function () {
    var productRotatorSlide = document.getElementById("app");
        var startX = 0;
        var endX = 0;

        productRotatorSlide.addEventListener("touchstart", (event) => startX = event.touches[0].pageX);

        productRotatorSlide.addEventListener("touchmove", (event) => endX = event.touches[0].pageX);

        productRotatorSlide.addEventListener("touchend", function(event) {
            var threshold = startX - endX;

            if (threshold < 150 && 0 < this.currentSlide) {
                this.currentSlide--;
            }
            if (threshold > -150 && this.currentSlide < this.slides.length - 1) {
                this.currentSlide++;
            }
        }.bind(this));
  },
    methods: {
        updateSlide(index) {
            index < this.currentSlide ? this.isPreviousSlide = true : this.isPreviousSlide = false;
            this.currentSlide = index;
            this.isFirstLoad = false;
        }
    }
})