/* cloud layout */
.cloud-grid {
    position: relative;
    height: 1300px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* gray deco clouds */
.cloud-deco {
    position: absolute;
    background-image: url('../images/cloud.png');
    background-size: contain;
    background-repeat: no-repeat;
    z-index: 5;
    pointer-events: none;
}

.cloud-deco.deco-c1,
.cloud-deco.deco-c2,
.cloud-deco.deco-c3,
.cloud-deco.deco-c4 {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.cloud-deco.deco-c1.visible,
.cloud-deco.deco-c2.visible,
.cloud-deco.deco-c3.visible,
.cloud-deco.deco-c4.visible {
    opacity: 1;
    transform: scale(1);
}

.cloud-text {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.cloud-text.visible {
    opacity: 1;
    transform: scale(1);
}

.cloud-deco:not(.deco-c1):not(.deco-c2):not(.deco-c3):not(.deco-c4) {
    opacity: 1;
    transform: none;
}

.deco-c1 {
    top: 420px;
    right: 64%;
    width: 65px;
    height: 40px;
}

.deco-c2 {
    top: 370px;
    right: 49%;
    width: 150px;
    height: 125px;
}

.deco-c3 {
    top: 300px;
    right: 59%;
    width: 70px;
    height: 50px;
}

.deco-c4 {
    top: 200px;
    right: 48%;
    width: 125px;
    height: 100px;
}

.deco-1 {
    top: 1550px;
    right: 25%;
    width: 200px;
    height: 150px;
}

.deco-2 {
    top: 550px;
    right: 42%;
    width: 100px;
    height: 75px;
}

.deco-3 {
    top: 2000px;
    right: 70%;
    width: 300px;
    height: 225px;
    transform: scaleX(-1);
}

.deco-4 {
    top: 975px;
    right: 55%;
    width: 150px;
    height: 100px;
}

.deco-5 {
    top: 1200px;
    right: 25%;
    width: 100px;
    height: 75px;
}

.deco-6 {
    top: 1300px;
    right: 10%;
    width: 80px;
    height: 60px;
}

.deco-7 {
    top: 1450px;
    right: 65%;
    width: 175px;
    height: 125px;
    z-index: 3;
}

.deco-8 {
    top: 1475px;
    right: 72%;
    width: 100px;
    height: 75px;
    z-index: 3;
}

.deco-9 {
    top: -20px;
    right: 65%;
    width: 200px;
    height: 150px;
    transform: scaleX(-1);
}

.deco-10 {
    top: -50px;
    right: 40%;
    width: 150px;
    height: 100px;
}

/* white deco cloud*/
.cloud-deco2 {
    position: absolute;
    background-image: url('../images/cloudWhite.png');
    background-size: contain;
    background-repeat: no-repeat;
    z-index: 10;
    pointer-events: none;
}

.deco2-1 {
    top: -125px;
    right: 50%;
    width: 100px;
    height: 75px;
}

.deco2-2 {
    top: -250px;
    right: 25%;
    width: 175px;
    height: 125px;
}

.deco2-3 {
    top: 450px;
    right: 20%;
    width: 300px;
    height: 225px;
}

.deco2-4 {
    top: 350px;
    right: 10%;
    width: 150px;
    height: 100px;
}

.deco2-5 {
    top: 400px;
    right: 70%;
    width: 200px;
    height: 150px;
}

.deco2-6 {
    top: 200px;
    right: 65%;
    width: 80px;
    height: 60px;
}

/* flip cards */
.flip-card:nth-child(1) {
    top: 50px;
    left: 50px;
}

.flip-card:nth-child(2) {
    top: 200px;
    right: 80px;
}

.flip-card:nth-child(3) {
    top: 600px;
    left: 25%;
}

.flip-card {
    background: transparent;
    width: 550px;
    height: 400px;
    perspective: 1000px;
    cursor: pointer;
    position: absolute;
    z-index: 10;
    opacity: 1;
    transform: none;
}

.flip-card.centered {
    margin-top: 10px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front {
    background-image: url('../images/cloudFlip.png');
    background-size: 100% 100%;
    background-position: center;
    background-repeat: no-repeat;
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 60px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.flip-card-back {
    background-image: url('../images/cloudFlip.png');
    background-size: auto 100%;
    background-position: center;
    background-repeat: no-repeat;
    backface-visibility: hidden;
    position: absolute;
    width: 100%;
    height: 100%;
    transform: rotateY(180deg) scaleX(-1);
    justify-content: center;
    align-items: center;
    border-radius: 60px;
    padding: 40px;
}

.flip-card-back h3,
.flip-card-back p {
    transform: scaleX(-1);
    position: relative;
    left: -10px;
    top: 50px;
    margin-left: 30px;
}

.info-icon {
    position: absolute;
    top: 70px;
    right: 70px;
    background: #636363;
    color: #FFFFFF;
    border-radius: 5px;
    padding: 2px 8px;
    font-weight: bold;
}

.flip-card-front h4 {
    position: absolute;
    top: 75px;
    left: 53%;
    transform: translateX(-50%);
    width: 100%;
}

.mini-chart {
    position: absolute;
    top: 120px;
    left: 53%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
}

/* smog & green areas*/
.smog-area {
    background-color: #474747;
    min-height: 300px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 150px;
    padding-right: 150px;
    margin-top: -50px;
    z-index: 5;
}
.smog-area svg {
    position: absolute;
    top: 50px;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; 
    overflow: hidden;
}

.green-area {
    background-color: #a3d271;
    flex: 1;
    min-height: 750px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 150px;
    padding-right: 150px;
    padding-top: 50px;
}

/* transition clouds*/
.bottom-gray-cloud {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: translateY(99%);
    z-index: 10;
}

.cloud-transition {
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 100%;
    pointer-events: none;
    z-index: 1;
}

.cloud-transition.pinned {
    position: fixed;
    top: auto;
    left: 0;
    z-index: 1;
}

.cloud-transition svg {
    display: block;
    width: 100%;
    height: 250px;
    transform: rotate(180deg);
    overflow: visible;
    pointer-events: none;
}

/*car animation*/
#moving-car {
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* Train Animation */
.train-container {
    overflow-x: hidden;
    position: relative;
    width: 100vw;
    margin-left: -150px;    /* Negative Margin, um Padding auszugleichen */
    padding-left: 0;
    padding-right: 0;
}

.train-wrapper {
    display: inline-block;
    white-space: nowrap;
    will-change: transform;
    transition: transform 0.05s linear; 
}

.train-img {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.street-container {
    position: relative;
    margin-top: auto;
    width: 100vw;
    left: 50%;
    transform: translateX(-50%);
    overflow: hidden;
    line-height: 0;
}

.street-wrapper {
    display: flex;
    align-items: flex-start;
    width: 100%;
}

.street-wrapper img {
    flex: 1;
    min-width: 0;
    height: auto;
    display: block;
    margin-right: -1px;
}

.car-wrapper-top, .car-wrapper-bottom {
    position: absolute;
    left: 0;
    width: 100vw;
    height: 0px;
    pointer-events: none;
    z-index: 10;
}