@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

body {
    margin: 0;
    background-color: #F4F4F4;
    font-family: Poppins;
}

:root {
    --item1-transform: translateX(-100%) translateY(-5%) scale(1.5);
    --item1-filter: blur(30px);
    --item1-zIndex: 11;
    --item1-opacity: 0;

    --item2-transform: translateX(0);
    --item2-filter: blur(0px);
    --item2-zIndex: 10;
    --item2-opacity: 1;

    --item3-transform: translate(50%,10%) scale(0.8);
    --item3-filter: blur(10px);
    --item3-zIndex: 9;
    --item3-opacity: 1;

    --item4-transform: translate(90%,20%) scale(0.5);
    --item4-filter: blur(30px);
    --item4-zIndex: 8;
    --item4-opacity: 1;
    
    --item5-transform: translate(120%,30%) scale(0.3);
    --item5-filter: blur(40px);
    --item5-zIndex: 7;
    --item5-opacity: 0;
}

header {
    width: 1140px;
    max-width: 90%;
    display: flex;
    justify-content: space-between;
    margin: auto;
    height: 50px;
    align-items: center;
    position: relative;
    z-index: 1000;
}

header .logo {
    font-weight: bold;
}

header nav a {
    margin-left: 30px;
    text-decoration: none;
    color: #555;
    font-weight: 500;
}

/* carousel */
.carousel {
    position: relative;
    height: 800px;
    overflow: hidden;
    margin-top: 30px;
}

.carousel .list {
    position: absolute;
    width: 1140px;
    max-width: 90%;
    height: 80%;
    left: 50%;
    transform: translateX(-50%);
}

.carousel .list .item {
    position: absolute;
    left: 0%;
    width: 70%;
    height: 100%;
    font-size: 15px;
    transition: left 0.5s, opacity 0.5s, width 0.5s;
}

.carousel .list .item:nth-child(n + 6) {
    opacity: 0;
}

.carousel .list .item:nth-child(2) {
    z-index: 10;
    transform: translateX(0);
}

.carousel .list .item img {
    width: 50%;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: right 1.5s;
}

.carousel .list .item .introduce {
    opacity: 0;
    pointer-events: none;
}

.carousel .list .item:nth-child(2) .introduce {
    opacity: 1;
    pointer-events: auto;
    width: 400px;
    position: absolute;
    top: 50%;
    transform:  translateY(-50%);
    transition: opacity 0.5s;
}

.carousel .list .item .introduce .title {
    font-size: 2em;
    font-weight: 500;
    line-height: 1em;
}

.carousel .list .item .introduce .topic {
    font-size: 4em;
    font-weight: 500;
}

.carousel .list .item .introduce .des {
    font-size: small;
    color: #5559;
}

.carousel .list .item .introduce .seeMore {
    font-family: Poppins;
    margin-top: 1.2em;
    padding: 5px 0;
    border: none;
    border-bottom: 1px solid #555;
    background-color: transparent;
    font-weight: bold;
    letter-spacing: 3px;
    transition: background 0.5s;
}

.carousel .list .item .introduce .seeMore:hover {
    background: #eee;
}

.carousel .list .item:nth-child(1) {
    transform: var(--item1-transform);
    filter: var(--item1-filter);
    z-index: var(--item1-zIndex);
    opacity: var(--item1-opacity);
    pointer-events: none;
}

.carousel .list .item:nth-child(3) {
    transform: var(--item3-transform);
    filter: var(--item3-filter);
    z-index: var(--item3-zIndex);
}

.carousel .list .item:nth-child(4) {
    transform: var(--item4-transform);
    filter: var(--item4-filter);
    z-index: var(--item4-zIndex);
}

.carousel .list .item:nth-child(5) {
    transform: var(--item5-transform);
    filter: var(--item5-filter);
    opacity: var(--item5-opacity);
    pointer-events: none;
}

/* animation text in item2 */
.carousel .list .item:nth-child(2) .introduce .title,
.carousel .list .item:nth-child(2) .introduce .topic,
.carousel .list .item:nth-child(2) .introduce .des,
.carousel .list .item:nth-child(2) .introduce .seeMore {
    opacity: 0;
    animation: showContent 0.5s 1s ease-in-out 1 forwards;
}

@keyframes showContent {
    from {
        transform: translateY(-30px);
        filter: blur(10px);
    }
    to {
        transform: translateY(0);
        opacity: 1;
        filter: blur(0px);
    }
}

.carousel .list .item:nth-child(2) .introduce .topic {
    animation-delay: 1.2s;
}

.carousel .list .item:nth-child(2) .introduce .des {
    animation-delay: 1.4s;
}

.carousel .list .item:nth-child(2) .introduce .seeMore {
    animation-delay: 1.6s;
}

/* next click */
.carousel.next .item:nth-child(1) {
    animation: transformFromPosition2 0.5s ease-in-out 1 forwards;
}

@keyframes transformFromPosition2 {
    from {
        transform: var(--item2-transform);
        filter: var(--item2-filter);
        opacity: var(--item2-opacity);
    }
}

.carousel.next .item:nth-child(2) {
    animation: transformFromPosition3 0.7s ease-in-out 1 forwards;
}

@keyframes transformFromPosition3 {
    from {
        transform: var(--item3-transform);
        filter: var(--item3-filter);
        opacity: var(--item3-opacity);
    }
}

.carousel.next .item:nth-child(3) {
    animation: transformFromPosition4 0.9s ease-in-out 1 forwards;
}

@keyframes transformFromPosition4 {
    from {
        transform: var(--item4-transform);
        filter: var(--item4-filter);
        opacity: var(--item4-opacity);
    }
}

.carousel.next .item:nth-child(4) {
    animation: transformFromPosition5 1.1s ease-in-out 1 forwards;
}

@keyframes transformFromPosition5 {
    from {
        transform: var(--item5-transform);
        filter: var(--item5-filter);
        opacity: var(--item5-opacity);
    }
}

/* previous */
.carousel.prev .list .item:nth-child(5) {
    animation: transformFromPosition4 0.5s ease-in-out 1 forwards;
}

.carousel.prev .list .item:nth-child(4) {
    animation: transformFromPosition3 0.7s ease-in-out 1 forwards;
}

.carousel.prev .list .item:nth-child(3) {
    animation: transformFromPosition2 0.9s ease-in-out 1 forwards;
}

.carousel.prev .list .item:nth-child(2) {
    animation: transformFromPosition1 1.1s ease-in-out 1 forwards;
}

@keyframes transformFromPosition1 {
    from {
        transform: var(--item1-transform);
        filter: var(--item1-filter);
        opacity: var(--item1-opacity);        
    }
}

/* detail  */
.carousel .list .item .detail {
    opacity: 0;
    pointer-events: none;
}

/* showDetail */
.carousel.showDetail .list .item:nth-child(3),
.carousel.showDetail .list .item:nth-child(4) {
    left: 100%;
    opacity: 0;
    pointer-events: none;
}

.carousel.showDetail .list .item:nth-child(2) {
    width: 100%;
}

.carousel.showDetail .list .item:nth-child(2) .introduce {
    opacity: 0;
    pointer-events: none;
}

.carousel.showDetail .list .item:nth-child(2) img {
    right: 50%;
}

.carousel.showDetail .list .item:nth-child(2) .detail {
    opacity: 1;
    width: 50%;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    text-align: right;
    pointer-events: auto;
}

.carousel.showDetail .list .item:nth-child(2) .detail .title {
    font-size: 4em;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications {
    display: flex;
    gap: 10px;
    width: 100%;
    border-top: 1px solid #5553;
    margin-top: 20px;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications div {
    width: 90px;
    text-align: center;
    flex-shrink: 0;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications div p:nth-child(1) {
    font-weight: bold;
}

.carousel.carousel.showDetail .list .item:nth-child(2) .checkout button {
    font-family: Poppins;
    background-color: transparent;
    border: 1px solid #5555;
    margin-left: 5px;
    padding: 5px 10px;
    letter-spacing: 2px;
    font-weight: 500;
}

.carousel.carousel.showDetail .list .item:nth-child(2) .checkout button:nth-child(2) {
    background-color: #693EFF;
    color: #eee;
}

.carousel.showDetail .list .item:nth-child(2) .detail  .title,
.carousel.showDetail .list .item:nth-child(2) .detail  .des,
.carousel.showDetail .list .item:nth-child(2) .detail .specifications,
.carousel.showDetail .list .item:nth-child(2) .detail .checkout {
    opacity: 0;
    animation: showContent 0.5s 1s ease-in-out 1 forwards;
}

.carousel.showDetail .list .item:nth-child(2) .detail  .des {
    animation-delay: 1.2s;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications {
    animation-delay: 1.4s;
}

.carousel.showDetail .list .item:nth-child(2) .detail .checkout {
    animation-delay: 1.6s;
}

/* Arrow buttons - positioned at bottom center */
.arrows {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
    z-index: 10;
}

#prev,
#next {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-family: monospace;
    border: 1px solid #5555;
    font-size: large;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    pointer-events: auto;
}

/* See All button - positioned at top center */
#back {
    position: fixed;
    top: 70px; /* Moved higher up */
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    border: none;
    border-bottom: 1px solid #555;
    font-family: Poppins;
    font-weight: bold;
    letter-spacing: 3px;
    background-color: transparent;
    padding: 10px;
    opacity: 1;
    transition: opacity 0.5s;
    cursor: pointer;
    margin-top: 10px;
}

.carousel::before {
    width: 500px;
    height: 300px;
    content: '';
    background-image: linear-gradient(70deg, #DC422A, blue);
    position: absolute;
    z-index: -1;
    border-radius: 20% 30% 80% 10%;
    filter: blur(150px);
    top: 50%;
    left: 50%;
    transform: translate(-10%, -50%);
    transition: 1s;
}

.carousel.showDetail::before {
    transform: translate(-100%, -50%) rotate(90deg);
    filter: blur(130px);
}

/* Info Popup Styles */
.info-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.info-popup-content {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.info-popup-content h2 {
    margin-top: 0;
    color: #693EFF;
}

.info-popup-content p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.info-popup-content p strong {
    color: #333;
}

.close-popup {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: color 0.3s;
}

.close-popup:hover {
    color: #333;
}

@media screen and (max-width: 991px) {
    /* ipad, tablets */
    .carousel .list .item {
        width: 90%;
    }
    .carousel.showDetail .list .item:nth-child(2) .detail .specifications {
        overflow: auto;
    }
    .carousel.showDetail .list .item:nth-child(2) .detail .title {
        font-size: 2em;
    }
}

@media screen and (max-width: 767px) {
    /* mobile */
    .carousel {
        height: 600px;
        margin-top: 20px;
    }
    .carousel .list .item {
        width: 100%;
        font-size: 10px;
    }
    
    .carousel .list {
        height: 100%;
    }
    .carousel .list .item:nth-child(2) .introduce {
        width: 50%;
    }
    
    .carousel .list .item img {
        width: 40%;
    }
    .carousel.showDetail .list .item:nth-child(2) .detail {
        backdrop-filter: blur(10px);
        font-size: small;
    }
    .carousel .list .item:nth-child(2) .introduce .des,
    .carousel.showDetail .list .item:nth-child(2) .detail .des {
        height: 100px;
        overflow: auto;
    }
    .carousel.showDetail .list .item:nth-child(2) .detail .checkout {
        display: flex;
        width: max-content;
        float: right;
    }
    
    /* Adjust arrows for mobile */
    #prev,
    #next {
        width: 35px;
        height: 35px;
        font-size: medium;
    }
    
    #back {
        top: 60px; /* Adjusted for mobile */
        font-size: 0.8em;
        padding: 8px;
    }
    
    .arrows {
        bottom: 10px;
        gap: 10px;
    }
    
    /* Info popup adjustments for mobile */
    .info-popup-content {
        padding: 20px;
    }
    
    .info-popup-content h2 {
        font-size: 1.5em;
    }
}