* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#link {
    text-decoration: none;
    color: black;
}

body {
    font-family: "Orbitron", sans-serif;
    font-weight: 900;
    font-style: normal;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow-x: hidden;
    /* Prevent page scroll */
    width: 100%;
}

#top_banner {
    width: 100%;
    height: 850px;
    background-image: url("images/seoul.jpg");
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#middle_info {
    background-image: url("images/seoul_ud.jpg");
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 20px 0;
}

.cards-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    /* Constrain width */
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    /* Center the container */
}

.cards {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 30px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 40px;
    width: 100%;
    box-sizing: border-box;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    /* Hide scrollbar for Firefox */
    -ms-overflow-style: none;
    /* Hide scrollbar for IE and Edge */
}

.cards::-webkit-scrollbar {
    display: none;
    /* Hide scrollbar for Chrome, Safari and Opera */
}

.scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.7);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    /* Center the arrow icon */
    align-items: center;
    justify-content: center;
}

.scroll-btn:hover {
    background: white;
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.2);
}

.left-btn {
    left: 20px;
}

.right-btn {
    right: 20px;
}

.cards>div {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    width: 300px;
    flex: 0 0 auto;
    /* Prevent shrinking */
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease;
    scroll-snap-align: center;
}



.cards>div:hover {
    transform: translateY(-10px);
}

.card_image {
    width: 100%;
    height: 350px;
    background-position: center;
    background-size: cover;
    transition: background-image 0.3s ease-in-out;
}

#ddp {
    background-image: url("images/ddp.jpg");
}

#card1:hover #ddp {
    background-image: url("images/ddp2.jpg");
}

#namsan {
    background-image: url("images/namsan_tower.jpg");
}

#card2:hover #namsan {
    background-image: url("images/namsan_tower2.jpg");
}

#lotte {
    background-image: url("images/lotte_tower.jpg");
}

#card3:hover #lotte {
    background-image: url("images/lotte_tower2.jpg");
}

#Gwanghwamun_Gate {
    background-image: url("images/Gwanghwamun_Gate.jpg");
}

#card4:hover #Gwanghwamun_Gate {
    background-image: url("images/Gwanghwamun_Gate2.jpg");
}

#hangang {
    background-image: url("images/hangang.jpg");
}

#card5:hover #hangang {
    background-image: url("images/hangang2.jpg");
}

#building_63 {
    background-image: url("images/63building.jpg");
}

#card6:hover #building_63 {
    background-image: url("images/63building2.jpg");
}

h1,
h2 {
    padding: 4px 6px;
    background: white;
    border-radius: 3px;
    margin: 10px 0;
    color: black;
}

.cards h2 {
    background: none;
    padding: 0;
    font-size: 1.5rem;
    color: #333;
    margin-top: 15px;
}

.cards p {
    color: #666;
    padding: 0 20px 20px;
    font-size: 0.9rem;
    margin: 0;
}

#title {
    font-size: 50px;
}