#theme-toggle {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 2000;
    background: #008080;
    color: #fff;
    border: none;
    border-radius: 50px;
    padding: 16px 24px;
    font-size: 1.2rem;
    box-shadow: 0 4px 16px rgba(0,128,128,0.15);
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    border-radius: 50%;
}

body{
    margin: 0;
    background-color: #c7f8f8;
}
.main{
    width: 100%;
    height: 50vmin;
    display: flex;
    margin-top: 3vmin;
}
.sub_main.first{
    width: 70%;
    height: 45vmin;
    background-color:#ffffffc3;
    margin: 20px;
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}
.main-image-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.main-responsive-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease-in-out;
    max-width: 100%;
    display: block;
}

.main-image-container:hover .main-responsive-image {
    transform: scale(1.03);
}

.sub_main.second{
    width: 40%;
    height: 45vmin;
    margin: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.first_sec {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2vmin;
    margin-bottom: 2vmin;
}
.activity{
    height: 18vmin;
    width: 18vmin;
    border-radius: 50%;
    background-color: #B4C5E4;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    margin: 3px;
    position: relative;
}
.section_row{
    width: 100%;
    height: 60vmin;
    display: flex;
}
section{
    margin-bottom: 1vmin;
}
.section_row > .data{
    width: 50%;
    height: 58vmin;
    background-color: rgb(255, 255, 255);
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    cursor: pointer;
    margin: 1vmin;
}
.slides{
    width: 100%;
    height: 60vmin;
    background-color: white;
}
#footer{
    width: 100%;
    height: 70vmin;
    background-color:white;
    margin-top: 2vmin;
}

/* for progress circles */
 .progress-circle {
            position: absolute;
            width: 100%;
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .progress-ring {
            transform: rotate(-90deg);
            width: 100%;
            height: 100%;
        }

        .progress-ring__circle {
            stroke-width: 6;
            fill: transparent;
            r: 45%;
            cx: 50%;
            cy: 50%;
            stroke-linecap: round;
        }

        .progress-ring__background {
            stroke: #e9ecef;
        }

        .progress-ring__progress {
            stroke-dasharray: 600;
            stroke-dashoffset: 600;
            transition: stroke-dashoffset 2s ease-in-out;
        }

        .progress-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 1.5rem;
            font-weight: bold;
            color: #333;
        }
/* Progress colors */
        .progress-75 { stroke: #03ff3e; }
        .progress-38 { stroke: #ffcc00; }
        .progress-96 { stroke: #ff0000; }
        .progress-91 { stroke: #00d0ff; }


/* for games */
         .game-img {
            height: 160px;
            background: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #999;
            font-size: 3rem;
        }

         .game-content {
            padding: 1.5rem;
        }

        .game-title {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
            color: #333;
        }

        .game-desc {
            color: #666;
            font-size: 0.9rem;
        }

/* for Responsive image styles */
        .data .image-link {
            display: block;
            width: 100%;
            height: 100%;
            overflow: hidden;
            text-decoration: none;
        }

        .data .responsive-image {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .data .image-link:hover .responsive-image {
            transform: scale(1.05);
        }

        .data {
            overflow: hidden;
            transition: box-shadow 0.3s ease;
            position: relative;
        }

        .data:hover {
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .section-title {
            margin: 0;
            padding-top: 5px;
            color: #333;
            font-size: 1.5rem;
            text-align: center;
            background-color: #ffffff;
            border-bottom: 2px solid #f0f0f0;
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        .game-meta {
            display: flex;
            justify-content: space-between;
            color: #888;
            font-size: 0.85rem;
        }
        .link_style{
            color: black;
            text-decoration: none;
        }
        .section-title{
            font-size: 3vmin;
            font-family: sans-serif;
        }
        .progress-text{
            font-size: 4vmin;
            font-family: sans-serif;
        }

nav{
    height: 10vmin;
    background-color: rgba(146, 244, 247, 0.638);
    display: flex;
    justify-content: center;
    align-items: center;
}
.nav_btn{
    color: rgb(0, 0, 0);
    font-family: sans-serif;
    width: 12vmin;
    text-align: left;
    font-size: 3vmin;
    margin-left: 10px;
}
.nav_links {
    list-style: none;
    display: flex;
    gap: 2vmin;
}
#logo{
    height: 55px;
    width: 55px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-right: 12px;
}

.btn-login, .btn-signup, .btn-logout {
    background: #fff;
    color: #008080;
    border: none;
    border-radius: 6px;
    font-size: 2vmin;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(44,62,80,0.08);
    transition: background 0.2s, color 0.2s;
    height: 3vmin;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.btn-login:hover, .btn-signup:hover, .btn-logout:hover {
    background: #2dce89;
    color: #fff;
}
.profile-img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: 0 1px 4px rgba(44,62,80,0.10);
    cursor: pointer;
}
@media (max-width: 900px) {
    .nav-container {
        flex-direction: column;
        align-items: flex-start;
        padding: 0 1vw;
    }
    .nav-menu {
        gap: 1vw;
        margin-top: 0.5rem;
    }
    .nav-auth, .nav-profile {
        gap: 0.5vw;
        margin-top: 0.5rem;
    }
}