/* Resetting some default styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


body, html {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    /*nEW*/
    overflow-y: auto;
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
    flex-direction: column;

    /****/
    height: 100%; /* Make sure the page fills the viewport */
    margin: 0; /* Remove default margin */
    display: flex; /* Use flexbox for centering */
    justify-content: center; /* Center horizontally */
    align-items: center; /* Center vertically */
    font-family: Arial, sans-serif; /* Optional: Choose a font */
}



.signup-container {
    display: block;
}

/* Username Form Screen */
#formSection {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, 50%);
    text-align: center;
    /*NEW*/
    background-color: #fff;
    border-radius: 8px; 
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); 
    padding: 20px;
    width: 80%;
    max-width: 600px;
    text-align: center;
    position: relative;
}

#usernameForm {
    background-color: #ffffff;
    padding: 10px;
}

    #usernameForm label {
        display: block;
        margin-bottom: 10px;
        font-weight: bold;
    }


    #usernameForm input[type="text"] {
        width: calc(100% - 20px);
        padding: 10px;
        margin-bottom: 20px;
        border: 1px solid #ccc;
        border-radius: 5px;
        font-size: 16px;
    }

        #usernameForm input[type="text"]:focus {
            border: 1px solid #007bff;
            box-shadow: 0 0 5px rgba(76, 175, 80, 0.5); /* optional: adds a subtle glow effect */
            outline: none;
            border-color: #CDE7FF;
            box-shadow: 0 0 8px rgba(205, 231, 255, 0.6);
        }

    #usernameForm button[type="submit"] {
        padding: 10px 20px;
        background-color: #007bff;
        color: #fff;
        border: none;
        border-radius: 5px;
        cursor: pointer;
    }

        #usernameForm button[type="submit"]:hover {
            background-color: #3e8e41;
        }


    /* Modal for Login */
    /* Modal styles */
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent background */
        z-index: 100; 
        display: none; /* Hide the overlay by default */
    }

    .modal {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 100; /* Higher than the overlay */
        background-color: #fff;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
        display: none;
    }

    .modal-content {
        background-color: #fefefe;
        margin: 15% auto;
        padding: 20px;
        border: 1px solid #888;
        width: 80%;
    }

    .modal-close {
        color: #aaa;
        float: right;
        font-size: 28px;
        font-weight: bold;
    }

        .modal-close:hover,
        .modal-close:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
        }

#logoutButton{
    display:block;
}


/* App Screens */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center; /* Center items vertically */
    padding: 10px 20px;
    position: sticky;
    top: 0;
    z-index: 100; /* Ensure it stays on top of other elements */
    padding: 0;
    padding: 20px 20px;
}


.user-profile {
    display: flex;
    align-items: center;
    padding: 5px 20px 5px 20px;
    background-color: #ffffff;
    line-height: 0.4rem;
    border-bottom: 6px #f5f5f5 solid;
    position: sticky;
    top: 44px; /* Adjust the value to position it below the header */
    z-index: 1; /* Ensure it stays on top of other elements */
    display:none; /*set to block for INFINITE_DISPLAY*/
}

.avatar  {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 20px;
}
 #userAvatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 20px;
}
/* You can also add a specific class for sticky row avatars */
.sticky-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 20px;
}

.user-details {
    flex-grow: 1;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    align-items: center;
}

    .user-details h2 {
        font-size: 1.2rem;
    }

.xp-bar {
    background-color: #d3d3d3;
    height: 6px;
    border-radius: 5px;
    overflow: hidden;
}

.xp-progress {
    background-color: #007bff;
    height: 100%;
    width: 70%; /* Adjust this percentage based on the XP accumulated */
}

.xp-score {
    font-weight: bold;
    font-size: 1.2rem;
}

#screens > div {
    display: none; /* Hide all screens by default */
    margin-bottom: 40px;
    padding-top: 80px;
}

    #screens > div#home_screen {
        display: block; /* Show the home screen by default */
    }

.tabs {
    display: flex;
    justify-content: space-around;
    background-color: #eaeaea;
    padding: 10px 0;
    position: sticky;
    top: 123px; /* Adjust the value to position it below the header */
    z-index: 1; /* Ensure it stays on top of other elements */
    border-bottom: 1px #ccc solid;
    display: none; /*INFINITE_DISPLAY*/
    display: block; /*normal tabbed interface*/
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}
}

button.tab {
    background: none !important;
    border: none !important;
    font-size: 16px;
    padding: 10px 20px;
    cursor: pointer;
}

    button.tab.active {
        background-color: #007bff;
        color: #fff;
        border-radius: 10px;
    }

.tab {
    display: inline-block;
    font-size: 16px;
    padding: 10px 20px;
    cursor: pointer;
}

    .tab.active {
        background-color: #007bff;
        color: #fff;
        border-radius: 10px;
    }

.tab-content {
    display: block; /* INFINITE SCROLLING*/
    display: none;
    /* modern styling*/
    background-color: #FFFFFF; /* White background */
    /*border: 1px solid #E5E5E5; */ /* Light gray border */
    /*box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); */ /* Soft shadow */
    padding: 0px; /* Inner padding */
    border-radius: 8px; /* Rounded corners */
    margin: 0 10px;
    padding-bottom: 81px;
}

    .tab-content.active {
        display: block;
    }
    .tab-content.hover {
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); /* Enhanced shadow on hover */
    }

/* Optionally, add styles for the tab content area */
#rank-tab-content {
   /* border: 1px solid #E7E7E7;*/
}
.rankText {
    line-height: 2rem;
    color: #007bff;
    font-weight: bold;
}

.logoA-homescreen {
    color: #007bff;
    left: 0;
}

#leaderboard-header {
    background: #ffffff;
    background-color: #FFFFFF;
    /*border: 1px solid #E5E5E5;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);*/
    padding: 0px;
    padding-top: 20px;
    border-radius: 8px;
    margin: 0;
    margin-bottom: 20px;
    /* sticky style*/
    position: sticky;
    top: 0;
    width: 100%;
    background-color: #fff;
    z-index: 1;
}

    #leaderboard-header > h1 {
        text-align: center;
        font-size: 1.5rem;
        padding: 10px;
        margin: auto;
        margin-bottom: 20px;
    }

    .username-search {
        display: flex;
        justify-content: center;
        margin-bottom: 15px;
    }

    .username-search input {
        padding: 10px;
        border: 1px solid #ccc;
        border-radius: 5px;
        width: 60%;
        margin-right: 10px;
    }

        .username-search button {
            padding: 10px;
            background-color: #007bff;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }
.leaderboard {
    padding: 10px;
    background-color: #ffffff;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #dcdcdc;
    padding: 10px 0 10px 10px;
}

    .leaderboard-item img {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        margin-right: 20px;
    }

.rank, .xp {
    font-weight: bold;
}

.sticky-row {
    position: sticky;
    bottom: 0;
    background: #fff;
    border-top: 2px solid #F5F5F5; 
    z-index: 10;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    /*from user-summary CSS*/
    background-color: #CDE7FF;
    /*    background-color: #FFD806; */
    position: sticky;
    bottom: 0px;
    line-height: 0.4rem;
}

.user-rank-card {
    display: flex;
    align-items: center;
    padding: 5px 20px;
    background-color: #CDE7FF;
    line-height: 1.2rem;
    border-top: 6px #f5f5f5 solid;
    position: fixed; /* Change to fixed */
    z-index: 1;
    bottom: 62px; /* Keep it at the bottom */
    left: 0; /* Align to the left */
    right: 0; /* Align to the right */
    margin: 0;
    padding: 10px 0;
    display: none; /* Keep this if you want to show/hide */
}


.highlight-row {
    background-color: #FFD806;
}

.user-summary {
    background-color: #CDE7FF;
    position: sticky;
    bottom: 44px;
    line-height: 0.4rem;
    padding: 20px 20px 2px 20px;
}

.username {
    color: #333; /* Darker text color */
    font-weight: bold;
    font-size: 1.4rem;
}

.stat-label {
    color: #666; /* Medium text color */
}

.bottom-nav {
    display: flex;
    justify-content: space-around;
    background-color: #ffffff;
    bottom: 0;
    width: 100%;
    position: fixed;
    border-top: 1px solid #ddd; /* Add a border to distinguish it from the content */
    padding: 10px 0;
}

.nav-button {
    background: none;
    border: none;
    font-size: 12px; /* Smaller text for a compact layout */
    padding: 5px 0;
    text-align: center;
    width: 20%; /* Ensure the buttons fit within 375px */
    color: #000;
}

    .nav-button i {
        font-size: 20px; /* Font Awesome icon size */
    }

    .nav-button span {
        display: block;
        font-size: 10px; /* Smaller text below the icon */
    }

/* drop down menu */
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    padding: 10px;
    z-index: 100; /* Higher z-index to appear on top */
    opacity: 0; /* Initial opacity for smooth transition */
    transition: opacity 0.2s; /* Smooth transition effect */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    width: 200px;
    border-radius: 4px;
    overflow: hidden;
}

    .dropdown-menu.active {
        display: block;
        opacity: 1; /* Full opacity when active */
    }

    .dropdown-menu button.menu-item {
        width: 100%;
        padding: 10px;
        text-align: left;
        border: none;
        background: none;
    }

        .dropdown-menu button.menu-item:hover {
            background-color: #f0f0f0;
        }

/* Basic styles to show/hide sections */
#appSection {
    display: none; /* Initially hidden */
    max-height: calc(100vh - 64px); /* to ensure the content scrolls above the fixed bottom nav menu,*/
    overflow: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#results {
    font-size: 1rem;
    color: red;
    margin: 20px;
    display: none; /*INFINITE_DISPLAY*/
}

/* Leaderboard CSS (rank.js) */
.leaderboard-item.winner {
    /*background-color: #cff3d6;*/ /* Light green background */
}


.rank-xp {
    font-size: 1.2rem;
    font-weight: bold;
    margin: 10px;
    display: inline-block;
    width: 100px; /* Adjust the width as needed */
    text-align: right;
}

.leaderboard-item {
    display: grid;
    grid-template-columns: 11px 16px 112px 92px 81px;
    align-items: center;
    gap: 10px; /* Add some gap between columns */
}

.rank {
    grid-column: 1;
}

.leaderboard-item img {
    grid-column: 2;
    width: 40px; /* Adjust image size as needed */
    height: 40px;
    border-radius: 50%;
}

.rank-username {
    grid-column: 4;
}

.rank-xp {
    grid-column: 3;
    text-align: right;
}

.rank-icon-container {
    grid-column: 5;
    color: green;
    font-weight: bold;
    text-align: center;
    line-height: 1rem;
}
    .rank-icon-container .fa-trophy {
        font-size: 1.0rem;
        color: red;
    }
    .rank-icon-container .fa-gift {
        font-size: 1.0rem;
        color: #777;
    }

    .winner-notification {
        grid-column: 5;
        color: green;
        font-weight: bold;
        background-color: #eee;
        padding: 10px;
        border-radius: 10px;
        text-align: center;
        font-size: 0.8rem;
        /*new stuff*/
        line-height: 1rem;
        margin-right: 12px;
        padding: 0px;
        /* border: 1px red dashed; */
        /*width: min-content;*/
        margin-left: 10px;
    }

.winner-group {
    border-radius: 10px;
    margin-bottom: 20px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.active-user {
    /* Styles for active user (e.g., highlight) */
}

.leaderboard-item.active-user img {
    border: 2px solid #F7DC6F; /* Golden color */
    border-radius: 50%;
    box-shadow: 0 0 5px 2px #F7DC6F; /* Golden color with some blur */
}

/* Styles for the tab container */
#leaderboard-tabs {
    display: flex;
    width: 100%;
    border-bottom: 2px solid #CDE7FF; /* Blue border for the tab container */
}

.tab-button {
    flex: 1;
    padding: 10px;
    text-align: center;
    border: 1px solid #CDE7FF;
    background-color: #E7F1FF; /* Softer blue background */
    color: #333;
    cursor: pointer;
    font-weight: bold;
}

    .tab-button.active {
        background-color: #CDE7FF; /* Active tab background color */
        color: #000; /* Active tab text color */
        border-bottom: 2px solid #CDE7FF; /* Blue border for active tab */
    }



.week-tabs {
    background: none;
    border: none;
    font-size: 0.8rem;
    padding: 5px 20px;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: baseline;
    position: sticky;
    top: 43px; /* Adjust the value to position it below the header */
    z-index: 1; /* Ensure it stays on top of other elements */
    background-color: #eaeaea;
    background-color: #ffffff;
    border-top: 1px #ccc solid;
}

.week-tab {
    background: none;
    border: none;
    padding: 0px 0px;
}

    .week-tab.active {
        font-weight: bold;
        color: #007bff;
        font-size: 1.1rem;
        border-bottom: 3px #007bff solid;
    }

#countdown-timer {
    text-align: center;
    display: block;
    color: gray;
}






.letter {
    display: inline-block; /* Ensure letters can be animated independently */
    position: relative; /* Allow for absolute positioning */
}




/* SPLASH SCREEN*/
#splashScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff; /* Change as needed */
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column; /* Stack items vertically */
    z-index: 1000;
}

@keyframes throb_old {
    0% {
        opacity: 1;
    }

    25% {
        opacity: 0.50;
    }

    50%% {
        opacity: 0.25;
    }

    75%% {
        opacity: 0.50;
    }

    100% {
        opacity: 1;
    }
}

@keyframes throb {
    0% {
        opacity: 1;
    }

    10% {
        opacity: 0.95;
    }

    20% {
        opacity: 0.8;
    }

    30% {
        opacity: 0.6;
    }

    40% {
        opacity: 0.05;
    }

    50% {
        opacity: 0.05;
    }

    55% {
        opacity: 0.2;
    }

    65% {
        opacity: 0.5;
    }

    75% {
        opacity: 0.8;
    }

    90% {
        opacity: 0.95;
    }

    100% {
        opacity: 1;
    }
}

/* Add this to your CSS to create the spinning animation */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading-spinner {
    border: 8px solid #f3f3f3; /* Light gray border */
    border-top: 8px solid #3498db; /* Blue color for spinner */
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    /* new */
    position: absolute;
    top: 57%;
    left: 50%;
    margin-left: -25px; /* margin-top: -25px; */
    animation: 1s linear 0s infinite normal none running spin;
    width: 50px;
    height: 50px;
}



.text-logo {
    width: 100%;
    text-align: center;
    position: relative; /* Make positioning relative for absolute children */
    font-family: Arial, sans-serif;
    margin: auto;
    color: #000000;
    font-size: 1.5rem;
}

.letter {
    display: inline-block; /* Ensure letters can be animated independently */
    position: relative; /* Allow for absolute positioning */
}

.logoA {
    font-size: inherit;
    color: #007bff;
    position: relative;
    left: 0%; /* Start off-screen to the right */
}

@keyframes bounceIn {
    0% {
        top: -20px;
    }

    20% {
        top: 15px;
    }

    40% {
        top: -5px;
    }

    60% {
        top: 5px;
    }

    80% {
        top: -2px;
    }

    100% {
        top: 0px;
    }
}

/* LOGO THROBING*/
#logo {
    position: relative; /* Ensure positioning for children */
}

    #logo img {
        width: auto; /* or fixed width */
        height: 5rem;

    }
    #logo .text-logo {
        height: 5rem; /* Adjust height as needed */
        display: block; /* Ensure block-level for centering */
        margin: 0 auto; /* Center horizontally */
    }

    /* Animate ∂ logo dropping in */
    #logo .partial-derivative-logo {
        height: 5rem; /* Keep this consistent with the main logo */
        position: absolute; /* Position it relative to the #logo container */
        left: calc(50% - 59px); /* Adjust as needed to overlap */
        top: 0; /* Align vertically */
        transform: translateX(-50%); /* Center it over the text logo */
        /*margin-left: -213px; */ /* Adjust as needed */
    }

/* Animate entire logo throbbing */
#logo {
    /*

    animation: throb 2s ease-in-out infinite;
    animation-delay: 3s;*/ /* Delay after bounceIn completes */
}



.next-button {
    padding: 12px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    width: 100%;
}

    .next-button:hover {
        background-color: #2980b9;
    }