header img {
    height: 50px;
    margin-left: 40px;
}

body {
    height: 125vh;
    background-image: url('https://wallpapers.com/images/hd/gradient-background-n5kitt31l1w0ugme.jpg');
    background-size: cover;
    font-family: Arial, sans-serif;
    margin-top: 80px;
    padding: 30px;
    background-color: #ffffff;
}

header {
    background-color: white;
    position: fixed;
	z-index: 1000;
    top: 0;
    left: 0;
    right: 0;
    height: 50px;
    display: flex;
    align-items: center;
    box-shadow: 0 0 25px 0 black;
    justify-content: space-between; /* Space between logo and nav */
}

nav {
    display: flex;
    align-items: center;
}

nav ul {
    list-style: none; /* Ensure no bullets */
    padding: 0; /* Remove default padding */
    display: flex; /* Horizontal layout */
}

nav li {
    margin: 20px;
    position: relative; /* For positioning the border */
}

nav li a {
    color: black;
    text-decoration: none;
    padding: 10px 15px; /* Add padding for better click area */
    border-radius: 25px; /* Rounded corners */
    transition: border 0.3s; /* Smooth transition for border */
}

nav li a:hover {
    color: black;
    border-color: orange;
    border: solid 2px orange; /* Add border on hover */
}

nav li a.active {
    background-color: transparent; /* Make background transparent */
    color: black; /* Optional: Contrast for text */
    font-weight: bold; /* Optional: Emphasize the active link */
    border: solid 2px purple; /* Keep the border for active state */
}

.menu-toggle {
    display: none; /* Hide by default */
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle .bar {
    height: 3px;
    width: 25px;
    background-color: black;
    margin: 3px 0;
}

/* Responsive Styles */
@media (max-width: 768px) {
    nav ul {
        display: none; /* Hide the menu by default */
        flex-direction: column; /* Stack vertically */
        position: absolute;
        top: 80px; /* Position below the header */
        left: 0;
        right: 0;
        background-color: white;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }

    nav ul.active {
        display: flex; /* Show the menu when active */
    }

    .menu-toggle {
        display: flex; /* Show the hamburger icon */
    }
}

section {
    margin-bottom: 40px;
    padding: 20px;
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

h3, h2, p {
    color: black;
}

.viewer {
    flex-grow: 1; /* Main content takes up remaining space */
    padding: 10px;
    background-color: black;
    color: gray;
    border: thin solid gray;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
}


footer {
    text-align: center;
    padding: 10px 0;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
}

/* salwa part css */
.container {
    text-align: center;
}

.skeleton {
    position: relative; /* Relative to the container for precise positioning */
    display: inline-block;
}

.info-box {
	position: absolute; /* Make the box positionable relative to the page */
	padding: 15px;
	border: 1px solid #ccc;
	border-radius: 5px;
	background-color: #fff;
	width: 350px;
	display: none;
	z-index: 100; /* Ensure it stays on top */
}

.skeleton img {
    width: 100%; /* Ensure the image resizes responsively */
    height: auto;
}

.highlight {
    position: absolute;
    background-color: rgba(255, 0, 0, 0);
    border-radius: 50%;
    pointer-events: auto;
    transform: translate(-50%, -50%); /* Center the highlight relative to its position */
}

.skull {
    top: 7%; /* Percentage relative to the image container */
    left: 26%; /* Percentage relative to the image container */
    width: 10%; /* Responsive size */
    height: 10%; /* Responsive size */
}

.rib {
    top: 26%; 
    left: 25%; 
    width: 19%; 
    height: 20%;
}

.humerus1 {
    top: 18%;
    left: 12%; 
    width: 1.8%; 
    height: 17%; 
    transform: rotate(19deg); 
}

.humerus2 {
    top: 20%;
    left: 34%; 
    width: 1.8%; 
    height: 17%; 
    transform: rotate(-8deg); 
}

.ulna1 {
    top: 32%; 
    left: 9%;
    width: 1.5%; 
    height: 17%; 
    transform: rotate(-6deg);
}

.ulna2 {
    top: 36%; 
    left: 36%;
    width: 1.2%; 
    height: 12%; 
    transform: rotate(-6deg);
}

.pelvis {
    top: 38%; 
    left: 19%; 
    width: 14.5%;
    height: 12%;
    transform: rotate(-6deg);
}

.femur1{
    top: 48%;
    left: 20%; 
    width: 1.5%;
    height: 20%;
    transform: rotate(-6deg);
}

.femur2{
    top: 48%;
    left: 31%; 
    width: 1.5%;
    height: 20%;
    transform: rotate(5deg);
}

.fibula{
    top: 70%;
    left: 18%;
    width: 1.1%;
    height: 18%;
    transform: rotate(-2deg);
}

.tibia1{
    top: 67%;
    left: 20%;
    width: 1.5%;
    height: 23%;
    transform: rotate(4deg);
}

.tibia2{
    top: 67%;
    left: 28%;
    width: 1.7%;
    height: 23%;
    transform: rotate(5deg);
}

.radius{
    top: 37%;
    left: 38%;
    width: 1%;
    height: 11%;
    transform: rotate(-8deg);
}

/* Quiz */
.app {
	width: 200%;
	max-width: 800px;
	margin: 100px auto 0;
	border-radius: 20px;
}

.app h1{
	text-align: center;
	font-family: "Times New Roman", Times, serif;
	font-size: 2.5rem;
	color: #001e4d;
	font-weight: bold;
	border-bottom: 1px solid #333;
}

h1 .subtitle {
    font-size: 1.5rem;
    color: #001e4d;
    font-weight: normal;
}

.quiz {
	padding: 20px 0;
}

.quiz h2 {
	font-size: 18px;
	color: #001e4d;
	font-weight: 600;
}

hr {
    border: 0;
    height: 1px;
    background: #ddd;
    margin: 20px 0;
}

/* Question Styling */
#question {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #001e4d;
    font-family: 'Math Sans', serif; 
}

.btn {
	background: #fff;
	color: #222;
	font-weight: 500;
	width: 100%;
	border: 1px solid #222;
	padding: 10px;
	margin: 10px 0;
	text-align: left;
	border-radius: 4px;
	cursor: pointer;
	transition: all 0.3s;
}

.btn:hover:not([disabled]) {
	background: #6639ad;
	color: #fff;
}

.btn:disabled {
	cursor: no-drop;
}

#next-btn {
	background: #001e4d;
	color: #fff;
	font-weight: 500;
	width: 150px;
	border: 0;
	padding: 10px;
	margin: 20px auto 0;
	border-radius: 4px;
	cursor: pointer;
	display: none;
}

.correct {
	background: #9aeabc;
}

.incorrect {
	background: #ff9393;
}


/* about */
#about {
    text-align: center;
    margin: 50px 0;
}

#team {
    text-align: center;
    margin: 50px 0;
}

.team-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.team-member {
    background-color: white;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 200px;
}

.team-member img {
        width: 150px;
        height: 150px;
        border-radius: 50%;
        margin-bottom: 15px;
}

.team-member h3 {
    font-size: 1.2em;
    margin-bottom: 5px;
    color: #001e4d;
}

.team-member p {
    font-size: 0.9em;
    color: #555;
}