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

/* Global Styles */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f2f2f2;
    color: #333;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto 1fr auto; /* Header, content, footer */
    min-height: 100vh;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    grid-column: 1 / -1; /* Span all columns */
}

.header-title {
    margin-left: 20px; /* Adjust margin as needed */
}

nav {
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline-block;
    margin-right: 40px; /* Adjust spacing between links */
}

nav ul li:last-child {
    margin-right: 0; /* Remove margin from last link */
}

nav ul li a {
    text-decoration: none;
    color: #fff;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #007bff;
}

/* Active link style */
.nav-link.active {
    color: #999;
    pointer-events: none;
    cursor: default;
}

/* Section */
section {
    padding: 40px 0;
    grid-column: 2; /* Centered content */
}

/* Footer */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    grid-column: 1 / -1; /* Span all columns */
}

/* Additional Styles */
.shaded-block {
    background-color: #f9f9f9;
    padding: 40px 0;
    text-align: center;
}

.achievements {
    text-align: left;
    margin: 0 auto;
}

.achievement-year {
    margin-bottom: 30px;
}

.achievement-year h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.achievement-year ul {
    padding-left: 20px;
}

.achievement-year ul li {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.shaded-block p {
    background-color: #333;
    color: #fff;
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    margin-bottom: 20px;
}

/* Card */
.card {
    width: 300px;
    height: 200px;
    perspective: 1000px;
    margin: 20px auto; /* Adjusted margin */
    background-color: #fff; /* Adjusted background color */
    border-radius: 10px; /* Adjusted border radius */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* Adjusted box shadow */
    cursor: pointer; /* Added pointer cursor */
    transition: transform 0.5s, box-shadow 0.5s; /* Added transition */
}

.card:hover {
    transform: translateY(-5px); /* Adjusted hover effect */
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2); /* Adjusted hover effect */
}

.card-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.999s;
}

.card:hover .card-inner {
    transform: rotateY(180deg);
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 24px;
}

.card-front {
    background-color: #333; /* Adjusted to match the theme */
    color: #fff;
    transform: rotateY(0deg);
}

.card-back {
    background-color: #5f5f5f; /* Adjusted to match the theme */
    color: #fff;
    transform: rotateY(180deg);
}