* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;

}

body {
    background: #90b9d4;
    color: #333;
    line-height: 1.6;
    font-size: 16px;
}

header {
    background: linear-gradient(90deg, #1e3c72, #2a5298);
    color: white;
    padding: 40px 20px 20px 20px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.7);
}

#heading h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

#heading sub {
    font-size: 1rem;
    color: #c0d3f0;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}

nav ul li {
    background: #ffffff;
    color: #1e3c72;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s, color 0.3s;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.7);
}

nav ul li:hover {
    background: #90b9d4;
    color: white;
}

a {
    color: #2a5298;         
    text-decoration: none;  
    font-weight: bold;
}

a:hover {
    color: #1e3c72;         
    text-decoration: underline;
}

main {
    padding: 40px 20px;
    max-width: 900px;
    margin: auto;
}

#content p {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    font-size: 1.1rem;
    line-height: 1.8;
}
strong, b {
    color: #1e3c72;
}

abbr {
    text-decoration: none;
    border-bottom: 1px dotted #666;
    cursor: help;
}

footer {
    background: #1e3c72;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    clip-path: polygon(0 0, 100% 10%, 100% 100%, 0% 100%);
}

#ending q {
    font-style: italic;
    font-size: 1.1rem;
}

#ending small {
    display: block;
    margin-top: 10px;
    font-size: 0.9rem;
    color: #a2b9da;
}