* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    min-height: 100vh;
    background-image: url(image/background.jpg);
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

nav {
    background: rgba(255 255 255 0.13);
    backdrop-filter: blur(10px);
    padding: 1rem;
    width: 80%;
    left: 50%;
    transform: translateX(-50%);
    position: fixed;
    top: 2rem;
    border-radius: 30px;
    border: 1px solid rgba(255 255 255 0.5);
}

ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
}

a {
    text-decoration: none;
    color: white;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s ease;
}

a::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    background: white;
    bottom: 0;
    left: 50%;
    transition: all 0.3s ease;
}

a:hover::after {
    width: 100%;
    left: 0;
}

a:hover {
    color: white;
}