body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #74ABE2, #5563DE);
    color: #fff;
}

header {
    background-color: rgba(0,0,0,0.6);
    padding: 20px;
    text-align: center;
    font-size: 2em;
    font-weight: bold;
    letter-spacing: 1px;
}

nav {
    display: flex;
    justify-content: center;
    background-color: rgba(0,0,0,0.4);
}

nav a {
    color: #fff;
    text-decoration: none;
    padding: 15px 25px;
    font-weight: bold;
}

nav a:hover {
    background-color: rgba(255,255,255,0.2);
    border-radius: 5px;
}

section {
    padding: 50px;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

h1,h2,h3 {
    margin-bottom: 20px;
    text-align: center;
}

input, button {
    padding: 10px;
    margin: 5px;
    border-radius: 5px;
    border: none;
    outline: none;
    font-size: 1em;
}

button {
    background-color: #FFC107;
    color: #000;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background-color: #FFA000;
}

table {
    border-collapse: collapse;
    width: 80%;
    margin-top: 20px;
    background-color: rgba(255,255,255,0.1);
}

th, td {
    border: 1px solid rgba(255,255,255,0.3);
    padding: 12px;
    text-align: center;
}

th {
    background-color: rgba(255,255,255,0.2);
    font-weight: bold;
}

tr:nth-child(even) {
    background-color: rgba(0,0,0,0.2);
}

footer {
    background-color: rgba(0,0,0,0.6);
    text-align: center;
    padding: 15px;
}