body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f7fa;
    color: #222;
}

header {
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: white;
    text-align: center;
    padding: 25px 10px;
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

nav {
    background-color: #1b1b1b;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 10px;
}

nav a {
    color: #00d4ff;
    text-decoration: none;
    font-weight: bold;
    padding: 8px 14px;
    border: 1px solid #00d4ff;
    border-radius: 6px;
    transition: 0.2s;
}

nav a:hover {
    background-color: #00d4ff;
    color: black;
}

section {
    max-width: 900px;
    margin: 30px auto;
    padding: 25px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

section h2 {
    margin-top: 0;
    padding-bottom: 5px;
}

footer {
    background-color: #1b1b1b;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 40px;
}

section:first-of-type {
    text-align: center;
    padding: 80px 20px;
}

section:nth-of-type(2) {
    text-align: left;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    border: 1px solid #333;
    padding: 10px;
    text-align: left;
}

th {
    background-color: #00bcd4;
    color: white;
}