body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #0b132b;
    color: #ffffff;
}
a { color: #4fc3f7; text-decoration: none; }
a:hover { text-decoration: underline; }
header {
    background-color: #1f2a44;
    padding: 20px;
    text-align: center;
}
h1, h2, h3 { color: #ffffff; }
.container {
    width: 90%;
    max-width: 1000px;
    margin: 20px auto;
}
input, button, select, textarea {
    padding: 10px;
    margin: 5px 0;
    border-radius: 5px;
    border: none;
    width: 100%;
}
button {
    background-color: #4fc3f7;
    color: #0b132b;
    font-weight: bold;
    cursor: pointer;
}
button:hover {
    background-color: #3aa0d9;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
table, th, td {
    border: 1px solid #4fc3f7;
}
th, td {
    padding: 10px;
    text-align: left;
}
@media (max-width: 768px) {
    .container { width: 95%; }
    table, th, td { font-size: 12px; }
}