/* Global styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f6f8fa;
    color: #24292e;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
.header {
    background-color: #24292e;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

.header h1 {
    margin: 0;
    font-size: 32px;
}

/* Navigation Bar */
.navbar {
    background-color: #24292e;
    color: #fff;
    padding: 15px 0;
    text-align: center;
}

.navbar a {
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #c8e1ff;
}

/* Registration Form */
.registration-form {
    width: 100%;
    max-width: 500px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 6px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.registration-form h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 28px;
    color: #24292e;
}

.registration-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #24292e;
}

.registration-form input[type="text"],
.registration-form input[type="password"],
.registration-form input[type="number"],
.registration-form input[type="submit"] {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 16px;
}

.registration-form input[type="submit"] {
    background-color: #24292e;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.registration-form input[type="submit"]:hover {
    background-color: #0366d6;
}

/* Footer */
.footer {
    background-color: #24292e;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

/* Responsive layout */
@media screen and (max-width: 600px) {
    .container {
        width: 95%;
    }
}