/* General page styles */
body {
    font-family: 'Segoe UI', sans-serif;
    background: #0d1117;
    color: #c9d1d9;
    margin: 0;
}

/* Header styling */
header {
    background: #161b22;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap; /* Prevent wrapping on desktop */
}

/* Logo styles */
header h1 {
    margin: 0;
    color: #58a6ff;
    white-space: nowrap; /* Keep logo on one line */
}

/* Navigation styles */
nav {
    display: flex;
    gap: 1rem; /* Space between links */
    flex-wrap: nowrap; /* Keep nav links on one line */
}

nav a {
    color: #58a6ff;
    text-decoration: none;
    font-weight: bold;
    white-space: nowrap;
    transition: color 0.3s ease;
    padding: 0.5rem 1.2rem;
    border-radius: 5px;
}

nav a:hover,
nav a:focus {
    color: #fff;
    background: #1f6feb;
}

/* Container for page content */
.container {
    max-width: 1000px; /* Wider max-width on desktop */
    margin: 2rem auto;
    padding: 2rem;
}

/* Mobile styles */
@media (max-width: 600px) {
    /* Allow header to wrap */
    header {
        flex-wrap: wrap;
        padding: 1rem 1rem;
    }

    /* Stack nav links vertically as big buttons */
    nav {
        flex-direction: column;
        gap: 0.7rem;
        width: 100%; /* full width nav */
        align-items: stretch;
        margin-top: 1rem;
    }

    nav a {
        display: block;
        width: 100%;
        background: #21262d;
        color: #58a6ff;
        padding: 1rem 0;
        text-align: center;
        font-size: 1.1rem;
        border-radius: 8px;
        margin: 0;
        box-sizing: border-box;
        border: 2px solid #30363d;
        transition: background 0.2s, color 0.2s;
    }

    nav a:hover,
    nav a:focus {
        background: #1f6feb;
        color: #fff;
    }

    /* Smaller padding on container */
    .container {
        padding: 1rem;
        margin: 1rem auto;
    }
}

.btn {
    display: inline-block;
    background: #238636;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    margin-top: 1rem;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn:hover,
.btn:focus {
    background: #2ea043;
}