body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #0d1117; 
    color: #c9d1d9; 
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

header {
    background-color: #161b22; 
    color: white;
    padding: 15px 0;
    margin-bottom: 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    color: #58a6ff; 
    margin: 0;
    font-weight: 700;
}

.nav-button {
    background-color: #58a6ff; 
    color: #0d1117; 
    padding: 10px 18px;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    transition: background-color 0.2s;
    font-weight: 600;
}

.nav-button:hover {
    background-color: #79c0ff; 
}

h2 {
    color: #58a6ff; 
    margin-bottom: 25px;
    border-bottom: 2px solid #21262d;
    padding-bottom: 5px;
}

.post-card {
    background-color: #161b22; 
    padding: 25px;
    border-radius: 15px; 
    border: 1px solid #30363d; 
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    margin-bottom: 25px;
    transition: border-color 0.3s;
}

.post-card:hover {
    border-color: #79c0ff; 
}

.post-card h2 {
    color: #79c0ff; 
    margin-top: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.post-card p {
    color: #a0a8b3;
}

.post-card a, .btn-back {
    color: #58a6ff; 
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.post-card a:hover, .btn-back:hover {
    color: #c9d1d9;
}

#add-post-form input[type="text"],
#add-post-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #30363d;
    background-color: #0d1117;
    color: #c9d1d9;
    border-radius: 6px;
    box-sizing: border-box;
}

#add-post-form label {
    color: #c9d1d9;
}

.btn-primary, .btn-danger {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: white;
    margin-right: 10px;
    font-weight: bold;
}

.btn-primary {
    background-color: #2ea44f;
}

.btn-danger {
    background-color: #f85149; 
}



.post-date {
    color: #777;
    font-size: 0.9em;
    margin-bottom: 20px;
    border-bottom: 1px solid #21262d;
    padding-bottom: 10px;
}

.post-content {
    background-color: #161b22;
    padding: 20px;
    border-radius: 10px;
    white-space: pre-wrap;
    
    word-wrap: break-word; 
    overflow-wrap: break-word;
}