html {
    overflow-y: scroll;
}

body {
    margin: 0;
    padding: 20px;
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.5;
}

h1 { 
    color: #2c3e50; 
    font-weight: 700;
    font-size: 2.5rem;
    text-align: center;
}

p {
    text-align: center;
    color: #6c757d;
    margin-bottom: 30px;
}

.container-image {
    max-width: 900px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.05);
    margin: 0 auto;
}

.image-wrapper {
    text-align: center;
    border: 1px solid #dee2e6;
    padding: 10px;
    border-radius: 8px;
    background: #fff;
}

.img-responsive {
    max-width: 40%;
    height: auto;
    border-radius: 5px;
    display: block;
    margin: 0 auto;
}

.navbar {
    background-color: #2c3e50;
    padding: 15px 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    width: 100%;
}

.navbar a {
    text-decoration: none;
    color: white;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    font-weight: 600;
    padding: 10px 20px;
    margin: 0 10px;
    border-radius: 5px;
    transition: background 0.3s;
}

.navbar a:hover {
    background-color: #34495e;
}

.navbar a.active {
    background-color: #0d6efd;
    color: white;
}