/* General Styling */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

/* Header */
header {
    background: #2c3e50;
    color: white;
    padding: 20px;
    text-align: center;
}
header h1 {
    color: #09e04d;
    font-size: 28px;
    text-transform: uppercase;
    margin-top: 10px;
}

/* Navigation - Sticky & Centered */
nav {
    background: #2c3e50;
    padding: 10px 0;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
}
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
nav ul li {
    display: inline;
    margin: 0 15px;
}
nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 18px;
    padding: 12px 18px;
    border-radius: 5px;
    transition: 0.3s;
}
nav ul li a:hover {
    color: #3498db;

}

/* Main Container */
.container {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
    background: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

/* PVC Information Section */
.pvc-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
}
.pvc-info img {
    width: 40%;
    max-width: 300px;
    height: auto;
    border-radius: 8px;
}
.pvc-info .text {
    width: 55%;
    text-align: left;
}

/* PDF Section */
.pdf-section {
    text-align: center;
    padding: 20px;
}
.pdf-button {
    display: inline-block;
    padding: 12px 20px;
    background: #3498db;
    color: white;
    text-decoration: none;
    font-size: 18px;
    border-radius: 5px;
    transition: 0.3s;
    margin-top: 15px;
}
.pdf-button:hover {
    background: #2c3e50;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background: #487aac;
    color: white;
    margin-top: 20px;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .pvc-info {
        flex-direction: column;
        text-align: center;
    }
    .pvc-info img {
        width: 80%;
        margin-bottom: 15px;
    }
    .pvc-info .text {
        width: 100%;
    }
}