/* General */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: #333;
    background-color: #f7f7f7;
}

.top-bar {
    background-color: #333;
    color: white;
    font-size: 14px;
    text-align: center;
    padding: 0.1px 0;
    line-height: 0.3;
    z-index: 1000;
    position: fixed;
    width: 100%;
    top: 0;
}

header {
    background: linear-gradient(rgba(51, 51, 51, 0.8), rgba(51, 51, 51, 0));
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 25px;
    z-index: 999;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.2);
}

.logo-container img {
    height: 50px;
    margin-left: 20px;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
    margin-right: 30px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 16px;
    font-weight: bold;
    transition: color 0.3s ease;
}

nav ul li a.active, nav ul li a:hover {
    color: #ffcc80;
}

.quality-parameters {
    text-align: center;
    margin: 120px auto;
    max-width: 900px;
}

.quality-parameters h1 {
    font-size: 2.5rem;
    color: #f57c00;
    margin-bottom: 5px;
}

.quality-parameters .year-link {
    color: #f57c00;
    font-weight: bold;
    text-decoration: none;
    font-size: 1.2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 10px;
    margin-top: 30px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

table th {
    background-color: #f57c00;
    color: white;
    padding: 10px;
    text-align: left;
}

table td {
    padding: 10px;
    border: 1px solid #ddd;
}

table td a {
    color: #007bff;
    text-decoration: none;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 15px 0;
    margin-top: 50px;
}


/* Asegura que el footer quede al fondo si hay poco contenido */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
}