body {
    font-family: 'Roboto', sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-top: 80px; /* Espacio para el nav fijo */
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(52, 58, 64, 0.9); /* Fondo con transparencia */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    margin-top: 20px;
}

header nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    margin-top: 5px;
}
.nav-title {
    color: #ffffff;
    font-size: 20px;
    font-weight: bold;
    margin-left: 0px;
}

header nav img {
    height: 55px;
   
}

.menu-horizontal {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.menu-horizontal > li {
    position: relative;
}

.menu-horizontal > li > a {
    color: #ffffff;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    transition: background-color 0.3s;
}

.menu-horizontal > li > a:hover {
    background-color: rgba(73, 80, 87, 0.9);
}

.menu-vertical {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: rgba(73, 80, 87, 0.9); /* Fondo con transparencia para submenús */
    list-style-type: none;
    margin: 0;
    padding: 0;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.menu-vertical li a {
    color: #ffffff;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    transition: background-color 0.3s;
}

.menu-vertical li a:hover {
    background-color: rgba(52, 58, 64, 0.9);
}

.menu-horizontal > li:hover .menu-vertical {
    display: block;
}

main {
    flex: 1;
    padding: 20px;
}

footer {
    width: 100%;
    background: #a9adaf;
    height: 50px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;

}

footer h3 {
    margin: 0;
    color: rgb(255, 255, 255);
    font-size: 20px;
    line-height: 50px; 
    margin-bottom: 5px;/* Ajusta esto según la altura del footer */
}