body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f5f5;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1em;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style-type: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 2em;
}

#header nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

#menu nav a {
    color: black;
    text-decoration: none;
    font-weight: bold;
}

iframe {
    align-items: center;
}

#mapa-container {
    margin: 2em;
}

#map {
    height: 400px;
    width: 100%;
    border: 2px solid #4CAF50;
    border-radius: 8px;
}

#trenes, #tranvias, #intro {
    margin: 2em;
}

#trenes, #tranvias, #intro h2 {
    color: #4CAF50;
}

#trenes, #tranvias, #intro p {
    margin: 2%; 
    color: black;
    font-size: 1.2vw;
    align-items: stretch;
    text-align: center;
}

.content-block {
    display: flex;
    flex-direction: row;
    margin-bottom: 1.5em;
    justify-content: center;
}

.content-block img {
    width: 30%;
    height: 100%;
    border-radius: 1em;
    margin-right: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.content-block p {
    background: #fff;
    padding: 1em;
    border-radius: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    color: black;
    font-size: 1.4vw;
    margin: 0;
    align-items: stretch;
    text-align: center;
    width: fit-content
}

.mapa-mitre, .mapa-tranvia {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
} 

.mapa-mitre img {
    width: 60%;
    height: 100%;
    border-radius: 1em;
    margin-right: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.mapa-tranvia img {
    width: 40%;
    height: 100%;
    border-radius: 1em;
    margin-right: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

#videos {
    display: flex;
    flex-wrap: wrap;
    gap: 2em;
    justify-content: center;
    margin: 2em 0;
}

#videos iframe {
    flex: 1 1 350px;
    max-width: 500px;
    min-width: 300px;
    aspect-ratio: 16 / 9;
    border-radius: 1em;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    border: none;
    background: #000;
}

.content-tram, .content-trenes {
    display: flex;
    flex-direction: row;
    margin-bottom: 1.5em;
    justify-content: center;
}

.content-tram img {
    width: 60%;
    height: 100%;
    border-radius: 1em;
    margin-right: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.content-tram p {
    background: #fff;
    padding: 1em;
    border-radius: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    color: black;
    font-size: 1.3vw;
    margin: 0;
    align-items: stretch;
    text-align: center;
    max-width: 40%;
}

.content-trenes img {
    width: 40%;
    height: 100%;
    border-radius: 1em;
    margin-right: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.content-trenes p {
    background: #fff;
    padding: 1em;
    border-radius: 1em;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    color: black;
    font-size: 1.3vw;
    margin: 0;
    align-items: stretch;
    text-align: center;
    max-width: 40%;
}