body {
    font-family: Arial, sans-serif;
    font-size: 18px;
    line-height: 1.6;
}

nav {
    position: fixed;
    width: 100%;
    background-color: #ffffff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 0;
}

nav ul li {
    display: inline;
}

nav ul li a {
    text-decoration: none;
    color: #0077cc;
    padding: 10px 15px;
    transition: color 0.3s;
}

nav ul li a.active {
    font-weight: bold;
    border-bottom: 2px solid #0077cc;
}

nav ul li a:hover {
    color: #005fa3;
}

main {
    padding-top: 60px;
    text-align: center;
}

.content {
    display: none;
    padding: 20px;
}

.content.active {
    display: block;
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

section#roles article {
    border-radius: 12px;
    border: 4px solid;
    padding: 16px;
    margin: 24px auto;
    max-width: 600px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    color: #222;
    transition: transform 0.3s;
}

section#roles article:hover {
    transform: scale(1.02);
}

/* Colores coordinados con el borde (versión clara para fondo) */
section#roles article:nth-of-type(1) {
    border-color: #FF6B6B;
    background-color: #ffe5e5;
}

section#roles article:nth-of-type(2) {
    border-color: #6BCB77;
    background-color: #e4f7e7;
}

section#roles article:nth-of-type(3) {
    border-color: #4D96FF;
    background-color: #e1efff;
}

section#roles article:nth-of-type(4) {
    border-color: #FFC75F;
    background-color: #fff3d5;
}

section#roles article:nth-of-type(5) {
    border-color: #B967FF;
    background-color: #f3e6ff;
}