body {
    margin: 40px;
    min-height: 100vh;
    background: radial-gradient(circle at 90% 70%, rgb(0, 136, 106), transparent 60%),
                radial-gradient(circle at 70% 20%, rgb(16, 141, 0), transparent 60%),
                linear-gradient(to bottom right, #0d0d0d, #1a1a1a);
    background-blend-mode: overlay;
    color: #e0e0e0;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 21px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}



p {
    padding: 20px;
}

a {
    text-decoration: none;
    color: white;
    transition: color 0.3s;
}

a:hover {
    color: #45a049;
}

header {
    display: flex;
    min-height: 70px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.15); 
    backdrop-filter: blur(10px);
    border: 3px solid #45a049;
    justify-content: space-between;
    align-items: center;
    padding: 10px 30px;
    width: 100%;

    box-shadow: inset 0 -2px 4px rgba(0, 0, 0, 0.4), 0 4px 20px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    border-right: 2px solid rgba(255, 255, 255, 0.2);
    padding-right: 20px;
}

.logo img {
    height: 50px;
    margin-right: 10px;
}

nav a {
    position: relative;
    color: white;
    font-weight: 600;
    padding: 10px 0;
    margin: 0 15px;
    transition: color 0.3s ease;
    letter-spacing: 1px;
    border-bottom: 2px solid rgba(69, 160, 73, 0.4); /* línea verde tenue en estado normal */
}

nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    height: 2px;
    width: 0;
    background-color: #45a049; /* verde brillante al hacer hover */
    transition: width 0.3s ease;
}

nav a:hover {
    color: #45a049;
}

nav a:hover::after {
    width: 100%;
}



#btnDescargar {
    background-color: #2c8d31;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 12px;
    border: 2px solid #45a049;
    transition: background-color 0.3s, color 0.3s;
}

#btnDescargar:hover {
    background-color: transparent;
    color: #45a049;
    border: 2px solid #45a049;
}

h1 {
    padding: 10px;
    color: #ffffff;
    font-size: 36px;
    margin-bottom: 20px;
}

.ilustraciones {
    max-width: 90%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 255, 170, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin: 20px 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

footer {
    margin: 20px;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.05);
    color: #aaaaaa;
    font-size: 14px;
    border-top: 1px solid #333;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    width: 100%;
}


.contenedor-inicio {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 40px;
    text-align: left;
}

.mockup-lado {
    flex: 1;
    max-width: 400px;
}

.texto-lado {
    flex: 1;
    max-width: 600px;
}

.texto-lado p {
    padding: 10px 0;
}

@media (max-width: 768px) {
    .contenedor-inicio {
        flex-direction: column;
        text-align: center;
    }

    .mockup-lado,
    .texto-lado {
        max-width: 100%;
    }
}

@media (max-width: 450px) {
    body {
        margin: 0px;
        font-size: 14px;
    }

    header {
        border-radius: 0px;
        padding: 10px;
    }

    #imgHeader {
        margin: 20px;
    }
}