* {
    box-sizing: border-box;
}

body {
    background-color: hsl(289, 67%, 90%);
    margin: 0;
    padding: 20px;
    font-family: sans-serif;
}

header.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: hsl(290, 100%, 98%);
    margin-block-start: 0%;
    border-radius: 4em;
    padding: 10px 30px;
    width: 100%;
}

figure.materia {
    margin: 0;
    padding: 0;
    background-color: transparent;
}

.materia2 { 
    display: block;
    border-radius: 4em;
    padding: 1%;
}

.nav-buttons {
    display: flex;
    gap: 12px;
    background-color: transparent;
}

.nav-btn {
    background-color: #FFFFFF;
    color: #5C2D46;
    border: 1px solid #E6A8B8;
    border-radius: 30px;
    padding: 8px 24px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    font-family: sans-serif;
    transition: background-color 0.2s ease;
}

.nav-btn:hover {
    background-color: #FCE4EC;
}

main {
    text-align: center;
    padding: 20px 0;
}

h1 {
    font-size: 2em;
    font-family: monospace;
    color: hsl(252, 48%, 21%);
}

.galeria-cuadros {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    margin-top: 40px;
    padding: 0 10px;
}

.galeria-cuadros article {
    width: 100%;
    max-width: 800px;
    background-color: #FFFFFF;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.galeria-cuadros img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    display: block;
}

@media (max-width: 768px) {
    header.navbar {
        flex-direction: column;
        gap: 15px;
        border-radius: 2em;
        padding: 15px 20px;
    }

    .nav-buttons {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .nav-btn {
        padding: 6px 16px;
        font-size: 14px;
    }

    h1 {
        font-size: 1.6em;
    }

    .materia2 {
        max-width: 100%;
        height: auto;
    }
}