*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CONTENEDOR GENERAL */
#contenedor{
    width: 1366px;
    height: 1400px;
    background: #f5f5f5;
    margin: 0.5em auto;
    padding: 0.5em;
}

/* HEADER */
#header{
    height: 15%;
    background: linear-gradient(to right, black, #2c2c2c, red);
    border-radius: 1em;
    margin: 1em;
    padding: 20px;
    color: white;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;

    box-shadow: 0px 5px 15px gray;
}

/* MENU */
#menu{
    list-style: none;
    display: flex;
    gap: 20px;
}

#menu li{
    position: relative;
}

#menu a{
    text-decoration: none;
    color: white;
    font-weight: bold;
    padding: 8px 12px;
    border-radius: 8px;
    transition: 0.3s;
    font-size: 20px;
}

#menu a:hover{
    background: red;
    color: white;
    box-shadow: 0px 3px 8px gray;
}

/* SUBMENU */
.submenu{
    display: none;
    position: absolute;
    top: 35px;
    left: 0;
    background: red;
    border-radius: 8px;
    padding: 10px;
    z-index: 100;
}

#menu li:hover .submenu{
    display: block;
}

.submenu a{
    display: block;
    color: white;
    padding: 8px;
}

/* NAV */
#nav{
    height: 10%;
    background: linear-gradient(to right, #444, #888);
    border-radius: 2em;
    margin: 1em;

    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;

    box-shadow: 0px 5px 15px gray;
}

/* CIRCULOS */
.circulo{
    width: 90px;
    height: 90px;
    background: red;
    border-radius: 50%;

    display: flex;
    justify-content: center;
    align-items: center;

    transition: 0.3s;
}

.circulo:hover{
    transform: scale(1.1);
    background: black;
    box-shadow: 0px 0px 15px red;
}

/* CONTENIDO */
#contenido{
    height: 53%;
    background: #f5f5f5;
    margin: 1em;
}

/* SECTION */
#section{
    height: 95%;
    width: 70%;
    background: #dcdcdc;
    border-radius: 1em;
    float: left;
    margin: 1em;
    padding: 20px;

    box-shadow: 0px 5px 15px gray;
}

/* CUADROS */
.cuadros, .cuadro{
    height: 43%;
    width: 45%;
    background: #ff4d4d;
    color: white;
    border-radius: 1em;
    float: left;
    margin: 1em;
    padding: 15px;

    transition: 0.3s;

    box-shadow: 0px 4px 10px gray;
}

.cuadros:hover,
.cuadro:hover{
    transform: scale(1.03);
    background: #cc0000;
}

/* IMAGENES */
.cuadros img,
.cuadro img{
    border-radius: 10px;
    margin-top: 10px;
}

/* TEXTO MOTOS */
.cuadros h3,
.cuadro h3{
    margin-top: 10px;
    font-size: 28px;
}

.cuadros p,
.cuadro p{
    font-size: 24px;
    margin-top: 5px;
}

/* ASIDE */
#aside{
    height: 95%;
    width: 22%;
    background: #2c2c2c;
    color: white;
    border-radius: 1em;
    float: right;
    margin: 1em;
    padding: 20px;

    box-shadow: 0px 5px 15px gray;
}

#aside h2{
    color: orange;
    margin-bottom: 20px;
    font-size: 25px;
}

#aside p{
    font-size: 20px;
    margin-bottom: 20px;
}

/* FOOTER */
#footer{
    height: 15%;
    background: black;
    color: white;
    border-radius: 1em;
    margin: 1em;
    text-align: center;
    padding-top: 40px;

    box-shadow: 0px 5px 15px gray;
}

#footer h3{
    font-size: 24px;
}