style.css

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

* {
    max-width: 100%;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

section {
    scroll-margin-top: 140px;
}

:root {
 --cor1: #9d0a0a;
 --cor2: #fff;
 --corh: #1f1f1f;
 --corbg: #3d3c3c;
}

body {
    font-family: "Poppins", Arial, Helvetica, sans-serif;
    overflow: hidden;
    background-color: var(--corbg);
}

header {
    z-index: 100;
    position: fixed;
    width: 100%;
    background-color: var(--corh);
    top: 0;
    border-bottom: solid 3px;
    border-color: var(--cor1);
}

.cabecalho {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

nav li {
    display: inline-block;
    margin: 0 0 0 15px;
}

nav a {
    color: var(--cor2);
    text-decoration: none;
    font-weight: 600;
    font-size: large;
    position: relative;
}

nav a::after {
	content: " ";
	width: 0%;
	height: 3px;
	background-color: var(--cor1);
	position: absolute;
	bottom: 0;
	left: 0;
	transition: 0.5s ease-in-out;
}


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

.logo {
    width: 10%;
}

.desc {
    margin: -23px 10% 30px 14%;
    font-size: 10px;
    color: var(--cor2);
}

.swhite {
    width: 70%;
    margin: 0 10% 30px 15%;
    display: flex;
}

.sred1 {
    width: 75%;
    margin: 7% 10% 30px 13%;
    background-color: var(--cor1);
    box-shadow: 0 0 10px black;
    border-radius: 20px;
    display: flex;
}

.sred1 img {
    width: 35%;
    border-radius: 20px;
} 

.sred {
    width: 75%;
    margin: 0 10% 30px 13%;
    background-color: var(--cor1);
    border-radius: 20px;
    box-shadow: 0 0 10px black;
    display: flex;
}

.sred img {
    width: 35%;
    border-radius: 20px;
}

.espaco {
    width: 70%;
    margin: 0 10% 30px 15%;
    box-shadow: 0 0 10px black;
    border-radius: 20px;
    display: flex;
    background-color: #777777;
}

.imgtest {
    width: 35%;
    object-fit: cover;
}

.imgofi {
    width: 35%;
    margin-left: 0;
    object-fit: cover;
}

.imgemp {
    width: 35%;
    margin-left: 0;
    object-fit: cover;
}

.paragrafo {
    padding: 10px;
    margin: 10px;
    color: var(--cor2);
    line-height: 1.5;
    font-weight: 600;
}

.paragrafo h1 {
    font-size: xx-large;
    margin: 0 0 5px 4px;
    border-bottom: solid 4px;
    border-color: var(--cor2);
}

.paragrafo2 {
    width: 100%;
    padding: 10px;
    margin: 0 10% 0 6%;
    color: var(--cor2);
    line-height: 1.5;
    font-weight: 600;
}

.paragrafo2 h1 {
    width: 100%;
    margin: 0 0 5px 2%;
    font-size: xx-large;
    border-bottom: solid 4px;
    border-color: var(--cor1);
}

.titulo {
    padding: 0 0 2px 0;
    margin: 10px 0 -3px 2%;
    font-size: xx-large;
    border-bottom: solid 4px;
    border-color: var(--cor1);
}

.titulo h1 {
    color: var(--cor2);
}

.titulo2 {
    padding: 0 0 2px 0;
    margin: 10px 0 -3px 2%;
    font-size: xx-large;
    border-bottom: solid 4px;
    border-color: var(--cor1);
}

.titulo2 h1 {
    color: var(--cor2);
}

.titulo3 {
    width: 74%;
    padding: 0 0 2px 0;
    margin: 0 0 2% 13%;
    border-bottom: solid 4px;
    border-color: var(--cor1);
}

.titulo3 h1 {
    color: var(--cor2);
    font-size: xx-large;
}

.boxs {
    margin-left: 6%;
    margin-bottom: 2%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.box1, .box2, .box3 {
    width: 25%;
    margin-right: 5%;
    text-align: center;
    border-radius: 10px;
}

.box1 img, .box2 img, .box3 img {
    box-shadow: 0 0 10px black;
    border-radius: 10px;
}

.certificado {
    width: 60%;
    margin: -10px 0 2% 20%;
    border-radius: 10px;
    box-shadow: 0 0 10px black;
}

footer {
    text-align: center;
    padding: 20px 0;
    border-top: solid;
    border-color: var(--cor1);
    background-color: var(--corh);
}

footer p {
    font-size: 10px;
    margin-bottom: 6px;
    color: var(--cor2);
}

.adress {
    font-size: 12px;
    margin-top: 5px;
}

.logoft {
    width: 5%;
}