:root {
    --primary-color: #d61640;
    --secondary-color: #1a8af3;
    --tertiary-color: #c79819;
    --highlight-color: #b6ad39;
    --text-color: #000;
    --light-bg: #fff;
    --shadow: 2px 3px 4px rgba(87, 87, 87, 0.4);
    --radius: 15px;
    --max-width: 900px;
    --font-base: Arial, sans-serif;
  }
  
  * {
    margin: 0;
    padding: 0;
    outline: none;
    box-sizing: border-box;
    font-size: 1rem;
    font-family: var(--font-base);
    font-weight: lighter;
  }
  
  body {
    display: flex;
    flex-direction: column;
    background: #bebebe;
  }
  
  img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius);
  }

  .s-servico{
    background-color: rgba(199, 199, 199, 0.4);
  }
  .s-design{
    background-color: rgb(175, 175, 175);
  }
  .s-inicio{
    background-color: rgba(0, 0, 0, 0.7);
    color:white;
  }
  
  /* Oculta títulos duplicados no layout */
  .font-zero {
    display: none !important;
  }
  
  /* Conteúdo geral */
  .contem {
    margin: 50px auto 0 auto;
    background-color: var(--light-bg);
    border-radius: var(--radius);
  }
  .video img{
    display: block;
    width: 100%;
  }

  .video{
    margin: 0 auto;
    text-align: center;
  }
  
  /* Títulos principais de seções */
  .titulo1, .titulo2, .titulo3, .titulo4 {
    font-size: 1.3rem;
    text-align: center;
    padding: 20px;
    margin: 0 auto;
    color: #ffffff;
    box-shadow: var(--shadow);
    /*background-color: #424141;*/
    position:sticky;
    top:0;
  }

  .titulo1{
    background-color: rgba(0, 0, 0, 0.8);
  }
  .titulo2{
    background-color: rgb(255, 255, 255);
    color: rgb(3, 96, 158);
  }
  .titulo3{
    background-color: rgba(223, 134, 19, 0.8);
  }
  
  .titulo4{
    background-color: rgba(16, 70, 131, 0.897);
  }
  
  
  /* Botão "Subir" fixo */
  .topo a {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px;
    background-color: var(--text-color);
    color: var(--light-bg);
    border-radius: 10px;
    z-index: 999;
  }
  
  /* FLEX Layout */
  .flex {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 50px 0;
  }
  
  .flex > article {
    flex: 1 1 200px;
    margin: 10px;
  }
  
  /* GRID 1 */
  .grid1 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: var(--max-width);
    padding: 10px;
    margin: auto;
  }
  
  .grid1 > div:nth-child(n+4) {
    background-color: #ccd4c3;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    align-items: center;
  }
  
  .anuncio {
    grid-column: 1;
    grid-row: 2 / 5;
  }
  
  /* GRID 2 */
  .grid2 {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 20px;
    max-width: var(--max-width);
    padding: 40px 0;
    margin: auto;
  }
  
  aside > article {
    margin-bottom: 10px;
  }
  
  /* GRID 3 */
  .grid3 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: var(--max-width);
    padding: 50px;
    margin: 0 auto 70px;
  }

  .grid4-item {
    display: grid;
    grid-template-rows: auto 1fr;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .grid4-item img{
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }
  .grid4-item p {
    padding: 10px;
    color: #fff;
    text-align: justify !important;
  }
  .grid4-item strong {
    padding: 10px 0;
    font-size: 1.7rem;
    color: #fff;
    font-weight: bold;
    text-align: center;
    background: rgba(255, 255, 255, 0.2);
  }

  
  .f-verde{
    background: rgba(10, 90, 16, 0.897);
  }
  .f-azul{
    background: rgba(16, 70, 131, 0.897);
  }
  .f-red{
    background: rgba(129, 14, 39, 0.897);
  }
  
  .grid3-item {
    display: grid;
    grid-template-rows: auto 1fr;
  }
  
  .grid3-item:nth-child(1) {
    grid-row: 1 / 3;
  }
  
  .grid3-item p {
    padding: 10px;
    color: #fff;
    background: rgba(0, 0, 0, 0.7);
    align-self: end;
  }
  
  /* Rodapé */
  footer {
    padding: 20px;
    background-color: beige;
    border-radius: var(--radius);
    max-width: 830px;
    margin: 40px auto;
    text-align: center;
  }
  
  /* Sobre */
  .sobre {
    text-align: center;
    margin: 30px auto;
    max-width: 500px;
  }

  .sobre > img{
    margin: 0 auto;
  }
  
  .sobre h1 {
    margin: 10px;
    padding: 15px 30px;
    color: #fff;
    background-color: #000;
    border-radius: 10px;
  }
  
  .sobre p {
    background-color: var(--light-bg);
    border-radius: var(--radius);
    text-align: justify;
    padding: 15px;
    text-indent: 10%;
  }
  
  /* RESPONSIVO */
  @media (max-width: 717px) {
    .grid1 {
      grid-template-columns: 1fr 1fr;
    }
  
    .grid1 > div:nth-child(n+4) {
      background-color: chocolate;
      color: #fff;
      display: block;
    }
  
    .anuncio {
      grid-row: 1;
      grid-column: 1 / 3;
    }
  
    .grid2 {
      grid-template-columns: 1fr;
    }
  
    aside {
        margin-top: 15px;
      display: flex;
      overflow-x: auto;
      gap: 20px;
      background-color: white;
    }
  
    aside > div {
      flex: 1 0 200px;
      margin: 0 10px;
      
    }
  }