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

:root {
  --purple-200: #9a7bd1;
  --purple-500: #6b36c8;
  --purple-800: #441f88;
  --black-800: #171717;
  --gray-200: #cccccc;
  --white: #f9f9f9;
}

body {
  background: var(--gray-200);
  color: var(--black-800);
  font-family: sans-serif;
}

h1,
h2,
h3 {
  font-weight: 700;
}

h1 {
  color: var(--white);
  font-size: 2rem;
}

h2 {
  color: var(--black-800);
  font-size: 1.5rem;
  padding: 1rem 0;
  font-weight: 600;
}

h3 {
  color: var(--white);
  font-size: 1rem;
  text-align: center;
}

p {
  font-size: 1rem;
  line-height: 1.5rem;
  text-align: justify;
}

section {
  width: 90%;
  margin: 2rem auto;
}

header {
  background: var(--purple-800);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
}

nav a {
  color: var(--white);
  font-size: 1.1rem;
  text-decoration: none;
}

nav a:hover {
  color: var(--purple-200);
  text-decoration: underline;
}

#about article {
  display: flex;
  align-items: center;
  gap: 2rem;
}

#about img {
  width: 200px;
  flex-shrink: 0;
}

#about p {
  flex: 1;
}

#video figure {
  flex-direction: column;
  text-align: center;
}

footer {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  color: var(--white);
  background-color: var(--purple-500);
  font-weight: bold;
  text-align: center;
}

footer section {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
}

footer img {
  width: 2rem;
  height: 2rem;
  display: block;
  filter: invert(100%);
  transition: filter 0.3s;
}

footer img:hover {
  filter: brightness(0) saturate(100%) invert(65%) sepia(59%) saturate(2437%)
    hue-rotate(213deg) brightness(86%) contrast(88%);
}

.main_contato {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  width: 90%;
  margin: 2rem auto;
}

form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem;
  border-radius: 0.75rem;
}

form div {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

form input,
textarea {
  padding: 0.5rem;
  border-radius: 0.75rem;
  border: none;
  font-size: 1rem;
}

textarea {
  resize: none;
  height: 5rem;
}

form button {
  background: var(--purple-800);
  color: var(--white);
  padding: 0.75rem;
  border: 1px solid var(--purple-500);
  border-radius: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

form button:hover {
  background: var(--purple-500);
}

form span {
  color: #ff0000;
  font-size: 0.75rem;
}

.article_mapa {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  background: var(--white);
  padding: 1.5rem;
  border-radius: 0.75rem;
}

.article_mapa address {
  width: 75%;
}

.article_mapa address p {
  font-weight: 600;
}

.article_mapa iframe {
  align-self: center;
}

.h2_video {
  text-align: center;
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1rem;
    position: static; /* Remove o 'sticky' em telas pequenas */
  }

  #about article {
    flex-direction: column;
    text-align: center;
  }
  
  #about p {
    text-align: center;
  }

  /* Faz o formulário e o mapa ficarem um sobre o outro usando grid */
  .main_contato {
    grid-template-columns: 1fr;
  }

  /* Centraliza o vídeo e garante que ele não ultrapasse a tela */
  #video iframe {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
}