:root {
  --dk-blue: #055E72;
  --lt-blue: #499B9A;
  --off-white: #E2E3C7;
  --orange: #E4AC32;
  --red: #CB5439;
  --font-color: #222;
  --max-width: 1280px;
}


body {
  margin: 0;
  font-family: 'Raleway', Arial, sans-serif;
  font-size: 1rem;
  color: var(--font-color);
  background-color: var(--off-white);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}


.container,
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem;
  background-color: var(--off-white);
}


header {
  background-image: url("images/swiss-valley.jpg");
  background-size: cover;
  background-position: center;
  height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--dk-blue);
  position: relative;
  font-weight: bold;
}

header::after {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

header h1,
header nav {
  position: relative;
  z-index: 2;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

/* Nav */
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 3rem;
  padding: 0;
  margin: 1rem 0 0;
}

nav a {
  text-decoration: none;
  color: var(--dk-blue);
  font-weight: 700;
}

nav a:hover,
nav a:focus {
  color: var(--orange);
}


#top {
  max-width: 700px;
  margin: 2rem auto;
  text-align: center;
}

#top h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

#top p {
  line-height: 1.6;
}


.image-section-wrapper {
  display: flex;
  gap: 2rem;
  justify-content: center;
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 1rem;
}

.image-section {
  flex: 1;
  max-width: 600px;
  text-align: center;
}

.image-section img {
  margin-bottom: 1rem;
}

.image-section h3 {
  margin: 0.5rem 0;
}

.image-section p {
  line-height: 1.5;
}


main h2,
main p {
  text-align: center;
}

main img {
  width: 100%;
  max-width: 600px;
  margin: 2rem auto;
}


form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr 1fr 1fr ;
  column-gap: 2rem;  
  align-items: start;
  max-width: 900px;
  margin: 0 auto 2rem;

}


form .full-name {
  grid-column: 1;
  grid-row: 1;
}

form .email {
  grid-column: 1;
  grid-row: 2;
}

form .phone {
  grid-column: 1;
  grid-row: 3;
}

form .contact-method {
  grid-column: 2;
  grid-row: 1;
}

form .comments {
  grid-column: 2;
  grid-row: 2;
}

form .submit {
  grid-column: 2;
  grid-row: 3;
  justify-self: normal;
}


form div,
form fieldset {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
}


form fieldset {
  border: 1px solid var(--orange);
  padding: 1rem;
}


input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--red);
  border-radius: 4px;
  font-family: inherit;
}

form textarea {
  min-height: 100px;
}


input:focus,
textarea:focus {
  border-color: var(--lt-blue);
  outline: none;
}

input:invalid,
textarea:invalid {
  border-color: var(--red);
}


form .submit button {
  background-color: var(--dk-blue);
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
}

form .submit button:hover,
form .submit button:focus {
  background-color: var(--lt-blue);
}


footer {
  background-color: var(--lt-blue);
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  font-weight: bold;
}


@media (max-width: 800px) {
  .image-section-wrapper {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 700px) {
  form {
    grid-template-columns: 1fr;
  }

  form .full-name,
  form .email,
  form .phone,
  form .contact-method,
  form .comments,
  form .submit {
    grid-column: 1;
  }

  form .submit {
    justify-self: stretch;
  }
}