img{
  border-radius: 10%;
}

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

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: #222;
  background-color: #fff;
  background-image: url(https://nebula.wsimg.com/b2cdfcbf923d624b6ea1cc4987cf0c10?AccessKeyId=7948507CADA3976E4232&alloworigin=1);
}


header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #111;
  color: #fff;
  padding: 1rem;
}

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

nav a {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
}

nav a:hover {
  color: cornflowerblue;
}


.hero {
  position: relative;
  text-align: center;
  color: white;
}

.hero img {
  width: 100%;
  height: auto;
  display: block;
  filter: brightness(0.6);
}

.hero h2 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
}


main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
}

section {
  background: #fafafa;
  padding: 1rem;
  border-radius: 5px;
  transition: transform 0.3s ease;
}

section:hover {
  transform: translateY(-5px);
}


footer {
  background-color: #111;
  color: #fff;
  text-align: center;
  padding: 1rem;
}


form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

label.required::after {
  content: " *";
  color: red;
}

input, textarea {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  padding: 0.7rem;
  background-color: cornflowerblue;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: cornflowerblue;
}


@media (max-width: 410px) {
  header, nav ul {
    flex-direction: column;
    text-align: center;
  }
  main {
    grid-template-columns: 1fr;
  }
}

#performance{
    height: fit-content;
    width: fit-content;
}
a{
  color: cornflowerblue;
}
a:hover{
  color: cornflowerblue;
}


.content {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.36s ease, padding 0.24s ease;
}


.collapsible,
.content {
  box-sizing: border-box;
  grid-column: 1 / -1;
}

.collapsible {
  background-color: navy;
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto 0.5rem auto;
  padding: 10px 18px;
  width: 100%;
  border: none;
  cursor: pointer;
  border-radius: 6px;
}

.collapsible::after {
  content: '\25BC'; 
  font-size: 0.9rem;
  transition: transform 0.24s ease;
  margin-left: 12px;
}

.collapsible.active {
  background-color: blue;
}

.collapsible.active::after {
  transform: rotate(180deg);
}
*{
  color: aliceblue;
}