@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
}
.headerPage {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}
[data-header-info] {
  display: none;
}

.activeH[data-header-info] {
  display: block;
}
html,
body {
  height: 100%;
  width: 100%;
  overflow: hidden;
}

li,
a,
p,
option {
  font-family: "Montserrat", sans-serif;
  font-weight: 500;
  font-size: 1.1rem;
  text-decoration: none;
  list-style: none;
}

.header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 20px 10%;
  background-color: white;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  flex-shrink: 0;
  z-index: 100;
}
.header .logo {
  display: flex;
  flex-direction: row;
}

.header .logo p {
  font-size: 3rem;
}
.header .logo .one {
  color: rgb(239, 29, 2);
}
.header .logo .two {
  color: rgb(11, 203, 232);
}

.header .logo .three {
  color: rgb(151, 22, 201);
}

.headerMenu {
  display: flex;
  justify-content: space-around;
  flex-direction: row;
  align-items: center;
  padding: 5px;
}
.headerMenu span {
  padding: 0.7rem;
  margin: 0.5rem;
  width: 8rem;
  color: black;
  cursor: pointer;
  font-size: large;
}

.headerMenu span:hover {
  color: white;
  border: 1;
  padding: 0.7rem;
  border-radius: 0.2rem;
  background-image: linear-gradient(
    to left,
    rgba(10, 211, 242, 0.6) -26.48%,
    rgba(154, 71, 232, 0.6) 73.52%
  );
  transition: ease-in-out 0.2s;
}
span.activeHeader {
  color: white;
  border: 1;
  padding: 0.7rem;
  border-radius: 0.2rem;
  background-image: linear-gradient(
    to left,
    rgba(10, 211, 242, 0.6) -26.48%,
    rgba(154, 71, 232, 0.6) 73.52%
  );
  transition: ease-in-out 0.2s;
}
.header-content {
  width: 100%;
  flex-grow: 1;
  height: 0;
  overflow: hidden;
}
.header-content__head {
  width: 100%;
  height: 100%;
  overflow-y: auto;
}
.header-content__head#header_3 {
  overflow: hidden;
}
.Algorithms {
  height: 100%;
}
.Home {
  height: 100%;
}
.Introduction {
  height: 100%;
}
.Help {
  height: 100%;
}
.Feedback {
  height: 100%;
}

.feedback-section {
  position: absolute;
  height: 100%;
  width: 100%;
  background: url();
}

.feedback-container {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 8px;
}

.feedback-container form {
  width: 100%;
  text-align: center;
  padding: 150px 150px;
}

form h1 {
  padding: 10px 0;
  font-size: xx-large;
}

form .feedback {
  position: relative;
}

.feedback i {
  position: absolute;
  font-size: 20px;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
}

form input {
  width: 100%;
  height: 50px;
  margin: 4px 0;
  border: 1px solid #5c5c5c;
  padding: 20px 15px;
  font-size: 20px;
}

form textarea {
  padding: 5px 15px;
  border: 1px solid #5c5c5c;
  border-radius: 3px;
  font-size: 20px;
  width: 100%;
}

form button {
  margin-top: 5px;
  border: none;
  background: lightgreen;
  color: #222;
  padding: 10px 0;
  width: 100%;
  font-size: 20px;
  font-weight: 800;
  cursor: pointer;
  border-radius: 3px;
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    padding: 15px 5%;
    gap: 15px;
    text-align: center;
  }
  .header .logo {
    justify-content: center;
  }
  .header .logo p {
    font-size: 2.2rem;
  }
  .headerMenu {
    flex-wrap: wrap;
    justify-content: center;
    gap: 5px;
    padding: 0;
    width: 100%;
  }
  .headerMenu span {
    width: auto;
    min-width: 6rem;
    font-size: 0.95rem;
    padding: 0.5rem 0.8rem;
    margin: 2px;
    text-align: center;
  }
  .feedback-container form {
    padding: 30px 20px;
  }
  form h1 {
    font-size: 1.5rem;
  }
  form input,
  form textarea,
  form button {
    font-size: 16px;
    height: 44px;
    padding: 10px 15px;
  }
}