@import url("https://fonts.googleapis.com/css2?family=Fira+Code:wght@300..700&family=Orbitron:wght@400..900&display=swap");

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

html {
  height: 100%;
}

body {
  font-family: Arial, Helvetica, sans-serif;
}

/* Styles of the heaer */

header {
  background-color: black;
  color: white;
  padding: 20px 10px;
}

.headerContainer {
  width: 1000px;
  margin: auto;

  h3 {
    font-size: 0.8rem;
    margin: 10px 0px 5px 0px;
    color: rgba(255, 255, 255, 0.794);
  }
  p {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.794);
  }
}

/* Styles of Category */

.navigation {
  padding: 0.7rem 0;
  width: 1000px;
  margin: auto;
}

.filter-btn {
  font-size: 0.7rem;
  color: rgba(0, 0, 0, 0.619);
  padding: 5px 15px;
  margin-right: 10px;
  background-color: white;
  border: 1px solid rgba(0, 0, 0, 0.314);
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.filter-btn:hover {
  background-color: black;
  color: white;
}
.filter-btn.active {
  background: #000; color: #fff; box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

hr {
  color: gray;
}

/* Styles for the Main Content */

.hub {
  width: 1000px;
  margin: auto;

  h2 {
    margin-top: 30px;
    font-weight: 800;
  }
  #numOfProjects {
    font-size: 0.7rem;
    color: rgba(0, 0, 0, 0.39);
  }
}

.projectsHub {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  width: 100%;
  height: 100%;
  margin: 1rem 0;
}

.projectsContainer {
  padding: 1rem;
  border: 2px solid rgba(0, 0, 0, 0.113);
  border-radius: 5px;

  h3 {
    font-weight: 800;
    font-size: 1rem;
  }

  p {
    font-size: 0.8rem;
    color: rgba(0, 0, 0, 0.465);
    margin: 14px 0;
  }

  ul {
    font-size: 0.6rem;
    list-style: none;
    display: flex;
    gap: 10px;
    margin-bottom: 20px;

    li {
      color: rgba(0, 0, 0, 0.451);
      background-color: rgba(128, 128, 128, 0.096);
      padding: 5px 10px;
      border-radius: 10px;
    }
  }

  button {
    color: rgba(0, 0, 0, 0.634);
    font-size: 0.7rem;
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 5px;
    border: 1px solid rgba(0, 0, 0, 0.317);
  }

  .demoBtn {
    background-color: black;
    color: white;
  }
}

.project-item {
  transition: opacity .32s ease, transform .32s ease;
  opacity: 1;
  transform: translateY(0);
  will-change: opacity, transform;
}

/* Hiding state (animated) */
.project-item.hiding {
  opacity: 0;
  transform: translateY(10px) scale(.98);
  pointer-events: none;          /* prevent interaction while hiding */
  visibility: visible;          /* keep visible until display:none applied after transition */
}

footer {
  width: 100%;
  padding: 1rem;
  position: fixed;
  bottom: 0;
  background-color: black;
}

.footerContainer {
  color: white;
  width: 1000px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.rights {
  margin-top: 10px;
  justify-content: start;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.825);
}

.socialLinks {
  justify-content: end;
  text-align: end;

  button {
    color: white;
    background-color: transparent;
    border: none;
    margin-right: 10px;
    cursor: pointer;
    transition: all 0.3s;
    padding: 5px 10px;
  }
  button:hover {
    background-color: grey;
    color: black;
    padding: 5px 10px;
    border-radius: 10px;
  }

  img{
    height: 20px;
  }
}