@font-face {
    font-family: 'Standard';
    src: url('Fonts/Ubuntu-Regular.ttf') format('woff2'),
         url('Fonts/Ubuntu-Light.ttf') format('woff'),
         url('Fonts/Ubuntu-Bold.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
  }
  
  :root {
    --primary-color: #1E1F26;
    --secondary-color: #283655;
    --text-color: #999;
    --secondary-text-color: #b9b9b9;
    --background-color: #D0E1F9;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Standard', sans-serif;
    background: #f2f2f2;
    color: var(--text-color);
  }
  
  /* ---------- HEADER / NAV ---------- */
  header {
    width: 100%;
    z-index: 888;
    background-color: rgb(28, 32, 43);
    position: fixed;
  }
  
  nav {
    width: 100%;
  }
  
  nav ul {
    width: 100%;
    list-style: none;
    display: flex;
    justify-content: flex-start;
    align-items: center;
  }
  
  nav li {
    height: 60px;
  }
  
  nav a {
    height: 100%;
    padding: 0 30px;
    display: flex;
    align-items: center;
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: large;
  }
  
  nav a:hover {
    color: rgb(148, 143, 143);
  }
  
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 250px;
    z-index: 999;
    background-color: rgba(28, 32, 43, 0.958);
    backdrop-filter: blur(10px);
    box-shadow: -10px 0 10px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
  }
  
  .sidebar li {
    width: 100%;
  }
  
  .menu-button {
    display: none;
  }
  
  .hideOnMobile {
    display: block;
  }
  
  /* ---------- PAGE CONTAINER ---------- */
  .main-container.home {
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(to bottom, #2530a8, #3331b1);
    background-size: cover;
    background-position: center;
    position: relative;
    z-index: 0;
  }
  
  .main-container.home::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(217, 217, 217, 0.937);
    z-index: -1;
  }
  
  /* ---------- INTRO SECTION ---------- */
  .intro {
    padding-left: 1vw;
    padding-right: 1vw;
    margin-bottom: 20px;
    margin-left: 10vw;
    margin-right: 10vw;
    margin-top: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
  
  h1 {
    font-size: clamp(20px, 20vw, 30px);
    line-height: 115%;
    text-align: center;
    margin-top: 5vw;
    color: rgba(0, 0, 0, 0.863);
  }
  
  .intro-text {
    max-width: 900px;
    text-align: justify;
    hyphens: auto;
    margin: 40px auto;
    padding: 0 20px;
    background-color: rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    font-size: 1.1rem;
    line-height: 1.8;
    position: relative;
    color: rgba(0, 0, 0, 0.863);
  }
  
  /* ---------- IMAGE ---------- */
  .Welcome_Image img {
    margin-top: 1rem;
    width: 180px;
    height: 100px;
    border-radius: 12px;
    padding: 10px;
    filter: grayscale(100%) contrast(0.9);
  }
  
  /* ---------- TOOLKIT SECTION ---------- */
  .used-tools {
    background: rgba(255, 255, 255, 0.39);
    width: 100%;
    text-align: center;
    margin-top: 30px;
    padding-bottom: 60px;
  }
  
  .used-tools h3 {
    margin-top: 40px;
    margin-bottom: 60px;
    font-size: 1.6rem;
    color: rgba(0, 0, 0, 0.73);
  }
  
  /* ---------- GRID SYSTEM ---------- */
  .grid-container {
    margin: 0 auto 50px auto;
    width: 60%;
    max-width: 90%;
    display: grid;
    place-items: center;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .grid-container .grid-item:first-of-type{
    margin-left: 100px;
  }
  .grid-container .grid-item:last-of-type{
    margin-right: 100px;
  }
  
  .grid-item {
    background-color: rgba(28, 32, 43, 0.412);
    border-radius: 20px;
    color: #1E1F26;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    justify-content: space-evenly;
    flex-direction: column;
    text-align: center;
    font-size: 1rem;
    padding: 20px;
    transition: transform 0.2s ease;
    min-width: 100px;
    max-width: 160px;
    width: 100%;
    height: 100%;
  }
  
  .grid-item p:first-of-type {
    font-size: 1.1rem;
    font-weight: bold;
    margin: 0;
  }
  
  .tool {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .tool img {
    max-height: 30px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(0.9);
    transition: transform 0.3s, filter 0.3s;
  }
  
  .tool img:hover {
    filter: brightness(1.1);
    transform: scale(1.1);
  }
  
  .bottom {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.3rem;
    padding-top: 1rem;
  }
  
  /* ---------- DISCLAIMER ---------- */
  .home-disclaimer {
    text-align: center;
    max-width: 80%;
    margin: 0 auto;
    font-size: 0.85rem;
    color: rgba(0, 0, 0, 0.8);
    padding: 0 20px;
  }
  
  .home-disclaimer p:first-of-type {
    font-weight: bold;
    margin-bottom: 10px;
  }
  
  /* ---------- FOOTER ---------- */
  footer {
    display: flex;
    margin-top: 5vw;
    margin-bottom: 3vw;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    list-style: none;
    width: 80%;
  }
  
  footer a {
    text-decoration: underline;
    font-size: 16px;
    line-height: 1.5;
    color: gray;
  }
  
  footer p {
    margin-top: 4vw;
    color: black;
  }
  
  /* ---------- RESPONSIVE ---------- */


  @media (max-width: 1280px){
    .grid-container .grid-item:first-of-type{
        margin-left: 0px;
      }
      .grid-container .grid-item:last-of-type{
        margin-right: 0px;
      }
  }

  @media (max-width: 768px) {
    .menu-button {
      display: block;
      
    }
  
    .hideOnMobile {
      display: none;
    }
  
    .grid-container {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
  
    .intro h1 {
      font-size: 1.6rem;
      margin-top: 7vw;
    }

    .intro-text{
        padding: 10px 20px;
        font-size: 1.1rem;
    }
  }
  
  @media (max-width: 480px) {

    h1 {
        font-size: 1.6rem;
        margin-top: 2rem;
    }

    .intro {
      padding: 0 0px;
      margin-left: 20px;
      margin-right: 20px;
    }
  }

  /* Force mobile layout in landscape mode on mobile devices */
@media screen and (orientation: landscape) and (max-height: 500px) {
  .menu-button {
    display: block;
  }

  .hideOnMobile {
    display: none;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .intro-text {
    font-size: 1rem;
    padding: 10px 15px;
  }

  .grid-container {
    grid-template-columns: 1fr;
  }

  .Welcome_Image img {
    width: 150px;
    height: auto;
  }
}