@charset "utf-8";

html {
   background: linear-gradient(135deg, #dbeaf3, #f8fbfd);
}

body {
   width: 90%;
   max-width: 1100px;
   margin: 0 auto;
   font-family: Verdana, Geneva, sans-serif;
   color: #444;
   background-color: white;
   box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
}

header {
   background-color: #315f7d;
   color: white;
   text-align: center;
   padding: 35px 20px;
}

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

header p {
   font-style: italic;
}

nav ul {
   list-style-type: none;
   margin: 0;
   padding: 0;
   display: flex;
}

nav li {
   width: 33.33%;
}

nav a {
   display: block;
   text-align: center;
   padding: 15px;
   background-color: #4a7491;
   color: white;
   text-decoration: none;
   font-weight: bold;
   transition: background-color 0.5s ease, color 0.5s ease;
}

nav a:hover {
   background-color: #d9e7f2;
   color: #1f3c57;
}

main {
   padding: 30px;
}

h2 {
   color: #1f3c57;
   border-bottom: 2px solid #4a7491;
   padding-bottom: 8px;
}

p {
   line-height: 1.6em;
}

.hero {
   background-color: #eef6fa;
   padding: 25px;
   border-radius: 10px;
   border: 1px solid #b7cbd8;
}

.cards {
   display: flex;
   gap: 20px;
   margin-top: 25px;
}

.cards article {
   flex: 1;
   padding: 20px;
   background-color: #f7fbfd;
   border: 1px solid #b7cbd8;
   border-radius: 8px;
}

.projectList li {
   margin-bottom: 10px;
}

.projectList a {
   color: #315f7d;
   font-weight: bold;
}

footer {
   text-align: center;
   padding: 15px;
   background-color: #315f7d;
   color: white;
}

@media only screen and (max-width: 768px) {
   body {
      width: 100%;
      box-shadow: none;
   }

   nav ul {
      flex-direction: column;
   }

   nav li {
      width: 100%;
   }

   .cards {
      flex-direction: column;
   }

   header h1 {
      font-size: 2em;
   }
}