body {
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  font-family: Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  background-color: #f9f9f9;
  min-height: 100vh;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  margin-inline:1rem;
  padding: 0 15px;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  margin-bottom: 0.5em;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

p {
  margin-bottom: 1em;
}

a {
  color: #007BFF;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover,
a:focus {
  color: #0056b3;
  text-decoration: underline;
}

button,
button[type="submit"],
input[type="button"],
input[type="submit"] {
  background-color: #007BFF;
  color: white;
  border: none;
  padding: 10px 18px;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover,
button:focus,
input[type="button"]:hover,
input[type="submit"]:hover {
  background-color: #0056b3;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 10px;
  margin-bottom: 1em;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
  color: #333;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
  border-color: #007BFF;
  outline: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  margin-bottom: 1em;
  padding-left: 1.5em;
}

.center {
  text-align: center;
}

.link-btn {
  cursor: pointer;
  transition: all 0.3s ease;
  background-color:black;
  color:white;
  padding:10px 20px;
  border-radius:5px;
}

.link-btn:hover {
  background-color:#333;
  color:white;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  padding: 5px 10px;
  background-color: #333;
  color: white;
}

nav h3 {
  font-size: 1.5rem;
  font-weight: 600;
  vertical-align:center;
  color: white;
  margin:0;
}

main, header, footer {
  padding-inline: 20px;
}

main {
  flex: 1;
}

footer {
  text-align: center;
  padding: 10px 20px;
  height:3rem;
  background-color: #333;
  color: white;
}

.grid {
  display: flex;
  flex-direction: column;
  border: 1px solid #ccc;
  border-radius: 5px;
  padding: 0;
}

.grid-title {
  background-color: #aaa;
  color: black;
  padding: 5px 10px;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
  border:1px solid #ccc;
  font-weight:bold;
  font-size:1.4rem;
}

.grid-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin:0;
}

.project {
  background-color: white;
  padding: 20px;
  border-bottom-left-radius: 5px;
  border-bottom-right-radius: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease;
  border: 1px solid #ccc;
  border-top: none;
}

.project:hover {
  background-color:#ddd;
}