body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: #333;
  color: #fff;
  padding: 1em 0;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0;
}

header nav a{
  color: white;
  text-decoration: none;
}

header nav button{
  background: none;
  border: none;
  color: white;
  cursor: pointer;
}

main {
  padding: 2em 0;
}

.search-bar {
 margin-bottom: 20px;
  display: flex;
   gap: 10px;
}

.search-bar input{
  flex: 1;
  padding: 10px;
}
.search-bar button {
  padding: 10px;
    background-color: #5cb85c;
    border: none;
    color: white;
    cursor: pointer;
}
.categories ul {
    list-style: none;
    padding: 0;
     display: flex;
      gap: 10px;
}

.categories ul li {
  padding: 10px;
  background-color: #eee;
  cursor: pointer;
   border: 1px solid #ddd;
    border-radius: 5px;
}

.categories ul li:hover {
    background-color: #ddd;
}

.artwork-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.artwork-card {
   background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 10px;
    text-align: center;
}

.artwork-card img{
  max-width: 100%;
  height: auto;
}

.artwork-card h3 {
  margin-top: 0;
}
.artwork-card button{
   background-color: #337ab7;
    border: none;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}

.modal-content {
  background-color: #fefefe;
  margin: 15% auto;
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
  position: relative;
}
.close-button {
  position: absolute;
  top: 0;
  right: 0;
  padding: 10px;
  color: #aaa;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}
.close-button:hover,
.close-button:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}
.modal-content button {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #5cb85c;
  border: none;
  color: white;
  cursor: pointer;
}
footer {
   background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}
/* Responsive Layout */
@media(max-width: 768px) {
  header .container {
    flex-direction: column;
    text-align: center;
  }
    header nav {
        margin-top: 10px;
    }
  .categories ul {
      flex-wrap: wrap;
       justify-content: center;
  }
   .modal-content {
    margin: 30% auto;
    }
}