body {
    background-color: #1a1a1a;
    color: #ffffff;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.back-btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    background: #222;
    border: 2px solid #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px #fff33f33;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.back-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(45deg);
    transition: all 0.5s ease;
}

.back-btn:hover::before {
    left: 100%;
}

.back-btn:hover {
    color: #fff;
    background: #111;
    box-shadow: 0 0 20px #fffa00, 0 0 30px #fffa00, 0 0 40px #fffa00;
    transform: scale(1.05);
}

.container {
    background-color: #2e2e2e;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    text-align: center;
}

h1 {
    color: #4caf50;
}

.upload-button {
    margin-bottom: 20px;
}

.btn {
    padding: 10px 20px;
    background-color: #4caf50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 16px;
}

.btn:hover {
    background-color: #45a049;
}

table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

th, td {
    padding: 10px;
    border: 1px solid #333;
    text-align: left;
}

th {
    background-color: #4caf50;
}

td img {
    vertical-align: middle;
}

/* Button Styling */
.btn {
  background-color: #444; /* Dark gray for contrast */
  color: #fff; /* White text */
  border: 2px solid #555; /* Slightly lighter border */
  padding: 10px 20px; /* Padding for a nice button size */
  border-radius: 5px; /* Rounded corners */
  text-transform: uppercase; /* Uppercase text for emphasis */
  font-weight: bold; /* Bold text */
  cursor: pointer; /* Pointer cursor for interactivity */
  transition: background-color 0.3s ease, color 0.3s ease; /* Smooth hover transition */
}

.btn:hover {
  background-color: #666; /* Lighter gray on hover */
  color: #000; /* Black text on hover */
}

/* Link Styling */
a:link, a:visited {
  color: #00f7ff; /* Bright cyan for visibility */
  text-decoration: none; /* Remove underlines */
  font-weight: bold; /* Make links stand out */
  transition: color 0.3s ease; /* Smooth transition */
}

a:hover {
  text-decoration: none; /* Add underline for hover effect */
  color: #ffcc00; /* Bright yellow for hover effect */

}

input[type="file"] {
  cursor:pointer;
  display: block; /* Ensures it's on its own line */
  background-color: #333; /* Dark gray background */
  color: #fff; /* White text */
  border: 2px solid #555; /* Slightly lighter border for contrast */
  border-radius: 5px; /* Rounded corners */
  padding: 10px; /* Comfortable padding */
  font-size: 14px; /* Readable text size */
  cursor: pointer; /* Pointer cursor for interactivity */
  transition: background-color 0.3s ease, color 0.3s ease; /* Smooth hover effect */
}

input[type="file"]:hover {
  cursor:pointer;
  background-color: #555; /* Slightly lighter gray on hover */
  color: #000; /* Black text on hover */
}

        .search-container {
            margin-bottom: 20px;
            display: flex;
            align-items: center;
        }
        .search-bar {
            padding: 10px;
            width: 250px;
            background-color: black;
            color: white;
            border: none;
            border-radius: 5px;
            margin-left: 150px;
            margin-right: 10px;
        }
        .clear-button {
            padding: 10px 20px;
            background-color: #4caf50;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }
        .clear-button:hover {
            background-color: #45a049;
        }
        .qr-code-img {
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        .qr-code-img.enlarged {
            transform: scale(2.5);
        }
.remove-button {
    padding: 5px 10px;
    background-color: #ff4d4d;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.remove-button:hover {
    background-color: #ff1a1a;
}