.container {
  position: relative;
  margin: 20px auto;
  padding: 20px;
  border-radius: 16px;
  font-family: 'Poppins', sans-serif;
  text-align: center;
  max-width: 900px;
  background: #121212; /* Ultra-dark background */
  color: #e0e0e0; /* Soft white text for readability */
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
  z-index: 1;
}

/* Dark gradient border (deep blue + teal green) */
.container::before {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  z-index: -1;
  border-radius: 20px;
  background: linear-gradient(135deg, #003366, #005544); /* Dark blue to dark green */
}

.container h1 {
  font-size: 40px;
  font-weight: 800;
  color: #222;
  background: linear-gradient(90deg, #0d6efd, #20c997);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  margin-bottom: 30px;
  letter-spacing: 1.5px;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
  padding: 10px 0;
  border-bottom: 3px solid #0d6efd;
  display: inline-block;
}

.container ul {
  list-style: none;
  padding-left: 0;
  margin: 0 0 20px 0;
}

.container ul li {
  background: #f0f4ff;
  color: #0d6efd;
  padding: 10px 15px;
  margin-bottom: 8px;
  border-radius: 6px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 2px 6px rgba(13, 110, 253, 0.15);
  transition: background-color 0.3s ease;
}

.container ul li:hover {
  background: #d7e3ff;
  cursor: default;
}

.container ul li i.fa-file {
  font-size: 18px;
  color: #0d6efd;
}

input[type="file"] {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 8px;
  /* Smooth rounded corners */
  border: none;
  /* Remove border for a cleaner look */
  font-size: 16px;
  background: linear-gradient(135deg, #6e7bff, #5c6bc0);
  /* Gradient background */
  color: white;
  box-sizing: border-box;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  /* Smooth transition for hover and focus effects */
  text-transform: uppercase;
  /* Uppercase text */
  font-weight: 600;
  /* Bolder font */
}

input[type="file"]:hover {
  background: linear-gradient(135deg, #5c6bc0, #6e7bff);
  /* Inverted gradient on hover */
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
  /* Subtle shadow effect */
  transform: translateY(-2px);
  /* Lift the file input on hover */
}

input[type="file"] + label {
  background-color: #007bff;
  color: white;
  padding: 12px 25px;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

input[type="file"] + label:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
}

input[type="file"] + label:active {
  background-color: #004085;
  transform: translateY(2px);
}

/* Styling for number input and select */
  input[type="number"], select {
  width: 120px;
  padding: 12px;
  margin: 10px 0;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 16px;
  background-color: #f9f9f9;
  box-sizing: border-box;
}

.second-button {
  background: #28a745;
  border: none;
  color: white;
  padding: 10px 20px;
  margin: 5px 5px 5px 0;
  border-radius: 5px;
  cursor: pointer;
}

.second-button:hover {
  background-color: #098024;
  transform: translateY(-2px);
}

.download-btn {
  display: inline-block;
  margin-top: 15px;
  background: #0d6efd;
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
}

.card {
  background: #fff;
  padding: 30px;
  max-width: 500px;
  margin: auto;
  border-radius: 16px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
}

.card h1 {
  font-size: 26px;
  margin-bottom: 20px;
}

.file-list {
  text-align: left;
  margin: 15px 0;
}

.file-list li {
  padding: 6px 0;
  border-bottom: 1px solid #eee;
}

.file-list i {
  color: #0066ff;
  margin-right: 6px;
}

.message {
  margin: 15px 0;
  font-weight: bold;
}

.file-accepted {
  font-size: 16px;
  color: #333;
  margin: 14px 0;
  text-align: left;
}

.file-accepted i {
  color: #4caf50;
  margin-right: 8px;
  font-size: 18px;
}

.file-accepted strong {
  margin-right: 6px;
}

.file-accepted span {
  background: #f1f1f1;
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 5px;
  font-size: 14px;
  color: #333;
}