body {
  font-family: 'Inter', sans-serif;
  background-color: #f3f4f6;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 640px;
  margin: 2rem auto;
  padding: 2rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}
h1, h2 {
  font-weight: 700;
  color: #1f2937;
}
input[type="url"],
input[type="text"],
#short-link {
  width: 100%;
  padding: 0.75rem;
  margin-top: 0.5rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
}
button {
  background-color: #2563eb;
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 1rem;
  transition: background-color 0.2s ease-in-out;
}
button:hover {
  background-color: #1d4ed8;
}
ul {
  margin-top: 1rem;
}
li a {
  color: #2563eb;
  text-decoration: underline;
}
p.success {
  color: #16a34a;
  margin-top: 1rem;
}
p.error {
  color: #dc2626;
  margin-top: 1rem;
}
.copy-container {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  align-items: center;
}

.generated-link {
  background-color: #2563eb;
  color: white;
  padding: 0.5rem;
  border-radius: 0.5rem;
  margin-top: 0.5rem;
}
.generated-link a {
  color: white;
  text-decoration: underline;
}