body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f3f4f6;
  color: #1f2937;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 480px;
  margin: 2rem auto;
  background-color: #fff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

button {
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Responsive images */
img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

/* Text inputs */
input[type="text"],
textarea {
  border: 1px solid #d1d5db;
  border-radius: 0.375rem;
  padding: 0.5rem;
  font-size: 1rem;
  width: 100%;
  box-sizing: border-box;
}

input[type="text"]:focus,
textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.4);
  outline: none;
}

h1, h2 {
  color: #111827;
}

a {
  color: #2563eb;
  text-decoration: underline;
}

a:hover {
  color: #1e40af;
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-4 {
  margin-top: 1rem;
}

.mt-6 {
  margin-top: 1.5rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

.bg-yellow-500 {
  background-color: #f59e0b;
}

.bg-yellow-600:hover {
  background-color: #d97706;
}

.bg-blue-600 {
  background-color: #2563eb;
}

.bg-blue-700:hover {
  background-color: #1d4ed8;
}

.bg-green-600 {
  background-color: #16a34a;
}

.bg-green-700:hover {
  background-color: #15803d;
}

.text-white {
  color: white;
}