body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f8fafc;
  color: #222;
  margin: 0;
  padding: 0;
}

main {
  min-height: 60vh;
}

h1, h2, h3 {
  font-weight: 700;
  color: #1a202c;
}

h1 { font-size: 2.2rem; margin-bottom: 1rem; }
h2 { font-size: 1.4rem; margin-bottom: 0.7rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }

.max-w-4xl { max-width: 64rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-2xl { max-width: 36rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-8 { margin-top: 2rem; }

.bg-white { background: #fff; }
.bg-gray-100 { background: #f3f4f6; }
.bg-yellow-50 { background: #fefce8; }
.bg-yellow-100 { background: #fef9c3; }
.bg-yellow-400 { background: #facc15; }
.bg-yellow-500 { background: #eab308; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-900 { color: #111827; }
.text-yellow-700 { color: #a16207; }
.text-white { color: #fff; }
.text-center { text-align: center; }
.text-sm { font-size: 0.95rem; }
.text-xs { font-size: 0.8rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.rounded { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }
.shadow { box-shadow: 0 2px 8px 0 rgba(0,0,0,0.07); }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: 1fr; }
.md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.gap-6 { gap: 1.5rem; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }

.p-4 { padding: 1rem; }
.p-8 { padding: 2rem; }
.w-full { width: 100%; }
.h-32 { height: 8rem; }
.h-20 { height: 5rem; }
.w-20 { width: 5rem; }
.w-64 { width: 16rem; }
.h-64 { height: 16rem; }

input, textarea, select, button {
  font-family: inherit;
  font-size: 1rem;
  border-radius: 0.4rem;
  border: 1px solid #d1d5db;
  padding: 0.5rem 1rem;
  margin-bottom: 0.7rem;
  background: #fff;
  color: #222;
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid #facc15;
  border-color: #facc15;
}
button, .btn {
  background: #facc15;
  color: #222;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 0.4rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
button:hover, .btn:hover {
  background: #eab308;
}
a {
  color: #2563eb;
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: #a16207;
  text-decoration: underline;
}
.bg-white.shadow.p-8 {
  box-shadow: 0 2px 16px 0 rgba(0,0,0,0.08);
}
footer {
  margin-top: 2rem;
  padding: 2rem 0 1rem 0;
  background: #f3f4f6;
  color: #374151;
  font-size: 1rem;
}
@media (max-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: 1fr; }
  .p-8 { padding: 1rem; }
  .w-64, .h-64 { width: 100%; height: auto; }
}