body { font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Noto Sans KR, Arial, Apple SD Gothic Neo, Helvetica, sans-serif; }
/* minimal utility subset when tailwind CDN unavailable */
.container { max-width: 960px; margin: 0 auto; padding: 1rem; }
.hidden { display: none; }
.bg-white { background: #fff; }
.bg-yellow-200 { background: #fef08a; }
.bg-indigo-50 { background: #eef2ff; }
.bg-indigo-600 { background: #4f46e5; }
.bg-emerald-600 { background: #059669; }
.text-white { color: #fff; }
.text-gray-800 { color: #1f2937; }
.text-gray-700 { color: #374151; }
.text-gray-600 { color: #4b5563; }
.text-gray-500 { color: #6b7280; }
.rounded-lg { border-radius: .5rem; }
.rounded-xl { border-radius: .75rem; }
.shadow { box-shadow: 0 1px 2px rgba(0,0,0,.05), 0 2px 8px rgba(0,0,0,.06); }
.border { border: 1px solid #e5e7eb; }
.p-3 { padding: .75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.mt-1 { margin-top: .25rem; }
.mt-2 { margin-top: .5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: .75rem; }
.mb-4 { margin-bottom: 1rem; }
.text-sm { font-size: .875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.leading-8 { line-height: 2rem; }
.whitespace-pre-wrap { white-space: pre-wrap; }
.w-full { width: 100%; }
.flex { display: flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.space-y-2 > * + * { margin-top: .5rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.container-pad { padding: 2rem 1rem; }