* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--canvas);
    color: var(--ink);
    min-height: 100vh;
    display: block;
    font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: inherit; }
code { font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace; }

.hidden { display: none !important; }
.flex { display: flex; }
.grid { display: grid; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.flex-1 { flex: 1 1 0%; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.shrink-0 { flex-shrink: 0; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.overflow-hidden { overflow: hidden; }
.overflow-y-auto { overflow-y: auto; }
.w-full { width: 100%; }
.w-52 { width: 13rem; }
.max-w-sm { max-width: 24rem; }
.max-w-3xl { max-width: 48rem; }
.min-h-screen { min-height: 100vh; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.ml-1 { margin-left: 0.25rem; }
.p-0 { padding: 0; }
.p-3 { padding: 0.75rem; }
.p-6 { padding: 1.5rem; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.pb-2 { padding-bottom: 0.5rem; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-x-6 { column-gap: 1.5rem; }
.gap-y-2 { row-gap: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.border { border: 1px solid var(--line); }
.border-r { border-right: 1px solid var(--line); }
.border-t { border-top: 1px solid var(--line); }
.border-b { border-bottom: 1px solid var(--line); }
.border-gray-100, .border-gray-200, .border-gray-300 { border-color: var(--line); }
.bg-white { background: var(--surface); }
.bg-gray-50, .bg-gray-100 { background: var(--surface-soft); }
.text-xs { font-size: 0.875rem; }
.text-sm { font-size: 0.9375rem; }
.text-base { font-size: 1rem; }
.font-normal { font-weight: 400; }
.font-mono { font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.leading-tight { line-height: 1.25; }
.text-gray-400, .text-gray-500 { color: var(--muted); }
.text-gray-900 { color: var(--ink); }
.text-red-400 { color: var(--danger); }
.text-blue-500, .text-blue-600 { color: var(--accent); }
.hover\:text-blue-700:hover { color: var(--accent); }
.hover\:text-blue-700 { transition: color 0.15s; }
.focus\:outline-none:focus { outline: none; }
.focus\:border-blue-400:focus { border-color: var(--accent); }
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }
.whitespace-nowrap { white-space: nowrap; }
.col-span-2 { grid-column: span 2 / span 2; }
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (min-width: 768px) {
    .md\:col-span-2 { grid-column: span 2 / span 2; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}