:root {
  --v-bg: #ffffff;
  --v-surface: #ffffff;
  --v-panel: #fafafa;
  --v-panel2: #f4f4f5;
  --v-ink: #0a0a0a;
  --v-ink2: #52525b;
  --v-ink3: #a1a1aa;
  --v-hair: #e4e4e7;
  --v-hair-soft: #f1f1f4;
  --v-black: #000000;
  --v-err: #b91c1c;
  --v-err-soft: #fee2e2;
  --v-warn: #c2410c;
  --v-warn-soft: #ffedd5;
  --v-ai: #15803d;
  --v-ai-soft: #dcfce7;
  --v-ai-border: #bbf7d0;
  --v-blue: #2563eb;
  --v-blue-soft: #dbeafe;
  --v-font: "Roboto", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --v-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--v-font);
  color: var(--v-ink);
  background: var(--v-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, *::before, *::after { box-sizing: border-box; }

button { font-family: inherit; }
input, textarea { font-family: inherit; color: inherit; }

a { color: inherit; }

/* utility */
.eyebrow {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--v-ink3);
}

.mono { font-family: var(--v-mono); }

/* responsive breakpoint helper (used by JS-interop ResponsiveService) */
@media (max-width: 639px) {
  .desktop-only { display: none !important; }
}
@media (min-width: 640px) {
  .mobile-only { display: none !important; }
}