/* Global typography standard - preserves the existing visual palette and layout. */
:root {
  --text-base-size: 16px;
  --text-base-line: 1.6;
  --text-secondary-size: 14px;
  --text-label-size: 14px;
  --heading-line: 1.2;
}

html { font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--text-base-size);
  line-height: var(--text-base-line);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

p, li, td, th { line-height: 1.6; }

h1, h2, h3, h4, h5, h6 {
  line-height: var(--heading-line);
  margin-top: 0;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 3.5rem); }
h2 { font-size: clamp(1.65rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.35rem, 2.2vw, 2rem); }
h4 { font-size: clamp(1.15rem, 1.8vw, 1.5rem); }
h5 { font-size: 1.05rem; }
h6 { font-size: 0.95rem; }

label, legend { font-size: var(--text-label-size); line-height: 1.45; }
input, select, textarea, button { font: inherit; }
input, select, textarea { line-height: 1.45; }
button { line-height: 1.35; }
small, .small, .text-small, .form-text, .help-text, .muted { font-size: var(--text-secondary-size); line-height: 1.5; }

@media (max-width: 768px) {
  html { font-size: 15px; }
  body { font-size: 15px; }
  p, li, td, th { line-height: 1.55; }
}