/* Inquiro — Typography tokens */
:root {
  /* ---- Families ---- */
  --font-display: "Space Grotesk", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  /* ---- Weights (the product leans heavy) ---- */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-heavy: 800;
  --weight-black: 900;

  /* ---- Type scale ---- */
  --text-2xs: 11px;   /* micro labels, axis ticks */
  --text-xs: 12px;    /* eyebrows, badges, captions */
  --text-sm: 13px;    /* secondary UI text */
  --text-base: 15px;  /* body (product default) */
  --text-md: 16px;    /* lead body */
  --text-lg: 18px;    /* card titles */
  --text-xl: 20px;    /* section subtitles (h3/h2) */
  --text-2xl: 22px;   /* panel headings */
  --text-3xl: 28px;   /* page titles (h1) */
  --text-4xl: 38px;   /* big numbers / display */
  --text-5xl: 46px;   /* hero (teacher) */
  --text-6xl: 64px;   /* hero display (student) */

  /* ---- Line heights ---- */
  --leading-tight: 1.08;
  --leading-snug: 1.25;
  --leading-normal: 1.55;
  --leading-relaxed: 1.72;

  /* ---- Letter spacing ---- */
  --tracking-tight: -0.01em;
  --tracking-normal: 0;
  --tracking-wide: 0.06em;
  --tracking-eyebrow: 0.08em;  /* uppercase mono eyebrows */
}