/* Hallmark · tokens · theme: Cobalt (modern-minimal)
 * axes: paper-band light (cool, hue 250) / display grotesk-sans / accent cool (cobalt 256)
 */
:root {
  /* Paper + ink — cool engineered near-white, cool charcoal ink */
  --color-paper:        oklch(98.5% 0.004 250);
  --color-paper-2:      oklch(96.5% 0.006 252);
  --color-paper-3:      oklch(94%   0.008 254);
  --color-paper-glass:  oklch(98.5% 0.004 250 / 0.92);
  --color-rule:         oklch(90%   0.008 255);
  --color-rule-2:       oklch(84%   0.010 255);
  --color-neutral:      oklch(56%   0.014 257);
  --color-muted:        oklch(46%   0.016 257);
  --color-ink-2:        oklch(34%   0.018 257);
  --color-ink:          oklch(24%   0.020 258);

  /* The one signal */
  --color-accent:       oklch(55%   0.20  256);
  --color-accent-hover: oklch(49%   0.20  256);
  --color-accent-soft:  oklch(93%   0.035 256);
  --color-accent-ink:   oklch(98.5% 0.004 250);
  --color-focus:        oklch(55%   0.20  256);

  /* Chart series — cobalt ramp, never a second hue */
  --color-series-1:     oklch(55%   0.20  256);
  --color-series-2:     oklch(72%   0.11  256);
  --color-series-3:     oklch(86%   0.045 256);

  /* Status */
  --color-good:         oklch(50%   0.12  155);
  --color-bad:          oklch(52%   0.19  27);
  --color-bad-soft:     oklch(95%   0.03  27);
  --color-warn:         oklch(55%   0.13  70);
  --color-warn-soft:    oklch(95%   0.04  80);

  /* The one dark band */
  --color-graphite:     oklch(21%   0.016 260);
  --color-graphite-2:   oklch(26%   0.018 260);
  --color-graphite-rule:oklch(35%   0.020 260);
  --color-on-dark:      oklch(95%   0.006 250);
  --color-on-dark-2:    oklch(78%   0.012 255);
  --color-accent-dark:  oklch(74%   0.14  256);

  /* Type — all three faces ship Vietnamese glyphs */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body:    "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  --text-xs:      0.75rem;
  --text-sm:      0.875rem;
  --text-base:    1.0625rem;
  --text-lg:      1.3125rem;
  --text-xl:      clamp(1.75rem, 1.6vw + 1.2rem, 2.5rem);
  --text-display: clamp(2.5rem, 4.2vw + 1rem, 4.5rem);

  /* Space — 4pt scale */
  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs:  0.5rem;
  --space-sm:  0.75rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 9rem;

  --page-gutter: clamp(1rem, 4vw, 3rem);
  --page-max:    72rem;

  /* Shape */
  --radius-sm:   6px;
  --radius-md:   10px;
  --rule-w:      1px;
  --shadow-lift: 0 1px 2px oklch(24% 0.02 258 / 0.06);

  /* Motion */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:     cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast:    120ms;
  --dur-base:    200ms;
  --dur-slow:    320ms;

  /* Z scale */
  --z-base:   1;
  --z-raised: 10;
  --z-sticky: 200;
}