/* ============================================================
   KAINO70 - Design tokens
   Locked system: minimalist AI film studio.
   Genre: modern-minimal · Theme: studied-DNA (monochrome minimal) + custom
   Monochrome: accent IS ink. Neutral-cool anchor (hue 250, whisper chroma).
   OKLCH only. Fonts: Space Grotesk (display) · Switzer (body) · Space Mono (outlier).
   ============================================================ */

:root {
  /* ---- Paper / surfaces (light, faintly cool-neutral) ---- */
  --color-paper:     oklch(98% 0.004 250);
  --color-paper-2:   oklch(95% 0.005 250);
  --color-paper-3:   oklch(92% 0.006 250);

  /* ---- Ink / text ---- */
  --color-ink:       oklch(18% 0.006 250);
  --color-ink-2:     oklch(40% 0.006 250);
  --color-muted:     oklch(54% 0.005 250);

  /* ---- Rules / hairlines ---- */
  --color-rule:      oklch(88% 0.004 250);
  --color-rule-2:    oklch(78% 0.005 250);

  /* ---- Dark surface (video hero / cinematic panels) ---- */
  --color-dark:      oklch(16% 0.008 250);
  --color-dark-2:    oklch(22% 0.008 250);
  --color-on-dark:   oklch(96% 0.004 250);
  --color-on-dark-2: oklch(72% 0.006 250);

  /* ---- Accent: monochrome (accent IS ink) + focus ring ---- */
  --color-accent:    oklch(18% 0.006 250);
  --color-accent-ink: oklch(98% 0.004 250);
  --color-focus:     oklch(55% 0.13 250);

  /* ---- Typography ---- */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body:    "Switzer", ui-sans-serif, system-ui, sans-serif;
  --font-mono:    "Space Mono", ui-monospace, monospace;

  /* Type scale - 1.25 (major third) ratio, 16px base */
  --text-xs:    0.7rem;
  --text-sm:    0.8rem;
  --text-base:  1rem;
  --text-md:    1.25rem;
  --text-lg:    1.5625rem;
  --text-xl:    1.9531rem;
  --text-2xl:   2.4414rem;
  --text-3xl:   3.0518rem;
  --text-display: clamp(2.75rem, 6vw + 1rem, 5.5rem);

  /* ---- Spacing - 4pt scale, named ---- */
  --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;

  /* ---- Radii ---- */
  --radius-card: 14px;
  --radius-pill: 999px;
  --radius-input: 10px;

  /* ---- Easings (named, never browser default) ---- */
  --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);

  /* ---- Durations ---- */
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long:  420ms;

  /* ---- Z-index scale ---- */
  --z-base:     1;
  --z-raised:   10;
  --z-dropdown: 100;
  --z-sticky:   200;
  --z-modal:    400;
  --z-toast:    500;
  --z-tooltip:  600;

  /* ---- Page gutter ---- */
  --page-gutter: clamp(1.25rem, 5vw, 5rem);
  --rule-hair: 1px;
}