/* Hallmark · macrostructure: Marquee Hero · hero: statement + live ask-box (real product, no chrome)
 * theme: custom · vibe: "sovereign paper, desert light, evidentiary green"
 * paper: oklch(96.5% 0.012 95) · accent: oklch(45% 0.13 152) · cite-gold: oklch(62% 0.11 85)
 * display: IBM Plex Sans Arabic 700 · body: IBM Plex Sans Arabic · mono: IBM Plex Mono
 * axes: light / geometric-sans / chromatic-green · studied: no · context: inferred
 * Itman — brand tokens. Single source of truth for every page.
 */
:root {
  /* Paper — warm ivory, the color of documents in desert light */
  --color-paper:    oklch(96.5% 0.012 95);
  --color-paper-2:  oklch(93.5% 0.014 95);   /* one elevation step: cards, wells */
  --color-paper-3:  oklch(90% 0.016 95);     /* second step: pressed, code wells */

  /* Ink — green-tinted near-black */
  --color-ink:      oklch(21% 0.012 150);
  --color-ink-2:    oklch(38% 0.012 150);    /* secondary text */
  --color-muted:    oklch(52% 0.012 150);    /* de-emphasised */

  /* Rules & greys — all green-tinted, never zero-chroma */
  --color-rule:     oklch(80% 0.014 130);
  --color-rule-2:   oklch(86% 0.012 120);

  /* Accent — deep Saudi green. The sole authority color. ≤5% of any page. */
  --color-accent:      oklch(45% 0.13 152);
  --color-accent-deep: oklch(36% 0.11 152);
  --color-accent-ink:  oklch(96.5% 0.012 95); /* text on accent fill */
  --color-accent-soft: oklch(92% 0.03 152);   /* accent wash: active states only */

  /* Citation gold — SEMANTIC. Only on citations, sources, verified states. Never decorative. */
  --color-cite:      oklch(62% 0.11 85);
  --color-cite-soft: oklch(92% 0.035 90);

  /* States */
  --color-focus:   oklch(50% 0.19 152);
  --color-danger:  oklch(52% 0.15 25);
  --color-danger-soft: oklch(93% 0.03 25);

  /* Type — IBM Plex superfamily. Arabic never letterspaced. */
  --font-display: "IBM Plex Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --font-body:    "IBM Plex Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  --text-display: clamp(2.6rem, 9vw, 6rem);   /* the marquee statement */
  --text-3xl: clamp(1.7rem, 4vw, 2.4rem);
  --text-2xl: 1.45rem;
  --text-xl:  1.18rem;
  --text-lg:  1.05rem;
  --text-md:  0.95rem;
  --text-sm:  0.85rem;
  --text-xs:  0.76rem;

  --leading-display: 1.15;   /* Arabic display needs air */
  --leading-body: 1.85;      /* generous for Arabic body */
  --leading-tight: 1.4;

  /* Space — 4pt scale */
  --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: 6.5rem;

  /* Shape & depth — flat, printed; shadows barely-there */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --shadow-1: 0 1px 2px oklch(21% 0.012 150 / 0.06);
  --shadow-2: 0 4px 16px oklch(21% 0.012 150 / 0.09);
  --rule-thick: 3px solid var(--color-ink);

  /* Motion — calm, evidentiary */
  --dur-fast: 150ms;
  --dur-base: 240ms;
  --dur-slow: 320ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* Additive (2026-09-27, home v2 layout) — no existing value changed */
  --text-4xl: clamp(2rem, 4vw + 0.4rem, 3rem);
  --radius-lg: 16px;
  --color-scrim: oklch(21% 0.012 150 / 0.45);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
}