/*
 * Hypershell Design System
 * ─────────────────────────
 * Dual-surface: marketing (dark) + product/content (light)
 * Primary accent: #def200 — background/fill ONLY; pair with --color-on-accent (#0D0D0D)
 * Never use #def200 as text on white (fails WCAG)
 */
:root {
  /* Brand */
  --color-primary: #def200;
  --color-primary-hover: #c9db00;
  --color-on-primary: #0d0d0d;

  /* Marketing (dark) */
  --color-bg: #0d0d0d;
  --color-bg-elev: #1a1a1a;
  --color-bg-soft: #242424;
  --color-text: #f5f5f5;
  --color-text-muted: rgba(245, 245, 245, 0.65);
  --color-text-dim: rgba(245, 245, 245, 0.45);
  --color-line: rgba(255, 255, 255, 0.12);

  /* Product / content (light) */
  --color-canvas: #ffffff;
  --color-surface-1: #f8f8f8;
  --color-surface-2: #f0f0f0;
  --color-border: #e5e5e5;
  --color-ink: #0d0d0d;
  --color-ink-muted: #6b7280;
  --color-on-ink: #ffffff;

  /* Legacy aliases (used across components) */
  --color-bg-light: var(--color-canvas);
  --color-bg-light-soft: var(--color-surface-1);
  --color-text-dark: var(--color-ink);
  --color-text-dark-muted: var(--color-ink-muted);
  --color-accent: var(--color-primary);
  --color-accent-hover: var(--color-primary-hover);
  --color-line-dark: var(--color-border);
  --color-overlay: rgba(0, 0, 0, 0.45);

  --color-success: #22c55e;
  --color-warn: #fb923c;
  --color-error: #ef4444;

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.1);

  /*
   * Font cascade strategy:
   * - Helvetica Now Display: Latin letters, digits, Latin punctuation only
   *   (unicode-range scoped in fonts.css to U+0020-007F + extras)
   * - Google Sans Hebrew: Hebrew (U+0590-05FF) — primary Hebrew font
   * - Heebo: fallback for Hebrew if Google Sans Hebrew fails
   *
   * Result: English text + numbers render in Helvetica Now Display,
   * Hebrew text renders in Google Sans Hebrew automatically per glyph.
   */
  --font-latin: "Helvetica Now Display", "Google Sans", system-ui, sans-serif;
  --font-hebrew: "Google Sans Hebrew", "Heebo", system-ui, sans-serif;
  --font-display: "Helvetica Now Display", "Google Sans", "Google Sans Hebrew", "Heebo", system-ui, sans-serif;
  --font-body: "Helvetica Now Display", "Google Sans", "Google Sans Hebrew", "Heebo", system-ui, sans-serif;
  --font-mono: "Rubik Mono One", "Courier New", monospace;

  --fs-h1: clamp(2.25rem, 5vw + 1rem, 3.5rem);
  --fs-h2: clamp(1.75rem, 3vw + 1rem, 2.75rem);
  --fs-h3: clamp(1.5rem, 2vw + 0.75rem, 2rem);
  --fs-h4: clamp(1.125rem, 1.5vw + 0.5rem, 1.375rem);
  --fs-eyebrow: clamp(0.875rem, 0.5vw + 0.5rem, 1.125rem);
  --fs-body: 0.9375rem;
  --fs-small: 0.875rem;
  --fs-tiny: 0.75rem;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-xbold: 800;

  --lh-tight: 1.05;
  --lh-snug: 1.2;
  --lh-normal: 1.6;
  --ls-tight: -0.02em;
  --ls-tighter: -0.03em;

  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;
  --space-4xl: 128px;

  --container-max: 1200px;
  --container-padding-desktop: 48px;
  --container-padding-tablet: 32px;
  --container-padding-mobile: 24px;

  --nav-height-desktop: 60px;
  --nav-height-mobile: 56px;
  --subtab-height: 56px;

  --btn-height: 44px;
  --btn-radius: 8px;
  --btn-padding-x: 24px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 100ms;
  --dur-base: 200ms;
  --dur-slow: 400ms;

  --z-base: 1;
  --z-sticky: 50;
  --z-nav: 100;
  --z-modal: 200;
  --z-toast: 300;
  --z-a11y: 9000;
}

@media (max-width: 1024px) {
  :root { --container-padding-desktop: var(--container-padding-tablet); }
}
@media (max-width: 640px) {
  :root { --container-padding-desktop: var(--container-padding-mobile); }
}