/* ==========================================================================
   NawaSpace — Design Tokens
   Single source of truth for color, type, spacing, radius, shadow and
   breakpoint values. No component rules live here — see design-system.css.
   ========================================================================== */

:root {

  /* ------------------------------------------------------------------
     1. COLOR — Brand
     ------------------------------------------------------------------ */
  --color-navy-900: #060F26;
  --color-navy-800: #081B3F;   /* primary */
  --color-navy-700: #0E2B5C;
  --color-navy-600: #163C79;
  --color-navy-500: #2A5296;

  --color-teal-700: #00786B;
  --color-teal-600: #00A896;   /* secondary */
  --color-teal-500: #1FBBA8;
  --color-teal-400: #4FD1C5;
  --color-teal-100: #E1F7F4;

  --color-amber-700: #C97C1E;
  --color-amber-600: #F4A340;  /* accent */
  --color-amber-500: #FFB65C;
  --color-amber-100: #FFF1DE;

  --color-purple-700: #2D1B4E; /* signature gradient partner */

  /* Semantic aliases — use these in components, not raw hues */
  --color-primary: var(--color-navy-800);
  --color-primary-hover: var(--color-navy-700);
  --color-primary-active: var(--color-navy-900);
  --color-secondary: var(--color-teal-600);
  --color-secondary-hover: var(--color-teal-500);
  --color-accent: var(--color-amber-600);
  --color-accent-hover: var(--color-amber-500);

  /* ------------------------------------------------------------------
     2. COLOR — Neutrals
     ------------------------------------------------------------------ */
  --color-black: #0B0D12;
  --color-gray-900: #14171F;
  --color-gray-800: #1F2430;
  --color-gray-700: #383F4E;
  --color-gray-600: #6B7280;
  --color-gray-500: #8B92A0;
  --color-gray-400: #AEB4C0;
  --color-gray-300: #D3D7DE;
  --color-gray-200: #E4E7EC;
  --color-gray-100: #F1F3F6;
  --color-off-white: #F8F9FB;
  --color-white: #FFFFFF;

  /* ------------------------------------------------------------------
     3. COLOR — Semantic (feedback states)
     ------------------------------------------------------------------ */
  --color-success: #1FA97E;
  --color-success-bg: #E7F8F1;
  --color-warning: #E0A02C;
  --color-warning-bg: #FCF3E1;
  --color-error: #E5484D;
  --color-error-bg: #FCEAEA;
  --color-info: var(--color-teal-600);
  --color-info-bg: var(--color-teal-100);

  /* ------------------------------------------------------------------
     4. COLOR — Surfaces & Text
     ------------------------------------------------------------------ */
  --bg-body: var(--color-off-white);
  --bg-surface: var(--color-white);
  --bg-surface-alt: var(--color-gray-100);
  --bg-dark: var(--color-navy-800);
  --bg-dark-alt: var(--color-navy-900);

  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-600);
  --text-muted: var(--color-gray-500);
  --text-on-dark: var(--color-off-white);
  --text-on-dark-muted: rgba(248, 249, 251, 0.7);
  --text-link: var(--color-teal-600);

  --border-color: var(--color-gray-200);
  --border-color-strong: var(--color-gray-300);
  --border-color-dark: rgba(255, 255, 255, 0.12);

  /* ------------------------------------------------------------------
     5. COLOR — Gradients & Glass
     ------------------------------------------------------------------ */
  --gradient-primary: linear-gradient(135deg, var(--color-navy-800) 0%, var(--color-teal-700) 100%);
  --gradient-signature: linear-gradient(135deg, var(--color-navy-800) 0%, var(--color-purple-700) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-amber-600) 0%, var(--color-amber-500) 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(6, 15, 38, 0) 0%, rgba(6, 15, 38, 0.85) 100%);
  --gradient-radial-glow: radial-gradient(circle at 50% 0%, rgba(0, 168, 150, 0.25), transparent 60%);

  --glass-bg: rgba(8, 27, 63, 0.55);
  --glass-bg-light: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-blur: 16px;

  /* ------------------------------------------------------------------
     6. TYPOGRAPHY — Font families
     ------------------------------------------------------------------ */
  --font-ar-heading: 'Cairo', sans-serif;
  --font-ar-body: 'Tajawal', sans-serif;
  --font-en-heading: 'Poppins', sans-serif;
  --font-en-body: 'Poppins', -apple-system, 'Segoe UI', sans-serif;

  /* Active family — swapped by [lang] selectors below */
  --font-heading: var(--font-ar-heading);
  --font-body: var(--font-ar-body);

  /* ------------------------------------------------------------------
     7. TYPOGRAPHY — Fluid scale (clamp: min, preferred, max) */
  --fs-display: clamp(2.75rem, 2rem + 3.5vw, 5.5rem);
  --fs-h1:      clamp(2.25rem, 1.8rem + 2.2vw, 3.75rem);
  --fs-h2:      clamp(1.85rem, 1.5rem + 1.6vw, 2.75rem);
  --fs-h3:      clamp(1.4rem, 1.2rem + 0.9vw, 1.875rem);
  --fs-h4:      clamp(1.15rem, 1.05rem + 0.5vw, 1.375rem);
  --fs-body-lg: clamp(1.05rem, 1rem + 0.25vw, 1.25rem);
  --fs-body:    1rem;
  --fs-body-sm: 0.875rem;
  --fs-caption: 0.75rem;

  --lh-tight: 1.15;
  --lh-heading: 1.3;
  --lh-body: 1.7;
  --lh-loose: 1.9;

  --ls-tight: -0.02em;
  --ls-normal: 0;
  --ls-wide: 0.06em;

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

  /* ------------------------------------------------------------------
     8. SPACING — 8pt base scale
     ------------------------------------------------------------------ */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px  */
  --space-2: 0.5rem;    /* 8px  */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-7: 2.5rem;    /* 40px */
  --space-8: 3rem;      /* 48px */
  --space-9: 4rem;      /* 64px */
  --space-10: 5rem;     /* 80px */
  --space-11: 6rem;     /* 96px */
  --space-12: 8rem;     /* 128px */

  /* Section rhythm — fluid vertical padding for full sections */
  --space-section: clamp(4rem, 3rem + 4vw, 8rem);
  --space-section-sm: clamp(2.5rem, 2rem + 2vw, 4.5rem);

  /* ------------------------------------------------------------------
     9. RADIUS
     ------------------------------------------------------------------ */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-2xl: 40px;
  --radius-full: 999px;

  /* ------------------------------------------------------------------
     10. SHADOWS
     ------------------------------------------------------------------ */
  --shadow-xs: 0 1px 2px rgba(6, 15, 38, 0.06);
  --shadow-sm: 0 2px 8px rgba(6, 15, 38, 0.08);
  --shadow-md: 0 8px 24px rgba(6, 15, 38, 0.10);
  --shadow-lg: 0 16px 40px rgba(6, 15, 38, 0.14);
  --shadow-xl: 0 24px 60px rgba(6, 15, 38, 0.18);
  --shadow-2xl: 0 32px 80px rgba(6, 15, 38, 0.24);

  --shadow-glow-teal: 0 0 0 1px rgba(0, 168, 150, 0.25), 0 8px 30px rgba(0, 168, 150, 0.25);
  --shadow-glow-amber: 0 8px 24px rgba(244, 163, 64, 0.35);
  --shadow-inset: inset 0 1px 2px rgba(6, 15, 38, 0.08);
  --shadow-glass: 0 8px 32px rgba(6, 15, 38, 0.25);

  /* ------------------------------------------------------------------
     11. MOTION
     ------------------------------------------------------------------ */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  /* ------------------------------------------------------------------
     12. LAYOUT — Containers & Grid
     ------------------------------------------------------------------ */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  --container-padding: clamp(1.25rem, 4vw, 3rem);

  --grid-columns: 12;
  --grid-gap: clamp(1rem, 2vw, 2rem);
  --grid-gap-sm: var(--space-4);

  /* ------------------------------------------------------------------
     13. BREAKPOINTS (reference values — read by JS via getPropertyValue;
     media queries themselves must hardcode px, since custom properties
     cannot be interpolated inside @media conditions)
       --bp-sm : 480px   phones (landscape)
       --bp-md : 768px   tablets
       --bp-lg : 1024px  small laptops
       --bp-xl : 1280px  desktops
       --bp-2xl: 1536px  large desktops
     ------------------------------------------------------------------ */
  --bp-sm: 480px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
  --bp-2xl: 1536px;

  /* ------------------------------------------------------------------
     14. Z-INDEX SCALE
     ------------------------------------------------------------------ */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-header: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-toast: 600;
}

/* Latin-language override — swaps active heading/body family when the
   page (or a subtree) is tagged lang="en" */
[lang="en"] {
  --font-heading: var(--font-en-heading);
  --font-body: var(--font-en-body);
}
[lang="ar"] {
  --font-heading: var(--font-ar-heading);
  --font-body: var(--font-ar-body);
}

/* Dark-section context — flip text/border tokens inside any element
   carrying .theme-dark, without redefining every component */
.theme-dark {
  --bg-surface: var(--color-navy-800);
  --bg-surface-alt: var(--color-navy-700);
  --text-primary: var(--text-on-dark);
  --text-secondary: var(--text-on-dark-muted);
  --border-color: var(--border-color-dark);
}