/* ═══════════════════════════════════════════════════════════════
   KENVERA Design System — CSS Custom Properties
   Enterprise Design Tokens
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* ── Brand Colors — Orange Dominant (PRESERVED) ── */
  --orange: #F58220;
  --orange-light: #FF9A3E;
  --orange-dark: #E06B10;
  --orange-pale: #FFC080;
  --orange-bg: #FFF4E8;
  --orange-bg-deep: #FFE8CC;
  --orange-50: #FFF7ED;
  --orange-100: #FFEDD5;
  --orange-200: #FED7AA;
  --orange-300: #FDBA74;
  --orange-400: #FB923C;
  --orange-500: #F58220;
  --orange-600: #E06B10;
  --orange-700: #C2540A;
  --orange-800: #9A3412;
  --orange-900: #7C2D12;

  /* ── Navy Accent (PRESERVED) ── */
  --navy: #0D2B5C;
  --navy-light: #1A3A70;
  --navy-dark: #071A3A;
  --navy-50: #EFF6FF;
  --navy-100: #DBEAFE;
  --navy-200: #BFDBFE;

  /* ── Neutral Palette ── */
  --white: #FFFFFF;
  --bg-primary: #FFF8F2;
  --bg-secondary: #FFF0E0;
  --bg-warm: #FFFBF7;
  --bg-cool: #F8F9FA;
  --gray-50: #FAFAF9;
  --gray-100: #F5F5F4;
  --gray-200: #E7E5E4;
  --gray-300: #D6D3D1;
  --gray-400: #A8A29E;
  --gray-500: #78716C;
  --gray-600: #57534E;
  --gray-700: #44403C;
  --gray-800: #292524;
  --gray-900: #1C1917;

  /* ── Text Colors (PRESERVED + expanded) ── */
  --text-primary: #1a1a1a;
  --text-secondary: #5a4a3a;
  --text-tertiary: #9a8a7a;
  --text-muted: #b8a898;
  --text-on-dark: rgba(255, 255, 255, 0.92);
  --text-on-dark-muted: rgba(255, 255, 255, 0.72);

  /* ── Glass Effects (PRESERVED) ── */
  --glass: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-strong: rgba(255, 255, 255, 0.35);
  --glass-dark: rgba(0, 0, 0, 0.05);

  /* ── Status Colors ── */
  --success: #22C55E;
  --success-bg: #F0FDF4;
  --error: #EF4444;
  --error-bg: #FEF2F2;
  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
  --info: #3B82F6;
  --info-bg: #EFF6FF;

  /* ── Typography ── */
  --font-heading: 'Poppins', 'Montserrat', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Fluid Type Scale */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.78rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.875rem, 0.83rem + 0.25vw, 1rem);
  --text-lg: clamp(1rem, 0.93rem + 0.35vw, 1.125rem);
  --text-xl: clamp(1.125rem, 1rem + 0.5vw, 1.3rem);
  --text-2xl: clamp(1.35rem, 1.15rem + 0.8vw, 1.7rem);
  --text-3xl: clamp(1.7rem, 1.4rem + 1.2vw, 2.4rem);
  --text-4xl: clamp(2rem, 1.6rem + 1.8vw, 3rem);
  --text-5xl: clamp(2.4rem, 1.8rem + 2.5vw, 3.8rem);
  --text-6xl: clamp(2.8rem, 2rem + 3.5vw, 4.6rem);

  /* Font Weights */
  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;
  --weight-black: 900;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.12;
  --leading-snug: 1.3;
  --leading-normal: 1.55;
  --leading-relaxed: 1.7;
  --leading-loose: 1.85;

  /* Letter Spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;
  --tracking-mega: 0.2em;

  /* ── Spacing Scale (4px base) ── */
  --space-0: 0;
  --space-1: 0.25rem;    /* 4px */
  --space-2: 0.5rem;     /* 8px */
  --space-3: 0.75rem;    /* 12px */
  --space-4: 1rem;       /* 16px */
  --space-5: 1.25rem;    /* 20px */
  --space-6: 1.5rem;     /* 24px */
  --space-7: 1.75rem;    /* 28px */
  --space-8: 2rem;       /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-14: 3.5rem;    /* 56px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  --space-32: 8rem;      /* 128px */

  /* Section Padding */
  --section-py: clamp(4rem, 6vw, 7rem);
  --section-py-sm: clamp(3rem, 4.5vw, 5rem);

  /* ── Border Radius (PRESERVED + expanded) ── */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-2xl: 48px;
  --radius-full: 9999px;

  /* ── Shadows — Elevation System ── */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.16);

  /* Orange Shadows (PRESERVED + expanded) */
  --shadow-orange-sm: 0 2px 20px rgba(245, 130, 32, 0.12);
  --shadow-orange-md: 0 8px 40px rgba(245, 130, 32, 0.2);
  --shadow-orange-lg: 0 20px 60px rgba(245, 130, 32, 0.3);
  --shadow-orange-glow: 0 0 30px rgba(245, 130, 32, 0.25);

  /* Navy Shadows */
  --shadow-navy: 0 6px 25px rgba(13, 43, 92, 0.15);
  --shadow-navy-lg: 0 12px 40px rgba(13, 43, 92, 0.2);

  /* ── Transitions ── */
  --ease-default: cubic-bezier(0.25, 0.8, 0.25, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);

  --transition-fast: 0.15s var(--ease-default);
  --transition: 0.3s var(--ease-default);
  --transition-slow: 0.5s var(--ease-default);
  --transition-spring: 0.4s var(--ease-spring);

  /* Legacy transition variable (PRESERVED for backward compat) */
  --tr: all 0.4s var(--ease-default);

  /* ── Gradients ── */
  --gradient-orange: linear-gradient(135deg, var(--orange-dark) 0%, var(--orange) 45%, var(--orange-light) 80%, #FFB060 100%);
  --gradient-orange-subtle: linear-gradient(135deg, var(--orange-dark), var(--orange), var(--orange-light));
  --gradient-orange-horizontal: linear-gradient(90deg, var(--orange-dark), var(--orange), var(--orange-light));
  --gradient-navy: linear-gradient(135deg, var(--navy), var(--navy-light));
  --gradient-navy-deep: linear-gradient(135deg, var(--navy-dark), var(--navy));
  --gradient-warm: linear-gradient(135deg, #FFF8F2, #FFE8CC);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.05));

  /* ── Z-Index Scale ── */
  --z-behind: -1;
  --z-base: 0;
  --z-above: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-topbar: 1001;
  --z-navbar: 1000;
  --z-overlay: 2000;
  --z-modal: 5000;
  --z-lightbox: 10000;
  --z-loader: 100000;
  --z-cursor: 99999;

  /* ── Layout ── */
  --container-max: 1320px;
  --container-narrow: 900px;
  --container-wide: 1440px;
  --container-px: clamp(1rem, 3vw, 1.5rem);

  /* ── Navbar ── */
  --topbar-height: 38px;
  --navbar-height: 80px;
  --navbar-height-scrolled: 68px;
  /* Aliases for enterprise.css */
  --topbar-h: 38px;
  --navbar-h: 80px;

  /* ── Breakpoints (for reference — used in media queries) ── */
  /* --bp-sm: 480px; */
  /* --bp-md: 768px; */
  /* --bp-lg: 900px; */
  /* --bp-xl: 1200px; */
  /* --bp-2xl: 1440px; */
}

/* ── Dark mode preparation (optional future use) ── */
@media (prefers-color-scheme: dark) {
  :root {
    /* Can be activated later */
  }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0.01ms;
    --transition: 0.01ms;
    --transition-slow: 0.01ms;
    --transition-spring: 0.01ms;
    --tr: all 0.01ms;
  }
}