/* ==========================================================================
   APPHARBOR CENTRAL DESIGN TOKEN CONTRACT
   Supports: BentoFlow, AeroGlass, NeonFocus, EcoCorporate
   ========================================================================== */

:root {
  /* Typography Scale */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-md: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 1.875rem;  /* 30px */
  --font-size-3xl: 2.25rem;   /* 36px */
  --font-size-4xl: 3rem;      /* 48px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing Scale */
  --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-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */

  /* Radii Scale */
  --radius-xs: 0.25rem;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Layout Dimensions */
  --container-max-width: 1240px;
  --navbar-height: 4.25rem;
  --sidebar-width: 17.5rem;
  --modal-max-width: 32rem;

  /* Z-Index Layers */
  --z-nav: 100;
  --z-dropdown: 200;
  --z-sticky: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-toast: 600;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   DENSITY PREFERENCES
   ========================================================================== */
[data-density="comfortable"], :root {
  --btn-padding-y: var(--space-3);
  --btn-padding-x: var(--space-5);
  --input-padding-y: var(--space-3);
  --input-padding-x: var(--space-4);
  --table-cell-padding: var(--space-4) var(--space-4);
  --card-padding: var(--space-6);
  --grid-gap: var(--space-6);
}

[data-density="compact"] {
  --btn-padding-y: var(--space-2);
  --btn-padding-x: var(--space-3);
  --input-padding-y: var(--space-2);
  --input-padding-x: var(--space-3);
  --table-cell-padding: var(--space-2) var(--space-3);
  --card-padding: var(--space-4);
  --grid-gap: var(--space-4);
}

/* ==========================================================================
   THEME A: BENTOFLOW (Default)
   Friendly, modern, modular, card-based with coral & mint accents.
   ========================================================================== */
[data-theme="bentoflow"], :root {
  --color-background: #F8F9FA;
  --color-surface: #FFFFFF;
  --color-surface-elevated: #FFFFFF;
  --color-surface-muted: #F1F3F5;
  
  --color-text: #212529;
  --color-text-muted: #6C757D;
  --color-text-inverse: #FFFFFF;

  --color-primary: #FF6B6B;
  --color-primary-hover: #FA5252;
  --color-primary-subtle: #FFF5F5;
  --color-primary-contrast: #FFFFFF;

  --color-secondary: #20C997;
  --color-secondary-hover: #12B886;
  --color-tertiary: #845EF7;

  --color-success: #20C997;
  --color-warning: #FCC419;
  --color-danger: #FA5252;
  --color-info: #339AF0;

  --color-border: #E9ECEF;
  --color-border-hover: #CED4DA;
  --color-focus: rgba(255, 107, 107, 0.4);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  
  --backdrop-filter: none;
  --card-border-width: 1px;
}

/* ==========================================================================
   THEME B: AEROGLASS
   Premium, futuristic dark glassmorphism with cyan & magenta accents.
   ========================================================================== */
[data-theme="aeroglass"] {
  --color-background: #0F172A;
  --color-surface: rgba(30, 41, 59, 0.7);
  --color-surface-elevated: rgba(51, 65, 85, 0.8);
  --color-surface-muted: rgba(15, 23, 42, 0.8);

  --color-text: #FFFFFF;
  --color-text-muted: #94A3B8;
  --color-text-inverse: #0F172A;

  --color-primary: #00E5FF;
  --color-primary-hover: #33ECFF;
  --color-primary-subtle: rgba(0, 229, 255, 0.12);
  --color-primary-contrast: #0F172A;

  --color-secondary: #FF007F;
  --color-secondary-hover: #FF3399;
  --color-tertiary: #A855F7;

  --color-success: #00E5FF;
  --color-warning: #F59E0B;
  --color-danger: #FF007F;
  --color-info: #38BDF8;

  --color-border: rgba(255, 255, 255, 0.12);
  --color-border-hover: rgba(255, 255, 255, 0.25);
  --color-focus: rgba(0, 229, 255, 0.5);

  --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.4);
  --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px 0 rgba(0, 0, 0, 0.6);

  --backdrop-filter: blur(16px);
  --card-border-width: 1px;
}

/* ==========================================================================
   THEME C: NEONFOCUS
   High-contrast, keyboard-first developer dark mode with green & yellow.
   ========================================================================== */
[data-theme="neonfocus"] {
  --color-background: #0D0D0D;
  --color-surface: #1E1E1E;
  --color-surface-elevated: #282828;
  --color-surface-muted: #141414;

  --color-text: #E0E0E0;
  --color-text-muted: #8E8E8E;
  --color-text-inverse: #000000;

  --color-primary: #00FF66;
  --color-primary-hover: #33FF85;
  --color-primary-subtle: rgba(0, 255, 102, 0.1);
  --color-primary-contrast: #000000;

  --color-secondary: #FFD600;
  --color-secondary-hover: #FFE033;
  --color-tertiary: #3388FF;

  --color-success: #00FF66;
  --color-warning: #FFD600;
  --color-danger: #FF3333;
  --color-info: #3388FF;

  --color-border: #333333;
  --color-border-hover: #555555;
  --color-focus: #00FF66;

  --shadow-sm: none;
  --shadow-card: none;
  --shadow-lg: none;

  --backdrop-filter: none;
  --card-border-width: 2px;
}

/* ==========================================================================
   THEME D: ECOCORPORATE
   Trustworthy, clean enterprise light theme with emerald & slate.
   ========================================================================== */
[data-theme="ecocorporate"] {
  --color-background: #FFFFFF;
  --color-surface: #F8FAFC;
  --color-surface-elevated: #FFFFFF;
  --color-surface-muted: #F1F5F9;

  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-inverse: #FFFFFF;

  --color-primary: #10B981;
  --color-primary-hover: #059669;
  --color-primary-subtle: #ECFDF5;
  --color-primary-contrast: #FFFFFF;

  --color-secondary: #3B82F6;
  --color-secondary-hover: #2563EB;
  --color-tertiary: #6366F1;

  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;

  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;
  --color-focus: rgba(16, 185, 129, 0.4);

  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-card: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);

  --backdrop-filter: none;
  --card-border-width: 1px;
}

/* ==========================================================================
   ACCESSIBILITY: REDUCED MOTION PREFERENCE
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}