/* ============================================
   EDGAR ROTH – DESIGN TOKENS
   Direction: Tech Minimal Precision
   Version: 1.0.0
   ============================================ */

:root {
  /* ==================
     COLOR SYSTEM
     ================== */
  
  /* Base Colors */
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-near-black: #0A0A0A;
  
  /* Grayscale Palette */
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #E5E5E5;
  --gray-300: #D4D4D4;
  --gray-400: #A3A3A3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  
  /* Red Accent */
  --red-primary: #C41E3A;
  --red-hover: #A01830;
  --red-light: #FF2D55;
  --red-glow: rgba(196, 30, 58, 0.2);
  
  /* Semantic Colors (Light Theme) */
  --color-bg: var(--color-white);
  --color-bg-subtle: var(--gray-50);
  --color-bg-elevated: var(--color-white);
  --color-text: var(--color-near-black);
  --color-text-subtle: var(--gray-600);
  --color-text-muted: var(--gray-400);
  --color-border: rgba(10, 10, 10, 0.08);
  --color-border-strong: rgba(10, 10, 10, 0.16);
  --color-accent: var(--red-primary);
  --color-accent-hover: var(--red-hover);
  
  /* ==================
     SPACING SYSTEM (8pt base)
     ================== */
  
  --sp-0: 0;
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-5: 40px;
  --sp-6: 48px;
  --sp-7: 56px;
  --sp-8: 64px;
  --sp-9: 72px;
  --sp-10: 80px;
  --sp-11: 96px;
  --sp-12: 112px;
  --sp-14: 128px;
  --sp-16: 160px;
  --sp-20: 192px;
  --sp-24: 224px;
  
  /* ==================
     TYPOGRAPHY SYSTEM
     ================== */
  
  /* Font Families */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Font Sizes (Fluid with clamp) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);      /* 12-14px */
  --text-sm: clamp(0.875rem, 0.85rem + 0.125vw, 1rem);       /* 14-16px */
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);      /* 16-18px */
  --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);    /* 18-20px */
  --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);        /* 20-24px */
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);             /* 24-32px */
  --text-3xl: clamp(2rem, 1.7rem + 1.5vw, 2.75rem);          /* 32-44px */
  --text-4xl: clamp(2.5rem, 2rem + 2.5vw, 3.75rem);          /* 40-60px */
  --text-5xl: clamp(3rem, 2.5rem + 2.5vw, 4.5rem);           /* 48-72px */
  --text-6xl: clamp(3.75rem, 3rem + 3.75vw, 6rem);           /* 60-96px */
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;
  --leading-loose: 1.8;
  
  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.03em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  
  /* Font Weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-black: 900;
  
  /* ==================
     LAYOUT SYSTEM
     ================== */
  
  /* Container Max Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  --container-full: 100%;
  
  /* Container Padding */
  --container-padding: clamp(1.5rem, 5vw, 3rem);
  
  /* Grid System */
  --grid-columns: 12;
  --grid-gap: var(--sp-6);
  
  /* Breakpoints (for JS reference) */
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
  --bp-2xl: 1440px;
  --bp-3xl: 1920px;
  
  /* ==================
     BORDERS & RADII
     ================== */
  
  --border-width: 1px;
  --border-width-thick: 2px;
  
  --radius-none: 0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* ==================
     SHADOWS
     ================== */
  
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 24px 48px rgba(0, 0, 0, 0.16);
  
  --shadow-red-sm: 0 2px 8px var(--red-glow);
  --shadow-red-md: 0 4px 16px var(--red-glow);
  --shadow-red-lg: 0 8px 32px var(--red-glow);
  
  /* ==================
     TRANSITIONS
     ================== */
  
  /* Durations */
  --duration-instant: 0ms;
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 600ms;
  --duration-slower: 800ms;
  
  /* Easing Functions */
  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);      /* Main easing for premium feel */
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* ==================
     Z-INDEX SCALE
     ================== */
  
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
  --z-tooltip: 600;
  
  /* ==================
     MOTION LEVELS
     ================== */
  
  --motion-level: 2; /* 1=minimal, 2=premium (default), 3=showcase */
}

/* ==================
   DARK THEME
   ================== */

[data-theme="dark"] {
  /* Semantic Colors (Dark Theme) */
  --color-bg: var(--color-near-black);
  --color-bg-subtle: var(--gray-900);
  --color-bg-elevated: var(--gray-800);
  --color-text: #F5F5F5;
  --color-text-subtle: var(--gray-400);
  --color-text-muted: var(--gray-500);
  --color-border: rgba(245, 245, 245, 0.12);
  --color-border-strong: rgba(245, 245, 245, 0.24);
  
  /* Red Accent Adjustment */
  --color-accent: var(--red-light);
  --color-accent-hover: #FF4569;
  --red-glow: rgba(255, 45, 85, 0.25);
  
  /* Shadows (darker and more spread) */
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-xl: 0 12px 36px rgba(0, 0, 0, 0.5);
  --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.6);
}

/* ==================
   MOTION PREFERENCES
   ================== */

@media (prefers-reduced-motion: reduce) {
  :root {
    --motion-level: 1;
    --duration-fast: 0ms;
    --duration-base: 0ms;
    --duration-slow: 0ms;
    --duration-slower: 0ms;
  }
}

/* Motion Level Overrides */
[data-motion="minimal"] {
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 300ms;
  --ease-smooth: ease-out;
}

[data-motion="showcase"] {
  --duration-fast: 400ms;
  --duration-base: 600ms;
  --duration-slow: 900ms;
  --duration-slower: 1200ms;
}

/* ==================
   UTILITY CLASSES
   ================== */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--narrow { max-width: var(--container-md); }
.container--wide { max-width: var(--container-2xl); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}