/* ==========================================================================
   EDURICH INTERNATIONAL CAMPUS - DESIGN TOKENS & SYSTEM VARIABLES
   Source of Truth: EDURICH WEBSITE DEVELOPMENT.pdf & UI Design References
   ========================================================================== */

:root {
  /* Brand Primary Colors */
  --color-primary: #C40062;           /* Edurich Signature Magenta / Deep Pink */
  --color-primary-hover: #A00050;     /* Deeper Magenta for hover/active */
  --color-primary-light: #FDF2F8;     /* Ultra soft pink background tint */
  --color-primary-muted: #FCE7F3;     /* Soft pink border / badge accent */
  --color-primary-glow: rgba(196, 0, 98, 0.25);

  /* Dark & Slate Neutrals */
  --color-dark-nav: #0B1325;          /* Top bar & footer deep midnight */
  --color-dark-surface: #111B33;      /* Secondary dark panel */
  --color-text-main: #0F172A;         /* Primary heading & body text (Slate-900) */
  --color-text-muted: #64748B;        /* Secondary supporting text (Slate-500) */
  --color-text-light: #94A3B8;        /* Tertiary text & dark mode subtext */
  --color-text-white: #FFFFFF;        /* Pure white */

  /* Surface & Border Colors */
  --color-bg-body: #F8FAFC;          /* Clean subtle off-white background */
  --color-bg-card: #FFFFFF;          /* Pure white card background */
  --color-bg-alt: #F1F5F9;           /* Soft grey section background */
  --color-border: #E2E8F0;           /* Clean card & divider border */
  --color-border-light: #F1F5F9;     /* Ultra faint divider */

  /* Semantic Feedback */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;

  /* Typography */
  --font-family-base: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-family-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.844rem;    /* 13.5px */
  --font-size-base: 0.938rem;  /* 15px */
  --font-size-md: 1.063rem;    /* 17px */
  --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: 2.875rem;   /* 46px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.65;

  /* Elevation Shadows (Taste-Skill Refined Multi-Layer) */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 20px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.03);
  --shadow-xl: 0 20px 28px -4px rgba(15, 23, 42, 0.09), 0 8px 10px -4px rgba(15, 23, 42, 0.03);
  --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-hover: 0 14px 28px -4px rgba(15, 23, 42, 0.08), 0 6px 12px -2px rgba(196, 0, 98, 0.06);

  /* Border Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Spacing Scale */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 80px;

  /* Layout Max Widths */
  --container-max-width: 1240px;
  --header-height-top: 38px;
  --header-height-main: 76px;

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.32s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}