/* =====================================================
   IGAS Payment App - Design System Variables
   ===================================================== */

:root {
  /* ===== BRAND COLORS (from IGAS logo) ===== */
  --color-primary: #7AC943;          /* IGAS Green */
  --color-primary-dark: #5EA832;     /* Darker green for hover */
  --color-primary-light: #9EE066;    /* Lighter green */
  --color-accent: #F5A623;           /* IGAS Orange/Gold */
  --color-accent-dark: #D4891A;      /* Darker orange for hover */
  --color-accent-light: #FFCB5C;     /* Lighter orange */

  /* ===== STATUS COLORS ===== */
  --color-success: #10B981;          /* Green - payment complete */
  --color-warning: #F59E0B;          /* Yellow/Orange - awaiting */
  --color-danger: #EF4444;           /* Red - failed/disconnected */
  --color-info: #3B82F6;             /* Blue - processing */

  /* ===== BACKGROUND COLORS ===== */
  --bg-dark: #0F172A;                /* Main dark background */
  --bg-card: #1E293B;                /* Card backgrounds */
  --bg-card-hover: #334155;          /* Card hover state */
  --bg-input: #1E293B;               /* Input field background */
  --bg-overlay: rgba(0, 0, 0, 0.7);  /* Modal overlay */

  /* ===== TEXT COLORS ===== */
  --text-primary: #F8FAFC;           /* Main text - white */
  --text-secondary: #94A3B8;         /* Secondary text - gray */
  --text-muted: #64748B;             /* Muted text */
  --text-dark: #0F172A;              /* Dark text for light backgrounds */

  /* ===== BORDER & DIVIDERS ===== */
  --border-color: #334155;           /* Default border */
  --border-light: #475569;           /* Lighter border */
  --divider: #1E293B;                /* Divider lines */

  /* ===== SHADOWS ===== */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(122, 201, 67, 0.3);

  /* ===== TYPOGRAPHY ===== */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 2rem;      /* 32px */
  --font-size-4xl: 2.5rem;    /* 40px */

  /* ===== SPACING ===== */
  --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 */

  /* ===== BORDER RADIUS ===== */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;  /* Fully rounded */

  /* ===== TRANSITIONS ===== */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;

  /* ===== Z-INDEX LAYERS ===== */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* ===== ANIMATIONS ===== */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes slideIn {
  from { 
    opacity: 0;
    transform: translateY(-10px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(20px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px var(--color-primary); }
  50% { box-shadow: 0 0 20px var(--color-primary), 0 0 30px var(--color-primary); }
}