/* ================================================
   MAUVAS Portfolio - Design System
   Modern Minimalist Theme
   ================================================ */

/* ================================================
   CSS Custom Properties (Design Tokens)
   ================================================ */
:root {
  /* Colors - Primary Palette */
  --color-lime: #32CD32;
  --color-light-bg: #F3F4F6;
  --color-slate: #64748B;
  --color-dark: #111827;
  
  /* Colors - Extended Palette */
  --color-white: #FFFFFF;
  --color-border-light: #E5E7EB;
  --color-dark-secondary: #1F2937;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  
  /* Colors - Lime Variations */
  --color-lime-light: #7FE57F;
  --color-lime-dark: #28A428;
  --color-lime-50: rgba(50, 205, 50, 0.05);
  --color-lime-100: rgba(50, 205, 50, 0.1);
  --color-lime-200: rgba(50, 205, 50, 0.2);
  --color-lime-300: rgba(50, 205, 50, 0.3);
  --color-lime-500: rgba(50, 205, 50, 0.5);
  
  /* Typography - Font Families */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-accent: 'Rajdhani', sans-serif;
  
  /* Typography - Font Sizes */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  --text-7xl: 4.5rem;      /* 72px */
  
  /* Typography - Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Typography - Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* 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 */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  
  /* 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;  /* rounded-full */
  
  /* Shadows - Depth System */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Shadows - Colored (Lime) */
  --shadow-lime-sm: 0 1px 2px 0 var(--color-lime-200);
  --shadow-lime-md: 0 4px 6px -1px var(--color-lime-200), 0 2px 4px -2px var(--color-lime-200);
  --shadow-lime-lg: 0 10px 15px -3px var(--color-lime-300), 0 4px 6px -4px var(--color-lime-200);
  
  /* Glassmorphism Effects */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-bg-dark: rgba(255, 255, 255, 0.95);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-blur: blur(12px);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index Scale */
  --z-background: -1;
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}

/* ================================================
   Utility Classes
   ================================================ */

/* Glassmorphism Utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.glass-strong {
  background: var(--glass-bg-dark);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Card Utility */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

/* Text Utilities */
.text-gradient-lime {
  background: linear-gradient(135deg, var(--color-lime) 0%, var(--color-lime-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Button Utilities */
.btn-modern {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--color-lime);
  color: var(--color-white);
  box-shadow: var(--shadow-lime-md);
}

.btn-primary:hover {
  background: var(--color-lime-dark);
  box-shadow: var(--shadow-lime-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-dark);
  border: 2px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--color-lime);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-lime);
  border: 2px solid var(--color-lime);
}

.btn-outline:hover {
  background: var(--color-lime);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* Container Utilities */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-sm {
  max-width: 640px;
}

.container-md {
  max-width: 768px;
}

.container-lg {
  max-width: 1024px;
}

.container-xl {
  max-width: 1280px;
}

/* Gradient Backgrounds */
.bg-gradient-subtle {
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.bg-gradient-lime {
  background: linear-gradient(135deg, var(--color-lime-light) 0%, var(--color-lime) 100%);
}

/* Hover Lift Effect */
.hover-lift {
  transition: all var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Focus States */
.focus-lime:focus {
  outline: 2px solid var(--color-lime);
  outline-offset: 2px;
}

/* Animation Utilities */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-in-down {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fade-in var(--transition-base) ease-out;
}

.animate-slide-in-up {
  animation: slide-in-up var(--transition-slow) ease-out;
}

.animate-slide-in-down {
  animation: slide-in-down var(--transition-slow) ease-out;
}