/* ==========================================================================
   Minimal & Modern Design System — Token Source of Truth
   Inspired by Reference Designs 1, 4, and 5 (Rich Vibrant Edition)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=JetBrains+Mono:wght@400;500&family=Vazirmatn:wght@400;500;600;700&display=swap');

:root {
  /* Surface & Background Tokens */
  --color-canvas-light:  #FAFAFC;   /* Main page background */
  --color-surface-white: #FFFFFF;   /* Card & container background */
  --color-surface-soft:  #F8FAFC;   /* Soft tinted section background */
  --color-surface-hover: #F1F5F9;   /* Interactive element hover */
  
  /* Text & Neutral Tokens */
  --color-text-main:    #0F172A;   /* Main headings - high contrast dark slate */
  --color-text-body:    #334155;   /* Body text - readable dark slate */
  --color-text-muted:   #64748B;   /* Subtitles & captions - slate 500 */
  --color-border:       #E2E8F0;   /* Clean light border */
  --color-border-subtle:#F1F5F9;   /* Subtle divider border */

  /* Vibrant Accent Palette (Breaking Stark White) */
  --color-primary:        #2563EB; /* Royal Blue */
  --color-primary-hover:  #1D4ED8;
  --color-primary-light:  #EFF6FF;
  --color-primary-border: #BFDBFE;

  --color-accent-indigo:  #4F46E5;
  --color-accent-purple:  #7C3AED;
  --color-accent-emerald: #10B981;
  --color-accent-amber:   #F59E0B;
  --color-accent-rose:    #F43F5E;
  --color-accent-cyan:    #06B6D4;

  /* Status Colors */
  --color-danger:   #EF4444;
  --color-success:  #10B981;
  --color-warning:  #F59E0B;

  /* Shadow & Elevation Tokens */
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.08), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 20px 40px -6px rgba(37, 99, 235, 0.14), 0 8px 16px -4px rgba(15, 23, 42, 0.06);

  /* Typography Tokens */
  --font-en-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en-body:    'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:       'JetBrains Mono', monospace;

  /* Persian Modern Fonts (Peyda #1 priority, Estedad #2, Vazirmatn fallback) */
  --font-fa-heading: 'Peyda', 'Estedad', 'Vazirmatn', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-fa-body:    'Peyda', 'Estedad', 'Vazirmatn', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Default Active Fonts (English / LTR) */
  --font-heading:    var(--font-en-heading);
  --font-body:       var(--font-en-body);

  --text-hero:      clamp(2.75rem, 5.5vw, 4.5rem);
  --text-hero-lg:   clamp(3rem, 6.5vw, 5rem);
  --text-eyebrow:   0.85rem;
  --text-section:   clamp(2rem, 3.5vw, 2.75rem);
  --text-card:      1.25rem;
  --text-body:      1rem;
  --text-code:      0.875rem;

  /* Spacing Tokens */
  --space-1:  4px;   --space-2:  8px;   --space-3:  12px;
  --space-4:  16px;  --space-6:  24px;  --space-8:  32px;
  --space-12: 48px;  --space-16: 64px;  --space-24: 96px;

  /* Border Radius */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* Backward Compatibility Remaps */
  --color-bg:             var(--color-canvas-light);
  --color-surface:        var(--color-surface-white);
  --color-surface-raised: var(--color-surface-white);
  --color-text:           var(--color-text-main);
  --color-text-secondary: var(--color-text-body);
  --glass-bg:             var(--color-surface-white);
  --glass-border:         var(--color-border);
  --glass-blur:           none;
  --space-section:        3.5rem;

  /* Focus Ring */
  --focus-ring:        2px solid var(--color-primary);
  --focus-ring-offset: 2px;
}

/* Global Resets & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-canvas-light);
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text-body);
  background-color: var(--color-canvas-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}


h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-main);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-hero); font-weight: 800; }
h2 { font-size: var(--text-section); font-weight: 700; }
h3 { font-size: var(--text-card); font-weight: 600; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

code, pre {
  font-family: var(--font-mono);
  font-size: var(--text-code);
}

img { max-width: 100%; height: auto; }

/* Utility Classes */
.text-gradient {
  background: linear-gradient(135deg, var(--color-text-main) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-primary { color: var(--color-primary) !important; }
.text-muted   { color: var(--color-text-muted) !important; }

/* Cards (Soft Elevation & Border Accents) */
.glass-panel,
.glass-card {
  background: var(--color-surface-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-hover);
}

/* Multi-colored Technology Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.badge-primary {
  background: #EFF6FF !important;
  color: #1D4ED8 !important;
  border: 1px solid #93C5FD !important;
}

.badge-react {
  background: #E0F2FE !important;
  color: #0369A1 !important;
  border: 1px solid #7DD3FC !important;
}

.badge-dotnet {
  background: #F3E8FF !important;
  color: #6B21A8 !important;
  border: 1px solid #D8B4FE !important;
}

.badge-ts {
  background: #EFF6FF !important;
  color: #1D4ED8 !important;
  border: 1px solid #93C5FD !important;
}

.badge-docker {
  background: #E0F2FE !important;
  color: #0369A1 !important;
  border: 1px solid #7DD3FC !important;
}

.badge-db {
  background: #ECFDF5 !important;
  color: #047857 !important;
  border: 1px solid #6EE7B7 !important;
}

.badge-git {
  background: #FFF7ED !important;
  color: #C2410C !important;
  border: 1px solid #FDBA74 !important;
}


/* Primary & Secondary Buttons */
.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
  background: var(--color-surface-white);
  color: var(--color-text-main);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--color-surface-soft);
  color: var(--color-primary);
  border-color: var(--color-primary-border);
  transform: translateY(-2px);
}

/* Focus Ring */
:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}
:focus:not(:focus-visible) { outline: none; }