/* ===================================================
   SABR ENTERPRISES - UNIFIED DESIGN SYSTEM
   Premium, Futuristic, Cohesive
   =================================================== */

/* ==================== CSS VARIABLES ==================== */
:root {
  /* Brand Colors */
  --primary: #6A11CB;
  --primary-light: #8B4FD9;
  --primary-dark: #5209A8;
  --accent: #00C9FF;
  --accent-light: #33D9FF;
  --accent-dark: #0099CC;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00C9FF, #6A11CB);
  --gradient-secondary: linear-gradient(135deg, #6A11CB, #5209A8);
  --gradient-accent: linear-gradient(135deg, #00C9FF, #06b6d4);
  
  /* Neutral Colors - Dark Mode */
  --bg-dark: #0A0A0A;
  --bg-dark-elevated: #1a1a2e;
  --bg-dark-hover: #16213e;
  --text-dark: #FFFFFF;
  --text-dark-muted: #A0A0A0;
  --text-dark-dim: #707070;
  --border-dark: rgba(255, 255, 255, 0.1);
  
  /* Neutral Colors - Light Mode */
  --bg-light: #F9FAFB;
  --bg-light-elevated: #FFFFFF;
  --bg-light-hover: #F3F4F6;
  --text-light: #0A0A0A;
  --text-light-muted: #6B7280;
  --text-light-dim: #9CA3AF;
  --border-light: #E5E7EB;
  
  /* Semantic Colors */
  --success: #10B981;
  --error: #EF4444;
  --warning: #F59E0B;
  --info: #3B82F6;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 25px rgba(106, 17, 203, 0.3);
  --shadow-glow-accent: 0 0 25px rgba(0, 201, 255, 0.3);
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Mode Active (Default) */
body {
  --bg: var(--bg-dark);
  --bg-elevated: var(--bg-dark-elevated);
  --bg-hover: var(--bg-dark-hover);
  --text: var(--text-dark);
  --text-muted: var(--text-dark-muted);
  --text-dim: var(--text-dark-dim);
  --border: var(--border-dark);
  --shadow: var(--shadow-2xl);
}

/* Light Mode */
body.light-theme {
  --bg: var(--bg-light);
  --bg-elevated: var(--bg-light-elevated);
  --bg-hover: var(--bg-light-hover);
  --text: var(--text-light);
  --text-muted: var(--text-light-muted);
  --text-dim: var(--text-light-dim);
  --border: var(--border-light);
  --shadow: var(--shadow-lg);
}

/* ==================== GLOBAL RESETS ==================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: clamp(2.5rem, 6vw, var(--text-6xl));
}

h2 {
  font-size: clamp(2rem, 4vw, var(--text-5xl));
}

h3 {
  font-size: clamp(1.5rem, 3vw, var(--text-3xl));
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent);
}

/* ==================== UTILITY CLASSES ==================== */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
}

.section {
  padding: var(--space-24) 0;
}

.section-sm {
  padding: var(--space-16) 0;
}

.section-lg {
  padding: 120px 0;
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: 600;
  font-family: var(--font-primary);
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 10px 40px rgba(106, 17, 203, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 50px rgba(106, 17, 203, 0.6);
}

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

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

.btn-lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

/* Button Shimmer Effect */
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left var(--transition-slow);
}

.btn-primary:hover::before {
  left: 100%;
}

/* ==================== CARDS ==================== */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  box-shadow: var(--shadow);
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(106, 17, 203, 0.5);
  box-shadow: 0 25px 60px rgba(106, 17, 203, 0.3);
}

.card-interactive {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.card-interactive::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card-interactive:hover::before {
  opacity: 0.05;
}

/* ==================== GRADIENTS ==================== */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-bg {
  background: var(--gradient-primary);
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes shimmer {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 200% center;
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.fade-in-up {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.fade-in-down {
  opacity: 0;
  animation: fadeInDown 0.8s ease forwards;
}

.fade-in-left {
  opacity: 0;
  animation: fadeInLeft 0.8s ease forwards;
}

.fade-in-right {
  opacity: 0;
  animation: fadeInRight 0.8s ease forwards;
}

.scale-in {
  opacity: 0;
  animation: scaleIn 0.6s ease forwards;
}

/* Stagger Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }

/* ==================== FORMS ==================== */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--text);
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(106, 17, 203, 0.1);
  transform: translateY(-2px);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* ==================== SECTION HEADERS ==================== */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-16);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--text-muted);
}

/* ==================== GRID LAYOUTS ==================== */
.grid {
  display: grid;
  gap: var(--space-8);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ==================== GLASSMORPHISM ==================== */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

body.light-theme .glass {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* ==================== ACCESSIBILITY ==================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ==================== RESPONSIVE UTILITIES ==================== */
@media (max-width: 1024px) {
  :root {
    --space-24: 4rem;
  }
}

@media (max-width: 768px) {
  :root {
    --space-16: 3rem;
    --space-24: 3.5rem;
  }
  
  .section-lg {
    padding: 80px 0;
  }
}

/* ==================== PRINT STYLES ==================== */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .navbar,
  .global-theme-toggle,
  .footer {
    display: none;
  }
}