/* ============================================
   MODERN ENHANCEMENTS FOR PRIMESERVICE
   Premium Design System - Unique & Contemporary
   ============================================ */

:root {
  /* Premium Color Palette - Нейтральная */
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  
  /* Dark Mode Colors */
  --bg-dark: #0f172a;
  --bg-elevated: #1e293b;
  --bg-card: #334155;
  
  /* Glass Effects */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* Text Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   GLASSMORPHISM COMPONENTS
   ============================================ */

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
}

.glass-navbar {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

/* ============================================
   PREMIUM ANIMATIONS
   ============================================ */

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

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

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

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

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Entrance Animations */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease-out forwards;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease-out forwards;
}

/* Staggered Animations */
.stagger-container > * {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.stagger-container > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-container > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-container > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-container > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-container > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-container > *:nth-child(6) { animation-delay: 0.6s; }

/* ============================================
   ENHANCED BUTTONS
   ============================================ */

.btn-modern {
  position: relative;
  padding: 14px 32px;
  font-weight: 600;
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-spring);
  cursor: pointer;
  border: none;
}

.btn-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

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

.btn-gradient {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-gradient:active {
  transform: translateY(0);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-glow {
  animation: glowPulse 2s ease-in-out infinite;
}

/* ============================================
   MODERN TYPOGRAPHY ENHANCEMENTS
   ============================================ */

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-glow {
  text-shadow: 
    0 0 10px rgba(99, 102, 241, 0.4),
    0 0 20px rgba(99, 102, 241, 0.2),
    0 0 30px rgba(99, 102, 241, 0.1);
}

.heading-modern {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* ============================================
   CARD ENHANCEMENTS
   ============================================ */

.card-hover-lift {
  transition: all var(--transition-base);
}

.card-hover-lift:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.card-border-gradient {
  position: relative;
  background: var(--bg-card);
  border-radius: 16px;
  padding: 2px;
}

.card-border-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 2px;
  background: var(--accent-gradient);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
}

/* ============================================
   INTERACTIVE EFFECTS
   ============================================ */

.hover-scale {
  transition: transform var(--transition-spring);
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-glow {
  transition: all var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

.cursor-pointer {
  cursor: pointer;
}

/* ============================================
   BACKGROUND EFFECTS
   ============================================ */

.bg-gradient-radial {
  background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
}

.bg-mesh-gradient {
  background: 
    radial-gradient(at 40% 20%, rgba(99, 102, 241, 0.1) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(139, 92, 246, 0.1) 0px, transparent 50%),
    radial-gradient(at 0% 50%, rgba(99, 102, 241, 0.08) 0px, transparent 50%);
}

.tech-grid-bg {
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

/* Film Grain Texture */
.grain-overlay::before {
  content: '';
  position: fixed;
  inset: 0;
  opacity: 0.03;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  z-index: 9999;
}

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

.skeleton::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  animation: shimmer 2s infinite;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 768px) {
  .glass-card {
    border-radius: 12px;
  }
  
  .btn-modern {
    padding: 12px 24px;
  }
  
  .stagger-container > * {
    animation-delay: 0.05s !important;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Styles */
.btn-modern:focus-visible,
.glass-card:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.relative { position: relative; }
.absolute { position: absolute; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }
.rounded-lg { border-radius: 12px; }
.rounded-xl { border-radius: 16px; }
.shadow-lg { box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2); }
.overflow-hidden { overflow: hidden; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }

/* Spacing */
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.m-4 { margin: 1rem; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }

/* Text */
.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.uppercase { text-transform: uppercase; }