/* ==========================================================================
   Yepkart Technology - Premium Design System & Animations
   ========================================================================== */

/* Custom Properties & Design Tokens */
:root {
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #1d4ed8 50%, #1e40af 100%);
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #d946ef 100%);
  --glow-gradient: radial-gradient(circle, rgba(37, 99, 235, 0.25) 0%, rgba(139, 92, 246, 0.1) 50%, rgba(0, 0, 0, 0) 70%);
  --dark-surface: #0f172a;
  --dark-surface-elevated: #1e293b;
  --glass-bg-light: rgba(255, 255, 255, 0.85);
  --glass-border-light: rgba(226, 232, 240, 0.8);
  --glass-bg-dark: rgba(15, 23, 42, 0.85);
  --glass-border-dark: rgba(51, 65, 85, 0.5);
}

/* Smooth Scrolling & Universal Tweaks */
html {
  scroll-behavior: smooth;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

body {
  overflow-x: hidden;
}

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

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

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

@keyframes pulseGlow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.08); }
}

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

@keyframes marquee {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

/* Helper Animation Classes */
.animate-fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-float {
  animation: floatAnim 4s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulseGlow 6s ease-in-out infinite;
}

/* Scroll Animation Trigger Classes */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

/* Gradient & Typography Effects */
.text-gradient {
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 40%, #0284c7 70%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #0284c7 0%, #06b6d4 50%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-purple {
  background: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Glassmorphism & Cards */
.glass-nav {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.dark .glass-nav {
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid rgba(51, 65, 85, 0.6);
}

.glass-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 30px -10px rgba(37, 99, 235, 0.12), 0 8px 15px -6px rgba(15, 23, 42, 0.08);
  border-color: rgba(147, 197, 253, 0.8);
}

.dark .glass-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(51, 65, 85, 0.8);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.25);
}

.dark .glass-card:hover {
  border-color: rgba(96, 165, 250, 0.5);
  box-shadow: 0 20px 30px -10px rgba(37, 99, 235, 0.3);
}

/* Premium Buttons */
.btn-primary-glow {
  background: var(--primary-gradient);
  color: #ffffff;
  position: relative;
  z-index: 1;
  overflow: hidden;
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px 0 rgba(37, 99, 235, 0.45);
}

.btn-primary-glow:hover::before {
  opacity: 1;
}

.btn-secondary-glass {
  background: rgba(255, 255, 255, 0.9);
  color: #1e40af;
  border: 1px solid rgba(191, 219, 254, 0.8);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-secondary-glass:hover {
  background: rgba(239, 246, 255, 1);
  border-color: rgba(147, 197, 253, 1);
  color: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.15);
}

/* Ambient Glow Orbs */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.glow-orb-primary {
  background: rgba(37, 99, 235, 0.18);
}

.glow-orb-purple {
  background: rgba(139, 92, 246, 0.15);
}

.glow-orb-cyan {
  background: rgba(6, 182, 212, 0.15);
}

/* Hero Badge */
.pill-badge {
  background: rgba(239, 246, 255, 0.9);
  border: 1px solid rgba(191, 219, 254, 0.8);
  color: #1d4ed8;
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
}

/* Bento Grid Cards */
.bento-card {
  position: relative;
  overflow: hidden;
  border-radius: 1.25rem;
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: rgba(147, 197, 253, 0.9);
  box-shadow: 0 16px 32px -8px rgba(37, 99, 235, 0.12);
}

.dark .bento-card {
  background: #1e293b;
  border-color: rgba(51, 65, 85, 0.8);
}

/* Infinite Marquee */
.marquee-container {
  display: flex;
  overflow: hidden;
  user-select: none;
  gap: 2rem;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.marquee-content {
  flex-shrink: 0;
  display: flex;
  justify-content: space-around;
  min-width: 100%;
  gap: 2rem;
  animation: marquee 25s linear infinite;
}

.marquee-container:hover .marquee-content {
  animation-play-state: paused;
}

/* Back to Top Button */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateY(10px);
}

#back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #94a3b8;
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

/* Mobile Drawer Smoothness */
#mobile-drawer {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
}

#mobile-backdrop {
  transition: opacity 0.35s ease;
}