static/shared/css/ui-enhancements-v2.css

/**
 * UI Enhancements V2 - Modern Improvements
 * Advanced visual effects, micro-interactions, and polish
 */

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   🎨 GLASSMORPHISM EFFECTS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(20, 184, 166, 0.18);
  box-shadow: 
    0 8px 32px rgba(13, 115, 119, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.glass-card-dark {
  background: rgba(19, 46, 42, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(45, 212, 191, 0.25);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ✨ GRADIENT ANIMATIONS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.gradient-animated {
  background: linear-gradient(
    135deg,
    var(--teal-light),
    var(--cyan),
    var(--teal),
    var(--cyan-light)
  );
  background-size: 300% 300%;
  animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.gradient-border {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--teal-light), var(--cyan), var(--teal));
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}

.gradient-border:hover::before {
  opacity: 1;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   🎯 MICRO-INTERACTIONS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.hover-lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.hover-scale {
  transition: transform 0.2s ease;
}

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

.hover-glow {
  position: relative;
  transition: all 0.3s ease;
}

.hover-glow::after {
  content: '';
  position: absolute;
  inset: -4px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.3), transparent 70%);
  border-radius: inherit;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.3s;
}

.hover-glow:hover::after {
  opacity: 1;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   📊 ENHANCED STATS CARDS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.stat-card-enhanced {
  position: relative;
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
}

.stat-card-enhanced::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.stat-card-enhanced:hover::before {
  transform: scaleX(1);
}

.stat-card-enhanced:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--teal-light);
}

.stat-icon-wrapper {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.1), rgba(34, 211, 238, 0.1));
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
}

.stat-value-animated {
  font-size: var(--text-3xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   🔘 ENHANCED BUTTONS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.btn-gradient {
  position: relative;
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--cyan-light), var(--teal-light));
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-gradient:hover::before {
  opacity: 1;
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(20, 184, 166, 0.3);
}

.btn-gradient span {
  position: relative;
  z-index: 1;
}

.btn-outline-gradient {
  position: relative;
  background: transparent;
  color: var(--teal);
  border: 2px solid transparent;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  background-clip: padding-box;
  transition: all 0.3s ease;
}

.btn-outline-gradient::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-primary);
  border-radius: inherit;
  z-index: -1;
}

.btn-outline-gradient:hover {
  color: white;
  background: var(--gradient-primary);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   📈 ANIMATED CHARTS & GRAPHS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.chart-container {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  overflow: hidden;
}

.chart-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(45, 212, 191, 0.03) 0%,
    transparent 100%
  );
  pointer-events: none;
}

.sparkline {
  display: inline-block;
  width: 60px;
  height: 24px;
}

.sparkline path {
  stroke: var(--teal);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: drawLine 1s ease-out;
}

@keyframes drawLine {
  from {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
  }
  to {
    stroke-dasharray: 1000;
    stroke-dashoffset: 0;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   🎭 LOADING STATES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.skeleton-enhanced {
  background: linear-gradient(
    90deg,
    var(--mint) 0%,
    var(--aqua-light) 50%,
    var(--mint) 100%
  );
  background-size: 200% 100%;
  animation: shimmerEnhanced 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

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

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   🏷️ ENHANCED BADGES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.badge-gradient {
  background: var(--gradient-primary);
  color: white;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(20, 184, 166, 0.3);
}

.badge-pulse {
  position: relative;
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(20, 184, 166, 0.7);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(20, 184, 166, 0);
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   📱 MOBILE OPTIMIZATIONS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (max-width: 768px) {
  .glass-card {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  
  .hover-lift:hover {
    transform: none;
  }
  
  .stat-card-enhanced:hover {
    transform: none;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   🌙 DARK MODE ENHANCEMENTS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

[data-theme="dark"] .glass-card {
  background: rgba(19, 46, 42, 0.7);
  border-color: rgba(45, 212, 191, 0.25);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(45, 212, 191, 0.1);
}

[data-theme="dark"] .stat-icon-wrapper {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.15), rgba(34, 211, 238, 0.15));
}

[data-theme="dark"] .chart-container::before {
  background: linear-gradient(
    180deg,
    rgba(45, 212, 191, 0.05) 0%,
    transparent 100%
  );
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ⚡ PERFORMANCE OPTIMIZATIONS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (prefers-reduced-motion: reduce) {
  .gradient-animated,
  .hover-lift,
  .hover-scale,
  .hover-glow,
  .skeleton-enhanced,
  .pulse-dot,
  .badge-pulse,
  .sparkline path {
    animation: none !important;
    transition: none !important;
  }
}

/* GPU acceleration for smooth animations */
.hover-lift,
.hover-scale,
.stat-card-enhanced,
.btn-gradient {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}