frontend/src/index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  body {
    @apply text-slate-800 antialiased font-sans selection:bg-brand-500 selection:text-white;
    background-color: #edf2f7;
    background-image: 
      radial-gradient(circle at 1px 1px, rgba(100, 116, 139, 0.24) 1.25px, transparent 1.25px),
      radial-gradient(ellipse at 12% 0%, rgba(99, 102, 241, 0.085) 0%, transparent 50%),
      radial-gradient(ellipse at 88% 0%, rgba(13, 148, 136, 0.075) 0%, transparent 50%),
      radial-gradient(ellipse at 50% 100%, rgba(147, 51, 234, 0.045) 0%, transparent 60%);
    background-size: 24px 24px, 100% 100%, 100% 100%, 100% 100%;
    background-attachment: fixed;
  }
}

/* Custom smooth scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
  border: 2px solid #f1f5f9;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Professional research card styling */
.pro-card {
  background: #ffffff;
  border: 1px solid rgba(203, 213, 225, 0.85);
  box-shadow: 
    0 1px 3px 0 rgba(15, 23, 42, 0.04),
    0 8px 24px -4px rgba(15, 23, 42, 0.06),
    inset 0 1px 0 0 rgba(255, 255, 255, 1.0);
  border-radius: 20px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.pro-card:hover {
  border-color: rgba(167, 139, 250, 0.6);
  box-shadow: 
    0 2px 6px 0 rgba(15, 23, 42, 0.04),
    0 16px 36px -6px rgba(99, 102, 241, 0.1),
    inset 0 1px 0 0 rgba(255, 255, 255, 1.0);
}

/* Sub-panel styling for inner instrument decks */
.pro-panel-subtle {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: inset 0 1px 2px 0 rgba(15, 23, 42, 0.02);
  border-radius: 14px;
}

/* Glassmorphic card styling */
.glass-panel {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(226, 232, 240, 0.85);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
}

.glass-panel-hover {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-panel-hover:hover {
  border-color: rgba(167, 139, 250, 0.6);
  box-shadow: 0 12px 30px -4px rgba(109, 40, 217, 0.1), 0 4px 8px -2px rgba(15, 23, 42, 0.03);
  transform: translateY(-1px);
}

/* Ambient glowing accents */
.glow-badge-purple {
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.22);
}

.glow-badge-teal {
  box-shadow: 0 0 12px rgba(13, 148, 136, 0.22);
}

.glow-badge-emerald {
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.22);
}

/* Endoscopy dark frame styling */
.endo-frame {
  position: relative;
  background: radial-gradient(circle at center, #0f172a 0%, #020617 100%);
  border: 1px solid rgba(51, 65, 85, 0.5);
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6), 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Subtle animation pulses */
@keyframes pulse-subtle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.03); }
}

.animate-pulse-subtle {
  animation: pulse-subtle 3s ease-in-out infinite;
}

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

.animate-shimmer {
  animation: shimmer 2.5s infinite;
}