/* Lumina Studio - Luminous, Colorful & Premium Light Theme */

:root {
  --bg-main: #f8fafc;
  --bg-sidebar: #ffffff;
  --bg-rail: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-subtle: #e2e8f0;
  --border-focus: #a855f7;
}

html {
  scroll-behavior: smooth;
  min-height: 100%;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', sans-serif;
  overflow-x: hidden;
  overflow-y: scroll;
  min-height: 100vh;
}

/* Radiant Multi-Color Ambient Mesh (No Black!) */
.luminous-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: 
    radial-gradient(circle at 10% 15%, rgba(168, 85, 247, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 90% 20%, rgba(244, 63, 94, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(6, 182, 212, 0.14) 0%, transparent 50%),
    radial-gradient(circle at 80% 85%, rgba(245, 158, 11, 0.12) 0%, transparent 40%),
    #f8fafc;
  pointer-events: none;
}

/* Luminous Floating Colorful Orbs */
.orb-glow-1 {
  position: absolute;
  top: -5%;
  left: 20%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.18) 0%, rgba(168, 85, 247, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
}

.orb-glow-2 {
  position: absolute;
  bottom: 10%;
  right: 15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, rgba(236, 72, 153, 0) 70%);
  filter: blur(90px);
  pointer-events: none;
}

/* Crisp Frosted Panels */
.luminous-sidebar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border-subtle);
  box-shadow: 4px 0 24px rgba(15, 23, 42, 0.03);
}

.luminous-rail {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-subtle);
  box-shadow: 4px 0 20px rgba(15, 23, 42, 0.02);
}

.luminous-prompt-bar {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.08);
}

/* High-Energy Vibrant Generate Button */
.btn-luminous-generate {
  background: linear-gradient(135deg, #ec4899 0%, #a855f7 50%, #6366f1 100%);
  color: #ffffff;
  box-shadow: 0 8px 24px -4px rgba(236, 72, 153, 0.4), 0 4px 12px -2px rgba(168, 85, 247, 0.3);
  transition: all 0.25s ease;
}

.btn-luminous-generate:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 12px 30px -4px rgba(236, 72, 153, 0.6), 0 6px 16px -2px rgba(99, 102, 241, 0.4);
}

/* Leonardo Style Switch Checkbox */
.switch-checkbox:checked + .switch-label {
  background: linear-gradient(to right, #ec4899, #a855f7);
}
.switch-checkbox:checked + .switch-label .switch-dot {
  transform: translateX(1.25rem);
}

/* Feed Item Card Styling */
.feed-item {
  position: relative;
  overflow: hidden;
  border-radius: 1.25rem;
  background-color: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.feed-item:hover {
  transform: translateY(-4px);
  border-color: #a855f7;
  box-shadow: 0 16px 35px -8px rgba(168, 85, 247, 0.25);
}

.feed-item .feed-overlay {
  opacity: 0;
  transition: opacity 0.25s ease;
}

.feed-item:hover .feed-overlay {
  opacity: 1;
}

/* Active aspect ratios & pills */
.active-ratio {
  border-color: #a855f7 !important;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.12) 0%, rgba(236, 72, 153, 0.12) 100%) !important;
  color: #7e22ce !important;
  box-shadow: 0 0 14px rgba(168, 85, 247, 0.25);
}

/* Visible, High-Contrast Luminous Scrollbars */
* {
  scrollbar-width: auto;
  scrollbar-color: #ec4899 #f1f5f9;
}

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
  display: block;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-left: 1px solid #e2e8f0;
  border-top: 1px solid #e2e8f0;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #ec4899 0%, #a855f7 50%, #06b6d4 100%);
  border-radius: 8px;
  border: 2px solid #f1f5f9;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #db2777 0%, #9333ea 50%, #0891b2 100%);
  border: 1px solid #e2e8f0;
}

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

/* Ensure Settings rail has smooth, visible scrollbar */
#leo-settings-rail::-webkit-scrollbar {
  width: 10px;
  display: block !important;
}

#leo-settings-rail::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, #ec4899, #a855f7, #6366f1);
  border-radius: 8px;
}

/* Luminous Laser Scanline */
@keyframes luminous-scan {
  0% { transform: translateY(-100%); opacity: 0.8; }
  50% { opacity: 1; }
  100% { transform: translateY(100%); opacity: 0.8; }
}

.luminous-scanner-line {
  position: absolute;
  inset-x: 0;
  top: 50%;
  height: 3px;
  background: linear-gradient(90deg, transparent, #ec4899, #a855f7, #06b6d4, transparent);
  box-shadow: 0 0 15px rgba(236, 72, 153, 0.8);
  animation: luminous-scan 2.2s ease-in-out infinite alternate;
}

/* Luminous Holographic Shimmer */
@keyframes shimmerGlow {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer-text {
  background: linear-gradient(90deg, #ec4899 0%, #8b5cf6 25%, #06b6d4 50%, #ec4899 100%);
  background-size: 200% auto;
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  animation: shimmerGlow 6s linear infinite;
}

/* Glass Card Elevation */
.glass-card-hover {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.glass-card-hover:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 35px -10px rgba(168, 85, 247, 0.2);
  border-color: rgba(168, 85, 247, 0.4);
}

/* Smart Scroll Tooltip Expand Transition */
#smart-scroll-btn:hover {
  box-shadow: 0 12px 30px -4px rgba(236, 72, 153, 0.35), 0 6px 14px -2px rgba(168, 85, 247, 0.25);
}