/* ==========================================================================
   RILO GITHUB PAGES LANDING WEBSITE - MASTER STYLESHEET
   ========================================================================== */

/* 1. Tailwind CDN fallback & Core CSS Variables */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

:root {
  --rilo-bg-dark: #09090b;
  --rilo-surface-dark: #121215;
  --rilo-elevated-dark: #18181b;
  --rilo-border-dark: #27272a;
  --rilo-accent-indigo: #6366f1;
  --rilo-accent-indigo-hover: #4f46e5;
  --rilo-accent-indigo-light: #818cf8;
  --rilo-text-primary: #f4f4f5;
  --rilo-text-secondary: #a1a1aa;
  --rilo-text-muted: #71717a;
}

/* 2. Global Resets & Typography */
html {
  scroll-behavior: smooth;
  background-color: var(--rilo-bg-dark);
  color: var(--rilo-text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
}

body {
  background-color: #09090b;
  color: #f4f4f5;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 3. Sticky Navigation Header Styles */
#site-header.scrolled {
  background-color: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: rgba(39, 39, 42, 0.8);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

/* 4. Custom Utility Classes */
.bg-rilo-dark {
  background-color: #09090b;
}

.text-rilo-light {
  color: #f4f4f5;
}

.font-mono {
  font-family: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
}

/* 5. Custom Glow & Glassmorphism Effects */
.glass-panel {
  background: rgba(18, 18, 21, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(39, 39, 42, 0.8);
}

.glow-indigo {
  box-shadow: 0 0 60px -15px rgba(99, 102, 241, 0.25);
}

/* 6. Screenshot Lightbox & Zoom Interactions */
.lightbox-trigger {
  transition: transform 0.3s ease, filter 0.3s ease;
}

.lightbox-trigger:hover {
  filter: brightness(1.05);
}

#lightbox.active {
  display: flex !important;
  opacity: 1 !important;
}

/* 7. Animations & Scroll Reveal */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* 8. Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 9. Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #09090b;
}

::-webkit-scrollbar-thumb {
  background: #27272a;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3f3f46;
}