@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Oxanium:wght@400;500;600;700&display=swap');

:root {
  /* Colors - Dark Mode Default */
  --bg-dark: #050811;
  --bg-dark-mesh: radial-gradient(circle at 50% 50%, #0c152b 0%, #050811 100%);
  --panel-bg: rgba(13, 20, 38, 0.65);
  --panel-bg-solid: #0d1426;
  --panel-border: rgba(0, 245, 255, 0.12);
  --panel-border-hover: rgba(0, 245, 255, 0.3);
  
  /* Neon Accents */
  --neon-cyan: #00f5ff;
  --neon-blue: #0066ff;
  --neon-green: #10b981;
  --neon-pink: #f43f5e;
  --neon-orange: #ff7b00;
  --neon-purple: #a855f7;
  
  /* Gradients */
  --grad-cyan: linear-gradient(135deg, #00f5ff, #0066ff);
  --grad-green: linear-gradient(135deg, #10b981, #059669);
  --grad-pink: linear-gradient(135deg, #f43f5e, #be123c);
  --grad-orange: linear-gradient(135deg, #ff7b00, #ea580c);
  --grad-panel: linear-gradient(145deg, rgba(16, 26, 50, 0.8), rgba(8, 12, 24, 0.85));
  
  /* Text */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dark: #0f172a;
  
  /* Fonts */
  --font-main: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'Oxanium', monospace;
  
  /* Borders and Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-neon-cyan: 0 0 20px rgba(0, 245, 255, 0.25);
  --shadow-neon-pink: 0 0 20px rgba(244, 63, 94, 0.35);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Overrides */
body.light-mode {
  --bg-dark: #f8fafc;
  --bg-dark-mesh: radial-gradient(circle at 50% 50%, #e2e8f0 0%, #f1f5f9 100%);
  --panel-bg: rgba(255, 255, 255, 0.75);
  --panel-bg-solid: #ffffff;
  --panel-border: rgba(0, 102, 255, 0.12);
  --panel-border-hover: rgba(0, 102, 255, 0.3);
  
  /* Text adjustments */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  /* Layout adjustments */
  --grad-panel: linear-gradient(145deg, rgba(255, 255, 255, 0.85), rgba(241, 245, 249, 0.9));
  --shadow-glass: 0 8px 32px 0 rgba(148, 163, 184, 0.18);
  
  /* Accent fine-tuning for visibility in light mode */
  --neon-cyan: #0088ff;
  --panel-border: rgba(0, 136, 255, 0.18);
  --grad-cyan: linear-gradient(135deg, #0088ff, #0066ff);
  --shadow-neon-cyan: 0 0 20px rgba(0, 136, 255, 0.25);
}

/* Hide off-screen canvas used for frame capture */
canvas { display: none; }

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-dark);
  background-image: var(--bg-dark-mesh);
  color: var(--text-primary);
  font-family: var(--font-main);
  height: 100vh;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(5, 8, 17, 0.05);
}
body.light-mode ::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.5);
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 245, 255, 0.25);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
body.light-mode ::-webkit-scrollbar-thumb {
  background: rgba(0, 136, 255, 0.25);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 245, 255, 0.5);
}
body.light-mode ::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 136, 255, 0.5);
}

/* Theme Toggle Button (shared across pages) */
.theme-toggle-btn {
  padding: 6px;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: inherit;
  cursor: pointer;
  transition: var(--transition);
}
body.light-mode .theme-toggle-btn {
  border-color: rgba(0, 0, 0, 0.15);
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--panel-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass);
  transition: var(--transition);
}

.glass-panel:hover {
  border-color: var(--panel-border-hover);
}

/* Dynamic Mesh Backgrounds */
.mesh-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.mesh-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.15;
  mix-blend-mode: screen;
}
body.light-mode .mesh-glow {
  opacity: 0.08;
  mix-blend-mode: multiply;
}
.mg-1 { width: 600px; height: 600px; background: radial-gradient(circle, var(--neon-blue), transparent); top: -200px; left: -100px; }
.mg-2 { width: 500px; height: 500px; background: radial-gradient(circle, var(--neon-purple), transparent); bottom: -150px; right: -100px; }
.mg-3 { width: 400px; height: 400px; background: radial-gradient(circle, var(--neon-cyan), transparent); top: 40%; right: 30%; }

/* Grid Overlay */
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 245, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

body.light-mode .grid-overlay {
  background-image: 
    linear-gradient(rgba(0, 102, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 102, 255, 0.015) 1px, transparent 1px);
}