/**
 * Modern Design System - PresentMe
 * Inspired by modern UI trends: Glassmorphism, Neumorphism, Vibrant Gradients
 */

:root {
  /* Color Palette - Modern & Vibrant */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  --accent-50: #fdf4ff;
  --accent-100: #fae8ff;
  --accent-200: #f5d0fe;
  --accent-300: #f0abfc;
  --accent-400: #e879f9;
  --accent-500: #d946ef;
  --accent-600: #c026d3;
  --accent-700: #a21caf;
  --accent-800: #86198f;
  --accent-900: #701a75;

  --success-400: #4ade80;
  --success-500: #22c55e;
  --success-600: #16a34a;

  --warning-400: #fbbf24;
  --warning-500: #f59e0b;
  --warning-600: #d97706;

  --danger-400: #f87171;
  --danger-500: #ef4444;
  --danger-600: #dc2626;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-sunset: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --gradient-ocean: linear-gradient(135deg, #2e3192 0%, #1bffff 100%);
  --gradient-fire: linear-gradient(135deg, #ff6b6b 0%, #feca57 100%);
  --gradient-cosmic: linear-gradient(135deg, #5f72bd 0%, #9b23ea 100%);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);

  /* Dark Theme */
  --bg-primary: #0a0a0f;
  --bg-secondary: #141419;
  --bg-tertiary: #1e1e24;

  /* Surface colors with depth */
  --surface-0: rgba(20, 20, 25, 0.4);
  --surface-1: rgba(30, 30, 36, 0.6);
  --surface-2: rgba(40, 40, 48, 0.8);
  --surface-3: rgba(50, 50, 60, 0.9);

  /* Text colors */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.85);
  --text-tertiary: rgba(255, 255, 255, 0.6);
  --text-disabled: rgba(255, 255, 255, 0.38);

  /* Shadows - Layered for depth */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.16), 0 2px 6px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.24), 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.32), 0 8px 20px rgba(0, 0, 0, 0.16);
  --shadow-2xl: 0 32px 64px rgba(0, 0, 0, 0.40), 0 12px 32px rgba(0, 0, 0, 0.24);

  /* Glow effects */
  --glow-primary: 0 0 20px rgba(59, 130, 246, 0.5), 0 0 40px rgba(59, 130, 246, 0.3);
  --glow-accent: 0 0 20px rgba(217, 70, 239, 0.5), 0 0 40px rgba(217, 70, 239, 0.3);
  --glow-success: 0 0 20px rgba(34, 197, 94, 0.5), 0 0 40px rgba(34, 197, 94, 0.3);

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Z-index layers */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-overlay: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* Modern scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--surface-0);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-500), var(--accent-500));
  border-radius: var(--radius-sm);
  transition: background var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-400), var(--accent-400));
}

/* Selection */
::selection {
  background: rgba(59, 130, 246, 0.3);
  color: var(--text-primary);
}

/* Focus visible - modern outline */
*:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}