@import "tailwindcss";
@import "@fontsource/geist/400.css";
@import "@fontsource/geist/500.css";
@import "@fontsource/geist/600.css";
@import "@fontsource/geist/700.css";
@import "@fontsource/ibm-plex-sans/400.css";
@import "@fontsource/ibm-plex-sans/500.css";
@import "@fontsource/ibm-plex-sans/600.css";

@custom-variant dark (&:is(.dark *));

/* Design System Tokens */
:root {
  /* Colors - Professional Blue-Gray Palette */
  --background: 0 0% 100%;
  --foreground: 220 14% 18%;
  --card: 0 0% 100%;
  --card-foreground: 220 14% 18%;
  --popover: 0 0% 100%;
  --popover-foreground: 220 14% 18%;
  
  /* Primary - Professional Blue */
  --primary: 221 83% 53%;
  --primary-foreground: 0 0% 100%;
  
  /* Secondary - Cool Gray */
  --secondary: 220 13% 95%;
  --secondary-foreground: 220 14% 18%;
  
  /* Muted */
  --muted: 220 13% 95%;
  --muted-foreground: 220 9% 46%;
  
  /* Accent */
  --accent: 220 13% 95%;
  --accent-foreground: 220 14% 18%;
  
  /* Destructive */
  --destructive: 0 84% 60%;
  --destructive-foreground: 0 0% 100%;
  
  /* Borders & Inputs */
  --border: 220 13% 91%;
  --input: 220 13% 91%;
  --ring: 221 83% 53%;
  
  /* Radius */
  --radius: 0.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.03);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.06), 0 1px 2px -1px rgb(0 0 0 / 0.04);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.06), 0 2px 4px -2px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.06), 0 4px 6px -4px rgb(0 0 0 / 0.04);
}

/* Dark Mode - Professional Dark */
.dark {
  --background: 220 17% 10%;
  --foreground: 210 17% 95%;
  --card: 220 17% 12%;
  --card-foreground: 210 17% 95%;
  --popover: 220 17% 12%;
  --popover-foreground: 210 17% 95%;
  
  --primary: 217 91% 60%;
  --primary-foreground: 220 17% 10%;
  
  --secondary: 217 33% 17%;
  --secondary-foreground: 210 17% 95%;
  
  --muted: 217 33% 17%;
  --muted-foreground: 215 20% 65%;
  
  --accent: 217 33% 17%;
  --accent-foreground: 210 17% 95%;
  
  --destructive: 0 63% 31%;
  --destructive-foreground: 210 17% 95%;
  
  --border: 217 33% 17%;
  --input: 217 33% 17%;
  --ring: 224 76% 48%;
}

/* Base Styles */
* {
  border-color: hsl(var(--border));
}

body {
  font-family: "Geist", "IBM Plex Sans", system-ui, sans-serif;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Selection */
::selection {
  background: hsl(var(--primary) / 0.2);
  color: hsl(var(--foreground));
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
  background: hsl(var(--muted));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: hsl(var(--muted-foreground) / 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--muted-foreground) / 0.5);
}

/* Animation Utilities */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(8px);
  }
  to { 
    opacity: 1; 
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from { 
    opacity: 0; 
    transform: translateY(-8px);
  }
  to { 
    opacity: 1; 
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from { 
    opacity: 0; 
    transform: scale(0.95);
  }
  to { 
    opacity: 1; 
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-down {
  animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-scale-in {
  animation: scaleIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Staggered Animation Delays */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }

/* Transition Utilities */
.transition-base {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.transition-smooth {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.transition-bounce {
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Hover Effects */
.hover-lift {
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hover-scale {
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* Button Active Effect */
.btn-press:active {
  transform: scale(0.97);
}

/* Glass Effect */
.glass {
  background: hsl(var(--background) / 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Typography Scale */
.text-display {
  font-size: 3rem;
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-weight: 700;
}

.text-heading-1 {
  font-size: 2.25rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.text-heading-2 {
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: -0.015em;
  font-weight: 600;
}

.text-heading-3 {
  font-size: 1.25rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
  font-weight: 600;
}

.text-body {
  font-size: 1rem;
  line-height: 1.6;
}

.text-body-small {
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-caption {
  font-size: 0.75rem;
  line-height: 1.4;
  letter-spacing: 0.01em;
}