/* ========================================
   🎨 Deep Roots Dashboard - Enhanced Professional Theme
   Modern, polished design system
   ======================================== */

/* ============================================
   CSS CUSTOM PROPERTIES - Design Tokens
   ============================================ */
:root {
  /* Brand Colors - Professional Palette */
  --brand-primary: #2E7D32;        /* Deep forest green */
  --brand-primary-dark: #1B5E20;
  --brand-primary-light: #4CAF50;
  --brand-secondary: #558B2F;      /* Sage green */
  --brand-accent: #FFA726;         /* Warm orange */
  --brand-accent-light: #FFB74D;

  /* Semantic Colors */
  --success: #66BB6A;
  --success-light: #E8F5E9;
  --warning: #FFA726;
  --warning-light: #FFF3E0;
  --error: #EF5350;
  --error-light: #FFEBEE;
  --info: #42A5F5;
  --info-light: #E3F2FD;

  /* Neutral Colors - Enhanced Contrast */
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #EEEEEE;
  --gray-300: #E0E0E0;
  --gray-400: #BDBDBD;
  --gray-500: #9E9E9E;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;

  /* Surface Colors */
  --surface-primary: #FFFFFF;
  --surface-secondary: var(--gray-50);
  --surface-tertiary: var(--gray-100);
  --surface-elevated: #FFFFFF;
  --surface-hover: var(--gray-100);
  --surface-overlay: rgba(0, 0, 0, 0.6);

  /* Text Colors - WCAG AAA Compliant */
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-tertiary: var(--gray-500);
  --text-disabled: var(--gray-400);
  --text-inverse: #FFFFFF;

  /* Border & Dividers */
  --border-color: var(--gray-200);
  --border-color-hover: var(--gray-300);
  --divider-color: var(--gray-200);

  /* Shadows - Layered Depth System */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 20px 40px rgba(0, 0, 0, 0.2);

  /* Glows & Highlights */
  --glow-primary: 0 0 20px rgba(76, 175, 80, 0.3);
  --glow-accent: 0 0 20px rgba(255, 167, 38, 0.3);

  /* Spacing Scale - 8px base */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */

  /* Typography Scale */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;

  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Border Radius */
  --radius-xs: 0.25rem;   /* 4px */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal-backdrop: 1300;
  --z-modal: 1400;
  --z-popover: 1500;
  --z-tooltip: 1600;

  /* Layout */
  --sidebar-width: 280px;
  --sidebar-collapsed: 72px;
  --header-height: 64px;
  --max-width-content: 1280px;
}

/* ============================================
   DARK MODE THEME
   ============================================ */
:root[data-theme="dark"] {
  /* Dark Mode Colors */
  --surface-primary: #1A1A1A;
  --surface-secondary: #242424;
  --surface-elevated: #2D2D2D;
  --surface-overlay: rgba(0, 0, 0, 0.8);

  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-tertiary: #808080;
  --text-disabled: #606060;

  --border-color: #333333;
  --border-color-hover: #404040;
  --divider-color: #2D2D2D;

  /* Adjusted shadows for dark mode */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.7);
}

/* ============================================
   GLOBAL RESETS & BASE STYLES
   ============================================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background: var(--surface-secondary);
  overflow-x: hidden;
}

/* ============================================
   ENHANCED UTILITY CLASSES
   ============================================ */

/* Flexbox Utilities */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid Utilities */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Spacing Utilities */
.p-2 { padding: var(--space-2); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.m-0 { margin: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mt-4 { margin-top: var(--space-4); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

/* Color Utilities */
.text-primary { color: var(--brand-primary); }
.text-secondary { color: var(--text-secondary); }
.bg-primary { background: var(--brand-primary); }
.bg-surface { background: var(--surface-primary); }

/* Border & Radius */
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }
.border { border: 1px solid var(--border-color); }

/* Shadow Utilities */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Visibility */
.hidden { display: none !important; }
.visible { display: block; }
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* Transitions */
.transition { transition: all var(--transition-base); }
.transition-fast { transition: all var(--transition-fast); }
.transition-slow { transition: all var(--transition-slow); }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* ============================================
   ANIMATIONS & KEYFRAMES
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes slideInLeft {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

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

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

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

.animate-fadeIn { animation: fadeIn var(--transition-base); }
.animate-fadeInUp { animation: fadeInUp var(--transition-base); }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */
@media (max-width: 640px) {
  :root {
    --sidebar-width: 100%;
    --font-size-base: 0.9375rem; /* 15px */
  }
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1024px) {
  :root {
    --sidebar-width: 320px;
  }
}