/* ==========================================================================
   Data Observatory Theme - System Fonts Only
   ========================================================================== */

/* Font stacks */
:root {
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Monaco, Consolas, monospace;
}

/* --------------------------------------------------------------------------
   Dark Mode (Default) - Deep space aesthetic
   -------------------------------------------------------------------------- */
:root {
  /* Backgrounds - deep charcoal with blue undertone */
  --color-bg-primary: #08090c;
  --color-bg-secondary: #0f1115;
  --color-bg-tertiary: #161a1f;
  --color-bg-elevated: #1c2128;

  /* Text - high contrast hierarchy */
  --color-text-primary: #f0f2f5;
  --color-text-secondary: #a8b1bd;
  --color-text-tertiary: #6b7687;
  --color-text-muted: #4a5568;
  --color-text-disabled: #3a424f;

  /* Primary accent - electric cyan */
  --color-accent-primary: #00d4ff;
  --color-accent-primary-hover: #00b8e6;
  --color-accent-primary-muted: rgba(0, 212, 255, 0.15);
  --color-accent-primary-glow: rgba(0, 212, 255, 0.4);

  /* Pareto - warm amber glow */
  --color-pareto-primary: #f59e0b;
  --color-pareto-bright: #fbbf24;
  --color-pareto-bg: rgba(245, 158, 11, 0.12);
  --color-pareto-glow: rgba(251, 191, 36, 0.5);

  /* Status */
  --color-error: #f87171;
  --color-success: #4ade80;

  /* Borders */
  --color-border-primary: #2d333b;
  --color-border-secondary: #1c2128;
  --color-border-glow: rgba(0, 212, 255, 0.3);

  /* Chart */
  --color-grid: #1e242c;
  --color-grid-accent: #2d3748;

  /* Label stroke for chart text readability */
  --color-label-stroke: #08090c;

}

/* --------------------------------------------------------------------------
   Light Mode - Clean, minimal with cyan accents
   -------------------------------------------------------------------------- */
[data-theme="light"] {
  --color-bg-primary: #fafbfc;
  --color-bg-secondary: #f0f2f5;
  --color-bg-tertiary: #e4e8ed;
  --color-bg-elevated: #ffffff;

  --color-text-primary: #0f1419;
  --color-text-secondary: #4a5568;
  --color-text-tertiary: #6b7687;
  --color-text-muted: #8b95a5;
  --color-text-disabled: #b0b8c4;

  --color-accent-primary: #0891b2;
  --color-accent-primary-hover: #0e7490;
  --color-accent-primary-muted: rgba(8, 145, 178, 0.1);
  --color-accent-primary-glow: rgba(8, 145, 178, 0.2);

  --color-pareto-primary: #d97706;
  --color-pareto-bright: #f59e0b;
  --color-pareto-bg: rgba(217, 119, 6, 0.1);
  --color-pareto-glow: rgba(245, 158, 11, 0.3);

  --color-error: #dc2626;
  --color-success: #16a34a;

  --color-border-primary: #d1d5db;
  --color-border-secondary: #e5e7eb;
  --color-border-glow: rgba(8, 145, 178, 0.3);

  --color-grid: #e5e7eb;
  --color-grid-accent: #d1d5db;

  --color-label-stroke: #ffffff;

}

/* System preference dark mode (when no manual override) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg-primary: #08090c;
    --color-bg-secondary: #0f1115;
    --color-bg-tertiary: #161a1f;
    --color-bg-elevated: #1c2128;

    --color-text-primary: #f0f2f5;
    --color-text-secondary: #a8b1bd;
    --color-text-tertiary: #6b7687;
    --color-text-muted: #4a5568;
    --color-text-disabled: #3a424f;

    --color-accent-primary: #00d4ff;
    --color-accent-primary-hover: #00b8e6;
    --color-accent-primary-muted: rgba(0, 212, 255, 0.15);
    --color-accent-primary-glow: rgba(0, 212, 255, 0.4);

    --color-pareto-primary: #f59e0b;
    --color-pareto-bright: #fbbf24;
    --color-pareto-bg: rgba(245, 158, 11, 0.12);
    --color-pareto-glow: rgba(251, 191, 36, 0.5);

    --color-error: #f87171;
    --color-success: #4ade80;

    --color-border-primary: #2d333b;
    --color-border-secondary: #1c2128;
    --color-border-glow: rgba(0, 212, 255, 0.3);

    --color-grid: #1e242c;
    --color-grid-accent: #2d3748;

    --color-label-stroke: #08090c;

  }
}

/* System preference light mode (when no manual override) */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg-primary: #fafbfc;
    --color-bg-secondary: #f0f2f5;
    --color-bg-tertiary: #e4e8ed;
    --color-bg-elevated: #ffffff;

    --color-text-primary: #0f1419;
    --color-text-secondary: #4a5568;
    --color-text-tertiary: #6b7687;
    --color-text-muted: #8b95a5;
    --color-text-disabled: #b0b8c4;

    --color-accent-primary: #0891b2;
    --color-accent-primary-hover: #0e7490;
    --color-accent-primary-muted: rgba(8, 145, 178, 0.1);
    --color-accent-primary-glow: rgba(8, 145, 178, 0.2);

    --color-pareto-primary: #d97706;
    --color-pareto-bright: #f59e0b;
    --color-pareto-bg: rgba(217, 119, 6, 0.1);
    --color-pareto-glow: rgba(245, 158, 11, 0.3);

    --color-error: #dc2626;
    --color-success: #16a34a;

    --color-border-primary: #d1d5db;
    --color-border-secondary: #e5e7eb;
    --color-border-glow: rgba(8, 145, 178, 0.3);

    --color-grid: #e5e7eb;
    --color-grid-accent: #d1d5db;

    --color-label-stroke: #ffffff;

  }
}

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

html {
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  min-height: 100vh;
  line-height: 1.5;
}


#root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

/* Monospace for numbers/data */
.mono {
  font-family: var(--font-mono);
  font-feature-settings: 'tnum';
}

/* Selection styling */
::selection {
  background: var(--color-accent-primary-muted);
  color: var(--color-text-primary);
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* Smooth scrolling */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* --------------------------------------------------------------------------
   Keyframe Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 8px var(--color-accent-primary-glow);
  }
  50% {
    box-shadow: 0 0 16px var(--color-accent-primary-glow);
  }
}

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