/* global.css */
@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light;
  color: #213547;
  background-color: #ffffff;

  /* Semantic color tokens */
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-light: #93c5fd;
  --color-primary-dark: #1d4ed8;
  --color-error: #ef4444;
  --color-error-hover: #dc2626;
  --color-success: #10b981;
  --color-success-hover: #059669;
  --color-warning: #f59e0b;
  --color-warning-hover: #d97706;
  --color-info: #3b82f6;
  --color-text-primary: #1f2937;
  --color-text-secondary: #4b5563;
  --color-text-muted: #6b7280;
  --color-surface: #ffffff;
  --color-surface-secondary: #f9fafb;
  --color-border: #e5e7eb;

  /* Scrollbar tokens (renamed to avoid confusion with theme colors) */
  --scrollbar-track: gray;
  --scrollbar-thumb: rgb(63, 63, 141);

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

/* Global focus ring for keyboard navigation (WCAG 2.4.7) */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Respect user motion preferences */
@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;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    color: #e5e7eb;
    background-color: #111827;
    --color-text-primary: #f9fafb;
    --color-text-secondary: #d1d5db;
    --color-text-muted: #9ca3af;
    --color-surface: #1f2937;
    --color-surface-secondary: #111827;
    --color-border: #374151;
  }
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Chrome, Edge, and Safari */
*::-webkit-scrollbar {
  width: 7px;
}

*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
  border-radius: 5px;
}

*::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border-radius: 5px;
  border: 3px solid var(--scrollbar-track);
}

svg {
  pointer-events: none;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

/* Skip-to-content link for keyboard users */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 0.375rem 0;
}
.skip-to-content:focus {
  top: 0;
}

.no-scroll {
  overflow: hidden;
}

.quadrant-grid {
  display: grid;
  grid-template-columns: 150px repeat(150px);
  grid-template-rows: auto repeat(20px);
}