@import "tailwindcss";
@import "tw-animate-css";

@plugin "tailwindcss-animate";

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

@theme inline {
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --color-card: var(--card);
  --color-card-foreground: var(--card-foreground);
  --color-popover: var(--popover);
  --color-popover-foreground: var(--popover-foreground);
  --color-primary: var(--primary);
  --color-primary-foreground: var(--primary-foreground);
  --color-secondary: var(--secondary);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-muted: var(--muted);
  --color-muted-foreground: var(--muted-foreground);
  --color-accent: var(--accent);
  --color-accent-foreground: var(--accent-foreground);
  --color-destructive: var(--destructive);
  --color-destructive-foreground: var(--destructive-foreground);
  --color-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);
  --color-chart-1: var(--chart-1);
  --color-chart-2: var(--chart-2);
  --color-chart-3: var(--chart-3);
  --color-chart-4: var(--chart-4);
  --color-chart-5: var(--chart-5);
  --font-sans: "Inter", "Arial", sans-serif;
  --font-heading: "Inter", "Arial", sans-serif;
}

:root {
  /* High Contrast Accessibility Theme */
  
  /* Background: Pure White */
  --background: oklch(1 0 0); 
  
  /* Foreground: Pure Black */
  --foreground: oklch(0 0 0);

  /* Card: White */
  --card: oklch(1 0 0);
  --card-foreground: oklch(0 0 0);

  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0 0 0);

  /* Primary: Deep Royal Blue (High Contrast) */
  --primary: oklch(0.30 0.15 260);
  --primary-foreground: oklch(1 0 0);

  /* Secondary: Deep Red (High Contrast) - Fixed from previous light value */
  --secondary: oklch(0.45 0.2 25);
  --secondary-foreground: oklch(1 0 0);

  /* Muted: Very Light Grey for backgrounds */
  --muted: oklch(0.96 0 0);
  /* Muted Foreground: Dark Grey (High Contrast) */
  --muted-foreground: oklch(0.25 0 0);

  --accent: oklch(0.96 0 0);
  --accent-foreground: oklch(0 0 0);

  --destructive: oklch(0.577 0.245 27.325);
  --destructive-foreground: oklch(0.985 0 0);

  --border: oklch(0.85 0 0);
  --input: oklch(0.85 0 0);
  --ring: oklch(0.30 0.15 260);

  --radius: 0.5rem;
  
  /* Chart colors */
  --chart-1: var(--primary);
  --chart-2: var(--secondary);
  --chart-3: oklch(0.4 0.1 260);
  --chart-4: oklch(0.5 0.1 25);
  --chart-5: oklch(0.2 0.1 260);
}

.dark {
  /* Fallback Dark Mode (High Contrast) */
  --background: oklch(0.1 0 0);
  --foreground: oklch(1 0 0);
  --card: oklch(0.15 0 0);
  --card-foreground: oklch(1 0 0);
  --popover: oklch(0.15 0 0);
  --popover-foreground: oklch(1 0 0);
  --primary: oklch(0.65 0.15 260);
  --primary-foreground: oklch(0 0 0);
  --secondary: oklch(0.70 0.18 25);
  --secondary-foreground: oklch(0 0 0);
  --muted: oklch(0.2 0 0);
  --muted-foreground: oklch(0.8 0 0);
  --accent: oklch(0.2 0 0);
  --accent-foreground: oklch(1 0 0);
  --destructive: oklch(0.6 0.2 25);
  --destructive-foreground: oklch(1 0 0);
  --border: oklch(0.3 0 0);
  --input: oklch(0.3 0 0);
  --ring: oklch(0.65 0.15 260);
}

@layer base {
  html {
    font-size: 18px; /* Mobile-first base font size */
  }
  @media (min-width: 768px) {
    html {
      font-size: 20px; /* Large base font size for desktop readability */
    }
  }
  * {
    @apply border-border outline-ring/50;
  }
  body {
    @apply bg-background text-foreground font-sans antialiased;
  }
  h1, h2, h3, h4, h5, h6 {
    @apply font-heading font-bold tracking-tight text-foreground;
  }
  p {
    @apply text-foreground/90; /* Ensure paragraphs are high contrast */
  }
}

@layer components {
  .container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (min-width: 640px) {
    .container {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container {
      padding-left: 2rem;
      padding-right: 2rem;
      max-width: 1280px;
    }
  }
}