@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500&family=Major+Mono+Display&family=Noto+Sans+JP:wght@300;400;500&family=VT323&display=swap');

@layer theme, tailwind-base, tailwind-utilities;

@import "tailwindcss/theme.css" layer(theme);
@import "tailwindcss/preflight.css" layer(tailwind-base);
@import "tailwindcss/utilities.css" layer(tailwind-utilities);

@layer theme {
  :root {
    /* Font variables */
    --font-terminal: 'JetBrains Mono', monospace;
    --font-terminal-retro: 'VT323', monospace;
    --font-terminal-nier: 'Major Mono Display', monospace;
    --font-noto-jp: 'Noto Sans JP', sans-serif;

    /* Authentic NieR Automata UI colors from screenshot */
    --color-nier-bg: #dcd8c0;         /* Main parchment background */
    --color-nier-dark: #5a5a50;       /* Dark UI elements */
    --color-nier-mid: #adaba0;        /* Medium gray UI elements */
    --color-nier-text-dark: #292925;  /* Dark text */
    --color-nier-text-light: #dcd8c0; /* Light text */
    --color-nier-border: #a39e8c;     /* Border color */
    --color-nier-grid: #bfbcad;       /* Grid lines */
    --color-nier-accent: #292925;     /* Dark accent */
    --color-nier-highlight: #5a5a50;  /* Highlight for selection */

    /* Checkered background colors */
    --color-nier-checkered-bg: #d1cdb7;       /* Slightly darker than main bg */
    --color-nier-checkered-grid: #ccc8b1;     /* Grid lines for checkered pattern */
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Inverted colors for dark mode */
    --color-nier-bg: #292925;         /* Inverted from text-dark */
    --color-nier-dark: #adaba0;       /* Inverted from mid */
    --color-nier-mid: #5a5a50;        /* Inverted from dark */
    --color-nier-text-dark: #dcd8c0;  /* Inverted from bg */
    --color-nier-text-light: #292925; /* Inverted from text-dark */
    --color-nier-border: #5a5a50;     /* Darkened border */
    --color-nier-grid: #3f3e39;       /* Darkened grid */
    --color-nier-accent: #dcd8c0;     /* Inverted from accent */
    --color-nier-highlight: #adaba0;  /* Inverted from highlight */

    /* Inverted checkered background colors */
    --color-nier-checkered-bg: #121210;       /* Dark background for checkered pattern */
    --color-nier-checkered-grid: #323232;     /* Grid lines for dark checkered pattern */
  }
}

/* Manual dark mode class for toggle functionality */
.dark {
  /* Same inverted colors as media query */
  --color-nier-bg: #292925;         /* Inverted from text-dark */
  --color-nier-dark: #adaba0;       /* Inverted from mid */
  --color-nier-mid: #5a5a50;        /* Inverted from dark */
  --color-nier-text-dark: #dcd8c0;  /* Inverted from bg */
  --color-nier-text-light: #292925; /* Inverted from text-dark */
  --color-nier-border: #5a5a50;     /* Darkened border */
  --color-nier-grid: #3f3e39;       /* Darkened grid */
  --color-nier-accent: #dcd8c0;     /* Inverted from accent */
  --color-nier-highlight: #adaba0;  /* Inverted from highlight */

  /* Inverted checkered background colors */
  --color-nier-checkered-bg: #121210;       /* Dark background for checkered pattern */
  --color-nier-checkered-grid: #323232;     /* Grid lines for dark checkered pattern */
}

/* Light mode class to override system preference */
.light {
  /* Original colors */
  --color-nier-bg: #dcd8c0;         /* Main parchment background */
  --color-nier-dark: #5a5a50;       /* Dark UI elements */
  --color-nier-mid: #adaba0;        /* Medium gray UI elements */
  --color-nier-text-dark: #292925;  /* Dark text */
  --color-nier-text-light: #dcd8c0; /* Light text */
  --color-nier-border: #a39e8c;     /* Border color */
  --color-nier-grid: #bfbcad;       /* Grid lines */
  --color-nier-accent: #292925;     /* Dark accent */
  --color-nier-highlight: #5a5a50;  /* Highlight for selection */

  /* Checkered background colors */
  --color-nier-checkered-bg: #d1cdb7;       /* Slightly darker than main bg */
  --color-nier-checkered-grid: #ccc8b1;     /* Grid lines for checkered pattern */
}


@layer tailwind-utilities {
  /* Font utilities */
  .font-terminal {
    font-family: var(--font-terminal);
  }

  .font-terminal-retro {
    font-family: var(--font-terminal-retro);
  }

  .font-terminal-nier {
    font-family: var(--font-terminal-nier);
  }

  .font-noto-jp {
    font-family: var(--font-noto-jp);
    letter-spacing: -0.02em; /* Slight adjustment to mimic NieR style */
  }

  /* Background utilities */
  .bg-nier-bg {
    background-color: var(--color-nier-bg);
  }

  .bg-nier-dark {
    background-color: var(--color-nier-dark);
  }

  .bg-nier-mid {
    background-color: var(--color-nier-mid);
  }

  /* Text utilities */
  .text-nier-dark {
    color: var(--color-nier-text-dark);
  }

  .text-nier-light {
    color: var(--color-nier-text-light);
  }

  /* Border utilities */
  .border-nier-border {
    border-color: var(--color-nier-border);
  }

  .border-nier-accent {
    border-color: var(--color-nier-accent);
  }

  /* Checkered background using theme variables */
  .checkered-background {
    background-color: var(--color-nier-checkered-bg);
    background-size: 0.3rem 0.3rem;
    background-image: linear-gradient(to right, var(--color-nier-checkered-grid) 1px, rgba(0, 0, 0, 0) 1px),
    linear-gradient(to bottom, var(--color-nier-checkered-grid) 1px, rgba(0, 0, 0, 0) 1px);
    color: var(--color-nier-text-dark);
    transition: background-color 0.3s ease, background-image 0.3s ease, color 0.3s ease;
  }

  /* Additional utility for grid-based layouts */
  .nier-grid {
    display: grid;
    background-color: var(--color-nier-bg);
    background-size: 2rem 2rem;
    background-image: linear-gradient(to right, var(--color-nier-grid) 1px, rgba(0, 0, 0, 0) 1px),
    linear-gradient(to bottom, var(--color-nier-grid) 1px, rgba(0, 0, 0, 0) 1px);
    border: 1px solid var(--color-nier-border);
    transition: all 0.3s ease;
  }
}