picocss/scss/themes/default/_dark.scss

@use "sass:map";
@use "../../colors" as *;
@use "../../settings" as *;
@use "../../helpers/functions";
@use "theme-colors";

// Default: Dark theme
@mixin theme {
  #{$css-var-prefix}background-color: #{mix($slate-950, $slate-900)};

  // Text color
  #{$css-var-prefix}color: #{$zinc-200};

  // Text selection color
  #{$css-var-prefix}text-selection-color: theme-colors.get("text-selection-color", "dark");

  // Muted colors
  #{$css-var-prefix}muted-color: #{$zinc-450};
  #{$css-var-prefix}muted-border-color: #{$slate-850};

  // Primary colors
  #{$css-var-prefix}primary: theme-colors.get("primary", "dark");
  #{$css-var-prefix}primary-background: theme-colors.get("primary-background", "dark");
  #{$css-var-prefix}primary-border: var(#{$css-var-prefix}primary-background);
  #{$css-var-prefix}primary-underline: theme-colors.get("primary-underline", "dark");
  #{$css-var-prefix}primary-hover: theme-colors.get("primary-hover", "dark");
  #{$css-var-prefix}primary-hover-background: theme-colors.get("primary-hover-background", "dark");
  #{$css-var-prefix}primary-hover-border: var(#{$css-var-prefix}primary-hover-background);
  #{$css-var-prefix}primary-hover-underline: var(#{$css-var-prefix}primary-hover);
  #{$css-var-prefix}primary-focus: theme-colors.get("primary-focus", "dark");
  #{$css-var-prefix}primary-inverse: theme-colors.get("primary-inverse", "dark");

  // Secondary colors
  #{$css-var-prefix}secondary: #{$zinc-350};
  #{$css-var-prefix}secondary-background: #{$slate-600};
  #{$css-var-prefix}secondary-border: var(#{$css-var-prefix}secondary-background);
  #{$css-var-prefix}secondary-underline: #{rgba($zinc-350, 0.5)};
  #{$css-var-prefix}secondary-hover: #{$zinc-250};
  #{$css-var-prefix}secondary-hover-background: #{$slate-550};
  #{$css-var-prefix}secondary-hover-border: var(#{$css-var-prefix}secondary-hover-background);
  #{$css-var-prefix}secondary-hover-underline: var(#{$css-var-prefix}secondary-hover);
  #{$css-var-prefix}secondary-focus: #{rgba($slate-350, 0.25)};
  #{$css-var-prefix}secondary-inverse: #{$white};

  // Contrast colors
  #{$css-var-prefix}contrast: #{$slate-100};
  #{$css-var-prefix}contrast-background: #{$slate-50};
  #{$css-var-prefix}contrast-border: var(#{$css-var-prefix}contrast-background);
  #{$css-var-prefix}contrast-underline: #{rgba($slate-100, 0.5)};
  #{$css-var-prefix}contrast-hover: #{$white};
  #{$css-var-prefix}contrast-hover-background: #{$white};
  #{$css-var-prefix}contrast-hover-border: var(#{$css-var-prefix}contrast-hover-background);
  #{$css-var-prefix}contrast-hover-underline: var(#{$css-var-prefix}contrast-hover);
  #{$css-var-prefix}contrast-focus: #{rgba($slate-150, 0.25)};
  #{$css-var-prefix}contrast-inverse: #{$black};

  // Box shadow
  #{$css-var-prefix}box-shadow: functions.shadow(mix($black, $slate-950));

  // Typography
  @if map.get($modules, "content/typography") {
    // Headings colors
    #{$css-var-prefix}h1-color: #{$zinc-50};
    #{$css-var-prefix}h2-color: #{$zinc-100};
    #{$css-var-prefix}h3-color: #{$zinc-200};
    #{$css-var-prefix}h4-color: #{$zinc-250};
    #{$css-var-prefix}h5-color: #{$zinc-300};
    #{$css-var-prefix}h6-color: #{$zinc-400};

    // Highlighted text (<mark>)
    #{$css-var-prefix}mark-background-color: #{$azure-750};
    #{$css-var-prefix}mark-color: #{$white};

    // Inserted (<ins>) & Deleted (<del>)
    #{$css-var-prefix}ins-color: #{mix($jade-450, $zinc-200)};
    #{$css-var-prefix}del-color: #{mix($red-500, $zinc-200)};

    // Blockquote
    #{$css-var-prefix}blockquote-border-color: var(#{$css-var-prefix}muted-border-color);
    #{$css-var-prefix}blockquote-footer-color: var(#{$css-var-prefix}muted-color);
  }

  // Button
  @if map.get($modules, "content/button") {
    // To disable box-shadow, remove the var or set to '0 0 0 rgba(0, 0, 0, 0)'
    // Don't use, 'none, 'false, 'null', '0', etc.
    #{$css-var-prefix}button-box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    #{$css-var-prefix}button-hover-box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  }

  // Table
  @if map.get($modules, "content/table") {
    #{$css-var-prefix}table-border-color: var(#{$css-var-prefix}muted-border-color);
    #{$css-var-prefix}table-row-stripped-background-color: #{rgba($zinc-500, 0.0375)};
  }

  // Code
  @if map.get($modules, "content/code") {
    #{$css-var-prefix}code-background-color: #{mix($slate-900, $slate-850, 75%)};
    #{$css-var-prefix}code-color: #{$zinc-400};
    #{$css-var-prefix}code-kbd-background-color: var(#{$css-var-prefix}color);
    #{$css-var-prefix}code-kbd-color: var(#{$css-var-prefix}background-color);
  }

  // Form elements
  @if map.get($modules, "forms/basics") {
    #{$css-var-prefix}form-element-background-color: #{mix($slate-900, $slate-850)};
    #{$css-var-prefix}form-element-selected-background-color: #{$slate-800};
    #{$css-var-prefix}form-element-border-color: #{$slate-800};
    #{$css-var-prefix}form-element-color: #{$zinc-100};
    #{$css-var-prefix}form-element-placeholder-color: #{$zinc-400};
    #{$css-var-prefix}form-element-active-background-color: #{mix($slate-900, $slate-850, 75%)};
    #{$css-var-prefix}form-element-active-border-color: var(#{$css-var-prefix}primary-border);
    #{$css-var-prefix}form-element-focus-color: var(#{$css-var-prefix}primary-border);
    #{$css-var-prefix}form-element-disabled-opacity: 0.5;
    #{$css-var-prefix}form-element-invalid-border-color: #{mix($red-500, $slate-600)};
    #{$css-var-prefix}form-element-invalid-active-border-color: #{mix($red-500, $slate-600, 75%)};
    #{$css-var-prefix}form-element-invalid-focus-color: var(
      #{$css-var-prefix}form-element-invalid-active-border-color
    );
    #{$css-var-prefix}form-element-valid-border-color: #{mix($jade-450, $slate-600)};
    #{$css-var-prefix}form-element-valid-active-border-color: #{mix($jade-450, $slate-600, 75%)};
    #{$css-var-prefix}form-element-valid-focus-color: var(
      #{$css-var-prefix}form-element-valid-active-border-color
    );

    // Focus for buttons, radio and select
    input:is(
        [type="submit"],
        [type="button"],
        [type="reset"],
        [type="checkbox"],
        [type="radio"],
        [type="file"]
      ) {
      #{$css-var-prefix}form-element-focus-color: var(#{$css-var-prefix}primary-focus);
    }
  }

  // Switch (input[type="checkbox"][role="switch"])
  @if map.get($modules, "forms/checkbox-radio-switch") {
    #{$css-var-prefix}switch-background-color: #{$slate-750};
    #{$css-var-prefix}switch-checked-background-color: var(#{$css-var-prefix}primary-background);
    #{$css-var-prefix}switch-color: #{$white};
    #{$css-var-prefix}switch-thumb-box-shadow: theme-colors.get("switch-thumb-box-shadow", "dark");
  }

  // Range (input[type="range"])
  @if map.get($modules, "forms/input-range") {
    #{$css-var-prefix}range-border-color: #{$slate-850};
    #{$css-var-prefix}range-active-border-color: #{$slate-800};
    #{$css-var-prefix}range-thumb-border-color: var(#{$css-var-prefix}background-color);
    #{$css-var-prefix}range-thumb-color: var(#{$css-var-prefix}secondary-background);
    #{$css-var-prefix}range-thumb-active-color: var(#{$css-var-prefix}primary-background);
  }

  // Accordion (<details>)
  @if map.get($modules, "components/accordion") {
    #{$css-var-prefix}accordion-border-color: var(#{$css-var-prefix}muted-border-color);
    #{$css-var-prefix}accordion-active-summary-color: var(#{$css-var-prefix}primary-hover);
    #{$css-var-prefix}accordion-close-summary-color: var(#{$css-var-prefix}color);
    #{$css-var-prefix}accordion-open-summary-color: var(#{$css-var-prefix}muted-color);
  }

  // Card (<article>)
  @if map.get($modules, "components/card") {
    #{$css-var-prefix}card-background-color: #{$slate-900};
    #{$css-var-prefix}card-border-color: var(#{$css-var-prefix}card-background-color);
    #{$css-var-prefix}card-box-shadow: var(#{$css-var-prefix}box-shadow);
    #{$css-var-prefix}card-sectioning-background-color: #{mix($slate-900, $slate-850, 75%)};
  }

  // Dropdown (details.dropdown)
  @if map.get($modules, "components/dropdown") and $enable-classes {
    #{$css-var-prefix}dropdown-background-color: #{$slate-900};
    #{$css-var-prefix}dropdown-border-color: #{$slate-850};
    #{$css-var-prefix}dropdown-box-shadow: var(#{$css-var-prefix}box-shadow);
    #{$css-var-prefix}dropdown-color: var(#{$css-var-prefix}color);
    #{$css-var-prefix}dropdown-hover-background-color: #{$slate-850};
  }

  // Loading ([aria-busy=true])
  @if map.get($modules, "components/loading") {
    #{$css-var-prefix}loading-spinner-opacity: 0.5;
  }

  // Modal (<dialog>)
  @if map.get($modules, "components/modal") {
    #{$css-var-prefix}modal-overlay-background-color: #{rgba(mix($black, $zinc-950), 0.75)};
  }

  // Progress
  @if map.get($modules, "components/progress") {
    #{$css-var-prefix}progress-background-color: #{$slate-850};
    #{$css-var-prefix}progress-color: var(#{$css-var-prefix}primary-background);
  }

  // Tooltip ([data-tooltip])
  @if map.get($modules, "components/tooltip") {
    #{$css-var-prefix}tooltip-background-color: var(#{$css-var-prefix}contrast-background);
    #{$css-var-prefix}tooltip-color: var(#{$css-var-prefix}contrast-inverse);
  }

  // Chevron icons
  @if map.get($modules, "components/accordion") or map.get($modules, "components/dropdown") {
    // Change the icon color to black for accordion and dropdown .contrast buttons
    @if $enable-classes {
      #{$parent-selector} details {
        summary {
          &[role="button"].contrast:not(.outline) {
            &::after {
              filter: brightness(0);
            }
          }
        }
      }
    }
  }

  // Form validation icons
  @if map.get($modules, "forms/basics") {
    #{$css-var-prefix}icon-valid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='#{functions.display-rgb(mix($jade-450, $slate-600))}' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    #{$css-var-prefix}icon-invalid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='#{functions.display-rgb(mix($red-500, $slate-600))}' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'%3E%3C/circle%3E%3Cline x1='12' y1='8' x2='12' y2='12'%3E%3C/line%3E%3Cline x1='12' y1='16' x2='12.01' y2='16'%3E%3C/line%3E%3C/svg%3E");
  }

  // Loading icon (animated)
  @if map.get($modules, "components/loading") {
    // Change the icon color to black for .contrast buttons
    @if $enable-classes {
      #{$parent-selector} [aria-busy="true"]:not(input, select, textarea) {
        &.contrast:is(
            button,
            [type="submit"],
            [type="button"],
            [type="reset"],
            [role="button"]
          ):not(.outline) {
          &::before {
            filter: brightness(0);
          }
        }
      }
    }
  }

  // Document
  color-scheme: dark;
}