Introduction-to-Python/_dark.scss at main · beyondsimulations/Introduction-to-Python · GitHub

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/*-- scss:defaults --*/

/*  ─────────────────────────────────────────────────────────────────────────
    DARK MODE: the dark layer of every lecture site.
    Copied next to styles.scss as _dark.scss by scripts/sync-core-scss.py.
    Edit Lecture-Foundations/brand/_dark.scss, not the copy.

    Only a site's `theme: dark:` list names it (wire-dark-mode.py), so it
    reaches the dark bundle alone. Quarto emits scss:defaults in reverse theme
    order (brand, styles.scss, this file, default): the core's variables and
    Paper & Ink's $pi-* exist here already, and a plain assignment beats the
    brand's light values and every !default. Verified against a real render
    on 2026-10-26 (docs/paper-and-ink-sites-design.md).
    ───────────────────────────────────────────────────────────────────────── */

// Page: Paper & Ink Dark's ground, text between its code and its prose
$body-bg: $pi-dark-ground;
$body-color: $pi-dark-text;
$headings-color: $pi-dark-heading;
$body-emphasis-color: $pi-dark-heading;
$text-muted: $pi-dark-muted;
$border-color: $pi-dark-border;
$body-secondary-bg: $pi-dark-code-surface;
$body-tertiary-bg: $pi-dark-code-surface;
$link-color: $lec-highlight-on-dark;
$primary: $lec-question-on-dark;
// Search hits (<mark>): a dark fill, not a pale yellow box; body text 7.6:1 on it
$mark-bg: mix($lec-task-on-dark, $pi-dark-ground, 25%);

// Code: Zed's dark active line; the left bar marks a block as code
$code-block-bg: $pi-dark-code-surface;
$code-bg: $pi-dark-code-surface;
$lec-code-inline: $lec-code-inline-on-dark;
$code-block-border-left: $pi-dark-code-bar;
$pre-bg: $pi-dark-code-surface;
$pre-color: $pi-dark-text;   // plain blocks and cell output; the brand sets its light foreground

// Text classes take the core's on-dark pairs
$lec-task: $lec-task-on-dark;
$lec-highlight: $lec-highlight-on-dark;
$lec-question: $lec-question-on-dark;

// ANSI output in Paper & Ink Dark's terminal colours
$lec-ansi: (
    red: ($pi-dark-ansi-red, $pi-dark-ansi-bright-red),
    green: ($pi-dark-ansi-green, $pi-dark-ansi-bright-green),
    yellow: ($pi-dark-ansi-yellow, $pi-dark-ansi-bright-yellow),
    blue: ($pi-dark-ansi-blue, $pi-dark-ansi-bright-blue),
    magenta: ($pi-dark-ansi-magenta, $pi-dark-ansi-bright-magenta),
    cyan: ($pi-dark-ansi-cyan, $pi-dark-ansi-bright-cyan),
);
$lec-ansi-grey: $pi-dark-ansi-bright-black;
$lec-ansi-on-colour: $pi-dark-ground;
$lec-line-number: $pi-dark-line-number;

// `.flow` headings in light stops, each 10:1 or more on the ground
$lec-flow-gradient: linear-gradient(
    to right,
    #F2EADE 0%,     // Paper & Ink prose   15.5:1
    #A7C7C6 28%,    // twoLight            10.2:1
    #97CDCC 42%,    // Paper & Ink teal    10.5:1
    #F6B265 54%,    // oneDark, the glint  10.1:1
    #A7C7C6 68%,
    #F2EADE 100%    // == 0%, for a seamless wrap
);