/* Staffroom brand for the docs site: colour scheme 3 (manila card, navy ink,
   red-pen accent) in a light and a dark reading, Fraunces for headings and
   Source Sans 3 for body text. Mirrors src/staffroom/core/theme_tokens.py. */

@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Source+Sans+3:ital,wght@0,400;0,600;0,700;1,400&display=swap");

:root {
  --md-text-font: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --staffroom-heading-font: "Fraunces", Georgia, "Times New Roman", serif;
}

/* Light: window #f4efe3, surface #fbf8f0, ink #1c2433, red pen #c8322b. */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #1c2433;
  --md-primary-fg-color--light: #2b3547;
  --md-primary-fg-color--dark: #121824;
  --md-primary-bg-color: #f4efe3;
  --md-primary-bg-color--light: #cfc6b0;

  --md-accent-fg-color: #c8322b;
  --md-accent-fg-color--transparent: rgba(200, 50, 43, 0.1);
  --md-accent-bg-color: #ffffff;
  --md-accent-bg-color--light: #f7e0dd;

  --md-default-fg-color: #1c2433;
  --md-default-fg-color--light: #6b6a62;
  --md-default-fg-color--lighter: #9b978a;
  --md-default-fg-color--lightest: #e3dccb;
  --md-default-bg-color: #fbf8f0;
  --md-default-bg-color--light: #f4efe3;
  --md-default-bg-color--lighter: #f1ecdf;
  --md-default-bg-color--lightest: #e3dccb;

  --md-code-fg-color: #1c2433;
  --md-code-bg-color: #f1ecdf;
  --md-code-hl-color: rgba(200, 50, 43, 0.12);
  --md-code-hl-string-color: #1f7a3a;
  --md-code-hl-number-color: #a3490a;
  --md-code-hl-keyword-color: #6a3fc9;
  --md-code-hl-function-color: #0b6a7a;
  --md-code-hl-comment-color: #6b6a62;

  --md-typeset-a-color: #c8322b;
  --md-typeset-table-color: #e3dccb;
  --md-typeset-kbd-color: #f1ecdf;
  --md-typeset-kbd-border-color: #cfc6b0;
  --md-admonition-fg-color: #1c2433;
  --md-admonition-bg-color: #fbf8f0;
  --md-footer-bg-color: #1c2433;
  --md-footer-bg-color--dark: #121824;
  --md-footer-fg-color: #f4efe3;
  --md-footer-fg-color--light: #cfc6b0;

  /* Home page (sr-*): on-accent text, the window colour behind cards, rules. */
  --sr-on-accent: #ffffff;
  --sr-window: #f4efe3;
  --sr-rule: #e3dccb;
  --sr-rule-strong: #cfc6b0;
  --sr-paper-shadow: 0 1px 2px rgba(28, 36, 51, 0.16), 0 10px 28px rgba(28, 36, 51, 0.16);
}

/* Dark: window #1b1a17, surface #25231f, text #efe9dc, accent #ff6b5e. */
[data-md-color-scheme="slate"] {
  --md-hue: 40;

  --md-primary-fg-color: #25231f;
  --md-primary-fg-color--light: #35322c;
  --md-primary-fg-color--dark: #171613;
  --md-primary-bg-color: #efe9dc;
  --md-primary-bg-color--light: #a39e92;

  --md-accent-fg-color: #ff6b5e;
  --md-accent-fg-color--transparent: rgba(255, 107, 94, 0.12);
  --md-accent-bg-color: #1b1a17;
  --md-accent-bg-color--light: #3d2522;

  --md-default-fg-color: #efe9dc;
  --md-default-fg-color--light: #a39e92;
  --md-default-fg-color--lighter: #6d685c;
  --md-default-fg-color--lightest: #35322c;
  --md-default-bg-color: #1b1a17;
  --md-default-bg-color--light: #211f1b;
  --md-default-bg-color--lighter: #25231f;
  --md-default-bg-color--lightest: #35322c;

  --md-code-fg-color: #efe9dc;
  --md-code-bg-color: #171613;
  --md-code-hl-color: rgba(255, 107, 94, 0.18);
  --md-code-hl-string-color: #9fd6a4;
  --md-code-hl-number-color: #f2b86b;
  --md-code-hl-keyword-color: #cfa6ff;
  --md-code-hl-function-color: #7fd0e0;
  --md-code-hl-comment-color: #a39e92;

  --md-typeset-a-color: #ff6b5e;
  --md-typeset-table-color: #35322c;
  --md-typeset-kbd-color: #25231f;
  --md-typeset-kbd-border-color: #46423a;
  --md-admonition-fg-color: #efe9dc;
  --md-admonition-bg-color: #211f1b;
  --md-footer-bg-color: #171613;
  --md-footer-bg-color--dark: #121110;
  --md-footer-fg-color: #efe9dc;
  --md-footer-fg-color--light: #a39e92;

  --sr-on-accent: #1b1a17;
  --sr-window: #211f1b;
  --sr-rule: #35322c;
  --sr-rule-strong: #46423a;
  --sr-paper-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.45);
}

/* Type: Fraunces carries the headings and the site title; Source Sans the rest. */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-header__topic,
.md-nav__title {
  font-family: var(--staffroom-heading-font);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.md-typeset h1 {
  font-weight: 700;
  color: var(--md-default-fg-color);
}

.md-typeset {
  font-size: 0.85rem;
  line-height: 1.55;
}

.md-header__button.md-logo img {
  border-radius: 22%;
}

/* ---- Home page (docs/index.md) ------------------------------------------
   Hero (headline, install, a fan of real pages), the privacy strip and the
   "What comes out" gallery. Colours come only from the tokens above. */

.sr-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22rem;
  gap: 2rem;
  align-items: start;
  margin-top: 0.4rem;
}

.md-typeset .sr-headline {
  font-size: 2.6rem;
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0.2rem 0 0.9rem;
}

.md-typeset .sr-headline em {
  font-style: italic;
  font-weight: 600;
  color: var(--md-accent-fg-color);
}

.md-typeset .sr-headline .headerlink {
  display: none;
}

.md-typeset .sr-lede {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--md-default-fg-color--light);
  max-width: 32rem;
  margin: 0 0 1.1rem;
}

.md-typeset .sr-cta p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
}

.md-typeset .sr-cta .md-button {
  margin: 0;
  padding: 0.5em 1.4em;
  border-radius: 0.4rem;
  font-weight: 700;
  color: var(--md-default-fg-color);
  border-color: var(--sr-rule-strong);
  background: var(--md-default-bg-color--light);
}

.md-typeset .sr-cta .md-button--primary,
.md-typeset .sr-cta .md-button--primary:hover {
  color: var(--sr-on-accent);
  background: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
}

.md-typeset .sr-cta .md-button:not(.md-button--primary):hover {
  color: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
}

.sr-install {
  margin-top: 1.1rem;
  border: 1px solid var(--sr-rule);
  border-radius: 0.5rem;
  background: var(--md-code-bg-color);
  padding: 0.5rem 0 0;
}

.md-typeset .sr-install__label {
  margin: 0 0.8rem;
  font-size: 0.62rem;
  color: var(--md-default-fg-color--light);
}

.md-typeset .sr-install pre {
  margin: 0;
}

.md-typeset .sr-install pre > code {
  font-size: 0.6rem;
  line-height: 1.8;
  padding: 0.3rem 0.8rem 0.5rem;
}

.md-typeset .sr-install__note {
  margin: 0.5rem 0 0;
  font-size: 0.66rem;
  color: var(--md-default-fg-color--light);
}

/* The fan: three real first pages, slightly turned, front page on top. */
.sr-fan {
  position: relative;
  height: 26rem;
}

.md-typeset .sr-fan p {
  margin: 0;
}

.md-typeset .sr-page {
  position: absolute;
  width: 15rem;
  background: #ffffff; /* the paper itself, not a theme surface */
  border-radius: 2px;
  box-shadow: var(--sr-paper-shadow);
}

.sr-page--back {
  left: 6.6rem;
  top: 1.6rem;
  transform: rotate(5deg);
}

.sr-page--middle {
  left: 3.4rem;
  top: 0.4rem;
  transform: rotate(-1.5deg);
}

.sr-page--front {
  left: 0;
  top: 2.6rem;
  transform: rotate(-6deg);
}

/* Privacy strip: stored / never stored / check it yourself. */
.sr-privacy {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 1.2rem 0 1.6rem;
  border: 1px solid var(--sr-rule);
  border-radius: 0.6rem;
  background: var(--sr-window);
}

.sr-privacy > div {
  padding: 0.8rem 1rem 0.2rem;
  border-right: 1px solid var(--sr-rule);
}

.sr-privacy > div:last-child {
  border-right: none;
}

.md-typeset .sr-privacy p {
  font-size: 0.7rem;
  line-height: 1.5;
  color: var(--md-default-fg-color--light);
  margin: 0 0 0.6rem;
}

.md-typeset .sr-privacy .sr-privacy__title {
  font-family: var(--staffroom-heading-font);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--md-default-fg-color);
  margin-bottom: 0.3rem;
}

.sr-privacy__title span {
  color: var(--md-accent-fg-color);
}

/* "What comes out": one real output per tool. */
.md-typeset #what-comes-out {
  font-size: 1.4rem;
  margin-top: 1.4rem;
}

.sr-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.4rem;
}

.sr-card {
  display: flex;
  flex-direction: column;
  padding: 0.6rem;
  border: 1px solid var(--sr-rule);
  border-radius: 0.6rem;
  background: var(--sr-window);
}

.md-typeset .sr-card p {
  margin: 0;
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--md-default-fg-color--light);
}

.md-typeset .sr-thumb {
  display: block;
  width: 100%;
  height: 9.5rem;
  object-fit: cover;
  object-position: top;
  margin-bottom: 0.6rem;
  border: 1px solid var(--sr-rule);
  border-radius: 0.35rem;
  background: #ffffff; /* the page or chart is white paper in both schemes */
}

.md-typeset .sr-thumb--chart {
  object-fit: contain;
  object-position: center;
  padding: 0.3rem;
}

.md-typeset .sr-thumb--code {
  overflow: hidden;
  background: var(--md-code-bg-color);
}

.md-typeset .sr-thumb--code pre {
  margin: 0;
}

.md-typeset .sr-thumb--code pre > code {
  font-size: 0.48rem;
  line-height: 1.5;
  padding: 0.4rem 0.5rem;
  overflow: hidden;
}

.md-typeset .sr-thumb--code .md-code__nav,
.md-typeset .sr-thumb--code .md-clipboard {
  display: none;
}

.md-typeset .sr-card .sr-card__name {
  display: block;
  margin-bottom: 0.15rem;
  font-family: var(--staffroom-heading-font);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--md-default-fg-color);
}

.md-typeset .sr-card .sr-card__name:hover {
  color: var(--md-accent-fg-color);
}

/* Narrow windows: text first, the fan smaller underneath, strip stacked. */
@media screen and (max-width: 60em) {
  .sr-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.5rem;
  }

  .md-typeset .sr-headline {
    font-size: 2rem;
  }

  .sr-fan {
    width: 100%;
    height: 20rem;
    max-width: 22rem;
    overflow-x: clip; /* a turned page must not widen a phone's page */
    margin: 0 auto;
  }

  .md-typeset .sr-page {
    width: 10.5rem;
    max-width: none;
  }

  .sr-page--back {
    left: 5.5rem;
  }

  .sr-page--middle {
    left: 2.8rem;
  }

  .sr-page--front {
    left: 0.5rem;
  }

  .sr-privacy {
    grid-template-columns: minmax(0, 1fr);
  }

  .sr-privacy > div {
    border-right: none;
    border-bottom: 1px solid var(--sr-rule);
  }

  .sr-privacy > div:last-child {
    border-bottom: none;
  }
}

/* Changelog page (scripts/release.py site): each version leads with its
   sentences for teachers; the contributors' list folds under them. */
.md-typeset .release-summary {
  margin: 0.6em 0 1em;
  padding: 0.1em 0 0.1em 0.9em;
  border-left: 3px solid var(--md-accent-fg-color);
  font-size: 0.9rem;
  line-height: 1.55;
}

.md-typeset .release-summary p {
  margin: 0;
}

.md-typeset details:has(> summary) {
  border-color: var(--sr-rule-strong);
  box-shadow: none;
}

.md-typeset details > summary {
  background-color: var(--md-default-bg-color--light);
  color: var(--md-default-fg-color--light);
  font-weight: 600;
}

.md-typeset details > summary::before {
  background-color: var(--md-default-fg-color--lighter);
}