/* Match the docs to the banner and the app icon.
 *
 * banner.svg draws the name on #0E1621 with a darker #070C12 panel, and uses
 * Telegram blue #2AABEE for its accent bar and divider. The logo is the same
 * blue on a dark plate. These values keep the header, the logo and the page in
 * one palette.
 */
:root {
  --md-primary-fg-color:        #0E1621;  /* banner background */
  --md-primary-fg-color--light: #17212B;
  --md-primary-fg-color--dark:  #070C12;  /* banner side panel */
  --md-primary-bg-color:        #F2F6FA;  /* banner title text */
  --md-primary-bg-color--light: #8FA3B5;  /* banner tagline text */

  --md-accent-fg-color:         #2AABEE;  /* banner accent */
  --md-accent-fg-color--transparent: #2AABEE1a;
}

/* Dark scheme: the page body uses the banner background too, so the header
   and the page read as one surface. */
[data-md-color-scheme="slate"] {
  --md-default-bg-color:        #0E1621;
  --md-code-bg-color:           #17212B;
  --md-typeset-a-color:         #2AABEE;
}

/* Light scheme: #2AABEE on white is 2.6:1, too faint for body links.
   #0F7AB8 is the same hue at 4.7:1. */
[data-md-color-scheme="default"] {
  --md-typeset-a-color:         #0F7AB8;
}

/* Give the header logo a fixed size so it does not crowd the site name. */
.md-header__button.md-logo img,
.md-header__button.md-logo svg {
  height: 1.6rem;
  width: 1.6rem;
}

/* The site name, set the way banner.svg sets it: light and heavy.
 *
 * Only the first topic is styled. Material puts the site name in one
 * .md-header__topic and the page title in a second one, and swaps them on
 * scroll. Styling both would change every page title too.
 */
.md-header__topic:first-child .md-ellipsis {
  color: #F2F6FA;
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* Keep the mark and the name close, so they read as one unit. */
.md-header__button.md-logo {
  padding-right: 0.2rem;
}

.md-header__title {
  margin-left: 0.2rem;
}

/* Buttons.
 *
 * Material paints .md-button in --md-primary-fg-color, the header colour. On
 * the dark page that is also the page background, so a button would show as
 * plain text. Outline buttons take the link colour instead. */
.md-typeset .md-button {
  color: var(--md-typeset-a-color);
  border-color: var(--md-typeset-a-color);
  border-radius: 0.5rem;
}

.md-typeset .md-button:focus,
.md-typeset .md-button:hover {
  background-color: var(--md-typeset-a-color);
  border-color: var(--md-typeset-a-color);
  color: #ffffff;
}

.md-typeset .md-button--primary,
.md-typeset .md-button--primary:focus,
.md-typeset .md-button--primary:hover {
  /* White on #2AABEE is 2.6:1. #0F7AB8 -> #0F6FA8 keeps every point above
     4.5:1. */
  background: linear-gradient(90deg, #0F7AB8 0%, #0F6FA8 100%);
  border-color: transparent;
  color: #ffffff;
}

.md-typeset .md-button--primary:focus,
.md-typeset .md-button--primary:hover {
  box-shadow: 0 0.2rem 0.8rem #2AABEE59;
}

/* Grid cards: the border picks up the accent on hover, so the cards match
   the buttons and links. */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border-radius: 0.5rem;
}

.md-typeset .grid.cards > ul > li:focus-within,
.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid > .card:focus-within,
.md-typeset .grid > .card:hover {
  border-color: #2AABEE;
}

/* FAQ entries (??? question). Material draws them lime green, a colour that
   appears nowhere else here; use the accent instead. */
.md-typeset .admonition.question,
.md-typeset details.question {
  border-color: #2AABEE;
}

.md-typeset .admonition.question:focus-within,
.md-typeset details.question:focus-within {
  box-shadow: 0 0 0 0.2rem #2AABEE1a;
}

.md-typeset .question > .admonition-title::after,
.md-typeset .question > summary::after {
  color: #2AABEE;
}

.md-typeset .question > .admonition-title,
.md-typeset .question > summary {
  background-color: #2AABEE1a;
}

.md-typeset .question > .admonition-title::before,
.md-typeset .question > summary::before {
  background-color: #2AABEE;
}

/* The home page keeps an H1 for search, screen readers and the browser tab.
   The banner under it already shows the name, so the H1 is hidden visually.
   Use it as: # Telegram Archive { .ta-visually-hidden } */
.md-typeset h1.ta-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Environment variable names in tables, such as TG_ACCOUNT_1_API_HASH, must
   not wrap mid-word. Material sets word-break: break-word on code; normal
   keeps a name whole but still lets a long log line wrap at its spaces. */
.md-typeset table:not([class]) code {
  word-break: normal;
}