/*
 * GN Markdown readability layer for Gitea 1.27
 * Served from: custom/public/assets/css/gn-markdown.css  (URL: /assets/css/gn-markdown.css)
 * Included by: custom/templates/custom/header.tmpl
 *
 * Everything is built on Gitea's own --color-* variables, so light, dark and
 * auto themes all work. Retune the look through the --gn-* tokens below.
 * The site palette ("B 쑥") lives in gn-theme.css, which sets --color-* and
 * --gn-link per theme; the tokens here only describe shape and rhythm.
 */

/* ---------------------------------------------------------------- tokens */
:root {
  --gn-accent: var(--color-primary);            /* the only accent colour (sage) */
  --gn-link: var(--color-primary);              /* gn-theme.css sets a slightly deeper link tone */
  --gn-radius: 6px;                             /* matches --border-radius of the site theme */
  --gn-shadow: 0 2px 10px rgb(42 40 35 / 0.08);

  --gn-doc-font-size: 16px;                     /* file view / README / wiki */
  --gn-doc-line-height: 1.75;
  --gn-markup-line-height: 1.65;                /* comments, previews */
  --gn-doc-padding: 2em 2.5em 2.5em;
  --gn-measure: 52em;                           /* max prose line length */
  --gn-block-gap: 1.05em;                       /* paragraphs, lists */
  --gn-section-gap: 2.25em;                     /* space above H2 (in H2 ems) */

  --gn-table-font-size: 0.9375em;
  --gn-table-line-height: 1.6;
  --gn-table-pad-y: 0.6em;
  --gn-table-pad-x: 0.9em;
  --gn-table-border: var(--color-secondary);
  --gn-table-rule: var(--color-secondary-alpha-60);
  --gn-table-header-bg: var(--color-box-header);
  --gn-table-stripe: var(--color-markup-table-row);
  --gn-table-hover: var(--color-hover);

  --gn-fab-offset: 20px;
}

@supports (color: color-mix(in srgb, red, blue)) {
  :root {
    /* the sage accent is already muted, so it is used as is (no softening mix) */
    /* make the header row distinguishable in dark themes as well */
    --gn-table-header-bg: color-mix(in srgb, var(--color-text) 4%, var(--color-box-header));
  }
}

/* ------------------------------------------------------------------ font */
@font-face {
  font-family: "Pretendard Variable";
  font-weight: 45 920;
  font-style: normal;
  font-display: swap;
  src: url("../fonts/PretendardVariable.woff2?v=1.3.9") format("woff2-variations"),
       url("../fonts/PretendardVariable.woff2?v=1.3.9") format("woff2");
}

/* Gitea composes --fonts-regular from --fonts-override (set per :lang()),
   so overriding it here switches the whole UI to Pretendard. */
:root,
:root * {
  --fonts-override: "Pretendard Variable", Pretendard, var(--fonts-proportional) !important;
}

/* ------------------------------------------------------------ typography */
.markup {
  line-height: var(--gn-markup-line-height) !important;
  word-break: keep-all;            /* keep Korean words intact when wrapping */
  overflow-wrap: break-word;
}

.markup pre,
.markup .code-block-container {
  word-break: normal;
}

.file-view.markup.markdown,
.wiki-content-main.markup {
  font-size: var(--gn-doc-font-size);
  line-height: var(--gn-doc-line-height) !important;
}

.file-view.markup.markdown {
  padding: var(--gn-doc-padding);
}

.file-view.markup.markdown :is(p, ul, ol, dl, details):not(:last-child),
.wiki-content-main.markup :is(p, ul, ol, dl, details):not(:last-child) {
  margin-bottom: var(--gn-block-gap);
}

.markup blockquote > :last-child {
  margin-bottom: 0;
}

.file-view.markup.markdown > :is(p, ul, ol, dl, blockquote, details),
.wiki-content-main.markup > :is(p, ul, ol, dl, blockquote, details) {
  max-width: var(--gn-measure);
}

.markup li + li {
  margin-top: 0.3em;
}

.markup li::marker {
  color: var(--color-text-light-2);
}

.markup code,
.markup tt {
  font-size: 0.875em;
}

.markup a:not(.ui):not(.anchor) {
  color: var(--gn-link);
}

/* -------------------------------------------------------------- headings */
.markup :is(h1, h2, h3, h4, h5, h6) {
  scroll-margin-top: 16px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.markup h1 {
  font-size: 1.875em;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: 1em;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--color-secondary);
}

.markup h2 {
  position: relative;
  font-size: 1.45em;
  font-weight: 700;
  line-height: 1.4;
  margin-top: var(--gn-section-gap);
  margin-bottom: 0.85em;
  padding-top: 1.05em;
  padding-bottom: 0;
  border-top: 1px solid var(--color-secondary);
  border-bottom: 0;
}

/* short accent segment on the section rule */
.markup h2::before {
  content: "";
  position: absolute;
  top: -1px;
  inset-inline-start: 0;
  width: 2.25rem;
  height: 2px;
  background: var(--gn-accent);
}

.markup > h2:first-child {
  padding-top: 0;
  border-top: 0;
}

.markup > h2:first-child::before {
  display: none;
}

.markup h3 {
  font-size: 1.2em;
  font-weight: 650;
  line-height: 1.45;
  margin-top: 2.1em;
  margin-bottom: 0.7em;
}

.markup h2 + h3 {
  margin-top: 1.35em;
}

.markup h4 {
  font-size: 1.05em;
  font-weight: 650;
  margin-top: 1.7em;
  margin-bottom: 0.6em;
}

.markup hr {
  height: 1px;
  margin: 2.5em 0;
  background-color: var(--color-secondary);
}

/* the docs put "---" before every H2; the H2 already draws its own rule */
.markup hr:has(+ h2) {
  display: none;
}

/* ---------------------------------------------------------------- tables */
.markup:not(.csv) table {
  display: block;
  width: max-content;
  max-width: 100%;
  overflow: auto;
  margin: 1.25em 0 1.75em;
  border: 1px solid var(--gn-table-border);
  border-radius: var(--gn-radius);
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--gn-table-font-size);
  line-height: var(--gn-table-line-height);
  font-variant-numeric: tabular-nums;
  -webkit-overflow-scrolling: touch;
}

.markup:not(.csv) table :is(th, td) {
  padding: var(--gn-table-pad-y) var(--gn-table-pad-x) !important;
  border: 0 !important;
  border-bottom: 1px solid var(--gn-table-rule) !important;
  border-inline-end: 1px solid var(--gn-table-rule) !important;
  vertical-align: top;
}

.markup:not(.csv) table tr > :last-child {
  border-inline-end: 0 !important;
}

.markup:not(.csv) table tbody tr:last-child > * {
  border-bottom: 0 !important;
}

.markup:not(.csv) table th {
  background-color: var(--gn-table-header-bg);
  font-weight: 650;
  vertical-align: bottom;
  border-bottom-color: var(--gn-table-border) !important;
}

/* default header alignment follows the column; explicit markdown alignment wins */
.markup:not(.csv) table th:not([align]):not([style*="text-align"]) {
  text-align: start;
}

.markup:not(.csv) table tr {
  background-color: transparent;
  border-top: 0;
}

.markup:not(.csv) table tbody tr:nth-child(2n) {
  background-color: var(--gn-table-stripe);
}

/* layered on top of the stripe so hover is visible on every row */
.markup:not(.csv) table tbody tr:hover > * {
  background-image: linear-gradient(var(--gn-table-hover), var(--gn-table-hover));
}

.markup:not(.csv) table code {
  white-space: nowrap;
}

/* scroll hint for wide tables (classes toggled by gn-markdown.js) */
.markup table.gn-more-right {
  -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 32px), rgb(0 0 0 / 0.25));
  mask-image: linear-gradient(to right, #000 calc(100% - 32px), rgb(0 0 0 / 0.25));
}

.markup table.gn-more-left {
  -webkit-mask-image: linear-gradient(to left, #000 calc(100% - 32px), rgb(0 0 0 / 0.25));
  mask-image: linear-gradient(to left, #000 calc(100% - 32px), rgb(0 0 0 / 0.25));
}

.markup table.gn-more-left.gn-more-right {
  -webkit-mask-image: linear-gradient(to right, rgb(0 0 0 / 0.25), #000 32px, #000 calc(100% - 32px), rgb(0 0 0 / 0.25));
  mask-image: linear-gradient(to right, rgb(0 0 0 / 0.25), #000 32px, #000 calc(100% - 32px), rgb(0 0 0 / 0.25));
}

/* ------------------------------------------------- document tools (TOC) */
.gn-doc-tools {
  position: fixed;
  right: max(var(--gn-fab-offset), env(safe-area-inset-right));
  bottom: max(var(--gn-fab-offset), env(safe-area-inset-bottom));
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  font-family: var(--fonts-regular);
  font-size: 14px;
  line-height: 1.45;
  pointer-events: none;
}

.gn-doc-tools > * {
  pointer-events: auto;
}

.gn-doc-tools[hidden],
.gn-doc-tools [hidden] {
  display: none !important;
}

.gn-doc-tools svg {
  flex-shrink: 0;
}

.gn-fabs {
  display: flex;
  gap: 8px;
}

.gn-fab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--color-secondary);
  border-radius: 999px;
  background: var(--color-box-body);
  color: var(--color-text);
  font: inherit;
  font-weight: 500;
  box-shadow: var(--gn-shadow);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.gn-fab:hover {
  background: var(--color-hover-opaque, var(--color-box-header));
}

.gn-fab-toc[aria-expanded="true"] {
  border-color: var(--gn-accent);
}

.gn-doc-tools :is(button, a):focus-visible {
  outline: 2px solid var(--gn-accent);
  outline-offset: 2px;
}

.gn-toc-panel {
  display: flex;
  flex-direction: column;
  width: min(320px, calc(100vw - 2 * var(--gn-fab-offset)));
  max-height: min(70vh, 640px);
  border: 1px solid var(--color-secondary);
  border-radius: var(--gn-radius);
  background: var(--color-box-body);
  color: var(--color-text);
  box-shadow: var(--gn-shadow);
  overflow: hidden;
}

.gn-toc-head {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 10px 10px 16px;
  border-bottom: 1px solid var(--color-secondary);
}

.gn-toc-heading {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.gn-toc-title {
  font-weight: 650;
}

.gn-toc-doc {
  color: var(--color-text-light-2);
  font-size: 12.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gn-toc-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--color-text-light-2);
  cursor: pointer;
}

.gn-toc-close:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

.gn-toc-list {
  position: relative;
  margin: 0;
  padding: 6px 0 8px;
  list-style: none;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.gn-toc-link {
  display: block;
  padding: 5px 16px 5px 14px;
  border-inline-start: 2px solid transparent;
  color: var(--color-text-light);
  text-decoration: none;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.gn-toc-link:hover {
  background: var(--color-hover);
  color: var(--color-text);
  text-decoration: none;
}

.gn-toc-l3 .gn-toc-link {
  padding-inline-start: 28px;
  font-size: 13px;
  color: var(--color-text-light-2);
}

.gn-toc-l2 + .gn-toc-l2 {
  margin-top: 2px;
}

.gn-toc-link.is-parent {
  color: var(--color-text);
}

.gn-toc-link.is-active {
  border-inline-start-color: var(--gn-accent);
  background: var(--color-hover);
  color: var(--color-text);
  font-weight: 600;
}

/* ---------------------------------------------------------------- mobile */
@media (max-width: 767.98px) {
  :root {
    --gn-doc-font-size: 15.5px;
    --gn-doc-padding: 1.25em 1.25em 1.75em;
    --gn-section-gap: 2.5em;
    --gn-table-font-size: 0.9em;
    --gn-table-pad-y: 0.5em;
    --gn-table-pad-x: 0.7em;
    --gn-fab-offset: 12px;
  }

  .markup h1 { font-size: 1.6em; }
  .markup h2 { font-size: 1.3em; }
  .markup h3 { font-size: 1.125em; }

  /* column classes are set by gn-markdown.js from the longest cell text */
  .markup:not(.csv) table .gn-col-mid {
    min-width: 6em;
  }

  .markup:not(.csv) table .gn-col-long {
    min-width: 10em;
  }

  .gn-fab {
    height: 40px;
  }

  .gn-fab-top {
    width: 40px;
    padding: 0;
    justify-content: center;
  }

  .gn-fab-top .gn-fab-label {
    display: none;
  }

  .gn-toc-panel {
    max-height: 62vh;
  }

  .gn-toc-link {
    padding-top: 7px;
    padding-bottom: 7px;
  }
}

@media print {
  .gn-doc-tools {
    display: none !important;
  }

  .markup table.gn-more-left,
  .markup table.gn-more-right {
    -webkit-mask-image: none;
    mask-image: none;
  }
}