/*  Base
 * ------ */
// * 1. Different CJK fonts have different line heights,
// *    assign a unified value for consistency.
// * 2. Force WebKit to render texts subpixel-antialiasedly.
// *
{$HAN-ROOT}
  // 1
  line-height: $HAN-LINE-HEIGHT
  // 2
  -webkit-font-smoothing: subpixel-antialiased

/*  Grouping content
 * ------------------ */

/*
 * Paragraphs, lists, figures and blockquotes
 * (段落、清單、圖表、區塊引用)
 */

// * Position with `em`-unit (Hanzi), in pursuit of alignments.
// *
ol,
ul
  padding-left: $HAN-INDENT
figure,
blockquote
  margin-left: $HAN-INDENT
  margin-right: $HAN-INDENT

/*
 * Contact information
 * (聯絡資訊)
 */
address
  font-style: inherit

/*
 * Preformatted text
 * (格式預處理文字)
 */

// * Improve the readability
// *
pre
  white-space: pre
  word-wrap: normal

/*  Text-level semantics & edits
 * ------------------------------ */

/*
 * Hyperlinks
 * (超連結)
 */

// * Remove the underlines on hyperlinks for presentational
// * purpose.
// *
a
  text-decoration: inherit

/*
 * Emphases
 * (強調)
 */

// * 1. Pure CSS fallback.
// * 2. Remove fallback on browsers that support `text-emphasis`,
// *    so far, that's only WebKit.
// *
em
  &:lang(zh),
  &:lang(ja)
    han-text-emphasis-internal()
    // typography
    font-style: inherit
    // 1
    border-bottom: 2px dotted
    padding-bottom: 0.05em
    // 2
    border-bottom-width: -webkit-calc(0px )
    padding-bottom: -webkit-calc(0px )
em:lang(ja)
  han-text-emphasis-internal($HAN-TEXT-EMPHASIS-POSI-JA, $HAN-TEXT-EMPHASIS-MARK-JA)

/*
 * Importance, definitions and Keywords
 * (重點、術語、關鍵字)
 */

// * Improvement for multiple weight fonts.
// * See: https://github.com/necolas/normalize.css/pull/342
// *
strong,
dfn:lang(zh),
dfn:lang(ja),
b
  font-weight: inherit
strong,
dfn:lang(zh),
dfn:lang(ja),
b
  font-weight: bolder
dfn
  &:lang(zh),
  &:lang(ja)
    font-style: inherit

/*
 * Cites and quotes
 * (來源、引用)
 */
cite
  &:lang(zh),
  &:lang(ja)
    font-style: inherit
q
  quotes: "\201c" "\201d" "\2018" "\2019" "\201c" "\201d" "\2018" "\2019" "\201c" "\201d" "\2018" "\2019"
  &:lang(zh)
    quotes: "\300c" "\300d" "\300e" "\300f" "\300c" "\300d" "\300e" "\300f" "\300c" "\300d" "\300e" "\300f"
  &:lang(zh-CN),
&:lang(en)
    quotes: "\201c" "\201d" "\2018" "\2019" "\201c" "\201d" "\2018" "\2019" "\201c" "\201d" "\2018" "\2019"
  &:lang(en-GB)
    quotes: "\2018" "\2019" "\201c" "\201d" "\2018" "\2019" "\201c" "\201d" "\2018" "\2019" "\201c" "\201d"
  &:before
    content: open-quote
  &:after
    content: close-quote
  &:lang(ja):before,
  &:lang(ja):after
    content: none

/*
 * Code, user input, computer output and preformatted text
 * (代碼、輸入鍵、計算機輸出示例、格式預處理文字)
 */

// * Correct odd `em`-unit font size rendering in all browsers
// * (still iffy for Chinese in WebKit).
// *
code,
kbd,
samp,
pre
  font-family: monospace, monospace, sans-serif

/*
 * Alternative voices and variables
 * (變音文字、變數)
 */
i,
var
  &:lang(zh),
  &:lang(ja)
    font-family: cursive, serif
    font-style: inherit

/*
 * Annotations, inaccurate text, insertion and deletion
 * (註記、訛訊、增訂、刪訂)
 */

// * Semantic presentation for two adjacent underlined
// * text runs.
// *
$han-adjacent-deco-line
  margin-left: 0.125em

u,
ins
  & + u,
  & + ins
    @extend $han-adjacent-deco-line
s,
del
  & + s,
  & + del
    @extend $han-adjacent-deco-line
u,
ins
  // box-model
  padding-bottom: 0.05em
  // typography
  border-bottom: 1px solid
  text-decoration: none

/*
 * Ruby annotations
 * (行間注)
 */

// * 1. Attach parentheses for readability purposes.
// *
ruby
  rtc rt
    // box-model
    display: inline
    // typography
    font-size: inherit
  &.zhuyin,
  &.mps
    // box-model
    display: ruby
    // typography
    -webkit-ruby-position: inter-character
    ruby-position:         inter-character

    > rt
      // box-model
      han-scale( $HAN-ZHUYIN-SIZE/.5, 'left center' )
      // typography
      font-size: .5em
    > rt:empty
      display: none