refactor(theme): use scss and split index.css into modules

9 files changed, 794 insertions, 0 deletions

diff --git a/assets/css/components/_animation.scss b/assets/css/components/_animation.scss
new file mode 100644
index 00000000..a47bfafc
--- /dev/null
+++ b/assets/css/components/_animation.scss
@@ -0,0 +1,9 @@
+/* transition swup */
+
+html.is-changing .transition-fade {
+  transition: opacity 0.25s;
+  opacity: 1;
+}
+html.is-animating .transition-fade {
+  opacity: 0;
+}
diff --git a/assets/css/components/_content.scss b/assets/css/components/_content.scss
new file mode 100644
index 00000000..6c5815cb
--- /dev/null
+++ b/assets/css/components/_content.scss
@@ -0,0 +1,89 @@
+/* toc */
+
+#toc-container {
+    position: absolute;
+    bottom: 0;
+    right: calc(50% + var(--page-width) / 2);
+    left: auto;
+    height: 100%;
+    top: 12rem;
+}
+
+@media screen and (max-width: 1200px) {
+    #toc-container {
+        display: none
+    }
+}
+
+#toc {
+    /* position */
+    position: sticky;
+    top: 3rem;
+    /* styling */
+    font-size: 1rem;
+    padding: 0 2rem;
+}
+
+@media screen and (max-width: 1700px) {
+    #toc {
+        font-size: 0.9rem;
+    }
+}
+
+@media screen and (max-width: 1500px) {
+    #toc {
+        font-size: 0.825rem;
+    }
+}
+
+#toc ul, #toc ol {
+    margin-block-start: 0;
+    margin-block-end: 0;
+    padding-inline-start: 1rem;
+}
+
+#toc li {
+    list-style: none;
+}
+
+#toc li > a {
+    color: var(--secondary-text-color);
+    text-decoration: none;
+    transition: color .3s;
+    display: inline-flex;
+    align-items: center;
+    gap: .5rem;
+}
+
+#toc li > a::before {
+    content: '';
+    display: inline-block;
+    width: 1rem;
+    height: .3rem;
+    background-color: var(--block-background-color);
+    border-radius: .2rem;
+    transition: background .3s;
+}
+
+#toc li a:hover,
+#toc li.is-active-li > a {
+    color: var(--text-color);
+}
+
+#toc li.is-active-li > a::before {
+    background-color: var(--secondary-text-color);
+}
+
+#toc .toc-list {
+	overflow: hidden;
+	position: relative;
+}
+
+#toc .toc-list .toc-list {
+    max-height: 25rem;
+	overflow-y: auto
+}
+
+#toc .toc-list.is-collapsed {
+	max-height: 0
+}
diff --git a/assets/css/components/_footer.scss b/assets/css/components/_footer.scss
new file mode 100644
index 00000000..44811c6c
--- /dev/null
+++ b/assets/css/components/_footer.scss
@@ -0,0 +1,44 @@
+/* site footer */
+
+#footer {
+    width: var(--page-width);
+    margin: 2rem auto;
+    font-family: var(--mono-font-family);
+}
+
+@media screen and (min-width: 768px) {
+    #footer {
+        display: flex;
+        justify-content: space-between;
+    }
+}
+
+#footer-links {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-end;
+}
+
+#footer-links ul.footer-navigation {
+    list-style: none;
+    display: flex;
+    gap: 0.2rem;
+    justify-content: flex-end;
+    padding-inline-start: 0;
+}
+
+#footer-links ul.footer-navigation li {
+    display: inline-flex;
+    align-items: center;
+}
+
+#footer-links ul.footer-navigation li img {
+    height: 1rem;
+    width: auto
+}
+
+#footer-copyright .word-count {
+    font-family: var(--serif-font-family);
+    font-size: .9rem;
+    color: var(--secondary-text-color)
+}
diff --git a/assets/css/components/_header.scss b/assets/css/components/_header.scss
new file mode 100644
index 00000000..9e3d4454
--- /dev/null
+++ b/assets/css/components/_header.scss
@@ -0,0 +1,68 @@
+/* header */
+
+.header-title {
+  font-size: 2rem;
+  font-weight: 900;
+  margin-top: 32px;
+  text-align: center;
+  letter-spacing: .15rem;
+}
+.header-title a {
+  text-decoration: none;
+}
+
+.header-subtitle {
+  color: var(--secondary-text-color);
+}
+
+.header-line {
+  width: 100%;
+  border-width: 1px;
+  border-color: var(--border-color);
+  border-style: solid none none none;
+}
+
+/* navigation */
+
+#navigation-bar {
+    --gap: .75rem;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    gap: var(--gap);
+    padding-left: calc(1rem + var(--gap))
+}
+
+.navigation {
+  margin: 1rem 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  width: fit-content;
+  border-radius: 1rem;
+  overflow: hidden;
+}
+
+.navigation-item a {
+  display: inline-block;
+  color: var(--background-color);
+  padding: 0.25rem 0.5rem;
+  background-color: var(--text-color);
+}
+
+.navigation-item:first-child a {
+  padding-left: 0.75rem
+}
+
+.navigation-item:last-child a {
+  padding-right: 0.75rem
+}
+
+.navigation-item.active a {
+  color: var(--text-color);
+  background-color: var(--block-background-color);
+}
+
+.navigation-item a:hover {
+  text-decoration: none;
+}
diff --git a/assets/css/components/_markdown.scss b/assets/css/components/_markdown.scss
new file mode 100644
index 00000000..9ed1c967
--- /dev/null
+++ b/assets/css/components/_markdown.scss
@@ -0,0 +1,90 @@
+// Variables (can be moved to a separate variables file if needed)
+$font-size: var(--content-font-size);
+$link-color: var(--link-color);
+$secondary-text-color: var(--secondary-text-color);
+$border-color: var(--border-color);
+$block-background-color: var(--block-background-color);
+
+// Mixin for block styles
+@mixin block-style($margin, $padding, $color: null, $border-left: null) {
+  margin: $margin;
+  padding: $padding;
+  @if $color {
+    color: $color;
+  }
+  @if $border-left {
+    border-left: $border-left;
+  }
+}
+
+// Main styles
+.markdown-body {
+  font-size: $font-size;
+  max-width: 100%;
+
+  // Nested styles for child elements
+  a {
+    text-decoration: underline;
+    color: $link-color;
+  }
+
+  blockquote {
+    @include block-style(0, 0 1em, $secondary-text-color, 0.25em solid $border-color);
+  }
+
+  pre {
+    padding: 16px;
+    overflow: auto;
+    border-radius: 10px;
+  }
+
+  code {
+    padding: 0.2em 0.4em;
+    font-size: 85%;
+    background-color: $block-background-color;
+    border-radius: 6px;
+  }
+
+  pre > code {
+    padding: 0;
+    font-size: 100%;
+    background-color: inherit;
+    border: 0;
+  }
+
+  p {
+    hyphens: auto;
+    text-justify: ideographic;
+    margin-bottom: 1em;
+  }
+
+  strong {
+    color: var(--strong-text-color)
+  }
+
+  em {
+    color: var(--em-text-color)
+  }
+
+  hr {
+    margin: 2.5rem auto;
+    border: 0.1rem dashed var(--border-color);
+  }
+
+  img {
+    max-width: 100%;
+    display: block;
+    margin-right: auto;
+    margin-top: 6px;
+  }
+
+  figure {
+    margin: 0;
+  }
+
+  figure figcaption h4 {
+    font-size: 0.9rem;
+    color: var(--secondary-text-color);
+    font-weight: 400;
+  }
+}
diff --git a/assets/css/components/_pages.scss b/assets/css/components/_pages.scss
new file mode 100644
index 00000000..61a88aae
--- /dev/null
+++ b/assets/css/components/_pages.scss
@@ -0,0 +1,216 @@
+/* posts list */
+
+#posts-list {
+  min-height: 600px;
+}
+
+#posts-list ul {
+  list-style-type: none;
+  padding-inline-start: 1em;
+}
+
+.featured-post a.posts-title-link {
+  font-weight: 800;
+  display: block;
+}
+
+.posts-line {
+  font-size: 1.2rem;
+  margin: 12px 0;
+}
+
+#posts-list > section:nth-child(1) > ul:nth-child(3) > li.first-post > div > div.posts-title.col-xs-9.col-sm-10 > div {
+  align-items: flex-start;
+}
+
+.posts-categories {
+  font-size: 0.8rem;
+  text-align: center;
+}
+
+.posts-category {
+  padding: 3px 0;
+  border: var(--border-color) 2px solid;
+  border-radius: 5px;
+  background-color: var(--background-color);
+}
+
+.posts-date {
+  font-family: var(--mono-font-family);
+  color: var(--secondary-text-color)
+}
+
+.posts-year-section {
+  --section-height: 9rem;
+  min-height: var(--section-height);
+  position: relative;
+  margin: 2rem 0;
+}
+
+.posts-year-title {
+  font-size: 2rem;
+  font-weight: 900;
+  position: absolute;
+  right: 0;
+  color: var(--text-color);
+  opacity: 0.25;
+  font-size: calc(var(--section-height) / 2);
+  margin: 0;
+  line-height: 1;
+  z-index: -1;
+}
+
+#posts-list hr {
+  border: 1px solid var(--border-color);
+  margin: 3rem 0;
+}
+
+.posts-subtitle {
+  color: var(--secondary-text-color)
+}
+
+/* post */
+
+.post-header {
+  margin-bottom: 2rem;
+}
+
+.post-title {
+  font-size: 2rem;
+  font-weight: 900;
+}
+
+.post-subtitle {
+  display: block;
+  color: var(--secondary-text-color);
+  font-style: italic;
+  font-size: 1.2rem;
+}
+
+.post-tags a {
+  display: inline-block;
+  color: var(--secondary-text-color);
+  font-size: var(--content-font-size);
+}
+
+.post-date {
+  color: var(--secondary-text-color)
+}
+
+.post-author {
+  float: right;
+  font-weight: 600;
+}
+
+.page-content {
+  min-height: 60%;
+}
+
+.post-content {
+  margin-bottom: 50px;
+  line-height: 2
+}
+
+/* termlist */
+
+.termlist-title {
+  font-size: 2rem;
+  text-align: center;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+
+  background-color: var(--block-background-color);
+  padding: 0.5rem 1rem;
+  border-radius: 1rem;
+  width: fit-content;
+  margin: 2rem auto;
+  margin-bottom: 0;
+}
+
+.termlist-title::before,
+.termlist-title::after {
+  margin: 0.5rem 0;
+  color: var(--secondary-text-color);
+  font-size: 0.75em
+}
+
+.termlist-title::before {
+  content: "《";
+}
+
+.termlist-title::after {
+  content: "》";
+}
+
+.termlist-subscribe {
+    text-align: center;
+    font-size: .9rem
+}
+
+.termlist-subscribe a {
+    color: var(--secondary-text-color)
+}
+
+.termlist-subscribe a:hover {
+    text-decoration: none
+}
+
+/* category page */
+
+section.taxonomy {
+    margin: 2rem 0;
+}
+
+.taxonomy-tags {
+    display: flex;
+    flex-wrap: wrap;
+    gap: .5rem
+}
+
+.taxonomy-tags-item {
+    display: inline-flex;
+    align-items: center;
+    gap: .3rem;
+
+    padding: .25rem .75rem;
+    background-color: var(--block-background-color);
+    transition: color, background .3s;
+    border-radius: .3rem;
+}
+
+.taxonomy-tags-item:hover {
+    text-decoration: none;
+    background-color: var(--text-color);
+    color: var(--block-background-color);
+}
+
+.taxonomy-tags-item .tag-count {
+    font-size: .8rem;
+    color: var(--secondary-text-color);
+}
+
+@media screen and (max-width: 600px) {
+  .posts-line {
+    font-size: 16px;
+  }
+
+  .markdown-body {
+    font-size: 16px;
+  }
+  .post-title {
+    font-size: 2rem;
+  }
+  .post-content p {
+    letter-spacing: 0.05em;
+  }
+  .post-content .post-gallery img {
+    width: 100%;
+  }
+}
+
+@media screen and (max-width: 48em) {
+  .posts-category {
+    display: none;
+  }
+}
diff --git a/assets/css/components/_reset.scss b/assets/css/components/_reset.scss
new file mode 100644
index 00000000..8d29ea32
--- /dev/null
+++ b/assets/css/components/_reset.scss
@@ -0,0 +1,32 @@
+body {
+  font-family: var(--serif-font-family);
+  -webkit-font-smoothing: antialiased;
+  margin: 0 20px;
+  color: var(--text-color);
+  position: relative;
+  /* background */
+  background-image: linear-gradient(to bottom, var(--block-background-color), transparent);
+  background-size: 100% 5rem;
+  background-position: top left;
+  background-repeat: no-repeat;
+  background-color: var(--background-color);
+}
+
+article {
+  max-width: var(--page-width);
+  margin: 0 auto
+}
+
+a {
+  color: var(--text-color);
+  text-decoration: none;
+  text-underline-offset: 0.25rem;
+}
+
+a:hover {
+  text-decoration: underline;
+}
+
+ul {
+  list-style-type: square;
+}
diff --git a/assets/css/components/_shortcodes.scss b/assets/css/components/_shortcodes.scss
new file mode 100644
index 00000000..48074923
--- /dev/null
+++ b/assets/css/components/_shortcodes.scss
@@ -0,0 +1,202 @@
+/* callouts */
+
+.callout {
+  background-color: var(--block-background-color);
+  border-radius: .25rem;
+  padding: 1rem 1.25rem;
+  line-height: 1.75;
+
+  display: flex;
+  gap: .75rem;
+
+  margin: 0.5rem 0;
+}
+
+.callout .callout-content p {
+  margin: 0;
+}
+
+/* quote shortcode */
+
+.quote-card {
+  --card-bg: rgba(255,255,255,0.25);
+  --card-bg-lighter: rgba(255,255,255,0.1);
+  --card-noise: rgba(255,255,255,0.04);
+
+  font-size: 1.5rem;
+  font-style: italic;
+  text-align: center;
+  margin: 5rem 3rem;
+  padding: 1rem;
+  border: 1px solid var(--border-color);
+  border-radius: 1rem;
+  box-shadow: 0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;
+  transform: rotate(3deg);
+  background-color: rgba(255,255,255,0.35);
+
+  background: linear-gradient(var(--card-bg-lighter), var(--card-bg-lighter)),
+    repeating-radial-gradient(var(--card-bg) 0 0.0001%, var(--card-noise) 0 0.0002%) 50% 0 / 2500px 2500px,
+    repeating-conic-gradient(var(--card-bg) 0 0.0001%, var(--card-noise) 0 0.0002%) 60% 60% / 2500px 2500px;
+  background-blend-mode: normal, difference;
+}
+
+@media screen and (max-width: 768px) {
+  .quote-card {
+    font-size: 1.2rem;
+    margin: 3rem 1rem;
+  }
+}
+
+/* blog links */
+
+div.blog-links {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 1rem;
+}
+
+a.blog-link {
+  position: relative;
+  background-color: var(--block-background-color);
+  text-decoration: none;
+  color: var(--text-color);
+  padding: 1rem 2rem;
+  padding-right: 4rem;
+  border-radius: 1rem;
+  width: calc(50% - 2rem);
+  box-sizing: border-box;
+  overflow: hidden
+}
+
+@media screen and (max-width: 768px) {
+  a.blog-link {
+    font-size: 1.2rem;
+    padding: 0.5rem 1rem;
+    padding-right: 2rem;
+    width: 100%;
+  }
+}
+
+a.blog-link h4,
+a.blog-link p {
+  margin: 0;
+  font-size: 1.2rem;
+}
+
+a.blog-link p {
+  line-height: 1.5;
+}
+
+a.blog-link .blog-link-content {
+  z-index: 10;
+}
+
+a.blog-link-image {
+  z-index: 0;
+}
+
+a.blog-link img {
+  --size: 5rem;
+  display: block;
+  position: absolute;
+  right: -1rem;
+  bottom: -1rem;
+  width: var(--size);
+  height: var(--size);
+  border-radius: 100%;
+  z-index: 0;
+}
+
+/* book showcase shortcode */
+
+.book-showcase {
+    display: flex;
+    gap: 2rem;
+    line-height: 1.5;
+    margin: 2rem 0
+}
+
+.book-showcase .book-cover {
+    width: 25%;
+    flex-shrink: 0;
+}
+
+.book-description-header .book-title {
+    margin: 0
+}
+
+.book-description-header p {
+    font-size: 1rem;
+    margin: 0.1rem
+}
+
+/* inline-image shortcode */
+
+.inline-image {
+  display: flex;
+  overflow-x: auto;
+  scroll-behavior: smooth;
+  gap: 1rem;
+  white-space: nowrap;
+}
+
+.inline-image > figure {
+  display: inline-block;
+  margin: 0;
+  flex-shrink: 0;
+}
+
+.inline-image > figure img {
+  height: 20rem;
+  object-fit: cover;
+  display: block;
+}
+
+
+/* gallery */
+
+.gallery-img {
+  text-align: center;
+}
+
+.gallery-img span {
+  text-align: center;
+}
+
+.gallery-img-desc {
+  font-size: 0.8em;
+  font-weight: 800;
+}
+
+/* sidenote shortcode */
+
+@media screen and (max-width: 1199px) {
+    .sidenote {
+        border: 1px solid var(--block-background-color);
+        padding: .75rem 1rem;
+        border-radius: 0.5rem;
+        line-height: 1.5;
+    }
+    .sidenote-title {
+        font-size: 1rem;
+        text-align: right;
+        font-style: italic
+    }
+}
+
+@media screen and (min-width: 1200px) {
+    .sidenote {
+        position: absolute;
+        left: calc(50% + var(--page-width) / 2);
+        margin-left: 2rem;
+        max-width: 20rem
+    }
+}
+
+.sidenote-title {
+    margin: 0.5rem 0
+}
+
+.sidenote-content {
+    font-size: 1rem
+}
diff --git a/assets/css/components/_variables.scss b/assets/css/components/_variables.scss
new file mode 100644
index 00000000..11eded55
--- /dev/null
+++ b/assets/css/components/_variables.scss
@@ -0,0 +1,44 @@
+:root {
+  /* colors */
+  --background-color: #F5F5F7;
+  --block-background-color: #E9E8ED;
+  --border-color: #d0d7de;
+  --text-color: #1D1D1F;
+  --secondary-text-color: #6E6E73;
+  --link-color: #277BD9;
+
+  --strong-text-color: #B6506A;
+  --em-text-color: #0271A4;
+
+  /* fonts */
+  --mono-font-family: "Courier New", Courier, "Menlo", "Monaco", Consolas, "Liberation Mono", "Lucida Console", monospace;
+  --serif-font-family:  "Noto Serif SC", serif;
+  --content-font-size: 20px;
+
+  /* waline */
+  --waline-font-size: 20px;
+  --waline-border-color: var(--border-color);
+  --waline-bg-color: var(--background-color);
+
+  --page-width: 700px;
+}
+
+.dark {
+  --background-color: #1D2021;
+  --block-background-color: #181A1B;
+  --border-color: rgba(255,255,255,0.2);
+  --text-color: #D2CEC9;
+  --secondary-text-color: #A1998D;
+  --link-color: #277BD9
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --background-color: #1D2021;
+    --block-background-color: #181A1B;
+    --border-color: rgba(255,255,255,0.2);
+    --text-color: #D2CEC9;
+    --secondary-text-color: #A1998D;
+    --link-color: #277BD9;
+  }
+}