:root {
  color-scheme: light;
  --font-body: "Noto Serif KR", Georgia, "Times New Roman", "AppleMyungjo",
    "Nanum Myeongjo", "Noto Serif CJK KR", Batang, serif;
  --font-code: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono",
    monospace;
  --color-bg: #fff;
  --color-text: #000;
  --color-muted: #555;
  --color-subtle: #777;
  --color-border: #bbb;
  --color-soft-bg: #f7f7f7;
  --content-width: 700px;
  --page-margin: 1.5rem;
  --list-indent: 1.25em;
  --space-1: 0.15rem;
  --space-2: 0.25rem;
  --space-3: 0.35rem;
  --space-4: 0.45rem;
  --space-5: 0.65rem;
  --space-6: 0.75rem;
  --space-7: 0.9rem;
  --space-8: 1rem;
  --space-9: 1.25rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: var(--page-margin);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.45;
}

.site {
  max-width: var(--content-width);
}

a {
  color: inherit;
  text-decoration: underline;
}

a:visited {
  color: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.25;
}

.intro {
  margin-bottom: var(--space-9);
}

.site-title {
  margin: 0 0 var(--space-2);
}

.site-title a {
  display: inline-flex;
  line-height: 0;
}

.site-title img {
  display: block;
  width: 72px;
  height: 72px;
}

.site-links {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-3);
  font-size: 0.95rem;
}

.site-links a {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

.entry {
  margin: var(--space-8) 0;
}

.entry h1,
.entry h2,
.entry h3,
.entry h4,
.entry h5,
.entry h6 {
  margin: var(--space-8) 0 var(--space-3);
  font-weight: bold;
}

.entry h1 {
  font-size: 1.35rem;
}

.entry h2 {
  font-size: 1.15rem;
}

.entry h3 {
  font-size: 1rem;
}

.entry .entry-title {
  display: inline-block;
  margin: 0 0 var(--space-3);
  border-bottom: 1px solid var(--color-subtle);
  padding-bottom: 0.05rem;
  font-size: 1.1rem;
}

.entry p {
  margin: 0;
}

.entry ul,
.entry ol {
  margin: var(--space-4) 0;
  padding-inline-start: var(--list-indent);
}

.entry li {
  margin: var(--space-1) 0;
}

.entry li > ul,
.entry li > ol {
  margin: var(--space-1) 0;
}

.post-header {
  margin-bottom: var(--space-4);
}

.entry .post-title {
  margin: 0 0 var(--space-1);
  font-size: 1.45rem;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-6);
  color: var(--color-muted);
  font-size: 0.95rem;
}

.post-meta-item {
  white-space: nowrap;
}

.post-meta-label {
  color: var(--color-subtle);
  font-size: 0.9rem;
}

.post-date {
  margin-left: var(--space-3);
  color: #444;
  font-size: 0.95rem;
}

blockquote {
  margin: var(--space-6) 0;
  border-left: 2px solid var(--color-subtle);
  padding-left: var(--space-7);
  color: #444;
}

blockquote p {
  margin: var(--space-2) 0;
}

code {
  font-family: var(--font-code);
  font-size: 0.92em;
}

p code,
li code {
  background: #f3f3f3;
  padding: 0.08rem 0.22rem;
}

pre {
  overflow-x: auto;
  margin: var(--space-6) 0;
  background: #f6f6f6;
  padding: var(--space-6);
}

pre code {
  font-size: 0.9rem;
}

table {
  width: 100%;
  margin: var(--space-6) 0;
  border-collapse: collapse;
}

th,
td {
  border: 1px solid var(--color-border);
  padding: 0.3rem var(--space-4);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f5f5f5;
}

mark {
  background: #fff2a8;
  padding: 0 0.08rem;
}

.entry img {
  max-width: 100%;
  height: auto;
}

.task-list {
  list-style: none;
}

.task-list-item {
  position: relative;
  list-style: none;
}

.task-list-item > input[type="checkbox"] {
  position: absolute;
  top: 0.25em;
  left: calc(-1 * var(--list-indent));
  margin: 0;
}

.callout,
.admonition {
  margin: 0.85rem 0;
  border-left: 3px solid var(--color-subtle);
  background: var(--color-soft-bg);
  padding: var(--space-5) 0.8rem;
}

.callout-title,
.admonition-title {
  margin-bottom: var(--space-2);
  font-weight: bold;
}

.callout-body p,
.admonition p {
  margin: var(--space-2) 0;
}

.callout-warning,
.callout-danger,
.callout-error,
.admonition.warning,
.admonition.danger,
.admonition.error {
  border-left-color: #a55;
}

.callout-tip,
.callout-success,
.callout-note,
.callout-info,
.admonition.tip,
.admonition.success,
.admonition.note,
.admonition.info {
  border-left-color: #577;
}

.arithmatex {
  overflow-x: auto;
}

.mermaid {
  margin: var(--space-6) 0;
  background: transparent;
  padding: 0;
}

@media (max-width: 600px) {
  :root {
    --page-margin: 1rem;
  }
}