:root {
  --font-sans: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol", "Noto Color Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  --color-text: #0f172a;
  --color-muted: #64748b;
  --color-muted-soft: #94a3b8;
  --color-accent: #b91c1c;
  --color-link: #1d4ed8;
  --color-link-hover: #1e40af;
  --color-border: #e2e8f0;
  --color-surface: #ffffff;
  --color-surface-alt: #f8fafc;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--default-font-family, var(--font-sans));
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 150ms ease;
}

a:hover,
a:focus-visible {
  color: var(--color-link-hover);
  text-decoration: underline;
}

.blog-shell {
  min-height: 100vh;
  background: var(--color-surface);
}

.blog-container {
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 2rem;
}

@media (min-width: 768px) {
  .blog-container {
    padding: 2rem;
  }
}

.blog-header {
  margin-bottom: 2.5rem;
}

.blog-header__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1rem;
}

.blog-header h1 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.blog-header h1 a {
  color: inherit;
  text-decoration: none;
}

.blog-header h1 a:hover,
.blog-header h1 a:focus-visible {
  color: var(--color-link-hover);
  text-decoration: none;
}

.blog-nav {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
  text-transform: lowercase;
}

.blog-nav__link {
  color: var(--color-muted);
  font-weight: 500;
}

.blog-nav__link:hover,
.blog-nav__link:focus-visible {
  color: var(--color-text);
  text-decoration: none;
}

.blog-post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.blog-post-list__item {
  display: flex;
  flex-wrap: nowrap;
  align-items: baseline;
  gap: 0.45rem;
  margin-bottom: 8px;
}

.blog-year-group {
  margin-bottom: 2.5rem;
}

.blog-year-heading {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.blog-post__date {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: oklch(0.707 0.022 261.325);
  white-space: nowrap;
}

.blog-post__separator {
  color: var(--color-muted-soft);
  font-size: 1rem;
  white-space: nowrap;
}

.blog-post__link {
  font-weight: 400;
  flex: 1 1 auto;
  min-width: 0;
  color: var(--color-link);
}

.blog-pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-muted);
}

.blog-pagination__placeholder {
  color: var(--color-muted-soft);
}

.blog-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-muted);
}

.blog-empty {
  color: var(--color-muted);
}

/* Detail */
.blog-post-hero {
  margin-bottom: 2rem;
}

.blog-post-title {
  font-weight: 700;
  font-size: 1.1rem;
}

.blog-post-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-top: 0.2rem;
  color: #475569;
}

.blog-article {
}

.blog-article p,
.blog-article h1,
.blog-article h2,
.blog-article h3,
.blog-article h4,
.blog-article h5,
.blog-article h6 {
  margin: 1.4rem 0 0.6rem;
}

.blog-article h1,
.blog-article h2,
.blog-article h3,
.blog-article h4,
.blog-article h5,
.blog-article h6 {
  font-size: 1.1rem;
  font-weight: 700;
}

.blog-article ul,
.blog-article ol {
  padding-left: 1.25rem;
  margin: 1.2rem 0;
}

.blog-article li + li {
  margin-top: 0.35rem;
}

.blog-article blockquote {
  margin: 2rem 0;
  padding: 0.1rem 1.5rem 0.75rem 1.5rem;
  border-left: 4px solid oklch(0.623 0.214 259.815);
  background: var(--color-surface-alt);
  border-radius: 0.25rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.blog-article table {
  width: auto;
  max-width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
}

.blog-article th,
.blog-article td {
  text-align: left;
  padding: 0.55rem 0.65rem;
  color: var(--color-text);
  border: none;
}

.blog-article th:first-child,
.blog-article td:first-child {
  padding-left: 0;
}

.blog-article th:last-child,
.blog-article td:last-child {
  padding-right: 0;
}

.blog-article thead th {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--color-muted);
  text-transform: none;
  box-shadow: inset 0 -1px 0 var(--color-border);
}


.blog-article pre {
  background: var(--color-surface-alt);
  border-left: 4px solid #22c55e;
  padding: 1rem 1.25rem;
  border-radius: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.blog-article .code-block {
  position: relative;
}

.blog-article .code-block pre {
  margin: 0;
}

.blog-article .code-copy {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  min-width: 2.25rem;
  min-height: 2.25rem;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--color-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0.1rem;
  z-index: 1;
  opacity: 0;
  transition: background 140ms ease, color 140ms ease, transform 80ms ease, opacity 140ms ease;
  line-height: 1;
}

.blog-article .code-block:hover .code-copy,
.blog-article .code-block:focus-within .code-copy,
.blog-article .code-copy:focus-visible {
  opacity: 1;
}

.blog-article .code-copy:hover,
.blog-article .code-copy:focus-visible {
  background: rgba(148, 163, 184, 0.25);
  color: var(--color-text);
}

.blog-article .code-copy:active {
  transform: translateY(1px);
  background: rgba(148, 163, 184, 0.4);
}

.blog-article .code-copy:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.7);
  outline-offset: 2px;
}

.blog-article .code-copy svg {
  width: 1rem;
  height: 1rem;
  stroke: currentColor;
  fill: none;
  transition: opacity 120ms ease;
}

.blog-article .code-copy .code-copy__icon--check {
  display: none !important;
}

.blog-article .code-copy.is-copied {
  background: rgba(34, 197, 94, 0.14);
  color: #16a34a;
}

.blog-article .code-copy.is-copied .code-copy__icon--copy {
  display: none !important;
}

.blog-article .code-copy.is-copied .code-copy__icon--check {
  display: inline-block !important;
}

.blog-article code {
  font-family: var(--font-mono);
}

.blog-article img,
.blog-article figure {
  max-width: 100%;
  height: auto;
  display: block;
}

.blog-article img {
  margin: 1.25rem 0;
  border-radius: 0.35rem;
}

.blog-related {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--color-border);
}

.blog-related h3 {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--color-muted);
}

.blog-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.blog-related__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
  font-size: 1rem;
  margin-bottom: 8px;
}

@media (max-width: 640px) {
  .blog-container {
    padding: 2rem 1.25rem 2rem;
  }

  .blog-header__title {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .blog-post-list__item {
    align-items: baseline;
    gap: 0.25rem 0.45rem;
  }

  .blog-pagination {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .blog-article {
    font-size: 1rem;
  }

  .blog-article table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}