:root {
  --bg: #ffffff;
  --fg: #161616;
  --muted: #767676;
  --border: rgba(0, 0, 0, 0.1);
  --accent: #2563eb;
  --tag-fg: #be185d;
  --tag-border: rgba(190, 24, 93, 0.4);
  --code-bg: #f4f4f5;
  --toggle-bg: #ffffff;
  --toggle-border: rgba(0, 0, 0, 0.12);
  --font-display: "DM Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Karla", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --content-width: 620px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --fg: #ededed;
    --muted: #8a8a8a;
    --border: rgba(255, 255, 255, 0.12);
    --accent: #60a5fa;
    --tag-fg: #f472b6;
    --tag-border: rgba(244, 114, 182, 0.4);
    --code-bg: #1b1b1b;
    --toggle-bg: #1b1b1b;
    --toggle-border: rgba(255, 255, 255, 0.14);
  }
}

:root[data-theme="dark"] {
  --bg: #111111;
  --fg: #ededed;
  --muted: #8a8a8a;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #60a5fa;
  --tag-fg: #f472b6;
  --tag-border: rgba(244, 114, 182, 0.4);
  --code-bg: #1b1b1b;
  --toggle-bg: #1b1b1b;
  --toggle-border: rgba(255, 255, 255, 0.14);
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --fg: #161616;
  --muted: #767676;
  --border: rgba(0, 0, 0, 0.1);
  --accent: #2563eb;
  --tag-fg: #be185d;
  --tag-border: rgba(190, 24, 93, 0.4);
  --code-bg: #f4f4f5;
  --toggle-bg: #ffffff;
  --toggle-border: rgba(0, 0, 0, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.layout {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 24px 96px;
  display: flex;
  align-items: flex-start;
  gap: 56px;
}

/* Nav */
.site-nav {
  position: sticky;
  top: 56px;
  flex: 0 0 96px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
}

.site-nav a:hover {
  color: var(--fg);
}

.site-nav a[aria-current="page"] {
  color: var(--fg);
  font-weight: 500;
}

/* Main */
.site-main {
  flex: 1 1 auto;
  min-width: 0;
  max-width: var(--content-width);
}

h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 24px;
}

h1 + .subtitle {
  font-family: var(--font-body);
  color: var(--muted);
  font-size: 14px;
  margin: -16px 0 24px;
}

h2 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 36px 0 12px;
}

h2.section-heading {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--fg);
  margin: 40px 0 16px;
}

p {
  font-family: var(--font-body);
  line-height: 1.625;
  margin: 0 0 16px;
}

a {
  color: var(--accent);
}

a:hover {
  text-decoration: none;
}

/* Footer */
.site-footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
}

.site-footer .socials a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
}

.site-footer .socials a:hover {
  text-decoration-color: var(--accent);
  color: var(--accent);
}

/* Works list */
.works-list {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.work-item-head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 5px;
}

.work-item-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
}

.work-item-head h3 a {
  color: var(--fg);
  text-decoration: none;
}

.work-item-head h3 a:hover {
  color: var(--accent);
}

.tag {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 400;
  color: var(--tag-fg);
  border: 1px solid var(--tag-border);
  border-radius: 999px;
  padding: 2px 8px;
}

.work-item p {
  font-family: var(--font-body);
  margin: 0;
  color: var(--muted);
}

/* Blog list */
.post-list {
  display: flex;
  flex-direction: column;
}

.post-list-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--fg);
}

.post-list-item:first-child {
  border-top: 1px solid var(--border);
}

.post-list-item:hover .post-list-title {
  color: var(--accent);
}

.post-list-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
}

.post-list-date {
  flex: 0 0 auto;
  font-family: var(--font-body);
  color: var(--muted);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Post article */
.post-date {
  font-family: var(--font-body);
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 28px;
}

.post h2 {
  font-size: 1.125rem;
  margin-top: 36px;
}

.post pre {
  background: var(--code-bg);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 0 0 18px;
}

.post code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.post p code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

.post pre code {
  background: none;
  padding: 0;
}

/* Empty state */
.empty-state {
  padding: 32px 0;
  color: var(--muted);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.placeholder-note {
  margin-top: 40px;
  padding: 12px 14px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--muted);
}

.placeholder-note code {
  font-family: var(--font-mono);
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

/* Theme toggle */
.theme-toggle {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun {
    display: none;
  }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon {
    display: block;
  }
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* Responsive */
@media (max-width: 640px) {
  .layout {
    flex-direction: column;
    gap: 28px;
    padding: 40px 20px 80px;
  }

  .site-nav {
    position: static;
    flex-direction: row;
    gap: 20px;
  }
}