/* reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* solarized light */
:root {
  --bg: #fdf6e3;
  --bg-alt: #eee8d5;
  --fg: #586e75;
  --fg-emphasis: #073642;
  --fg-muted: #93a1a1;
  --link: #268bd2;
  --link-hover: #2aa198;
  --code-bg: #eee8d5;
  --border: #d3cbb7;
  --green: #859900;
  --orange: #cb4b16;
  --red: #dc322f;
  --magenta: #d33682;
  --violet: #6c71c4;
  --cyan: #2aa198;
  --yellow: #b58900;
}

/* base */
html {
  font-size: 16px;
}

body {
  font-family: 'xterm', 'IBM Plex Mono', 'Courier New', monospace;
  color: var(--fg);
  background-color: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-transform: lowercase;
}

/* font toggle — when .font-serif is on body, switch to lora */
body.font-serif {
  font-family: 'Lora', Georgia, serif;
}

/* layout */
header, main, footer {
  max-width: 650px;
  margin: 0 auto;
  padding: 0 1rem;
}

main {
  padding-top: 2rem;
  padding-bottom: 2rem;
  min-height: calc(100vh - 10rem);
}

/* navigation */
nav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg-emphasis);
  text-decoration: none;
  transition: color 0.1s;
}

.site-name:hover {
  color: var(--link);
}

.nav-links {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
}

.nav-links a {
  font-size: 0.95rem;
}

/* font toggle button */
.font-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-family: inherit;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  cursor: pointer;
  border-radius: 3px;
  transition: color 0.1s, border-color 0.1s;
  text-transform: lowercase;
  line-height: 1.4;
}

.font-toggle:hover {
  color: var(--fg);
  border-color: var(--fg-muted);
}

/* links */
a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.1s;
}

a:visited {
  color: var(--link);
}

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

/* tagline */
.tagline {
  color: var(--fg-muted);
  margin-bottom: 2rem;
  font-size: 1rem;
}

/* post list */
.post-entry {
  margin-bottom: 1.5rem;
}

.post-entry > a {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fg-emphasis);
}

.post-entry > a:hover {
  color: var(--link);
}

.post-meta {
  color: var(--fg-muted);
  font-size: 0.85rem;
  margin-top: 0.2rem;
  line-height: 1.5;
}

/* article */
article h1 {
  font-size: 1.5rem;
  line-height: 1.3;
  margin-bottom: 0.25rem;
  color: var(--fg-emphasis);
}

.post-date {
  color: var(--fg-muted);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}

article h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--fg-emphasis);
}

article h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--fg-emphasis);
}

article p {
  margin-bottom: 1.25rem;
}

article ul, article ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

article li {
  margin-bottom: 0.35rem;
}

article blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  color: var(--fg-muted);
  margin-bottom: 1.25rem;
}

article img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

article figure {
  margin-bottom: 1.25rem;
}

article figcaption {
  display: block;
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-align: center;
  margin-top: 0.5rem;
}

article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

article table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.25rem;
}

article th, article td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  text-align: left;
}

article th {
  font-weight: 700;
  color: var(--fg-emphasis);
}

/* code */
code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  background-color: var(--code-bg);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
  text-transform: none;
}

pre {
  background-color: var(--code-bg);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
  border-radius: 4px;
  line-height: 1.5;
  text-transform: none;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.8rem;
}

/* footer */
footer {
  padding-top: 2rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--fg-muted);
}

footer p {
  margin-bottom: 0.35rem;
}

footer a {
  color: var(--fg-muted);
  transition: color 0.1s;
}

footer a:visited {
  color: var(--fg-muted);
}

footer a:hover {
  color: var(--link);
  text-decoration: underline;
}

/* back link */
.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
}

/* error/info message */
.info-msg {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

.info-msg pre {
  margin-top: 0.5rem;
}

/* search */
.search-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--fg);
  background-color: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  margin-bottom: 1.5rem;
  outline: none;
  text-transform: lowercase;
}

.search-input::placeholder {
  color: var(--fg-muted);
}

.search-input:focus {
  border-color: var(--link);
}