/*
 * site.css - Jekyll Site Shell
 *
 * Controls the page chrome: header, navigation, footer, and main layout.
 * Also styles markdown content authored in Jekyll pages (outside .lex-document).
 * Does NOT style .lex-* elements - see lex-content.css for that.
 */

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

/* === Page Layout === */
html {
  font-size: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--lex-font-text);
  line-height: 1.6;
  color: var(--lex-normal);
  background: var(--lex-bg);
  max-width: var(--lex-width-site);
  margin: 0 auto;
  padding: var(--lex-space-200) var(--lex-space-100) 4rem;
}

/* === Header === */
header {
  margin-bottom: 3rem;
  padding-bottom: var(--lex-space-100);
  border-bottom: var(--lex-border-thin) solid var(--lex-border);
}

header h1 {
  font-family: var(--lex-font-headings);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--lex-space-050);
}

header p {
  color: var(--lex-muted);
  margin: 0;
}

/* === Navigation === */
nav {
  margin-top: var(--lex-space-100);
}

nav a {
  margin-right: var(--lex-space-150);
  color: var(--lex-link);
  text-decoration: none;
  font-weight: 500;
}

nav a:last-child {
  margin-right: 0;
}

nav a:hover,
nav a:focus {
  text-decoration: underline;
}

/* === Main Content Area === */
main {
  margin-bottom: 3rem;
}

/* === Markdown Content (non-lex) === */
main > h1,
main > h2,
main > h3,
main > h4,
main > h5,
main > h6 {
  font-family: var(--lex-font-headings);
  font-weight: 700;
  margin-top: var(--lex-space-200);
  margin-bottom: var(--lex-space-100);
}

main > h1:first-child,
main > h2:first-child,
main > h3:first-child {
  margin-top: 0;
}

main > p {
  margin-bottom: var(--lex-space-100);
}

main > ul,
main > ol {
  margin-left: var(--lex-space-200);
  margin-bottom: var(--lex-space-100);
}

main > blockquote {
  margin: var(--lex-space-100) 0;
  padding-left: var(--lex-space-100);
  border-left: 4px solid var(--lex-border);
  color: var(--lex-muted);
}

/* Inline code in markdown */
main code {
  background: var(--lex-code-bg);
  padding: 0.2em 0.4em;
  border-radius: var(--lex-radius-sm);
  font-family: var(--lex-font-verbatim);
  font-size: 0.9em;
}

/* Code blocks in markdown */
main pre {
  background: var(--lex-code-bg);
  padding: var(--lex-space-100);
  border-radius: var(--lex-radius-md);
  overflow-x: auto;
  margin: var(--lex-space-100) 0;
}

main pre code {
  background: none;
  padding: 0;
}

/* === Footer === */
footer {
  margin-top: 3rem;
  padding-top: var(--lex-space-100);
  border-top: var(--lex-border-thin) solid var(--lex-border);
  color: var(--lex-muted);
  font-size: 0.9rem;
}