/*
 * theme.css
 *
 * Refreshed look for the Hyde layout: light sidebar with a portrait,
 * Inter throughout.
 *
 * Loaded AFTER poole.css and hyde.css, so everything here is an override.
 * Delete the <link> in _includes/head.html to fall back to the old theme.
 *
 * NOTE ON SPECIFICITY: hyde.css sets `.sidebar a { color: #fff }`, which beats
 * a bare `.sidebar-nav-item` rule. Anything recolouring a sidebar link must
 * match that selector's weight or higher, or the link stays white.
 */

:root {
  --bg:          #fdfdfc;
  --rule:        #e4e0da;
  --text:        #23201d;
  --muted:       #6b6660;
  --accent:      #9a3f2b;
  --accent-soft: #ecdfd9;

  /* Sidebar. For a dark sidebar instead, set --sidebar-bg to #262b31 and
     swap the three values below for:
       --sidebar-text:   rgba(255,255,255,.74);
       --sidebar-strong: #ffffff;
       --sidebar-rule:   rgba(255,255,255,.15);  */
  --sidebar-bg:     #f1efeb;
  --sidebar-text:   #5f5a54;
  --sidebar-strong: #23201d;
  --sidebar-rule:   #ded9d1;

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}


/* Base
   ------------------------------------------------------------------ */

html {
  font-size: 17px;
}
@media (min-width: 48em) {
  html { font-size: 18px; }
}

body {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-soft);
  transition: border-color .15s ease;
}
a:hover,
a:focus {
  color: var(--accent);
  text-decoration: none;
  border-bottom-color: var(--accent);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -.014em;
  line-height: 1.3;
  color: var(--text);
}

hr {
  margin: 2rem 0;
  border: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 0;
}

blockquote {
  margin: 1.5rem 0;
  padding: .25rem 0 .25rem 1.25rem;
  border-left: 3px solid var(--rule);
  color: var(--muted);
  font-style: normal;
}

code, pre {
  font-family: "SF Mono", "IBM Plex Mono", Menlo, Consolas, monospace;
  font-size: .85em;
}
code {
  padding: .1em .35em;
  background-color: #f2f0ec;
  border-radius: 3px;
  color: #7a3c28;
}
pre {
  padding: 1rem 1.25rem;
  background-color: #f7f5f2;
  border: 1px solid var(--rule);
  border-radius: 4px;
  line-height: 1.55;
}
pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

table {
  font-size: .95rem;
}
th, td {
  border-color: var(--rule);
}

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


/* Sidebar
   ------------------------------------------------------------------ */

.sidebar {
  background-color: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 2.5rem 1.5rem;
}
@media (min-width: 48em) {
  .sidebar {
    width: 17rem;
    border-right: 1px solid var(--sidebar-rule);
    padding: 3rem 2rem;
  }
}

/* Overrides hyde.css `.sidebar a { color: #fff }` — see note at top. */
.sidebar a {
  color: var(--sidebar-text);
  border-bottom: 0;
}
.sidebar a:hover,
.sidebar a:focus {
  color: var(--accent);
  text-decoration: none;
}

/* Portrait */
.sidebar-photo {
  display: block;
  width: 104px;
  height: 104px;
  margin: 0 auto 1.1rem;
  border-radius: 50%;
  object-fit: cover;
  background-color: #e2ddd6;
  box-shadow: 0 0 0 1px var(--sidebar-rule);
}
@media (min-width: 48em) {
  .sidebar-photo {
    margin-left: 0;
    margin-right: 0;
  }
}

.sidebar-about {
  margin-bottom: 1.75rem;
}
.sidebar-about h1 {
  margin: 0 0 .3rem;
  font-family: var(--sans);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -.022em;
  line-height: 1.25;
  color: var(--sidebar-strong);
}
.sidebar-about h1 a {
  color: var(--sidebar-strong);
}
.sidebar-about h1 a:hover {
  color: var(--accent);
}
.sidebar-about .lead {
  margin: 0;
  font-size: .82rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--sidebar-text);
}

/* Navigation */
.sidebar-nav {
  margin-bottom: .25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--sidebar-rule);
}
.sidebar a.sidebar-nav-item {
  display: block;
  padding: .12rem 0;
  font-size: .9rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--sidebar-text);
}
.sidebar a.sidebar-nav-item:hover,
.sidebar a.sidebar-nav-item:focus {
  color: var(--accent);
  text-decoration: none;
}
.sidebar .sidebar-nav-item.active {
  font-weight: 600;
  color: var(--sidebar-strong);
}

/* External links list below the nav */
.sidebar-nav + ul {
  margin: .75rem 0 0;
  padding-left: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--sidebar-rule);
  list-style: none;
}
.sidebar-nav + ul li {
  line-height: 1.9;
}
.sidebar-nav + ul li a {
  font-size: .85rem;
  color: var(--sidebar-text);
}
.sidebar-nav + ul li a:hover {
  color: var(--accent);
}
.sidebar-nav + ul li .fa {
  width: 1.1em;
  margin-right: .2rem;
  text-align: center;
}

.sidebar-sticky > p:last-child {
  margin-top: 1.5rem;
  font-size: .72rem;
  color: #8f8981;
}


/* Content
   ------------------------------------------------------------------ */

@media (min-width: 48em) {
  .content {
    max-width: 40rem;
    margin-left: 20rem;
  }
}
@media (min-width: 64em) {
  .content {
    margin-left: 22rem;
  }
}

.page-title,
.post-title,
.post-title a {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--text);
}
.post-title a {
  border-bottom: 0;
}
.page-title {
  margin-bottom: .75rem;
}

.content h3 {
  margin-top: 2rem;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}

.content ul,
.content ol {
  padding-left: 1.25rem;
}
.content li {
  margin-bottom: .3rem;
}

/* `well` and `tight-details` are inherited from an older Bootstrap theme;
   give them something sensible to do. */
.well {
  margin-bottom: 1.5rem;
}
.tight-details {
  padding-left: 0;
  list-style: none;
}
.tight-details li {
  margin-bottom: .45rem;
  padding-left: 0;
  font-size: .93rem;
  line-height: 1.55;
  color: var(--muted);
}

.contact-details {
  font-size: .93rem;
  color: var(--muted);
}

.post-date {
  font-size: .82rem;
  color: var(--muted);
}


/* MathJax should not inherit the link underline treatment */
mjx-container a {
  border-bottom: 0;
}