/* adapted from sadgrl's layout builder: https://codepen.io/sadness97/full/XJbLxNj */

* { box-sizing: border-box; }

/* ---------- colors and fonts: change the look here ---------- */
:root {
  /* neutrals (black, white, gray) */
  --page:        #0b0b0b;  /* shows behind the background tile while it loads */
  --panel:       #0b0b0b;  /* featured bar, nav bar, footer, sidebars, name label, cards */
  --panel-main:  #111111;  /* center column */
  --text:        #dddddd;
  --link:        #ffffff;
  --muted:       #8f8f8f;  /* dates, small print */
  --line:        #3a3a3a;  /* neutral box borders */
  --edge:        #000000;  /* outline around boxes that sit on the background */

  /* accents: only on heading bars, project cards, and nav links */
  --bar-center:  #0f7676;  /* center column heading bars */
  --bar-side:    #0a4f4f;  /* sidebar heading bars */
  --bar-text:    #ffffff;
  --accent:      #3fd0c9;  /* nav links, project card borders, thumbnail frames */

  /* fonts */
  --heading-font: 'VT323', 'Courier New', monospace;
  --body-font:    'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
}

/* VT323 by The VT323 Project Authors, SIL Open Font License (assets/fonts/vt323/OFL.txt) */
@font-face {
  font-family: 'VT323';
  src: url('/assets/fonts/vt323/VT323-Regular.ttf') format('truetype');
  font-display: swap;
}

/* IBM Plex Sans by IBM Corp., SIL Open Font License (assets/fonts/ibm-plex-sans/OFL.txt) */
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/ibm-plex-sans/IBMPlexSans-Regular-Latin1.woff2') format('woff2');
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/ibm-plex-sans/IBMPlexSans-Italic-Latin1.woff2') format('woff2');
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/ibm-plex-sans/IBMPlexSans-Bold-Latin1.woff2') format('woff2');
  font-weight: bold;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/ibm-plex-sans/IBMPlexSans-BoldItalic-Latin1.woff2') format('woff2');
  font-weight: bold;
  font-style: italic;
  font-display: swap;
}

/* ---------- page ---------- */
body {
  margin: 0;
  background-color: var(--page);
  background-image: url('/assets/images/backgrounds/black.jpg');
  background-repeat: repeat;
  color: var(--text);
  font-family: var(--body-font);
  line-height: 1.5;
}

/* wraps the whole site */
#container {
  max-width: 900px;
  margin: 0 auto;
}

#container a {
  color: var(--link);
  font-weight: bold;
}

#topBar {
  width: 100%;
  padding: 10px;
  font-size: smaller;
  background-color: var(--panel);
}

/* header: map graphic with my name in a label */
#header {
  display: flex;
  align-items: flex-end;
  width: 100%;
  height: 160px;
  padding: 16px 20px;
  background-color: var(--page);
  background-image: url('/assets/images/header/header.jpg');
  background-size: cover;
  background-position: center;
}

#header a {
  padding: 2px 12px;
  background-color: var(--panel);
  border: 1px solid var(--text);
  color: var(--bar-text) !important;
  font-family: var(--heading-font);
  font-size: 38px;
  font-weight: normal;
  letter-spacing: 2px;
  text-decoration: none;
}

#navbar {
  margin: 8px 0;
  padding: 8px 0;
  background-color: var(--panel);
}

#navbar ul {
  display: flex;
  justify-content: space-evenly;
  margin: 0;
  padding: 0;
  list-style-type: none;
}

#container #navbar li a {
  color: var(--accent);
  font-family: var(--heading-font);
  font-size: 24px;
  font-weight: normal;
  letter-spacing: 2px;
  text-decoration: none;
}

/* ---------- commodity ticker (data: _data/ticker.json, from FRED) ---------- */
#ticker {
  position: relative;
  overflow: hidden;
  margin: 0 0 8px;
  background-color: var(--panel);
  font-family: var(--heading-font);
  font-size: 16px;
  letter-spacing: 1px;
  white-space: nowrap;
}

/* softer text so the strip doesn't shout */
.ticker-track { opacity: 0.7; }

/* gradient layers over each end fade the text into the strip's background */
#ticker::before,
#ticker::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 1;
  width: 80px;
  pointer-events: none;
}
#ticker::before { left: 0;  background: linear-gradient(to right, var(--panel), transparent); }
#ticker::after  { right: 0; background: linear-gradient(to left,  var(--panel), transparent); }

/* two copies of the list side by side; sliding left by one copy loops seamlessly */
.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker-scroll 90s linear infinite;
}

.ticker-list {
  display: flex;
  margin: 0;
  padding: 4px 0;
  list-style: none;
}

.ticker-list li { padding: 0 22px; border-right: 1px solid var(--line); }
.t-label { color: var(--link); }
.t-up { color: var(--accent); }
.t-down, .t-flat, .t-date, .t-source { color: var(--muted); }

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* visitors who ask for less motion get a still strip they can scroll sideways */
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
  #ticker { overflow-x: auto; }
}

/* ---------- columns ---------- */
#flex { display: flex; }

aside {
  background-color: var(--panel);
  width: 200px;
  padding: 20px;
  font-size: smaller;
}

main {
  background-color: var(--panel-main);
  flex: 1;
  padding: 20px;
  order: 2;
  min-width: 0;
}

#leftSidebar { order: 1; margin-right: 12px; }
#rightSidebar { order: 3; margin-left: 12px; }

aside ul { padding-left: 18px; }
aside li { margin-bottom: 8px; }

footer {
  margin-top: 8px;
  padding: 10px;
  background-color: var(--panel);
  text-align: center;
  font-size: smaller;
}

/* thin outline around the boxes that sit on the background (doesn't shift layout) */
#topBar, #header, #navbar, #ticker, aside, main, footer {
  outline: 1px solid var(--edge);
}

/* ---------- headings ---------- */
h1, h2, h3, strong { color: var(--link); }
h1 { font-size: 25px; }

/* column headings: a colored bar across the column */
.bar {
  margin: 0 0 12px;
  padding: 2px 8px;
  background-color: var(--bar-side);
  color: var(--bar-text);
  font-family: var(--heading-font);
  font-size: 21px;
  font-weight: normal;
  letter-spacing: 2px;
  text-align: center;
}

* + .bar { margin-top: 20px; }

/* center column headings: bigger */
main .bar {
  padding: 4px 8px;
  line-height: 1.2;
  background-color: var(--bar-center);
  font-size: 32px;
}

/* ---------- boxes ---------- */
/* plain box (latest post) */
.box {
  border: 1px solid var(--line);
  padding: 0 10px;
}

/* left column logos: one row of four linked squares */
.logos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.logos li { margin: 0; }
.logos img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }

/* right column post list: shows as many posts as fit beside the center column, then fades out */
#rightSidebar { display: flex; flex-direction: column; }

.post-fill {
  position: relative;
  flex: 1;
  min-height: 90px;
}

/* taken out of the normal flow so the list never makes the column taller */
.post-list {
  position: absolute;
  inset: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-list li { margin: 0 0 8px; padding: 8px 10px; }

.post-fill::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 40px;
  background: linear-gradient(to top, var(--panel), transparent);
  pointer-events: none;
}

.all-posts { margin: 8px 0 0; }

/* project card: thumbnail on the left, text on the right */
.project {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
  padding: 10px;
  background-color: var(--panel);
  border: 2px solid var(--accent);
}

.project img {
  display: block;
  width: 110px;
  height: auto;
  border: 2px solid var(--accent);
}

.project h3 { margin: 0 0 4px; font-size: 18px; }
.project h3 small { font-weight: normal; font-style: italic; }
.project p { margin: 0; }

/* photos at the bottom of a project page */
.gallery { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.gallery img { max-width: 100%; width: 300px; height: auto; border: 1px solid var(--line); }

small { color: var(--muted); }

/* ---------- code and math in posts ---------- */
pre {
  overflow-x: auto;
  padding: 10px;
  background-color: var(--panel);
  border: 1px solid var(--line);
}

.highlight .c, .highlight .c1, .highlight .cm { color: var(--muted); font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .nb { color: var(--link); font-weight: bold; }

mjx-container[display="true"] { overflow-x: auto; overflow-y: hidden; }

/* ---------- phones: stack everything, main content first ---------- */
@media only screen and (max-width: 800px) {
  #flex { flex-wrap: wrap; }
  aside { width: 100%; }
  main { order: 1; }
  #leftSidebar { order: 2; margin: 12px 0 0; }
  #rightSidebar { order: 3; margin: 12px 0 0; }
  #navbar ul { flex-wrap: wrap; }
  .project img { width: 80px; }
  .logos { grid-template-columns: repeat(4, 1fr); max-width: 360px; }
  /* stacked on phones, so there's no column height to fill: show the 3 newest */
  .post-fill { min-height: 0; }
  .post-fill::after { display: none; }
  .post-list { position: static; }
  .post-list li:nth-child(n+4) { display: none; }
  #header { height: 110px; }
  #header a { font-size: 30px; }
}