@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;600&display=swap');

:root {
  --bg: #f1f1ee;
  --ink: #111111;
  --accent: #f04f24;
  --accent-2: #145fe3;
  --paper: #fbfbf8;
  --grid: rgba(0, 0, 0, 0.05);
  --border: #111111;
}

/* Global */
body {
  background:
    linear-gradient(0deg, var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--bg);
  background-size: 20px 20px, 20px 20px, auto;
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
}

.md-container {
  background: transparent;
}

.md-main__inner {
  background: var(--paper);
  border: 2px solid var(--border);
  box-shadow: 4px 4px 0 var(--border);
  padding: 1.1rem 1.2rem;
}

.md-header, .md-tabs {
  background: var(--paper);
  color: var(--ink);
  border-bottom: 2px solid var(--border);
}

.md-header__title, .md-tabs__link {
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.01em;
}

.md-typeset {
  font-size: 0.78rem;
  line-height: 1.5;
}

.md-typeset h1, .md-typeset h2, .md-typeset h3 {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.15;
}

.md-typeset h1, .md-typeset h2 {
  font-weight: 700;
}

.md-typeset h3 {
  font-weight: 600;
}

.md-typeset h1 {
  font-size: 2.5em;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.2rem;
  margin-bottom: 0.8rem;
}

.md-typeset h2 {
  margin-top: 1.2rem;
  margin-bottom: 0.45rem;
}

.md-typeset h3 {
  margin-top: 0.95rem;
  margin-bottom: 0.3rem;
}

.md-typeset p,
.md-typeset ul,
.md-typeset ol {
  margin-top: 0.35rem;
  margin-bottom: 0.55rem;
}

.md-typeset a {
  color: var(--accent-2);
  text-decoration: none;
}

.md-typeset a:hover {
  color: var(--accent);
}

.md-nav__link,
.md-tabs__link,
.md-header__button,
.md-header__topic,
.md-search__link,
.md-search-result__link {
  text-decoration: none !important;
}

.md-typeset hr {
  border-top: 2px solid var(--border);
}

.md-typeset code, .md-typeset pre {
  font-family: "IBM Plex Mono", monospace;
}

.md-typeset code {
  font-size: 0.9em;
}

.md-typeset pre {
  border: 2px solid var(--border);
  box-shadow: 3px 3px 0 var(--border);
}

.md-typeset blockquote {
  border-left: 4px solid var(--border);
  background: #f4f0e6;
}

/* Keep inline math consistent with surrounding text */
.md-typeset .arithmatex {
  font-size: 1em;
}

/* Prevent display math from clipping */
.MathJax_Display {
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
}

/* MathJax v3 uses mjx-container instead of .MathJax_Display */
.md-typeset mjx-container[display="true"] {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}

/* Section-specific math sizing */
.md-typeset .formula {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
}

.md-typeset .formula .arithmatex,
.md-typeset .formula .MathJax_Display {
  display: block;
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
}

.md-typeset .formula mjx-container[display="true"] {
  margin: 0;
  min-width: max-content;
  text-align: left !important;
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
}

.md-typeset .parameters {
  font-size: 0.95em;
}

.md-typeset .parameters .arithmatex {
  font-size: 0.95em;
}

/* Buttons and pills */
.md-button {
  border: 2px solid var(--border);
  box-shadow: 2px 2px 0 var(--border);
  background: var(--paper);
  color: var(--ink);
}

/* Sidebar */
.md-sidebar {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.72rem;
}

.md-nav__link--active {
  color: var(--accent);
  font-weight: 700;
}

.md-nav__title,
.md-nav__item .md-nav__link {
  letter-spacing: 0.01em;
}

@media (max-width: 900px) {
  .md-main__inner {
    padding: 0.9rem;
    box-shadow: 2px 2px 0 var(--border);
  }

  .md-typeset .formula .arithmatex,
  .md-typeset .formula .MathJax_Display,
  .md-typeset .formula mjx-container[display="true"] {
    font-size: clamp(1rem, 4vw, 1.35rem);
  }
}

/* Per-card tag pills (rendered by assets/tag-pills.js) */
.md-typeset .card-tags-footer {
  margin-top: 1.25rem;
  padding-top: 0.9rem;
  border-top: 1px solid color-mix(in srgb, var(--border) 20%, transparent);
}

.md-typeset .card-tags-label {
  margin-bottom: 0.45rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--ink) 55%, white);
}

.md-typeset .card-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.md-typeset .card-tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border) 16%, white);
  background: color-mix(in srgb, var(--paper) 76%, #d9d9d9);
  color: color-mix(in srgb, var(--ink) 72%, white);
  font-size: 0.78rem;
  line-height: 1.35;
  text-decoration: none;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}

.md-typeset .card-tag-pill:hover,
.md-typeset .card-tag-pill:focus-visible {
  background: color-mix(in srgb, var(--paper) 62%, #c9c9c9);
  border-color: color-mix(in srgb, var(--border) 28%, white);
  color: var(--ink);
}

/* Plot blocks (rendered from ```plot fences by assets/plot-blocks.js) */
.md-typeset .plot-block-figure {
  margin: 1rem 0 1.25rem;
  padding: 0.7rem;
  border: 2px solid var(--border);
  background: color-mix(in srgb, var(--paper) 88%, white);
  box-shadow: 2px 2px 0 var(--border);
}

.md-typeset .plot-block-canvas {
  width: 100%;
  overflow-x: auto;
}

.md-typeset .plot-block-canvas svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.md-typeset .plot-block-caption {
  margin-top: 0.45rem;
  font-size: 0.8rem;
  color: color-mix(in srgb, var(--ink) 72%, white);
}

.md-typeset .plot-block-error {
  margin: 0.5rem 0 1rem;
  padding: 0.45rem 0.6rem;
  border-left: 4px solid #b42318;
  background: #fff1ef;
  color: #7a271a;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
}

/* Homepage formula-of-the-day banner (rendered by assets/formula-of-day.js) */
.md-typeset .formula-of-day-banner {
  margin: 0 0 1.1rem;
  padding: 0.75rem 0.85rem 0.8rem;
  border: 2px solid var(--border);
  box-shadow: 3px 3px 0 var(--border);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--paper) 86%, #e8ecef), var(--paper));
}

.md-typeset .formula-of-day-eyebrow {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 0.15rem;
}

.md-typeset .formula-of-day-meta {
  font-size: 0.8rem;
  opacity: 0.8;
  margin-bottom: 0.35rem;
}

.md-typeset .formula-of-day-title {
  display: inline-block;
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.md-typeset .formula-of-day-math {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  overflow-x: auto;
}