/* V348 concept tooltips, concept index, and applied-example callouts. */

.mc-concept {
  border-radius: 0.18rem;
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  cursor: help;
  transition:
    background-color 120ms ease,
    box-shadow 120ms ease;
}

.mc-concept:hover,
.mc-concept:focus-visible,
.mc-concept[aria-expanded="true"] {
  background: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 12%, transparent);
  box-shadow: 0 0 0 0.12rem color-mix(in srgb, var(--global-theme-color, #2a7ae2) 20%, transparent);
  outline: none;
}

.mc-notation {
  padding-inline: 0.08rem;
}

.mc-concept-tooltip {
  --mc-concept-border: rgba(0, 0, 0, 0.2);
  position: fixed;
  z-index: 2200;
  width: min(23rem, calc(100vw - 1.5rem));
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--mc-concept-border);
  border-radius: 0.65rem;
  background: var(--global-bg-color, #fff);
  color: var(--global-text-color, #1f2933);
  box-shadow:
    0 0.75rem 2rem rgba(0, 0, 0, 0.16),
    0 0.12rem 0.35rem rgba(0, 0, 0, 0.12);
  font-size: 0.9rem;
  line-height: 1.45;
}

.mc-concept-tooltip::before {
  position: absolute;
  left: 50%;
  width: 0.7rem;
  height: 0.7rem;
  border: solid var(--mc-concept-border);
  background: var(--global-bg-color, #fff);
  content: "";
  transform: translateX(-50%) rotate(45deg);
}

.mc-concept-tooltip[data-placement="below"]::before {
  top: -0.42rem;
  border-width: 1px 0 0 1px;
}

.mc-concept-tooltip[data-placement="above"]::before {
  bottom: -0.42rem;
  border-width: 0 1px 1px 0;
}

.mc-concept-tooltip-title {
  margin-bottom: 0.38rem;
  font-size: 1rem;
  font-weight: 700;
}

.mc-concept-tooltip p {
  margin: 0.5rem 0 0.65rem;
}

.mc-concept-tooltip-notation {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.35rem 0.48rem;
  border-radius: 0.38rem;
  background: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 8%, transparent);
}

.mc-concept-tooltip-label,
.mc-concept-notation-label {
  color: var(--global-text-color-light, #59636e);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.mc-concept-tooltip code,
.mc-concept-card code {
  overflow-wrap: anywhere;
  background: transparent;
  color: inherit;
  font-size: 0.88em;
}

.mc-concept-tooltip a {
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .mc-concept-tooltip {
    --mc-concept-border: rgba(255, 255, 255, 0.22);
    box-shadow:
      0 0.75rem 2rem rgba(0, 0, 0, 0.45),
      0 0.12rem 0.35rem rgba(0, 0, 0, 0.35);
  }
}

/* A compact second context beside each week's main teaching example. */
.mc-context {
  margin: 1rem 0 1.25rem;
  padding: 0.8rem 1rem 0.8rem 1.1rem;
  border: 1px solid color-mix(in srgb, var(--global-theme-color, #2a7ae2) 28%, transparent);
  border-left: 0.28rem solid var(--global-theme-color, #2a7ae2);
  border-radius: 0.45rem;
  background: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 6%, transparent);
}

.mc-context > :last-child {
  margin-bottom: 0;
}

/* Key Concepts page. */
.mc-concept-index {
  --mc-index-border: rgba(0, 0, 0, 0.14);
  --mc-index-surface: rgba(0, 0, 0, 0.025);
}

.mc-concept-intro {
  max-width: 48rem;
}

.mc-concept-source-note {
  max-width: 48rem;
  margin-top: -0.25rem;
  padding-left: 0.8rem;
  border-left: 0.2rem solid color-mix(in srgb, var(--global-theme-color, #2a7ae2) 55%, transparent);
  color: var(--global-text-color-light, #59636e);
  font-size: 0.9rem;
}

.mc-concept-controls {
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) auto;
  gap: 0.75rem 1rem;
  align-items: end;
  margin: 1.35rem 0 1rem;
}

.mc-concept-search-label {
  display: grid;
  gap: 0.32rem;
  margin: 0;
  font-size: 0.86rem;
  font-weight: 700;
}

.mc-concept-search {
  width: 100%;
  padding: 0.62rem 0.75rem;
  border: 1px solid var(--mc-index-border);
  border-radius: 0.5rem;
  background: var(--global-bg-color, #fff);
  color: inherit;
  font: inherit;
}

.mc-concept-search:focus {
  border-color: var(--global-theme-color, #2a7ae2);
  box-shadow: 0 0 0 0.16rem color-mix(in srgb, var(--global-theme-color, #2a7ae2) 18%, transparent);
  outline: none;
}

.mc-concept-results {
  padding-bottom: 0.62rem;
  color: var(--global-text-color-light, #59636e);
  font-size: 0.86rem;
  white-space: nowrap;
}

.mc-concept-tabs {
  display: inline-flex;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  padding: 0.22rem;
  border: 1px solid var(--mc-index-border);
  border-radius: 0.58rem;
  background: var(--mc-index-surface);
}

.mc-concept-tab {
  padding: 0.52rem 0.8rem;
  border: 0;
  border-radius: 0.4rem;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.mc-concept-tab[aria-selected="true"] {
  background: var(--global-theme-color, #2a7ae2);
  color: #fff;
}

.mc-concept-week-group {
  margin: 0 0 2rem;
  scroll-margin-top: 5rem;
}

.mc-concept-week-heading {
  display: flex;
  gap: 0.65rem;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.mc-concept-week-heading h2 {
  margin: 0;
}

.mc-concept-week-heading a {
  font-size: 0.88rem;
  font-weight: 600;
}

.mc-concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 0.75rem;
}

.mc-concept-card {
  position: relative;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--mc-index-border);
  border-radius: 0.55rem;
  background: var(--mc-index-surface);
  scroll-margin-top: 7rem;
}

.mc-concept-card h3 {
  margin: 0 0 0.38rem;
  padding-right: 2rem;
  font-size: 1rem;
}

.mc-concept-card p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.5;
}

.mc-concept-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.75rem;
  align-items: center;
  margin-top: 0.65rem;
  font-size: 0.82rem;
}

.mc-concept-card-notation {
  display: flex;
  gap: 0.35rem;
  align-items: baseline;
}

.mc-concept-letter {
  position: absolute;
  top: 0.7rem;
  right: 0.75rem;
  color: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 65%, transparent);
  font-size: 1.05rem;
  font-weight: 800;
}

/* The "Details" affordance on each card, and the pop-out it opens. */
.mc-concept-detail-open {
  overflow: hidden;
}

.mc-concept-detail-trigger {
  padding: 0.28rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--global-theme-color, #2a7ae2) 35%, transparent);
  border-radius: 0.35rem;
  background: transparent;
  color: var(--global-theme-color, #2a7ae2);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 650;
  cursor: pointer;
}

.mc-concept-detail-trigger:hover,
.mc-concept-detail-trigger:focus-visible {
  background: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 12%, transparent);
  outline: none;
}

.mc-concept-detail {
  width: min(46rem, calc(100vw - 2rem));
  max-height: min(85vh, 52rem);
  padding: 0;
  border: 1px solid rgba(0, 0, 0, 0.16);
  border-radius: 0.8rem;
  background: var(--global-bg-color, #fff);
  color: var(--global-text-color, #1f2933);
  box-shadow: 0 1.4rem 3rem rgba(0, 0, 0, 0.28);
}

.mc-concept-detail::backdrop {
  background: rgba(15, 23, 32, 0.55);
}

.mc-concept-detail-close {
  position: sticky;
  z-index: 1;
  top: 0.55rem;
  float: right;
  width: 2rem;
  height: 2rem;
  margin: 0.55rem 0.7rem 0 0;
  border: 1px solid var(--mc-index-border, rgba(0, 0, 0, 0.14));
  border-radius: 50%;
  background: var(--global-bg-color, #fff);
  color: inherit;
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
}

.mc-concept-detail-close:hover,
.mc-concept-detail-close:focus-visible {
  border-color: var(--global-theme-color, #2a7ae2);
  outline: none;
}

.mc-concept-detail-body {
  padding: 1.5rem 1.7rem 1.7rem;
}

.mc-concept-detail-body h2 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

.mc-concept-detail-body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.mc-concept-detail-body p {
  margin: 0 0 0.85rem;
  line-height: 1.62;
}

.mc-concept-detail-body > p:last-child {
  margin-bottom: 0;
}

.mc-concept-detail-eyebrow {
  margin-bottom: 0.35rem;
  color: var(--global-text-color-light, #59636e);
  font-size: 0.84rem;
  font-weight: 650;
}

.mc-concept-detail-definition {
  padding-left: 0.8rem;
  border-left: 0.2rem solid color-mix(in srgb, var(--global-theme-color, #2a7ae2) 55%, transparent);
  font-size: 1.02rem;
}

.mc-concept-detail-notation {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  margin-bottom: 1rem;
  padding: 0.4rem 0.55rem;
  border-radius: 0.4rem;
  background: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 8%, transparent);
}

.mc-concept-detail-example {
  margin: 1.25rem 0 1.1rem;
  padding: 1rem 1.15rem;
  border: 1px solid color-mix(in srgb, var(--global-theme-color, #2a7ae2) 28%, transparent);
  border-radius: 0.55rem;
  background: color-mix(in srgb, var(--global-theme-color, #2a7ae2) 6%, transparent);
}

/* A widget from the week-page animation engine, rendered inside the pop-out. */
.mc-concept-detail-figure {
  margin: 1rem 0 0;
}

.mc-concept-detail-figure .mc-anim {
  margin: 0;
}

.mc-concept-detail-figure .mc-anim-svg {
  width: 100%;
  height: auto;
}

.mc-concept-detail-figure figcaption {
  margin-top: 0.5rem;
  color: var(--global-text-color-light, #59636e);
  font-size: 0.84rem;
  line-height: 1.45;
}

/* A second worked case, where a government or nonprofit setting shows what the first cannot. */
.mc-concept-detail-example + .mc-concept-detail-example {
  margin-top: 0.9rem;
  border-color: rgba(0, 0, 0, 0.14);
  background: rgba(0, 0, 0, 0.03);
}

.mc-concept-detail-example > p:last-child {
  margin-bottom: 0;
}

.mc-concept-detail-label {
  margin-bottom: 0.3rem !important;
  color: var(--global-text-color-light, #59636e);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.mc-concept-detail-reading {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.5rem;
  align-items: baseline;
  margin: 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--mc-index-border, rgba(0, 0, 0, 0.14));
  color: var(--global-text-color-light, #59636e);
  font-size: 0.86rem;
}

@media (prefers-color-scheme: dark) {
  .mc-concept-detail-example + .mc-concept-detail-example {
    border-color: rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.05);
  }

  .mc-concept-detail {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 1.4rem 3rem rgba(0, 0, 0, 0.6);
  }

  .mc-concept-detail-close {
    border-color: rgba(255, 255, 255, 0.22);
  }

  .mc-concept-detail-reading {
    border-top-color: rgba(255, 255, 255, 0.16);
  }
}

@media (max-width: 600px) {
  .mc-concept-detail-body {
    padding: 1.15rem 1.15rem 1.4rem;
  }
}

.mc-concept-target {
  border-color: var(--global-theme-color, #2a7ae2);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--global-theme-color, #2a7ae2) 18%, transparent);
}

@media (prefers-color-scheme: dark) {
  .mc-concept-index {
    --mc-index-border: rgba(255, 255, 255, 0.16);
    --mc-index-surface: rgba(255, 255, 255, 0.035);
  }
}

@media (max-width: 600px) {
  .mc-concept-controls {
    grid-template-columns: 1fr;
  }

  .mc-concept-results {
    padding: 0;
  }

  .mc-concept-tabs {
    display: flex;
  }

  .mc-concept-tab {
    flex: 1 1 50%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mc-concept {
    transition: none;
  }
}

/* ---- Overflow guards for week-page content ------------------------------------------------------------
   The primary fix for a too-wide equation is to SPLIT IT AT SOURCE into aligned lines, which is what the
   week pages do; a scrollbar on every formula reads as a defect rather than a feature. These rules are only
   the last resort for a phone-width screen, where even a well-split equation can be wider than the column.
   Inline math is deliberately left alone: forcing it to inline-block changes baselines and stops it breaking
   with the sentence, which was worse than the problem it solved. */
.post article mjx-container[display="true"] {
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
}
.post article mjx-container[display="true"]::-webkit-scrollbar {
  height: 5px;
}
.post article table {
  display: block;
  overflow-x: auto;
  max-width: 100%;
}
.post article pre {
  overflow-x: auto;
  max-width: 100%;
}