/*
 * Lumen x Zensical Composition
 * Material theme adaptation for concise launch pages and readable docs.
 */

:root {
  --lumen-page-gutter: clamp(1rem, 3vw, 2rem);
  --lumen-reading-width: 66ch;
  --lumen-shell-width: min(100% - (var(--lumen-page-gutter) * 2), var(--container-max));
  --lumen-rule: 1px solid var(--stone);
  --lumen-hairline: color-mix(in srgb, var(--stone) 78%, transparent);

  --aether-page-gutter: var(--lumen-page-gutter);
  --aether-reading-width: var(--lumen-reading-width);
  --aether-shell-width: var(--lumen-shell-width);
  --aether-rule: var(--lumen-rule);
  --aether-hairline: var(--lumen-hairline);
}

html {
  scroll-behavior: smooth;
}

body {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface-muted) 70%, transparent), transparent 26rem),
    linear-gradient(90deg, color-mix(in srgb, var(--stone) 32%, transparent) 0 1px, transparent 1px 100%),
    var(--canvas);
  background-size: auto, 32px 32px, auto;
}

[data-md-color-scheme="slate"] body {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface-muted) 58%, transparent), transparent 28rem),
    linear-gradient(90deg, color-mix(in srgb, var(--stone) 26%, transparent) 0 1px, transparent 1px 100%),
    var(--canvas);
  background-size: auto, 36px 36px, auto;
}

.md-grid {
  max-width: var(--container-max);
}

.md-main__inner {
  width: var(--lumen-shell-width);
  margin-inline: auto;
}

.md-content__inner {
  max-width: var(--lumen-reading-width);
  margin-inline: auto;
  padding-block: var(--space-6) var(--space-8);
}

.landing-page .md-content__inner {
  max-width: none;
  padding-block: 0 var(--space-6);
}

.md-header,
.md-tabs {
  color: var(--ink);
  background: var(--surface-floating);
  border-bottom: var(--lumen-rule);
  box-shadow: none;
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
  backdrop-filter: blur(18px) saturate(1.08);
}

.md-header__inner {
  min-height: 4rem;
}

.md-header__title {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  letter-spacing: 0;
  text-transform: uppercase;
}

.md-tabs__list {
  gap: 0;
}

.md-tabs__item {
  height: 2.45rem;
}

.md-tabs__link {
  position: relative;
  height: 2.45rem;
  margin-top: 0;
  padding-inline: 0.8rem;
  color: var(--slate);
  font-size: var(--text-caption);
  font-weight: 650;
  letter-spacing: 0;
  opacity: 1;
  text-transform: uppercase;
}

.md-tabs__link::after {
  content: "";
  position: absolute;
  inset-inline: 0.8rem;
  bottom: 0;
  height: 2px;
  background: transparent;
}

.md-tabs__link:hover,
.md-tabs__link--active {
  color: var(--ink);
}

.md-tabs__link:hover::after,
.md-tabs__link--active::after {
  background: var(--accent);
}

body.canvas-page .md-tabs__link[href*="canvas"] {
  color: var(--accent);
}

body.canvas-page .md-tabs__link[href*="canvas"]::after {
  background: var(--accent);
}

.md-typeset > h1:first-child {
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-5);
  border-bottom: var(--lumen-rule);
}

.md-typeset h2 {
  padding-top: var(--space-3);
}

.md-typeset h2::before {
  content: "";
  display: block;
  width: 2.25rem;
  height: 2px;
  margin-bottom: var(--space-3);
  background: var(--accent);
}

.landing-page .md-typeset h2::before,
.landing-page .tx-hero h1::before {
  display: none;
}

.md-typeset hr {
  margin: var(--space-6) 0;
  border: 0;
  border-top: var(--lumen-rule);
}

.md-typeset .grid.cards {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}

.md-typeset .grid.cards > li,
.md-typeset .grid.cards > ul > li {
  position: relative;
  min-height: 13rem;
  overflow: hidden;
}

.md-typeset .grid.cards > li::before,
.md-typeset .grid.cards > ul > li::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--dur-swift) var(--ease-swift);
}

.md-typeset .grid.cards > li:hover::before,
.md-typeset .grid.cards > ul > li:hover::before,
.md-typeset .grid.cards > li:focus-within::before,
.md-typeset .grid.cards > ul > li:focus-within::before {
  opacity: 1;
}

.md-typeset .grid.cards a {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0;
  text-transform: uppercase;
}

.md-nav__title {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0;
  text-transform: uppercase;
}

.md-sidebar--secondary .md-nav__link--active {
  box-shadow: inset 2px 0 0 var(--accent);
}

.md-search__input,
.md-search__form {
  color: var(--ink);
}

.md-search__form {
  background: var(--surface-raised);
  border: var(--lumen-rule);
  border-radius: var(--radius-soft);
}

.md-footer {
  color: var(--ink);
  background:
    linear-gradient(180deg, transparent, color-mix(in srgb, var(--surface-muted) 72%, transparent)),
    var(--surface-raised);
  border-top: var(--lumen-rule);
}

.mlad-status {
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  padding: 0.15rem 0.55rem;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;
  border: var(--lumen-rule);
  border-radius: var(--radius-pill);
}

.mlad-status--active {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--stone));
}

.mlad-status--experiment {
  border-style: dashed;
}

.aether-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(16rem, 0.95fr);
  gap: var(--space-5);
  align-items: stretch;
}

.aether-showcase__panel {
  position: relative;
  min-height: 18rem;
  padding: var(--space-5);
  overflow: hidden;
  background: var(--surface-raised);
  border: var(--lumen-rule);
  border-radius: var(--radius-soft);
  box-shadow: var(--shadow-subtle);
}

.aether-showcase__panel::after {
  content: "";
  position: absolute;
  right: -4rem;
  bottom: -4rem;
  width: 13rem;
  height: 13rem;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent);
  border-radius: 999px;
}

.aether-showcase__kicker,
.aether-kicker {
  margin: 0 0 var(--space-3);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0;
  text-transform: uppercase;
}

.aether-showcase__list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.aether-showcase__list li {
  padding-bottom: var(--space-3);
  border-bottom: var(--lumen-rule);
}

.aether-showcase__list strong {
  display: block;
  color: var(--ink);
}

.aether-showcase__list span {
  display: block;
  color: var(--slate);
  font-size: var(--text-caption);
}

@media screen and (max-width: 60rem) {
  .md-main__inner {
    width: 100%;
  }

  .md-content__inner {
    padding-inline: var(--space-4);
  }

  .aether-showcase {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 37.5rem) {
  body {
    background-size: auto, 40px 40px, auto;
  }

  .md-content__inner {
    padding-inline: var(--space-3);
  }

  .md-typeset .grid.cards > li,
  .md-typeset .grid.cards > ul > li,
  .aether-showcase__panel {
    min-height: auto;
    padding: var(--space-4);
  }
}