/* ==========================================================================
   NASA OPERA for GeoLibre - theme extensions
   Built on Zensical's own custom properties so both color schemes follow.
   ========================================================================== */

[data-md-color-scheme="default"] {
  --md-primary-fg-color: #0a7692;
  --md-primary-fg-color--light: #3a9db5;
  --md-primary-fg-color--dark: #075a70;
  --md-accent-fg-color: #0e8ba9;
  --md-accent-fg-color--transparent: rgba(14, 139, 169, 0.1);

  --opera-panel: #f4f7f8;
  --opera-line: #d0d9db;
  --opera-line-strong: #b4c1c4;
  --opera-faint: #7c919b;
  --opera-wash: #dbebef;
}

[data-md-color-scheme="slate"] {
  --md-hue: 205;
  --md-primary-fg-color: #0b2b36;
  --md-primary-fg-color--light: #17495a;
  --md-primary-fg-color--dark: #061c24;
  --md-accent-fg-color: #4ec4e6;
  --md-accent-fg-color--transparent: rgba(78, 196, 230, 0.1);

  --opera-panel: #142a35;
  --opera-line: #1d3542;
  --opera-line-strong: #2b4a5a;
  --opera-faint: #6d8592;
  --opera-wash: #0f2f3c;
}

/* A little more room than the default 61rem, so the demo stills read. */
.md-grid {
  max-width: 70rem;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  font-variation-settings: "wdth" 112;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.md-typeset .hero {
  position: relative;
  overflow: hidden;
  margin: -1.2rem 0 2.4rem;
  padding: 2.4rem 1.6rem 2rem;
  background: var(--opera-panel);
  border: 1px solid var(--opera-line);
}

.md-typeset .hero #opera-mosaic {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  -webkit-mask-image: linear-gradient(
    100deg,
    transparent 0%,
    transparent 42%,
    rgba(0, 0, 0, 0.55) 68%,
    rgba(0, 0, 0, 0.95) 100%
  );
  mask-image: linear-gradient(
    100deg,
    transparent 0%,
    transparent 42%,
    rgba(0, 0, 0, 0.55) 68%,
    rgba(0, 0, 0, 0.95) 100%
  );
}

.md-typeset .hero-inner {
  position: relative;
}

.md-typeset .hero h1 {
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -0.028em;
  margin: 0.4rem 0 0;
  max-width: 15ch;
  color: var(--md-default-fg-color);
}

.md-typeset .eyebrow {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--opera-faint);
  margin: 0;
}

.md-typeset .hero-lede {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
  max-width: 52ch;
  margin: 0.9rem 0 1.4rem;
}

.md-typeset .hero .md-button {
  margin: 0 0.4rem 0.4rem 0;
}

.md-typeset .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 1.4rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--opera-line);
  max-width: 44rem;
}

.md-typeset .chip {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--md-default-fg-color--light);
  background: var(--md-default-bg-color);
  border: 1px solid var(--opera-line);
  padding: 0.2rem 0.4rem;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Video demos
   -------------------------------------------------------------------------- */

.md-typeset .demos {
  display: grid;
  gap: 2.4rem;
  margin: 1.6rem 0 2.4rem;
}

.md-typeset .demo {
  display: grid;
  gap: 1rem;
}

@media screen and (min-width: 60em) {
  .md-typeset .demo {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 1.6rem;
    align-items: start;
  }
}

.md-typeset .frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--opera-panel);
  border: 1px solid var(--opera-line-strong);
}

.md-typeset .frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.md-typeset .facade {
  position: absolute;
  inset: 0;
  display: block;
  overflow: hidden;
  background: var(--opera-panel);
}

.md-typeset .facade img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.md-typeset .facade::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(6, 16, 22, 0) 45%,
    rgba(6, 16, 22, 0.6) 100%
  );
}

.md-typeset .facade .play {
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 3.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  background: var(--md-accent-fg-color);
  transition:
    transform 0.18s ease,
    background 0.18s ease;
}

.md-typeset .facade .play svg {
  width: 0.85rem;
  height: 0.85rem;
  display: block;
  fill: var(--md-default-bg-color);
}

.md-typeset .facade:hover .play,
.md-typeset .facade:focus-visible .play {
  background: var(--md-primary-fg-color);
  transform: translate(-50%, -50%) scale(1.06);
}

.md-typeset .facade .cue {
  position: absolute;
  z-index: 1;
  left: 0.6rem;
  bottom: 0.5rem;
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #e9f4f7;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
}

.md-typeset .demo-meta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.md-typeset .demo-meta h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.25;
}

.md-typeset .demo-meta p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
}

.md-typeset .stamp {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.5rem;
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.6rem !important;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--opera-faint) !important;
}

.md-typeset .stamp span::after {
  content: " \00b7";
  color: var(--opera-line-strong);
}

.md-typeset .stamp span:last-child::after {
  content: "";
}

.md-typeset .prompt {
  border-left: 2px solid var(--md-accent-fg-color);
  background: var(--opera-wash);
  padding: 0.6rem 0.8rem;
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.65rem;
  line-height: 1.6;
  color: var(--md-default-fg-color);
  overflow-x: auto;
}

.md-typeset .prompt em {
  display: block;
  font-style: normal;
  font-family: var(--md-text-font-family, sans-serif);
  font-size: 0.55rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--md-primary-fg-color);
  margin-bottom: 0.3rem;
}

[data-md-color-scheme="slate"] .md-typeset .prompt em {
  color: var(--md-accent-fg-color);
}

/* --------------------------------------------------------------------------
   Data path
   -------------------------------------------------------------------------- */

.md-typeset .path {
  display: grid;
  gap: 0.7rem;
  margin: 1.2rem 0 1.6rem;
}

@media screen and (min-width: 45em) {
  .md-typeset .path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.md-typeset .stage {
  border: 1px solid var(--opera-line);
  background: var(--opera-panel);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.md-typeset .stage .num {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--opera-faint);
}

.md-typeset .stage strong {
  font-size: 0.85rem;
  font-weight: 600;
}

.md-typeset .stage p {
  margin: 0;
  font-size: 0.74rem;
  line-height: 1.55;
  color: var(--md-default-fg-color--light);
}

.md-typeset .stage .url {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.6rem;
  line-height: 1.5;
  color: var(--opera-faint);
  overflow-x: auto;
  white-space: nowrap;
  padding-top: 0.4rem;
  margin-top: auto;
  border-top: 1px dashed var(--opera-line-strong);
}

/* --------------------------------------------------------------------------
   Inline label used as definition-list terms
   -------------------------------------------------------------------------- */

.md-typeset code.tag {
  background: transparent;
  padding: 0;
  color: var(--md-default-fg-color);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .md-typeset .facade .play {
    transition: none;
  }
  .md-typeset .facade:hover .play,
  .md-typeset .facade:focus-visible .play {
    transform: translate(-50%, -50%);
  }
}

/* --------------------------------------------------------------------------
   Primary button: the slate scheme's primary color is the dark header navy,
   which would leave the button unreadable, so use the accent there instead.
   -------------------------------------------------------------------------- */

[data-md-color-scheme="slate"] .md-typeset .md-button--primary {
  background-color: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
  color: #062029;
}

[data-md-color-scheme="slate"] .md-typeset .md-button--primary:hover,
[data-md-color-scheme="slate"] .md-typeset .md-button--primary:focus {
  background-color: var(--md-accent-fg-color--light, #7dd6ee);
  border-color: var(--md-accent-fg-color--light, #7dd6ee);
  color: #062029;
}