.audio-lessons .section-heading {
  display: flex;
  gap: 0.75rem 2rem;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.audio-lessons .section-heading p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
}

/* Audio lessons are a directory; playback stays on the playlist page. */
.audio-lessons__panel {
  display: grid;
  grid-template-columns: minmax(0, 0.31fr) minmax(0, 0.69fr);
  border: 1px solid var(--line);
  border-radius: var(--radius-large);
  background: var(--card);
}

.audio-lessons__intro {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-rows: minmax(min-content, 1fr) auto minmax(min-content, 1fr);
  gap: 2rem;
  min-width: 0;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-right: 1px solid var(--line);
  border-radius: var(--radius-large) 0 0 var(--radius-large);
  background: radial-gradient(
    circle farthest-corner at var(--audio-intro-gradient-origin, center),
    color-mix(in srgb, var(--paper-light) 94%, white) 0%,
    var(--theme-green-soft) 65%,
    color-mix(in srgb, var(--theme-green-soft) 90%, black) 100%
  );
}

.audio-lessons__eyebrow {
  display: flex;
  align-self: start;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0;
  color: var(--theme-green);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.035em;
}

/* Optional heading that sits in the intro panel in place of a section heading. */
.audio-lessons__heading {
  display: grid;
  align-self: start;
  gap: 0.75rem;
}

.audio-lessons__heading .audio-lessons__eyebrow {
  margin: 0;
  padding: 0;
}

.audio-lessons__title {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
  font-weight: 500;
  line-height: 1.3;
}

.audio-lessons__level {
  padding: 0.1rem 0.45rem;
  border: 1px solid currentColor;
  border-radius: 0.3rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0;
}

.audio-lessons__icon {
  display: block;
  justify-self: center;
  align-self: center;
  width: min(100%, 14rem);
  height: auto;
  aspect-ratio: 1;
  color: var(--theme-green);
  opacity: 0.15;
  pointer-events: none;
}

.audio-lessons__icon .headphones-icon__cushions {
  fill: color-mix(in srgb, currentColor 55%, var(--card));
}

.audio-lessons__footer {
  align-self: end;
}

.audio-lessons__summary {
  margin: 0 0 0.875rem;
  color: var(--theme-green);
  font-size: 0.75rem;
}

.audio-lessons__summary span {
  margin-inline: 0.3rem;
}

.audio-lessons__open {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--theme-green);
  border-radius: 0.5rem;
  color: var(--theme-on-accent);
  background: var(--theme-green);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
}

.audio-lessons__open span {
  font-size: 1.125rem;
}

.audio-lessons__menu {
  min-width: 0;
  padding: 0 clamp(1rem, 2.5vw, 2rem) 0.5rem;
}

.audio-lessons__menu-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-block: 1.25rem 0.75rem;
  border-bottom: 1px solid var(--line);
  color: var(--theme-muted);
  font-size: 0.75rem;
}

.audio-lessons__menu-heading p {
  margin: 0;
  color: var(--theme-green);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.audio-lessons__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.audio-lessons__list li + li {
  border-top: 1px solid var(--line);
}

.audio-lesson {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  margin-inline: -0.5rem;
  padding: 1rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--ink);
  text-decoration: none;
}

.audio-lesson__number {
  align-self: start;
  padding-top: 0.35rem;
  color: var(--theme-green);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.audio-lesson__body {
  min-width: 0;
}

.audio-lesson__title {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.audio-lesson__english {
  margin: 0.15rem 0 0;
  color: var(--theme-green);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.5;
}

.audio-lesson__description {
  margin: 0.3rem 0 0;
  color: var(--theme-muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.audio-lesson__end {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.audio-lesson__duration {
  color: var(--theme-muted);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.audio-lesson__arrow {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--theme-green);
  font-size: 1rem;
}

.audio-lesson:focus-visible {
  background: var(--theme-hover);
}

.audio-lesson:focus-visible .audio-lesson__arrow {
  color: var(--theme-on-accent);
  background: var(--theme-green);
  border-color: var(--theme-green);
}

@media (hover: hover) and (pointer: fine) {
  .audio-lesson:hover {
    background: var(--theme-hover);
  }

  .audio-lesson:hover .audio-lesson__arrow {
    color: var(--theme-on-accent);
    background: var(--theme-green);
    border-color: var(--theme-green);
  }

  .audio-lessons__open:hover {
    color: var(--theme-green);
    background: var(--card);
  }
}

@media (max-width: 56rem) {
  .audio-lessons__panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .audio-lessons__intro {
    --audio-intro-gradient-origin: bottom left;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto minmax(6rem, 1fr);
    gap: 0.75rem clamp(0.75rem, 2.5vw, 2rem);
    border-right: 0;
    border-bottom: 1px solid var(--line);
    border-radius: var(--radius-large) var(--radius-large) 0 0;
  }

  .audio-lessons__eyebrow,
  .audio-lessons__heading {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
  }

  .audio-lessons__icon {
    grid-column: 1;
    grid-row: 2;
    justify-self: start;
    align-self: end;
    width: min(100%, 6rem);
  }

  .audio-lessons__footer {
    grid-column: 2;
    grid-row: 1 / -1;
    align-self: end;
  }
}

@media (max-width: 36rem) {
  .audio-lessons__intro {
    --audio-intro-gradient-origin: top right;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 0 1rem;
    padding: 1.25rem;
  }

  .audio-lessons__icon {
    position: absolute;
    z-index: -1;
    grid-area: auto;
    top: 0.5rem;
    right: 0.5rem;
    width: min(100%, 4.5rem);
  }

  .audio-lessons__eyebrow,
  .audio-lessons__heading {
    grid-column: 1 / -1;
    align-self: start;
    margin-bottom: 1rem;
    padding-right: 3.75rem;
  }

  .audio-lessons__footer {
    grid-column: 1 / -1;
    grid-row: auto;
    margin-top: 1.25rem;
  }

  .audio-lessons__summary {
    margin-bottom: 0.65rem;
  }

  .audio-lesson {
    grid-template-columns: 1.25rem minmax(0, 1fr) 2rem;
    gap: 0.5rem;
  }

  .audio-lesson__title {
    font-size: 1.25rem;
  }

  .audio-lesson__end {
    flex-direction: column-reverse;
    gap: 0.5rem;
  }
}