.materials-view-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0 22px;
  border: 1px solid rgba(74, 47, 186, 0.14);
  border-radius: 24px;
  padding: 10px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(36, 16, 111, 0.07);
}

.materials-view-tab {
  display: flex;
  gap: 13px;
  align-items: center;
  min-height: 74px;
  border: 2px solid transparent;
  border-radius: 18px;
  padding: 12px 15px;
  color: var(--text);
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.materials-view-tab:hover {
  border-color: rgba(106, 54, 216, 0.24);
  transform: translateY(-1px);
}

.materials-view-tab.is-active {
  border-color: rgba(106, 54, 216, 0.34);
  background: #f3efff;
  box-shadow: 0 8px 18px rgba(36, 16, 111, 0.08);
}

.materials-view-tab-icon {
  display: grid;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 16px;
  background: var(--brand-yellow);
  color: var(--brand-navy);
}

.materials-view-tab:nth-child(2) .materials-view-tab-icon {
  background: var(--accent-green);
}

.materials-view-tab-icon .ui-icon {
  width: 23px;
  height: 23px;
}

.materials-view-tab strong,
.materials-view-tab small {
  display: block;
}

.materials-view-tab strong {
  font-size: 1rem;
  font-weight: 1000;
}

.materials-view-tab small {
  margin-top: 3px;
  color: var(--muted);
  font-weight: 760;
}

.conversation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.conversation-card {
  display: grid;
  overflow: hidden;
  border: 1px solid rgba(74, 47, 186, 0.16);
  border-radius: 24px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(36, 16, 111, 0.08);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.conversation-card:hover {
  border-color: rgba(106, 54, 216, 0.44);
  box-shadow: 0 16px 36px rgba(36, 16, 111, 0.13);
  transform: translateY(-4px);
}

.conversation-card:focus-visible,
.materials-view-tab:focus-visible,
.conversation-image-button:focus-visible,
.conversation-sibling-link:focus-visible {
  outline: 3px solid rgba(24, 184, 216, 0.32);
  outline-offset: 3px;
}

.conversation-card-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #eeeaf9;
}

.conversation-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}

.conversation-card:hover .conversation-card-image img {
  transform: scale(1.025);
}

.conversation-number,
.conversation-media-badge {
  position: absolute;
  top: 12px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
  min-height: 30px;
  border-radius: 999px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--brand-navy);
  font-size: 0.74rem;
  font-weight: 1000;
  box-shadow: 0 6px 14px rgba(36, 16, 111, 0.12);
}

.conversation-number {
  left: 12px;
}

.conversation-media-badge {
  right: 12px;
}

.conversation-media-badge .ui-icon {
  width: 15px;
  height: 15px;
}

.conversation-card-body {
  display: grid;
  gap: 8px;
  padding: 18px;
}

.conversation-card-body h3,
.conversation-card-body p {
  margin: 0;
}

.conversation-card-body h3 {
  font-size: clamp(1.18rem, 2vw, 1.45rem);
  line-height: 1.08;
}

.conversation-block-label {
  color: #5d42b2;
  font-size: 0.74rem;
  font-weight: 1000;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.conversation-prompt {
  min-height: 44px;
  color: var(--muted);
  font-weight: 800;
}

.conversation-card-action {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  color: var(--brand-navy);
  font-weight: 1000;
}

.conversation-card-action .ui-icon {
  width: 20px;
  height: 20px;
}

.conversation-workspace-page {
  display: grid;
  gap: 18px;
}

.conversation-workspace-header,
.conversation-stage,
.conversation-teacher-guide {
  border: 1px solid rgba(74, 47, 186, 0.16);
  background: #fff;
  box-shadow: 0 12px 30px rgba(36, 16, 111, 0.08);
}

.conversation-workspace-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: end;
  border-radius: 24px;
  padding: clamp(18px, 2.4vw, 26px);
}

.conversation-workspace-heading h1,
.conversation-workspace-heading p {
  margin-bottom: 0;
}

.conversation-workspace-heading h1 {
  margin-top: 6px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
}

.conversation-workspace-heading > p:last-child {
  max-width: 780px;
  color: var(--muted);
  font-weight: 780;
}

.conversation-workspace-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.conversation-sibling-link {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  min-height: 42px;
  border: 1px solid rgba(63, 140, 255, 0.16);
  border-radius: 999px;
  padding: 0 14px;
  background: #fff;
  color: var(--text);
  font-weight: 1000;
  text-decoration: none;
}

.conversation-sibling-link .ui-icon {
  width: 17px;
  height: 17px;
}

.conversation-workspace-meta {
  display: grid;
  gap: 12px;
  justify-items: end;
}

.conversation-workspace-meta > span {
  border-radius: 999px;
  padding: 8px 12px;
  background: #f3efff;
  color: var(--brand-navy);
  font-size: 0.82rem;
  font-weight: 1000;
}

.conversation-workspace-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(310px, 0.75fr);
  gap: 18px;
  align-items: start;
}

.conversation-stage,
.conversation-teacher-guide {
  border-radius: 24px;
  padding: clamp(16px, 2vw, 22px);
}

.conversation-stage-heading {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.conversation-stage-heading h2,
.conversation-stage-heading p {
  margin: 0;
}

.conversation-stage-heading > span {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 7px 11px;
  background: var(--brand-yellow-soft);
  color: #6f5500;
  font-size: 0.78rem;
  font-weight: 1000;
}

.conversation-image-button {
  display: block;
  width: 100%;
  overflow: hidden;
  cursor: zoom-in;
  border: 1px solid rgba(74, 47, 186, 0.16);
  border-radius: 18px;
  padding: 0;
  background: #eeeaf9;
}

.conversation-image-button img {
  display: block;
  width: 100%;
  height: auto;
}

.conversation-image-button img:fullscreen {
  width: 100vw;
  height: 100vh;
  object-fit: contain;
  background: #160c3c;
}

.conversation-audio-panel {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) minmax(240px, 0.9fr);
  gap: 12px;
  align-items: center;
  margin-top: 15px;
  border: 1px solid rgba(106, 54, 216, 0.16);
  border-radius: 18px;
  padding: 13px;
  background: #f8f6ff;
}

.conversation-audio-icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 15px;
  background: var(--accent-green);
  color: var(--brand-navy);
}

.conversation-audio-icon .ui-icon {
  width: 23px;
  height: 23px;
}

.conversation-audio-panel strong,
.conversation-audio-panel span {
  display: block;
}

.conversation-audio-panel div > span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 720;
}

.conversation-audio-panel audio {
  width: 100%;
  min-width: 0;
}

.conversation-guide-heading h2,
.conversation-guide-heading p {
  margin-bottom: 0;
}

.conversation-guide-heading > p:last-child {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 740;
}

.conversation-steps {
  display: grid;
  gap: 10px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
}

.conversation-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  border: 1px solid rgba(74, 47, 186, 0.12);
  border-radius: 16px;
  padding: 12px;
  background: #fbfaff;
}

.conversation-step-number {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 12px;
  background: var(--brand-yellow);
  color: var(--brand-navy);
  font-weight: 1000;
}

.conversation-steps li:nth-child(even) .conversation-step-number {
  background: var(--accent-green);
}

.conversation-steps strong,
.conversation-steps p {
  margin: 0;
}

.conversation-steps p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 720;
  line-height: 1.38;
}

.conversation-teacher-tip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border-radius: 16px;
  padding: 13px;
  background: #fff8cf;
  color: var(--brand-navy);
}

.conversation-teacher-tip .ui-icon {
  width: 22px;
  height: 22px;
}

.conversation-teacher-tip p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.38;
}

@media (max-width: 1180px) {
  .conversation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .conversation-workspace-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .materials-view-tabs,
  .conversation-grid,
  .conversation-workspace-header {
    grid-template-columns: 1fr;
  }

  .materials-view-tab {
    min-height: 66px;
  }

  .conversation-workspace-meta {
    justify-items: start;
  }

  .conversation-workspace-meta .button {
    width: 100%;
  }

  .conversation-stage-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .conversation-audio-panel {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .conversation-audio-panel audio {
    grid-column: 1 / -1;
  }
}

@media (max-width: 460px) {
  .conversation-media-badge {
    display: none;
  }

  .conversation-workspace-nav .back-link,
  .conversation-sibling-link {
    min-height: 38px;
    padding-inline: 11px;
    font-size: 0.82rem;
  }
}