/**
 * ThatCurriculum — Space Command theme (matches ThatVocab / ThatWriter)
 */
body.ttb-app-body .ttb-curriculum-shell {
  max-width: var(--ttb-layout-max);
  margin: 0 auto 1.5rem;
  min-height: calc(100vh - 4rem - var(--parent-banner-height, 0px) - 2rem);
  display: flex;
  flex-direction: column;
  border-radius: var(--ttb-radius-lg);
  border: 1px solid var(--ttb-border-strong);
  background: oklch(0.18 0.04 265 / 0.94);
  box-shadow: var(--ttb-shadow-lg);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

body.ttb-app-body .ttb-curriculum-shell #root {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

body.ttb-app-body .ttb-curriculum-page {
  flex: 1;
  min-height: 0;
  width: 100%;
  background: transparent;
  color: var(--ttb-ink);
  font-family: var(--ttb-font-body);
}

body.ttb-app-body .ttb-curriculum-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1.15rem;
  background: var(--ttb-curriculum-header);
  border-bottom: 1px solid var(--ttb-border-strong);
  position: relative;
  z-index: 30;
}

body.ttb-app-body .ttb-curriculum-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    oklch(0.66 0.16 285 / 0.45),
    oklch(0.78 0.16 200 / 0.4),
    transparent
  );
  pointer-events: none;
}

body.ttb-app-body .ttb-curriculum-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

body.ttb-app-body .ttb-curriculum-logo {
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
  border-radius: var(--ttb-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: oklch(0.22 0.05 265 / 0.5);
  border: 1px solid var(--ttb-border);
  overflow: hidden;
}

body.ttb-app-body .ttb-curriculum-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

body.ttb-app-body .ttb-curriculum-title {
  margin: 0;
  font-family: var(--ttb-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ttb-signal);
}

body.ttb-app-body .ttb-curriculum-subtitle {
  margin: 0.1rem 0 0;
  font-size: 0.72rem;
  color: var(--ttb-ink-muted);
}

body.ttb-app-body .ttb-curriculum-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  border-radius: var(--ttb-radius-sm);
  border: 1px solid var(--ttb-border);
  background: oklch(0.22 0.04 265 / 0.8);
  color: var(--ttb-ink-muted);
  transition: border-color var(--ttb-duration) var(--ttb-ease-out),
    color var(--ttb-duration) var(--ttb-ease-out);
}

body.ttb-app-body .ttb-curriculum-back:hover {
  border-color: var(--ttb-signal);
  color: var(--ttb-signal);
}

body.ttb-app-body .ttb-curriculum-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

body.ttb-app-body .ttb-curriculum-progress {
  display: none;
  align-items: center;
  gap: 0.65rem;
  padding: 0.35rem 0.65rem;
  border-radius: var(--ttb-radius-sm);
  border: 1px solid var(--ttb-border);
  background: oklch(0.2 0.04 265 / 0.75);
  color: var(--ttb-ink-muted);
  font-size: 0.65rem;
}

@media (min-width: 768px) {
  body.ttb-app-body .ttb-curriculum-progress {
    display: flex;
  }
}

body.ttb-app-body .ttb-curriculum-view-tabs {
  display: flex;
  gap: 0.2rem;
  padding: 0.2rem;
  border-radius: var(--ttb-radius-sm);
  border: 1px solid var(--ttb-border);
  background: oklch(0.16 0.04 265 / 0.85);
}

body.ttb-app-body .ttb-curriculum-view-tab {
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  border: none;
  background: transparent;
  font-family: var(--ttb-font-display);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ttb-ink-soft);
  cursor: pointer;
  transition: background var(--ttb-duration) var(--ttb-ease-out),
    color var(--ttb-duration) var(--ttb-ease-out);
}

body.ttb-app-body .ttb-curriculum-view-tab:hover {
  color: var(--ttb-ink);
  background: oklch(0.24 0.05 265);
}

body.ttb-app-body .ttb-curriculum-view-tab.is-active {
  background: oklch(0.28 0.06 200 / 0.25);
  color: var(--ttb-signal);
  box-shadow: 0 0 14px oklch(0.72 0.14 200 / 0.2);
}

body.ttb-app-body .ttb-curriculum-home {
  overflow-y: auto;
  background: transparent;
}

body.ttb-app-body .ttb-curriculum-home__inner {
  max-width: 56rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 2.5rem;
}

body.ttb-app-body .ttb-curriculum-home__headline {
  margin: 0 0 0.5rem;
  font-family: var(--ttb-font-display);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ttb-ink);
}

body.ttb-app-body .ttb-curriculum-home__headline em {
  font-style: normal;
  color: var(--ttb-signal);
}

body.ttb-app-body .ttb-curriculum-home__lead {
  margin: 0 auto 2rem;
  max-width: 40rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--ttb-ink-muted);
  text-align: center;
}

body.ttb-app-body .ttb-curriculum-year-tabs {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  margin-bottom: 2rem;
  border-radius: var(--ttb-radius-pill);
  border: 1px solid var(--ttb-border);
  background: oklch(0.16 0.04 265 / 0.9);
}

body.ttb-app-body .ttb-curriculum-year-tab {
  padding: 0.45rem 1.1rem;
  border-radius: var(--ttb-radius-pill);
  border: none;
  background: transparent;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ttb-ink-muted);
  cursor: pointer;
  transition: background var(--ttb-duration) var(--ttb-ease-out),
    color var(--ttb-duration) var(--ttb-ease-out);
}

body.ttb-app-body .ttb-curriculum-year-tab.is-active {
  background: oklch(0.32 0.1 200 / 0.55);
  color: var(--ttb-ink);
}

body.ttb-app-body .ttb-curriculum-module-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  body.ttb-app-body .ttb-curriculum-module-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  body.ttb-app-body .ttb-curriculum-module-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

body.ttb-app-body .ttb-curriculum-module-card {
  position: relative;
  display: flex;
  flex-direction: column;
  text-align: left;
  padding: 1.5rem;
  border-radius: var(--ttb-radius-lg);
  border: 1px solid var(--ttb-border);
  background: oklch(0.2 0.04 265 / 0.88);
  color: var(--ttb-ink);
  cursor: pointer;
  transition: border-color var(--ttb-duration) var(--ttb-ease-out),
    box-shadow var(--ttb-duration) var(--ttb-ease-out),
    transform var(--ttb-duration) var(--ttb-ease-out);
}

body.ttb-app-body .ttb-curriculum-module-card:hover {
  border-color: var(--ttb-signal);
  box-shadow: 0 0 24px oklch(0.72 0.14 200 / 0.15);
  transform: translateY(-2px);
}

body.ttb-app-body .ttb-curriculum-module-card__icon {
  width: 3rem;
  height: 3rem;
  margin-bottom: 1rem;
  border-radius: var(--ttb-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: oklch(0.28 0.06 200 / 0.25);
  color: var(--ttb-signal);
}

body.ttb-app-body .ttb-curriculum-module-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ttb-ink);
}

body.ttb-app-body .ttb-curriculum-module-card p {
  margin: 0;
  flex: 1;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--ttb-ink-muted);
}

body.ttb-app-body .ttb-curriculum-module-card__footer {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--ttb-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.65rem;
  color: var(--ttb-ink-soft);
}

body.ttb-app-body .ttb-curriculum-chat-rail {
  border-left: 1px solid var(--ttb-border-strong);
  background: oklch(0.16 0.04 265 / 0.92);
}

body.ttb-app-body .ttb-curriculum-legend {
  background: oklch(0.18 0.04 265 / 0.92) !important;
  border-color: var(--ttb-border) !important;
  color: var(--ttb-ink-muted);
}

body.ttb-app-body .ttb-curriculum-legend h3 {
  color: var(--ttb-ink-soft) !important;
}

body.ttb-app-body .ttb-curriculum-legend__item {
  border-color: var(--ttb-border) !important;
  background: oklch(0.2 0.04 265 / 0.6);
  color: var(--ttb-ink-muted);
}

body.ttb-app-body .ttb-curriculum-overview {
  background: transparent;
}

body.ttb-app-body .ttb-curriculum-overview__inner {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2.5rem;
}

body.ttb-app-body .ttb-curriculum-overview__title {
  margin: 0;
  font-family: var(--ttb-font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ttb-ink);
}

body.ttb-app-body .ttb-curriculum-overview__desc {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
  color: var(--ttb-ink-muted);
  line-height: 1.45;
}

body.ttb-app-body .ttb-curriculum-overview__intro {
  margin-bottom: 1.75rem;
}

body.ttb-app-body .ttb-curriculum-overview__strands {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

body.ttb-app-body .ttb-curriculum-overview__strand-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

body.ttb-app-body .ttb-curriculum-overview__strand-head h3 {
  margin: 0;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ttb-ink-soft);
}

body.ttb-app-body .ttb-curriculum-overview__strand-rule {
  flex: 1;
  height: 1px;
  background: var(--ttb-border);
}

body.ttb-app-body .ttb-curriculum-overview__strand-head span {
  font-size: 0.65rem;
  color: var(--ttb-ink-soft);
}

body.ttb-app-body .ttb-curriculum-overview__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

body.ttb-app-body .ttb-curriculum-overview__topic {
  padding: 0.45rem 0.85rem;
  border-radius: var(--ttb-radius-sm);
  border: 1px solid var(--ttb-border);
  background: oklch(0.2 0.04 265 / 0.75);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ttb-ink-muted);
  cursor: pointer;
  transition: border-color var(--ttb-duration) var(--ttb-ease-out),
    color var(--ttb-duration) var(--ttb-ease-out),
    background var(--ttb-duration) var(--ttb-ease-out);
}

body.ttb-app-body .ttb-curriculum-overview__topic:hover {
  border-color: var(--ttb-signal);
  background: oklch(0.28 0.06 200 / 0.25);
  color: var(--ttb-signal);
}

/* Legacy Tailwind indigo/purple inside React shell → Space Command signal (matches Vocab/ChatBox) */
body.ttb-app-body .ttb-curriculum-shell .text-indigo-400,
body.ttb-app-body .ttb-curriculum-shell .text-indigo-500,
body.ttb-app-body .ttb-curriculum-shell .text-indigo-600,
body.ttb-app-body .ttb-curriculum-shell .text-indigo-700,
body.ttb-app-body .ttb-curriculum-shell .text-indigo-800,
body.ttb-app-body .ttb-curriculum-shell .text-violet-600,
body.ttb-app-body .ttb-curriculum-shell .text-purple-500,
body.ttb-app-body .ttb-curriculum-shell .text-purple-600,
body.ttb-app-body .ttb-curriculum-shell .text-purple-700 {
  color: var(--ttb-signal) !important;
}

body.ttb-app-body .ttb-curriculum-shell .text-indigo-900 {
  color: var(--ttb-ink) !important;
}

body.ttb-app-body .ttb-curriculum-shell .bg-indigo-50,
body.ttb-app-body .ttb-curriculum-shell .bg-indigo-50\/80,
body.ttb-app-body .ttb-curriculum-shell .bg-indigo-100,
body.ttb-app-body .ttb-curriculum-shell .from-indigo-50,
body.ttb-app-body .ttb-curriculum-shell .to-blue-50\/50 {
  background: oklch(0.28 0.06 200 / 0.2) !important;
}

body.ttb-app-body .ttb-curriculum-shell .border-indigo-100,
body.ttb-app-body .ttb-curriculum-shell .border-indigo-200,
body.ttb-app-body .ttb-curriculum-shell .border-indigo-300,
body.ttb-app-body .ttb-curriculum-shell .hover\:border-indigo-200:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:border-indigo-300:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:border-indigo-400:hover {
  border-color: oklch(0.72 0.14 200 / 0.35) !important;
}

body.ttb-app-body .ttb-curriculum-shell .bg-indigo-200,
body.ttb-app-body .ttb-curriculum-shell .bg-indigo-200\/40,
body.ttb-app-body .ttb-curriculum-shell .bg-indigo-400 {
  background: oklch(0.32 0.08 200 / 0.35) !important;
}

body.ttb-app-body .ttb-curriculum-shell .bg-indigo-600,
body.ttb-app-body .ttb-curriculum-shell .from-indigo-600,
body.ttb-app-body .ttb-curriculum-shell .to-violet-600,
body.ttb-app-body .ttb-curriculum-shell .from-indigo-500,
body.ttb-app-body .ttb-curriculum-shell .to-purple-500 {
  background: linear-gradient(180deg, var(--ttb-signal), var(--ttb-signal-deep)) !important;
  color: oklch(0.14 0.04 265) !important;
}

body.ttb-app-body .ttb-curriculum-shell .hover\:bg-indigo-50:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:bg-indigo-600:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:bg-indigo-700:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:text-indigo-600:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:text-indigo-700:hover,
body.ttb-app-body .ttb-curriculum-shell .hover\:text-indigo-800:hover {
  border-color: var(--ttb-signal) !important;
  color: var(--ttb-signal) !important;
  background: oklch(0.28 0.06 200 / 0.25) !important;
}

body.ttb-app-body .ttb-curriculum-shell .focus\:ring-indigo-500\/20:focus,
body.ttb-app-body .ttb-curriculum-shell .focus\:border-indigo-300:focus {
  border-color: var(--ttb-signal) !important;
  box-shadow: 0 0 0 3px oklch(0.72 0.14 200 / 0.22) !important;
}

body.ttb-app-body .ttb-curriculum-shell .shadow-indigo-200,
body.ttb-app-body .ttb-curriculum-shell .shadow-indigo-500\/20,
body.ttb-app-body .ttb-curriculum-shell .hover\:shadow-indigo-500\/30:hover {
  box-shadow: var(--ttb-glow-signal) !important;
}

body.ttb-app-body .ttb-curriculum-shell .prose-code\:text-indigo-700 code {
  color: var(--ttb-signal) !important;
  background: oklch(0.28 0.06 200 / 0.2) !important;
}