/* ── Learning site custom styles ─────────────────────────────────────────── */

/* Track cards on the hub page */
.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.track-card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.track-card:hover {
  border-color: var(--md-accent-fg-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.track-card h3 {
  margin-top: 0;
}

.track-card .track-audience {
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
  margin-bottom: 0.75rem;
}

/* Module progress indicator */
.module-progress {
  display: flex;
  gap: 0.5rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.module-progress .step {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: 1rem;
  background: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
  text-decoration: none;
}

.module-progress .step.active {
  background: var(--md-accent-fg-color);
  color: white;
}

.module-progress .step.completed {
  background: #4caf50;
  color: white;
}

/* Scenario callout boxes */
.scenario-box {
  border-left: 4px solid var(--md-accent-fg-color);
  background: var(--md-code-bg-color);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 0.25rem 0.25rem 0;
}

.scenario-box .scenario-label {
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-accent-fg-color);
  margin-bottom: 0.5rem;
}

/* Decision exercise styling */
.decision-exercise {
  border: 2px solid var(--md-accent-fg-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin: 2rem 0;
}

.decision-exercise h4 {
  margin-top: 0;
  color: var(--md-accent-fg-color);
}

.decision-option {
  background: var(--md-code-bg-color);
  border-radius: 0.25rem;
  padding: 1rem;
  margin: 0.75rem 0;
}

.decision-option .option-label {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

/* Key concept highlight */
.key-concept {
  background: linear-gradient(135deg, var(--md-code-bg-color), transparent);
  border-left: 4px solid var(--md-accent-fg-color);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 0.25rem 0.25rem 0;
}

.key-concept strong:first-child {
  color: var(--md-accent-fg-color);
}

/* Learning objective badges */
.learning-objectives {
  background: var(--md-code-bg-color);
  border-radius: 0.5rem;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.learning-objectives h4 {
  margin-top: 0;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--md-default-fg-color--light);
}

/* Hero section for landing page */
.hero {
  text-align: center;
  padding: 3rem 1rem;
  margin: -1rem -1rem 2rem -1rem;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--md-default-fg-color--light);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero .cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero .cta-buttons a {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.25rem;
  font-weight: 600;
  text-decoration: none;
}

.hero .cta-primary {
  background: var(--md-accent-fg-color);
  color: white !important;
}

.hero .cta-secondary {
  border: 1px solid var(--md-default-fg-color--lighter);
  color: var(--md-default-fg-color) !important;
}

/* Five-beat visual indicator */
.five-beats {
  display: flex;
  gap: 0;
  margin: 1.5rem 0;
  overflow-x: auto;
}

.five-beats .beat {
  flex: 1;
  min-width: 120px;
  padding: 0.75rem;
  text-align: center;
  font-size: 0.8rem;
  border-bottom: 3px solid var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
}

.five-beats .beat.active {
  border-bottom-color: var(--md-accent-fg-color);
  color: var(--md-accent-fg-color);
  font-weight: 600;
}

.five-beats .beat .beat-number {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

/* ── Navbar logo: "Learn (AIRS)" with purple rounded badge ── */
.site-logo-text {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 1.1rem;
}

.site-logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #7b1fa2;
  color: #fff;
  font-family: var(--md-text-font, "Inter", Arial, sans-serif);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  line-height: 1.2;
  transition: background-color 0.15s;
}

.md-header__topic:first-child:hover .site-logo-badge {
  background-color: #6a1b9a;
}

/* Feedback section */
.feedback-section {
  text-align: center;
  padding: 1.5rem;
  margin: 2rem 0 0;
  border-top: 1px solid var(--md-default-fg-color--lightest);
}

.feedback-section p {
  margin: 0 0 0.75rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.9rem;
}

.feedback-section .feedback-link {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--md-accent-fg-color);
  border-radius: 0.25rem;
  color: var(--md-accent-fg-color) !important;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.feedback-section .feedback-link:hover {
  background: var(--md-accent-fg-color);
  color: white !important;
}