:root {
  --altus-font: "Montserrat", "Segoe UI", "Helvetica Neue", sans-serif;
  --altus-bg: #0f172a;
  --altus-card: #111827;
  --altus-surface: #0b1220;
  --altus-primary: #0ea5e9;
  --altus-accent: #f59e0b;
  --altus-text: #e5e7eb;
  --altus-muted: #9ca3af;
  --altus-border: #1f2937;
  --altus-success: #22c55e;
  --altus-error: #ef4444;
  --altus-radius: 12px;
  --altus-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.altuslms-block {
  font-family: var(--altus-font);
  background: linear-gradient(160deg, var(--altus-bg), #0c1b33);
  color: var(--altus-text);
  padding: 32px;
  border-radius: var(--altus-radius);
  box-shadow: var(--altus-shadow);
  border: 1px solid var(--altus-border);
  margin: 24px 0;
}

.screen-reader-text {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.screen-reader-text:focus,
.screen-reader-text:focus-visible {
  position: static;
  width: auto;
  height: auto;
  margin: 0 0 12px 0;
  padding: 8px 10px;
  background: #0ea5e9;
  color: #0b1220;
  border-radius: 6px;
  outline: 2px solid #0b1220;
}

.altuslms-title {
  margin: 4px 0 0;
  font-size: 28px;
}

.altuslms-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--altus-accent);
  margin: 0 0 4px;
}

.altuslms-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.altuslms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.altuslms-card {
  background: var(--altus-card);
  border: 1px solid var(--altus-border);
  border-radius: var(--altus-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  box-shadow: var(--altus-shadow);
}

.altuslms-card__media {
  position: relative;
  height: 140px;
  background: #0c1528;
  display: flex;
  align-items: center;
  justify-content: center;
}

.altuslms-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.altuslms-card__placeholder {
  color: var(--altus-muted);
  font-size: 13px;
}

.altuslms-card__body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.altuslms-card__desc {
  color: var(--altus-muted);
  font-size: 14px;
  line-height: 1.6;
}

.altuslms-card__meta {
  display: flex;
  gap: 10px;
  color: var(--altus-accent);
  font-weight: 600;
}

.altuslms-card:focus-within,
.altuslms-list__item:focus-within {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
}

.altuslms-card__actions {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.altuslms-button {
  background: var(--altus-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
  box-shadow: 0 6px 15px rgba(14, 165, 233, 0.35);
}

.altuslms-button:focus,
.altuslms-button:focus-visible {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(147, 197, 253, 0.35);
}

.altuslms-button:hover {
  transform: translateY(-1px);
}

.altuslms-button--ghost {
  background: transparent;
  border: 1px solid var(--altus-border);
  color: var(--altus-text);
  box-shadow: none;
}

.altuslms-button--primary {
  background: linear-gradient(120deg, var(--altus-primary), #67e8f9);
  color: #0b1220;
}

.altuslms-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: #fef08a; /* high contrast on dark */
  color: #0f172a;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.altuslms-chip {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: #f9fafb;
  font-size: 12px;
  font-weight: 700;
}

.altuslms-notice {
  padding: 12px 14px;
  border-radius: var(--altus-radius);
  margin-bottom: 16px;
  border: 1px solid var(--altus-border);
}

.altuslms-notice--success {
  background: rgba(34, 197, 94, 0.12);
  color: #bbf7d0;
  border-color: rgba(34, 197, 94, 0.5);
}

.altuslms-notice--error {
  background: rgba(239, 68, 68, 0.12);
  color: #fecaca;
  border-color: rgba(239, 68, 68, 0.5);
}

.altuslms-course__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.altuslms-course__meta span {
  margin-right: 10px;
  color: var(--altus-accent);
}

.altuslms-outline {
  padding-left: 18px;
}

.altuslms-outline__module {
  margin-bottom: 12px;
}

.altuslms-outline__module-title {
  font-weight: 700;
}

.altuslms-outline__lessons {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
}

.altuslms-outline__lessons li {
  padding: 6px 0;
  display: flex;
  justify-content: space-between;
  color: var(--altus-muted);
}

.altuslms-course__meta-cards {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 12px 0 0;
}

.altuslms-dashboard .altuslms-list,
.altuslms-transcript .altuslms-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.altuslms-list__item {
  display: flex;
  justify-content: space-between;
  background: var(--altus-card);
  padding: 14px;
  border-radius: var(--altus-radius);
  border: 1px solid var(--altus-border);
  align-items: center;
}

.altuslms-muted {
  color: #d1d5db;
  margin: 4px 0 0;
}

.altuslms-player__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.altuslms-player__progress {
  min-width: 160px;
  color: var(--altus-muted);
}

.altuslms-progressbar {
  width: 100%;
  background: var(--altus-border);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}

.altuslms-progressbar__fill {
  background: linear-gradient(90deg, var(--altus-primary), var(--altus-accent));
  height: 100%;
}

.altuslms-player__video,
.altuslms-player__frame {
  width: 100%;
  border: none;
  border-radius: var(--altus-radius);
  min-height: 420px;
  background: #0c1528;
}

.altuslms-lesson-html {
  background: var(--altus-card);
  padding: 16px;
  border-radius: var(--altus-radius);
}

.altuslms-player__actions {
  margin: 12px 0;
}

.altuslms-quiz__questions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.altuslms-player__quizzes .altuslms-card {
  padding: 12px;
}

.altuslms-select {
  background: var(--altus-card);
  color: var(--altus-text);
  border: 1px solid var(--altus-border);
  border-radius: 8px;
  padding: 8px 10px;
}

.altuslms-inline-notice {
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(14, 165, 233, 0.3);
  color: var(--altus-text);
  padding: 10px 12px;
  border-radius: var(--altus-radius);
  margin: 0 0 12px;
  display: none;
}

.altuslms-inline-notice.is-error {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.3);
}

.altuslms-inline-notice.is-success {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.3);
}

.altuslms-quiz__result {
  background: var(--altus-card);
  padding: 12px;
  border-radius: var(--altus-radius);
  border: 1px solid var(--altus-border);
  margin-top: 10px;
}

.altuslms-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.altuslms-summary .altuslms-card {
  min-height: 100px;
  align-items: center;
  justify-content: center;
  text-align: center;
}

@media (max-width: 768px) {
  .altuslms-card__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .altuslms-course__header,
  .altuslms-player__header {
    flex-direction: column;
    align-items: flex-start;
  }
  .altuslms-list__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}