.microcourse {
  max-width: 880px;
  margin: 0 auto;
  padding: 5.5rem 1.25rem 3.5rem;
  color: var(--text);
}

.course-hero,
.lesson-header {
  margin-bottom: 2.4rem;
}

.course-hero {
  display: grid;
  gap: 1.25rem;
  padding-bottom: 0.5rem;
}

.course-hero-media {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #0b1014;
  max-height: 260px;
}

.course-hero-media img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center;
}

.course-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 1.15rem;
}

.course-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.course-hero-actions {
  margin: 0;
}

.lesson-card-cta {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.course-hero h1,
.lesson-header h1 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

@media (min-width: 900px) {
  .course-hero {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
  }

  .course-hero-media {
    max-height: none;
  }

  .course-hero-media img {
    height: 280px;
  }
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.45rem;
  font-weight: 600;
}

.course-meta,
.lesson-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.lesson-goal {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  color: #d7e0e6;
}

.lesson-grid h2,
.course-sources h2,
.course-outcomes h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.course-outcomes {
  margin: 0 0 2.2rem;
  padding: 1.25rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(45, 212, 191, 0.06), var(--bg-panel));
}

.course-outcomes-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}

.course-outcomes-list li {
  position: relative;
  padding-left: 1.35rem;
  color: #d7e0e6;
  line-height: 1.45;
}

.course-outcomes-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.18);
}

@media (min-width: 700px) {
  .course-outcomes-list {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1.25rem;
  }
}

.lesson-grid-items {
  display: grid;
  gap: 0.9rem;
}

.lesson-card {
  display: block;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--bg-panel), var(--bg-elevated));
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.lesson-card:hover {
  border-color: var(--accent);
  color: var(--text);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.lesson-num {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.lesson-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
}

.course-sources {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.course-sources ul {
  padding-left: 1.1rem;
}

.lesson-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.45rem;
  margin-bottom: 1.1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.lesson-breadcrumb a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.lesson-breadcrumb a:hover {
  color: #7af0df;
  text-decoration: none;
}

.lesson-breadcrumb-sep {
  opacity: 0.5;
}

.course-toolbar {
  margin: 0 0 1.35rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--bg-panel), rgba(24, 33, 40, 0.55));
}

.course-toolbar-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.55rem;
}

.course-toolbar-sep {
  color: var(--text-muted);
  opacity: 0.55;
  user-select: none;
}

.course-toolbar-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: color 0.15s ease, transform 0.15s ease;
}

.course-toolbar-link:hover {
  color: #7af0df;
  text-decoration: none;
  transform: translateX(-1px);
}

.course-toolbar-link--secondary {
  color: #c5d0d8;
  font-weight: 500;
}

.course-toolbar-link--secondary:hover {
  color: var(--text);
}

.lesson-body {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.lesson-block {
  padding: 1.75rem 0;
  border-top: 1px solid var(--border);
}

.lesson-block:first-child {
  border-top: none;
  padding-top: 0.35rem;
}

.lesson-block-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: baseline;
  margin-bottom: 1rem;
}

.lesson-block-index {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.lesson-block-head h2 {
  margin: 0;
  font-size: 1.2rem;
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.35;
}

.lesson-block-body p {
  line-height: 1.75;
  margin-bottom: 0.9rem;
  color: #d7e0e6;
}

.lesson-checklist {
  margin: 0.35rem 0 1.1rem;
  padding: 1rem 1.05rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(45, 212, 191, 0.07), var(--bg-panel));
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.lesson-checklist.is-complete {
  border-color: rgba(45, 212, 191, 0.55);
  box-shadow: 0 0 0 1px rgba(45, 212, 191, 0.18);
}

.lesson-checklist-progress {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.lesson-checklist-count {
  flex: 0 0 auto;
  min-width: 3.2rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.lesson-checklist-bar {
  flex: 1 1 auto;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.lesson-checklist-bar-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #2dd4bf, #5eead4);
  transition: width 0.25s ease;
}

.lesson-checklist-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.lesson-check-item {
  border-radius: 10px;
  background: rgba(11, 16, 20, 0.35);
  border: 1px solid transparent;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.lesson-check-item:hover {
  border-color: var(--border);
  background: rgba(11, 16, 20, 0.55);
}

.lesson-check-item.is-checked {
  border-color: rgba(45, 212, 191, 0.28);
  background: rgba(45, 212, 191, 0.08);
}

.lesson-check-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 0;
  padding: 0.75rem 0.85rem;
  cursor: pointer;
  user-select: none;
}

.lesson-check-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.lesson-check-box {
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.15rem;
  border: 1.5px solid #8a97a1;
  border-radius: 5px;
  background: rgba(15, 20, 24, 0.85);
  position: relative;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.lesson-check-box::after {
  content: "";
  position: absolute;
  left: 0.32rem;
  top: 0.1rem;
  width: 0.32rem;
  height: 0.58rem;
  border: solid #06201c;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform 0.15s ease;
}

.lesson-check-input:focus-visible + .lesson-check-box {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lesson-check-item.is-checked .lesson-check-box,
.lesson-check-input:checked + .lesson-check-box {
  border-color: var(--accent);
  background: var(--accent);
}

.lesson-check-item.is-checked .lesson-check-box::after,
.lesson-check-input:checked + .lesson-check-box::after {
  transform: rotate(45deg) scale(1);
}

.lesson-check-text {
  color: #d7e0e6;
  line-height: 1.5;
  font-size: 0.98rem;
}

.lesson-check-item.is-checked .lesson-check-text {
  color: #e8f7f4;
}

.lesson-figure {
  margin: 0 0 1.15rem;
  overflow: hidden;
  background: #0b1014;
  border-radius: 12px;
}

.lesson-figure img {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  object-position: center;
  background: #0b1014;
}

.lesson-figure img[src$=".svg"],
.lesson-figure img[src$=".png"] {
  object-fit: contain;
  max-height: 420px;
  padding: 0.35rem;
}

.lesson-figure figcaption {
  padding: 0.7rem 0.85rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  background: rgba(24, 33, 40, 0.85);
}

.lesson-code {
  margin: 1rem 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #0b1014;
}

.lesson-code-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: rgba(24, 33, 40, 0.95);
}

.lesson-code-title {
  margin: 0;
  color: var(--text);
  font-weight: 600;
  font-size: 0.92rem;
}

.lesson-code-file {
  margin: 0.15rem 0 0;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.lesson-code-copy {
  border: 1px solid var(--border-strong);
  background: var(--bg-panel);
  color: var(--text);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.lesson-code-copy:hover,
.lesson-code-copy.is-copied {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(61, 214, 195, 0.08);
}

.lesson-code-pre {
  margin: 0;
  padding: 0.95rem 1rem;
  overflow-x: auto;
  color: #d7e0e6;
  font-size: 0.86rem;
  line-height: 1.55;
  font-family: Consolas, "Courier New", monospace;
  background: #080c10;
}

.lesson-code-pre code {
  color: inherit;
  font-family: inherit;
  white-space: pre;
}

.lesson-code-tip {
  margin: 0;
  padding: 0.65rem 0.85rem 0.8rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.86rem;
  background: rgba(24, 33, 40, 0.75);
}

.lesson-pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 2.2rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--border);
}

@media (min-width: 768px) {
  .lesson-grid-items {
    grid-template-columns: 1fr 1fr;
  }
}