.hero {
  min-height: calc(100vh - var(--topbar));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: center;
  padding-block: 82px;
}

.hero h1,
.code-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(42px, 5.8vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero h1 em,
.code-hero h1 em {
  color: var(--purple-soft);
  font-style: normal;
}

.hero-lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.58;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.microcopy {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.download-card {
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(24, 34, 57, 0.96), rgba(14, 20, 35, 0.97));
  box-shadow: var(--shadow);
}

.download-card-head {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 13px;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}

.file-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: rgba(37, 215, 239, 0.1);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
}

.download-card-head div {
  display: grid;
}

.download-card-head small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.download-card-head strong {
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 13px;
}

.ready-dot {
  color: var(--green);
  font-family: var(--mono);
  font-size: 9px;
}

.ready-dot::before {
  content: "●";
  margin-right: 5px;
}

.folder-preview {
  display: grid;
  gap: 7px;
  padding: 24px 28px;
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
}

.folder-preview span:first-child {
  color: var(--cyan-soft);
  font-weight: 800;
}

.download-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  background: rgba(9, 13, 24, 0.45);
}

.download-meta span {
  display: grid;
  padding: 14px;
  text-align: center;
}

.download-meta span + span {
  border-left: 1px solid var(--border);
}

.download-meta b {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 10px;
}

.download-meta small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 9px;
}

.setup-band {
  padding-block: 50px;
  border-block: 1px solid var(--border);
  background: rgba(14, 20, 35, 0.72);
}

.setup-band .shell {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 44px;
  align-items: center;
}

.setup-band h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.3;
}

.setup-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.setup-steps li {
  min-height: 126px;
  display: grid;
  align-content: space-between;
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
}

.setup-steps > li > span {
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
}

.setup-steps div {
  display: grid;
}

.setup-steps b {
  font-size: 13px;
}

.setup-steps small {
  color: var(--muted);
  font-size: 10px;
}

.track-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.track-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.track-card.featured {
  border-color: rgba(139, 111, 255, 0.55);
  background: linear-gradient(150deg, rgba(139, 111, 255, 0.09), var(--panel) 45%);
  box-shadow: var(--shadow);
}

.track-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.track-code {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--purple);
  color: #fff;
  font-family: var(--mono);
  font-weight: 900;
}

.track-code.code {
  background: var(--cyan);
  color: var(--bg);
}

.track-card h3 {
  margin: 24px 0 8px;
  font-family: var(--display);
  font-size: 28px;
}

.track-promise {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.feature-list {
  display: grid;
  gap: 9px;
  margin: 22px 0 26px;
  padding: 0;
  color: var(--ink-muted);
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 24px;
}

.feature-list li::before {
  position: absolute;
  left: 0;
  content: "✓";
  color: var(--green);
  font-family: var(--mono);
  font-weight: 900;
}

.track-card .button {
  margin-top: auto;
}

.knowledge-callout {
  display: grid;
  grid-template-columns: 64px minmax(0, 1.35fr) minmax(240px, 0.75fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 20px;
  padding: 26px 30px;
  border: 1px solid rgba(37, 215, 239, 0.28);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(37, 215, 239, 0.065), var(--bg-raised) 42%);
}

.knowledge-mark {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 215, 239, 0.3);
  border-radius: 18px;
  background: rgba(37, 215, 239, 0.08);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 900;
}

.knowledge-callout h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 23px;
}

.knowledge-callout p:not(.eyebrow) {
  margin: 7px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.knowledge-callout ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 20px;
  color: var(--ink-muted);
  font-size: 12px;
}

.library-hero {
  min-height: min(760px, calc(100vh - var(--topbar)));
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: center;
  padding-block: 80px;
}

.library-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(38px, 5.2vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.library-hero h1 em {
  color: var(--cyan-soft);
  font-style: normal;
}

.library-hero > div > p:not(.eyebrow) {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 19px;
}

.library-guide {
  padding: 26px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(139, 111, 255, 0.08), var(--panel));
  box-shadow: var(--shadow);
}

.library-guide ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.library-guide li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 78px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: rgba(9, 13, 24, 0.38);
}

.library-guide li > span {
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
}

.library-guide li div {
  display: grid;
}

.library-guide li b {
  font-size: 13px;
}

.library-guide li small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
}

.library-bridge {
  padding-block: 64px;
  border-block: 1px solid var(--border);
  background: rgba(14, 20, 35, 0.72);
}

.bridge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.bridge-grid article {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}

.bridge-grid span {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 900;
}

.bridge-grid b {
  display: block;
  margin-top: 9px;
  font-family: var(--display);
  font-size: 16px;
}

.bridge-grid p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.se-module-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.se-module-card {
  min-height: 184px;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--ink);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.se-module-card:hover {
  border-color: rgba(37, 215, 239, 0.48);
  background: var(--panel-2);
  text-decoration: none;
  transform: translateY(-2px);
}

.se-module-card > span {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(139, 111, 255, 0.32);
  border-radius: 15px;
  background: rgba(139, 111, 255, 0.07);
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
}

.se-module-card small {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.se-module-card h3 {
  margin: 7px 0 0;
  font-family: var(--display);
  font-size: 19px;
}

.se-module-card p {
  margin: 7px 0 0;
  color: var(--ink-muted);
  font-size: 12px;
}

.glossary-callout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 28px;
  align-items: center;
  margin-bottom: 88px;
  padding: 30px 34px;
  border: 1px solid rgba(246, 196, 83, 0.3);
  border-radius: var(--radius-lg);
  background: rgba(246, 196, 83, 0.045);
}

.glossary-callout h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 24px;
}

.glossary-callout p:not(.eyebrow) {
  margin: 7px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.glossary-count {
  display: grid;
  text-align: center;
}

.glossary-count b {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 34px;
  line-height: 1;
}

.glossary-count span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
}

.merge-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.merge-list > div {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
}

.merge-list span {
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
}

.merge-list b {
  display: block;
  margin-top: 11px;
  font-family: var(--display);
  font-size: 17px;
}

.merge-list p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.resume-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-block: 0 80px;
  padding: 28px 32px;
  border: 1px solid rgba(61, 214, 161, 0.3);
  border-radius: var(--radius-lg);
  background: rgba(61, 214, 161, 0.055);
}

.resume-panel[hidden] {
  display: none;
}

.resume-panel h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 24px;
}

.resume-panel p:last-child {
  margin: 5px 0 0;
  color: var(--ink-muted);
}

/* Cowork course */
.course-shell {
  width: min(1480px, calc(100% - 28px));
  display: grid;
  grid-template-columns: 268px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin: 20px auto 70px;
}

.course-rail {
  position: sticky;
  top: calc(var(--topbar) + 18px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.rail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
}

.rail-head div {
  display: grid;
}

.rail-head small,
.rail-head > span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
}

.rail-head b {
  font-size: 13px;
}

.rail-lessons {
  display: grid;
}

.rail-lesson {
  width: 100%;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 18px;
  gap: 9px;
  align-items: center;
  padding: 13px 14px;
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--ink-muted);
  text-align: left;
  cursor: pointer;
}

.rail-lesson:hover,
.rail-lesson.active {
  background: var(--panel-2);
  color: var(--ink);
}

.rail-lesson.active {
  box-shadow: inset 3px 0 var(--purple);
}

.rail-lesson.locked {
  opacity: 0.52;
}

.rail-lesson .rail-num,
.rail-lesson .rail-state {
  font-family: var(--mono);
  font-size: 9px;
}

.rail-lesson .rail-num {
  color: var(--purple-soft);
}

.rail-lesson .rail-title {
  display: -webkit-box;
  overflow: hidden;
  font-size: 11px;
  font-weight: 750;
  line-height: 1.35;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.rail-lesson.completed .rail-state {
  color: var(--green);
}

.rail-footer {
  padding: 12px 14px;
}

.text-button {
  padding: 3px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 10px;
  cursor: pointer;
}

.lesson-stage {
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.lesson-header {
  padding: 30px 34px;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(circle at 90% 8%, rgba(139, 111, 255, 0.15), transparent 20rem), var(--bg-raised);
}

.lesson-overline {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.lesson-overline span {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
}

.lesson-overline span:first-child {
  border-color: rgba(139, 111, 255, 0.35);
  color: var(--purple-soft);
}

.lesson-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
}

.lesson-title-row h1 {
  max-width: 800px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.lesson-progress-ring {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  display: grid;
  place-content: center;
  border: 6px solid var(--panel-3);
  border-top-color: var(--purple);
  border-radius: 50%;
  text-align: center;
}

.lesson-progress-ring b {
  font-family: var(--mono);
  font-size: 14px;
}

.lesson-progress-ring small {
  color: var(--muted);
  font-size: 8px;
}

.lesson-outcome {
  max-width: 860px;
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.artifact-pill {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
  padding: 10px 13px;
  border: 1px solid rgba(37, 215, 239, 0.25);
  border-radius: 11px;
  background: rgba(37, 215, 239, 0.05);
}

.artifact-pill span {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 9px;
}

.artifact-pill b {
  font-family: var(--mono);
  font-size: 11px;
}

.step-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 22px;
  align-items: start;
  padding: 30px 34px 38px;
}

.step-counter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 800;
}

.step-dots {
  display: flex;
  gap: 4px;
}

.step-dots span {
  width: 22px;
  height: 4px;
  border-radius: 999px;
  background: var(--panel-3);
}

.step-dots span.done {
  background: var(--green);
}

.step-dots span.active {
  background: var(--purple);
}

.action-card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
}

.action-card.overview-mode {
  overflow: hidden;
  border-color: rgba(139, 111, 255, 0.32);
  background:
    radial-gradient(circle at 82% 5%, rgba(37, 215, 239, 0.09), transparent 34%),
    radial-gradient(circle at 8% 35%, rgba(139, 111, 255, 0.12), transparent 38%),
    var(--bg-raised);
}

.action-location {
  position: absolute;
  top: 18px;
  right: 18px;
  display: grid;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel);
  text-align: right;
}

.action-location span {
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 800;
}

.action-location small {
  color: var(--muted);
  font-size: 8px;
}

.step-kicker {
  margin: 0 120px 7px 0;
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 900;
}

.action-card h2 {
  max-width: 720px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(22px, 2.4vw, 29px);
  line-height: 1.3;
}

.step-body {
  margin-top: 18px;
  color: var(--ink-soft);
}

.step-body p {
  margin: 0;
}

.step-body p + p {
  margin-top: 10px;
}

.learning-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-bottom: 16px;
}

.learning-strip > div {
  padding: 12px 14px;
  border: 1px solid rgba(37, 215, 239, 0.2);
  border-radius: 11px;
  background: rgba(37, 215, 239, 0.045);
}

.learning-strip span {
  display: block;
  margin-bottom: 4px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.learning-strip p {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.step-body ol,
.step-body ul {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding-left: 23px;
}

.step-body code {
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 0.9em;
}

.infographic-frame {
  overflow: hidden;
  max-width: 760px;
  margin: 0 auto;
  border: 1px solid rgba(139, 111, 255, 0.34);
  border-radius: 16px;
  background: #070b18;
  box-shadow: 0 22px 70px rgba(4, 7, 16, 0.42);
}

.infographic-image-link {
  display: block;
  background: #f7fbff;
}

.infographic-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.infographic-frame figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 17px;
  border-top: 1px solid rgba(139, 111, 255, 0.24);
  background: linear-gradient(90deg, rgba(139, 111, 255, 0.13), rgba(37, 215, 239, 0.06));
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  text-align: center;
}

.infographic-full-link {
  flex: 0 0 auto;
  color: var(--cyan-soft);
  font-size: 12px;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.infographic-image-link:focus-visible,
.infographic-full-link:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: -3px;
}

.overview-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-top: 16px;
}

.overview-flow span {
  padding: 7px 10px;
  border: 1px solid rgba(37, 215, 239, 0.2);
  border-radius: 999px;
  background: rgba(37, 215, 239, 0.06);
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.overview-flow b {
  color: var(--purple-soft);
  font-family: var(--mono);
}

.overview-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-top: 16px;
}

.overview-points section {
  min-height: 92px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(8, 12, 21, 0.56);
}

.overview-points section:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.overview-points h3,
.overview-setup h3 {
  margin: 0;
  color: var(--ink);
  font-size: 12px;
}

.overview-points p {
  margin-top: 5px;
  color: var(--ink-muted);
  font-size: 10.5px;
  line-height: 1.65;
}

.overview-explanation {
  margin-top: 16px;
  padding: 16px 17px;
  border-left: 3px solid var(--purple);
  border-radius: 0 12px 12px 0;
  background: rgba(139, 111, 255, 0.07);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.75;
}

.overview-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 14px;
}

.overview-facts span {
  padding: 7px 10px;
  border: 1px solid rgba(246, 196, 83, 0.24);
  border-radius: 9px;
  background: rgba(246, 196, 83, 0.07);
  color: #ffe5a2;
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 800;
}

.overview-setup {
  margin-top: 17px;
  padding: 17px;
  border: 1px solid rgba(61, 214, 161, 0.24);
  border-radius: 13px;
  background: rgba(61, 214, 161, 0.05);
}

.overview-setup ol {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-top: 12px;
  padding: 0;
  list-style: none;
}

.overview-setup li {
  display: grid;
  gap: 4px;
  padding: 11px;
  border: 1px solid rgba(61, 214, 161, 0.16);
  border-radius: 10px;
  background: rgba(4, 12, 15, 0.35);
}

.overview-setup li b {
  color: var(--green);
  font-family: var(--mono);
  font-size: 9px;
}

.overview-setup li span {
  color: var(--ink-muted);
  font-size: 10.5px;
  line-height: 1.6;
}

.step-download {
  margin-top: 18px;
}

.clipboard-fallback {
  position: fixed;
  opacity: 0;
  pointer-events: none;
}

.prompt-card {
  overflow: hidden;
  margin-top: 22px;
  border: 1px solid var(--border-strong);
  border-radius: 13px;
  background: #080c15;
}

.prompt-card[hidden] {
  display: none;
}

.prompt-head {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 11px 8px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
}

.prompt-head button {
  min-height: 30px;
  padding: 5px 9px;
  border: 1px solid rgba(37, 215, 239, 0.28);
  border-radius: 8px;
  background: rgba(37, 215, 239, 0.06);
  color: var(--cyan-soft);
  font-size: 9px;
  font-weight: 800;
  cursor: pointer;
}

.prompt-card pre {
  max-height: 360px;
  overflow: auto;
  margin: 0;
  padding: 17px;
  color: #d8e0f5;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  white-space: pre-wrap;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.result-grid[hidden] {
  display: none;
}

.result-card {
  min-height: 142px;
  display: flex;
  gap: 12px;
  padding: 17px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--bg-raised);
}

.result-card.expected {
  border-color: rgba(61, 214, 161, 0.22);
}

.result-card.recovery {
  display: block;
}

.result-card.recovery summary {
  display: flex;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.result-card summary::-webkit-details-marker {
  display: none;
}

.result-icon {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: rgba(61, 214, 161, 0.09);
  color: var(--green);
  font-family: var(--mono);
  font-weight: 900;
}

.recovery .result-icon {
  background: rgba(246, 196, 83, 0.09);
  color: var(--amber);
}

.result-card h3 {
  margin: 0;
  font-size: 13px;
}

.result-card p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 10px;
}

.result-card ul {
  display: grid;
  gap: 6px;
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--ink-muted);
  font-size: 10.5px;
}

.step-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
}

.step-actions .confirm {
  margin-left: auto;
}

.evidence-note {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 10px;
  text-align: right;
}

.lesson-summary {
  position: sticky;
  top: calc(var(--topbar) + 18px);
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-raised);
}

.lesson-summary > ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  color: var(--ink-muted);
  font-size: 11px;
  list-style: none;
}

.lesson-summary > ul li {
  position: relative;
  padding-left: 20px;
}

.lesson-summary > ul li::before {
  position: absolute;
  left: 0;
  content: "○";
  color: var(--purple-soft);
  font-family: var(--mono);
}

.checkpoint-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.checkpoint-summary span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
}

.checkpoint-summary b {
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
}

.mini-download {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
  padding: 10px;
  border: 1px solid rgba(37, 215, 239, 0.2);
  border-radius: 10px;
  background: rgba(37, 215, 239, 0.04);
}

.mini-download:hover {
  text-decoration: none;
}

.mini-download > span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(37, 215, 239, 0.09);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 900;
}

.mini-download div {
  display: grid;
}

.mini-download b {
  color: var(--ink-soft);
  font-size: 10px;
}

.mini-download small {
  color: var(--muted);
  font-size: 8px;
}

.lesson-references {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.lesson-references > p {
  margin: 0 0 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lesson-references > div,
.code-reference-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.lesson-references a,
.code-reference-links a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 6px 9px;
  border: 1px solid rgba(37, 215, 239, 0.2);
  border-radius: 9px;
  background: rgba(37, 215, 239, 0.04);
  color: var(--cyan-soft);
  font-size: 9px;
  font-weight: 700;
}

.lesson-references a:hover,
.code-reference-links a:hover {
  border-color: rgba(37, 215, 239, 0.45);
  text-decoration: none;
}

.confirm-dialog {
  max-width: 480px;
  padding: 26px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--panel);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.confirm-dialog::backdrop {
  background: rgba(2, 4, 9, 0.76);
  backdrop-filter: blur(4px);
}

.confirm-dialog h2 {
  margin: 0;
  font-family: var(--display);
}

.confirm-dialog p {
  color: var(--ink-muted);
}

.confirm-dialog > div {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  margin-top: 20px;
}

/* Claude Code map */
.code-hero {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
  align-items: center;
  min-height: 670px;
  padding-block: 80px;
}

.code-hero h1 {
  font-size: clamp(40px, 5vw, 60px);
}

.code-hero > div:first-child > p:not(.eyebrow) {
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.two-session-map {
  display: grid;
  grid-template-columns: 1fr 118px 1fr;
  gap: 12px;
  align-items: stretch;
}

.two-session-map article {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid rgba(139, 111, 255, 0.38);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(139, 111, 255, 0.09), var(--panel));
}

.two-session-map article.workshop {
  border-color: rgba(37, 215, 239, 0.35);
  background: linear-gradient(145deg, rgba(37, 215, 239, 0.07), var(--panel));
}

.session-label {
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 900;
}

.workshop .session-label {
  color: var(--cyan);
}

.two-session-map article b {
  margin-top: 28px;
  font-family: var(--display);
  font-size: 22px;
}

.two-session-map article small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
}

.two-session-map article ul {
  display: grid;
  gap: 7px;
  margin: auto 0 0;
  padding: 0;
  color: var(--ink-muted);
  font-size: 11px;
  list-style: none;
}

.two-session-map article li::before {
  content: "↳";
  margin-right: 7px;
  color: var(--purple-soft);
}

.evidence-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  text-align: center;
}

.evidence-flow b {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  margin-block: 10px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--bg-raised);
  color: var(--ink);
  font-family: var(--font);
  font-size: 10px;
}

.start-here-section {
  padding-block: 82px;
  border-block: 1px solid var(--border);
  background:
    radial-gradient(circle at 12% 4%, rgba(37, 215, 239, 0.08), transparent 25rem),
    linear-gradient(180deg, rgba(14, 20, 35, 0.92), rgba(9, 13, 24, 0.72));
}

.start-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  gap: 42px;
  align-items: end;
}

.start-heading h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.start-formula {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.start-formula b {
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  background: var(--panel);
  color: var(--cyan-soft);
  font-size: 10px;
}

.start-formula span {
  color: var(--purple-soft);
}

.start-requirements {
  display: grid;
  grid-template-columns: minmax(190px, 0.58fr) minmax(0, 1.42fr);
  gap: 18px 34px;
  align-items: center;
  margin-top: 34px;
  padding: 20px 22px;
  border: 1px solid rgba(246, 196, 83, 0.3);
  border-radius: var(--radius);
  background: rgba(246, 196, 83, 0.055);
}

.start-requirements > b {
  color: #f7d98e;
  font-family: var(--display);
  font-size: 16px;
}

.start-requirements ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0;
  padding: 0;
  color: var(--ink-soft);
  font-size: 13px;
  list-style: none;
}

.start-requirements li::before {
  content: "✓";
  margin-right: 7px;
  color: var(--green);
  font-family: var(--mono);
  font-weight: 900;
}

.start-requirements > p {
  grid-column: 2;
  margin: -8px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.start-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.start-step {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(150deg, rgba(24, 34, 57, 0.96), rgba(14, 20, 35, 0.96));
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.18);
}

.start-step-command {
  border-color: rgba(139, 111, 255, 0.5);
  box-shadow: 0 16px 48px rgba(139, 111, 255, 0.09);
}

.start-step-final {
  border-color: rgba(61, 214, 161, 0.42);
}

.start-step header {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

.start-step-number {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 215, 239, 0.34);
  border-radius: 14px;
  background: rgba(37, 215, 239, 0.07);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.start-step header p {
  margin: 0 0 3px;
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.start-step h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(19px, 1.8vw, 23px);
  line-height: 1.3;
  text-wrap: balance;
}

.start-action > b,
.start-expected > b {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.start-action p,
.start-action ol,
.start-expected p,
.start-step details p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
  text-wrap: pretty;
}

.start-action ol {
  display: grid;
  gap: 5px;
  padding-left: 22px;
}

.start-action code,
.start-expected code,
.start-step details code,
.folder-pair code,
.start-ready code {
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.start-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.start-downloads .button {
  flex: 1 1 190px;
  font-size: 13px;
}

.start-expected {
  padding: 14px 15px;
  border: 1px solid rgba(61, 214, 161, 0.26);
  border-radius: 12px;
  background: rgba(61, 214, 161, 0.055);
}

.start-expected > b {
  color: #8cebc9;
}

.start-step details {
  margin-top: auto;
  border-top: 1px solid var(--border);
}

.start-step summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  color: #f7d98e;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.start-step summary:hover {
  color: #ffe9b2;
}

.start-step details p {
  padding: 0 0 4px;
  color: var(--ink-muted);
  font-size: 13px;
}

.folder-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.folder-pair span {
  min-width: 0;
  display: grid;
  gap: 4px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: rgba(9, 13, 24, 0.45);
}

.folder-pair small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 800;
}

.command-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-top: 12px;
  padding: 7px;
  border: 1px solid rgba(139, 111, 255, 0.42);
  border-radius: 13px;
  background: #090d18;
}

.command-row code {
  align-self: center;
  padding-inline: 10px;
  color: #d9d0ff;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 800;
}

.command-row button {
  min-width: 88px;
  min-height: 44px;
  border: 1px solid rgba(139, 111, 255, 0.45);
  border-radius: 9px;
  background: rgba(139, 111, 255, 0.16);
  color: #e2dcff;
  font-weight: 800;
  cursor: pointer;
  transition-property: transform, background-color, border-color;
  transition-duration: 160ms;
  transition-timing-function: ease-out;
}

.command-row button:hover {
  border-color: var(--purple-soft);
  background: rgba(139, 111, 255, 0.25);
}

.command-row button:active {
  transform: scale(0.97);
}

.learning-loop {
  margin-top: 10px !important;
}

.start-ready {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 20px;
  padding: 24px 26px;
  border: 1px solid rgba(61, 214, 161, 0.38);
  border-radius: var(--radius-lg);
  background: rgba(61, 214, 161, 0.065);
}

.start-ready h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 20px;
  text-wrap: balance;
}

.start-ready p:last-child {
  margin: 7px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.code-principles {
  padding-block: 50px;
  border-block: 1px solid var(--border);
}

.flow-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
}

.flow-strip span {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 800;
}

.flow-strip i {
  color: var(--purple-soft);
  font-style: normal;
}

.code-lesson-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.code-lesson-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}

.code-lesson-card:last-child {
  grid-column: 1 / -1;
}

.code-lesson-num {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 215, 239, 0.27);
  border-radius: 14px;
  background: rgba(37, 215, 239, 0.055);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 900;
}

.code-lesson-card h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 18px;
}

.code-lesson-card p {
  margin: 6px 0 0;
  color: var(--ink-muted);
  font-size: 12px;
}

.code-lesson-card small {
  display: block;
  margin-top: 10px;
  color: var(--purple-soft);
  font-family: var(--mono);
  font-size: 9px;
}

.code-reference-links {
  margin-top: 12px;
}

.code-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
  margin-block: 20px 90px;
  padding: 32px;
  border: 1px solid rgba(246, 196, 83, 0.3);
  border-radius: var(--radius-lg);
  background: rgba(246, 196, 83, 0.045);
}

.code-next h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 24px;
}

.code-next ol {
  display: grid;
  gap: 7px;
  margin: 0;
  color: var(--ink-muted);
}

@media (max-width: 1040px) {
  .hero,
  .code-hero {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .download-card {
    max-width: 680px;
  }

  .setup-band .shell {
    grid-template-columns: 1fr;
  }

  .course-shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

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

  .lesson-summary {
    position: static;
  }

  .start-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .start-formula {
    justify-content: flex-start;
  }

  .knowledge-callout {
    grid-template-columns: 64px minmax(0, 1fr) auto;
  }

  .knowledge-callout ul {
    grid-column: 2 / -1;
  }

  .library-hero {
    min-height: 0;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .track-grid,
  .merge-list,
  .bridge-grid,
  .se-module-grid,
  .code-lesson-grid,
  .code-next {
    grid-template-columns: 1fr;
  }

  .knowledge-callout,
  .glossary-callout {
    grid-template-columns: 1fr;
  }

  .knowledge-callout ul {
    grid-column: auto;
  }

  .knowledge-callout .button,
  .glossary-callout .button {
    width: 100%;
  }

  .glossary-count {
    justify-content: start;
    text-align: left;
  }

  .code-lesson-card:last-child {
    grid-column: auto;
  }

  .start-steps {
    grid-template-columns: 1fr;
  }

  .start-requirements {
    grid-template-columns: 1fr;
  }

  .start-requirements > p {
    grid-column: auto;
    margin-top: -4px;
  }

  .course-shell {
    width: min(100% - 24px, 1000px);
    grid-template-columns: 1fr;
  }

  .course-rail {
    position: static;
  }

  .rail-lessons {
    grid-template-columns: repeat(3, 1fr);
  }

  .rail-lesson {
    min-height: 58px;
    grid-template-columns: 24px minmax(0, 1fr) 14px;
    padding: 10px;
  }

  .two-session-map {
    grid-template-columns: 1fr;
  }

  .two-session-map article {
    min-height: 250px;
  }

  .evidence-flow {
    flex-direction: row;
    gap: 9px;
  }

  .evidence-flow b {
    margin: 0;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-block: 58px;
  }

  .hero h1,
  .code-hero h1 {
    font-size: clamp(36px, 11.5vw, 46px);
  }

  .download-meta,
  .setup-steps,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .download-meta span + span {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .setup-steps li {
    min-height: 90px;
  }

  .track-card {
    padding: 23px;
  }

  .knowledge-callout,
  .library-guide,
  .glossary-callout {
    padding: 22px 18px;
  }

  .library-hero {
    padding-block: 58px;
  }

  .library-hero h1 {
    font-size: clamp(34px, 10.5vw, 44px);
  }

  .se-module-card {
    min-height: 0;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
    padding: 20px 17px;
  }

  .se-module-card > span {
    width: 46px;
    height: 46px;
  }

  .resume-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .rail-lessons {
    grid-template-columns: repeat(2, 1fr);
  }

  .lesson-header,
  .step-layout {
    padding: 22px 18px;
  }

  .learning-strip {
    grid-template-columns: 1fr;
  }

  .lesson-title-row {
    align-items: flex-start;
  }

  .lesson-progress-ring {
    width: 62px;
    height: 62px;
  }

  .action-card {
    padding: 22px 17px;
  }

  .infographic-frame {
    margin-inline: -8px;
    max-width: none;
    border-radius: 12px;
  }

  .infographic-frame figcaption {
    flex-direction: column;
    gap: 7px;
    padding: 12px;
    font-size: 11px;
  }

  .overview-flow {
    justify-content: flex-start;
  }

  .overview-flow b {
    display: none;
  }

  .overview-points,
  .overview-setup ol {
    grid-template-columns: 1fr;
  }

  .overview-points section:last-child:nth-child(odd) {
    grid-column: auto;
  }

  .action-location {
    position: static;
    width: max-content;
    margin-bottom: 15px;
    text-align: left;
  }

  .step-kicker {
    margin-right: 0;
  }

  .step-actions {
    flex-direction: column-reverse;
  }

  .step-actions .button {
    width: 100%;
    margin: 0;
  }

  .evidence-note {
    text-align: left;
  }

  .code-hero {
    padding-block: 58px;
  }

  .start-here-section {
    padding-block: 60px;
  }

  .start-step {
    padding: 20px 17px;
    border-radius: var(--radius);
  }

  .start-formula span {
    display: none;
  }

  .folder-pair {
    grid-template-columns: 1fr;
  }

  .command-row {
    grid-template-columns: 1fr;
  }

  .command-row code {
    min-height: 42px;
    display: flex;
    align-items: center;
  }

  .start-ready {
    align-items: flex-start;
    flex-direction: column;
    padding: 22px 18px;
  }

  .start-ready .button {
    width: 100%;
  }

  .code-next {
    padding: 24px;
  }
}