.library-hero {
  padding: 72px 0 38px;
  border-bottom: 1px solid var(--line);
  background: #07111d;
}

.library-hero-inner {
  max-width: 980px;
}

.library-hero h1,
.lesson-hero h1 {
  max-width: 900px;
  margin: 10px 0 18px;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1.03;
}

.library-hero-inner > p:not(.eyebrow),
.lesson-intro {
  max-width: 820px;
  color: #d7dee8;
  font-size: 19px;
}

.library-authority-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.library-authority-stats span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0a1828;
  color: #c8d2de;
  font-size: 13px;
}

.library-authority-stats strong {
  margin-right: 4px;
  color: var(--orange-2);
}

.library-search {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 18px;
  margin-top: 30px;
}

.library-search label {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.library-search input {
  width: 100%;
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid #29405b;
  border-radius: 6px;
  background: #0a1828;
  color: var(--text);
  font: inherit;
}

.library-search input:focus {
  outline: 2px solid rgba(255, 106, 0, .35);
  border-color: var(--orange);
}

.library-search > span {
  align-self: center;
  color: var(--muted);
  font-size: 13px;
}

.library-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  overflow-x: visible;
}

.library-controls > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.library-filter {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 13px;
  border: 1px solid #29405b;
  border-radius: 999px;
  background: #0a1828;
  color: #dce4ed;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.library-filter.active,
.library-filter:hover {
  border-color: var(--orange);
  background: rgba(255, 106, 0, .13);
  color: var(--orange-2);
}

.library-featured {
  margin-top: 24px;
}

.library-categories {
  padding-bottom: 10px;
}

.library-category-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.library-category-card {
  display: flex;
  min-height: 285px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #091522;
  flex-direction: column;
}

.library-category-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border: 1px solid rgba(255, 106, 0, .32);
  border-radius: 50%;
  background: rgba(255, 106, 0, .12);
  color: var(--orange-2);
  flex: 0 0 auto;
}

.library-category-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.library-category-card h3 {
  margin: 0 0 6px;
  font-size: 19px;
}

.library-category-card > strong {
  color: var(--orange-2);
  font-size: 13px;
}

.library-category-card p {
  flex-grow: 1;
  margin: 14px 0;
  color: var(--muted);
  font-size: 14px;
}

.library-category-card small {
  display: block;
  margin-top: 5px;
  color: #aebac7;
  font-size: 11px;
}

.library-category-card .text-link {
  margin-top: 16px;
}

.library-topic-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.library-topic-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid rgba(255, 106, 0, .35);
  border-radius: 999px;
  color: var(--orange-2);
  font-size: 13px;
  font-weight: 800;
}

.library-featured-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.library-featured-grid .lesson-card {
  min-height: 300px;
  border-color: rgba(255, 106, 0, .32);
}

.featured-lesson {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(250px, .55fr);
  gap: 40px;
  padding: 38px;
  border: 1px solid rgba(255, 106, 0, .35);
  border-left: 4px solid var(--orange);
  border-radius: 6px;
  background: #0a1726;
  box-shadow: var(--shadow);
}

.library-discovery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.library-discovery-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #091522;
}

.library-panel-heading {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.library-panel-heading h2 {
  font-size: 19px;
}

.library-panel-heading span {
  color: var(--muted);
  font-size: 11px;
}

.library-compact-lesson {
  padding: 12px 0;
  border-top: 1px solid rgba(38, 57, 77, .65);
}

.library-compact-lesson:first-child {
  border-top: 0;
}

.library-compact-lesson > span,
.library-compact-lesson small {
  color: var(--muted);
  font-size: 11px;
}

.library-compact-lesson h3 {
  margin: 4px 0;
  font-size: 15px;
  line-height: 1.35;
}

.library-compact-lesson h3 a:hover {
  color: var(--orange-2);
}

.featured-lesson h2 {
  max-width: 760px;
  margin: 12px 0;
  font-size: clamp(30px, 3vw, 44px);
}

.featured-lesson p,
.lesson-card p,
.related-course-card p {
  color: var(--muted);
}

.featured-lesson-meta,
.lesson-card-meta {
  display: grid;
  gap: 7px;
  color: #b8c4d1;
  font-size: 13px;
}

.featured-lesson-meta {
  align-content: center;
}

.featured-lesson-meta .btn {
  margin-top: 14px;
}

.library-topic {
  display: inline-flex;
  width: fit-content;
  padding: 5px 9px;
  border: 1px solid rgba(255, 106, 0, .35);
  border-radius: 999px;
  background: rgba(255, 106, 0, .1);
  color: var(--orange-2);
  font-size: 11px;
  font-weight: 900;
}

.library-list {
  padding-top: 42px;
}

.section-heading {
  margin-bottom: 20px;
}

.section-heading h2 {
  font-size: clamp(28px, 3vw, 40px);
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.lesson-card,
.related-course-card,
.lesson-highlight,
.lesson-section,
.lesson-author,
.lesson-bottom-actions,
.lesson-aside,
.blog-assessment-cta,
.library-empty {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #091522;
}

.lesson-card {
  display: flex;
  min-height: 330px;
  padding: 24px;
  flex-direction: column;
}

.lesson-card h3 {
  margin: 15px 0 10px;
  font-size: 22px;
}

.lesson-card p {
  flex-grow: 1;
  margin-bottom: 18px;
}

.lesson-card-meta {
  padding-top: 15px;
  border-top: 1px solid var(--line);
}

.lesson-card .text-link {
  margin-top: 18px;
}

.text-link {
  color: var(--orange-2);
  font-weight: 900;
}

.library-empty {
  padding: 26px;
}

.related-courses {
  padding-top: 25px;
}

.related-course-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.related-course-card {
  min-height: 180px;
  padding: 22px;
}

.related-course-card h3 {
  margin-bottom: 10px;
  font-size: 19px;
}

.blog-assessment-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  margin-top: 24px;
  margin-bottom: 42px;
  padding: 34px 38px;
  border-color: rgba(255, 106, 0, .4);
}

.blog-registration-cta,
.blog-stories-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  margin-top: 24px;
  margin-bottom: 24px;
  padding: 30px 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #091522;
}

.blog-registration-cta h2,
.blog-stories-cta h2 {
  margin: 6px 0 8px;
  font-size: clamp(24px, 3vw, 36px);
}

.blog-registration-cta p,
.blog-stories-cta p {
  margin: 0;
  color: var(--muted);
}

.blog-assessment-cta h2 {
  margin: 6px 0 8px;
  font-size: clamp(28px, 3vw, 42px);
}

.blog-assessment-cta p {
  margin: 0;
  color: var(--muted);
}

.blog-final-action {
  display: grid;
  gap: 12px;
  min-width: 250px;
  text-align: center;
}

.library-registration-modal[hidden] {
  display: none;
}

.library-registration-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(3, 9, 16, .82);
}

.library-registration-panel {
  position: relative;
  width: min(620px, 100%);
  max-height: min(90vh, 780px);
  overflow: auto;
  padding: 30px;
  border: 1px solid rgba(255, 106, 0, .32);
  border-radius: 6px;
  background: #081421;
  box-shadow: var(--shadow);
}

.library-registration-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #0c1c2f;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
}

.library-registration-form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.library-registration-form label {
  display: grid;
  gap: 7px;
}

.library-registration-form label span {
  color: #cfd9e5;
  font-size: 12px;
  font-weight: 800;
}

.library-registration-form input,
.library-registration-form select {
  min-height: 46px;
  padding: 0 13px;
  border: 1px solid #29405b;
  border-radius: 6px;
  background: #0a1828;
  color: var(--text);
  font: inherit;
}

.library-registration-status {
  min-height: 20px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.lesson-hero {
  padding: 54px 0 36px;
  border-bottom: 1px solid var(--line);
  background: #07111d;
}

.lesson-shell {
  max-width: 960px;
}

.lesson-breadcrumb {
  display: flex;
  gap: 9px;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 12px;
}

.lesson-breadcrumb a {
  color: #cbd5df;
}

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
  color: #bec9d5;
  font-size: 13px;
}

.lesson-layout {
  display: block;
  padding-top: 38px;
  padding-bottom: 30px;
}

.lesson-article {
  display: grid;
  gap: 18px;
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
}

.lesson-highlight,
.lesson-section,
.lesson-author,
.lesson-feedback-card,
.lesson-bottom-actions,
.lesson-aside {
  padding: 28px;
}

.lesson-highlight {
  border-color: rgba(255, 106, 0, .35);
}

.lesson-highlight ul {
  display: grid;
  gap: 9px;
  padding-left: 20px;
}

.lesson-section h2,
.lesson-section h3 {
  margin: 22px 0 10px;
}

.lesson-section > h2:first-child {
  margin-top: 0;
}

.lesson-section p,
.lesson-section li,
.lesson-author p,
.lesson-feedback-card p,
.lesson-bottom-actions p,
.lesson-aside p {
  color: #c4ced9;
  line-height: 1.8;
}

.lesson-section ul,
.lesson-section ol {
  padding-left: 24px;
}

.lesson-author span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.lesson-author h2 {
  margin: 5px 0 8px;
}

.lesson-aside {
  position: sticky;
  top: 90px;
}

.lesson-aside .btn {
  width: 100%;
  margin-top: 18px;
}

.lesson-feedback-card {
  border-color: rgba(255, 106, 0, .35);
}

.lesson-feedback-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.lesson-rating-badge {
  min-width: 132px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 106, 0, .35);
  border-radius: 999px;
  background: rgba(255, 106, 0, .1);
  color: var(--orange-2);
  font-weight: 900;
  text-align: center;
}

.lesson-rating-badge span {
  display: block;
  margin-top: 4px;
  color: #c4ced9;
  font-size: 12px;
  font-weight: 700;
}

.lesson-feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.lesson-feedback-actions button {
  min-height: 44px;
}

.lesson-feedback-actions button.is-selected {
  border-color: var(--orange);
  background: rgba(255, 106, 0, .18);
  color: var(--orange-2);
  box-shadow: 0 0 0 2px rgba(255, 106, 0, .12);
}

.lesson-feedback-actions button:disabled {
  cursor: default;
  opacity: .72;
}

.lesson-feedback-actions button.is-selected:disabled {
  opacity: 1;
}

.lesson-feedback-status {
  min-height: 20px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.lesson-bottom-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}

.lesson-bottom-actions h2 {
  margin: 6px 0 8px;
}

.lesson-action-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  max-width: 560px;
}

.lesson-faq details {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.lesson-faq summary {
  cursor: pointer;
  font-weight: 900;
}

.lesson-faq details div {
  padding-top: 10px;
}

@media (max-width: 980px) {
  .library-grid,
  .related-course-grid,
  .library-featured-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .library-category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .library-discovery {
    grid-template-columns: 1fr;
  }

  .featured-lesson,
  .lesson-layout,
  .lesson-bottom-actions,
  .blog-assessment-cta,
  .blog-registration-cta,
  .blog-stories-cta {
    grid-template-columns: 1fr;
  }

  .lesson-action-buttons {
    justify-content: flex-start;
  }

  .lesson-aside {
    position: static;
  }
}

@media (max-width: 600px) {
  .library-discovery {
    display: none !important;
  }

  .library-controls {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: #29405b #07111d;
  }

  .library-controls::-webkit-scrollbar {
    height: 6px;
  }

  .library-controls::-webkit-scrollbar-track {
    background: #07111d;
  }

  .library-controls::-webkit-scrollbar-thumb {
    background: #29405b;
    border-radius: 999px;
  }

  .library-controls > div {
    flex-wrap: nowrap;
  }

  .library-hero,
  .lesson-hero {
    padding-top: 38px;
  }

  .library-hero h1,
  .lesson-hero h1 {
    font-size: 36px;
  }

  .library-search,
  .library-grid,
  .related-course-grid,
  .library-category-grid,
  .library-featured-grid {
    grid-template-columns: 1fr;
  }

  .library-search > span {
    justify-self: start;
  }

  .featured-lesson,
  .blog-assessment-cta,
  .blog-registration-cta,
  .blog-stories-cta,
  .lesson-highlight,
  .lesson-section,
  .lesson-author,
  .lesson-feedback-card,
  .lesson-bottom-actions,
  .lesson-aside {
    padding: 22px;
  }

  .lesson-feedback-head {
    display: grid;
  }

  .lesson-rating-badge {
    width: 100%;
  }

  .lesson-feedback-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .lesson-feedback-actions button {
    width: 100%;
    min-height: 50px;
  }

  .lesson-action-buttons {
    display: grid;
    width: 100%;
    max-width: none;
  }

  .lesson-action-buttons .btn {
    width: 100%;
  }

  .blog-final-action {
    min-width: 0;
  }
}


.library-advanced-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding-top: 14px;
}
.library-advanced-controls label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}
.library-advanced-controls select {
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #29405b;
  border-radius: 6px;
  background: #0a1828;
  color: var(--text);
  font: inherit;
}
.library-advanced-controls select:focus {
  outline: 2px solid rgba(255, 106, 0, .32);
  border-color: var(--orange);
}
.library-inline-assessment {
  border-color: rgba(255, 106, 0, .48);
  background: linear-gradient(180deg, rgba(255, 106, 0, .12), rgba(9, 21, 34, .96));
}
.library-inline-assessment .btn {
  width: fit-content;
  margin-top: 18px;
}
@media (max-width: 820px) {
  .library-advanced-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .library-advanced-controls { grid-template-columns: 1fr; }
  .library-inline-assessment .btn { width: 100%; }
}