/* SovereignDesk Academy — course player & catalog (extends ../css/styles.css) */

:root {
  --course-accent: var(--teal);
  --course-accent-soft: var(--teal-soft);
  --course-accent-dark: var(--teal-dark);
  --sidebar-width: 300px;
  --academy-gradient: linear-gradient(135deg, #1a2744 0%, #243656 45%, #0f766e 100%);
  --academy-hero-bg: linear-gradient(180deg, #f0fdfa 0%, var(--bg) 42%);
  --content-shadow: 0 1px 3px rgba(26, 39, 68, 0.06), 0 12px 40px rgba(26, 39, 68, 0.07);
  --course-chrome-height: 57px;
}

body.course-player-page {
  --course-chrome-height: 105px;
}

/* Per-track accent colours (catalog + player) */
body[data-course="sd-ai-101"] { --course-accent: #0d9488; --course-accent-soft: #ccfbf1; --course-accent-dark: #0f766e; }
body[data-course="sd-ai-201"] { --course-accent: #2563eb; --course-accent-soft: #dbeafe; --course-accent-dark: #1d4ed8; }
body[data-course="sd-ai-202"] { --course-accent: #059669; --course-accent-soft: #d1fae5; --course-accent-dark: #047857; }
body[data-course="sd-ai-203"] { --course-accent: #6366f1; --course-accent-soft: #e0e7ff; --course-accent-dark: #4f46e5; }
body[data-course="sd-ai-204"] { --course-accent: #ea580c; --course-accent-soft: #ffedd5; --course-accent-dark: #c2410c; }
body[data-course="sd-ai-205"] { --course-accent: #ca8a04; --course-accent-soft: #fef9c3; --course-accent-dark: #a16207; }
body[data-course="sd-ai-206"] { --course-accent: #334155; --course-accent-soft: #e2e8f0; --course-accent-dark: #1e293b; }

/* Academy sub-navigation (below main site header) */
.academy-subnav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.academy-subnav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  padding: 0.55rem 0;
}

.academy-subnav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.academy-subnav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--slate);
  text-decoration: none;
}

.academy-subnav-links a:hover {
  color: var(--teal-dark);
  text-decoration: none;
}

.academy-subnav-links a.nav-active {
  color: var(--teal-dark);
  font-weight: 600;
}

.academy-subnav-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Player toolbar (learn.html) */
.course-toolbar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.course-toolbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.5rem 0;
}

/* —— Header (legacy aliases — prefer site-header) —— */
.academy-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.academy-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1.25rem;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.academy-header .logo-link img {
  height: 36px;
}

.academy-header-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.academy-logo .logo-stack {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.academy-logo .logo-sub {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal);
}

.academy-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.academy-nav a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--slate);
  text-decoration: none;
}

.academy-nav a:hover {
  color: var(--teal-dark);
  text-decoration: none;
}

.academy-nav a.active {
  color: var(--navy);
  font-weight: 600;
}

.academy-crumb {
  font-size: 0.85rem;
  color: var(--slate);
  text-decoration: none;
  font-weight: 500;
}

.academy-crumb:hover {
  color: var(--course-accent-dark);
  text-decoration: none;
}

.course-code-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  background: var(--course-accent-soft);
  color: var(--course-accent-dark);
  border: 1px solid color-mix(in srgb, var(--course-accent) 25%, transparent);
}

.progress-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

.progress-pill-bar {
  width: 48px;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-pill-fill {
  height: 100%;
  background: var(--course-accent);
  border-radius: 3px;
  transition: width 0.35s ease;
}

/* Legacy header alias */
.course-header.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
}

/* —— Player layout —— */
.course-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: calc(100vh - var(--course-chrome-height));
}

.course-sidebar {
  background: linear-gradient(180deg, #141f36 0%, var(--navy) 55%, #1a3048 100%);
  color: #e2e8f0;
  padding: 0;
  overflow-y: auto;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  position: sticky;
  top: var(--course-chrome-height);
  height: calc(100vh - var(--course-chrome-height));
}

.sidebar-top {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.12);
}

.course-sidebar .course-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 0.35rem;
  line-height: 1.35;
}

.sidebar-course-code {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--course-accent);
}

#sidebar-nav {
  padding: 0.75rem 0 1rem;
}

.course-sidebar h2 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
  padding: 1rem 1.25rem 0.5rem;
  margin: 0;
  font-weight: 600;
}

.module-block {
  margin-bottom: 0.15rem;
}

.module-block.collapsed .module-lessons {
  display: none;
}

.module-toggle {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  width: calc(100% - 1rem);
  margin: 0 0.5rem;
  padding: 0.55rem 0.65rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #cbd5e1;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.module-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #f1f5f9;
}

.module-toggle[aria-expanded="true"] {
  color: #e2e8f0;
}

.module-toggle-text {
  flex: 1;
  line-height: 1.35;
}

.module-toggle-meta {
  flex-shrink: 0;
  font-size: 0.65rem;
  font-weight: 700;
  color: #64748b;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.module-toggle[aria-expanded="true"] .module-toggle-meta {
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 18%, transparent);
}

.module-chevron {
  flex-shrink: 0;
  width: 0.45rem;
  height: 0.45rem;
  margin-top: 0.35rem;
  border-right: 2px solid #94a3b8;
  border-bottom: 2px solid #94a3b8;
  transform: rotate(45deg);
  transition: transform 0.2s;
}

.module-block.collapsed .module-chevron {
  transform: rotate(-45deg);
  margin-top: 0.45rem;
}

.module-lessons {
  padding-bottom: 0.35rem;
}

.sidebar-controls {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.sidebar-controls button {
  flex: 1;
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: #94a3b8;
  cursor: pointer;
}

.sidebar-controls button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
}

.module-label {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.55rem 1.25rem 0.35rem;
  color: #94a3b8;
  line-height: 1.35;
}

.module-num {
  flex-shrink: 0;
  font-size: 0.65rem;
  font-weight: 700;
  width: 1.35rem;
  height: 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: #cbd5e1;
}

.lesson-link {
  display: block;
  padding: 0.42rem 1.25rem 0.42rem 1.25rem;
  margin: 0 0.5rem;
  font-size: 0.86rem;
  color: #94a3b8;
  text-decoration: none;
  border-left: 3px solid transparent;
  border-radius: 0 8px 8px 0;
  transition: background 0.15s, color 0.15s;
}

.lesson-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #f1f5f9;
  text-decoration: none;
}

.lesson-link.active {
  background: color-mix(in srgb, var(--course-accent) 22%, transparent);
  color: #f0fdfa;
  border-left-color: var(--course-accent);
}

.lesson-link.done::before {
  content: "✓";
  display: inline-block;
  width: 1rem;
  margin-right: 0.25rem;
  color: var(--course-accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.lesson-link.locked {
  opacity: 0.4;
  pointer-events: none;
}

#sidebar-soon {
  padding: 0 0.5rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 0.5rem;
}

/* —— Main lesson area —— */
.course-main {
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 3rem;
  background: linear-gradient(180deg, #f1f5f9 0%, var(--bg) 120px);
}

.lesson-card {
  max-width: 44rem;
  margin: 0 auto;
}

.course-progress-bar {
  height: 3px;
  background: transparent;
  margin-bottom: 1.25rem;
  overflow: hidden;
  border-radius: 2px;
}

.course-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--course-accent-dark), var(--course-accent));
  transition: width 0.4s ease;
  border-radius: 2px;
}

.lesson-header {
  margin-bottom: 1.5rem;
}

.lesson-header h1 {
  margin: 0 0 0.5rem;
  font-family: inherit;
  font-size: clamp(1.65rem, 3.5vw, 2.15rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--navy);
  letter-spacing: -0.01em;
}

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  font-size: 0.82rem;
  color: var(--slate);
  margin: 0;
}

.lesson-meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-weight: 500;
}

.lesson-meta-tag.done {
  background: var(--course-accent-soft);
  border-color: color-mix(in srgb, var(--course-accent) 30%, transparent);
  color: var(--course-accent-dark);
}

.lesson-body-wrap {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--content-shadow);
}

.lesson-video {
  aspect-ratio: 16/9;
  background: linear-gradient(145deg, var(--navy) 0%, #243656 100%);
  border-radius: 12px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 0.88rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.lesson-video-placeholder {
  background: linear-gradient(145deg, #f8fafc, #e2e8f0);
  color: var(--slate);
  border: 1px dashed var(--border);
}

.lesson-video-placeholder code {
  font-size: 0.8rem;
  background: rgba(0, 0, 0, 0.05);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.lesson-video iframe,
.lesson-video video {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  background: #000;
}

.lesson-body {
  line-height: 1.75;
  font-size: 1rem;
  color: #334155;
}

.lesson-body h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.lesson-body h2:first-child {
  margin-top: 0;
  border-top: none;
  padding-top: 0;
}

.lesson-body h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  margin-top: 1.25rem;
}

.lesson-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 1.25rem 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.lesson-body th,
.lesson-body td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.85rem;
  text-align: left;
}

.lesson-body th {
  background: var(--course-accent-soft);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.82rem;
}

.lesson-body tr:nth-child(even) td {
  background: #fafbfc;
}

.lesson-body ul,
.lesson-body ol {
  padding-left: 1.35rem;
  margin: 0.75rem 0;
}

.lesson-body li {
  margin: 0.35rem 0;
}

.lesson-body blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--course-accent);
  background: var(--course-accent-soft);
  color: var(--navy);
  border-radius: 0 10px 10px 0;
  font-size: 0.95rem;
}

.lesson-body code {
  font-size: 0.85em;
  background: #f1f5f9;
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
}

.lesson-body pre {
  background: var(--navy);
  color: #e2e8f0;
  padding: 1rem 1.15rem;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.5;
}

.lesson-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.lesson-body a {
  color: var(--course-accent-dark);
  font-weight: 500;
}

.lesson-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.lesson-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  gap: 0.75rem;
  flex-wrap: wrap;
  max-width: 44rem;
  margin-left: auto;
  margin-right: auto;
}

.lesson-nav .btn-primary {
  background: var(--course-accent);
}

.lesson-nav .btn-primary:hover {
  background: var(--course-accent-dark);
}

.sidebar-toggle {
  display: none;
  background: var(--navy);
  color: white;
  border: none;
  padding: 0.65rem 1rem;
  width: 100%;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}

/* —— Landing (SD-AI-101) —— */
.academy-hero {
  padding: clamp(2rem, 5vw, 3rem) 0 clamp(1.5rem, 3vw, 2.5rem);
  text-align: center;
}

.academy-hero h1 {
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
  color: var(--navy);
  letter-spacing: -0.03em;
}

.academy-hero-lead {
  max-width: 36rem;
  margin: 0 auto 1.5rem;
  color: var(--slate);
  font-size: 1.08rem;
  line-height: 1.65;
}

.academy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--teal-soft);
  color: var(--teal-dark);
  border: 1px solid color-mix(in srgb, var(--teal) 35%, transparent);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.12);
}

.academy-features {
  max-width: 28rem;
  margin: 1.75rem auto 0;
  text-align: left;
  list-style: none;
  padding: 0;
}

.academy-features li {
  padding: 0.45rem 0 0.45rem 1.75rem;
  position: relative;
  color: var(--navy);
  font-size: 0.95rem;
}

.academy-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--teal);
  font-weight: 700;
}

.enrol-section {
  padding-bottom: 3.5rem;
}

.enrol-card {
  max-width: 26rem;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--content-shadow);
}

.enrol-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

.enrol-card .enrol-sub {
  color: var(--slate);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

.enrol-card .form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
}

.enrol-card input,
.enrol-card select {
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.enrol-card input:focus,
.enrol-card select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.enrol-footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--slate);
  margin: 1rem 0 0;
}

.academy-footnote {
  text-align: center;
  color: var(--slate);
  font-size: 0.88rem;
  margin-top: 2rem;
}

/* —— Catalog —— */
.catalog-hero,
.purchase-hero {
  /* Uses .page-hero from styles.css when combined in HTML */
}

.catalog-hero .catalog-intro,
.purchase-hero .catalog-intro {
  color: #cbd5e1;
  margin: 0;
  max-width: 36rem;
  font-size: 1.05rem;
  line-height: 1.6;
}

.purchase-crumb {
  font-size: 0.85rem;
  margin: 0 0 0.75rem;
}

.purchase-crumb a {
  color: #94a3b8;
  text-decoration: none;
}

.purchase-crumb a:hover {
  color: var(--teal-soft);
  text-decoration: none;
}

.catalog-wrap {
  padding: 2rem 1rem 4rem;
  max-width: 56rem;
}

.catalog-section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 2rem 0 1.25rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
}

.catalog-section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.catalog-banner {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
  color: var(--navy);
  line-height: 1.5;
}

.catalog-banner-warn {
  background: #fff7ed;
  border-color: #fed7aa;
}

.catalog-banner-info {
  background: #eff6ff;
  border-color: #bfdbfe;
}

.catalog-banner a {
  font-weight: 600;
}

.catalog-lock-note {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  color: var(--slate);
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
}

.catalog-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.catalog-card-featured {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem;
}

.catalog-card-featured .catalog-card-body {
  flex: 1 1 20rem;
}

.catalog-card-featured .catalog-actions {
  flex: 0 0 auto;
}

.catalog-progress {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  margin-top: 0.75rem;
  overflow: hidden;
}

.catalog-progress-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 3px;
  transition: width 0.3s;
}

.catalog-tier2-header {
  margin: 2rem 0 1rem;
}

.catalog-tier2-sub {
  color: var(--slate);
  font-size: 0.92rem;
  margin: 0.35rem 0 0;
}

.catalog-recommend {
  background: var(--teal-soft);
  border: 1px solid color-mix(in srgb, var(--teal) 25%, white);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: var(--navy);
}

.catalog-grid-tier2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.catalog-card-paywall {
  border-left-style: dashed;
}

.catalog-meta li.owned {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: transparent;
}

.btn-locked {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
}

/* Purchase page */
.purchase-hero {
  padding-bottom: 1.5rem;
}

.purchase-crumb {
  font-size: 0.85rem;
  margin: 0 0 0.5rem;
}

.purchase-crumb a {
  color: var(--slate);
  text-decoration: none;
}

.purchase-wrap {
  max-width: 36rem;
  padding-bottom: 3rem;
}

.purchase-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--content-shadow);
}

.purchase-lead {
  color: var(--slate);
  line-height: 1.55;
  margin: 0.5rem 0 1rem;
}

.purchase-price {
  margin: 1.25rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.purchase-price-amount {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  font-family: inherit;
}

.purchase-price-note {
  font-size: 0.85rem;
  color: var(--slate);
}

.purchase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.purchase-note {
  font-size: 0.82rem;
  color: var(--slate);
  margin: 0;
}

.purchase-unlock h2 {
  font-size: 1.1rem;
  margin: 0 0 0.35rem;
}

.unlock-form {
  margin-top: 1rem;
}

.unlock-error {
  color: #b91c1c;
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

.catalog-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1.5rem 1.5rem 1.65rem;
  background: var(--white);
  box-shadow: var(--content-shadow);
  border-left: 4px solid var(--card-accent, var(--teal));
  transition: transform 0.2s, box-shadow 0.2s;
}

.catalog-card:hover:not(.catalog-card-locked) {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(26, 39, 68, 0.1);
}

.catalog-card-tier1 {
  border-left-width: 5px;
  border-left-color: var(--teal);
  background: linear-gradient(135deg, #fff 0%, #f0fdfa 100%);
}

.catalog-card-locked {
  opacity: 0.65;
  filter: grayscale(0.15);
}

.catalog-card-locked:hover {
  transform: none;
}

.catalog-card-highlight {
  outline: 2px solid var(--card-accent, var(--teal));
  outline-offset: 2px;
}

.catalog-card[data-industry="sap"] { --card-accent: #2563eb; }
.catalog-card[data-industry="healthcare"] { --card-accent: #059669; }
.catalog-card[data-industry="legal"] { --card-accent: #6366f1; }
.catalog-card[data-industry="engineering"] { --card-accent: #ea580c; }
.catalog-card[data-industry="construction"] { --card-accent: #ca8a04; }
.catalog-card[data-industry="defence"] { --card-accent: #475569; }

.catalog-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--card-accent, var(--teal-dark));
  background: color-mix(in srgb, var(--card-accent, var(--teal)) 12%, white);
  padding: 0.28rem 0.7rem;
  border-radius: 6px;
  margin-bottom: 0.6rem;
}

.catalog-card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
}

.catalog-card p {
  color: var(--slate);
  font-size: 0.92rem;
  margin: 0 0 1rem;
  line-height: 1.55;
}

.catalog-meta {
  list-style: none;
  padding: 0;
  margin: 0 0 1.15rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.catalog-meta li {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--slate);
  background: var(--bg);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.catalog-meta li.certified {
  background: var(--course-accent-soft, var(--teal-soft));
  color: var(--course-accent-dark, var(--teal-dark));
  border-color: transparent;
}

.catalog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.catalog-actions .btn-primary {
  background: var(--card-accent, var(--teal));
}

.catalog-actions .btn-primary:hover {
  background: color-mix(in srgb, var(--card-accent, var(--teal)) 85%, black);
}

/* —— Assessment —— */
.assessment-wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

.assessment-wrap h1 {
  font-family: inherit;
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.assessment-intro-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--content-shadow);
}

.lead {
  color: var(--slate);
  line-height: 1.6;
}

.q-block {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem 1.35rem;
  margin-bottom: 1rem;
  background: var(--white);
  box-shadow: 0 1px 4px rgba(26, 39, 68, 0.04);
  border-left: 3px solid var(--course-accent, var(--teal));
}

.q-block legend {
  font-weight: 600;
  margin-bottom: 0.65rem;
  color: var(--navy);
  line-height: 1.45;
  padding: 0;
}

.q-opt {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 0.55rem 0;
  cursor: pointer;
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  transition: background 0.15s;
  line-height: 1.45;
  font-size: 0.92rem;
}

.q-opt:hover {
  background: var(--bg);
}

.q-opt input {
  margin-top: 0.2rem;
  accent-color: var(--course-accent, var(--teal));
}

.result-card {
  padding: 2.25rem 1.5rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--content-shadow);
}

.result-card.pass {
  background: linear-gradient(180deg, #f0fdfa, #fff);
  border: 2px solid var(--teal);
}

.result-card.fail {
  background: linear-gradient(180deg, #fef2f2, #fff);
  border: 2px solid #f87171;
}

.course-player-footer {
  padding: 1.25rem 0;
}

.course-player-footer .footer-bottom a {
  color: #94a3b8;
  text-decoration: none;
}

.course-player-footer .footer-bottom a:hover {
  color: var(--teal-soft);
}

.academy-footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.8rem;
  color: var(--slate);
  border-top: 1px solid var(--border);
  background: var(--white);
}

.academy-footer a {
  color: var(--teal-dark);
  font-weight: 500;
  margin: 0 0.35rem;
}

.academy-footer-brand {
  font-weight: 600;
  color: var(--navy);
}

/* —— Responsive —— */
@media (max-width: 900px) {
  .course-layout {
    grid-template-columns: 1fr;
  }

  .course-sidebar {
    display: none;
    position: fixed;
    inset: var(--course-chrome-height) 0 0 0;
    z-index: 90;
    max-width: min(320px, 88vw);
    height: auto;
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.25);
  }

  .course-sidebar.open {
    display: block;
  }

  .sidebar-toggle {
    display: block;
  }

  .course-main {
    padding: 1.25rem 1rem 2.5rem;
  }

  .academy-header-inner {
    padding: 0.6rem 1rem;
  }

  .academy-subnav-links {
    gap: 0.85rem;
  }

  .academy-subnav-meta {
    width: 100%;
  }

  .progress-pill {
    display: none;
  }
}

@media print {
  .course-sidebar,
  .lesson-nav,
  .academy-header,
  .course-header,
  .sidebar-toggle,
  .academy-footer {
    display: none !important;
  }

  .course-main,
  .lesson-card {
    max-width: none;
  }

  .lesson-body-wrap {
    box-shadow: none;
    border: none;
  }
}