html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

:root {
    --admin-bg: #f5f7fb;
    --admin-primary: #2563eb;
    --admin-border: #dbe3ef;
    --admin-text: #111827;
    --admin-muted: #6b7280;
}

.public-body{background:#f6f7fb;color:#172033}.public-nav{background:#fff;border-bottom:1px solid #e1e5ed}.public-wrap{max-width:1180px;margin:auto;padding-inline:24px}.public-nav .public-wrap{min-height:72px;display:flex;align-items:center;gap:32px}.public-brand{font-size:20px;font-weight:800;color:#1e3a8a;text-decoration:none}.public-nav nav a{color:#344054;text-decoration:none;font-weight:600}.catalog-hero,.course-detail-head{background:#172554;color:#fff;padding:72px 0}.catalog-eyebrow{color:#f6c453;font-weight:700;text-transform:uppercase;font-size:12px}.catalog-hero h1,.course-detail-head h1{font-size:42px;margin:10px 0}.catalog-hero p{max-width:640px;color:#d9e2f6;font-size:18px}.catalog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}.public-course-card{background:#fff;border:1px solid #e1e5ed;border-radius:8px;overflow:hidden}.course-card-top{background:#e9efff;color:#1e3a8a;padding:18px;display:flex;justify-content:space-between;min-height:78px}.public-course-card h2{font-size:20px}.back-link{color:#dbeafe;display:inline-block;margin-bottom:18px}.feature-grid{display:grid;gap:10px}.feature-row{background:#fff;border:1px solid #e1e5ed;border-radius:8px;padding:18px;display:flex;justify-content:space-between;gap:18px}.feature-row small{display:block;color:#667085;margin-top:4px}.purchase-panel{background:#fff;border:1px solid #e1e5ed;border-radius:8px;padding:24px;position:sticky;top:24px}@media(max-width:700px){.catalog-hero h1,.course-detail-head h1{font-size:32px}.public-nav .public-wrap{gap:14px}.feature-row{align-items:flex-start}}
.landing-hero{min-height:560px;display:flex;align-items:center;color:#fff;background:linear-gradient(90deg,rgba(15,23,42,.92),rgba(15,23,42,.58)),url('../img/bg4.png') center/cover}.landing-copy{max-width:700px;padding:86px 0}.landing-copy h1{font-size:56px;line-height:1.05;margin:14px 0 18px;max-width:12ch}.landing-copy p{font-size:19px;line-height:1.65;color:#e2e8f0;max-width:620px}.landing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.landing-grid article{border-top:4px solid #f6c453;background:#fff;padding:28px;min-height:190px}.landing-grid h3{font-size:20px}.landing-grid p{color:#667085;margin:10px 0 0}.landing-systems{background:#e9efff;padding:54px 0}.landing-systems .public-wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}.landing-systems h2{max-width:600px;margin:10px 0 0;font-size:32px}@media(max-width:700px){.landing-copy h1{font-size:40px}.landing-grid{grid-template-columns:1fr}.landing-systems .public-wrap{align-items:flex-start;flex-direction:column}.public-nav nav{display:none}}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--admin-bg) url("../img/bg4.png") center / cover fixed no-repeat;
  color: var(--admin-text);
}

.keyword-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.keyword-bg span {
  position: absolute;
  color: rgba(37, 99, 235, 0.075);
  font-size: clamp(1.9rem, 1.8vw, 3.1rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  text-transform: uppercase;
  white-space: nowrap;
  user-select: none;
  animation: keyword-float 22s ease-in-out infinite alternate;
  will-change: transform;
}

.keyword-bg img {
  display: block;
  width: clamp(58px, 8vw, 118px);
  height: auto;
  opacity: 0.3;
  filter: saturate(1.08);
}

.keyword-bg span:nth-child(1) {
  top: 11%;
  left: 9%;
  animation-duration: 18s;
}

.keyword-bg span:nth-child(2) {
  top: 18%;
  left: 27%;
  animation-name: keyword-drift;
  animation-duration: 24s;
}

.keyword-bg span:nth-child(3) {
  top: 10%;
  left: 51%;
  animation-delay: -8s;
}

.keyword-bg span:nth-child(4) {
  top: 18%;
  left: 76%;
  animation-name: keyword-drift;
  animation-delay: -13s;
  animation-duration: 26s;
}

.keyword-bg span:nth-child(5) {
  top: 34%;
  left: 15%;
  animation-delay: -5s;
  animation-duration: 20s;
}

.keyword-bg span:nth-child(6) {
  top: 35%;
  left: 36%;
  animation-delay: -16s;
  animation-duration: 28s;
}

.keyword-bg span:nth-child(7) {
  top: 38%;
  left: 61%;
  animation-name: keyword-drift;
  animation-delay: -10s;
  animation-duration: 21s;
}

.keyword-bg span:nth-child(8) {
  top: 30%;
  left: 83%;
  animation-delay: -3s;
  animation-duration: 25s;
}

.keyword-bg span:nth-child(9) {
  top: 55%;
  left: 7%;
  animation-name: keyword-drift;
  animation-delay: -19s;
  animation-duration: 27s;
}

.keyword-bg span:nth-child(10) {
  top: 58%;
  left: 25%;
  animation-delay: -6s;
  animation-duration: 23s;
}

.keyword-bg span:nth-child(11) {
  top: 57%;
  left: 47%;
  animation-name: keyword-drift;
  animation-delay: -14s;
  animation-duration: 29s;
}

.keyword-bg span:nth-child(12) {
  top: 61%;
  left: 70%;
  animation-delay: -22s;
  animation-duration: 31s;
}

.keyword-bg span:nth-child(13) {
  top: 77%;
  left: 12%;
  animation-name: keyword-drift;
  animation-delay: -11s;
  animation-duration: 27s;
}

.keyword-bg span:nth-child(14) {
  top: 76%;
  left: 34%;
  animation-delay: -18s;
  animation-duration: 30s;
}

.keyword-bg span:nth-child(15) {
  top: 76%;
  left: 57%;
  animation-name: keyword-drift;
  animation-delay: -7s;
  animation-duration: 25s;
}

.keyword-bg span:nth-child(16) {
  top: 83%;
  left: 76%;
  animation-delay: -15s;
  animation-duration: 28s;
}

.keyword-bg span:nth-child(17) {
  top: 50%;
  left: 87%;
  animation-name: keyword-drift;
  animation-delay: -23s;
  animation-duration: 32s;
}

@keyframes keyword-float {
  from {
    transform: translate3d(-52px, 44px, 0) rotate(-10deg);
  }

  to {
    transform: translate3d(96px, -78px, 0) rotate(12deg);
  }
}

@keyframes keyword-drift {
  from {
    transform: translate3d(84px, -58px, 0) rotate(10deg);
  }

  to {
    transform: translate3d(-76px, 92px, 0) rotate(-13deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .keyword-bg span {
    animation: none;
  }
}

a {
  text-decoration: none;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16);
}

.admin-shell {
  min-height: 100vh;
  position: relative;
}

.brand-mark {
  min-width: 0;
  color: var(--admin-text);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark:hover {
  color: var(--admin-primary);
}

.brand-logo {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: #2563eb;
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
}

.brand-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-title {
  font-weight: 800;
  letter-spacing: 0;
}

.brand-subtitle {
  color: var(--admin-muted);
  font-size: 0.82rem;
  margin-top: 4px;
}

.top-nav-icon svg,
.icon-button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.admin-main {
  min-width: 0;
  width: 100%;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  min-height: 72px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
}

.topbar-left,
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.topbar-left {
  flex: 0 0 auto;
}

.top-nav {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.top-nav-mobile {
  display: none;
}

.top-nav-link {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #1f2937;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.top-nav-link:hover,
.top-nav-link:focus {
  color: #111827;
  background: rgba(37, 99, 235, 0.08);
}

.top-nav-link.active {
  color: var(--admin-primary);
  background: #e0ecff;
}

.top-nav-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 20px;
}

.dropdown-item.active,
.dropdown-item:active {
  color: #fff;
  background-color: var(--admin-primary);
}

.topbar-title {
  font-weight: 800;
  font-size: 1.05rem;
}

.topbar-subtitle {
  color: var(--admin-muted);
  font-size: 0.82rem;
  margin-top: 2px;
}

.icon-button {
  width: 42px;
  height: 42px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: #fff;
  color: #374151;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-button:hover {
  background: #f9fafb;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border: 1px solid var(--admin-border);
  border-radius: 999px;
  background: #fff;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #e0ecff;
  color: #1d4ed8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.user-name {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #374151;
  font-weight: 600;
  font-size: 0.9rem;
}

.admin-content {
  padding: 24px;
}


.permission-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.permission-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: #fff;
}

.permission-item .form-check-input {
  margin-top: 3px;
}

.permission-name,
.permission-group {
  display: block;
}

.permission-name {
  font-weight: 700;
}

.permission-group {
  color: var(--admin-muted);
  font-size: 0.82rem;
}

.form-control,
.form-select {
  border-color: #cfd8e3;
}

.modal-content,
.card,
.border.rounded,
.list-group-item {
  border-color: var(--admin-border) !important;
}

.nav-tabs .nav-link {
  color: #4b5563;
  font-weight: 700;
}

.nav-tabs .nav-link.active {
  color: var(--admin-primary);
}

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

.video-filter-button {
  height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.video-filter-button svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.video-filter-summary {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.video-filter-tree {
  max-height: 48vh;
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: #f8fafc;
}

.video-filter-tree-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding-right: 8px;
  border-radius: 6px;
}

.video-filter-tree-row:hover {
  background: #fff;
}

.video-filter-tree-toggle,
.video-filter-tree-spacer {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
}

.video-filter-tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-weight: 800;
}

.video-filter-tree-check {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.video-filter-tree-check .form-check-input {
  margin-top: 3px;
  flex-shrink: 0;
}

.video-view-toggle .btn {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.video-view-toggle svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.video-view-toggle .btn.active {
  color: #fff;
  background: var(--admin-primary);
  border-color: var(--admin-primary);
}

.video-row {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 12px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--admin-border);
  border-radius: 10px;
}

.video-thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  background: #111827;
  color: #fff;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: linear-gradient(135deg, #111827, #374151);
}

.video-title {
  margin: 0 0 6px;
  font-weight: 800;
  line-height: 1.25;
}

.video-info {
  min-width: 0;
}

.video-info .text-muted {
  overflow-wrap: anywhere;
}

.video-info .badge {
  flex-shrink: 0;
}

.video-table-wrap {
  display: none;
}

.video-view-six .video-list {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.video-view-six .video-row {
  gap: 8px;
  padding: 8px;
}

.video-view-six .video-title {
  font-size: 0.86rem;
}

.video-view-six .video-info .text-muted {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.video-view-six .video-info .badge {
  font-size: 0.68rem;
}

.video-view-six .video-actions {
  flex-wrap: wrap;
}

.video-view-table .video-list {
  display: none;
}

.video-view-table .video-table-wrap {
  display: block;
}

.video-table-thumb {
  width: 86px;
  aspect-ratio: 16 / 9;
  flex: 0 0 86px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 6px;
  background: #111827;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
}

.video-table-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.summary-sections {
  display: grid;
  gap: 22px;
}

.summary-section {
  padding: 16px;
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  background: #fff;
}

.summary-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.summary-list {
  display: grid;
  gap: 14px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.summary-card {
  padding: 14px;
  background: #fff;
  border: 1px solid var(--admin-border);
  border-radius: 10px;
}

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

.summary-title {
  margin: 8px 0 0;
  font-weight: 800;
}

.summary-content {
  color: #1f2937;
}

.summary-content > :last-child {
  margin-bottom: 0;
}

.summary-preview {
  margin: 0;
  color: #4b5563;
  line-height: 1.55;
}

.summary-video {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  background: #111827;
  color: #fff;
}

.summary-video img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.summary-video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  background: linear-gradient(135deg, #111827, #374151);
}

.summary-document {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: #f9fafb;
}

.past-exam-list {
  display: grid;
  gap: 18px;
}

.past-exam-card {
  padding: 16px;
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  background: #fff;
}

.past-exam-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.past-question-body {
  width: 100%;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--admin-border);
}

.past-question-toggle,
.past-question-spacer {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
}

.past-question-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-weight: 800;
}

.past-question-content,
.past-answer-content {
  color: #1f2937;
  overflow-wrap: anywhere;
}

.past-question-content > :last-child,
.past-answer-content > :last-child {
  margin-bottom: 0;
}

.past-answer-list {
  display: grid;
  gap: 10px;
}

.past-answer-row {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: #f9fafb;
}

.past-answer-row.correct {
  border-color: rgba(25, 135, 84, 0.35);
  background: #f0fdf4;
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.btn-icon.btn-sm {
  width: 2rem;
  height: 2rem;
}

.btn-icon svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: currentColor;
  flex: 0 0 auto;
}

.btn-icon.btn-sm svg {
  width: 1rem;
  height: 1rem;
}

@media (max-width: 1399.98px) {
  .video-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1199.98px) {
  .video-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 991.98px) {
  .admin-topbar {
    padding: 0 16px;
  }

  .top-nav-desktop {
    display: none;
  }

  .top-nav-mobile {
    display: block;
  }

  .admin-content {
    padding: 16px;
  }

  .user-name {
    display: none;
  }

  .video-list {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .summary-section-header,
  .summary-card-header,
  .summary-document,
  .past-exam-header {
    align-items: stretch;
    flex-direction: column;
  }

  .permission-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575.98px) {
  .admin-topbar {
    min-height: 64px;
    gap: 10px;
    padding: 10px 12px;
  }

  .brand-logo {
    width: 36px;
    height: 36px;
  }

  .brand-subtitle {
    display: none;
  }

  .topbar-actions {
    gap: 8px;
  }
}

/* Public marketing and catalog experience */
.public-body {
  --public-ink: #14162b;
  --public-brand: #2b2f77;
  --public-brand-2: #3a40a8;
  --public-accent: #e8a13c;
  --public-cream: #f6f3ec;
  --public-paper: #fff;
  --public-muted: #6a6c82;
  --public-line: #e7e3d8;
  background: var(--public-cream);
  color: var(--public-ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.public-body h1,
.public-body h2,
.public-body h3,
.public-brand {
  font-family: Georgia, "Times New Roman", serif;
}

.public-wrap { max-width: 1200px; padding-inline: 28px; }
.public-nav { position: sticky; top: 0; z-index: 1030; background: rgba(246, 243, 236, .92); border-bottom: 1px solid var(--public-line); backdrop-filter: blur(12px); }
.public-nav .public-wrap { min-height: 72px; gap: 24px; }
.public-brand { display: inline-flex; align-items: center; gap: 9px; color: var(--public-ink); font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.public-brand:hover { color: var(--public-brand); }
.public-brand span { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 9px; background: var(--public-brand); color: var(--public-accent); font-family: inherit; font-size: 18px; }
.public-nav nav { display: flex; align-items: center; gap: 5px; margin-left: 12px; }
.public-nav nav a { padding: 10px 14px; border-radius: 10px; color: var(--public-ink); font-size: 14px; font-weight: 700; opacity: .8; }
.public-nav nav a:hover { background: rgba(20, 22, 43, .06); color: var(--public-ink); opacity: 1; }
.public-login-link { border: 0; background: transparent; color: var(--public-ink); font-size: 14px; font-weight: 700; text-decoration: none; }
.public-nav-cta, .public-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; font-size: 14px; font-weight: 800; text-decoration: none; transition: transform .18s ease, background-color .18s ease; }
.public-nav-cta { padding: 10px 16px; background: var(--public-brand); color: #fff; }
.public-nav-cta:hover, .public-button-primary:hover { background: var(--public-brand-2); color: #fff; transform: translateY(-1px); }
.public-user { color: var(--public-muted); }

.marketing-hero { position: relative; overflow: hidden; padding: 78px 0 68px; background: radial-gradient(circle at 88% 20%, rgba(232, 161, 60, .25), transparent 22rem), radial-gradient(circle at 58% 85%, rgba(58, 64, 168, .14), transparent 25rem), var(--public-cream); }
.marketing-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 54px; }
.public-pill { display: inline-flex; border: 1px solid var(--public-line); border-radius: 999px; padding: 7px 15px; background: #fff; color: var(--public-brand); font-size: 13px; font-weight: 800; }
.marketing-hero h1, .public-catalog-hero h1 { margin: 21px 0 0; font-size: clamp(42px, 5.4vw, 66px); font-weight: 600; letter-spacing: -.035em; line-height: 1.03; }
.marketing-hero h1 em, .public-catalog-hero h1 em { color: var(--public-brand); font-style: italic; }
.marketing-hero p { max-width: 35em; margin: 20px 0 0; color: var(--public-muted); font-size: 18px; line-height: 1.7; }
.public-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.public-button { padding: 14px 24px; }
.public-button-primary { background: var(--public-brand); color: #fff; }
.public-button-ghost { border: 1.5px solid var(--public-line); background: transparent; color: var(--public-ink); }
.public-button-ghost:hover { border-color: var(--public-ink); color: var(--public-ink); }
.public-button-danger { border: 1.5px solid rgba(185,28,28,.28); background: #fff1f1; color: #991b1b; }
.public-button-danger:hover { background: #fee2e2; color: #7f1d1d; transform: translateY(-1px); }
.public-button-accent { background: var(--public-accent); color: #3a2a08; }
.public-button-accent:hover { color: #3a2a08; filter: brightness(1.05); transform: translateY(-1px); }
.public-proof { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 25px; color: var(--public-muted); font-size: 13px; font-weight: 700; }
.hero-preview { padding: 10px; border: 1px solid var(--public-line); border-radius: 22px; background: #fff; box-shadow: 0 24px 70px rgba(20, 22, 43, .16); transform: rotate(1.5deg); }
.hero-preview-bar { display: flex; align-items: center; gap: 6px; padding: 10px 13px; }
.hero-preview-bar i { width: 10px; height: 10px; border-radius: 50%; background: #e8a13c; }.hero-preview-bar i:nth-child(2) { background: #e5c763; }.hero-preview-bar i:nth-child(3) { background: #6ebc96; }.hero-preview-bar span { margin-left: auto; color: var(--public-muted); font-size: 12px; font-weight: 700; }
.hero-preview-body { padding: 21px; border: 1px solid #eeeae0; border-radius: 16px; background: #f6f3ec; }.preview-label { color: var(--public-brand); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.preview-course { margin-top: 14px; padding: 15px; border: 1px solid #eeeae0; border-radius: 12px; background: #fff; }.preview-course b, .preview-course small, .preview-course em { display: block; }.preview-course b { font-size: 14px; }.preview-course small, .preview-course em { margin-top: 4px; color: var(--public-muted); font-size: 12px; }.preview-course em { font-style: normal; }.preview-course > div { height: 7px; overflow: hidden; margin-top: 10px; border-radius: 999px; background: #e7e3d8; }.preview-course > div span { display: block; height: 100%; border-radius: inherit; background: #1e9e73; }

.public-board-strip { padding: 40px 0; background: #fff; border-block: 1px solid var(--public-line); text-align: center; }.public-board-strip p { margin: 0 0 17px; color: var(--public-muted); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }.public-board-strip div div { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }.public-board-strip span { border: 1px solid var(--public-line); border-radius: 10px; padding: 10px 17px; background: var(--public-paper); font-family: Georgia, serif; font-weight: 700; }
.public-section { padding: 82px 0; }.public-section-soft { background: #fff; border-block: 1px solid var(--public-line); }.public-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 32px; }.public-section-heading.centered { justify-content: center; text-align: center; }.public-eyebrow { color: #a36a12; font-size: 12px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }.public-section-heading h2 { max-width: 650px; margin: 9px 0 0; font-size: clamp(30px, 3.5vw, 44px); letter-spacing: -.03em; line-height: 1.08; }.public-section-heading p { max-width: 580px; margin: 13px 0 0; color: var(--public-muted); }.public-text-link { color: var(--public-brand); font-size: 14px; font-weight: 800; text-decoration: none; white-space: nowrap; }.public-text-link:hover { color: var(--public-brand-2); }
.public-course-grid, .catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }.marketing-course-card, .public-course-card { min-height: 272px; border: 1px solid var(--public-line); border-radius: 16px; background: #fff; padding: 23px; box-shadow: 0 1px 2px rgba(20,22,43,.04); transition: transform .18s ease, box-shadow .18s ease; }.marketing-course-card:hover, .public-course-card:hover { box-shadow: 0 16px 32px rgba(20,22,43,.09); transform: translateY(-3px); }.marketing-course-icon { display: grid; width: 48px; height: 48px; place-items: center; border-radius: 12px; background: #fbedcf; color: var(--public-brand); font: 26px Georgia, serif; }.marketing-course-meta, .course-card-top { display: flex; justify-content: space-between; gap: 15px; margin-top: 19px; color: var(--public-muted); font-size: 12px; font-weight: 700; }.marketing-course-meta strong, .course-card-top strong { color: var(--public-brand); }.marketing-course-card h3 { margin: 16px 0 0; font-size: 22px; }.marketing-course-card p { min-height: 49px; margin: 10px 0 18px; color: var(--public-muted); font-size: 14px; }.marketing-course-card a { color: var(--public-brand); font-size: 14px; font-weight: 800; text-decoration: none; }
.public-step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }.public-step-grid article { padding: 28px; border-top: 4px solid var(--public-accent); background: var(--public-cream); }.public-step-grid span { color: var(--public-brand); font-size: 12px; font-weight: 800; letter-spacing: .08em; }.public-step-grid h3 { margin-top: 18px; font-size: 23px; }.public-step-grid p { margin: 11px 0 0; color: var(--public-muted); }.public-cta { padding: 56px 0; background: var(--public-ink); color: #fff; }.public-cta .public-wrap { display: flex; align-items: center; justify-content: space-between; gap: 28px; }.public-cta h2 { margin: 8px 0 0; font-size: 38px; }.public-cta .public-eyebrow { color: var(--public-accent); }.public-footer { padding: 46px 0; background: #0e1021; color: #fff; }.public-footer .public-brand { color: #fff; }.public-footer p { max-width: 320px; margin: 15px 0 25px; color: rgba(255,255,255,.62); }.public-footer small { color: rgba(255,255,255,.45); }

.public-catalog-hero { padding: 72px 0 66px; background: radial-gradient(circle at 80% 10%, rgba(232,161,60,.28), transparent 24rem), var(--public-ink); color: #fff; }.public-catalog-hero .public-pill { border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.1); color: #fff; }.public-catalog-hero h1 { font-size: clamp(40px, 5vw, 60px); }.public-catalog-hero p { max-width: 620px; margin: 18px 0 0; color: rgba(255,255,255,.72); font-size: 18px; }.catalog-summary { display: flex; justify-content: space-between; gap: 18px; margin-bottom: 24px; color: var(--public-muted); font-size: 14px; }.catalog-summary span:first-child { color: var(--public-ink); font-weight: 800; }.public-course-card { padding: 0; overflow: hidden; }.course-card-top { min-height: 66px; align-items: center; margin: 0; padding: 15px 20px; background: #fbedcf; }.course-card-content { padding: 23px; }.catalog-card-icon { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 10px; background: #eeeffa; color: var(--public-brand); font: 23px Georgia, serif; }.public-course-card h2 { margin: 16px 0 0; font-size: 23px; }.public-course-card p { min-height: 42px; margin: 10px 0 20px; color: var(--public-muted); font-size: 13px; }.public-empty { color: var(--public-muted); }

@media (max-width: 900px) { .marketing-hero-grid { grid-template-columns: 1fr; }.hero-preview { max-width: 530px; width: 100%; margin: 0 auto; }.public-course-grid, .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }.public-nav .public-wrap { gap: 13px; }.public-nav nav { display: none; }.public-nav-cta { display: none; } }
@media (max-width: 640px) { .public-wrap { padding-inline: 20px; }.marketing-hero { padding: 56px 0; }.marketing-hero h1, .public-catalog-hero h1 { font-size: 42px; }.public-section { padding: 58px 0; }.public-section-heading, .public-cta .public-wrap { align-items: flex-start; flex-direction: column; }.public-course-grid, .catalog-grid, .public-step-grid { grid-template-columns: 1fr; }.catalog-summary { flex-direction: column; }.hero-preview { transform: none; }.public-login-link, .public-user { display: none; }.public-proof { gap: 9px; }.public-cta h2 { font-size: 32px; } }

.public-course-head { padding: 58px 0 62px; background: radial-gradient(circle at 88% 15%, rgba(232,161,60,.28), transparent 23rem), var(--public-ink); }.public-course-head .back-link { color: rgba(255,255,255,.75); font-weight: 700; text-decoration: none; }.public-course-head .back-link:hover { color: #fff; }.course-head-grid { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-top: 26px; }.public-course-head .public-pill { border-color: rgba(255,255,255,.17); background: rgba(255,255,255,.09); color: #fff; }.public-course-head h1 { margin: 17px 0 0; color: #fff; font-size: clamp(40px, 5vw, 62px); letter-spacing: -.035em; }.public-course-head p { max-width: 590px; margin: 13px 0 0; color: rgba(255,255,255,.7); font-size: 17px; }.course-head-stats { display: flex; gap: 24px; flex: 0 0 auto; }.course-head-stats div { min-width: 96px; padding-left: 20px; border-left: 1px solid rgba(255,255,255,.2); }.course-head-stats b, .course-head-stats span { display: block; }.course-head-stats b { color: var(--public-accent); font: 36px Georgia, serif; }.course-head-stats span { color: rgba(255,255,255,.62); font-size: 12px; font-weight: 700; }
.course-detail-section { padding-bottom: 76px; }.course-detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; gap: 64px; }.course-section-title { margin: 9px 0 0; font-size: clamp(33px, 4vw, 48px); letter-spacing: -.03em; line-height: 1.07; }.course-section-intro { max-width: 610px; margin: 16px 0 28px; color: var(--public-muted); font-size: 16px; line-height: 1.7; }.public-syllabus { display: grid; gap: 11px; }.syllabus-chapter { overflow: hidden; border: 1px solid var(--public-line); border-radius: 13px; background: #fff; }.syllabus-chapter > summary { display: grid; grid-template-columns: 42px 1fr 22px; align-items: center; gap: 14px; padding: 17px 19px; cursor: pointer; list-style: none; }.syllabus-chapter > summary::-webkit-details-marker, .syllabus-subtopic > summary::-webkit-details-marker { display: none; }.syllabus-number { color: var(--public-brand); font-size: 12px; font-weight: 900; }.syllabus-chapter summary b, .syllabus-chapter summary small { display: block; }.syllabus-chapter summary b { font-size: 17px; }.syllabus-chapter summary small, .syllabus-subtopic summary small { margin-top: 2px; color: var(--public-muted); font-size: 12px; }.syllabus-chapter summary i, .syllabus-subtopic summary i { color: var(--public-brand); font-size: 20px; font-style: normal; text-align: center; transition: transform .18s ease; }.syllabus-chapter[open] > summary i, .syllabus-subtopic[open] > summary i { transform: rotate(180deg); }.syllabus-body { padding: 0 19px 18px 75px; }.syllabus-subtopic { border-top: 1px solid #eeeae0; }.syllabus-subtopic > summary { display: grid; grid-template-columns: minmax(0, 1fr) auto 20px; align-items: center; gap: 12px; padding: 13px 0; cursor: pointer; list-style: none; color: #33364f; font-size: 14px; font-weight: 700; }.syllabus-subtopic > ol { margin: 0 0 14px; padding-left: 20px; color: var(--public-muted); font-size: 13px; }.syllabus-subtopic > ol li { padding: 5px 0; }.public-purchase-panel { position: sticky; top: 96px; padding: 27px; border: 1px solid var(--public-line); border-radius: 16px; background: #fff; box-shadow: 0 12px 35px rgba(20,22,43,.07); }.public-purchase-panel h2 { margin: 11px 0 0; font-size: 28px; line-height: 1.12; }.public-purchase-panel p { margin: 13px 0 22px; color: var(--public-muted); line-height: 1.65; }.public-purchase-panel .public-button { width: 100%; }.public-purchase-panel small { display: block; margin-top: 14px; color: var(--public-muted); font-size: 12px; text-align: center; }.public-empty-panel { padding: 20px; border: 1px dashed #d9d3c7; border-radius: 12px; color: var(--public-muted); background: rgba(255,255,255,.5); }
.course-feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }.course-feature-grid article { min-height: 212px; padding: 23px; border: 1px solid var(--public-line); border-radius: 14px; background: #fff; }.course-feature-grid article > span { display: grid; width: 37px; height: 37px; place-items: center; border-radius: 10px; background: #fbedcf; color: var(--public-brand); font-weight: 900; }.course-feature-grid h3 { margin: 18px 0 0; font-size: 20px; }.course-feature-grid p { min-height: 43px; margin: 8px 0 17px; color: var(--public-muted); font-size: 13px; line-height: 1.55; }.course-feature-grid b { color: var(--public-brand); }
@media (max-width: 900px) { .course-detail-grid { grid-template-columns: 1fr; gap: 38px; }.public-purchase-panel { position: static; }.course-head-grid { align-items: start; flex-direction: column; }.course-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .public-course-head { padding: 45px 0; }.course-head-stats { gap: 16px; }.course-head-stats div { min-width: 0; padding-left: 14px; }.syllabus-body { padding-left: 19px; }.course-feature-grid { grid-template-columns: 1fr; } }

.reference-course-card { overflow: hidden; border: 1px solid var(--public-line); border-radius: 20px; background: #fff; box-shadow: 0 1px 2px rgba(20,22,43,.04), 0 12px 28px rgba(20,22,43,.05); transition: transform .18s ease, box-shadow .18s ease; }.reference-course-card:hover { box-shadow: 0 18px 34px rgba(20,22,43,.12); transform: translateY(-4px); }.reference-course-head { position: relative; min-height: 154px; overflow: hidden; padding: 20px; background: linear-gradient(135deg, #2b2f77, #3d439d); color: #fff; }.reference-course-level { display: inline-flex; align-items: center; min-height: 31px; padding: 0 15px; border-radius: 999px; background: rgba(255,255,255,.94); color: #171a3d; font-size: 12px; font-weight: 900; letter-spacing: .05em; }.reference-course-head strong { position: absolute; bottom: 21px; left: 20px; font: 46px Georgia, "Times New Roman", serif; letter-spacing: -.04em; line-height: 1; }.reference-course-head i { position: absolute; right: 18px; bottom: -10px; color: rgba(255,255,255,.25); font: 76px Georgia, "Times New Roman", serif; font-style: normal; line-height: 1; }.reference-course-body { padding: 24px 22px 22px; }.reference-course-body h2, .reference-course-body h3 { margin: 0; color: var(--public-ink); font-size: 27px; line-height: 1.08; }.reference-course-body > p { margin: 8px 0 18px; color: var(--public-muted); font-size: 14px; }.reference-course-metrics { display: flex; flex-wrap: wrap; gap: 14px; color: var(--public-muted); font-size: 13px; }.reference-course-metrics span::before { margin-right: 6px; color: #279f74; content: "▣"; }.reference-course-metrics span:nth-child(2)::before { color: #5849a4; content: "▤"; }.reference-course-divider { height: 1px; margin: 18px 0; background: var(--public-line); }.reference-course-support { display: block; color: var(--public-muted); font-size: 13px; }.reference-course-cta { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-width: 142px; margin-top: 22px; padding: 11px 18px; border-radius: 999px; background: var(--public-brand); color: #fff; font-size: 14px; font-weight: 800; text-decoration: none; }.reference-course-cta:hover { background: var(--public-brand-2); color: #fff; }.public-course-grid .reference-course-card { min-height: 0; }.public-course-grid .reference-course-head { min-height: 132px; }.public-course-grid .reference-course-head strong { font-size: 38px; }.public-course-grid .reference-course-body h3 { font-size: 23px; }

.auth-page { min-height: calc(100vh - 222px); display: grid; place-items: center; padding: 70px 20px; background: radial-gradient(circle at 86% 12%, rgba(232,161,60,.18), transparent 23rem), var(--public-cream); }.auth-card { width: min(100%, 520px); padding: 36px; border: 1px solid var(--public-line); border-radius: 20px; background: #fff; box-shadow: 0 20px 45px rgba(20,22,43,.09); }.auth-card-wide { width: min(100%, 650px); }.auth-card h1 { margin: 10px 0 0; font-size: 38px; letter-spacing: -.03em; }.auth-card > p { margin: 13px 0 26px; color: var(--public-muted); line-height: 1.65; }.auth-form { display: grid; gap: 8px; }.auth-form label { margin-top: 8px; color: var(--public-ink); font-size: 14px; font-weight: 800; }.auth-form .form-control, .auth-form .form-select { min-height: 46px; border-color: #d9d3c7; }.auth-form .public-button { margin-top: 16px; border: 0; }.auth-check { display: flex; align-items: center; gap: 9px; margin-top: 12px !important; color: var(--public-muted) !important; font-weight: 700 !important; }.auth-check input { width: 18px; height: 18px; accent-color: var(--public-brand); }.auth-switch { margin: 22px 0 0 !important; text-align: center; font-size: 14px; }.auth-switch a, .auth-resend button { color: var(--public-brand); font-weight: 800; }.otp-input { font-size: 24px; font-weight: 800; letter-spacing: .35em; text-align: center; }.auth-resend { margin-top: 16px; text-align: center; }.auth-resend button { border: 0; background: transparent; font-size: 14px; }

.education-tree-field { display: grid; gap: 10px; margin-top: 8px; }.education-tree-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }.education-tree-heading label { margin-top: 0; }.education-tree-heading p { margin: 5px 0 0; color: var(--public-muted); font-size: 13px; line-height: 1.45; }.education-tree-selected-badge { margin-top: 2px; padding: 5px 10px; border-radius: 999px; background: #fbedcf; color: #875408; font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .06em; }.education-tree { max-height: 320px; overflow: auto; padding: 10px; border: 1px solid #d9d3c7; border-radius: 14px; background: #faf8f3; }.education-tree-empty { padding: 18px; color: var(--public-muted); text-align: center; }.education-tree-row { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 8px; align-items: stretch; margin-left: var(--tree-indent); margin-bottom: 7px; }.education-tree-row.is-hidden { display: none; }.education-tree-toggle { width: 34px; min-height: 46px; border: 1px solid var(--public-line); border-radius: 11px; background: #fff; color: var(--public-brand); font-size: 18px; font-weight: 900; line-height: 1; }.education-tree-toggle:disabled { opacity: .35; }.education-tree-choice { min-width: 0; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 14px; border: 1px solid var(--public-line); border-radius: 13px; background: #fff; color: var(--public-ink); text-align: left; transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease; }.education-tree-choice strong, .education-tree-choice small { display: block; }.education-tree-choice strong { font-size: 14px; }.education-tree-choice small { margin-top: 2px; color: var(--public-muted); font-size: 12px; overflow-wrap: anywhere; }.education-tree-choice em { flex: 0 0 auto; padding: 5px 10px; border-radius: 999px; background: #eeeffa; color: var(--public-brand); font-size: 11px; font-style: normal; font-weight: 900; }.education-tree-row.can-select .education-tree-choice:hover { border-color: rgba(43,47,119,.45); box-shadow: 0 10px 24px rgba(20,22,43,.07); transform: translateY(-1px); }.education-tree-row.is-branch .education-tree-choice { cursor: default; opacity: .82; }.education-tree-row.is-selected .education-tree-choice { border-color: var(--public-brand); background: #f2f2ff; box-shadow: 0 0 0 3px rgba(43,47,119,.11); }.education-tree-row.is-selected .education-tree-choice em { background: var(--public-brand); color: #fff; }

.student-alert { margin-bottom: 18px; padding: 14px 16px; border-radius: 12px; font-size: 14px; font-weight: 800; }.student-alert-success { border: 1px solid rgba(39,159,116,.25); background: #eefbf6; color: #146c4d; }.student-alert-error { border: 1px solid rgba(185,28,28,.2); background: #fff1f1; color: #991b1b; }.course-access-actions { display: grid; gap: 10px; }.course-access-actions form { margin: 0; }.course-access-actions .public-button { width: 100%; border: 0; }.course-access-price { display: block; margin: 15px 0 5px; color: var(--public-ink); font: 30px Georgia, "Times New Roman", serif; }

.course-feature-select { display: grid; gap: 9px; margin: 16px 0 14px; }.course-feature-select label { display: grid; grid-template-columns: 22px minmax(0,1fr); align-items: start; gap: 10px; margin: 0; padding: 12px; border: 1px solid var(--public-line); border-radius: 13px; background: #faf8f3; cursor: pointer; }.course-feature-select label:has(input:checked) { border-color: rgba(43,47,119,.35); background: #f2f2ff; }.course-feature-select input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--public-brand); }.course-feature-select b, .course-feature-select small { display: block; }.course-feature-select b { color: var(--public-ink); font-size: 13px; }.course-feature-select small { margin-top: 2px; color: var(--public-muted); font-size: 12px; }
.course-feature-select label:has(input:disabled) { cursor: default; opacity: .82; }

.learning-shell { min-height: calc(100vh - 72px); display: grid; grid-template-columns: 360px minmax(0, 1fr); background: #f6f3ec; }
.learning-sidebar { position: sticky; top: 72px; height: calc(100vh - 72px); overflow: auto; border-right: 1px solid var(--public-line); background: #fff; }
.learning-back { display: inline-flex; margin: 18px 20px 0; color: var(--public-brand); font-size: 13px; font-weight: 800; text-decoration: none; }
.learning-course-title { padding: 18px 20px 16px; border-bottom: 1px solid var(--public-line); }
.learning-course-title span { color: #a36a12; font-size: 12px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.learning-course-title h1 { margin: 7px 0 14px; font-size: 24px; line-height: 1.15; }
.learning-progress div { height: 8px; overflow: hidden; border-radius: 999px; background: #eeeae0; }
.learning-progress div span { display: block; height: 100%; border-radius: inherit; background: #279f74; }
.learning-progress small { display: block; margin-top: 7px; color: var(--public-muted); font-size: 12px; }
.learning-tree { padding: 12px; }
.learning-tree-item { margin-left: calc(var(--level) * 10px); }
.learning-tree-node { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 8px; padding: 9px 8px; color: var(--public-ink); }
.learning-tree-node > span:not(.learning-tree-bullet) { display: none; }
.learning-tree-node button { width: 18px; height: 18px; display: grid; place-items: center; border: 0; border-radius: 5px; background: #f2f2ff; color: var(--public-brand); font-size: 12px; font-weight: 900; line-height: 1; }
.learning-tree-node button:hover { background: #e6e7ff; }
.learning-tree-node button span, .learning-tree-bullet { color: var(--public-brand); font-size: 12px; }
.learning-tree-node b { min-width: 0; font-size: 13px; overflow-wrap: anywhere; }
.learning-video-link { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 8px; margin: 2px 0 6px 18px; padding: 10px; border-radius: 10px; color: var(--public-ink); text-decoration: none; }
.learning-video-link:hover, .learning-video-link.active { background: #f2f2ff; color: var(--public-brand); }
.learning-video-link span { font-size: 13px; font-weight: 900; }
.learning-video-link em { min-width: 0; font-size: 13px; font-style: normal; font-weight: 800; overflow-wrap: anywhere; }
.learning-video-link small { grid-column: 2; color: var(--public-muted); font-size: 11px; }
.learning-main { min-width: 0; }
.learning-player { display: grid; min-height: 52vh; place-items: center; background: #11131f; }
.learning-player video, .learning-player iframe { width: 100%; height: min(62vh, 720px); border: 0; background: #11131f; }
.learning-player video { object-fit: contain; }
.learning-content { padding: 26px 34px 44px; }
.learning-current { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.learning-current span { flex: 0 0 100%; color: var(--public-muted); font-size: 13px; font-weight: 800; }
.learning-current h2 { margin: 0; font-size: 31px; line-height: 1.12; }
.learning-current small { padding: 7px 11px; border-radius: 999px; background: #eefbf6; color: #146c4d; font-size: 12px; font-weight: 900; }
.learning-tabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--public-line); }
.learning-tabs button { min-height: 44px; border: 0; border-bottom: 3px solid transparent; background: transparent; color: var(--public-muted); padding: 0 14px; font-weight: 900; white-space: nowrap; }
.learning-tabs button.active { border-bottom-color: var(--public-brand); color: var(--public-ink); }
.learning-tabs button.locked { opacity: .58; }
.learning-content > .learning-tabs:not(.learning-tabs-functional),
.learning-content > .learning-overview-grid { display: none; }
.learning-panel { display: none; margin-top: 22px; }
.learning-panel.active { display: block; }
.learning-overview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.learning-overview-grid article { min-height: 126px; padding: 18px; border: 1px solid var(--public-line); border-radius: 12px; background: #fff; }
.learning-overview-grid b { display: block; margin-bottom: 8px; color: var(--public-ink); }
.learning-overview-grid p { margin: 0; color: var(--public-muted); font-size: 14px; line-height: 1.55; }
.learning-overview-grid a { color: var(--public-brand); font-weight: 900; }
.learning-list { display: grid; gap: 10px; }
.learning-list-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; padding: 14px 16px; border: 1px solid var(--public-line); border-radius: 10px; background: #fff; color: var(--public-ink); text-decoration: none; }
.learning-list-row.active { border-color: rgba(46, 47, 126, .24); background: #f2f1ff; }
.learning-list-row b { display: block; margin-bottom: 4px; }
.learning-list-row small, .learning-list-row em, .learning-list-row p { color: var(--public-muted); font-size: 13px; font-style: normal; }
.learning-list-row p { margin: 8px 0 0; line-height: 1.55; }
.learning-list-row > a { flex: 0 0 auto; color: var(--public-brand); font-weight: 900; }
.learning-list-card { align-items: flex-start; }
.learning-rich { margin-top: 10px; color: var(--public-ink); font-size: 14px; line-height: 1.65; }
.learning-rich :last-child { margin-bottom: 0; }
.learning-tab-empty { padding: 26px; border: 1px solid var(--public-line); border-radius: 12px; background: #fff; }
.learning-tab-empty h3 { margin: 0 0 8px; color: var(--public-ink); }
.learning-tab-empty p { margin: 0 0 16px; color: var(--public-muted); line-height: 1.55; }
.learning-tab-empty a { color: var(--public-brand); font-weight: 900; }
.learning-locked, .learning-empty-player { max-width: 520px; padding: 28px; color: #fff; text-align: center; }
.learning-locked span { color: var(--public-accent); font-size: 12px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.learning-locked h2, .learning-empty-player h2 { margin: 9px 0 18px; font-size: 28px; }
.learning-empty-player p, .learning-empty { color: var(--public-muted); }
@media (max-width: 980px) { .learning-shell { grid-template-columns: 1fr; }.learning-sidebar { position: static; height: auto; max-height: 48vh; }.learning-overview-grid { grid-template-columns: 1fr; }.learning-content { padding-inline: 20px; } }