:root {
  --brand-900: var(--vnu-green-deep);
  --brand-800: var(--vnu-green-dark);
  --brand-700: var(--vnu-green);
  --brand-600: var(--vnu-green-bright);
  --brand-500: #24aa70;
  --brand-100: var(--vnu-green-soft);
  --brand-50: var(--vnu-green-wash);
  --text-primary: var(--vnu-ink);
  --text-secondary: var(--vnu-muted);
  --border: var(--vnu-green-line);
  --surface: var(--vnu-paper);
  --surface-soft: var(--vnu-canvas);
  --container: 1240px;
  font-family: var(--font-body);
  color: var(--text-primary);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--surface);
  color: var(--text-primary);
}
body.navigation-pending { cursor: progress; }
body.navigation-pending::before { content: ""; position: fixed; inset: 0 auto auto 0; z-index: 9999; width: 42%; height: 3px; background: var(--brand-600); animation: navigation-progress .7s ease-out infinite alternate; }
[data-navigation-active] { opacity: .72; }
@keyframes navigation-progress { from { transform: translateX(-35%); } to { transform: translateX(175%); } }
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select {
  font: inherit;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(0, 122, 70, 0.24);
  outline-offset: 3px;
}
[hidden] {
  display: none !important;
}
.site-container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}
.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
}
.site-nav-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.6px;
}
.site-brand img {
  width: 40px;
  height: 40px;
}
.site-nav-links {
  display: flex;
  gap: 28px;
  margin: 0 auto;
  font-size: 13px;
  color: var(--text-secondary);
}
.site-nav-links a:hover,
.site-nav-links a[aria-current="page"] {
  color: var(--brand-700);
}
.contact-menu {
  position: relative;
}
.contact-menu summary {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
}
.contact-menu summary::-webkit-details-marker {
  display: none;
}
.contact-menu summary:hover {
  color: var(--brand-700);
}
.contact-menu summary span {
  color: var(--brand-700);
  transition: transform 0.18s ease;
}
.contact-menu[open] summary span {
  transform: rotate(180deg);
}
.contact-menu-panel {
  position: absolute;
  top: calc(100% + 18px);
  left: 50%;
  width: 248px;
  padding: 8px;
  transform: translateX(-50%);
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 18px 45px rgba(13, 66, 22, 0.14);
}
.contact-menu-panel a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  padding: 11px 12px;
  border-radius: 8px;
}
.contact-menu-panel a:hover {
  background: var(--brand-100);
}
.contact-menu-panel span {
  grid-column: 1;
  color: var(--text-secondary);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact-menu-panel strong {
  grid-column: 1;
  color: var(--text-primary);
  font-size: 13px;
}
.contact-menu-panel b {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  color: var(--brand-700);
  font-size: 15px;
}
.site-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.site-actions[data-auth-state="loading"] {
  visibility: hidden;
}
.site-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 18px;
  border: 1px solid var(--brand-700);
  border-radius: 9px;
  background: var(--brand-700);
  color: white;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.18s ease;
}
.site-button:hover {
  background: var(--brand-900);
  border-color: var(--brand-900);
  transform: translateY(-1px);
}
.site-button.secondary {
  background: white;
  color: var(--text-primary);
  border-color: var(--border);
}
.site-button.secondary:hover {
  border-color: #b9c7bb;
  background: var(--surface-soft);
}
.site-menu {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  place-content: center;
  gap: 5px;
}
.site-menu i {
  width: 20px;
  height: 1.5px;
  background: currentColor;
  display: block;
}
.page-hero {
  padding: 74px 0 48px;
  border-bottom: 1px solid var(--border);
}
.page-kicker {
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-700);
  letter-spacing: 0.12em;
}
.page-hero h1,
.detail-copy h1 {
  margin: 14px 0 16px;
  max-width: 820px;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.045em;
  font-weight: 650;
}
.page-hero p,
.detail-copy > p {
  max-width: 670px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.75;
}
.catalog-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 24px;
  padding: 38px 0 26px;
}
.catalog-toolbar p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
}
.catalog-search {
  display: flex;
  gap: 10px;
}
.catalog-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}
.catalog-controls select {
  min-height: 46px;
  padding: 0 36px 0 13px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: white;
  color: var(--text-secondary);
  font-size: 12px;
}
.catalog-search input {
  width: min(360px, 60vw);
  min-height: 46px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text-primary);
  background: white;
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  padding-bottom: 80px;
  scroll-margin-top: 90px;
}
.course-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: white;
  transition:
    transform 0.18s,
    border-color 0.18s;
}
.course-card:hover {
  transform: translateY(-3px);
  border-color: #a8cdaa;
}
.course-thumb {
  min-height: 174px;
  display: grid;
  place-items: center;
  color: var(--brand-700);
  background: var(--brand-100) !important;
  position: relative;
  overflow: hidden;
}
.course-thumb::before,
.course-thumb::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  height: 1px;
  background: rgba(0, 122, 70, 0.18);
}
.course-thumb::before {
  bottom: 43px;
  box-shadow:
    0 14px rgba(0, 122, 70, 0.18),
    0 28px rgba(0, 122, 70, 0.18);
}
.course-thumb i {
  font-size: 44px;
  position: relative;
  z-index: 1;
}
.course-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.badge {
  width: max-content;
  padding: 5px 8px;
  border-radius: 6px;
  background: var(--brand-50);
  color: var(--brand-700);
  font-size: 10px;
  font-weight: 700;
}
.course-body h4 {
  margin: 15px 0 8px;
  font-size: 19px;
  line-height: 1.4;
}
.course-body .text-sm {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.65;
}
.course-meta,
.course-rating {
  margin-top: 16px;
  color: var(--text-secondary);
  font-size: 12px;
}
.course-rating {
  display: none;
}
.course-footer {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
}
.course-commerce-meta {
  display: grid;
  gap: 5px;
}
.course-price {
  font-size: 17px;
}
.course-commerce-meta small {
  color: var(--text-secondary);
  font-size: 10px;
}
.course-footer .product-button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  background: var(--brand-700);
  color: white;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
}
.course-footer .course-locked {
  background: var(--surface-soft);
  color: var(--text-secondary);
}
.empty-state,
.catalog-load-state {
  grid-column: 1/-1;
  padding: 64px 24px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 14px;
}
.empty-state h4,
.catalog-load-state h3 {
  margin: 10px 0;
}
.empty-state p,
.catalog-load-state p {
  color: var(--text-secondary);
}
.catalog-load-state .product-button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--brand-700);
  border-radius: 8px;
  background: var(--brand-700);
  color: white;
  cursor: pointer;
}
.site-footer {
  border-top: 1px solid var(--border);
  padding: 42px 0 24px;
}
.site-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 36px;
}
.site-footer h2 {
  margin: 0 0 14px;
  font-size: 13px;
}
.site-footer a,
.site-footer p {
  display: block;
  margin: 0 0 10px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
}
.site-footer-bottom {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--text-secondary);
  font-size: 10px;
  line-height: 1.6;
}
.auth-page {
  min-height: 100vh;
  background: var(--surface-soft);
  display: grid;
  place-items: center;
  padding: 32px;
}
.auth-wrap {
  width: min(100%, 460px);
}
.auth-wrap > .site-brand {
  margin-bottom: 26px;
}
.auth-card {
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: white;
}
.auth-card h1 {
  margin: 10px 0 12px;
  font-size: 34px;
  letter-spacing: -0.035em;
}
.auth-card > p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}
.google-auth-btn {
  width: 100%;
  margin-top: 28px;
  min-height: 50px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: white;
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
}
.google-auth-btn:hover {
  border-color: #a8cdaa;
  background: var(--brand-50);
}
.google-mark {
  display: inline-grid;
  place-items: center;
  width: 25px;
  height: 25px;
  margin-right: 8px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: #4285f4;
}
.auth-security-note {
  margin-top: 18px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
}
.auth-links {
  margin-top: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
}
.auth-links a {
  color: var(--brand-700);
  font-weight: 600;
}
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid #cfd6d0;
  border-top-color: var(--brand-700);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.legal-header {
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.legal-header .site-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.legal-layout {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
  padding: 64px 0 90px;
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  gap: 70px;
}
.legal-toc {
  position: sticky;
  top: 100px;
  align-self: start;
}
.legal-toc strong {
  display: block;
  margin-bottom: 13px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brand-700);
}
.legal-toc a {
  display: block;
  padding: 7px 0;
  color: var(--text-secondary);
  font-size: 12px;
}
.legal-content h1 {
  margin: 8px 0 14px;
  font-size: clamp(38px, 6vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}
.legal-updated {
  color: var(--text-secondary);
  font-size: 12px;
}
.legal-content h2 {
  margin: 42px 0 12px;
  padding-top: 8px;
  font-size: 20px;
  scroll-margin-top: 90px;
}
.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.85;
}
.legal-content ul,
.legal-content ol {
  padding-left: 22px;
}
.legal-callout {
  margin-top: 32px;
  padding: 18px;
  border-left: 3px solid var(--brand-700);
  background: var(--brand-50);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
}
.detail-hero {
  padding: 64px 0 70px;
  border-bottom: 1px solid var(--border);
}
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.75fr);
  gap: 70px;
  align-items: start;
}
.breadcrumb {
  margin-bottom: 28px;
  color: var(--text-secondary);
  font-size: 12px;
}
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 30px;
  color: var(--text-secondary);
  font-size: 13px;
}
.purchase-card {
  position: sticky;
  top: 98px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: white;
}
.purchase-card .price {
  display: block;
  margin-bottom: 18px;
  font-size: 28px;
  font-weight: 700;
}
.purchase-card .site-button {
  width: 100%;
}
.purchase-list {
  margin: 24px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--border);
  list-style: none;
}
.purchase-list li {
  margin: 11px 0;
  color: var(--text-secondary);
  font-size: 12px;
}
.purchase-list li::before {
  content: "✓";
  color: var(--brand-700);
  margin-right: 9px;
}
.detail-section {
  padding: 64px 0;
}
.detail-section h2 {
  font-size: 30px;
  letter-spacing: -0.03em;
}
.detail-benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 780px;
}
.detail-benefits p {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 13px;
}
.checkout-page {
  background: var(--surface-soft);
  min-height: 100vh;
}
.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  padding: 60px 0 90px;
}
.checkout-main,
.order-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: white;
}
.checkout-main h1 {
  margin: 0 0 12px;
  font-size: 36px;
}
.checkout-main p {
  color: var(--text-secondary);
  line-height: 1.7;
}
.status-panel {
  margin-top: 28px;
  padding: 20px;
  background: var(--brand-50);
  border-left: 3px solid var(--brand-700);
  font-size: 13px;
  line-height: 1.7;
}
.order-card h2 {
  margin: 0 0 22px;
  font-size: 18px;
}
.order-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.order-row.total {
  border-bottom: 0;
  font-size: 17px;
  font-weight: 700;
}
.not-found {
  min-height: calc(100vh - 73px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 48px 24px;
}
.not-found strong {
  display: block;
  color: var(--brand-100);
  font-size: clamp(100px, 22vw, 230px);
  line-height: 0.8;
  letter-spacing: -0.08em;
}
.not-found h1 {
  margin: 20px 0 10px;
  font-size: 34px;
}
.not-found p {
  color: var(--text-secondary);
}
@media (max-width: 900px) {
  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .site-footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
  .site-footer-grid > div:last-child {
    grid-column: 2/-1;
  }
  .detail-grid,
  .checkout-grid {
    grid-template-columns: 1fr;
  }
  .purchase-card {
    position: static;
  }
}
@media (max-width: 720px) {
  .site-container,
  .legal-layout {
    width: calc(100% - 32px);
  }
  .site-nav-inner {
    gap: 10px;
  }
  .site-brand {
    font-size: 18px;
  }
  .site-brand img {
    width: 34px;
    height: 34px;
  }
  .site-nav-links {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 64px;
    flex-direction: column;
    gap: 0;
    padding: 14px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
  }
  .site-nav-links.open {
    display: flex;
  }
  .site-nav-links a {
    padding: 12px;
  }
  .contact-menu {
    padding: 12px;
  }
  .contact-menu summary {
    justify-content: space-between;
  }
  .contact-menu-panel {
    position: static;
    width: 100%;
    margin-top: 10px;
    padding: 4px;
    transform: none;
    box-shadow: none;
  }
  .site-menu {
    display: grid;
    order: 3;
  }
  .site-actions {
    margin-left: auto;
  }
  .site-actions > a:not(.site-button),
  .desktop-only {
    display: none;
  }
  .site-button {
    min-height: 42px;
    padding-inline: 13px;
  }
  .page-hero {
    padding: 50px 0 36px;
  }
  .page-hero h1,
  .detail-copy h1 {
    font-size: 40px;
  }
  .page-hero p,
  .detail-copy > p {
    font-size: 15px;
  }
  .catalog-toolbar {
    grid-template-columns: 1fr;
    padding-top: 28px;
  }
  .catalog-controls {
    align-items: stretch;
    flex-direction: column;
  }
  .catalog-search input {
    width: 100%;
  }
  .catalog-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 56px;
  }
  .course-thumb {
    min-height: 130px;
  }
  .site-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer-grid > div:first-child,
  .site-footer-grid > div:last-child {
    grid-column: 1/-1;
  }
  .site-footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
  .auth-page {
    padding: 20px;
  }
  .auth-card {
    padding: 28px 22px;
  }
  .legal-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 44px 0 64px;
  }
  .legal-toc {
    position: static;
    display: flex;
    gap: 8px;
    overflow: auto;
    padding-bottom: 10px;
  }
  .legal-toc strong {
    display: none;
  }
  .legal-toc a {
    flex: 0 0 auto;
    padding: 8px 10px;
    background: var(--surface-soft);
    border-radius: 7px;
  }
  .detail-hero {
    padding: 44px 0;
  }
  .detail-grid {
    gap: 32px;
  }
  .detail-benefits {
    grid-template-columns: 1fr;
  }
  .checkout-grid {
    padding: 36px 0 60px;
    gap: 18px;
  }
  .checkout-main,
  .order-card {
    padding: 22px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}