.bd-intro-page {
  --bd-intro-bg: linear-gradient(180deg, #f4f7fb 0%, #eef3fa 46%, #e8eef8 100%);
  --bd-intro-surface: rgba(255, 255, 255, 0.78);
  --bd-intro-surface-strong: rgba(255, 255, 255, 0.92);
  --bd-intro-stroke: rgba(255, 255, 255, 0.82);
  --bd-intro-stroke-soft: rgba(137, 159, 191, 0.22);
  --bd-intro-shadow: 0 24px 60px rgba(22, 40, 72, 0.14);
  --bd-intro-shadow-soft: 0 16px 34px rgba(24, 44, 76, 0.1);
  --bd-intro-text: #18314f;
  --bd-intro-text-soft: #5f7593;
  --bd-intro-title: #102944;
  --bd-intro-primary: #2a6df6;
  --bd-intro-primary-strong: #1c57cb;
  --bd-intro-primary-soft: rgba(42, 109, 246, 0.12);
  --bd-intro-success: #1da97c;
  --bd-intro-success-soft: rgba(29, 169, 124, 0.13);
  --bd-intro-warm: rgba(255, 210, 161, 0.28);
  --bd-intro-cool: rgba(164, 197, 255, 0.3);
  --bd-intro-radius-xl: 32px;
  --bd-intro-radius-lg: 22px;
  --bd-intro-radius-md: 18px;
  --bd-intro-radius-sm: 14px;
  --bd-intro-content: min(1180px, calc(100% - 2rem));
  color: var(--bd-intro-text);
  margin: 1.75rem auto 2.5rem;
  max-width: var(--bd-intro-content);
  position: relative;
  isolation: isolate;
}

.bd-intro-page *,
.bd-intro-page *::before,
.bd-intro-page *::after {
  box-sizing: border-box;
}

.bd-intro-page__shell {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 2vw, 1.75rem);
  border-radius: var(--bd-intro-radius-xl);
  border: 1px solid var(--bd-intro-stroke);
  background: var(--bd-intro-bg);
  box-shadow: var(--bd-intro-shadow);
}

.bd-intro-page__shell::before,
.bd-intro-page__shell::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(4px);
}

.bd-intro-page__shell::before {
  width: 320px;
  height: 320px;
  top: -120px;
  inset-inline-start: -100px;
  background: radial-gradient(circle, var(--bd-intro-cool) 0%, rgba(164, 197, 255, 0) 72%);
}

.bd-intro-page__shell::after {
  width: 280px;
  height: 280px;
  bottom: -110px;
  inset-inline-end: -90px;
  background: radial-gradient(circle, var(--bd-intro-warm) 0%, rgba(255, 210, 161, 0) 74%);
}

.bd-intro-page .bd-lang-switcher {
  position: relative;
  z-index: 2;
  margin-bottom: 1.25rem;
}

/* Reveal animation */
.bd-intro-page:not(.is-ready) .bd-intro-reveal {
  opacity: 1;
  transform: none;
}

.bd-intro-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  transition-delay: var(--bd-intro-delay, 0ms);
}

.bd-intro-page.is-ready .bd-intro-reveal.is-visible,
.bd-intro-page.is-ready .bd-intro-hero,
.bd-intro-page.is-ready .bd-intro-mission {
  opacity: 1;
  transform: none;
}

/* Hero */
.bd-intro-hero {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 380px);
  gap: clamp(1rem, 2.5vw, 2rem);
  align-items: center;
  padding: clamp(1.35rem, 2.8vw, 2.25rem);
  margin-bottom: 1.25rem;
  border-radius: var(--bd-intro-radius-lg);
  border: 1px solid var(--bd-intro-stroke);
  background: linear-gradient(145deg, var(--bd-intro-surface-strong), var(--bd-intro-surface));
  box-shadow: var(--bd-intro-shadow-soft);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  overflow: hidden;
}

.bd-intro-page--app .bd-intro-hero {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(238, 244, 255, 0.88));
}

.bd-intro-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.85rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: var(--bd-intro-primary-soft);
  color: var(--bd-intro-primary-strong);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.bd-intro-hero__title {
  margin: 0 0 0.85rem;
  color: var(--bd-intro-title);
  font-size: clamp(1.85rem, 4.2vw, 2.85rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.bd-intro-hero__subtitle {
  margin: 0 0 1.1rem;
  max-width: 60ch;
  color: var(--bd-intro-text-soft);
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.75;
}

.bd-intro-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0 0 1.2rem;
  padding: 0;
  list-style: none;
}

.bd-intro-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(42, 109, 246, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: var(--bd-intro-text);
  font-size: 0.78rem;
  font-weight: 700;
}

.bd-intro-hero__badge-icon {
  display: inline-flex;
  color: var(--bd-intro-primary);
}

.bd-intro-hero__badge-icon .bd-intro-icon {
  width: 15px;
  height: 15px;
}

.bd-intro-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.bd-intro-hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 280px;
}

.bd-intro-hero__visual-ring {
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(42, 109, 246, 0.16) 0%, rgba(42, 109, 246, 0) 72%);
}

.bd-intro-hero__visual-ring.is-secondary {
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(29, 169, 124, 0.14) 0%, rgba(29, 169, 124, 0) 72%);
}

.bd-intro-hero__visual-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 280px);
  padding: 1rem;
  border-radius: 28px;
  border: 1px solid rgba(42, 109, 246, 0.16);
  background: linear-gradient(145deg, #ffffff, #eef4ff);
  box-shadow: 0 22px 48px rgba(42, 109, 246, 0.16);
}

/* Mockups */
.bd-intro-mockup--phone {
  width: 168px;
  padding: 0.75rem;
  border-radius: 22px;
  border: 2px solid rgba(16, 41, 68, 0.12);
  background: #ffffff;
}

.bd-intro-mockup__status {
  width: 42px;
  height: 5px;
  margin: 0 auto 0.65rem;
  border-radius: 999px;
  background: rgba(16, 41, 68, 0.1);
}

.bd-intro-mockup__row {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.55rem;
}

.bd-intro-mockup__chip {
  flex: 1;
  height: 10px;
  border-radius: 999px;
  background: rgba(95, 117, 147, 0.16);
}

.bd-intro-mockup__chip.is-primary {
  background: linear-gradient(90deg, var(--bd-intro-primary), var(--bd-intro-primary-strong));
}

.bd-intro-mockup__card {
  height: 52px;
  margin-bottom: 0.45rem;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(42, 109, 246, 0.14), rgba(42, 109, 246, 0.06));
  border: 1px solid rgba(42, 109, 246, 0.1);
}

.bd-intro-mockup__card.is-short {
  height: 34px;
  width: 72%;
}

.bd-intro-mockup__nav {
  display: flex;
  justify-content: space-between;
  gap: 0.35rem;
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid rgba(16, 41, 68, 0.08);
}

.bd-intro-mockup__nav span {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: rgba(95, 117, 147, 0.14);
}

.bd-intro-mockup__nav span.is-active {
  background: var(--bd-intro-primary);
}

.bd-intro-mockup--web {
  width: 100%;
  padding: 0.75rem;
  border-radius: 16px;
  border: 1px solid rgba(16, 41, 68, 0.1);
  background: #ffffff;
}

.bd-intro-mockup__toolbar {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.65rem;
}

.bd-intro-mockup__toolbar span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(95, 117, 147, 0.2);
}

.bd-intro-mockup__toolbar span:first-child {
  background: #ff6b6b;
}

.bd-intro-mockup__toolbar span:nth-child(2) {
  background: #f5c542;
}

.bd-intro-mockup__toolbar span:nth-child(3) {
  background: #1da97c;
}

.bd-intro-mockup__hero-bar {
  height: 44px;
  margin-bottom: 0.55rem;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--bd-intro-primary), var(--bd-intro-primary-strong));
}

.bd-intro-mockup__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
}

.bd-intro-mockup__tile {
  height: 38px;
  border-radius: 10px;
  background: rgba(42, 109, 246, 0.1);
  border: 1px solid rgba(42, 109, 246, 0.08);
}

.bd-intro-mockup__tile.is-wide {
  grid-column: span 3;
  height: 28px;
}

/* Buttons */
.bd-intro-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 46px;
  padding: 0.7rem 1.15rem;
  border-radius: var(--bd-intro-radius-sm);
  border: 1px solid transparent;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.bd-intro-btn .bd-intro-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.bd-intro-btn.is-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--bd-intro-primary), var(--bd-intro-primary-strong));
  box-shadow: 0 14px 28px rgba(42, 109, 246, 0.22);
}

.bd-intro-btn.is-secondary {
  color: var(--bd-intro-primary-strong);
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(42, 109, 246, 0.18);
}

.bd-intro-btn.is-ghost {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
}

.bd-intro-btn.is-large {
  min-height: 52px;
  padding-inline: 1.35rem;
  font-size: 1rem;
}

.bd-intro-btn:hover {
  transform: translateY(-1px);
}

.bd-intro-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(42, 109, 246, 0.14);
}

/* Stats */
.bd-intro-stats {
  position: relative;
  z-index: 1;
  margin-bottom: 1.25rem;
}

.bd-intro-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-intro-stats__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  padding: 1.15rem 0.85rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid var(--bd-intro-stroke-soft);
  background: var(--bd-intro-surface-strong);
  box-shadow: var(--bd-intro-shadow-soft);
  text-align: center;
}

.bd-intro-stats__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--bd-intro-primary-soft);
  color: var(--bd-intro-primary);
}

.bd-intro-stats__value {
  color: var(--bd-intro-title);
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.1;
}

.bd-intro-stats__label {
  color: var(--bd-intro-text-soft);
  font-size: 0.8125rem;
  font-weight: 600;
}

/* Mission */
.bd-intro-mission {
  position: relative;
  z-index: 1;
  margin-bottom: 1.25rem;
  padding: clamp(1.25rem, 2.5vw, 1.85rem);
  border-radius: var(--bd-intro-radius-lg);
  border: 1px solid rgba(29, 169, 124, 0.18);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.94), var(--bd-intro-success-soft));
  box-shadow: var(--bd-intro-shadow-soft);
}

.bd-intro-mission__kicker,
.bd-intro-section-head__kicker,
.bd-intro-cross__kicker,
.bd-intro-showcase__kicker {
  display: inline-block;
  margin-bottom: 0.55rem;
  color: var(--bd-intro-success);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bd-intro-mission h2,
.bd-intro-section-head h2,
.bd-intro-cta h2,
.bd-intro-cross h2 {
  margin: 0 0 0.75rem;
  color: var(--bd-intro-title);
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 800;
  line-height: 1.25;
}

.bd-intro-mission__text {
  margin: 0;
  max-width: 78ch;
  color: var(--bd-intro-text);
  font-size: 1.02rem;
  line-height: 1.82;
}

/* Section head */
.bd-intro-section-head {
  margin-bottom: 1.1rem;
}

.bd-intro-section-head.is-centered {
  text-align: center;
}

.bd-intro-section-head.is-centered p {
  margin-inline: auto;
}

.bd-intro-section-head p {
  margin: 0;
  max-width: 64ch;
  color: var(--bd-intro-text-soft);
  line-height: 1.72;
}

/* Ecosystem */
.bd-intro-ecosystem,
.bd-intro-levels,
.bd-intro-features,
.bd-intro-games,
.bd-intro-showcases,
.bd-intro-journey,
.bd-intro-pillars,
.bd-intro-sync,
.bd-intro-benefits,
.bd-intro-faq,
.bd-intro-platform {
  position: relative;
  z-index: 1;
  margin-bottom: 1.25rem;
  padding: clamp(1.25rem, 2.5vw, 1.85rem);
  border-radius: var(--bd-intro-radius-lg);
  border: 1px solid var(--bd-intro-stroke-soft);
  background: var(--bd-intro-surface-strong);
  box-shadow: var(--bd-intro-shadow-soft);
}

.bd-intro-ecosystem__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.bd-intro-eco-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 100%;
  padding: 1.1rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.14);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 255, 0.88));
}

.bd-intro-eco-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--bd-intro-accent, #2a6df6) 12%, white);
  color: var(--bd-intro-accent, #2a6df6);
}

.bd-intro-eco-card h3 {
  margin: 0;
  color: var(--bd-intro-title);
  font-size: 1rem;
  font-weight: 800;
}

.bd-intro-eco-card p {
  margin: 0;
  color: var(--bd-intro-text-soft);
  font-size: 0.9rem;
  line-height: 1.65;
}

/* Levels */
.bd-intro-levels__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.bd-intro-level-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-height: 100%;
  padding: 1.15rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.14);
  background: linear-gradient(165deg, #ffffff, rgba(244, 248, 255, 0.9));
  border-top: 3px solid var(--bd-intro-level, #2a6df6);
}

.bd-intro-level-card__badge {
  display: inline-flex;
  align-self: flex-start;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bd-intro-level, #2a6df6) 14%, white);
  color: var(--bd-intro-level, #2a6df6);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.bd-intro-level-card h3 {
  margin: 0;
  color: var(--bd-intro-title);
  font-size: 0.98rem;
  font-weight: 800;
  line-height: 1.35;
}

.bd-intro-level-card__duration {
  color: var(--bd-intro-primary-strong);
  font-size: 0.8rem;
  font-weight: 700;
}

.bd-intro-level-card p {
  margin: 0;
  flex: 1;
  color: var(--bd-intro-text-soft);
  font-size: 0.88rem;
  line-height: 1.62;
}

.bd-intro-level-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.35rem 0 0;
  padding: 0;
  list-style: none;
}

.bd-intro-level-card__tags li {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(137, 159, 191, 0.16);
  color: var(--bd-intro-text-soft);
  font-size: 0.72rem;
  font-weight: 700;
}

/* Platform strip */
.bd-intro-platform__strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-intro-platform__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  padding: 1.1rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(42, 109, 246, 0.12);
  background: linear-gradient(160deg, #ffffff, #eef4ff);
  text-align: center;
}

.bd-intro-platform__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--bd-intro-primary-soft);
  color: var(--bd-intro-primary);
}

.bd-intro-platform__item strong {
  color: var(--bd-intro-title);
  font-size: 0.98rem;
}

.bd-intro-platform__item span:last-child {
  color: var(--bd-intro-text-soft);
  font-size: 0.85rem;
  line-height: 1.55;
}

/* Features */
.bd-intro-features__group + .bd-intro-features__group {
  margin-top: 1.35rem;
  padding-top: 1.35rem;
  border-top: 1px solid rgba(137, 159, 191, 0.12);
}

.bd-intro-features__group-title {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.85rem;
  color: var(--bd-intro-title);
  font-size: 1.05rem;
  font-weight: 800;
}

.bd-intro-features__group-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--bd-intro-primary-soft);
  color: var(--bd-intro-primary);
}

.bd-intro-features__grid,
.bd-intro-games__grid,
.bd-intro-benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.bd-intro-feature-card,
.bd-intro-game-card,
.bd-intro-benefit {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 100%;
  padding: 1.1rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.14);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 255, 0.88));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.bd-intro-feature-card:hover,
.bd-intro-game-card:hover,
.bd-intro-benefit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(24, 44, 76, 0.08);
}

.bd-intro-feature-card__icon,
.bd-intro-game-card__icon,
.bd-intro-benefit__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--bd-intro-accent, #2a6df6) 12%, white);
  color: var(--bd-intro-accent, #2a6df6);
}

.bd-intro-feature-card h4,
.bd-intro-game-card h3,
.bd-intro-benefit h3 {
  margin: 0;
  color: var(--bd-intro-title);
  font-size: 0.96rem;
  font-weight: 800;
  line-height: 1.35;
}

.bd-intro-feature-card p,
.bd-intro-game-card p,
.bd-intro-benefit p {
  margin: 0;
  color: var(--bd-intro-text-soft);
  font-size: 0.88rem;
  line-height: 1.62;
}

/* Showcases */
.bd-intro-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(200px, 280px);
  gap: 1.25rem;
  align-items: center;
  padding: 1.15rem;
  margin-bottom: 0.9rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.12);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(238, 244, 255, 0.82));
}

.bd-intro-showcase:last-child {
  margin-bottom: 0;
}

.bd-intro-showcase.is-reverse {
  grid-template-columns: minmax(200px, 280px) minmax(0, 1.15fr);
}

.bd-intro-showcase.is-reverse .bd-intro-showcase__copy {
  order: 2;
}

.bd-intro-showcase.is-reverse .bd-intro-showcase__visual {
  order: 1;
}

.bd-intro-showcase__copy h3 {
  margin: 0 0 0.65rem;
  color: var(--bd-intro-title);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.3;
}

.bd-intro-showcase__copy > p {
  margin: 0 0 0.85rem;
  color: var(--bd-intro-text-soft);
  line-height: 1.7;
}

.bd-intro-showcase__bullets {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-intro-showcase__bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin-bottom: 0.45rem;
  color: var(--bd-intro-text);
  font-size: 0.9rem;
  line-height: 1.55;
}

.bd-intro-showcase__bullet-icon {
  display: inline-flex;
  flex: 0 0 auto;
  margin-top: 0.1rem;
  color: var(--bd-intro-accent, var(--bd-intro-success));
}

.bd-intro-showcase__bullet-icon .bd-intro-icon {
  width: 16px;
  height: 16px;
}

.bd-intro-showcase__visual-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 180px;
  padding: 1.25rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px dashed color-mix(in srgb, var(--bd-intro-accent, #2a6df6) 24%, white);
  background: color-mix(in srgb, var(--bd-intro-accent, #2a6df6) 6%, white);
}

.bd-intro-showcase__visual-icon {
  width: 56px;
  height: 56px;
  color: var(--bd-intro-accent, #2a6df6);
}

.bd-intro-showcase__visual-card span {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--bd-intro-title);
}

/* Journey */
.bd-intro-journey__list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-intro-journey__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1rem 1.1rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.12);
  background: rgba(255, 255, 255, 0.82);
}

.bd-intro-journey__marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--bd-intro-success), #15966d);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 800;
}

.bd-intro-journey__body h3 {
  margin: 0 0 0.35rem;
  color: var(--bd-intro-title);
  font-size: 1rem;
  font-weight: 800;
}

.bd-intro-journey__body p {
  margin: 0;
  color: var(--bd-intro-text-soft);
  line-height: 1.65;
}

/* Pillars */
.bd-intro-pillars__list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bd-intro-pillar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1rem 1.1rem;
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.14);
  background: rgba(255, 255, 255, 0.82);
}

.bd-intro-pillar__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--bd-intro-primary), var(--bd-intro-primary-strong));
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 800;
}

.bd-intro-pillar h3 {
  margin: 0 0 0.35rem;
  color: var(--bd-intro-title);
  font-size: 1rem;
  font-weight: 800;
}

.bd-intro-pillar p {
  margin: 0;
  color: var(--bd-intro-text-soft);
  line-height: 1.65;
}

/* Sync table */
.bd-intro-sync__table-wrap {
  overflow-x: auto;
}

.bd-intro-sync__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.bd-intro-sync__table th,
.bd-intro-sync__table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(137, 159, 191, 0.14);
  text-align: center;
}

.bd-intro-sync__table thead th {
  color: var(--bd-intro-title);
  font-weight: 800;
  background: rgba(238, 244, 255, 0.7);
}

.bd-intro-sync__table tbody th {
  text-align: start;
  color: var(--bd-intro-text);
  font-weight: 700;
}

.bd-intro-sync__yes {
  display: inline-flex;
  color: var(--bd-intro-success);
}

.bd-intro-sync__yes .bd-intro-icon {
  width: 20px;
  height: 20px;
}

.bd-intro-sync__no {
  color: var(--bd-intro-text-soft);
}

/* FAQ */
.bd-intro-faq__list {
  display: grid;
  gap: 0.65rem;
}

.bd-intro-faq__item {
  border-radius: var(--bd-intro-radius-md);
  border: 1px solid rgba(137, 159, 191, 0.14);
  background: rgba(255, 255, 255, 0.88);
  overflow: hidden;
}

.bd-intro-faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
}

.bd-intro-faq__item summary::-webkit-details-marker {
  display: none;
}

.bd-intro-faq__question {
  color: var(--bd-intro-title);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.45;
}

.bd-intro-faq__toggle {
  display: inline-flex;
  flex: 0 0 auto;
  color: var(--bd-intro-primary);
  transition: transform 0.22s ease;
}

.bd-intro-faq__item[open] .bd-intro-faq__toggle {
  transform: rotate(180deg);
}

.bd-intro-faq__answer {
  padding: 0 1.1rem 1rem;
}

.bd-intro-faq__answer p {
  margin: 0;
  color: var(--bd-intro-text-soft);
  line-height: 1.72;
}

/* Cross promo */
.bd-intro-cross {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(160px, 220px);
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.25rem;
  padding: clamp(1.25rem, 2.5vw, 1.85rem);
  border-radius: var(--bd-intro-radius-lg);
  border: 1px solid rgba(42, 109, 246, 0.16);
  background: linear-gradient(135deg, rgba(238, 244, 255, 0.95), rgba(255, 255, 255, 0.92));
  box-shadow: var(--bd-intro-shadow-soft);
}

.bd-intro-cross p {
  margin: 0 0 1rem;
  max-width: 52ch;
  color: var(--bd-intro-text-soft);
  line-height: 1.7;
}

.bd-intro-cross__visual {
  display: grid;
  place-items: center;
  min-height: 140px;
  border-radius: var(--bd-intro-radius-md);
  background: rgba(255, 255, 255, 0.72);
  border: 1px dashed rgba(42, 109, 246, 0.18);
}

.bd-intro-cross__visual-icon {
  width: 64px;
  height: 64px;
  color: var(--bd-intro-primary);
}

/* CTA */
.bd-intro-cta {
  position: relative;
  z-index: 1;
  padding: clamp(1.6rem, 3.2vw, 2.25rem);
  border-radius: var(--bd-intro-radius-lg);
  border: 1px solid rgba(42, 109, 246, 0.18);
  background: linear-gradient(135deg, var(--bd-intro-primary), var(--bd-intro-primary-strong));
  box-shadow: 0 20px 44px rgba(42, 109, 246, 0.24);
  text-align: center;
}

.bd-intro-cta h2,
.bd-intro-cta p {
  color: #ffffff;
}

.bd-intro-cta p {
  margin: 0 auto 1.15rem;
  max-width: 56ch;
  opacity: 0.92;
  line-height: 1.7;
}

.bd-intro-cta__actions {
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.bd-intro-cta .bd-intro-btn.is-primary {
  background: #ffffff;
  color: var(--bd-intro-primary-strong);
  box-shadow: 0 12px 24px rgba(16, 41, 68, 0.16);
}

.bd-intro-cta__note {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.875rem;
}

/* RTL */
.bd-intro-page[dir="rtl"] .bd-intro-btn .bd-intro-icon {
  transform: scaleX(-1);
}

/* Responsive */
@media (max-width: 1080px) {
  .bd-intro-ecosystem__grid,
  .bd-intro-levels__grid,
  .bd-intro-features__grid,
  .bd-intro-games__grid,
  .bd-intro-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .bd-intro-hero,
  .bd-intro-cross,
  .bd-intro-showcase {
    grid-template-columns: 1fr;
  }

  .bd-intro-showcase.is-reverse .bd-intro-showcase__copy,
  .bd-intro-showcase.is-reverse .bd-intro-showcase__visual {
    order: unset;
  }

  .bd-intro-hero__visual {
    min-height: 220px;
  }

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

  .bd-intro-platform__strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .bd-intro-page {
    margin-inline: 0.75rem;
  }

  .bd-intro-page__shell {
    padding: 1rem;
    border-radius: 24px;
  }

  .bd-intro-hero__actions {
    flex-direction: column;
  }

  .bd-intro-btn {
    width: 100%;
  }

  .bd-intro-ecosystem__grid,
  .bd-intro-levels__grid,
  .bd-intro-features__grid,
  .bd-intro-games__grid,
  .bd-intro-benefits__grid,
  .bd-intro-stats__grid {
    grid-template-columns: 1fr;
  }

  .bd-intro-ecosystem,
  .bd-intro-levels,
  .bd-intro-features,
  .bd-intro-games,
  .bd-intro-showcases,
  .bd-intro-journey,
  .bd-intro-pillars,
  .bd-intro-sync,
  .bd-intro-benefits,
  .bd-intro-faq,
  .bd-intro-platform {
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bd-intro-btn,
  .bd-intro-feature-card,
  .bd-intro-game-card,
  .bd-intro-benefit,
  .bd-intro-reveal,
  .bd-intro-faq__toggle {
    transition: none;
  }

  .bd-intro-btn:hover,
  .bd-intro-feature-card:hover,
  .bd-intro-game-card:hover,
  .bd-intro-benefit:hover {
    transform: none;
  }

  .bd-intro-reveal {
    opacity: 1;
    transform: none;
  }
}