.cb-engine-section {
  --engine-border: #dfe5f4;
  padding: 96px 0 72px;
  border-block: 1px solid #e9edf6;
  background: linear-gradient(145deg, #f7f9ff, #fcfcff 60%, #f3f6ff);
  scroll-margin-top: 96px;
}

.cb-engine-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 64px;
}

.cb-engine-copy,
.cb-engine-architecture,
.cb-engine-bottom > div {
  min-width: 0;
}

.cb-engine-copy .eyebrow {
  font-size: 11px;
  letter-spacing: 0.12em;
}

.cb-engine-copy .section-title {
  font-size: clamp(32px, 3.4vw, 44px);
  line-height: 1.3;
}

.cb-engine-description {
  margin: 22px 0 28px;
  color: #626e85;
  font-size: 18px;
  line-height: 1.85;
}

.cb-engine-description strong {
  color: #2e3b59;
}

.cb-engine-name {
  max-width: 420px;
  padding: 23px 0 0;
  border-top: 1px solid var(--engine-border);
}

.cb-engine-wordmark {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: clamp(44px, 5vw, 64px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.065em;
}

.cb-engine-wordmark > span {
  color: #243455;
}

.cb-engine-equation {
  display: flex;
  align-items: center;
  gap: 22px;
}

.cb-engine-equation > div {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.cb-engine-equation strong {
  color: #344563;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.cb-engine-equation > div > span {
  color: #67738b;
  font-size: 13px;
}

.cb-engine-plus {
  color: var(--primary);
  font-size: 24px;
  line-height: 1;
}

.cb-engine-name-note {
  margin: 13px 0 0;
  color: #6a7790;
  font-size: 12px;
  letter-spacing: 0;
}

.cb-engine-architecture {
  margin: 0;
  padding: 26px;
  border: 1px solid var(--engine-border);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(45, 65, 120, 0.06);
}

.cb-engine-architecture-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #4f6082;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.cb-engine-architecture-head > span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.cb-engine-architecture-head .bi {
  color: var(--primary);
  font-size: 16px;
}

.cb-engine-architecture-type {
  padding: 3px 9px;
  border-radius: 6px;
  background: #f1f4fb;
  color: #67748d;
  font-size: 10px;
  letter-spacing: 0;
}

.cb-engine-architecture-title {
  margin: 22px 0;
  color: #78839a;
  font-size: 23px;
  line-height: 1.45;
  letter-spacing: -0.04em;
}

.cb-engine-architecture-title strong {
  color: #243455;
}

.cb-engine-layers,
.cb-engine-layer-tags {
  margin: 0;
  padding: 0;
  list-style: none;
}

.cb-engine-layers {
  display: grid;
  gap: 10px;
}

.cb-engine-layer {
  padding: 18px 20px;
  border: 1px solid var(--engine-border);
  border-radius: 14px;
}

.cb-engine-layer-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cb-engine-layer-title > .bi {
  color: var(--primary);
  font-size: 17px;
}

.cb-engine-layer-title strong {
  color: #344563;
  font-size: 15px;
}

.cb-engine-layer-title > span {
  margin-left: auto;
  color: #6c7da0;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.cb-engine-layer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}

.cb-engine-layer-tags > li {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  border-radius: 6px;
  background: #f0f3fb;
  color: #53627d;
  font-size: 12px;
  line-height: 1.5;
}

.cb-engine-layer--custom {
  border-color: #cfd9ff;
  background: #f2f5ff;
}

.cb-engine-layer--custom .cb-engine-layer-tags > li {
  border: 1px solid #e0e7ff;
  background: #fff;
}

.cb-engine-layer--core {
  border-color: var(--primary);
  background: var(--primary);
}

.cb-engine-layer--core .cb-engine-layer-title strong,
.cb-engine-layer--core .cb-engine-layer-title > .bi,
.cb-engine-layer--core .cb-engine-layer-title > span {
  color: #fff;
}

.cb-engine-layer--core .cb-engine-layer-tags > li {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.cb-engine-architecture figcaption {
  margin-top: 17px;
  color: #6a7790;
  font-size: 12px;
  text-align: center;
}

.cb-engine-improvements {
  margin-top: 54px;
  padding-top: 34px;
  border-top: 1px solid var(--engine-border);
}

.cb-engine-improvements-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 24px;
}

.cb-engine-improvements-head h3 {
  margin: 0;
  color: #263755;
  font-size: 24px;
  line-height: 1.5;
  letter-spacing: -0.04em;
}

.cb-engine-improvements-head h3 > span {
  color: var(--primary-dark);
}

.cb-engine-improvements-head > p {
  flex: 0 1 420px;
  margin: 0;
  color: #69758b;
  font-size: 13px;
  line-height: 1.8;
}

.cb-engine-mobile-break {
  display: none;
}

.cb-engine-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cb-engine-card {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--engine-border);
  border-radius: 20px;
  background: #fff;
}

.cb-engine-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 19px;
}

.cb-engine-card-icon {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid #e1e7ff;
  border-radius: 12px;
  background: #f3f5ff;
  color: var(--primary);
  font-size: 18px;
}

.cb-engine-card-index {
  color: #71809b;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.cb-engine-before {
  margin: 0 0 14px;
  color: #6b768a;
  font-size: 14px;
  line-height: 1.6;
}

.cb-engine-change {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px solid #edf0f7;
  color: var(--primary-dark);
  font-size: 11px;
  font-weight: 700;
}

.cb-engine-card h4 {
  margin: 9px 0 11px;
  color: #263755;
  font-size: 19px;
  line-height: 1.5;
  letter-spacing: -0.04em;
}

.cb-engine-after {
  margin: 0;
  color: #68758d;
  font-size: 14px;
  line-height: 1.8;
}

.cb-engine-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 28px;
  padding: 23px 26px;
  border: 1px solid var(--engine-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
}

.cb-engine-bottom p {
  margin: 0 0 4px;
  color: #344563;
  font-size: 16px;
}

.cb-engine-bottom p strong {
  color: #243455;
}

.cb-engine-bottom > div > span {
  color: #69758b;
  font-size: 12px;
}

.cb-engine-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 22px;
}

.cb-engine-actions .btn {
  font-size: 14px;
}

.cb-engine-security-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 5px;
  color: #536482;
  font-size: 13px;
  font-weight: 700;
}

.cb-engine-security-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.cb-engine-actions a:focus-visible {
  outline: 3px solid var(--primary-dark);
  outline-offset: 4px;
}

@media (max-width: 1100px) {
  .cb-engine-intro {
    gap: 36px;
  }

  .cb-engine-copy .section-title {
    font-size: 36px;
  }

  .cb-engine-description {
    font-size: 16px;
  }

  .cb-engine-equation {
    gap: 16px;
  }

  .cb-engine-equation > div {
    flex-direction: column;
    gap: 0;
  }

  .cb-engine-layer {
    padding: 16px;
  }

  .cb-engine-improvements-head {
    display: block;
  }

  .cb-engine-improvements-head > p {
    margin-top: 10px;
    font-size: 14px;
  }

  .cb-engine-improvements-head .cb-engine-desktop-break {
    display: none;
  }

  .cb-engine-card {
    padding: 22px;
  }

  .cb-engine-card h4 {
    font-size: 18px;
  }

  .cb-engine-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 820px) {
  .cb-engine-section {
    padding: 64px 0 56px;
  }

  .cb-engine-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .cb-engine-copy .section-title {
    font-size: 38px;
  }

  .cb-engine-description {
    max-width: 560px;
    font-size: 17px;
  }

  .cb-engine-copy .cb-engine-desktop-break {
    display: none;
  }

  .cb-engine-equation > div {
    flex-direction: row;
    gap: 9px;
  }

  .cb-engine-architecture {
    width: 100%;
    max-width: 560px;
    justify-self: center;
  }

  .cb-engine-improvements {
    margin-top: 36px;
    padding-top: 28px;
  }

  .cb-engine-cards {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .cb-engine-card h4 {
    font-size: 20px;
  }

  .cb-engine-card-head {
    margin-bottom: 14px;
  }

  .cb-engine-actions {
    flex-wrap: wrap;
  }
}

@media (max-width: 560px) {
  .cb-engine-copy .eyebrow {
    gap: 7px;
    font-size: 10px;
    letter-spacing: 0.08em;
  }

  .cb-engine-copy .section-title {
    font-size: clamp(28px, 7.7vw, 36px);
    line-height: 1.35;
  }

  .cb-engine-description {
    margin: 18px 0 24px;
    font-size: 16px;
    line-height: 1.8;
  }

  .cb-engine-wordmark {
    font-size: 52px;
  }

  .cb-engine-equation {
    gap: 20px;
  }

  .cb-engine-equation > div {
    flex-direction: column;
    gap: 2px;
  }

  .cb-engine-architecture {
    padding: 20px 16px;
    border-radius: 20px;
  }

  .cb-engine-architecture-title {
    margin: 18px 0;
    font-size: 22px;
  }

  .cb-engine-layer {
    padding: 16px 14px;
  }

  .cb-engine-layer-title {
    flex-wrap: wrap;
    gap: 7px;
  }

  .cb-engine-layer-title strong {
    font-size: 14px;
  }

  .cb-engine-layer-title > span {
    font-size: 8px;
  }

  .cb-engine-layer-tags {
    gap: 6px;
  }

  .cb-engine-layer-tags > li {
    padding: 4px 7px;
    font-size: 11px;
  }

  .cb-engine-architecture figcaption {
    font-size: 11px;
    text-align: left;
  }

  .cb-engine-mobile-break {
    display: inline;
  }

  .cb-engine-improvements-head h3 {
    font-size: 23px;
  }

  .cb-engine-card {
    padding: 22px;
    border-radius: 16px;
  }

  .cb-engine-bottom {
    margin-top: 22px;
    padding: 20px;
  }

  .cb-engine-bottom p {
    line-height: 1.75;
  }

  .cb-engine-bottom p strong {
    display: block;
  }

  .cb-engine-actions {
    width: 100%;
    flex-direction: column-reverse;
    gap: 8px;
  }

  .cb-engine-actions .btn {
    width: 100%;
  }
}