.intro-split-icon {
    width: 3rem;
    height: 3rem;
}

/* Як TW: w-64 → sm:w-80 → lg:w-96 (одна шкала для обох фреймворків) */
.intro-split-thumb {
    width: 16rem;
    height: 16rem;
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .intro-split-thumb {
        width: 20rem;
        height: 20rem;
    }
}

@media (min-width: 1024px) {
    .intro-split-thumb {
        width: 24rem;
        height: 24rem;
    }
}

/* Bootstrap: flex + gap (no .row negative margins; works with section overflow). Tailwind grid ignores flex on items. */
@media (min-width: 576px) {
    .intro-split-benefits__row > * {
        flex: 1 1 0%;
        min-width: 0;
    }
}

/* content gutter — bracket ticks share width */
.content-gutter__tick {
    width: 1px;
}

/* solo column: span full grid / row when second stack hidden */
.content-gutter__lead--span {
    grid-column: 1 / -1;
}

.features-tab-grid__decor--pulse {
    top: 0;
    right: 0;
    animation: features-tab-grid-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-tab-grid__decor--spin {
    bottom: 0;
    left: 0;
    animation: features-tab-grid-spin-kf 1s linear infinite;
}

.features-tab-grid__decor--bounce {
    top: 50%;
    left: 25%;
    transform: rotate(-6deg);
    animation: features-tab-grid-bounce-kf 1s infinite;
}

.features-tab-grid__decor--line {
    top: 33.333333%;
    right: 25%;
    transform: rotate(6deg);
}

.features-tab-grid__tab {
    cursor: pointer;
}

.features-tab-grid__tab--active {
    border-bottom-color: var(--bs-primary, #0d6efd);
    color: var(--bs-primary, #0d6efd);
}

.features-tab-grid__tab--inactive {
    border-bottom-color: transparent;
    color: inherit;
}

.features-tab-grid__tab:hover {
    border-bottom-color: var(--bs-primary, #0d6efd);
    opacity: 0.8;
}

.features-tab-grid__card {
    transition: all 0.3s ease;
}

.features-tab-grid__card:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.features-tab-grid__card:hover .features-tab-grid__title {
    color: var(--bs-primary, #0d6efd);
}

@keyframes features-tab-grid-pulse-kf {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

@keyframes features-tab-grid-spin-kf {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes features-tab-grid-bounce-kf {
    0%, 100% { transform: translateY(-25%) rotate(-6deg); animation-timing-function: cubic-bezier(0.8,0,1,1); }
    50% { transform: none; animation-timing-function: cubic-bezier(0,0,0.2,1); }
}

/* -- Feature card hover -- */
.feat-card-hover {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feat-card-hover:hover {
    transform: translateY(-3px);
    box-shadow: 0 0.5rem 1.5rem rgba(0,0,0,.12) !important;
}

/* -- Icon box sizing -- */
.feat-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-width: 2.5rem;
    min-height: 2.5rem;
}
.feat-icon-box--lg {
    width: 4rem;
    height: 4rem;
    border-radius: 0.75rem;
}
.feat-icon-box--xl {
    width: 5rem;
    height: 5rem;
    border-radius: 1rem;
}
.feat-icon-box--circle {
    border-radius: 50%;
}

/* -- Nav/filmstrip button hover -- */
.feat-btn-nav {
    transition: transform 0.15s ease, background-color 0.15s ease;
}
.feat-btn-nav:hover {
    transform: scale(1.1);
}

/* -- Table row hover -- */
.feat-table-row-hover {
    transition: background-color 0.15s ease;
}
.feat-table-row-hover:hover {
    background-color: var(--bs-primary-bg-subtle) !important;
}

/* -- Accordion item hover -- */
.feat-accordion-hover summary:hover {
    background-color: var(--bs-primary-bg-subtle);
    border-radius: 0.75rem;
}

/* -- DL item hover -- */
.feat-dl-item-hover {
    transition: background-color 0.15s ease;
    border-radius: 0.5rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}
.feat-dl-item-hover:hover {
    background-color: var(--bs-primary-bg-subtle);
}

/* -- Deck button hover -- */
.feat-deck-btn {
    transition: filter 0.2s ease, transform 0.15s ease;
}
.feat-deck-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

/* -- BS-mode decorative shapes � subtle, non-intrusive -- */
.features-decor__bs-blob {
    background-color: var(--bs-primary-bg-subtle);
    opacity: 0.35;
    filter: blur(48px);
}
.features-decor__bs-shape {
    opacity: 0.15;
}
.features-decor__bs-line {
    border-left: 1px solid var(--bs-primary-border-subtle);
    opacity: 0.18;
}
.staircase-cascade-quote__portrait {
    width: 5rem;
    height: 5rem;
}

.staircase-cascade-quote__step:nth-child(1) .staircase-cascade-quote__shadow {
    transform: translate(0, 0);
}

.staircase-cascade-quote__step:nth-child(2) .staircase-cascade-quote__shadow {
    transform: translate(16px, 16px);
}

.staircase-cascade-quote__step:nth-child(3) .staircase-cascade-quote__shadow {
    transform: translate(32px, 32px);
}

.staircase-cascade-quote__step:nth-child(4) .staircase-cascade-quote__shadow {
    transform: translate(48px, 48px);
}

.staircase-cascade-quote__step:nth-child(5) .staircase-cascade-quote__shadow {
    transform: translate(64px, 64px);
}

.staircase-cascade-quote__step:nth-child(6) .staircase-cascade-quote__shadow {
    transform: translate(80px, 80px);
}

.staircase-cascade-quote__step:nth-child(n + 7) .staircase-cascade-quote__shadow {
    transform: translate(96px, 96px);
}

/* faq flip-click — 3D card flip on click */
.faq-flip-click__outer {
  perspective: 1000px;
  min-height: 14rem;
}

.faq-flip-click__inner {
  position: relative;
  width: 100%;
  min-height: 14rem;
  transition: transform 600ms cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
  cursor: pointer;
}

.faq-flip-click__inner--flipped {
  transform: rotateY(180deg);
}

.faq-flip-click__face {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.faq-flip-click__face--back {
  transform: rotateY(180deg);
}

@media (prefers-reduced-motion: reduce) {
  .faq-flip-click__inner {
    transition: none;
  }
}


.pulse-boost__section {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.pulse-boost__inner {
    max-width: 72rem;
    width: 100%;
    box-sizing: border-box;
}

/* Bootstrap: col-* внутри d-flex без .row даёт неверную ширину и обрезание справа */
.pulse-boost__split-row-bs {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

@media (min-width: 1024px) {
    .pulse-boost__split-row-bs {
        flex-direction: row;
        align-items: center;
    }

    .pulse-boost__split-row-bs > * {
        flex: 1 1 0;
        min-width: 0;
        max-width: 50%;
        box-sizing: border-box;
    }
}

.pulse-boost__vessel--rise:hover { transform: scale(1.05); transition: transform .2s ease; }

@keyframes pulse-boost-highlight-throb-track {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}
.pulse-boost__highlight--throb {
    animation: pulse-boost-highlight-throb-track 2s cubic-bezier(.4,0,.6,1) infinite;
}

.pulse-boost__jump--rise:hover { transform: scale(1.05); transition: transform .2s ease; }

.pulse-boost__control--rise:hover { transform: scale(1.05); transition: transform .2s ease; }