@keyframes rotateSquare {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.intro-pattern-overlay {
    background-image: repeating-linear-gradient(45deg, transparent, transparent 20px, currentColor 20px, currentColor 40px);
    opacity: 0.03;
    top: -20%;
    left: -30%;
    width: 100%;
    height: 100%;
    animation: rotateSquare 20s linear infinite;
}

.intro-pattern-content {
    max-width: 56rem;
}

.services__tile--lift {
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.services__tile--lift:hover {
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

@media (min-width: 640px) {
  .services__tile--lift:hover {
    transform: scale(1.05);
  }
}

.services__cta--lift {
  transition: filter 0.3s ease, transform 0.3s ease;
}

@media (min-width: 640px) {
  .services__cta--lift:hover {
    transform: scale(1.05);
  }
}

.services__cta--lift:hover {
  filter: brightness(0.92);
}

.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;
}
/* process stack — sticky scroll layering, marker, oversized step numbers */
.process-stack__marker {
    width: 0.625rem;
    height: 0.625rem;
}

.process-stack__num {
    font-size: clamp(3.5rem, 11vw, 7.5rem);
    line-height: 0.85;
    letter-spacing: -0.04em;
}

@media (min-width: 768px) {
    .process-stack__slot {
        min-height: min(52vh, 26rem);
    }

    .process-stack__slot:last-child {
        min-height: 0;
    }

    .process-stack__panel {
        position: sticky;
        top: 5rem;
        z-index: calc(var(--stack-index, 0) + 1);
    }
}


.weighin-splitview__mosaic--glass { backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }

.weighin-splitview__tag--glass { backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }


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

.spark-boost__inner {
    min-height: 500px;
    display: flex;
    align-items: center;
}

@media (min-width: 768px) {
    .spark-boost__inner { min-height: 600px; }
}

/* Bootstrap: как у Tailwind p-sm → md:p-lg → lg:p-xl → xl:p-4xl (без фиксированных 6rem на мобиле) */
.spark-boost__vessel-bs {
    box-sizing: border-box;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .spark-boost__vessel-bs { padding: 1.5rem; }
}

@media (min-width: 992px) {
    .spark-boost__vessel-bs { padding: 2rem; }
}

@media (min-width: 1280px) {
    .spark-boost__vessel-bs { padding: 6rem; }
}

/* Bootstrap: две колонки + стабильный gap (row/g-* часто «съедаются» сбросами) */
.spark-boost__split-grid-bs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    width: 100%;
    box-sizing: border-box;
}

@media (min-width: 768px) {
    .spark-boost__split-grid-bs { gap: 1.5rem; }
}

.spark-boost__split-grid-bs > * {
    flex: 1 1 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

@media (min-width: 992px) {
    .spark-boost__split-grid-bs {
        flex-wrap: nowrap;
    }

    .spark-boost__split-grid-bs > * {
        flex: 1 1 0;
        max-width: 50%;
    }
}

.spark-boost__slab--glass { backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }

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

.spark-boost__prompt--glow:hover { transform: scale(1.05); transition: transform .2s ease; }

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

.spark-boost__surface--glow:hover { transform: scale(1.05); transition: transform .2s ease; }