@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;
}

.steps-number-icon-grid__number-badge {
    width: 4rem;
    height: 4rem;
}

.steps-number-icon-grid__icon-box {
    width: 5rem;
    height: 5rem;
}

.features-interactive-grid__card--hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.features-interactive-grid__card--hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 1rem 2rem rgba(0,0,0,.12) !important;
    border-color: rgba(var(--bs-primary-rgb), 0.35) !important;
}

.features-interactive-grid__decor--offset {
    top: 0;
    right: 0;
    transform: translate(1.5rem, -1.5rem);
    transition: transform 0.5s ease;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__decor--offset {
    transform: scale(1.25);
}

.features-interactive-grid__accent--hover {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__accent--hover {
    opacity: 0.6;
}

.features-interactive-grid__icon-wrap {
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    transition: transform 0.3s ease;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__icon-wrap {
    transform: rotate(12deg);
}

.features-interactive-grid__icon--hover {
    transition: transform 0.3s ease;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__icon--hover {
    transform: scale(1.1);
}

.features-interactive-grid__pulse--dot {
    animation: features-interactive-grid-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes features-interactive-grid-pulse-kf {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

.features-interactive-grid__title--hover {
    transition: color 0.3s ease;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__title--hover {
    /* TW group-hover:text-primary-400 equivalent */
}

.features-interactive-grid__line--hover {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    transition: all 0.5s ease;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__line--hover {
    width: 75%;
}

.features-interactive-grid__overlay--hover {
    opacity: 0;
    transition: opacity 0.3s ease;
    background-color: rgba(var(--bs-primary-rgb), 0.06) !important;
}
.features-interactive-grid__card--hover:hover .features-interactive-grid__overlay--hover {
    opacity: 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);
}
/* process polaroid — card rotation, frame aspect ratio, image fit */
.process-pol__card {
    transition: transform 200ms ease;
}
.process-pol__card--0 { transform: rotate(-2deg); }
.process-pol__card--1 { transform: rotate(1.5deg); }
.process-pol__card--2 { transform: rotate(-1deg); }
.process-pol__card--3 { transform: rotate(2.5deg); }
.process-pol__card--4 { transform: rotate(-1.5deg); }
.process-pol__card--5 { transform: rotate(2deg); }
.process-pol__card:hover {
    transform: rotate(0deg) scale(1.03);
    z-index: 1;
}
.process-pol__frame {
    aspect-ratio: 1;
    overflow: hidden;
}
.process-pol__img {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

/* faq v23 — card top ribbon (BS gradient parity) */
.faq-tile__ribbon {
  height: 0.25rem;
  background-image: linear-gradient(
    90deg,
    var(--bs-primary) 0%,
    var(--bs-info) 50%,
    var(--bs-danger) 100%
  );
}


.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; }