.intro-animated-gradient__root {
    padding-top: clamp(4rem, 12vw, 10rem);
    padding-bottom: clamp(4rem, 12vw, 10rem);
    min-height: min(32rem, 85vh);
}

@keyframes intro-animated-gradient-spin {
    to {
        transform: rotate(360deg);
    }
}

.intro-animated-gradient__spin--left,
.intro-animated-gradient__spin--right {
    width: 85%;
    height: 85%;
    top: 7.5%;
    animation-name: intro-animated-gradient-spin;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    transform-origin: 50% 50%;
}

.intro-animated-gradient__spin--left {
    left: -18%;
    animation-duration: 48s;
}

.intro-animated-gradient__spin--right {
    right: -18%;
    animation-duration: 60s;
    animation-direction: reverse;
}

.intro-animated-gradient__area {
    max-width: 48rem;
}

/* Steps v29 — Split-Screen Steps with Sticky Icon Panel and Scrollable List */

/* Shared split-screen grid: sticky rail (narrow) + scrollable list (wide).
   No Bootstrap equivalent for an arbitrary grid-template-columns split,
   so this single custom class drives the layout in both TW and BS renders. */
.twin-pane__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
}

@media (min-width: 992px) {
    .twin-pane__grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
    }
}

/* Sticky icon/intro rail — position:sticky is standard CSS, framework-agnostic */
@media (min-width: 992px) {
    .twin-pane__rail {
        position: sticky;
        top: 6rem;
        align-self: flex-start;
    }
}

/* Fixed-size icon badge — no Bootstrap utility matches this exact box size */
.twin-pane__icon-box {
    width: 3rem;
    height: 3rem;
}

/* Remove trailing divider/spacing on the last step item (no BS :last-child utility) */
.twin-pane__item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}


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

.stackup-ledger__preview--glow:hover { transform: scale(1.1); transition: transform .2s ease; }

.stackup-ledger__mark--glow:hover { transform: scale(1.1); transition: transform .2s ease; }

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