/*
 * BS Reboot задає img { max-width: 100%; height: auto } — у порожній рамці висота стає 0.
 * Рамка з aspect-ratio + absolute img гарантують видиму площу.
 */
.intro-performance-split__thumb {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 14rem;
    aspect-ratio: 4 / 3;
}

.intro-performance-split__thumb > img.intro-performance-split__img {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    margin: 0;
    object-fit: cover;
    z-index: 0;
}

.intro-performance-split__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.intro-performance-split__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


.content-margin-notes__aside {
    align-self: start;
}

@media (min-width: 992px) {
    .content-margin-notes__aside {
        position: sticky;
        top: 2rem;
    }
}

.tips-interactive__badge {
    z-index: 20;
}

.tips-interactive__inner {
    z-index: 10;
}

.tips-interactive__panel {
    z-index: 50;
}

.tips-interactive__thumb {
    width: 4rem;
    height: 4rem;
}

.tips-interactive__thumb--sm {
    width: 3rem;
    height: 3rem;
}

.tips-interactive__panel--collapsed {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-1rem);
}

.tips-interactive__panel--open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* glossary wire — row nudge on hover */
.glossary-wire__row {
    transition: transform 0.18s ease;
}

.glossary-wire__row:hover {
    transform: translateX(3px);
}

.wire-reader-split__decor--alpha {
    top: 5rem;
    left: 2.5rem;
    width: 2.5rem;
    height: 2.5rem;
    animation-duration: 4s;
}

.wire-reader-split__decor--beta {
    top: 10rem;
    right: 5rem;
    width: 2rem;
    height: 2rem;
    animation-duration: 3s;
}

.wire-reader-split__decor--gamma {
    bottom: 8rem;
    left: 25%;
    width: 1.5rem;
    height: 1.5rem;
    animation-duration: 2s;
}

.wire-reader-split__decor--delta {
    bottom: 5rem;
    right: 33.333%;
    width: 3rem;
    height: 3rem;
    animation-duration: 5s;
    animation-delay: 1s;
}

.wire-reader-split__underline {
    width: 6rem;
    height: 0.25rem;
}

.wire-reader-split__sidebar {
    flex: 0 0 40%;
}

.wire-reader-split__index-badge {
    width: 2rem;
    height: 2rem;
}

.wire-reader-split__viewport {
    flex: 0 0 60%;
    height: fit-content;
}

.wire-reader-split__media {
    height: 12rem;
}

.wire-reader-split__img {
    object-fit: cover;
}
.wire-reader-split__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


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

@keyframes invite-boost-flare-throb-cycle {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}
.invite-boost__flare--throb {
    animation: invite-boost-flare-throb-cycle 2s cubic-bezier(.4,0,.6,1) infinite;
}

@keyframes invite-boost-flare-rebound-cycle {
    0%, 100% { transform: translateY(0); animation-timing-function: cubic-bezier(.8,0,1,1); }
    50%       { transform: translateY(-25%); animation-timing-function: cubic-bezier(0,0,.2,1); }
}
.invite-boost__flare--rebound {
    animation: invite-boost-flare-rebound-cycle 1s infinite;
}

@keyframes invite-boost-flare-ping-cycle {
    75%, 100% { transform: scale(2); opacity: 0; }
}
.invite-boost__flare--ping {
    animation: invite-boost-flare-ping-cycle 1s cubic-bezier(0,0,.2,1) infinite;
}

@keyframes invite-boost-stroke-throb-cycle {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}
.invite-boost__stroke--throb {
    animation: invite-boost-stroke-throb-cycle 2s cubic-bezier(.4,0,.6,1) infinite;
}

.invite-boost__layer--lift:hover { transform: scale(1.05); transition: transform .2s ease; }

.invite-boost__flare--lift:hover { transform: scale(1.25); transition: transform .2s ease; }

.invite-boost__action--lift:hover { transform: scale(1.05); transition: transform .2s ease; }