/*
 * 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;
}


.features-hud-panel__decor--pulse {
    top: -5rem;
    left: 33.333333%;
    animation: features-hud-panel-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-hud-panel__decor--spin {
    bottom: -6rem;
    right: 25%;
    animation: features-hud-panel-spin-kf 1s linear infinite;
}

.features-hud-panel__decor--bounce {
    top: 50%;
    right: 33.333333%;
    transform: rotate(45deg);
    animation: features-hud-panel-bounce-kf 1s infinite;
}

.features-hud-panel__decor--line {
    top: 33.333333%;
    right: 25%;
    transform: rotate(-12deg);
}

.features-hud-panel__grid-overlay {
    background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 36px 36px;
}

/* ── BS-mode: panel shell (colors live in template bg-dark) ── */
.features-hud-panel__bs-panel {
    min-width: 0;
}

.features-hud-panel__bs-accent-top {
    height: 2px;
    background: linear-gradient(to right, transparent, var(--bs-primary), transparent);
}

.features-hud-panel__bs-accent-bottom {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(var(--bs-primary-rgb), 0.4), transparent);
}

.features-hud-panel__bs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.features-hud-panel__bs-grid > figure {
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.features-hud-panel__bs-grid > figure:nth-child(2n) {
    border-right: none;
}

.features-hud-panel__bs-grid > figure:nth-last-child(-n+2):nth-child(2n+1),
.features-hud-panel__bs-grid > figure:nth-last-child(-n+2):nth-child(2n+1) ~ figure {
    border-bottom: none;
}

@media (max-width: 575.98px) {
    .features-hud-panel__bs-grid {
        grid-template-columns: 1fr;
    }
    .features-hud-panel__bs-grid > figure {
        border-right: none;
    }
    .features-hud-panel__bs-grid > figure:last-child {
        border-bottom: none;
    }
}

/* ── BS-mode decorative shapes ── */
.features-hud-panel__decor--bs-blob {
    background-color: var(--bs-primary-bg-subtle);
    opacity: 0.3;
    filter: blur(48px);
}

.features-hud-panel__decor--bs-shape {
    opacity: 0.12;
}

.features-hud-panel__decor--bs-line {
    border-left: 1px solid var(--bs-primary-border-subtle);
    opacity: 0.18;
}

.features-hud-panel__item {
    min-width: 0;
}

.features-hud-panel__dot--pulse {
    animation: features-hud-panel-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

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

@keyframes features-hud-panel-bounce-kf {
    0%, 100% { transform: translateY(-25%) rotate(45deg); 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);
}
.card-stack__accent--1 { width: 10rem; height: 10rem; filter: blur(2rem); }
.card-stack__accent--2 { width: 12rem; height: 12rem; filter: blur(2rem); }
.card-stack__accent--3 { width: 8rem; height: 8rem; filter: blur(1.5rem); }
.card-stack__accent--4 { width: 9rem; height: 9rem; filter: blur(2rem); }

.card-stack__title-line--1, .card-stack__title-line--2 {
    width: 5rem; height: 0.125rem; transform: translateY(-50%);
}
.card-stack__title-dot--1 { width: 0.5rem; height: 0.5rem; top: -0.5rem; right: -0.5rem; }
.card-stack__title-dot--2 { width: 0.5rem; height: 0.5rem; bottom: -0.5rem; left: -0.5rem; }

.card-stack__corner--tl { top: -0.5rem; left: -0.5rem; width: 1.5rem; height: 1.5rem; }
.card-stack__corner--tr { top: -0.5rem; right: -0.5rem; width: 1.5rem; height: 1.5rem; }
.card-stack__corner--bl { bottom: -0.5rem; left: -0.5rem; width: 1.5rem; height: 1.5rem; }
.card-stack__corner--br { bottom: -0.5rem; right: -0.5rem; width: 1.5rem; height: 1.5rem; }

.card-stack__corner--fade {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.card-stack__item:hover .card-stack__corner--fade {
    opacity: 1;
}

.card-stack__media--hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.1);
}
.card-stack__item:hover .card-stack__media--hover {
    transform: scale(1.05);
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.2);
}

.card-stack__decor--glow {
    background: radial-gradient(circle at center, rgba(var(--bs-primary-rgb), 0.2), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
}
.card-stack__item:hover .card-stack__decor--glow {
    opacity: 1;
}

.card-stack__img--zoom {
    transition: transform 0.5s ease;
}
.card-stack__item:hover .card-stack__img--zoom {
    transform: scale(1.1);
}

.card-stack__overlay--fade {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.card-stack__item:hover .card-stack__overlay--fade {
    opacity: 1;
}

.card-stack__overlay--dark {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.card-stack__item:hover .card-stack__overlay--dark {
    opacity: 1;
}

.card-stack__inner-corner--tl, .card-stack__inner-corner--br {
    width: 4rem; height: 4rem;
}

.card-stack__badge--shadow {
    transition: box-shadow 0.3s ease;
    box-shadow: 0 0.25rem 0.5rem rgba(0,0,0,0.1);
}
.card-stack__item:hover .card-stack__badge--shadow {
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}

.card-stack__accent-corner--tr { right: 0; width: 2rem; height: 2rem; opacity: 0; transition: opacity 0.3s ease; }
.card-stack__accent-corner--bl { left: 0; width: 2rem; height: 2rem; opacity: 0; transition: opacity 0.3s ease; }
.card-stack__item:hover .card-stack__accent-corner--tr,
.card-stack__item:hover .card-stack__accent-corner--bl {
    opacity: 1;
}

.card-stack__panel--slide {
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.card-stack__item:hover .card-stack__panel--slide {
    transform: translateY(0);
}

/* advantages editorial — decorative corner orb (size/position only, no colors) */
.advantages-editorial__orb {
    width: 22rem;
    height: 22rem;
    top: -6rem;
    right: -7rem;
}

/* FAQ v6 — JS hooks */
.guides-solver-content-tucked {
    display: none;
}

.guides-solver-symbol-reveal {
    transform: rotate(180deg);
}

/* Cluster positions */
.guides-solver__cluster-a { top: 4rem; left: 4rem; }
.guides-solver__cluster-b { bottom: 5rem; right: 5rem; }

/* Standalone dot positions and sizes */
.guides-solver__dot-a { top: 33%; left: 3rem; width: 0.5rem; height: 0.5rem; }
.guides-solver__dot-b { top: 66%; right: 4rem; width: 0.75rem; height: 0.75rem; }
.guides-solver__dot-c { top: 25%; right: 33%; width: 0.5rem; height: 0.5rem; }

/* Inner cluster child positions */
.guides-solver__accent--inner-a { top: 1rem; left: 1.5rem; width: 0.75rem; height: 0.75rem; }
.guides-solver__accent--inner-b { top: 2rem; left: 3rem; width: 0.5rem; height: 0.5rem; }
.guides-solver__accent--inner-c { top: -0.5rem; left: 2rem; width: 1rem; height: 1rem; }

/* Decorative lines */
.guides-solver__line-a { top: 0.25rem; left: 0.25rem; width: 1.5rem; height: 0.125rem; transform: rotate(45deg); }
.guides-solver__line-b { top: 1.25rem; left: 1.75rem; width: 2rem; height: 0.125rem; transform: rotate(12deg); }
.guides-solver__line-c { top: -0.75rem; left: -0.5rem; width: 2.5rem; height: 0.125rem; transform: rotate(-12deg); }
.guides-solver__line-d-pos { top: -0.25rem; left: 1rem; width: 1.5rem; height: 0.125rem; transform: rotate(45deg); }

/* Animation delays */
.guides-solver__accent--delay-1 { animation-delay: 0.3s; }
.guides-solver__accent--delay-2 { animation-delay: 0.5s; }
.guides-solver__accent--delay-4 { animation-delay: 1s; }
.guides-solver__accent--delay-5 { animation-delay: 1.3s; }
.guides-solver__accent--delay-6 { animation-delay: 1.6s; }
.guides-solver__accent--delay-7 { animation-delay: 1.8s; }

@keyframes guides-solver-accent-blink-seq {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}
.guides-solver__accent--blink {
    animation: guides-solver-accent-blink-seq 2s cubic-bezier(.4,0,.6,1) infinite;
}

@keyframes guides-solver-accent-ripple-seq {
    75%, 100% { transform: scale(2); opacity: 0; }
}
.guides-solver__accent--ripple {
    animation: guides-solver-accent-ripple-seq 1s cubic-bezier(0,0,.2,1) infinite;
}

.guides-solver__accent--offset { top: -1.5rem; left: -1rem; }

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

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