.intro-instructor__media {
    width: 20rem;
    height: 24rem;
}

.intro-instructor__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


/* process tron — grid bg pattern, card glow line, hover + active state */
.process-tron__grid-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.35;
    background-image:
        linear-gradient(currentColor 1px, transparent 1px),
        linear-gradient(90deg, currentColor 1px, transparent 1px);
    background-size: 3rem 3rem;
}

.process-tron__card {
    cursor: pointer;
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.process-tron__card-hov:hover,
.process-tron__card-hov:focus-within,
.process-tron__card.is-active {
    transform: translateY(-0.35rem);
    box-shadow: var(--bs-box-shadow-lg);
    border-color: var(--bs-primary);
}

.process-tron__glow-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--bs-primary);
    opacity: 0;
    transition: opacity 220ms ease;
}

.process-tron__card-hov:hover .process-tron__glow-line,
.process-tron__card-hov:focus-within .process-tron__glow-line,
.process-tron__card.is-active .process-tron__glow-line {
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    .process-tron__card {
        transition: none;
    }

    .process-tron__card-hov:hover,
    .process-tron__card-hov:focus-within,
    .process-tron__card.is-active {
        transform: none;
    }
}

/* Block: advantages-tabs-image-panel */
.advantages-tabs-image-panel__tab--hover:hover {
    transform: scale(1.05);
}

.advantages-tabs-image-panel__tab {
    /* BS: без border-0 (він дає border:0 !important і гасить border-bottom). Бокові рамки прибираємо тут. */
    border-style: solid;
    border-width: 0;
    border-bottom-width: 2px;
    border-bottom-color: transparent;
    box-shadow: none;
    background-clip: padding-box;
    transition: border-color 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
}

.advantages-tabs-image-panel__tab:hover {
    /* Повна нижня лінія — надійніше за лише color, якщо десь перебито width */
    border-bottom: 2px solid var(--bs-emphasis-color, var(--bs-body-color, currentColor));
}

.advantages-tabs-image-panel__tab:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.advantages-tabs-image-panel__tab:not(.advantages-tabs-image-panel__tab--active) {
    opacity: 0.65;
}

/* Не покладатися на Tailwind .hidden — у Bootstrap її немає */
.advantages-tabs-image-panel__panel--hidden {
    display: none !important;
}

.advantages-tabs-image-panel__panel {
    animation: advantages-tabs-image-panel-panel-fade-kf 0.3s ease;
}

.advantages-tabs-image-panel__panel.advantages-tabs-image-panel__panel--visible {
    animation: advantages-tabs-image-panel-panel-fade-kf 0.3s ease;
}

@keyframes advantages-tabs-image-panel-panel-fade-kf {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-trio-showcase__image {
    display: block;
    width: 100%;
    height: 10rem;
    object-fit: cover;
}

.content-trio-showcase__image--tall {
    height: 14rem;
}

.content-trio-showcase__image--short {
    height: 8rem;
}

.content-trio-showcase__card-lift {
    transition: transform 180ms ease;
}

.content-trio-showcase__card-lift:hover {
    transform: translateY(-0.25rem);
}

.content-trio-showcase__float {
    animation: content-trio-showcase-float 7s ease-in-out infinite;
}

.content-trio-showcase__rail {
    width: 100%;
    height: 0.25rem;
}

.content-trio-showcase__thumb {
    width: 7rem;
    height: 5rem;
}

.content-trio-showcase__badge {
    width: 2.5rem;
    height: 2.5rem;
}

@media (min-width: 768px) {
    .content-trio-showcase__rail {
        width: 0.25rem;
        height: auto;
    }
}

@keyframes content-trio-showcase-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(0.5rem); }
}

.content-trio-showcase__dot {
    width: 0.5rem;
    height: 0.5rem;
}

.content-trio-showcase__float {
    width: 6rem;
    height: 6rem;
}

@media (min-width: 768px) {
    .content-trio-showcase__offset {
        margin-top: 2.5rem;
    }
}


.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; }