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

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


/* Features v24 — sidebar nav state */
.features-sidebar-nav__btn {
    transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
    border: none !important;
    outline: none;
    /* Left accent via inset box-shadow — reliable across all BS versions */
    box-shadow: inset 3px 0 0 transparent;
}

.features-sidebar-nav__btn.features-sidebar-nav__btn--active {
    background-color: var(--bs-primary-bg-subtle);
    color: var(--bs-primary) !important;
    box-shadow: inset 3px 0 0 var(--bs-primary);
    font-weight: 700;
}

.features-sidebar-nav__btn.features-sidebar-nav__btn--idle {
    background-color: transparent;
    color: var(--bs-body-color);
    box-shadow: inset 3px 0 0 transparent;
    font-weight: 400;
}

.features-sidebar-nav__btn.features-sidebar-nav__btn--idle:hover {
    background-color: var(--bs-secondary-bg);
    color: var(--bs-emphasis-color);
    box-shadow: inset 3px 0 0 var(--bs-primary-bg-subtle);
}

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

@keyframes features-sidebar-nav-bounce-kf {
    0%, 100% { transform: translateY(-25%); animation-timing-function: cubic-bezier(0.8,0,1,1); }
    50% { transform: none; animation-timing-function: cubic-bezier(0,0,0.2,1); }
}

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

.features-sidebar-nav__decor--pulse {
    filter: blur(48px);
    animation: features-sidebar-nav-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-sidebar-nav__decor--bounce {
    transform: rotate(45deg);
    animation: features-sidebar-nav-bounce-kf 1s infinite;
}

.features-sidebar-nav__decor--spin {
    animation: features-sidebar-nav-spin-kf 1s linear infinite;
}

.features-sidebar-nav__decor--pulse-rotated {
    transform: rotate(45deg);
    animation: features-sidebar-nav-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* -- 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);
}

/* -- BS-mode decorative shapes � subtle, non-intrusive -- */
.features-decor__bs-blob {
    background-color: var(--bs-primary-bg-subtle);
    opacity: 0.35;
    filter: blur(48px);
}
.features-decor__bs-shape {
    opacity: 0.15;
}
.features-decor__bs-line {
    border-left: 1px solid var(--bs-primary-border-subtle);
    opacity: 0.18;
}
/* Bootstrap: сетка 1→2 колонки + gap как у Tailwind (row + row-cols без col — слипание) */
.whyus-numbered-grid__grid-mb {
    margin-bottom: 2rem;
}

.whyus-numbered-grid__bs-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.5rem;
    width: 100%;
}

@media (min-width: 768px) {
    .whyus-numbered-grid__bs-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.5rem;
    }
}

.whyus-numbered-grid__subtitle-max {
    max-width: 42rem;
}

.whyus-numbered-grid__thumb {
    width: 4rem;
    height: 4rem;
    flex-shrink: 0;
}

.whyus-numbered-grid__badge {
    position: absolute;
    top: -0.5rem;
    right: -0.5rem;
    width: 1.5rem;
    height: 1.5rem;
}

.whyus-numbered-grid__divider {
    width: 6rem;
    height: 4px;
    margin-bottom: 2rem;
}

@keyframes floatParticle1 {
    0% { 
        transform: translate(-20px, -20px) scale(0.8);
        opacity: 0.3;
    }
    25% { 
        transform: translate(20px, -30px) scale(1.2);
        opacity: 0.8;
    }
    50% { 
        transform: translate(30px, 20px) scale(0.9);
        opacity: 0.5;
    }
    75% { 
        transform: translate(-10px, 30px) scale(1.1);
        opacity: 0.7;
    }
    100% { 
        transform: translate(-20px, -20px) scale(0.8);
        opacity: 0.3;
    }
}

@keyframes floatParticle2 {
    0% { 
        transform: translate(15px, 15px) scale(1.1);
        opacity: 0.4;
    }
    30% { 
        transform: translate(-25px, 10px) scale(0.7);
        opacity: 0.8;
    }
    60% { 
        transform: translate(-15px, -25px) scale(1.3);
        opacity: 0.3;
    }
    90% { 
        transform: translate(20px, -15px) scale(0.9);
        opacity: 0.6;
    }
    100% { 
        transform: translate(15px, 15px) scale(1.1);
        opacity: 0.4;
    }
}

@keyframes floatParticle3 {
    0% { 
        transform: translate(0px, 0px) scale(0.8);
        opacity: 0.2;
    }
    25% { 
        transform: translate(30px, -20px) scale(1.2);
        opacity: 0.6;
    }
    50% { 
        transform: translate(-20px, 30px) scale(0.9);
        opacity: 0.4;
    }
    75% { 
        transform: translate(-30px, -10px) scale(1.1);
        opacity: 0.7;
    }
    100% { 
        transform: translate(0px, 0px) scale(0.8);
        opacity: 0.2;
    }
}

@keyframes floatParticle4 {
    0% { 
        transform: translate(-10px, -10px) scale(1.3);
        opacity: 0.5;
    }
    40% { 
        transform: translate(25px, 15px) scale(0.6);
        opacity: 0.8;
    }
    80% { 
        transform: translate(-15px, 25px) scale(1.4);
        opacity: 0.3;
    }
    100% { 
        transform: translate(-10px, -10px) scale(1.3);
        opacity: 0.5;
    }
}

@keyframes floatParticle5 {
    0% { 
        transform: translate(20px, 20px) scale(0.9);
        opacity: 0.3;
    }
    35% { 
        transform: translate(-30px, 20px) scale(1.3);
        opacity: 0.7;
    }
    70% { 
        transform: translate(20px, -30px) scale(0.7);
        opacity: 0.4;
    }
    100% { 
        transform: translate(20px, 20px) scale(0.9);
        opacity: 0.3;
    }
}

@keyframes floatParticle6 {
    0% { 
        transform: translate(-15px, -15px) scale(1.0);
        opacity: 0.4;
    }
    50% { 
        transform: translate(20px, -25px) scale(0.8);
        opacity: 0.8;
    }
    100% { 
        transform: translate(-15px, -15px) scale(1.0);
        opacity: 0.4;
    }
}

.profile-float-icon {
    top: -3rem;
    right: -2rem;
}

@keyframes bounce-kf {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-25%); }
}

.profile-bounce {
    animation: bounce-kf 1s infinite;
}

.profile-card-hover,
.profile-icon-hover,
.profile-copy-hover,
.profile-underline,
.profile-cta-hover {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.profile-feature-group:hover .profile-card-hover {
    transform: scale(1.05);
}

.profile-feature-group:hover .profile-overlay-hover {
    opacity: 0.2 !important;
}

.profile-feature-group:hover .profile-icon-hover {
    transform: scale(1.1);
}

.profile-feature-group:hover .profile-copy-hover {
    transform: translateY(0.25rem);
}

.profile-underline {
    height: 0.25rem;
    transform: scaleX(0);
    transform-origin: center;
}

.profile-description-group:hover .profile-underline {
    transform: scaleX(1);
}

@keyframes ping-kf {
    75%, 100% {
        transform: scale(1.1);
        opacity: 0;
    }
}

.profile-ping {
    animation: ping-kf 1.2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.profile-cta-hover:hover {
    transform: scale(1.05);
}

.profile-particle-1 {
    top: 10%;
    left: 15%;
    animation: floatParticle1 8s ease-in-out infinite;
}

.profile-particle-2 {
    top: 20%;
    right: 20%;
    animation: floatParticle2 10s ease-in-out infinite;
    animation-delay: 1s;
}

.profile-particle-3 {
    top: 60%;
    left: 10%;
    animation: floatParticle3 12s ease-in-out infinite;
    animation-delay: 3s;
}

.profile-particle-4 {
    top: 80%;
    right: 15%;
    animation: floatParticle4 7s ease-in-out infinite;
    animation-delay: 2s;
}

.profile-particle-5 {
    top: 40%;
    left: 80%;
    animation: floatParticle5 9s ease-in-out infinite;
    animation-delay: 4s;
}

.profile-particle-6 {
    top: 70%;
    left: 60%;
    animation: floatParticle6 11s ease-in-out infinite;
    animation-delay: 1.5s;
}

.profile-sq-16 { width: 4rem;    height: 4rem;    flex-shrink: 0; }
.profile-sq-12 { width: 3rem;    height: 3rem;    flex-shrink: 0; }