.intro-subtitle-content {
    max-width: 56rem;
}

.lane-card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.lane-card-overlay,
.lane-card-accent,
.lane-card-icon {
    transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.lane-card-hover:hover {
    transform: translateY(-0.35rem);
    box-shadow: var(--bs-box-shadow-lg);
    border-color: rgba(var(--bs-primary-rgb), 0.35) !important;
}

.lane-card-hover:hover .lane-card-overlay {
    opacity: 1 !important;
}

.lane-card-hover:hover .lane-card-accent {
    opacity: 0.75;
}

.lane-card-hover:hover .lane-card-icon {
    transform: scale(1.05);
    box-shadow: var(--bs-box-shadow);
}

.feature-card-surface {
    position: relative;
    isolation: isolate;
    background: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color-translucent);
    box-shadow: var(--bs-box-shadow-sm);
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.feature-card-surface:hover {
    box-shadow: var(--bs-box-shadow-lg);
    border-color: rgba(var(--bs-primary-rgb), 0.3);
}

/* -- 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);
}
/* whyus v19 — fluid clamp() heading (Tailwind has no bare clamp() utility) */
.whyus-glitch-stack__heading {
    font-size: clamp(1.75rem, 1.3rem + 1.8vw, 3rem);
    font-weight: 900;
    line-height: 1.1;
}

/* Geometry shared by both CSS frameworks (Bootstrap has no utilities for it) */
.mxw-3xl {
    max-width: 48rem !important;
}

.whyus-glitch-stack__head,
.whyus-glitch-stack__media {
    margin: 0 0 2.5rem;
}

.whyus-glitch-stack__media-img {
    height: 16rem;
}

.whyus-glitch-stack__card--offset {
    margin-top: 2.5rem;
}

.whyus-glitch-stack__card-title {
    font-size: 1.125rem;
}

/* sticky reading-progress bar — JS sets --wpg-progress (0..1), CSS turns it into a scaleX */
.whyus-glitch-stack__progress {
    height: 0.25rem;
    overflow: hidden;
}

.whyus-glitch-stack__progress-fill {
    transform: scaleX(var(--wpg-progress, 0));
    transform-origin: left center;
    will-change: transform;
}

/* responsive art-direction crop for the section hero image (BS has no object-fit util) */
.whyus-glitch-stack__media-img {
    object-fit: cover;
    object-position: center;
}

@media (min-width: 768px) {
    .whyus-glitch-stack__media-img {
        height: 20rem;
        object-position: center 35%;
    }
}

/* scale-up-on-load reveal, staggered per card by JS (IntersectionObserver adds is-visible) */
.whyus-glitch-stack__reveal {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 550ms ease, transform 550ms ease;
}

.whyus-glitch-stack__reveal.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* cursor-follow spotlight — currentColor keeps this file color-free, opacity/lightness only */
.whyus-glitch-stack__card {
    isolation: isolate;
}

.whyus-glitch-stack__card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), currentColor, transparent 60%);
    opacity: 0;
    transition: opacity 200ms ease;
    pointer-events: none;
}

.whyus-glitch-stack__card:hover::after {
    opacity: 0.05;
}

/* cross-hatch corner marks — repeating-linear-gradient on currentColor, no hardcoded color */
.whyus-glitch-stack__hatch {
    width: 1.5rem;
    height: 1.5rem;
    pointer-events: none;
}

.whyus-glitch-stack__hatch::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(45deg, currentColor 0 1px, transparent 1px 4px);
    opacity: 0.6;
}

.whyus-glitch-stack__hatch--tl {
    top: 0;
    inset-inline-start: 0;
    clip-path: polygon(0 0, 100% 0, 0 100%);
}

.whyus-glitch-stack__hatch--br {
    bottom: 0;
    inset-inline-end: 0;
    clip-path: polygon(100% 100%, 100% 0, 0 100%);
}

/* native details marker rotates open/closed instead of the UA default triangle */
.whyus-glitch-stack__summary {
    list-style: none;
    cursor: pointer;
}

.whyus-glitch-stack__summary::-webkit-details-marker {
    display: none;
}

.whyus-glitch-stack__chevron {
    transition: transform 200ms ease;
}

details[open] > .whyus-glitch-stack__summary .whyus-glitch-stack__chevron {
    transform: rotate(45deg);
}

@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; }