@keyframes driftLeftRight {
    0% { transform: translateX(-15%); }
    50% { transform: translateX(15%); }
    100% { transform: translateX(-15%); }
}

@keyframes driftRightLeft {
    0% { transform: translateX(15%); }
    50% { transform: translateX(-15%); }
    100% { transform: translateX(15%); }
}

.intro-drift-strip-a {
    width: 33%;
    height: 6rem;
    animation: driftLeftRight 14s ease-in-out infinite;
}

.intro-drift-strip-b {
    width: 50%;
    height: 4rem;
    animation: driftRightLeft 18s ease-in-out infinite;
}

.intro-drift-strip-c {
    width: 25%;
    height: 5rem;
    animation: driftLeftRight 12s ease-in-out infinite;
    animation-delay: 3s;
}

.intro-drift-container {
    max-width: 80rem;
}

.intro-drift-textbox {
    max-width: 48rem;
}

.steps-arrow-stack__badge-circle {
    width: 3rem;
    height: 3rem;
}

.steps-arrow-stack__icon-box {
    width: 2rem;
    height: 2rem;
}

.steps-arrow-stack__sm-circle {
    width: 1.5rem;
    height: 1.5rem;
}

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

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

.features-matrix-table__decor--pulse {
    animation: features-matrix-table-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-matrix-table__decor--bounce {
    transform: rotate(12deg);
    animation: features-matrix-table-bounce-kf 1s infinite;
}

.features-matrix-table__decor--spin {
    animation: features-matrix-table-spin-kf 1s linear infinite;
}

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

.features-matrix-table__row--hover:hover {
    background-color: var(--bs-primary-bg-subtle);
}

.features-matrix-table__row--hover:hover .features-matrix-table__title--hover {
    color: var(--bs-primary);
}

/* -- 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 */
.features-matrix-table__decor--bs-line-h {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--bs-primary-border-subtle), transparent);
    opacity: 0.4;
}
.features-matrix-table__decor--bs-shape {
    opacity: 0.15;
}
.tips-cards__card {
    max-width: 24rem;
}