/* intro v29 — Rolls-Royce thread: circle-expand reveal, half-ring, chat alignment, dual-layer parallax */

.intro-thread { min-height: 88vh; }

/* Clip-path circle expand from centre on load */
.intro-thread__reveal {
    animation: intro-thread-expand 900ms ease forwards;
}
@keyframes intro-thread-expand {
    from { clip-path: circle(0% at 50% 50%); }
    to   { clip-path: circle(150% at 50% 50%); }
}

/* Half-ring at the boundary (fixed size — no BS w-N/h-N utility) */
.intro-thread__half {
    width: 16rem;
    height: 8rem;
    opacity: 0.7;
    filter: blur(2px);
}
.intro-thread__sun { width: 6rem; height: 6rem; }
.intro-thread [data-msg] { max-width: 28rem; }

/* Dual-layer parallax offset (set by JS via custom props) */
.intro-thread__island [data-layer] {
    transition: transform 200ms ease-out;
    transform: translate(var(--px, 0), var(--py, 0));
}

/* Chat thread alternate alignment + retro corner tails */
.intro-thread [data-msg] { border-bottom-left-radius: 0.25rem; }
.intro-thread [data-msg]:nth-child(even) {
    margin-left: auto;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 0.25rem;
}

@media (prefers-reduced-motion: reduce) {
    .intro-thread__reveal { animation: none; }
    .intro-thread__island [data-layer] { transition: none; }
}

/* Вертикальний таймлайн — позиція рейки та вузлів */
.services__rail {
  position: absolute;
  left: 1.3rem;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 2px;
  background-color: var(--bs-border-color, #dee2e6);
  border-radius: 1px;
}

.dark .services__rail {
  background-color: rgba(148, 163, 184, 0.45);
}

.services__node {
  position: relative;
  padding-left: 3.5rem;
  padding-bottom: 1.5rem;
}

.services__node:last-child {
  padding-bottom: 0;
}

@media (max-width: 575.98px) {
  .services__node {
    padding-left: 3.25rem;
  }

  .services__rail {
    left: 1.4rem;
  }
}

.services__badge {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
}

@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;
}
/* Steps v29 — Split-Screen Steps with Sticky Icon Panel and Scrollable List */

/* Shared split-screen grid: sticky rail (narrow) + scrollable list (wide).
   No Bootstrap equivalent for an arbitrary grid-template-columns split,
   so this single custom class drives the layout in both TW and BS renders. */
.twin-pane__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
}

@media (min-width: 992px) {
    .twin-pane__grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
    }
}

/* Sticky icon/intro rail — position:sticky is standard CSS, framework-agnostic */
@media (min-width: 992px) {
    .twin-pane__rail {
        position: sticky;
        top: 6rem;
        align-self: flex-start;
    }
}

/* Fixed-size icon badge — no Bootstrap utility matches this exact box size */
.twin-pane__icon-box {
    width: 3rem;
    height: 3rem;
}

/* Remove trailing divider/spacing on the last step item (no BS :last-child utility) */
.twin-pane__item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}


@keyframes matrix-gridview-iconframe-throb-track {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}
.matrix-gridview__iconframe--throb {
    animation: matrix-gridview-iconframe-throb-track 2s cubic-bezier(.4,0,.6,1) infinite;
}

.cta-staircase__step-num {
  width: 3rem;
  height: 3rem;
  min-width: 3rem;
  min-height: 3rem;
  flex-shrink: 0;
}

.cta-staircase__stairs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.cta-staircase__step {
  transform: translateX(calc(var(--step, 0) * 20px));
  animation: cta-staircase__fade 600ms ease both;
  animation-delay: calc(var(--step, 0) * 100ms);
}

@keyframes cta-staircase__fade {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(calc(var(--step, 0) * 20px)); }
}

@media (max-width: 768px) {
  .cta-staircase__step {
    transform: translateX(0);
  }
}