/* intro v28 — Arc diagonal-split: clip split, floating rings, ransom-note words, grayscale hover, click burst */

/* Diagonal split zone */
.intro-arc2__split {
    clip-path: polygon(0 0, 100% 0, 100% 62%, 0 100%);
    opacity: 0.6;
}

/* Floating rings / donuts (fixed size — no BS w-N/h-N utility) */
.intro-arc2__ring { width: 10rem; height: 10rem; animation: intro-arc2-float 7s ease-in-out infinite; }
.intro-arc2__ring--2 { width: 6rem; height: 6rem; animation-duration: 9s; animation-delay: 1s; }
@keyframes intro-arc2-float {
    50% { transform: translateY(-1.2rem) rotate(20deg); }
}

/* Serif accent (paired with sans body) */
.intro-arc2__serif { font-family: ui-serif, Georgia, "Times New Roman", serif; }

/* Hero image grayscale → colour reveal on hover */
.intro-arc2__figure { aspect-ratio: 4 / 3; }
.intro-arc2__img {
    object-fit: cover;
    filter: grayscale(1);
    transition: filter 420ms ease;
}
.intro-arc2__figure:hover .intro-arc2__img { filter: grayscale(0); }

/* Ransom-note mixed letters: alternate rotation, weight, family (no colour) */
.intro-arc2__word {
    display: inline-block;
    margin-right: 0.25em;
}
.intro-arc2__word:nth-child(3n+1) { transform: rotate(-4deg); font-weight: 900; }
.intro-arc2__word:nth-child(3n+2) { transform: rotate(3deg);  font-family: ui-serif, Georgia, serif; font-style: italic; }
.intro-arc2__word:nth-child(3n+3) { transform: rotate(-1deg); font-weight: 700; text-transform: uppercase; }

/* Click burst spark (inherits the button's primary colour via currentColor) */
.intro-arc2__react { position: relative; overflow: visible; }
.intro-arc2__spark {
    position: absolute;
    left: 50%;
    top: 50%;
    pointer-events: none;
    animation: intro-arc2-burst 640ms ease-out forwards;
}
@keyframes intro-arc2-burst {
    to { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(0.4) rotate(160deg); }
}

@media (prefers-reduced-motion: reduce) {
    .intro-arc2__ring { animation: none; }
}

.features-accordion__item summary::-webkit-details-marker {
    display: none;
}

.features-accordion__item summary::marker {
    display: none;
}

.features-accordion__chevron {
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.features-accordion__item[open] .features-accordion__chevron {
    transform: rotate(180deg);
}

.features-accordion__item[open] .features-accordion__icon--scale {
    transform: scale(1.05);
}

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

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

@keyframes features-accordion-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); }
}

.features-accordion__decor--pulse {
    filter: blur(32px);
    animation: features-accordion-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-accordion__decor--spin {
    animation: features-accordion-spin-kf 1s linear infinite;
}

.features-accordion__decor--bounce {
    transform: rotate(45deg);
    animation: features-accordion-bounce-kf 1s infinite;
}

.features-accordion__decor--line {
    transform: rotate(12deg);
}

/* -- 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-accordion__decor--bs-blob {
    width: 14rem;
    height: 14rem;
    background-color: var(--bs-primary-bg-subtle);
    opacity: 0.35;
    filter: blur(48px);
}
.features-accordion__decor--bs-shape {
    opacity: 0.15;
}
.features-accordion__decor--bs-line {
    border-left: 1px solid var(--bs-primary-border-subtle);
    opacity: 0.2;
}
/* advantages timeline path — connector line + icon node sizing + scroll reveal + decor orb (layout/motion only, no colors) */

.advantages-path__orb {
    width: 18rem;
    height: 18rem;
    top: -5rem;
    right: -6rem;
}

.advantages-path__node {
    width: 2.5rem;
    height: 2.5rem;
}

/* vertical connector aligned to the node centre (node is 2.5rem → centre at 1.25rem) */
.advantages-path__line {
    left: 1.25rem;
    width: 2px;
}

/* scroll reveal — only armed once JS runs, so the list stays visible without JS */
.advantages-path.is-armed .advantages-path__item {
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.advantages-path.is-armed .advantages-path__item.is-visible {
    opacity: 1;
    transform: none;
}

/* Карточка цитати — hover scale для обох фреймворків */
.quote-item-hover {
  transition: transform 0.3s ease;
}

.quote-item-hover:hover {
  transform: scale(1.05);
}

.cta-stagger-services__grid-lines {
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.cta-stagger-services__grid-line {
  flex: 1 1 0;
  height: 100%;
  border-inline-end-width: 1px;
  border-inline-end-style: solid;
}

.cta-stagger-services__grid-line:last-child {
  border-inline-end-width: 0;
}

.cta-stagger-services__logo {
  display: grid;
  grid-template-columns: repeat(3, 1.25rem);
  gap: 0.25rem;
}

.cta-stagger-services__logo-cell {
  width: 1.25rem;
  height: 1.25rem;
}

.cta-stagger-services__list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cta-stagger-services__item--shift {
  margin-inline-start: 12%;
}

.cta-stagger-services__item-num {
  font-size: 0.875rem;
  vertical-align: super;
  line-height: 0;
  margin-inline-end: 0.35rem;
}

@media (max-width: 767px) {
  .cta-stagger-services__item--shift {
    margin-inline-start: 0;
  }
}

@media (min-width: 768px) {
  .cta-stagger-services__item--shift {
    margin-inline-start: 14%;
  }
}

/* CTA button — TW + BS */
.cta-stagger-services__cta {
  transition: filter 0.2s ease, transform 0.15s ease;
}

.cta-stagger-services__cta:hover,
.cta-stagger-services__cta:focus-visible {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.cta-stagger-services__cta:hover .cta-stagger-services__cta-icon,
.cta-stagger-services__cta:focus-visible .cta-stagger-services__cta-icon {
  transform: translate(2px, -2px);
}

.cta-stagger-services__cta-icon {
  transition: transform 0.2s ease;
}

/* Service strip cards — BS hover parity */
.cta-stagger-services__item-hov {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.cta-stagger-services__item-hov:hover,
.cta-stagger-services__item-hov:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--bs-box-shadow-lg);
  border-color: var(--bs-primary) !important;
}

.cta-stagger-services__item-hov:hover .cta-stagger-services__item-num,
.cta-stagger-services__item-hov:focus-within .cta-stagger-services__item-num {
  color: var(--bs-primary) !important;
}

@media (prefers-reduced-motion: reduce) {
  .cta-stagger-services__cta:hover,
  .cta-stagger-services__cta:focus-visible,
  .cta-stagger-services__item-hov:hover,
  .cta-stagger-services__item-hov:focus-within {
    transform: none;
  }

  .cta-stagger-services__cta:hover .cta-stagger-services__cta-icon,
  .cta-stagger-services__cta:focus-visible .cta-stagger-services__cta-icon {
    transform: none;
  }
}