/* 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; }
}

@keyframes fullscreen-scroll-timeline__slide-in {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

.fullscreen-scroll-timeline__content.is-visible {
    animation: fullscreen-scroll-timeline__slide-in 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.fullscreen-scroll-timeline__section {
    min-height: 520px;
}

.fullscreen-scroll-timeline__inner {
    min-height: 520px;
    z-index: 10;
}

.fullscreen-scroll-timeline__content {
    max-width: 36rem;
    opacity: 0;
    transform: translateX(-40px);
}

.fullscreen-scroll-timeline__accent-line {
    width: 2rem;
    height: 1px;
}

.fullscreen-scroll-timeline__text {
    max-width: 32rem;
}

.fullscreen-scroll-timeline__decor-year {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.fullscreen-scroll-timeline__year-text {
    font-size: 120px;
    writing-mode: vertical-rl;
}
.fullscreen-scroll-timeline__section {
    min-height: 520px;
}

.fullscreen-scroll-timeline__inner-size {
    min-height: 520px;
    z-index: 10;
}

.fullscreen-scroll-timeline__content {
    max-width: 36rem;
    opacity: 0;
    transform: translateX(-40px);
}

.fullscreen-scroll-timeline__accent-line {
    width: 2rem;
    height: 1px;
}

.fullscreen-scroll-timeline__text-width {
    max-width: 32rem;
}

.fullscreen-scroll-timeline__year-decor {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.fullscreen-scroll-timeline__feat-year {
    font-size: 120px;
    writing-mode: vertical-rl;
}


@media (min-width: 768px) {
    .steps-dual-panel__sticky-col {
        position: sticky;
        top: 2rem;
    }
}

.steps-dual-panel__badge-circle {
    width: 3rem;
    height: 3rem;
}

.steps-dual-panel__decor-dot {
    width: 0.5rem;
    height: 0.5rem;
}