/* 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; }
}

/* v25 - chat bubble speech tail (border-triangle trick has no TW/BS utility) */
[data-chat-bubble] {
    position: relative;
}

[data-bubble-side="left"] [data-chat-bubble]::before {
    content: "";
    position: absolute;
    top: 1.25rem;
    left: -0.5rem;
    width: 0;
    height: 0;
    border-top: 0.5rem solid transparent;
    border-bottom: 0.5rem solid transparent;
    border-right: 0.5rem solid currentColor;
    color: inherit;
    opacity: 0.15;
}

[data-bubble-side="right"] [data-chat-bubble]::before {
    content: "";
    position: absolute;
    top: 1.25rem;
    right: -0.5rem;
    width: 0;
    height: 0;
    border-top: 0.5rem solid transparent;
    border-bottom: 0.5rem solid transparent;
    border-left: 0.5rem solid currentColor;
    color: inherit;
    opacity: 0.15;
}

.orbit-column-badge {
    width: 2.5rem;
    height: 2.5rem;
}

.orbit-column-panel {
    height: 700px;
}

.orbit-column-cloud-top {
    width: 24rem;
    height: 24rem;
}

.orbit-column-cloud-bottom {
    width: 20rem;
    height: 20rem;
}

.orbit-column-ring-main {
    width: 24rem;
    height: 24rem;
    animation-duration: 20s;
}

.orbit-column-ring-side {
    width: 20rem;
    height: 20rem;
    animation-duration: 30s;
    animation-direction: reverse;
}

.orbit-column-ring-tail {
    width: 22rem;
    height: 22rem;
    animation-duration: 25s;
}

.orbit-column-ring-main,
.orbit-column-ring-side,
.orbit-column-ring-tail {
    animation-name: orbit-column__spin;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

@keyframes orbit-column__spin {
    to { transform: rotate(360deg); }
}

.features-masonry-grid__list {
    column-count: 1;
    column-gap: 1.5rem;
}

@media (min-width: 768px) {
    .features-masonry-grid__list {
        column-count: 2;
    }
}

@media (min-width: 1024px) {
    .features-masonry-grid__list {
        column-count: 3;
    }
}

.features-masonry-grid__item {
    break-inside: avoid;
    page-break-inside: avoid;
    margin-bottom: 1.5rem;
}

.features-masonry-grid__decor--pulse-tl {
    top: 0;
    left: 0;
    border-bottom-right-radius: 9999px;
    animation: features-masonry-grid-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-masonry-grid__decor--pulse-br {
    bottom: 0;
    right: 0;
    border-top-left-radius: 9999px;
    animation: features-masonry-grid-pulse-kf 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.features-masonry-grid__decor--spin {
    top: 33.333333%;
    right: 25%;
    animation: features-masonry-grid-spin-kf 1s linear infinite;
}

.features-masonry-grid__decor--bounce {
    bottom: 33.333333%;
    left: 25%;
    transform: rotate(12deg);
    animation: features-masonry-grid-bounce-kf 1s infinite;
}

.features-masonry-grid__card {
    transition: box-shadow 0.3s ease;
}

.features-masonry-grid__card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.features-masonry-grid__card:hover .features-masonry-grid__icon--lift {
    transform: scale(1.05);
}

.features-masonry-grid__card:hover .features-masonry-grid__title {
    color: var(--bs-primary, #0d6efd);
}

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

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

@keyframes features-masonry-grid-bounce-kf {
    0%, 100% { transform: translateY(-25%) rotate(12deg); animation-timing-function: cubic-bezier(0.8,0,1,1); }
    50% { transform: none; animation-timing-function: cubic-bezier(0,0,0.2,1); }
}

/* -- 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);
}

.action-boost__section {
    padding-top: 6rem;
    padding-bottom: 6rem;
    min-height: 500px;
}

.action-boost__prompt--glow:hover { transform: scale(1.05); transition: transform .2s ease; }