/* 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; }
}

.gist-cta-hover {
    transition: background-color 0.2s ease;
}

.gist-cta-hover:hover {
    background-color: rgba(var(--bs-primary-rgb), 0.1);
}

.gist-paper {
    border-radius: 2px;
}

.gist-sq-8  { width: 2rem;   height: 2rem;   flex-shrink: 0; }
.gist-sq-10 { width: 2.5rem; height: 2.5rem; flex-shrink: 0; }
.gist-sq-12 { width: 3rem;   height: 3rem;   flex-shrink: 0; }
.gist-sq-16 { width: 4rem;   height: 4rem;   flex-shrink: 0; }
.gist-sq-20 { width: 5rem;   height: 5rem;   flex-shrink: 0; }

.gist-corner {
    width: 1.75rem;
    height: 1.75rem;
    border-color: var(--bs-primary) !important;
}

.gist-corner--top-start {
    border-top: 2px solid var(--bs-primary);
    border-left: 2px solid var(--bs-primary);
}

.gist-corner--top-end {
    border-top: 2px solid var(--bs-primary);
    border-right: 2px solid var(--bs-primary);
}

.gist-corner--bottom-start {
    border-bottom: 2px solid var(--bs-primary);
    border-left: 2px solid var(--bs-primary);
}

.gist-corner--bottom-end {
    border-bottom: 2px solid var(--bs-primary);
    border-right: 2px solid var(--bs-primary);
}

.gist-paper-lines {
    background-image: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 11px,
        rgba(255, 255, 255, 0.4) 11px,
        rgba(255, 255, 255, 0.4) 12px
    );
}

.gist-meta-header {
    font-size: 0.6rem;
    letter-spacing: 0.25em;
}

.gist-field-label {
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    min-width: 7.5rem;
}

.gist-note-radius {
    border-radius: 0 6px 6px 0;
}

.gist-note-rule {
    border-bottom: 4px solid var(--bs-primary);
}

.gist-divider-rule {
    height: 0.5rem;
    background-color: rgba(var(--bs-primary-rgb), 0.06);
    border-top: 2px solid rgba(var(--bs-primary-rgb), 0.35);
    border-bottom: 2px solid rgba(var(--bs-primary-rgb), 0.35);
}

.gist-seal-text {
    font-size: 0.5rem;
    letter-spacing: 0.05em;
}

.gist-footer-meta {
    font-size: 0.55rem;
    letter-spacing: 0.1em;
}

.gist-dot {
    width: 0.25rem;
    height: 0.25rem;
}

.diagonal-zigzag-split__portrait {
    width: 8rem;
    height: 8rem;
}

.diagonal-zigzag-split__portrait--tilt-left {
    transform: rotate(-5deg);
}

.diagonal-zigzag-split__portrait--tilt-right {
    transform: rotate(5deg);
}

.diagonal-zigzag-split__portrait:hover {
    transform: rotate(0);
}

.diagonal-zigzag-split__beacon {
    width: 2rem;
    height: 2rem;
    bottom: -0.25rem;
    right: -0.25rem;
}

.diagonal-zigzag-split__beacon-dot {
    width: 0.75rem;
    height: 0.75rem;
}

.diagonal-zigzag-split__frame {
    width: 4rem;
    height: 4rem;
}

.diagonal-zigzag-split__frame--tl {
    top: 0;
    left: 0;
}

.diagonal-zigzag-split__frame--br {
    bottom: 0;
    right: 0;
}

.diagonal-zigzag-split__frame--rotate-45 {
    transform: rotate(45deg);
}

.diagonal-zigzag-split__frame--rotate-minus-45 {
    transform: rotate(-45deg);
}

.diagonal-zigzag-split__wash {
    width: 8rem;
}

.diagonal-zigzag-split__corner {
    width: 5rem;
    height: 5rem;
}

.diagonal-zigzag-split__min-shrink {
    min-width: 0;
}

@media (min-width: 768px) {
    .diagonal-zigzag-split__band--reverse {
        flex-direction: row-reverse;
    }

    .diagonal-zigzag-split__portrait {
        width: 10rem;
        height: 10rem;
    }
}

/* values-storybook — zigzag alternation, organic blob shapes, hover motion */
/* Layout/transform/animation only — no colors here, theme colors applied via tw: */

@media (min-width: 768px) {
    .values-storybook__item:nth-child(even) {
        flex-direction: row-reverse;
    }
}

.values-storybook__blob-wrap {
    width: 8rem;
    height: 8rem;
    transition: transform 250ms ease;
}

@media (min-width: 640px) {
    .values-storybook__blob-wrap {
        width: 10rem;
        height: 10rem;
    }
}

.values-storybook__item:hover .values-storybook__blob-wrap {
    transform: scale(1.06);
}

.values-storybook__blob {
    position: absolute;
    inset: 0;
    border-radius: 42% 58% 63% 37% / 41% 44% 56% 59%;
}

.values-storybook__item:nth-child(even) .values-storybook__blob {
    border-radius: 58% 42% 37% 63% / 59% 56% 44% 41%;
}

.values-storybook__list {
    transition: transform 200ms ease;
}

/* quote v16 — grid bookshelf (quote-grid-shelf__* — isolated from quote v12 quote-shelf__*) */

.quote-grid-shelf__art--mesh {
    background-image:
        radial-gradient(circle at 20% 30%, currentColor 0, transparent 42%),
        radial-gradient(circle at 78% 18%, currentColor 0, transparent 38%),
        radial-gradient(circle at 62% 82%, currentColor 0, transparent 45%),
        radial-gradient(circle at 12% 72%, currentColor 0, transparent 36%);
    opacity: 0.18;
}

.quote-grid-shelf__art--hatch {
    background-image: repeating-linear-gradient(
        -38deg,
        transparent,
        transparent 6px,
        currentColor 6px,
        currentColor 7px
    );
    opacity: 0.12;
    mix-blend-mode: overlay;
}

.quote-grid-shelf__art--grain {
    background-image:
        repeating-conic-gradient(from 0deg at 50% 50%, currentColor 0deg 2deg, transparent 2deg 7deg),
        repeating-linear-gradient(90deg, transparent 0 3px, currentColor 3px 4px);
    opacity: 0.08;
}

.quote-grid-shelf__ripple-pool {
    width: 28rem;
    height: 28rem;
    left: var(--ripple-x, 50%);
    top: var(--ripple-y, 50%);
    transform: translate(-50%, -50%) scale(0.35);
    opacity: 0;
    transition: transform 450ms ease, opacity 600ms ease;
    will-change: transform, opacity;
}

.quote-grid-shelf__ripple-pool.is-pulsing {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    .quote-grid-shelf__ripple-pool {
        display: none;
    }
}

.quote-grid-shelf__bracket {
    width: 0.5rem;
}

.quote-grid-shelf__bracket--left {
    left: 1rem;
}

.quote-grid-shelf__bracket--right {
    right: 1rem;
}

.quote-grid-shelf__scroll {
    max-height: 36rem;
    scroll-behavior: smooth;
    scrollbar-width: thin;
}

.quote-grid-shelf__parent-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(4, minmax(8.25rem, auto));
    gap: 1rem;
}

@media (min-width: 768px) {
    .quote-grid-shelf__parent-grid {
        gap: 1.5rem;
    }
}

.quote-grid-shelf__child-grid {
    display: grid;
    grid-row: span 1;
    min-height: 100%;
    grid-template-rows: subgrid;
}

@supports not (grid-template-rows: subgrid) {
    .quote-grid-shelf__child-grid {
        grid-template-rows: auto 1fr auto;
        height: 100%;
    }
}

.quote-grid-shelf__ledge:nth-child(1) {
    top: 25%;
}

.quote-grid-shelf__ledge:nth-child(2) {
    top: 50%;
}

.quote-grid-shelf__ledge:nth-child(3) {
    top: 75%;
}

.quote-grid-shelf__ledge {
    height: 0.25rem;
}

.quote-grid-shelf__book--linocut {
    clip-path: polygon(
        0% 1.5%, 3% 0%, 8% 1%, 15% 0%, 24% 1.2%, 35% 0%, 48% 0.8%, 62% 0%, 75% 1%, 88% 0%, 96% 1.5%, 100% 0.5%,
        100% 98%, 97% 100%, 90% 98.5%, 80% 100%, 68% 98%, 55% 100%, 42% 98.5%, 28% 100%, 14% 98%, 5% 100%, 0% 97%
    );
}

.quote-grid-shelf__opening {
    font-variant: common-ligatures;
    letter-spacing: -0.04em;
}

.quote-grid-shelf__reveal {
    opacity: 0;
    transform: translateY(1.25rem);
    transition: opacity 550ms ease, transform 550ms ease;
    transition-delay: calc(var(--shelf-stagger, 0) * 90ms);
}

.quote-grid-shelf__reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .quote-grid-shelf__reveal {
        opacity: 1;
        transform: none;
        transition: none;
        transition-delay: 0ms;
    }
}
/* hover + focus affordances (layout/outline via theme token) */
@media (hover: hover) {
    .quote-grid-shelf-root [role="listitem"]:hover,
    .quote-grid-shelf-root article:hover,
    .quote-grid-shelf-root [class*="quote-grid-shelf__card"]:hover,
    .quote-grid-shelf-root .quote-grid-shelf__book:hover,
    .quote-grid-shelf-root .quote-grid-shelf__step:hover,
    .quote-grid-shelf-root .quote-grid-shelf__index-card:hover,
    .quote-grid-shelf-root .quote-grid-shelf__pill:hover,
    .quote-grid-shelf-root .quote-grid-shelf__item:hover {
        transform: translateY(-0.125rem);
    }
}

.quote-grid-shelf-root [role="listitem"],
.quote-grid-shelf-root article,
.quote-grid-shelf-root [class*="quote-grid-shelf__card"],
.quote-grid-shelf-root .quote-grid-shelf__book,
.quote-grid-shelf-root .quote-grid-shelf__step,
.quote-grid-shelf-root .quote-grid-shelf__index-card,
.quote-grid-shelf-root .quote-grid-shelf__pill {
    transition: transform 200ms ease;
}

.quote-grid-shelf-root a:focus-visible,
.quote-grid-shelf-root button:focus-visible,
.quote-grid-shelf-root [tabindex="0"]:focus-visible,
.quote-grid-shelf-root input:focus-visible,
.quote-grid-shelf-root summary:focus-visible,
.quote-grid-shelf-root [role="slider"]:focus-visible {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
}

@media (hover: hover) {
    .quote-grid-shelf-root button:hover,
    .quote-grid-shelf-root a:hover,
    .quote-grid-shelf-root summary:hover {
        opacity: 0.92;
    }
}