/* 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; }
}

/* FAQ v8 — flip card states (no Tailwind in script) */
.primer-clarify-query-chapter.primer-clarify-prompt-latent {
    transform: translateY(-100%);
    opacity: 0;
}

.primer-clarify-query-chapter.primer-clarify-prompt-shown {
    transform: translateY(0);
    opacity: 1;
}

.primer-clarify-reply-chapter.primer-clarify-resolve-latent {
    transform: translateY(100%);
    opacity: 0;
}

.primer-clarify-reply-chapter.primer-clarify-resolve-shown {
    transform: translateY(0);
    opacity: 1;
}

.primer-clarify-query-chapter,
.primer-clarify-reply-chapter {
    transition: transform 0.5s ease-in-out, opacity 0.5s ease-in-out;
}

/* Card min-height for flip layout */
.primer-clarify__card-wrap { min-height: 20rem; }

/* Corner blob size */
.primer-clarify__corner-blob { width: 5rem; height: 5rem; }

/* Animation delays */
.primer-clarify__flare--delay-1 { animation-delay: 0.2s; }
.primer-clarify__flare--delay-2 { animation-delay: 0.4s; }
.primer-clarify__flare--delay-3 { animation-delay: 0.8s; }
.primer-clarify__flare--delay-4 { animation-delay: 1s; }
.primer-clarify__flare--delay-5 { animation-delay: 1.2s; }
.primer-clarify__flare--delay-6 { animation-delay: 1.5s; }
.primer-clarify__flare--delay-7 { animation-delay: 2s; }

/* Cluster positions */
.primer-clarify__cluster-a { top: 3rem; left: 2rem; transform: rotate(45deg); }
.primer-clarify__cluster-b { top: 33%; right: 3rem; transform: rotate(-12deg); }
.primer-clarify__cluster-c { bottom: 4rem; left: 25%; transform: rotate(12deg); }

/* Standalone dot positions */
.primer-clarify__dot-a { top: 5rem; right: 5rem; width: 0.5rem; height: 0.5rem; }
.primer-clarify__dot-b { bottom: 6rem; right: 33%; width: 0.75rem; height: 0.75rem; }

/* Inner cluster child positions */
.primer-clarify__inner-a { top: 1rem; left: 1rem; width: 0.75rem; height: 0.75rem; }
.primer-clarify__inner-b { top: 2rem; left: 2rem; width: 0.5rem; height: 0.5rem; }
.primer-clarify__inner-c { top: 1.5rem; left: 1.5rem; width: 0.5rem; height: 0.5rem; }
.primer-clarify__inner-d { top: 3rem; left: 3rem; width: 1rem; height: 1rem; }
.primer-clarify__inner-e { top: 0.75rem; left: 0.75rem; width: 0.75rem; height: 0.75rem; }

/* Decorative lines */
.primer-clarify__line-a { top: 0.25rem; left: 0.25rem; width: 3rem; height: 0.125rem; }
.primer-clarify__line-b { top: 1.25rem; left: 1.25rem; width: 2rem; height: 0.125rem; }
.primer-clarify__line-c { top: 0.75rem; left: 0.75rem; width: 4rem; height: 0.125rem; }
.primer-clarify__line-d { top: 0.25rem; left: 0.25rem; width: 2.5rem; height: 0.125rem; }

@keyframes primer-clarify-flare-ping-cycle {
    75%, 100% { transform: scale(2); opacity: 0; }
}
.primer-clarify__flare--ping {
    animation: primer-clarify-flare-ping-cycle 1s cubic-bezier(0,0,.2,1) infinite;
}

@keyframes primer-clarify-flare-throb-cycle {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}
.primer-clarify__flare--throb {
    animation: primer-clarify-flare-throb-cycle 2s cubic-bezier(.4,0,.6,1) infinite;
}

@keyframes primer-clarify-flare-rebound-cycle {
    0%, 100% { transform: translateY(0); animation-timing-function: cubic-bezier(.8,0,1,1); }
    50%       { transform: translateY(-25%); animation-timing-function: cubic-bezier(0,0,.2,1); }
}
.primer-clarify__flare--rebound {
    animation: primer-clarify-flare-rebound-cycle 1s infinite;
}

.primer-clarify__flare--lift:hover { transform: scale(1.5); transition: transform .2s ease; }

.primer-clarify__control--lift:hover { transform: scale(1.05); transition: transform .2s ease; }

.tips-cards__card {
    max-width: 24rem;
}