/* intro v17 — Death Note noir: circuit band, pulse rings, extrude text, duotone media, scroll slide-in */

/* Circuit-board traces — colour via Tailwind text-* on the band, currentColor in the pattern */
.intro-noir__circuit {
    background-image:
        repeating-linear-gradient(0deg, currentColor 0 1px, transparent 1px 32px),
        repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 32px);
    opacity: 0.18;
    -webkit-mask: linear-gradient(180deg, black, transparent);
    mask: linear-gradient(180deg, black, transparent);
}

/* Pulse rings from the band centre (size + placement so Bootstrap has no utility gap) */
.intro-noir__ring {
    width: 6rem;
    height: 6rem;
    top: 6rem;
    left: 50%;
    margin-left: -3rem;
    opacity: 0;
    animation: intro-noir-pulse 3.4s ease-out infinite;
}
.intro-noir__ring--2 { animation-delay: 1.7s; }

@keyframes intro-noir-pulse {
    0%   { transform: scale(0.4); opacity: 0.55; }
    100% { transform: scale(3.4); opacity: 0; }
}

/* Emboss seal circle */
.intro-noir__seal {
    width: 7rem;
    height: 7rem;
    font-size: 0.75rem;
    line-height: 1.1;
    padding: 0.75rem;
    transform: rotate(-8deg);
}

/* Extrude — stacked text-shadow depth using the element's own colour */
.intro-noir__extrude {
    text-shadow: 1px 1px 0 currentColor, 2px 2px 0 currentColor, 3px 3px 0 currentColor;
}

/* Duotone media: grayscale image + primary multiply tint (colour is a Tailwind class) */
.intro-noir__img {
    height: 10rem;
    object-fit: cover;
    filter: grayscale(1) contrast(1.05);
}

/* Sticky aside offset (Bootstrap position-sticky has no top-16 utility) */
@media (min-width: 992px) {
    .intro-noir__aside { top: 4rem; }
}
.intro-noir__tint {
    mix-blend-mode: multiply;
    opacity: 0.5;
}

/* Letter-spacing widen on hover */
.intro-noir__ttl { transition: letter-spacing 260ms ease; }
[data-card]:hover .intro-noir__ttl { letter-spacing: 0.08em; }

/* Slide-in entrance — pure CSS on the reliable [data-card] attribute; always ends visible */
@keyframes intro-noir-rise {
    from { opacity: 0; transform: translateY(2rem); }
    to   { opacity: 1; transform: translateY(0); }
}
.intro-noir [data-card] { animation: intro-noir-rise 560ms ease both; }

@media (prefers-reduced-motion: reduce) {
    .intro-noir__ring { animation: none; }
    .intro-noir [data-card] { animation: none; }
}

/* v12 - Accordion Steps: chevron rotate animation (no BS analog for transform/transition) */
.steps-notion-accordion__chevron {
    transition: transform 200ms ease;
}

.steps-notion-accordion__chevron.is-open {
    transform: rotate(180deg);
}

/* Fixed-size badge circle (matches tw w-9 h-9 = 2.25rem) — no BS width/height utility beyond w-25/50/75/100 */
.fold-list__badge {
    width: 2.25rem;
    height: 2.25rem;
}

/* Panel left indent aligning with title text after badge + gap (matches tw pl-[3.25rem]) */
.fold-list__panel-indent {
    padding-left: 3.25rem;
}

/* process rams — list panel, brand watermark, gentle float animation (no colors) */
.process-rams__index {
    width: 1.75rem;
    flex-shrink: 0;
}
.process-rams__content {
    min-width: 0;
}
.process-rams__brand {
    text-transform: lowercase;
    text-align: center;
    max-width: 100%;
    overflow: hidden;
    word-break: break-word;
    animation: process-rams-float 6s ease-in-out infinite;
}
.process-rams__cta {
    text-decoration: none;
    animation: process-rams-float 4.5s ease-in-out infinite;
    animation-delay: 0.75s;
}
@keyframes process-rams-float {
    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }
    50% {
        transform: translate3d(0, -0.35rem, 0);
    }
}
@media (prefers-reduced-motion: reduce) {
    .process-rams__brand,
    .process-rams__cta {
        animation: none;
    }
}