/* 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; }
}

.intro-cta-hover {
    transition: transform 0.3s ease;
}

.intro-cta-hover:hover {
    transform: scale(1.05);
}

.intro-star-offset {
    top: -0.5rem;
    right: -0.5rem;
}

.intro-bulb-offset {
    bottom: -0.5rem;
    left: -0.5rem;
}

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

.creed-split__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

@media (min-width: 1024px) {
    .creed-split__grid {
        grid-template-columns: minmax(0, 320px) 1fr;
        gap: 5rem;
    }

    .creed-split__aside {
        position: sticky;
        top: 6rem;
        align-self: start;
    }
}

@media (min-width: 640px) {
    .creed-split__label {
        width: 2.5rem;
    }
}

.split-cyber-timeline__scanlines {
    background-image: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        currentColor 2px,
        currentColor 3px
    );
}

@keyframes split-cyber-timeline__slide-left {
    from { opacity: 0; transform: translateX(-32px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes split-cyber-timeline__slide-right {
    from { opacity: 0; transform: translateX(32px); }
    to { opacity: 1; transform: translateX(0); }
}

.split-cyber-timeline__reveal-left {
    animation: split-cyber-timeline__slide-left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.split-cyber-timeline__reveal-right {
    animation: split-cyber-timeline__slide-right 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.split-cyber-timeline__section {
    min-height: 480px;
}

.split-cyber-timeline__overlay-z {
    z-index: 10;
}

.split-cyber-timeline__inner-height {
    min-height: 480px;
}

.split-cyber-timeline__media-clip {
    min-height: 280px;
    position: relative;
}

.split-cyber-timeline__media-clip > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.split-cyber-timeline__media-clip--even {
    clip-path: polygon(0 0, 92% 0, 100% 100%, 0 100%);
}

.split-cyber-timeline__media-clip--odd {
    clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%);
}

.split-cyber-timeline__accent-bar {
    width: 4px;
}

.split-cyber-timeline__accent-bar--right {
    right: 0;
}

.split-cyber-timeline__accent-bar--left {
    left: 0;
}

.split-cyber-timeline__content-z {
    z-index: 20;
}

.split-cyber-timeline__line-sm {
    width: 1rem;
    height: 2px;
}

.split-cyber-timeline__accent-sm {
    width: 2rem;
    height: 0.25rem;
}

@media (min-width: 768px) {
    .split-cyber-timeline__section--reverse .split-cyber-timeline__inner {
        flex-direction: row-reverse;
    }

    .split-cyber-timeline__content-z--odd {
        padding-left: 4rem;
        padding-right: 3rem;
    }
}

.bench-simple-grid__portrait {
    width: 8rem;
    height: 8rem;
}

.bench-simple-grid__min-shrink {
  min-width: 0;
}

/* quote — featured academic quote + supporting cards */

/* serif lead + drop-cap. BS has no font-serif utility; font-family here is allowed (it is not a color) */
.quote-essay__lead {
    font-family: ui-serif, Georgia, "Times New Roman", serif;
}

.quote-essay__lead::first-letter {
    float: left;
    font-size: 3.25rem;
    line-height: 0.8;
    padding-right: 0.5rem;
    font-weight: 700;
}

/* author avatar: fixed size + cover (neither has a BS utility) */
.quote-essay__avatar {
    width: 3.5rem;
    height: 3.5rem;
    object-fit: cover;
}

.quote-essay__glow {
    width: 16rem;
    height: 16rem;
    filter: blur(64px);
}

/* stepping-stone offset rhythm on supporting cards — layout only */
@media (min-width: 1024px) {
    .quote-essay__step:nth-child(odd) {
        transform: translateY(0.75rem);
    }
    .quote-essay__step:nth-child(even) {
        transform: translateY(-0.25rem);
    }
}
/* hover + focus affordances (layout/outline via theme token) */
@media (hover: hover) {
    .quote-essay-root [role="listitem"]:hover,
    .quote-essay-root article:hover,
    .quote-essay-root [class*="quote-essay__card"]:hover,
    .quote-essay-root .quote-essay__book:hover,
    .quote-essay-root .quote-essay__step:hover,
    .quote-essay-root .quote-essay__index-card:hover,
    .quote-essay-root .quote-essay__pill:hover,
    .quote-essay-root .quote-essay__item:hover {
        transform: translateY(-0.125rem);
    }
}

.quote-essay-root [role="listitem"],
.quote-essay-root article,
.quote-essay-root [class*="quote-essay__card"],
.quote-essay-root .quote-essay__book,
.quote-essay-root .quote-essay__step,
.quote-essay-root .quote-essay__index-card,
.quote-essay-root .quote-essay__pill {
    transition: transform 200ms ease;
}

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

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