/* 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; }
}

.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;
}

.modern-vertical-timeline__line {
    width: 4px;
    left: 50%;
    transform: translateX(-50%);
}

.modern-vertical-timeline__events > * + * {
    margin-top: 2rem;
}

.modern-vertical-timeline__dot {
    width: 2rem;
    height: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.modern-vertical-timeline__dot-mobile {
    width: 2rem;
    height: 2rem;
}

.modern-vertical-timeline__summary-icon {
    width: 2rem;
    height: 2rem;
}

@media (min-width: 1024px) {
    .modern-vertical-timeline__col--reverse {
        margin-right: 0;
        margin-left: auto;
        padding-right: 0;
        padding-left: 1.25rem;
    }
}

@media (min-width: 992px) {
    .modern-vertical-timeline__col--reverse {
        margin-inline-start: auto;
        margin-inline-end: 0;
        padding-inline-end: 0;
        padding-inline-start: 1.5rem;
    }
}

/* Bootstrap: сетка как Tailwind grid md:2 lg:4 + gap-lg */
.values-number-card__bs-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
}

@media (min-width: 768px) {
    .values-number-card__bs-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .values-number-card__bs-row {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.values-number-card__subtitle-max {
    max-width: 42rem;
}

.values-number-card__thumb {
    width: 4rem;
    height: 4rem;
}

.values-number-card__badge {
    top: -0.5rem;
    right: -0.5rem;
    width: 1.5rem;
    height: 1.5rem;
}

.float-jitter-grid__portrait {
    width: 7rem;
    height: 7rem;
}

@media (min-width: 768px) {
    .float-jitter-grid__portrait {
        width: 8rem;
        height: 8rem;
    }
}

.float-jitter-grid__beacon {
    width: 1.5rem;
    height: 1.5rem;
}

.float-jitter-grid__tile:nth-child(4n+2) {
    transform: translateY(1rem) translateX(0.5rem);
}

.float-jitter-grid__tile:nth-child(4n+3) {
    transform: translateY(2rem) translateX(-0.5rem);
}

.float-jitter-grid__tile:nth-child(4n+4) {
    transform: translateY(1rem) translateX(1rem);
}