/* 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; }
}

.services-tabs__serif,
[data-serif] {
    font-family: Georgia, "Times New Roman", Times, serif;
}

.services-tabs__btn {
    background-color: transparent;
}
.services-tabs__btn:hover {
    background-color: color-mix(in srgb, var(--bs-secondary-color) 6%, transparent);
}
.services-tabs__btn.is-active {
    border-color: var(--bs-primary) !important;
    background-color: color-mix(in srgb, var(--bs-primary) 8%, transparent) !important;
}

/* v26 - blueprint grid-line background + corner ticks (currentColor keeps it theme-safe) */
.steps-blueprint__grid {
    background-image:
        linear-gradient(currentColor 1px, transparent 1px),
        linear-gradient(90deg, currentColor 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 1;
}

[data-blueprint-panel]::before,
[data-blueprint-panel]::after {
    content: "";
    position: absolute;
    width: 0.75rem;
    height: 0.75rem;
}

[data-blueprint-panel]::before {
    top: -1px;
    left: -1px;
    border-top: 2px solid;
    border-left: 2px solid;
}

[data-blueprint-panel]::after {
    bottom: -1px;
    right: -1px;
    border-bottom: 2px solid;
    border-right: 2px solid;
}

/* FAQ v15 — CSS flip card mechanics for Bootstrap branch */
.faq-flip__card-outer {
    perspective: 1000px;
    min-height: 12rem;
}

.faq-flip__card-inner {
    transform-style: preserve-3d;
    transition: transform 0.7s ease;
}

.faq-flip__card-outer:hover .faq-flip__card-inner {
    transform: rotateY(180deg);
}

.faq-flip__face {
    backface-visibility: hidden;
}

.faq-flip__face--back {
    transform: rotateY(180deg);
}