/* 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; }
}

/* process rail — awards list rows, serif marquee */
.process-rail__stage {
    min-height: 24rem;
}

.process-rail__top {
    min-height: 18rem;
}

.process-rail__row {
    transition: background-color 0.25s ease;
}

.process-rail__row:hover {
    background-color: color-mix(in srgb, currentColor 8%, transparent);
}

.process-rail__marquee-track {
    display: flex;
    width: max-content;
    animation: process-rail-marquee 28s linear infinite;
}

.process-rail__marquee-text {
    font-family: Georgia, "Times New Roman", Times, serif;
    font-size: clamp(1.5rem, 6vw, 4rem);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    white-space: nowrap;
    padding-inline: 1rem;
    flex-shrink: 0;
}

.process-rail__animation {
    width: 8rem;
    height: 8rem;
    animation: process-rail-pulse 2s ease-in-out infinite;
}

@keyframes process-rail-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

@keyframes process-rail-marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .process-rail__marquee-track {
        animation: none;
    }
}

@media (min-width: 992px) {
    .process-rail__stage {
        min-height: 28rem;
    }

    .process-rail__top {
        min-height: 22rem;
    }
}

.whyus-stacked-cards__grid {
    max-width: 56rem;
}

.whyus-stacked-cards__accent {
    top: -5.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 5rem;
}

.whyus-stacked-cards__thumb {
    width: 5rem;
    height: 5rem;
}

/* Bootstrap: explicit grid + gap (row gutters often collapse) */
.tips-grid__bs-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
}

.tips-grid__min-shrink {
    min-width: 0;
}

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

.tips-grid__subtitle {
    max-width: 42rem;
}

.tips-grid__thumb {
    width: 3rem;
    height: 3rem;
}