/* intro v25 — Sagmeister ticket: corner patch, spiral binding, ticket perforation, square thumb */

/* Corner accent patch → triangle */
.intro-tkt__patch {
    width: 10rem;
    height: 10rem;
    clip-path: polygon(0 0, 100% 0, 0 100%);
    opacity: 0.9;
}
.intro-tkt__spiral { height: 1rem; }
.intro-tkt__body { min-width: 0; }
.intro-tkt__close { width: 2rem; height: 2rem; }

/* Torn notebook spiral binding holes (colour from Tailwind text-*, holes via mask) */
.intro-tkt__spiral {
    -webkit-mask: radial-gradient(circle 5px at center, black 98%, transparent 100%) 0 0 / 30px 100%;
    mask: radial-gradient(circle 5px at center, black 98%, transparent 100%) 0 0 / 30px 100%;
    background: currentColor;
    opacity: 0.5;
}

/* Square cropped thumbnail */
.intro-tkt__thumb {
    width: 6rem;
    height: 6rem;
    object-fit: cover;
}

/* Ticket stub perforation (currentColor from the card text) */
.intro-tkt__ticket { transition: box-shadow 240ms ease; }
.intro-tkt__ticket::after {
    content: "";
    position: absolute;
    top: 0.75rem;
    bottom: 0.75rem;
    left: 7.5rem;
    border-left: 2px dashed currentColor;
    opacity: 0.25;
    pointer-events: none;
}
@media (max-width: 575.98px) {
    .intro-tkt__ticket::after { display: none; }
}

/* content stack rows — animated icon tiles (TW w-20 h-20 has no BS util) */
.content-stack-rows__icon-tile {
    width: 5rem;
    height: 5rem;
}

.content-stack-rows__icon-pulse {
    animation: content-stack-rows-pulse 3.5s ease-in-out infinite;
}

.content-stack-rows__icon-tile {
    animation: content-stack-rows-float 6s ease-in-out infinite;
}

.content-stack-rows__icon-glyph {
    animation: content-stack-rows-tilt 5s ease-in-out infinite;
    transform-origin: center;
}

.content-stack-rows__icon-slot--0 .content-stack-rows__icon-pulse {
    animation-delay: 0s;
}

.content-stack-rows__icon-slot--0 .content-stack-rows__icon-tile {
    animation-delay: 0s;
}

.content-stack-rows__icon-slot--0 .content-stack-rows__icon-glyph {
    animation-delay: 0.2s;
}

.content-stack-rows__icon-slot--1 .content-stack-rows__icon-pulse {
    animation-delay: 0.8s;
}

.content-stack-rows__icon-slot--1 .content-stack-rows__icon-tile {
    animation-delay: 0.8s;
}

.content-stack-rows__icon-slot--1 .content-stack-rows__icon-glyph {
    animation-delay: 1s;
}

.content-stack-rows__icon-slot--2 .content-stack-rows__icon-pulse {
    animation-delay: 1.6s;
}

.content-stack-rows__icon-slot--2 .content-stack-rows__icon-tile {
    animation-delay: 1.6s;
}

.content-stack-rows__icon-slot--2 .content-stack-rows__icon-glyph {
    animation-delay: 1.8s;
}

@keyframes content-stack-rows-float {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-0.35rem);
    }
}

@keyframes content-stack-rows-pulse {
    0%,
    100% {
        transform: scale(1);
        opacity: 0.55;
    }

    50% {
        transform: scale(1.14);
        opacity: 0.2;
    }
}

@keyframes content-stack-rows-tilt {
    0%,
    100% {
        transform: rotate(0deg) scale(1);
    }

    50% {
        transform: rotate(-6deg) scale(1.06);
    }
}

@media (prefers-reduced-motion: reduce) {
    .content-stack-rows__icon-pulse,
    .content-stack-rows__icon-tile,
    .content-stack-rows__icon-glyph {
        animation: none;
    }
}