/* intro v22 — Lavazza brutalist: blueprint grid, aurora sweep, outlined heading, progressive stagger */

/* Blueprint engineering-paper grid (colour from Tailwind text-*, lines via currentColor) */
.intro-blue__grid {
    background-image:
        repeating-linear-gradient(0deg, currentColor 0 1px, transparent 1px 28px),
        repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 28px);
    opacity: 0.16;
}

/* Aurora wave sweep horizontal */
.intro-blue__aurora {
    background-size: 200% 100%;
    opacity: 0.3;
    animation: intro-blue-aurora 7s ease-in-out infinite;
}
@keyframes intro-blue-aurora {
    0%, 100% { background-position: 0% 0%; }
    50%      { background-position: 100% 0%; }
}

/* Text-stroke outlined heading (hollow fill, stroke = the element's Tailwind colour) */
.intro-blue__title {
    -webkit-text-fill-color: transparent;
    -webkit-text-stroke: 2px currentColor;
    text-stroke: 2px currentColor;
    letter-spacing: -0.02em;
}

/* Progressive stagger reveal — pure CSS on the reliable [data-lane-item] attribute; always ends visible */
@keyframes intro-blue-rise {
    from { opacity: 0; transform: translateY(1.5rem); }
    to   { opacity: 1; transform: translateY(0); }
}
.intro-blue [data-lane-item] { animation: intro-blue-rise 500ms ease both; }
.intro-blue [data-lane-item]:nth-child(2) { animation-delay: 120ms; }
.intro-blue [data-lane-item]:nth-child(3) { animation-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
    .intro-blue__aurora { animation: none; }
    .intro-blue [data-lane-item] { animation: none; }
}

.content-prose-column {
    max-width: 28rem;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.content-heading-gap {
    margin-bottom: 2rem;
}

.content-section-pad {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

/* Bootstrap: grid + gap (row gutters often collapse) */
.tips-detailed__bs-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
}

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

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

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

.tips-detailed__cta-thumb {
    width: 2rem;
    height: 2rem;
}

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

/* glossary folders — summary marker hide, folder hover */
.glossary-folders__sum::-webkit-details-marker {
    display: none;
}

.glossary-folders__sum {
    list-style: none;
}

.glossary-folders__folder {
    transition: transform 0.2s ease;
}

.glossary-folders__folder:hover {
    transform: translateY(-2px);
}