/* intro v19 — photo-free index list: soft blurred blobs, fixed icon tiles, scroll reveal */

/* Soft background blobs (fixed size + blur have no BS utility; colour stays a Tailwind/BS class) */
.intro-index__blob {
    width: 24rem;
    height: 24rem;
    filter: blur(64px);
    opacity: 0.5;
}

/* Icon tile fixed size (BS has no w-N/h-N utility) */
.intro-index__icon-tile {
    width: 3rem;
    height: 3rem;
}

/* Scroll reveal — cards hide only once JS arms the section (no-JS content stays visible) */
.intro-index.is-armed .intro-index__card {
    opacity: 0;
    transform: translateY(1.5rem);
    transition: opacity 560ms ease, transform 560ms ease;
}
.intro-index.is-armed .intro-index__card.is-in {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .intro-index.is-armed .intro-index__card {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Bootstrap flex-md-row: cap thumb width (parity with Tailwind md:w-80) */
.content-v41-thumb-wrap {
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .content-v41-thumb-wrap {
        width: 20rem;
        max-width: 20rem;
    }
}

.spread-chapter__visual--rise:hover { transform: scale(1.05); transition: transform .2s ease; }

.spread-chapter__jump--rise:hover { transform: scale(1.05); transition: transform .2s ease; }

.content-col-grow {
    flex: 1 1 0%;
    min-width: 0;
}

.content-grid-gap {
    gap: 2rem;
}

.content-img-expands {
    display: block;
    width: 100%;
    height: 18rem;
    min-height: 18rem;
    flex-shrink: 0;
    object-fit: cover;
}
@media (min-width: 768px) {
    .content-img-expands {
        height: 24rem;
        min-height: 24rem;
    }
}

.tips-cards__card {
    max-width: 24rem;
}

/* glossary zig — reserved for layout-only hooks; motion lives in Tailwind on @sem('row'). */

.watermark-number__tile {
  min-width: 260px;
  max-width: 380px;
  min-height: 300px;
}

.watermark-number__bg {
  z-index: 0;
}

.watermark-number__tile::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.watermark-number__tile--0::before {
  background-image: radial-gradient(
    circle at 20% 15%,
    rgba(var(--bs-primary-rgb), 0.16) 0,
    transparent 45%
  );
}

.watermark-number__tile--1::before {
  background-image: repeating-linear-gradient(
    -40deg,
    transparent,
    transparent 12px,
    rgba(var(--bs-primary-rgb), 0.06) 12px,
    rgba(var(--bs-primary-rgb), 0.06) 13px
  );
}

.watermark-number__tile--2::before {
  background-image: radial-gradient(
    rgba(var(--bs-primary-rgb), 0.12) 1.5px,
    transparent 1.5px
  );
  background-size: 16px 16px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 75%);
}

.watermark-number__glyph {
  font-size: clamp(6rem, 14vw, 9rem);
  opacity: 0.35;
}

.watermark-number__mark {
  z-index: 2;
}

.watermark-number__body {
  min-height: 300px;
  z-index: 3;
}

/* subscribe v25 — overlapping avatar stack sizing (no BS analog: fixed size + negative margin overlap) */
.mailing-avatar-stack__item {
    width: 4rem;
    height: 4rem;
    margin-left: -1rem;
    flex-shrink: 0;
}

.mailing-avatar-stack__item:first-child {
    margin-left: 0;
}