/* Shared additions for the product pages and practical teaching guides. */
.breadcrumbs { padding-block: 1rem; font-size: .88rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .4rem .7rem; list-style: none; padding: 0; margin: 0; }
.breadcrumbs li:not(:last-child)::after { content: "›"; margin-left: .7rem; color: var(--muted); }
.detail-page .hero h1 { font-size: clamp(2.25rem,3.6vw,3.5rem); line-height: 1.12; }
.detail-page h2 { font-family: "Minda Bold",sans-serif; font-weight: 400; font-size: clamp(1.8rem,3vw,2.5rem); line-height: 1.2; }
.detail-page h3 { line-height: 1.35; }
.detail-content > p, .detail-content > ol { max-width: 52rem; }
.detail-content a:not(.btn), .breadcrumbs a, .guide-article a { text-decoration: underline; text-underline-offset: .18em; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.hero .detail-price { font-size: 2rem; color: var(--navy); font-weight: 800; margin-block: 1rem; }
.hero .delivery-note { font-size: .85rem; }
.specimen-board { min-width: 0; padding: clamp(1rem,3vw,2rem); background: white; border: 2px solid #d5dfe8; border-radius: 1.7rem; box-shadow: var(--shadow); }
.product-cover { display: block; width: min(100%, 20rem); height: auto; margin: 0 auto 1.25rem; border-radius: 1.25rem; box-shadow: 0 10px 26px rgba(31,52,76,.12); }
.specimen-board h2, .specimen-board h3 { margin-top: 0; }
.specimen { font-size: clamp(2.5rem,5vw,4rem); line-height: 1.5; overflow-wrap: anywhere; }
.specimen.dots { background: var(--pink); border-radius: .8rem; padding: .3rem .6rem; }
.specimen.plain { background: var(--sky); border-radius: .8rem; padding: .3rem .6rem; }
.specimen-note { font-size: .85rem; color: var(--muted); }
.alphabet { font-size: clamp(1.9rem,3vw,2.8rem); overflow-wrap: anywhere; }
.pair { display: grid; gap: 1rem; }
.pair > * { min-width: 0; }
.pair-arrow { font-size: 2rem; text-align: center; }
.guide-article { max-width: 52rem; padding-block: 1rem 3rem; }
.guide-article section { padding-block: 1rem; }
.guide-article h2 { margin-bottom: .8rem; }
.guide-article p, .guide-article li { line-height: 1.8; }
.guide-article .worksheet { background: white; border: 2px solid #d5dfe8; border-radius: 1rem; padding: 1.25rem; }
.writing-line { min-height: 4rem; border-bottom: 2px solid #718393; margin-bottom: 1rem; }
.guide-hero .wrap { max-width: 52rem; }
@media (min-width: 48rem) { .pair { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 47.99rem) {
  .detail-page .nav { gap: .3rem; }
  .detail-page .links { justify-content: flex-end; gap: 0; max-width: 12rem; }
  .detail-page .links a { padding: .6rem; font-size: .85rem; }
}