.education-page { background: var(--ink); color: var(--paper); }
.education-page .site-header { color: var(--paper); }
.education-page .site-header:not(.is-scrolled) { background: var(--ink-deep); border-color: var(--line); }

.product-cover { padding: 0 var(--pad); }
.product-cover img { display: block; width: 100%; max-width: 86rem; height: auto; aspect-ratio: 1734 / 907; object-fit: cover; margin: 0 auto; }

.product-hero { padding: clamp(7.5rem, 12vw, 10.5rem) var(--pad) clamp(3rem, 6vw, 5.5rem); background: radial-gradient(120% 90% at 18% 0%, #1c2330 0%, var(--ink) 58%); }
.product-hero-inner { max-width: 86rem; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.product-breadcrumbs { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: clamp(1.75rem, 4vw, 3rem); color: var(--paper-dim); font-size: .8rem; }
.product-breadcrumbs a:hover { color: var(--paper); }
.product-only { margin: 0 0 .9rem; color: var(--accent); text-transform: uppercase; letter-spacing: .22em; font-size: .72rem; font-weight: 650; }
.product-hero h1 { margin: 0 0 1.5rem; font-size: clamp(2.9rem, 6.2vw, 6.2rem); text-wrap: balance; }
.product-deck { max-width: 40rem; margin-bottom: 1.4rem; color: var(--paper-muted); font-size: clamp(1.15rem, 1.8vw, 1.5rem); line-height: 1.5; }
.product-hero-note { max-width: 38rem; margin: 0; color: var(--paper-dim); font-size: .92rem; }

.product-order { padding: clamp(1.35rem, 2.6vw, 2.1rem); border: 1px solid var(--line-strong); background: var(--surface); }
.product-order-label { margin: 0 0 1rem; color: var(--paper-dim); text-transform: uppercase; letter-spacing: .14em; font-size: .68rem; font-weight: 650; }
.product-order .price { margin: 0 0 1.25rem; font-family: var(--serif); font-size: clamp(2.4rem, 4.4vw, 3.4rem); line-height: 1; }
.product-order-facts { list-style: none; margin: 0 0 1.6rem; padding: 0; }
.product-order-facts li { padding: .7rem 0; border-bottom: 1px solid var(--line); color: var(--paper-muted); font-size: .95rem; }
.product-order-facts li:first-child { border-top: 1px solid var(--line); }
.product-order .button { width: 100%; text-align: center; }
.product-order-note { margin: 1rem 0 0; color: var(--paper-dim); font-size: .78rem; line-height: 1.5; }

.product-story { padding: clamp(3rem, 6vw, 5.5rem) var(--pad) var(--section); }
.product-story-inner { max-width: 55rem; margin: 0 auto; }
.product-story p { color: var(--paper-muted); font-size: clamp(1.08rem, 1.5vw, 1.28rem); line-height: 1.72; }
.product-story p.is-emphasis { color: var(--paper); font-family: var(--serif); font-size: clamp(1.5rem, 2.6vw, 2.25rem); line-height: 1.3; }
.product-story p:last-child { margin-bottom: 0; }

.product-section { padding: var(--section) var(--pad); border-top: 1px solid var(--line); }
.product-section--deep { background: var(--ink-deep); }
.product-section--paper { background: var(--paper); color: var(--ink); border-top-color: rgba(17, 21, 27, .16); }
.product-section-inner { max-width: 86rem; margin: 0 auto; }
.product-heading { display: grid; grid-template-columns: minmax(9rem, .4fr) 1.6fr; gap: 1.6rem; align-items: start; margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.product-heading h2 { margin: 0; max-width: 46rem; font-size: clamp(2.3rem, 4.8vw, 4.6rem); }
.product-heading .kicker { padding-top: .45rem; }
.product-section--paper .kicker { color: var(--accent-dark); }

.audio-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.audio-card { padding: clamp(1.25rem, 2.6vw, 2.25rem); background: var(--surface); }
.audio-card-icon { display: block; font-size: 1.1rem; line-height: 1; }
.audio-card h3 { margin: .85rem 0 .7rem; font-family: var(--serif); font-weight: 400; font-size: clamp(1.35rem, 2.1vw, 1.9rem); line-height: 1.16; }
.audio-card p { margin: 0; color: var(--paper-muted); font-size: clamp(.98rem, 1.25vw, 1.08rem); line-height: 1.65; }

.for-whom-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--line); }
.for-whom-list li { position: relative; padding: 1.4rem 1.5rem 1.4rem 2.9rem; background: var(--ink); color: var(--paper-muted); font-size: clamp(1rem, 1.3vw, 1.14rem); line-height: 1.55; }
.for-whom-list li::before { content: '—'; position: absolute; left: 1.35rem; color: var(--accent); }
.for-whom-closing { max-width: 46rem; margin: clamp(2rem, 4vw, 3rem) 0 0; color: var(--paper-dim); font-size: 1rem; }

.format-facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-bottom: clamp(2rem, 4vw, 3rem); border: 1px solid rgba(17, 21, 27, .18); background: rgba(17, 21, 27, .18); }
.format-facts > div { padding: clamp(1.1rem, 2vw, 1.6rem); background: var(--paper); }
.format-facts dt { font-family: var(--serif); font-size: clamp(1.6rem, 2.8vw, 2.4rem); line-height: 1.05; }
.format-facts dd { margin: .5rem 0 0; color: #5c6169; font-size: .88rem; }
.product-format-copy { max-width: 46rem; }
.product-format-copy p { color: #414650; font-size: clamp(1.04rem, 1.4vw, 1.2rem); line-height: 1.7; }
.product-format-copy p:last-of-type { margin-bottom: 0; }
.product-format-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem 1.75rem; margin-top: clamp(1.75rem, 3.5vw, 2.75rem); }
.product-format-actions .product-cta-note { margin: 0; color: #5c6169; font-size: .88rem; }

.product-review-inner { max-width: 62rem; margin: 0 auto; }
.product-review blockquote { margin: 0; font-family: var(--serif); font-size: clamp(1.7rem, 3.4vw, 3rem); line-height: 1.24; }
.product-review cite { display: block; margin-top: 1.6rem; color: var(--paper-dim); font-style: normal; text-transform: uppercase; letter-spacing: .13em; font-size: .74rem; font-weight: 650; }

.product-author-inner { display: grid; grid-template-columns: minmax(0, .5fr) minmax(0, 1.5fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.product-author-inner h2 { margin: 0; font-size: clamp(2.3rem, 4.6vw, 4.4rem); }
.product-author-copy p { color: var(--paper-muted); font-size: clamp(1.06rem, 1.4vw, 1.2rem); line-height: 1.72; }
.product-author-sign { margin-top: 1.75rem; color: var(--paper); font-family: var(--serif); font-size: clamp(1.3rem, 2vw, 1.7rem); }

.product-related { margin-top: clamp(2rem, 4vw, 3rem); padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--paper-dim); font-size: .95rem; }
.product-related a { color: var(--paper); border-bottom: 1px solid var(--line-strong); }

.product-final { padding: var(--section) var(--pad); border-top: 1px solid var(--line); background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%); }
.product-final-inner { max-width: 86rem; margin: 0 auto; }
.product-final h2 { max-width: 52rem; margin: 0 0 1.75rem; font-size: clamp(2.6rem, 5.6vw, 5.4rem); }
.product-final-summary { max-width: 40rem; color: var(--paper-muted); font-size: clamp(1.06rem, 1.5vw, 1.25rem); }
.product-final-price { margin: 1.75rem 0 2rem; font-family: var(--serif); font-size: clamp(2rem, 3.4vw, 3rem); }
.product-final-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem 2rem; }
.product-final .product-cta-note { max-width: 34rem; margin: 1.25rem 0 0; color: var(--paper-dim); font-size: .82rem; }

@media (max-width: 900px) {
  .product-hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .product-author-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .product-heading { grid-template-columns: 1fr; gap: 1.1rem; margin-bottom: 3rem; }
  .format-facts { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .product-hero { padding-top: 6.6rem; }
  .product-hero h1 { font-size: clamp(2.9rem, 13vw, 4.4rem); }
  .product-deck { font-size: 1.06rem; }
  .product-story p { font-size: 1.06rem; }
  .product-story p.is-emphasis { font-size: 1.5rem; }
  .audio-grid { grid-template-columns: 1fr; }
  .audio-card { padding: 1.15rem 1.25rem; }
  .audio-card h3 { margin: .7rem 0 .55rem; font-size: 1.3rem; }
  .audio-card p { font-size: .99rem; line-height: 1.6; }
  .for-whom-list { grid-template-columns: 1fr; }
  .for-whom-list li { padding: 1.15rem 0 1.15rem 2.4rem; }
  .for-whom-list li::before { left: .9rem; }
  .product-heading h2 { font-size: 2.5rem; }
  .product-author-inner h2 { font-size: 2.5rem; }
  .product-final h2 { font-size: clamp(2.6rem, 12.5vw, 4.2rem); }
  .product-order .button,
  .product-format-actions .button,
  .product-final-actions .button { width: 100%; }
  .product-format-actions,
  .product-final-actions { align-items: stretch; }
}

@media (max-width: 390px) {
  .product-hero { padding-top: 6.1rem; }
  .product-hero h1 { font-size: 2.8rem; }
  .product-heading h2 { font-size: 2.3rem; }
  .format-facts { grid-template-columns: 1fr; }
  .audio-card h3 { font-size: 1.22rem; }
}

/* --- Education catalog (/education/) --- */
.education-hero { padding: clamp(7.5rem, 12vw, 10.5rem) var(--pad) clamp(3rem, 6vw, 5rem); background: radial-gradient(120% 90% at 18% 0%, #1c2330 0%, var(--ink) 58%); }
.education-hero-inner { max-width: 86rem; margin: 0 auto; }
.education-hero .kicker { color: var(--accent); }
.education-hero h1 { margin: 1.4rem 0 1.5rem; font-size: clamp(2.9rem, 6.2vw, 6.2rem); text-wrap: balance; }
.education-hero p:not(.kicker) { max-width: 46rem; color: var(--paper-muted); font-size: clamp(1.08rem, 1.6vw, 1.32rem); line-height: 1.6; }

.education-catalog { padding: var(--section) var(--pad); }
.education-catalog-inner { max-width: 86rem; margin: 0 auto; }
.education-catalog-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .75rem 1.5rem; margin-bottom: clamp(2rem, 4vw, 3rem); padding-bottom: 1.1rem; border-bottom: 1px solid var(--line); }
.education-catalog-head h2 { margin: 0; font-size: clamp(1.5rem, 2.4vw, 2.2rem); }
.education-count { margin: 0; color: var(--paper-dim); font-size: .78rem; text-transform: uppercase; letter-spacing: .14em; font-weight: 650; }

.catalog-grid { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); }
.catalog-card { display: grid; grid-template-columns: minmax(16rem, .85fr) minmax(0, 1.15fr); gap: clamp(1.75rem, 4vw, 3.5rem); align-items: center; padding: clamp(1.25rem, 2.6vw, 2rem); border: 1px solid var(--line); background: linear-gradient(135deg, rgba(123, 131, 187, .14) 0%, rgba(24, 30, 39, .92) 60%); }
.catalog-card-image { display: block; overflow: hidden; border: 1px solid var(--line); background: var(--ink-deep); }
.catalog-card-image img { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: cover; transition: transform .5s ease; }
.catalog-card-image:hover img { transform: scale(1.02); }
.catalog-card-tag { display: inline-block; margin: 0 0 1rem; padding: .32rem .55rem; background: var(--accent); color: var(--ink); text-transform: uppercase; letter-spacing: .1em; font-size: .66rem; font-weight: 650; }
.catalog-card h3 { margin: 0 0 .5rem; font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 3.6vw, 3.2rem); line-height: 1.05; letter-spacing: -.025em; }
.catalog-card h3 a:hover { color: var(--accent); }
.catalog-card-sub { margin: 0 0 1rem; color: var(--paper); text-transform: uppercase; letter-spacing: .16em; font-size: .7rem; font-weight: 650; }
.catalog-card-meta { margin: 0 0 1.1rem; color: var(--paper-muted); font-size: .95rem; }
.catalog-card-price { color: var(--paper); font-family: var(--serif); font-size: 1.4rem; }
.catalog-card-text { max-width: 42rem; margin: 0 0 1.6rem; color: var(--paper-muted); font-size: clamp(1rem, 1.3vw, 1.12rem); line-height: 1.65; }

@media (max-width: 767px) {
  .education-hero { padding-top: 6.6rem; }
  .education-hero h1 { font-size: 2.8rem; }
  .catalog-card { grid-template-columns: 1fr; padding: 1rem; }
  .catalog-card h3 { font-size: 2rem; }
  .catalog-card .button { width: 100%; text-align: center; }
}