/* ============================ Tipografía de sección ====================== */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-body); font-weight: 600; font-size: .9rem;
  letter-spacing: .01em; color: var(--accent-deep);
  background: var(--accent-tint); padding: 7px 15px 7px 12px; border-radius: 999px;
}
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.eyebrow-center { margin: 0 auto; }
.kicker { display: block; font-family: var(--font-body); font-weight: 700; font-size: .82rem; letter-spacing: .09em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 12px; }
.kicker-light { color: rgba(255,255,255,.85); }

.section { padding: clamp(56px, 8vw, 104px) 0; position: relative; }
.section-tint { background: var(--crema-2); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: clamp(30px, 5vw, 52px); }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-title { font-size: clamp(1.9rem, 4.2vw, 3rem); font-weight: 700; }
.section-lead { color: var(--carbon-soft); font-size: 1.12rem; max-width: 56ch; margin: 16px auto 0; }

.round-btn {
  width: 50px; height: 50px; border-radius: 50%; border: 1.5px solid var(--beige);
  background: #fff; color: var(--carbon); cursor: pointer; display: grid; place-items: center;
  transition: border-color .2s, color .2s, transform .2s, box-shadow .2s;
}
.round-btn:hover { border-color: var(--accent); color: var(--accent-deep); transform: translateY(-2px); box-shadow: var(--shadow-card); }
.round-btn-fill { background: var(--accent); color: #fff; border-color: transparent; }

/* ============================ HERO común ================================= */
.hero { position: relative; overflow: hidden; padding: clamp(40px, 7vw, 84px) 0 clamp(56px, 8vw, 96px); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.hero-bg svg { filter: blur(2px); }
.eyebrow, .hero-grid, .hero-c-copy, .hero-b-grid { position: relative; z-index: 1; }
.hero-title {
  font-size: calc(clamp(2.5rem, 5.6vw, 4.5rem) * var(--hero-scale, 1));
  font-weight: 800; letter-spacing: -0.03em; margin: 22px 0 0; max-width: 14ch;
  line-height: 1.06; text-wrap: pretty;
}
.hero-sub { font-size: clamp(1.08rem, 1.6vw, 1.32rem); color: var(--carbon-soft); margin: 22px 0 0; max-width: 50ch; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-trust { display: flex; align-items: center; gap: 10px; margin-top: 26px; color: var(--carbon-soft); font-size: .95rem; }
.hero-trust strong { color: var(--carbon); }

/* Hero A: grid copy + stage */
.hero-grid { display: grid; grid-template-columns: 1fr 1.04fr; gap: 40px; align-items: center; min-height: 520px; }
.hero-stage { position: relative; height: 540px; }
.hero-float { position: absolute; }
.hero-float-inner { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-lift); transition: box-shadow .3s; border: 6px solid #fff; }

/* Hero B: copy + portada protagonista */
.hero-b-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; min-height: 520px; }
.hero-b-cover { position: relative; display: grid; place-items: center; }
.hero-b-stack { position: relative; width: min(330px, 78%); }
.hero-b-card { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-lift); border: 8px solid #fff; }
.hero-b-badge { position: absolute; top: -14px; left: -14px; z-index: 3; background: var(--mostaza); color: #5a3d00; font-weight: 700; padding: 8px 14px; border-radius: 999px; box-shadow: var(--shadow-card); transform: rotate(-5deg); }
.hero-b-info { position: absolute; left: 50%; bottom: -28px; transform: translateX(-50%); width: 90%; background: #fff; border: 1px solid var(--beige); border-radius: var(--r-md); padding: 13px 16px; box-shadow: var(--shadow-card); cursor: pointer; text-align: left; display: flex; flex-direction: column; gap: 4px; transition: transform .2s, box-shadow .2s; }
.hero-b-info:hover { transform: translateX(-50%) translateY(-3px); box-shadow: var(--shadow-hover); }
.hero-b-info-title { font-size: 1.02rem; font-weight: 700; line-height: 1.1; }
.hero-b-info-meta { display: flex; align-items: center; gap: 7px; font-size: .82rem; color: var(--carbon-soft); }

/* Hero C: ilustración + texto centrado */
.hero-c { padding-top: clamp(30px, 5vw, 60px); }
.hero-c-art { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-c-copy { max-width: 760px; margin: 0 auto; text-align: center; padding: clamp(20px, 5vw, 60px) 0 clamp(40px, 6vw, 80px); }
.hero-title-c { margin-left: auto; margin-right: auto; max-width: 18ch; }
.hero-sub-c { margin-left: auto; margin-right: auto; }
.hero-c-copy .hero-ctas, .hero-c-copy .hero-trust { justify-content: center; }

@media (max-width: 900px) {
  .hero-grid, .hero-b-grid { grid-template-columns: 1fr; }
  .hero-stage { height: 380px; order: -1; margin-bottom: 10px; }
  .hero-b-cover { margin-top: 18px; }
  .hero-title { max-width: 18ch; }
}

/* ============================ Bloques de valor =========================== */
.section-values { padding-top: clamp(30px, 4vw, 48px); }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card { background: #fff; border: 1px solid var(--beige); border-radius: var(--r-lg); padding: 30px 26px; box-shadow: var(--shadow-card); }
.value-icon { width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; box-shadow: var(--shadow-soft); margin-bottom: 18px; }
.value-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.value-text { color: var(--carbon-soft); }
@media (max-width: 820px) { .values-grid { grid-template-columns: 1fr; } }

/* ============================ Carrusel =================================== */
.carousel-nav { display: flex; gap: 10px; }
.carousel-track { display: flex; gap: 22px; overflow-x: auto; padding: 8px 22px 24px; scroll-snap-type: x mandatory; cursor: grab; max-width: 1244px; margin: 0 auto; }
.carousel-track.grabbing { cursor: grabbing; }
.carousel-item { flex: 0 0 clamp(240px, 30vw, 290px); scroll-snap-align: start; }
.carousel-end { flex: 0 0 200px; display: grid; place-items: center; }
.carousel-end-link { display: flex; flex-direction: column; align-items: center; gap: 12px; font-weight: 600; color: var(--accent-deep); }

/* ============================ Cómo elegimos ============================== */
.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.steps-line { position: absolute; top: 30px; left: 6%; width: 88%; height: 20px; z-index: 0; }
.step { position: relative; z-index: 1; text-align: center; padding: 0 6px; }
.step-num { display: inline-grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: #fff; border: 2px solid var(--accent); color: var(--accent-deep); font-size: 1.5rem; font-weight: 700; margin-bottom: 18px; box-shadow: var(--shadow-soft); }
.step-title { font-size: 1.28rem; font-weight: 700; margin-bottom: 8px; }
.step-text { color: var(--carbon-soft); font-size: .98rem; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr 1fr; gap: 30px 18px; } .steps-line { display: none; } }
@media (max-width: 480px) { .steps { grid-template-columns: 1fr; } }

/* ============================ Testimonios ================================ */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.testi-card { background: #fff; border: 1px solid var(--beige); border-radius: var(--r-lg); padding: 28px 26px; box-shadow: var(--shadow-card); display: flex; flex-direction: column; gap: 16px; }
.testi-text { font-family: var(--font-display); font-size: 1.22rem; line-height: 1.4; font-weight: 500; margin: 0; letter-spacing: -0.01em; }
.testi-who { display: flex; align-items: center; gap: 13px; margin-top: auto; }
.testi-avatar { width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 1.15rem; font-family: var(--font-display); }
.testi-name { display: block; font-weight: 700; }
.testi-role { display: block; font-size: .88rem; color: var(--carbon-soft); }
@media (max-width: 820px) { .testi-grid { grid-template-columns: 1fr; } }

/* ============================ Aulas y bibliotecas ======================== */
.schools { position: relative; overflow: hidden; background: var(--cielo); border-radius: var(--r-xl); padding: clamp(34px, 5vw, 60px); display: grid; grid-template-columns: 200px 1fr; gap: 34px; align-items: center; box-shadow: 0 30px 70px -34px rgba(124,196,232,.7); }
.schools-deco { position: relative; display: grid; place-items: center; }
.schools-title { font-size: clamp(1.6rem, 3.2vw, 2.4rem); color: #0d3a52; margin-bottom: 12px; }
.schools-text { color: #16475f; max-width: 56ch; margin-bottom: 24px; font-size: 1.06rem; }
@media (max-width: 760px) { .schools { grid-template-columns: 1fr; text-align: left; } .schools-deco { display: none; } }

/* ============================ CTA final ================================== */
.final-cta { background: var(--accent); color: #fff; }
.final-cta-inner { position: relative; text-align: center; padding: clamp(60px, 9vw, 110px) 22px; }
.final-cta-title { font-size: clamp(2rem, 4.5vw, 3.2rem); color: #fff; max-width: 18ch; margin: 0 auto; }
.final-cta-sub { font-size: 1.18rem; color: rgba(255,255,255,.9); margin: 18px auto 32px; }

/* ============================ Catálogo =================================== */
.catalog-head { position: relative; overflow: hidden; padding: clamp(48px, 7vw, 88px) 0 clamp(28px, 4vw, 44px); background: var(--crema-2); }
.catalog-title { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 6px 0 14px; }
.catalog-count { color: var(--carbon-soft); font-size: 1.16rem; }
.catalog-count strong { color: var(--carbon); }
.catalog-body { display: block; padding-top: 32px; padding-bottom: 60px; }
.catalog-filters-top { background: #fff; border: 1.5px solid var(--beige); border-radius: 22px; padding: 22px 26px; box-shadow: var(--shadow-soft); margin-bottom: 30px; }
.filters { display: flex; flex-direction: column; gap: 26px; }
.filters-top { flex-direction: row; flex-wrap: wrap; align-items: flex-end; gap: 22px 34px; }
.filters-top .filter-group-search { flex: 1 1 240px; min-width: 220px; max-width: 340px; }
.filter-group { display: flex; flex-direction: column; gap: 11px; }
.filter-label { font-weight: 700; font-size: .82rem; letter-spacing: .07em; text-transform: uppercase; color: var(--carbon-soft); }
.search-box { display: flex; align-items: center; gap: 10px; background: #fff; border: 1.5px solid var(--beige); border-radius: 999px; padding: 0 16px; color: var(--carbon-soft); transition: border-color .2s, box-shadow .2s; }
.search-box:focus-within { border-color: var(--accent); box-shadow: var(--shadow-soft); }
.search-input { border: none; outline: none; background: none; padding: 13px 0; font-family: var(--font-body); font-size: 1rem; width: 100%; color: var(--carbon); }
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip { font-family: var(--font-body); font-size: .92rem; font-weight: 500; padding: 9px 15px; border-radius: 999px; border: 1.5px solid var(--beige); background: #fff; color: var(--carbon); cursor: pointer; transition: all .2s; display: inline-flex; align-items: center; gap: 8px; }
.chip:hover { border-color: var(--carbon-soft); }
.chip.on { background: var(--carbon); color: #fff; border-color: var(--carbon); }
.chip-cat.on { background: var(--chip); border-color: var(--chip); color: #fff; }
.chip-dot { width: 9px; height: 9px; border-radius: 50%; }
.chip.on .chip-dot { background: #fff !important; }
.clear-btn { display: inline-flex; align-items: center; gap: 7px; background: none; border: none; cursor: pointer; color: var(--accent-deep); font-weight: 600; font-size: .92rem; padding: 10px 2px; }
.clear-btn.ghost { color: var(--carbon-soft); }

.catalog-result-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.book-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.related-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1080px) { .book-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 820px) { .book-grid { grid-template-columns: repeat(2, 1fr); } }

.filter-fab { display: none; }
@media (max-width: 900px) {
  .catalog-body { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .book-grid, .related-grid { grid-template-columns: 1fr 1fr; gap: 14px; } .related-grid { grid-template-columns: 1fr; } }

/* Empty state */
.empty { text-align: center; padding: 60px 20px; }
.empty-art { position: relative; display: inline-grid; place-items: center; margin-bottom: 22px; }
.empty-title { font-size: 1.5rem; margin-bottom: 8px; }
.empty-text { color: var(--carbon-soft); margin-bottom: 22px; }

/* Filter drawer (móvil) */
.filter-drawer { position: fixed; top: 0; right: 0; z-index: 90; height: 100%; width: min(90vw, 380px); background: var(--crema); transform: translateX(105%); transition: transform .38s cubic-bezier(.3,.9,.3,1); display: flex; flex-direction: column; box-shadow: -20px 0 60px -20px rgba(45,42,50,.4); }
.filter-drawer.open { transform: translateX(0); }
.filter-drawer-body { padding: 22px; overflow-y: auto; flex: 1; }
.filter-drawer-foot { display: flex; align-items: center; gap: 12px; padding: 16px 22px; border-top: 1px solid var(--beige); }

/* ============================ Ficha ===================================== */
.detail-crumb { display: flex; align-items: center; gap: 8px; padding-top: 26px; padding-bottom: 4px; font-size: .9rem; color: var(--carbon-soft); flex-wrap: wrap; }
.detail-crumb a:hover { color: var(--accent-deep); }
.detail-crumb [aria-current] { color: var(--carbon); font-weight: 600; }
.detail-grid { display: grid; grid-template-columns: 0.82fr 1fr; gap: clamp(30px, 5vw, 64px); padding: 30px 22px 20px; align-items: start; }
.detail-left { position: sticky; top: 96px; }
.detail-cover { border-radius: var(--r-lg); overflow: hidden; box-shadow: 0 36px 80px -34px rgba(var(--accent-shadow), .55); border: 10px solid #fff; }
.detail-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.gallery-thumb { border-radius: var(--r-sm); overflow: hidden; border: 1px solid var(--beige); }
.gallery-ph { aspect-ratio: 1; display: grid; place-items: center; }
.gallery-ph .mono { font-size: .62rem; }

.detail-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.detail-title { font-size: clamp(2rem, 4.4vw, 3.1rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.08; }
.detail-right { min-width: 0; }
.detail-rating { display: flex; align-items: center; gap: 9px; margin-top: 18px; color: var(--carbon-soft); flex-wrap: wrap; }
.detail-rating strong { color: var(--carbon); font-size: 1.05rem; }
.detail-lead { font-size: 1.25rem; font-weight: 500; color: var(--carbon); margin-top: 22px; line-height: 1.5; }
.detail-long { color: var(--carbon-soft); margin-top: 16px; font-size: 1.08rem; }
.detail-h { font-size: 1.3rem; font-weight: 700; margin-bottom: 16px; }
.detail-features { margin-top: 34px; }
.feature-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 13px; }
.feature-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 1.05rem; }
.feature-check { flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%; background: var(--menta); display: grid; place-items: center; margin-top: 2px; }
.detail-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 34px; background: var(--crema-2); border-radius: var(--r-lg); padding: 24px; }
.spec { display: flex; flex-direction: column; gap: 4px; }
.spec-k { font-size: .68rem; }
.spec-v { font-weight: 600; font-size: 1.05rem; }
.detail-buy { margin-top: 32px; }
.buy-btn { width: 100%; justify-content: center; font-size: 1.18rem; padding: 20px; background: var(--accent); }
.buy-btn:hover { background: var(--accent-deep); }
.buy-disclaimer { font-size: .85rem; color: var(--carbon-soft); margin-top: 14px; text-align: center; max-width: 52ch; margin-left: auto; margin-right: auto; }
@media (max-width: 860px) {
  .detail-grid { grid-template-columns: 1fr; }
  .detail-left { position: static; max-width: 420px; }
}