/* ==========================================================================
   HOME EXTRAS: tarjetas visuales cortas, ficha de detalle y visor de hojas
   ========================================================================== */

/* ---------- Tarjetas visuales (Reconocer / Observar) ---------- */
.showcase-section { padding: var(--space-3xl) 0; background: var(--color-sand-50); border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.showcase-card { background: #fff; border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--border-light); display: flex; flex-direction: column; transition: transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s ease; }
.showcase-card:hover { transform: translateY(-5px); box-shadow: 0 18px 40px rgba(13,36,18,.16); }
.showcase-media { position: relative; height: 230px; overflow: hidden; }
.showcase-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; display: block; }
.showcase-card:hover .showcase-media img { transform: scale(1.06); }
.showcase-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(13,36,18,0) 40%, rgba(13,36,18,.62) 100%); }
.showcase-tag { position: absolute; left: 1.1rem; bottom: 1rem; z-index: 2; color: #fff; font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; background: rgba(24,61,31,.78); padding: .35rem .8rem; border-radius: 999px; backdrop-filter: blur(4px); }
.showcase-body { padding: 1.5rem 1.6rem 1.7rem; display: flex; flex-direction: column; gap: .8rem; flex: 1; }
.showcase-title { font-family: var(--font-serif); font-size: 1.65rem; line-height: 1.2; color: var(--color-forest-950); margin: 0; }
.showcase-lead { margin: 0; color: var(--text-body); font-size: 1rem; line-height: 1.5; }
.showcase-chips { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .2rem; }
.showcase-chip { background: var(--color-sand-50); border: 1px solid var(--border-light); border-radius: 14px; padding: .5rem .85rem; min-width: 84px; }
.showcase-chip b { display: block; font-family: var(--font-serif); font-size: 1.35rem; color: var(--color-forest-850); line-height: 1.1; }
.showcase-chip span { font-size: .68rem; font-weight: 700; text-transform: uppercase; color: var(--text-muted); letter-spacing: .04em; }
.showcase-chip.warn b { color: var(--color-terracotta-700); }
.showcase-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: auto; padding-top: .6rem; }
.showcase-actions .btn-primary, .showcase-actions .btn-secondary { text-decoration: none; padding: .7rem 1.25rem; font-size: .92rem; cursor: pointer; }

/* ---------- Ficha de detalle ---------- */
.info-sheet-img { width: 100%; height: 190px; object-fit: cover; border-radius: 14px; margin-bottom: 1rem; }
.info-sheet h3 { font-family: var(--font-serif); font-size: 1.6rem; margin: 0 0 .4rem; color: var(--color-forest-950); }
.info-sheet .info-kicker { font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--color-forest-700); }
.info-sheet p { font-size: 1rem; line-height: 1.65; color: var(--text-body); margin: .6rem 0; }
.info-sheet .info-stats { display: flex; flex-wrap: wrap; gap: .7rem; margin: 1rem 0; }
.info-sheet .info-actions { display: flex; gap: .7rem; flex-wrap: wrap; margin-top: 1rem; }

/* ---------- Visor de hojas del paper ---------- */
.flip-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(10,26,14,.92); backdrop-filter: blur(8px); display: none; flex-direction: column; align-items: center; justify-content: center; padding: 1rem; }
.flip-overlay.open { display: flex; }
.flip-close { position: absolute; top: 1rem; right: 1.2rem; background: rgba(255,255,255,.14); color: #fff; border: 0; width: 42px; height: 42px; border-radius: 50%; font-size: 1.4rem; cursor: pointer; }
.flip-close:hover { background: rgba(255,255,255,.28); }
.flip-stage { perspective: 2200px; display: flex; align-items: center; justify-content: center; gap: 1.2rem; width: 100%; flex: 1; min-height: 0; }
.flip-nav { background: #fff; border: 0; width: 52px; height: 52px; border-radius: 50%; font-size: 1.5rem; color: var(--color-forest-900); cursor: pointer; box-shadow: 0 6px 18px rgba(0,0,0,.35); transition: transform .2s; flex-shrink: 0; }
.flip-nav:hover:not(:disabled) { transform: scale(1.1); }
.flip-nav:disabled { opacity: .35; cursor: default; }
.flip-page-wrap { height: 100%; max-height: calc(100vh - 130px); display: flex; align-items: center; justify-content: center; transform-style: preserve-3d; }
.flip-canvas { max-height: 100%; max-width: 100%; border-radius: 4px; background: #fff; box-shadow: 0 20px 60px rgba(0,0,0,.55); transform-origin: left center; }
.flip-canvas.out-next { animation: flipOutNext .28s ease-in forwards; }
.flip-canvas.in-next { animation: flipInNext .32s ease-out; }
.flip-canvas.out-prev { animation: flipOutPrev .28s ease-in forwards; }
.flip-canvas.in-prev { animation: flipInPrev .32s ease-out; }
@keyframes flipOutNext { to { transform: rotateY(-75deg); opacity: .15; } }
@keyframes flipInNext { from { transform: rotateY(40deg); opacity: .2; } to { transform: rotateY(0); opacity: 1; } }
@keyframes flipOutPrev { to { transform: rotateY(75deg); opacity: .15; } }
@keyframes flipInPrev { from { transform: rotateY(-40deg); opacity: .2; } to { transform: rotateY(0); opacity: 1; } }
.flip-bar { color: #fff; font-weight: 700; font-size: .95rem; margin-top: .8rem; display: flex; gap: 1.2rem; align-items: center; }
.flip-bar a { color: #C5DDB8; text-decoration: none; font-weight: 700; }
.flip-loading { color: #fff; position: absolute; font-weight: 700; }
.btn-hero-read { background: transparent; color: var(--color-forest-900) !important; font-weight: 700; font-size: .96rem; padding: .85rem 1.4rem; border-radius: 999px; border: 1.5px dashed #9EC68B; cursor: pointer; display: inline-flex; align-items: center; gap: .5rem; }
.btn-hero-read:hover { background: #E4EEDC; }
.book-3d-wrapper { cursor: pointer; }

@media (max-width: 900px) { .showcase-grid { grid-template-columns: 1fr; } .flip-nav { width: 42px; height: 42px; } }

/* ==========================================================================
   VISOR OFICIAL DE PDF EN ALTA DEFINICIÓN (VECTORIAL)
   ========================================================================== */
.pdf-viewer-container {
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(18, 48, 25, 0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  width: 100%;
  margin: 0 auto;
}

.pdf-viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  padding: 1.1rem 1.4rem;
  background: linear-gradient(180deg, #F9FAF7 0%, #F1F5ED 100%);
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.pdf-header-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-align: left;
}

.pdf-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-forest-850);
  background: #E2ECD8;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  border: 1px solid #C4D9B5;
}

.pdf-doc-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-forest-950);
  line-height: 1.3;
}

.pdf-doc-subtitle {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.pdf-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn-pdf-action {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #FFFFFF;
  color: var(--color-forest-900);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-pill);
  padding: 0.48rem 0.95rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.btn-pdf-action:hover {
  background: var(--color-sand-50);
  border-color: var(--color-forest-700);
  transform: translateY(-1px);
  color: var(--color-forest-950);
}

.btn-pdf-action.btn-download {
  background: var(--color-forest-850);
  color: #FFFFFF !important;
  border-color: var(--color-forest-850);
}

.btn-pdf-action.btn-download:hover {
  background: var(--color-forest-950);
  color: #FFFFFF !important;
}

.pdf-viewer-frame-wrap {
  width: 100%;
  height: 840px;
  background: #525659; /* Fondo neutral del visor PDF */
  position: relative;
}

.pdf-viewer-frame-wrap object,
.pdf-viewer-frame-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.pdf-viewer-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.4rem;
  background: #FAFCF8;
  border-top: 1px solid var(--border-light);
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.pdf-footer-tip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  text-align: left;
}

.pdf-footer-tip kbd {
  background: #E8ECE4;
  border: 1px solid var(--border-medium);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.75rem;
  font-family: inherit;
  font-weight: 700;
  color: var(--color-forest-900);
}

.pdf-quick-dl {
  color: var(--color-forest-750);
  font-weight: 700;
  text-decoration: none;
}

.pdf-quick-dl:hover {
  text-decoration: underline;
}

/* Pantalla completa */
.pdf-viewer-container:fullscreen,
.pdf-viewer-container:-webkit-full-screen,
.pdf-viewer-container.is-fullscreen {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 999999 !important;
  border-radius: 0 !important;
  margin: 0 !important;
  max-width: 100vw !important;
  display: flex !important;
  flex-direction: column !important;
  background: #525659 !important;
}

.pdf-viewer-container:fullscreen .pdf-viewer-frame-wrap,
.pdf-viewer-container:-webkit-full-screen .pdf-viewer-frame-wrap,
.pdf-viewer-container.is-fullscreen .pdf-viewer-frame-wrap {
  height: calc(100vh - 120px) !important;
  flex: 1 !important;
}

#tab-resumen {
  width: 100%;
  max-width: 100%;
}

@media (min-width: 993px) and (max-width: 1400px) {
  .paper-container {
    grid-template-columns: 310px 1fr !important;
    gap: var(--space-xl) !important;
  }
}

/* Tarjeta alternativa para móviles */
.pdf-mobile-card {
  display: none;
}

/* ---------- Accesos rapidos (solo movil) ---------- */
.mobile-quick-actions { display: none; }

@media (max-width: 768px) {
  .pdf-viewer-container {
    display: none !important;
  }

  .pdf-mobile-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 2rem 1.25rem;
    box-shadow: var(--shadow-sm);
  }

  .pdf-mob-badge {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--color-forest-850);
    background: #E7F0E0;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
  }

  .pdf-mobile-card h3 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    color: var(--color-forest-950);
    margin: 0 0 0.5rem;
    line-height: 1.25;
  }

  .pdf-mobile-card p {
    font-size: 0.92rem;
    color: var(--text-body);
    line-height: 1.55;
    margin: 0 0 1.35rem;
    max-width: 26rem;
  }

  .pdf-mob-actions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    width: 100%;
    max-width: 320px;
  }

  .hero-lead-text, .hero-doc-badge { display: none; }
  .hero-main-title { font-size: 1.9rem; margin-bottom: 1rem; }
  .hero-cta-buttons { gap: .6rem; }
  .hero-cta-buttons .btn-hero-download, .hero-cta-buttons .btn-hero-explore, .hero-cta-buttons .btn-hero-read { flex: 1 1 100%; justify-content: center; }
  .hero-floating-metrics-card { right: -6px; bottom: -14px; padding: .5rem .9rem; gap: .7rem; }
  .book-3d-wrapper { width: 300px; }
  .hub-card-desc, .showcase-lead, .paper-sidebar-card, .section-subtitle { display: none; }
  .showcase-media { height: 170px; }
  .showcase-title { font-size: 1.35rem; }
  .paper-tabs-nav { overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
  .paper-tabs-nav::-webkit-scrollbar { display: none; }
  .section-header-bar p { display: none; }
  .mobile-quick-actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; padding: 1rem 1rem 0; background: var(--color-sand-50); position: relative; z-index: 5; }
  .mobile-quick-actions a, .mobile-quick-actions button { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .3rem; padding: .85rem .3rem; background: #fff; border: 1px solid var(--border-light); border-radius: 16px; font-size: .74rem; font-weight: 800; color: var(--color-forest-900); text-decoration: none; box-shadow: var(--shadow-sm); cursor: pointer; font-family: inherit; }
  .mobile-quick-actions .qa-icon { font-size: 1.3rem; line-height: 1; }
  .mobile-quick-actions .qa-primary { background: var(--color-forest-850); color: #fff; border-color: var(--color-forest-850); }
}