.logo-img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--dorado);
  box-shadow: 0 0 16px rgba(240,165,0,0.25);
  flex-shrink: 0;
}

.nav-active {
  background: rgba(240,165,0,0.12) !important;
  border: 1px solid rgba(240,165,0,0.25) !important;
  border-radius: 6px !important;
  color: #FFB830 !important;
}

/* ════════════════════════════════
   HERO
════════════════════════════════ */
.anu-hero {
  background: linear-gradient(135deg, #050d1a 0%, #0f1f3d 60%, #0d2a5e 100%);
  padding: 5rem 1.5rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.anu-hero::before {
  content: '';
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(240,165,0,0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.anu-hero-inner {
  max-width: 700px; margin: 0 auto;
  position: relative; z-index: 1;
}
.anu-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: 3rem; color: #fff;
  line-height: 1.2; margin: 1rem 0;
}
.anu-hero h1 span { color: #F0A500; }
.anu-hero p {
  color: rgba(255,255,255,0.6);
  font-size: 1.05rem; line-height: 1.7;
}

/* ════════════════════════════════
   SECCIÓN / GRID DE AÑOS
════════════════════════════════ */
.anu-sec { background: #0a1628; padding-bottom: 4rem; }

.anuario-anos-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 1.3rem;
}

.anuario-ano-card {
  aspect-ratio: 1 / 1;
  background: rgba(255,255,255,0.05);
  border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.3s; cursor: pointer;
  position: relative; display: flex; flex-direction: column;
}
.anuario-ano-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.35);
  border-color: rgba(240,165,0,0.3);
}
.anuario-ano-img {
  flex: 1; background: rgba(255,255,255,0.04);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem; overflow: hidden;
}
.anuario-ano-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.anuario-ano-card:hover .anuario-ano-img img { transform: scale(1.06); }
.anuario-ano-etiqueta {
  position: absolute; top: 10px; left: 10px;
  background: linear-gradient(135deg, var(--dorado), var(--dorado2));
  color: #14204a; font-weight: 800; font-size: 1rem;
  padding: 5px 12px; border-radius: 10px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
}
.anuario-ano-franja {
  padding: 10px 12px;
  background: rgba(0,0,0,0.25);
  font-size: 0.8rem; font-weight: 700; color: var(--blanco);
  text-align: center;
}

/* ════════════════════════════════
   VISOR TIPO LIBRO
════════════════════════════════ */
.libro-contenedor { max-width: 820px; }
.libro-body {
  flex: 1; display: flex; align-items: center; justify-content: center;
  gap: 10px; padding: 1.2rem; min-height: 0;
}
.libro-pagina {
  flex: 1; height: 100%; max-height: 64vh; min-height: 380px;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.35) 100%);
  border-radius: 12px; overflow: hidden; position: relative;
}
.libro-pagina img { width: 100%; height: 100%; object-fit: contain; }
#libro-flip { width: 100%; height: 100%; }
#libro-flip .stf__parent { margin: 0 auto; }
#libro-flip .stf__block { box-shadow: 0 20px 60px rgba(0,0,0,0.5); }
.libro-flecha {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%;
  background: rgba(240,165,0,0.12); border: 1px solid rgba(240,165,0,0.25);
  color: var(--dorado2); font-size: 1.4rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.libro-flecha:hover { background: rgba(240,165,0,0.25); }
.libro-flecha:disabled { opacity: 0.3; cursor: default; }
.libro-footer {
  padding: 0.9rem 1.5rem 1.3rem;
  border-top: 1px solid var(--borde);
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
}
#libro-desc { font-size: 0.85rem; color: var(--texto2); line-height: 1.6; margin: 0; }
.libro-contador { font-size: 0.8rem; color: var(--dorado2); font-weight: 700; white-space: nowrap; }

@media (max-width: 900px) {
  .anuario-anos-grid { grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 600px) {
  .anu-hero h1 { font-size: 2rem; }
  .anuario-anos-grid { grid-template-columns: repeat(2,1fr); }
  .libro-footer { flex-direction: column; align-items: flex-start; }
  .libro-pagina { min-height: 280px; max-height: 50vh; }
  .libro-flecha { width: 34px; height: 34px; font-size: 1.15rem; }
}