*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --azul:#1F4E79;
  --azul-desc:#3B82C4;
  --niebla:#EBF3FB;
  --tierra:#A0714F;
  --gris:#6B7280;
  --negro:#1A1A1A;
  --blanco:#FFFFFF;
  --fondo:#FDFAF7;
  --borde:rgba(0,0,0,0.08);
  --serif:'Playfair Display',Georgia,serif;
  --sans:'Jost',Arial,sans-serif;
}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--fondo);color:var(--negro);line-height:1.7;font-weight:300}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(253,250,247,0.96);backdrop-filter:blur(8px);border-bottom:.5px solid var(--borde);padding:0 48px;display:flex;align-items:center;justify-content:space-between;height:52px}
.nav-logo{display:flex;align-items:center}
.nav-logo-img{height:46px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--gris);transition:color .2s}
.nav-links a:hover{color:var(--azul)}
.nav-links a.active{color:var(--azul)}
.nav-cta{color:var(--azul) !important;border:.5px solid var(--azul);padding:5px 14px;border-radius:3px;transition:all .2s !important}
.nav-cta:hover{background:var(--azul);color:var(--blanco) !important}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-burger span{display:block;width:20px;height:1px;background:var(--negro)}
.progress-bar{position:fixed;top:52px;left:0;z-index:99;height:2px;background:var(--azul-desc);width:0%;transition:width .1s linear;opacity:.8}

/* PAGE HEADER */
.page-header{background:#0d1e2e;padding:120px 96px 80px;position:relative;overflow:hidden}
.page-header::before{content:'';position:absolute;left:48px;top:72px;bottom:40px;width:1.5px;background:rgba(255,255,255,.08)}
.page-header-label{font-size:9px;font-weight:500;color:rgba(255,255,255,.25);letter-spacing:.22em;text-transform:uppercase;margin-bottom:20px}
.page-header-title{font-family:var(--serif);font-size:clamp(36px,4vw,54px);font-weight:400;color:var(--blanco);line-height:1.08;max-width:640px;margin-bottom:16px}
.page-header-title em{font-style:italic;color:rgba(255,255,255,.45)}
.page-header-sep{display:flex;align-items:center;width:80px;margin-bottom:20px}
.page-header-sep-line{flex:1;height:.5px;background:rgba(255,255,255,.15)}
.page-header-sep-dot{width:4px;height:4px;border-radius:50%;background:var(--tierra);margin:0 8px;flex-shrink:0}
.page-header-sub{font-size:14px;font-weight:300;color:rgba(255,255,255,.3);max-width:520px;line-height:1.85}
.page-header-autor{display:flex;align-items:center;gap:8px;margin-top:20px}
.page-header-autor-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2);flex-shrink:0}
.page-header-autor-text{font-size:11px;color:rgba(255,255,255,.25);letter-spacing:.06em}

/* DARK ICON */
.dark-icon{position:absolute;right:48px;top:50%;transform:translateY(-50%);width:220px;height:220px;pointer-events:none;z-index:10;animation:iconFloat 7s ease-in-out infinite}
.dark-icon img{width:100%;height:100%;object-fit:contain}

/* LOGO GRIS EN HEADER */
.header-logo-deco{
  position:absolute;
  right:200px;top:50%;
  transform:translateY(-50%);
  height:72px;width:auto;
  pointer-events:none;
  z-index:20;
  opacity:1;
}
@keyframes iconFloat{0%,100%{transform:translateY(-50%) rotate(0deg)}33%{transform:translateY(calc(-50% - 10px)) rotate(1.5deg)}66%{transform:translateY(calc(-50% - 5px)) rotate(-1deg)}}

/* LAYOUT */
.main{max-width:1100px;margin:0 auto;padding:72px 48px}
p{font-size:14px;font-weight:300;color:var(--gris);line-height:1.85;max-width:none;margin-bottom:12px}

/* BARRA DE BÚSQUEDA + FILTROS */
.busqueda-wrap{
  display:flex;flex-direction:column;gap:16px;
  margin-bottom:40px;
}
.buscador{
  position:relative;
}
.buscador-input{
  width:100%;
  background:var(--blanco);
  border:.5px solid var(--borde);
  border-radius:6px;
  padding:14px 48px 14px 18px;
  font-family:var(--sans);
  font-size:14px;font-weight:300;
  color:var(--negro);
  outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.buscador-input::placeholder{color:var(--gris);opacity:.5}
.buscador-input:focus{border-color:var(--azul-desc);box-shadow:0 0 0 3px rgba(59,130,196,.08)}
.buscador-icon{
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  color:var(--gris);opacity:.4;
  pointer-events:none;font-size:16px;
}

.categorias{
  display:flex;gap:8px;flex-wrap:wrap;align-items:center;
}
.cat-label{
  font-size:10px;font-weight:500;letter-spacing:.1em;
  text-transform:uppercase;color:var(--gris);
  margin-right:4px;flex-shrink:0;
}
.cat-btn{
  padding:6px 14px;border-radius:4px;
  font-family:var(--sans);font-size:11px;font-weight:500;
  letter-spacing:.06em;text-transform:uppercase;
  border:.5px solid var(--borde);
  background:var(--blanco);color:var(--gris);
  cursor:pointer;transition:all .2s;
}
.main{max-width:1100px;margin:0 auto;padding:72px 48px 0}
.cat-btn:hover{border-color:var(--azul);color:var(--azul)}
.cat-btn.active{background:var(--azul);color:var(--blanco);border-color:var(--azul)}
.cat-btn.active:hover{background:#163a5e}

/* RESULTADO BUSCADOR */
.busqueda-estado{
  font-size:12px;color:var(--gris);
  padding:8px 0;
  border-bottom:.5px solid var(--borde);
  margin-bottom:0;
  display:none;
}
.busqueda-estado.visible{display:block}

/* ENTRADA DESTACADA */
/* COLORES POR CATEGORÍA */
:root{
  --cat-estrategia:#3B82C4;
  --cat-cultura:#A0714F;
  --cat-liderazgo:#4E7B62;
  --cat-proposito:#7B6B9E;
}

.entrada-destacada{
  display:grid;grid-template-columns:1fr 320px;
  gap:0;
  border:.5px solid rgba(255,255,255,.08);
  border-radius:10px;overflow:hidden;
  margin-bottom:8px;
  transition:box-shadow .25s,transform .25s;
  cursor:pointer;
}
.entrada-destacada:hover{box-shadow:0 12px 40px rgba(0,0,0,.25);transform:translateY(-2px)}
.entrada-dest-content{
  padding:40px 44px;
  background:var(--negro);
  display:flex;flex-direction:column;justify-content:space-between;
  border-top:4px solid var(--cat-proposito);
}
.entrada-dest-badges{display:flex;gap:8px;align-items:center;margin-bottom:20px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:4px 10px;border-radius:4px;font-size:9px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;text-align:center}
.badge-reciente{background:rgba(59,130,196,.2);color:var(--azul-desc)}
.badge-cat{background:rgba(255,255,255,.08);color:rgba(255,255,255,.5);border:.5px solid rgba(255,255,255,.1)}
.badge-dot{width:4px;height:4px;border-radius:50%;background:currentColor;flex-shrink:0}
.entrada-dest-title{font-family:var(--serif);font-size:clamp(22px,2.5vw,30px);font-weight:400;color:var(--blanco);line-height:1.25;margin-bottom:16px}
.entrada-dest-title em{font-style:italic;color:rgba(255,255,255,.6)}
.entrada-dest-excerpt{font-size:14px;font-weight:300;color:rgba(255,255,255,.4);line-height:1.8;flex:1;margin:0}
.entrada-dest-meta{display:flex;align-items:center;justify-content:space-between;padding-top:20px;margin-top:20px;border-top:.5px solid rgba(255,255,255,.08)}
.entrada-dest-fecha{font-size:11px;color:rgba(255,255,255,.25);letter-spacing:.06em}
.entrada-dest-link{font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--azul-desc);display:flex;align-items:center;gap:6px;transition:gap .2s}
.entrada-dest-link:hover{gap:10px}
.entrada-dest-img{background:#0d1e2e;position:relative;overflow:hidden;min-height:280px}
.entrada-dest-img img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.entrada-dest-img-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.entrada-dest-img-placeholder svg{opacity:.15;width:72px;height:72px}

/* DIVISOR SECCIÓN */
.slabel{font-size:9px;font-weight:500;color:var(--gris);letter-spacing:.14em;text-transform:uppercase;padding:20px 0 12px;border-bottom:.5px solid var(--borde);border-top:.5px solid var(--borde);margin:8px 0 0}

/* LISTA ENTRADAS */
.entradas-lista{display:flex;flex-direction:column}

.entrada{
  display:grid;grid-template-columns:100px 1fr auto;
  gap:2rem;padding:22px 16px 22px 32px;
  border-bottom:.5px solid var(--borde);
  border-left:4px solid transparent;
  align-items:start;
  cursor:pointer;
  transition:background .2s;
  border-radius:0 4px 4px 0;
}
.entrada:hover{background:rgba(31,78,121,.04)}
.entrada[data-cat="estrategia"]{border-left-color:var(--cat-estrategia)}
.entrada[data-cat="cultura"]{border-left-color:var(--cat-cultura)}
.entrada[data-cat="liderazgo"]{border-left-color:var(--cat-liderazgo)}
.entrada[data-cat="proposito"]{border-left-color:var(--cat-proposito)}
.entrada:not(.dark):hover .entrada-title{color:var(--azul)}

.entrada-date-block{display:flex;flex-direction:column;padding-top:4px}
.entrada-mes{font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--gris)}
.entrada-anio{font-size:11px;color:var(--gris);opacity:.45}
.entrada-body{}
.entrada-title{font-family:var(--serif);font-size:20px;font-weight:400;color:var(--negro);line-height:1.3;margin-bottom:6px;transition:color .2s}
.entrada-title em{font-style:italic}
.entrada:not(.dark):hover .entrada-title{color:var(--azul)}
.entrada-excerpt{font-size:13px;font-weight:300;color:var(--gris);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* Badges de categoría con color */
.entrada-badge{
  padding:4px 10px;border-radius:4px;
  font-size:9px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  white-space:nowrap;flex-shrink:0;
  margin-top:4px;align-self:start;
  border:.5px solid transparent;
}

/* NOTA AUTOR — sin margen extra abajo */
.nota-autor-dup{display:none}
.entrada[data-cat="estrategia"] .entrada-badge{background:rgba(59,130,196,.1);color:var(--cat-estrategia);border-color:rgba(59,130,196,.2)}
.entrada[data-cat="cultura"] .entrada-badge{background:rgba(160,113,79,.1);color:var(--cat-cultura);border-color:rgba(160,113,79,.2)}
.entrada[data-cat="liderazgo"] .entrada-badge{background:rgba(78,123,98,.1);color:var(--cat-liderazgo);border-color:rgba(78,123,98,.2)}
.entrada[data-cat="proposito"] .entrada-badge{background:rgba(123,107,158,.1);color:var(--cat-proposito);border-color:rgba(123,107,158,.2)}

/* Botones categoría con color cuando activos */
.cat-btn[data-cat="estrategia"].active{background:var(--cat-estrategia);border-color:var(--cat-estrategia)}
.cat-btn[data-cat="cultura"].active{background:var(--cat-cultura);border-color:var(--cat-cultura)}
.cat-btn[data-cat="liderazgo"].active{background:var(--cat-liderazgo);border-color:var(--cat-liderazgo)}
.cat-btn[data-cat="proposito"].active{background:var(--cat-proposito);border-color:var(--cat-proposito)}

/* SIN RESULTADOS */
.sin-resultados{text-align:center;padding:64px 0;display:none}
.sin-resultados.visible{display:block}
.sin-resultados-title{font-family:var(--serif);font-size:24px;font-style:italic;color:var(--gris);margin-bottom:8px}
.sin-resultados-sub{font-size:13px;color:var(--gris);opacity:.6}

/* NOTA AUTOR */
.nota-autor{background:#6B7280;border-radius:10px;padding:36px 40px;margin-top:48px;margin-bottom:64px;position:relative;overflow:hidden}
.nota-autor::before{content:'';position:absolute;left:20px;top:24px;bottom:24px;width:1.5px;background:rgba(255,255,255,.1)}
.nota-autor-text{font-family:var(--serif);font-size:18px;font-style:italic;color:rgba(255,255,255,.85);line-height:1.6;margin-bottom:10px}
.nota-autor-firma{font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.4)}

/* FADE */
.fade-up{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* FOOTER */
.footer{background:var(--negro);padding:48px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}
.footer-logo{display:flex;flex-direction:column;gap:6px}
.footer-logo-img{height:56px;width:auto;opacity:.9}
.footer-logo span{font-family:var(--sans);font-size:8px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.25)}
.footer-links{display:flex;gap:24px;list-style:none;flex-wrap:wrap}
.footer-links a{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.32);transition:color .2s}
.footer-links a:hover{color:rgba(255,255,255,.75)}
.footer-meta{font-size:9px;color:rgba(255,255,255,.18);letter-spacing:.06em}

/* RESPONSIVE */
@media(max-width:900px){
  .nav{padding:0 24px}
  .page-header{padding:100px 48px 56px}
  .page-header::before{left:24px}
  .main{padding:56px 32px}
  .entrada-destacada{grid-template-columns:1fr}
  .entrada-dest-img{min-height:200px;order:-1}
  .entrada{grid-template-columns:80px 1fr auto;gap:1.25rem}
  .footer{padding:36px}
}
@media(max-width:640px){
  .nav{padding:0 20px}
  .nav-links{display:none}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:52px;left:0;right:0;background:rgba(253,250,247,.98);border-bottom:.5px solid var(--borde);padding:20px 24px;gap:16px}
  .nav-burger{display:flex}
  .page-header{padding:88px 24px 120px;padding-left:52px}
  .header-logo-deco{
    position:absolute;
    right:auto;left:0;
    width:100%;
    top:auto;bottom:28px;
    transform:none;
    height:40px;
    object-fit:contain;
    object-position:center;
  }
  .main{padding:48px 20px}
  .entrada-dest-content{padding:28px 24px}
  .entrada{grid-template-columns:1fr;gap:.75rem}
  .entrada-date-block{flex-direction:row;gap:6px;align-items:center}
  .entrada-badge{display:none}
  .footer{padding:32px 24px;flex-direction:column;align-items:flex-start}
}