/* =====================================================================
   Red de monitoreo acústico de mamíferos voladores de Colombia
   Hoja de estilos compartida — editar aquí afecta a TODO el sitio.
   Paleta: noche / ultrasonido.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600&family=Space+Mono:wght@400;700&display=swap');

:root{
  /* Color */
  --noche:      #0B1026;
  --noche-2:    #141B3C;
  --panel:      #171F45;
  --panel-alto: #1E2856;
  --eco:        #43D6C9;  /* cian sonar */
  --eco-tenue:  #2A9d95;
  --pulso:      #F2B441;  /* ámbar comunidad */
  --niebla:     #E8ECF5;
  --tenue:      #8A93B2;
  --linea:      rgba(232,236,245,.10);

  /* Tipografía */
  --display: 'Fraunces', Georgia, serif;
  --cuerpo:  'Inter', system-ui, sans-serif;
  --mono:    'Space Mono', ui-monospace, monospace;

  /* Escala y ritmo */
  --contenedor: 1120px;
  --radio: 16px;
  --radio-sm: 10px;
}

*{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:
    url("../assets/img/patron-murcielagos.svg") repeat,
    radial-gradient(1200px 600px at 78% -10%, rgba(67,214,201,.10), transparent 60%),
    radial-gradient(900px 500px at 10% 0%, rgba(242,180,65,.07), transparent 55%),
    var(--noche);
  color:var(--niebla);
  font-family:var(--cuerpo);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.contenedor{
  width:100%;
  max-width:var(--contenedor);
  margin:0 auto;
  padding:0 24px;
}

/* --------------------------- Tipografía --------------------------- */
h1,h2,h3{ font-family:var(--display); font-weight:600; line-height:1.12; margin:0 0 .4em; }
h1{ font-size:clamp(2.3rem, 5vw, 3.9rem); letter-spacing:-.5px; }
h2{ font-size:clamp(1.7rem, 3.2vw, 2.5rem); letter-spacing:-.3px; }
h3{ font-size:1.25rem; }
p{ margin:0 0 1rem; color:#D5DBEC; }
a{ color:var(--eco); text-decoration:none; }
a:hover{ text-decoration:underline; }

.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--eco);
  margin:0 0 .9rem;
  display:inline-block;
}
.plomo{ color:var(--tenue); }
.destacar{ color:var(--pulso); }

/* --------------------------- Encabezado --------------------------- */
.sitio-header{
  position:sticky; top:0; z-index:50;
  backdrop-filter:blur(10px);
  background:rgba(11,16,38,.72);
  border-bottom:1px solid var(--linea);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  gap:20px; padding:14px 0;
}
.marca{ display:flex; align-items:center; gap:12px; text-decoration:none; }
.marca:hover{ text-decoration:none; }
.marca-glifo{ flex:0 0 auto; }
.marca-texto{ display:flex; flex-direction:column; line-height:1.1; }
.marca-texto b{ font-family:var(--display); font-weight:600; color:var(--niebla); font-size:1.02rem; }
.marca-texto span{ font-family:var(--mono); font-size:.62rem; letter-spacing:.18em; color:var(--tenue); text-transform:uppercase; }

.menu{ display:flex; gap:6px; align-items:center; list-style:none; margin:0; padding:0; }
.menu a{
  color:#C7CEE4; text-decoration:none; font-size:.92rem; font-weight:500;
  padding:8px 12px; border-radius:8px; transition:background .18s, color .18s;
}
.menu a:hover{ background:var(--panel); color:var(--niebla); }
.menu a.activo{ color:var(--noche); background:var(--eco); }

.menu-boton{
  display:none; background:transparent; border:1px solid var(--linea);
  color:var(--niebla); border-radius:8px; padding:8px 10px; cursor:pointer;
}

.marca-logo{ height:54px; width:auto; display:block; }

/* --------------------------- Sección de logos por categoría --------------------------- */
.grupo-logos{ margin-bottom:46px; }
.grupo-logos:last-child{ margin-bottom:0; }
.grupo-etq{ display:flex; align-items:center; gap:16px; margin-bottom:20px; }
.grupo-etq h3{
  margin:0; font-family:var(--mono); font-weight:700; font-size:.8rem;
  letter-spacing:.24em; text-transform:uppercase; color:var(--eco); white-space:nowrap;
}
.grupo-etq::after{ content:""; flex:1 1 auto; height:1px; background:var(--linea); }

.logos-rejilla{
  display:grid; gap:16px;
  grid-template-columns:repeat(auto-fill, minmax(170px, 1fr));
}
/* Grupos pequeños (Financia, Ejecuta…): centrados y sin estirarse de más */
.logos-rejilla.compacta{ grid-template-columns:repeat(auto-fit, minmax(190px, 220px)); justify-content:start; }

.logo-card{
  background:#fff; border-radius:14px; padding:22px;
  display:flex; align-items:center; justify-content:center;
  aspect-ratio:3/2; border:1px solid var(--linea);
  transition:transform .2s, box-shadow .2s;
}
.logo-card:hover{ transform:translateY(-3px); box-shadow:0 12px 34px rgba(0,0,0,.4); }
.logo-card img{ max-width:100%; max-height:82px; width:auto; height:auto; object-fit:contain; }

/* --------------------------- Hero --------------------------- */
.hero{ position:relative; padding:72px 0 56px; overflow:hidden; }
.hero-onda{ position:absolute; inset:0; width:100%; height:100%; z-index:0; opacity:.55; }
.hero .contenedor{ position:relative; z-index:1; }
.hero h1{ max-width:16ch; }
.hero p.intro{ max-width:52ch; font-size:1.12rem; color:#D9DFEE; }

.botones{ display:flex; flex-wrap:wrap; gap:14px; margin-top:26px; }
.btn{
  display:inline-flex; align-items:center; gap:9px;
  font-weight:600; font-size:.95rem; padding:12px 22px;
  border-radius:999px; cursor:pointer; transition:transform .15s, box-shadow .2s, background .2s;
  border:1px solid transparent;
}
.btn-primario{ background:var(--eco); color:#04201d; box-shadow:0 8px 30px rgba(67,214,201,.25); }
.btn-primario:hover{ transform:translateY(-2px); text-decoration:none; }
.btn-fantasma{ background:transparent; color:var(--niebla); border-color:var(--linea); }
.btn-fantasma:hover{ border-color:var(--eco); color:var(--eco); text-decoration:none; }

/* --------------------------- Secciones --------------------------- */
.seccion{ padding:64px 0; }
.seccion-cabecera{ max-width:60ch; margin-bottom:38px; }

.rejilla{ display:grid; gap:22px; }
.rejilla.cols-2{ grid-template-columns:repeat(2,1fr); }
.rejilla.cols-3{ grid-template-columns:repeat(3,1fr); }
.rejilla.cols-4{ grid-template-columns:repeat(4,1fr); }

/* --------------------------- Tarjetas --------------------------- */
.tarjeta{
  background:linear-gradient(180deg, var(--panel), var(--noche-2));
  border:1px solid var(--linea);
  border-radius:var(--radio);
  padding:26px;
  transition:border-color .2s, transform .2s;
}
.tarjeta:hover{ border-color:rgba(67,214,201,.4); transform:translateY(-3px); }
.tarjeta .num{ font-family:var(--mono); color:var(--pulso); font-size:.8rem; letter-spacing:.1em; }
.tarjeta h3{ margin-top:10px; }
.tarjeta p{ font-size:.95rem; color:#C7CEE4; margin-bottom:0; }

/* --------------------------- Media --------------------------- */
.media{
  position:relative; border-radius:var(--radio); overflow:hidden;
  border:1px solid var(--linea); background:var(--noche-2);
}
.media video, .media img{ display:block; width:100%; height:100%; object-fit:cover; }
.media figcaption, .pie-media{
  font-family:var(--mono); font-size:.74rem; color:var(--tenue);
  padding:12px 14px; display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap;
}

/* Marco de reemplazo para media aún no cargado */
.placeholder{
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px; aspect-ratio:16/9; text-align:center; padding:24px;
  color:var(--tenue); font-family:var(--mono); font-size:.8rem;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0 12px, transparent 12px 24px),
    var(--noche-2);
}
.placeholder .p-etq{ color:var(--eco); letter-spacing:.15em; text-transform:uppercase; font-size:.68rem; }
.placeholder code{ color:var(--pulso); background:rgba(242,180,65,.08); padding:2px 7px; border-radius:5px; }

/* Galería fotográfica */
.galeria{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.galeria.comunidad{ grid-template-columns:repeat(auto-fill, minmax(230px,1fr)); }
.galeria .foto{ border-radius:12px; overflow:hidden; border:1px solid var(--linea); aspect-ratio:4/3; }
.galeria.comunidad .foto{ aspect-ratio:3/4; }
.galeria .foto img{ width:100%; height:100%; object-fit:cover; transition:transform .4s; }
.galeria .foto:hover img{ transform:scale(1.05); }

/* Reproductor de audio */
.pista{
  display:flex; align-items:center; gap:16px;
  background:var(--panel); border:1px solid var(--linea);
  border-radius:var(--radio-sm); padding:16px 18px; margin-bottom:14px;
}
.pista-info{ flex:1 1 auto; min-width:0; }
.pista-info b{ display:block; font-family:var(--display); font-weight:600; }
.pista-info span{ font-family:var(--mono); font-size:.72rem; color:var(--tenue); }
.pista audio{ width:100%; max-width:360px; height:38px; }
.chip{
  font-family:var(--mono); font-size:.68rem; color:var(--eco);
  border:1px solid rgba(67,214,201,.35); border-radius:999px; padding:3px 10px; white-space:nowrap;
}

/* Datos / cifras */
.cifras{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.cifra b{ font-family:var(--display); font-size:2.4rem; color:var(--eco); display:block; line-height:1; }
.cifra span{ font-family:var(--mono); font-size:.72rem; color:var(--tenue); letter-spacing:.08em; text-transform:uppercase; }

/* --------------------------- Marquesina (footer) --------------------------- */
.sitio-footer{ margin-top:auto; border-top:1px solid var(--linea); background:var(--noche-2); }
.footer-titulo{
  text-align:center; font-family:var(--mono); font-size:.72rem; letter-spacing:.24em;
  text-transform:uppercase; color:var(--tenue); padding:26px 0 4px;
}
.marquesina{
  --vel:38s;
  background:#fff;
  position:relative; overflow:hidden; padding:22px 0; -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.marquesina-pista{
  display:flex; width:max-content; gap:64px; align-items:center;
  animation:desplazar var(--vel) linear infinite;
}
.marquesina:hover .marquesina-pista{ animation-play-state:paused; }
.marquesina-pista .logo{
  height:100px; flex:0 0 auto; display:flex; align-items:center; justify-content:center;
  background:#fff; border-radius:8px; padding:12px 20px;
  opacity:.92; transition:opacity .25s, transform .25s;
}
.marquesina-pista .logo:hover{ opacity:1; transform:translateY(-2px); }
.marquesina-pista .logo img{ max-height:100%; width:auto; object-fit:contain; }

@keyframes desplazar{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }  /* mitad = una copia completa → bucle sin salto */
}

.footer-legal{
  border-top:1px solid var(--linea);
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; align-items:center;
  padding:20px 0; font-size:.82rem; color:var(--tenue);
}
.footer-legal .mono{ font-family:var(--mono); font-size:.72rem; }

/* --------------------------- Utilidades --------------------------- */
.centro{ text-align:center; }
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.separador{ height:1px; background:var(--linea); border:0; margin:0; }

/* --------------------------- Responsive --------------------------- */
@media (max-width:900px){
  .rejilla.cols-3,.rejilla.cols-4{ grid-template-columns:repeat(2,1fr); }
  .cifras{ grid-template-columns:repeat(2,1fr); }
  .galeria{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:680px){
  body{ font-size:16px; }
  .marca-logo{ height:42px; }
  .menu{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:2px;
    background:var(--noche); border-bottom:1px solid var(--linea);
    padding:10px 16px 16px; display:none;
  }
  .menu.abierto{ display:flex; }
  .menu-boton{ display:inline-flex; }
  .rejilla.cols-2,.rejilla.cols-3,.rejilla.cols-4{ grid-template-columns:1fr; }
  .galeria{ grid-template-columns:repeat(2,1fr); }
  .pista{ flex-wrap:wrap; }
}

/* Accesibilidad */
:focus-visible{ outline:2px solid var(--eco); outline-offset:2px; border-radius:4px; }
@media (prefers-reduced-motion:reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; scroll-behavior:auto; }
  .marquesina-pista{ animation:none; }
}

/* ============================================================
   SECCIONES CLARAS — contraste (añade la clase "claro" a un <section>)
   ============================================================ */
.seccion.claro{ background:#ffffff; color:#1b2444; }
.claro h1,.claro h2,.claro h3{ color:#141b3c; }
.claro p{ color:#3a4364; }
.claro .eyebrow{ color:#15756d; }
.claro .plomo,.claro .cifra span,.claro .pie-media,.claro figcaption{ color:#6a739a; }
.claro .destacar{ color:#b07d0f; }
.claro .separador{ background:rgba(20,27,60,.12); }
.claro .tarjeta{ background:#f5f8fc; border-color:#e4e9f3; }
.claro .tarjeta:hover{ border-color:#15756d; }
.claro .tarjeta p{ color:#48506f; }
.claro .tarjeta .num{ color:#b07d0f; }
.claro .cifra b{ color:#15756d; }
.claro a{ color:#147d75; }
.claro .btn-fantasma{ color:#141b3c; border-color:rgba(20,27,60,.22); }
.claro .btn-fantasma:hover{ border-color:#15756d; color:#147d75; }
.claro code{ color:#b07d0f; background:rgba(176,125,15,.10); }

/* Pie de foto en la galería (overlay con degradado) */
.galeria .foto{ position:relative; }
.galeria .foto figcaption{
  position:absolute; left:0; right:0; bottom:0;
  padding:26px 14px 12px; z-index:2;
  font-size:.68rem; line-height:1.35; color:#fff;
  background:linear-gradient(to top, rgba(4,8,20,.82), rgba(4,8,20,.35) 55%, transparent);
}