/* VARIABLES */
:root{
  --azul: #002c6a;
  --azul-claro: #0066cc;
  --amarillo: #ffcc00;
  --fondo: #f4f6fa;
  --card: #ffffff;
  --texto: #1a1a1a;

  --sombra-suave: 0 4px 14px rgba(0,0,0,0.07);
  --sombra-media: 0 6px 22px rgba(0,0,0,0.10);
  --borde-suave: 1px solid rgba(0,0,0,0.06);
}

/* GLOBAL */
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family: 'Roboto Slab', serif;
  background:var(--fondo);
  color:var(--texto);
  line-height:1.45;
}

.container{
  width:94%;
  max-width:1150px;
  margin:auto;
}

img{max-width:100%;display:block}

/* ANIMACIONES SUTILES */
.fade-in{
  opacity:0;
  transform:translateY(12px);
  animation:fade .6s ease forwards;
}

@keyframes fade{
  to{opacity:1;transform:none;}
}

/* HEADER */
.header{
  background:linear-gradient(90deg,var(--azul),var(--azul-claro));
  color:white;
  box-shadow:var(--sombra-media);
  padding: 0px 20px
}

.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:22px 0;   /* antes 16px */
}


.logo{
  display:flex;
  align-items:center;
  gap:12px;
}

.logo img{
  height:58px;
  border-radius:8px;
  box-shadow:var(--sombra-suave);
}

.nav-list{
  display:flex;
  gap:18px;
  list-style:none;
  padding: 12px 0
}

.nav-list a{
  color:white;
  text-decoration:none;
  font-weight:500;
  padding:6px 0;
  transition:.2s;
}

.nav-list a:hover{
  opacity:.85;
}

.nav-list a.activo{
  border-bottom:3px solid var(--amarillo);
  padding-bottom:4px;
}

.btn-hamburger{
  display:none;
  background:none;
  border:0;
  color:white;
  font-size:30px;
  cursor:pointer;
}

/* HERO */
.hero{
  flex-direction: column;
  justify-content: center; 
  align-items: center;
  text-align: center;
  padding: 80px 20px;
  padding:60px 0;
  display:flex;
  gap:28px;
  align-items:center;
  background:radial-gradient(circle at top left,var(--azul-claro),var(--azul));
  color:white;
}

.hero-texto h1{
  font-family:"Fira Code",monospace;
  margin-bottom:12px;
  font-size:2.1rem;
}

.hero-texto .lead{
  font-weight:300;
  opacity:.9;
  margin-bottom:22px;
}

.hero-cta{
  display:flex;
  gap:14px;
}

.hero-panel{
  background:rgba(255,255,255,0.10);
  padding:22px;
  border-radius:14px;
  backdrop-filter:blur(4px);
  display:flex;
  flex-direction:column;
  gap:12px;
  box-shadow:0 8px 26px rgba(0,0,0,0.15);
}

.panel-item{
  background:rgba(255,255,255,0.08);
  padding:14px;
  border-radius:10px;
}

/* BOTONES */
.btn-principal{
  background:var(--amarillo);
  color:var(--azul);
  padding:12px 22px;
  border-radius:8px;
  font-weight:700;
  text-decoration:none;
  transition:.2s;
  box-shadow:var(--sombra-suave);
}

.btn-principal:hover{
  transform:translateY(-2px);
}

.btn-secundario{
  padding:12px 22px;
  border-radius:8px;
  text-decoration:none;
  color:white;
  border:2px solid rgba(255,255,255,0.5);
  transition:.2s;
}

.btn-secundario:hover{
  background:rgba(255,255,255,0.12);
}

/* SECCIONES */
.secciones{
  padding:50px 0;
  animation:fade .6s ease;
}

.grid-3{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:22px;
}

.card{
  background:var(--card);
  padding:22px;
  border-radius:14px;
  box-shadow:var(--sombra-suave);
  transition:.2s;
  border:var(--borde-suave);
}

.card:hover{
  transform:translateY(-5px);
  box-shadow:var(--sombra-media);
}

.card h3{
  color:var(--azul);
  margin-bottom:10px;
}

.bullets{
  list-style:none;
  margin-top:10px;
}

.bullets li{
  padding:6px 0;
  color:#444;
}

.bullets li a{
  text-decoration:none;
  color:var(--azul);
  font-weight:600;
}

/* NOTICIAS */
.noticias{
  padding:50px 0;
}

.post{
  background:white;
  padding:18px;
  border-radius:14px;
  box-shadow:var(--sombra-suave);
  border:var(--borde-suave);
  transition:.2s;
}

.post:hover{
  transform:translateY(-5px);
  box-shadow:var(--sombra-media);
}

.post a{
  color:var(--azul-claro);
  font-weight:600;
  text-decoration:none;
}

/* CONTACTO */
.contacto h2{
  margin-bottom:8px;
}

/* FOOTER */
footer{
  background:var(--azul);
  color:white;
  padding:24px 0;
  margin-top:40px;
  box-shadow:0 -4px 12px rgba(0,0,0,0.15);
}

/* CHATBOT */
.chat-button{
  position:fixed;
  right:24px;
  bottom:24px;
  background:var(--azul-claro);
  color:white;
  border:none;
  border-radius:50%;
  width:62px;
  height:62px;
  font-size:26px;
  cursor:pointer;
  box-shadow:var(--sombra-media);
  transition:.2s;
}

.chat-button:hover{
  transform:scale(1.08);
}

.chat-window{
  position:fixed;
  right:24px;
  bottom:105px;
  width:330px;
  background:white;
  border-radius:16px;
  box-shadow:0 10px 34px rgba(0,0,0,.22);
  display:none;
  flex-direction:column;
  overflow:hidden;
  border:var(--borde-suave);
  animation:fade .3s ease;
}

.chat-header{
  background:var(--azul);
  color:white;
  padding:12px 14px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-weight:600;
}

.chat-close{
  background:none;
  border:0;
  color:white;
  font-size:24px;
  cursor:pointer;
}

.chat-body{
  height:300px;
  overflow-y:auto;
  padding:14px;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.msg{
  padding:10px 14px;
  border-radius:12px;
  max-width:85%;
  line-height:1.4;
  font-size:.95rem;
}

.msg.bot{
  background:#e9eff8;
  align-self:flex-start;
  border:var(--borde-suave);
}

.msg.user{
  background:var(--azul-claro);
  color:white;
  align-self:flex-end;
}

.chat-input-area{
  display:flex;
  border-top:var(--borde-suave);
}

.chat-input-area input{
  flex:1;
  padding:12px;
  border:none;
  outline:none;
}

.chat-input-area button{
  padding:12px 20px;
  border:none;
  background:var(--azul);
  color:white;
  cursor:pointer;
}

/* RESPONSIVE */
@media(max-width:900px){
  .nav-list{display:none}
  .btn-hamburger{display:block}
  .hero{flex-direction:column;text-align:center}
  .hero-panel{width:100%}
}
/* TARJETAS DE ÁREAS */
.area-card{
  background:var(--card);
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--sombra-suave);
  border:var(--borde-suave);
  transition:.25s ease;
  display:flex;
  flex-direction:column;
}

.area-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--sombra-media);
}

.area-img img{
  width:100%;
  height:180px;
  object-fit:cover;
}

.area-info{
  padding:18px;
}

.area-info h3{
  color:var(--azul);
  margin-bottom:8px;
  font-size:1.25rem;
}

.area-info p{
  color:#555;
  font-size:.95rem;
  margin-bottom:14px;
}

.btn-area{
  display:inline-block;
  background:var(--azul-claro);
  color:white;
  padding:10px 16px;
  border-radius:8px;
  text-decoration:none;
  font-weight:600;
  transition:.2s;
}

.btn-area:hover{
  background:var(--azul);
}
/* ==== MENU DESPLEGABLE (USANDO TU MISMO NAV Y UL) ==== */

.nav-list li {
  position: relative;
}

/* SUBMENÚ */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;

  background: white;
  list-style: none;
  padding: 0;
  margin: 0;

  min-width: 180px;
  border-radius: 10px;

  box-shadow: 0 6px 20px rgba(0,0,0,.15);
  border: 1px solid rgba(0,0,0,0.06);

  z-index: 20;
}

/* Mostrar al pasar el mouse */
.dropdown:hover .dropdown-menu {
  display: block;
}

/* Items del submenú */
.dropdown-menu li a {
  display: block;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--texto);
  font-weight: 500;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

/* Último item sin borde */
.dropdown-menu li:last-child a {
  border-bottom: none;
}

/* Hover del submenú */
.dropdown-menu li a:hover {
  background: var(--azul-claro);
  color: white;
}

/* Flecha ▾ */
.dropdown > a {
  cursor: pointer;
}

/* Hover del botón principal */
.dropdown > a:hover {
  opacity: .85;
}
/* ========================================================= */
/*      ESTILO UNIVERSIDAD CATÓLICA / TRADICIONAL           */
/* ========================================================= */

.titulo-seccion{
  text-align:center;
  font-size:2rem;
  margin-bottom:40px;
  color:var(--azul);
  font-weight:600;
  border-bottom:3px solid var(--amarillo);
  display:inline-block;
  padding-bottom:6px;
}

/* ========== ÁREAS DE ESTUDIO ========== */

.areas-section{
  background:white;
  padding:70px 0;
}

.areas-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:30px;
}

/* Tarjeta completa clickeable */
.area-card-uni{
  display:block;                /* hace que toda la tarjeta sea clickeable */
  text-decoration:none;         /* sin subrayados */
  border:1px solid rgba(0,0,0,0.08);
  border-radius:10px;
  overflow:hidden;
  background:white;
  box-shadow:0 4px 14px rgba(0,0,0,0.06);
  transition:.25s ease;
  color:inherit;                /* mantiene colores del texto */
}

.area-card-uni:hover{
  transform:translateY(-4px);
  box-shadow:0 8px 24px rgba(0,0,0,0.10);
}

.area-img-uni img{
  width:100%;
  height:180px;
  object-fit:cover;
}

.area-content-uni{
  padding:20px;
}

.area-content-uni h3{
  font-size:1.3rem;
  color:var(--azul);
  margin-bottom:8px;
  font-weight:600;
}

.area-content-uni p{
  font-size:.95rem;
  color:#555;
  margin-bottom:5px;
}


/* ========== NOVEDADES INSTITUCIONALES ========== */

.novedades-section{
  background:#f7f8fb;
  padding:70px 0;
}

.novedades-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:30px;
}

.novedad-card{
  background:white;
  border-radius:8px;
  padding:22px;
  border:1px solid rgba(0,0,0,0.08);
  box-shadow:0 4px 14px rgba(0,0,0,0.05);
  transition:.25s ease;
}

.novedad-card:hover{
  transform:translateY(-6px);
  box-shadow:0 10px 30px rgba(0,0,0,0.12);
}

.novedad-fecha{
  font-size:.85rem;
  color:var(--azul-claro);
  font-weight:600;
}

.novedad-card h4{
  margin:10px 0;
  font-size:1.2rem;
  color:var(--azul);
}

.novedad-card p{
  color:#555;
  font-size:.95rem;
  margin-bottom:16px;
}

.link-uni{
  text-decoration:none;
  color:var(--azul-claro);
  font-weight:600;
  transition:.2s;
}

.link-uni:hover{
  color:var(--azul);
}
/* ==== DROPDOWN GENERAL (sirve para Nosotros también) ==== */

.nav-list li {
  position: relative;
}

/* SUBMENÚ */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;

  background: white;
  list-style: none;
  padding: 0;
  margin: 0;

  min-width: 180px;
  border-radius: 10px;

  box-shadow: 0 6px 20px rgba(0,0,0,.15);
  border: 1px solid rgba(0,0,0,0.06);

  z-index: 20;
}

/* Mostrar al pasar el mouse */
.dropdown:hover .dropdown-menu {
  display: block;
}

/* Items del submenú */
.dropdown-menu li a {
  display: block;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--texto);
  font-weight: 500;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

/* Sacar borde al último */
.dropdown-menu li:last-child a {
  border-bottom: none;
}

/* Hover del submenú */
.dropdown-menu li a:hover {
  background: var(--azul-claro);
  color: white;
}

/* Flecha o indicador */
.dropdown > a {
  cursor: pointer;
}

/* Hover del botón principal */
.dropdown > a:hover {
  opacity: .85;
}
/* Flecha solo para Nosotros */
.nosotros-menu > a::after {
  content: " ▾";
  font-size: 0.9em;
}
.nombre-instituto{
  color: white;
  text-decoration: none;
  font-size: 1.1rem;
  line-height: 1.1;
}

.nombre-instituto:hover{
  opacity: 0.85;
}