:root{
  --fondo: #0F172A;
  --primario: #38BDF8;
  --secundario: #F8FAFC;
  --acento: #22D3EE;
  --texto: #E2E8F0;
  --card-bg: rgba(56,189,248,0.06);
  --glass: rgba(255,255,255,0.03);
}


*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--fondo);
  color:var(--texto);
  font-family: Inter, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}


.top-nav{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1200;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(15,23,42,0.75), rgba(15,23,42,0.55));
  border-bottom: 1px solid rgba(56,189,248,0.06);
  transition: transform 300ms ease, box-shadow 300ms ease;
  transform: translateY(0);
}
.top-nav.hidden{
  transform: translateY(-110%);
}

.nav-inner{
  max-width:1100px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:1rem;
  padding:0.85rem 1rem;
  justify-content:space-between;
}

.brand{
  color:var(--primario);
  font-weight:700;
  font-size:1.25rem;
  letter-spacing:0.4px;
}


.nav-links ul{
  list-style:none;
  display:flex;
  gap:1rem;
  align-items:center;
}
.nav-links a{
  color:var(--texto);
  text-decoration:none;
  padding:0.45rem 0.6rem;
  border-radius:8px;
  font-weight:600;
  transition:background 180ms, color 180ms, transform 180ms;
}
.nav-links a:hover{ color: var(--acento); transform: translateY(-2px); }
.nav-links a.active{
  background: linear-gradient(90deg, rgba(56,189,248,0.08), rgba(34,211,238,0.06));
  border:1px solid rgba(56,189,248,0.08);
  color:var(--primario);
}


.menu-btn{
  display:none;
  width:44px;height:40px;
  border-radius:8px;
  border:none;
  background:transparent;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  padding:6px;
}
.menu-btn .bar{ display:block; width:22px; height:2px; background:var(--texto); margin:4px 0; border-radius:2px; transition: transform 300ms, opacity 200ms; }
.menu-btn.open .bar1{ transform: translateY(7px) rotate(45deg); }
.menu-btn.open .bar2{ opacity:0; transform:scale(0.2); }
.menu-btn.open .bar3{ transform: translateY(-7px) rotate(-45deg); }


.page-wrapper{ padding-top:76px; max-width:1100px; margin:0 auto; }


.section{ padding:3rem 1rem; }
.hero{ text-align:center; padding-top:2.5rem; }
.hero h1{ color:var(--primario); font-size:2rem; margin-bottom:0.6rem; }
.section h2{ color:var(--primario); margin-bottom:0.6rem; font-size:1.4rem; text-align:center; }
.section p{ max-width:900px; margin:0.45rem auto 1.1rem; color:var(--texto); }
.muted{ color: rgba(226,232,240,0.7); font-size:0.95rem; }


.integrantes{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:1rem;
  margin-top:1rem;
}
.team-card{
  position:relative;
  overflow:hidden;
  border-radius:12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border:1px solid rgba(255,255,255,0.03);
  text-align:center;
  min-height:200px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
}
.team-card img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover; filter:grayscale(10%); transform:scale(1.02);
}
.team-info{ position:relative; padding:12px 10px; background: linear-gradient(180deg, rgba(15,23,42,0.6), rgba(15,23,42,0.75)); }
.team-info h4{ margin:0; color:var(--secundario); font-size:1rem; font-weight:700; }


.overlay{
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(2,6,23,0.55), rgba(34,211,238,0.06));
  color:var(--secundario);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px;
  text-align:center;
  transform: translateY(100%);
  transition: transform 280ms ease, opacity 280ms;
  opacity:0;
  font-size:0.95rem;
}
.team-card:hover .overlay,
.team-card.active .overlay{
  transform: translateY(0);
  opacity:1;
}


.materiales{ display:flex; flex-wrap:wrap; gap:0.6rem; justify-content:center; list-style:none; margin-top:0.8rem; }
.materiales li{
  background:var(--glass); border:1px solid rgba(255,255,255,0.03);
  padding:0.45rem 0.9rem; border-radius:999px; font-weight:600; color:var(--texto);
}


.galeria{
  margin-top:1rem;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1rem;
}
.galeria img, .galeria video, .galeria iframe{ width:100%; border-radius:10px; display:block; border:1px solid rgba(255,255,255,0.03); }


.video-container{ display:flex; justify-content:center; margin-top:1rem; }
.video-container iframe{ width:100%; max-width:820px; height:460px; border-radius:10px; }


.uploader{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; justify-content:center; margin:1rem 0; }
.btn{ background:linear-gradient(90deg,var(--primario),var(--acento)); color:var(--fondo); padding:0.6rem 0.9rem; border-radius:8px; cursor:pointer; border:none; font-weight:700; }
.btn.secondary{ background:transparent; color:var(--texto); border:1px solid rgba(255,255,255,0.04); }
.btn.danger{ background:transparent; color:#ff7b7b; border:1px solid rgba(255,95,95,0.12); }
.preview-area{ display:grid; grid-template-columns:repeat(auto-fit,minmax(120px,1fr)); gap:8px; margin-top:1rem; }


.preview-item{ position:relative; overflow:hidden; border-radius:8px; border:1px solid rgba(255,255,255,0.02); background:rgba(255,255,255,0.01); cursor:pointer; }
.preview-item img, .preview-item video{ width:100%; height:120px; object-fit:cover; display:block; }
.preview-item .check{ position:absolute; top:6px; right:6px; background:var(--primario); color:var(--fondo); padding:4px 6px; border-radius:6px; font-weight:700; opacity:0.95; }


.plan-cards{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1rem; margin-top:1rem; }
.card{ padding:1.2rem; background:var(--card-bg); border-radius:10px; border:1px solid rgba(255,255,255,0.02); }


.contact-form{ max-width:520px; margin:1rem auto 0; display:flex; flex-direction:column; gap:0.8rem; }
.contact-form input, .contact-form textarea{
  background: rgba(255,255,255,0.02);
  border:1px solid rgba(255,255,255,0.04);
  color:var(--texto);
  padding:0.75rem; border-radius:8px; outline:none; font-size:0.95rem;
}
.contact-form textarea{ min-height:120px; resize:vertical; }
.contact-form button{
  background:linear-gradient(90deg,var(--primario),var(--acento));
  border:none; color:var(--fondo); padding:0.75rem 1rem; border-radius:10px; font-weight:700; cursor:pointer;
}


.stars{ display:flex; gap:6px; }
.star{ background:transparent; border:none; color:rgba(226,232,240,0.4); font-size:1.6rem; cursor:pointer; }
.star.active{ color: var(--primario); transform: scale(1.05); }

.comentarios-list{ max-width:720px; margin:1rem auto; display:flex; flex-direction:column; gap:0.8rem; }
.comentario{ background: rgba(255,255,255,0.02); padding:0.9rem; border-radius:8px; border:1px solid rgba(255,255,255,0.02); }


.site-footer{ margin-top:2.5rem; padding:1rem; text-align:center; color:var(--texto); border-top:1px solid rgba(56,189,248,0.04); background:transparent; }


@media (max-width: 900px){
  .video-container iframe{ height:360px; }
  .nav-inner{ padding:0.6rem 0.9rem; }
}
@media (max-width: 760px){
  .nav-links{ position:fixed; top:64px; right:12px; left:12px; background: linear-gradient(180deg, rgba(15,23,42,0.98), rgba(10,14,24,0.98)); border-radius:12px; padding:12px; display:none; box-shadow:0 12px 40px rgba(2,6,23,0.6); }
  .nav-links.open{ display:block; }
  .nav-links ul{ flex-direction:column; gap:8px; }
  .menu-btn{ display:flex; }
  .page-wrapper{ padding-top:86px; }
  .video-container iframe{ height:220px; }
  .preview-item img, .preview-item video{ height:100px; }
}
@media (max-width:420px){
  .hero h1{ font-size:1.6rem; }
  .brand{ font-size:1.05rem; }
}
.galeria{
  margin-top:1rem;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1rem;
}
.galeria img,
.galeria video,
.galeria iframe{
  width:100%;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.03);
}

section img,
section video{
  width:80%;
  max-width:900px;
  border-radius:16px;
  object-fit:cover;
  opacity:0.92;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border:1px solid rgba(255,255,255,0.05);
}

section img:hover,
section video:hover{
  transform:scale(1.02);
  opacity:1;
}
.imagenes img{
  width: 300px;
  height: 300px;
  flex-shrink: 0;
}
.boton{
  position: absolute;
  top: 50%;
  font-size: 20px;
}
.izquierda{left: 10px;}
.derecha{right: 10px;}
.imagenes{
  display: flex;
  overflow: hidden;
}
.contenedor{
  width: 300px;
  margin: auto;
  position: relative;
}