/* BIU-Webservice — estilos principales */
:root{
  --bg:#0b132b;
  --bg-2:#1c2541;
  --paper:#ffffff;
  --text:#1a1a1a;
  --muted:#6b7280;
  --primary:#2d8cff;
  --primary-600:#1e6dd1;
  --accent:#22c55e;
  --ring:rgba(45,140,255,.35);
  --radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0; font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji"; color:var(--text); background:#f7f8fb}
img{max-width:100%; height:auto; display:block}
a{color:var(--primary); text-decoration:none}
a:hover{color:var(--primary-600)}
.container{max-width:1160px; margin:0 auto; padding:0 20px}

/* Botones */
.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: background 0.3s ease, color 0.3s ease;
}
.btn:hover {
  background: var(--primary-600);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  font-weight: 600;
  transition: background 0.3s ease, color 0.3s ease;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.badge{display:inline-block; padding:6px 10px; border-radius:999px; background:#e6f0ff; color:#0b48a8; font-weight:600; font-size:12px}
.card{background:var(--paper); border-radius:var(--radius); box-shadow:var(--shadow)}
.grid{display:grid; gap:20px}
.sr-only{position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0}

/* Header/nav */
header.site-header{position:sticky; top:0; z-index:50; background:var(--bg); color:#fff; box-shadow:0 2px 10px rgba(0,0,0,.15)}
.nav{display:flex; align-items:center; justify-content:space-between; height:64px}
.brand{display:flex; align-items:center; gap:12px}
.brand img{
  max-height:60px; /* ocupa casi toda la cabecera */
  height:auto;
  width:auto;      /* mantiene proporciones originales */
}
.brand span{font-weight:800; letter-spacing:.2px}

nav.primary{display:flex; align-items:center; gap:10px}
.menu{display:flex; align-items:center; gap:6px; list-style:none; margin:0; padding:0}
.menu > li{position:relative}
.menu > li > a, .menu > li > button{color:#e5e7eb; padding:10px 12px; border-radius:10px; display:inline-flex; align-items:center; gap:6px; font-weight:600}
.menu > li > a:hover, .menu > li > button:hover{background:rgba(255,255,255,.08)}

/* Dropdown */
.dropdown{position:relative}
.dropdown > button{background:transparent; border:0; cursor:pointer; font:inherit; color:#e5e7eb}
.dropdown-menu{position:absolute; top:100%; left:0; min-width:240px; background:#0f1a3a; border:1px solid rgba(255,255,255,.08); border-radius:12px; padding:8px; display:none}
.dropdown:hover .dropdown-menu{display:block}
.dropdown-menu a{display:flex; gap:8px; padding:10px; color:#dbeafe; border-radius:8px}
.dropdown-menu a:hover{background:rgba(255,255,255,.06)}

/* Mobile nav */
.hamburger{display:none; background:#13203f; color:#fff; border:0; border-radius:10px; padding:10px 12px}
@media (max-width: 980px){
  .menu{display:none}
  .hamburger{display:inline-flex}
  nav.primary.open .menu{display:flex; position:absolute; top:64px; left:0; right:0; flex-direction:column; background:#0f1a3a; padding:10px}
  nav.primary.open .menu a, nav.primary.open .menu button{padding:14px 12px}
  .dropdown:hover .dropdown-menu{display:none}
  nav.primary.open .dropdown-menu{position:static; display:flex; flex-direction:column; background:transparent; border:0; padding:0}
}

/* === Hero como fondo full-width === */
.hero {
  position: relative;
  min-height: 35vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  background: url("../images/hero-rymdesign.webp") no-repeat center center/cover;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}
.hero h1{font-size:clamp(24px, 2.8vw, 38px); line-height:1.2; margin:0 0 12px}
.hero p{color:#f1f5f9; margin:0 0 20px}
/* Botones centrados en hero */
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Secciones */
section{padding:56px 0}
.section-title{font-size:clamp(22px, 2.4vw, 34px); margin:0 0 6px}
.section-sub{color:var(--muted); margin:0 0 24px}

.services-grid{grid-template-columns:repeat(3, 1fr)}
@media (max-width:980px){.services-grid{grid-template-columns:1fr}}
.service{padding:18px; text-align:center}
.service h3{margin:6px 0 8px}
.service p{margin:0}

.features{grid-template-columns:repeat(3,1fr)}
@media (max-width:980px){.features{grid-template-columns:1fr}}
.feature{padding:20px; text-align:center}
.feature h3{margin:0 0 8px}

.testimonials{grid-template-columns:repeat(3,1fr)}
@media (max-width:980px){.testimonials{grid-template-columns:1fr}}
.quote{padding:20px; border:1px solid #eef2f7; text-align:center}
.quote p{margin:0 0 12px}
.author{margin-top:10px; font-weight:700}
.role{color:var(--muted); font-size:14px}

/* Thumbnails en testimonios */
.testimonial-thumb {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 12px;
  margin-left: auto;
  margin-right: auto;
  display: block;
}

/* FAQ */
.faq{grid-template-columns:1fr 1fr}
@media (max-width:980px){.faq{grid-template-columns:1fr}}
details{background:#fff; border-radius:14px; padding:12px 14px; border:1px solid #eef2f7}
details + details{margin-top:10px}
summary{cursor:pointer; font-weight:700}

/* Vídeos */
.videos{grid-template-columns:repeat(3,1fr)}
@media (max-width:980px){.videos{grid-template-columns:1fr}}
.video-card{position:relative; overflow:hidden; border-radius:14px; background:#000}
.video-thumb{aspect-ratio:16/9; background:#000; display:block}
.play-btn{position:absolute; inset:auto auto 12px 12px; background:rgba(255,255,255,.92); border:0; border-radius:999px; padding:10px 14px; font-weight:800; cursor:pointer}

/* Contacto */
form.contact{display:grid; gap:10px}
.field{display:grid; gap:6px}
.field input, .field textarea{padding:12px 14px; border:1px solid #e6eaf0; border-radius:12px; font:inherit}
.field input:focus, .field textarea:focus{outline:3px solid var(--ring); border-color:var(--primary)}

/* Footer */
footer.site-footer{background:var(--bg); color:#cbd5e1; padding:28px 0}
.footer-top{display:grid; gap:20px; grid-template-columns:2fr 1fr}
@media (max-width:980px){.footer-top{grid-template-columns:1fr}}
.footer-top a{color:#e2e8f0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12); margin-top:16px; padding-top:16px; font-size:14px; color:#94a3b8}

/* Botón scroll-up */
.scroll-up{position:fixed; right:20px; bottom:90px; width:48px; height:48px; line-height:48px; text-align:center; border-radius:50%; background:var(--accent); color:#fff; font-weight:900; box-shadow:var(--shadow); opacity:.9; cursor:pointer; display:none}
.scroll-up.show{display:block}

/* WhatsApp floating button */
.whatsapp-float{
  position:fixed; right:20px; bottom:20px;
  width:56px; height:56px; display:flex; align-items:center; justify-content:center;
  background:#25d366; color:#fff; border-radius:50%; box-shadow:0 8px 20px rgba(0,0,0,.2);
  font-size:26px; text-decoration:none; z-index:1000;
}
.whatsapp-float:hover{ background:#1ebe5d; color:#fff;}

/* Iconos en tarjetas */
.card.service i,
.card.feature i {
  color: #2d8cff;
  margin-bottom: 8px;
  display: block;
}
#lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}
.lightbox-content {
  position: relative;
  max-width: 960px;
  width: 90%;
  aspect-ratio: 16/9;
  background: #000;
}
.lightbox-content iframe {
  width: 100%;
  height: 100%;
  border: 0;
}
.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  font-size: 32px;
  color: #fff;
  cursor: pointer;
}

/* Botón Play centrado en la miniatura */
.video-card {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  background: #000;
}
.video-card img.video-thumb {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
}
.video-card .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 50%;
  width: 64px;
  height: 64px;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0b132b;
  box-shadow: 0 6px 18px rgba(0,0,0,.3);
  transition: transform .3s ease, background .3s ease, color .3s ease;
}
.video-card .play-btn:hover {
  background: #2d8cff;
  color: #fff;
  transform: translate(-50%, -50%) scale(1.1);
}

/* Efecto "pulse" */
.video-card .play-btn::after {
  content: "";
  position: absolute;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(45,140,255,.3);
  animation: pulse 1.5s infinite;
  z-index: -1;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.8); opacity: 0; }
}
/* Resalta la página activa del menú */
.menu > li > a.active {
  background: rgba(255,255,255,.08);
}