@media (max-width: 900px) {
  .menu ul {
    width: 85vw;
    max-width: 340px;
    min-width: 180px;
    left: auto;
    right: -100vw;
    padding: 60px 0 0 0;
    box-sizing: border-box;
  }
  .menu ul.open {
    right: 0;
  }
  .menu li {
    padding: 16px 18px;
    font-size: 1.1rem;
  }
}
/* ================= MENÚ RESPONSIVE ================= */
@media (max-width: 900px) {
  .menu ul {
    flex-direction: column;
    gap: 0;
    background: #fff;
    position: fixed;
    top: 0;
    right: -100vw;
    width: 70vw;
    max-width: 320px;
    height: 100vh;
    box-shadow: -2px 0 16px rgba(0,0,0,0.08);
    padding: 60px 0 0 0;
    margin: 0;
    z-index: 1200;
    transition: right 0.3s cubic-bezier(.7,.2,.3,1);
  }
  .menu ul.open {
    right: 0;
  }
  .menu li {
    margin: 0;
    border-bottom: 1px solid #eee;
    text-align: left;
    padding: 18px 24px;
  }
  .menu li:last-child {
    border-bottom: none;
  }
  .menu-toggle {
    display: block;
    position: absolute;
    top: 18px;
    right: 24px;
    background: none;
    border: none;
    font-size: 2rem;
    color: #002244;
    z-index: 1300;
    cursor: pointer;
  }
}

@media (min-width: 901px) {
  .menu-toggle {
    display: none;
  }
  .menu ul {
    display: flex !important;
    position: static;
    flex-direction: row;
    height: auto;
    box-shadow: none;
    background: none;
    padding: 0;
  }
}
/* ================= RESPONSIVE DESIGN ================= */
@media (max-width: 900px) {
  .hero-content.container {
    padding: 30px 10px;
    text-align: center;
  }
  .benefits-grid, .services-grid, .gallery {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .card-grid {
    gap: 12px;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }
  .hero-content.container {
    padding: 18px 4vw;
    text-align: center;
  }
  .empresa-title {
    font-size: 1.1rem;
    padding: 10px 0;
  }
  .custom-header {
    flex-direction: column;
    align-items: center;
    padding: 10px 0;
  }
  .logo-container {
    width: 80px;
    height: 80px;
  }
  .menu ul {
    flex-direction: column;
    gap: 8px;
    padding: 0;
  }
  .menu li {
    margin: 0;
  }
  .card-grid {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .tech-card {
    min-width: unset;
    width: 100%;
    font-size: 1.05rem;
    padding: 16px 0;
  }
  .benefits-grid, .services-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .benefit-card, .service-card {
    min-width: unset;
    width: 100%;
    font-size: 1rem;
    padding: 18px 10px;
  }
  .gallery {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .project-card {
    width: 100%;
    min-width: unset;
    margin: 0 auto;
  }
  .quiz-header h2 {
    font-size: 1.2rem;
  }
  .btn-cta, .btn-cta.slim {
    width: 100%;
    font-size: 1rem;
    padding: 14px 0;
  }
  .whatsapp-float {
    width: 48px;
    height: 48px;
    bottom: 12px;
    right: 12px;
  }
  .whats-icon {
    width: 24px;
    height: 24px;
  }
}
/* Botón flotante de WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25D366;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: transform 0.3s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

/* Ícono interno */
.whats-icon {
  width: 30px;
  height: 30px;
  object-fit: contain;
}
/* Contenedor de tarjetas */
.tecnologias {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.card-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

/* Tarjetas individuales */
.tech-card {
  background: linear-gradient(135deg, #002244, #0077cc);
  color: white;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  padding: 20px 30px;
  border-radius: 15px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  min-width: 120px;
  cursor: pointer;
}

/* Animación al pasar el mouse */
.tech-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 8px 18px rgba(0, 196, 255, 0.5);
}
/* ==========================================================================
   SEMAR – Hoja de estilos principal
   ========================================================================== */

/* ---------- VARIABLES DE MARCA ---------- */
:root{
  /* Colores corporativos */
  --brand-dark:       #0D1B2A;  /* fondo principal */
  --brand-electric:   #00A8E8;  /* acentos/enlaces */
  --brand-haze:       #F5F7FA;  /* texto sobre oscuro */
  --brand-lime:       #7CFC00;  /* CTAs / hover */

  /* Otros */
  --glass-bg:         rgba(255,255,255,0.20);  /* Header translúcido casi blanco */
  --glass-blur:       20px;
  --radius-xl:        1.5rem;
  --header-height:    88px;                   /* antes 72px */
  --transition:       all .3s ease;
  --header-bg: #FFFFFF;  /* fondo blanco pulcro */
}

.container{max-width:1280px;margin:0 auto;padding:0 1rem;}

/* ---------- RESET BÁSICO ---------- */
*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0;}
ul{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}

/* ---------- TIPOGRAFÍA GLOBAL ---------- */
body{
  font-family:'Roboto',sans-serif;
  background:linear-gradient(to bottom, #0D1B2A 0%, #182C40 30%, #304A66 70%, #495E79 100%);
  background-attachment:fixed; /* no toques nada más */
  color:var(--brand-haze);
  line-height:1.6;
  scroll-behavior:smooth;
  padding-top:var(--header-height);   /* evita que el header fijo tape el contenido */
}

h1,h2,h3,h4,h5{
  font-family:'Montserrat',sans-serif;
  font-weight:600;
  margin-bottom:.5em;
  line-height:1.2;
}

a{color:var(--brand-electric);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--brand-lime);}

/* ---------- ESTRUCTURA GENERAL ---------- */
.section{
  padding:6rem 1rem 4rem;
  max-width:1280px;
  margin:0 auto;
  text-align:center;
}

/* ---------- HEADER FIJO + NAV ---------- */
.main-header{
  position:fixed;
  top:0;left:0;width:100%;z-index:100;
  background:var(--header-bg); /* fondo blanco puro */
  backdrop-filter:none; /* sin translucencia */
  box-shadow:0 2px 8px rgba(0,0,0,.06); /* sombra ligera */
}

.container-header{
  height:var(--header-height);
  max-width:1280px;
  margin:0 auto;
  padding:0 1rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.logo{
  height:68px;          /* 40 % más grande */
  width:auto;
  position:relative;
  filter:none;
}

.logo::after{
  content:'';
  position:absolute;
  left:0;
  bottom:-8px;     /* bajamos 2px extra para el nuevo tamaño */
  width:100%;
  height:3px;      /* antes 2px → más visible */
  background:var(--brand-electric);
  border-radius:1px;
}

.navbar ul{display:flex;gap:1.5rem;}
.main-header .navbar a{ color:var(--brand-dark); }
.main-header .navbar a:hover{ color:var(--brand-electric); }
.navbar a{font-weight:500;}

/* Modo oscuro toggle */
.icon-btn{
  background:none;border:none;
  color:var(--brand-haze);
  font-size:1.3rem;
  cursor:pointer;
  transition:var(--transition);
}
.icon-btn:hover{transform:scale(1.1);}
.main-header .icon-btn{
  color:var(--brand-dark);
}


/* ---------- FLIP CARD GLOBAL ---------- */
.flip-card{             /* contenedor exterior */
  perspective:1000px;
  overflow:hidden;
  margin:0 auto;
  width:100%;
  min-height:420px;      /* garantiza altura estable */
}
.flip-card-inner{       /* contenedor giratorio */
  position:relative;
  width:100%;
  height:100%;
  transition:transform .8s;
  transform-style:preserve-3d;
}
.flip-card.is-flipped .flip-card-inner{
  transform:rotateY(180deg);
}
.flip-card-front,
.flip-card-back{        /* ambas caras */
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:1rem;
  text-align:center;
  backface-visibility:hidden;
  border-radius:var(--radius-xl);
}
.flip-card-front{
  background:rgba(255,255,255,.04);
}
.flip-card-back{
  background:rgba(0,168,232,.15);  /* azul eléctrico translúcido */
  transform:rotateY(180deg);
  color:var(--brand-haze);
}
.flip-card-back .hint{
  font-size:.8rem;
  opacity:.7;
  margin-top:.8rem;
}

/* ---------- HERO ---------- */
.hero{
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:0 1rem;
}
.hero-inner{max-width:760px;}
.accent{color:var(--brand-electric);}

.btn-cta{
  display:inline-block;
  margin-top:1.7rem;
  padding:.9rem 2.4rem;
  background:var(--brand-lime);
  color:var(--brand-dark);
  border-radius:var(--radius-xl);
  font-weight:600;
  transition:var(--transition);
}
.btn-cta:hover{transform:translateY(-4px);}

/* ---------- SERVICIOS (grid) ---------- */
.services-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:2rem;
  margin-top:3rem;
}

.service-card{
  padding:2rem;
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  border-radius:var(--radius-xl);
  transition:var(--transition);
}
.service-card:hover{
  transform:translateY(-6px);
  background:rgba(255,255,255,0.1);
}
.service-card i{
  font-size:2.7rem;
  margin-bottom:1rem;
  color:var(--brand-electric);
}

/* ---------- GALERÍA DE PROYECTOS ---------- */
.gallery{
  display:grid;
  gap:4rem;
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); /* 1 col por defecto */
  justify-items:center;
}
@media(min-width:1024px){
  .gallery{
    grid-template-columns:repeat(2,1fr);  /* 2 columnas en desktop */
  }
}
.gallery img{
  display:block;
  margin:0 auto 1rem;
  border-radius:var(--radius-xl);
  height:200px;
  object-fit:cover;
}
.gallery .project-card{
  width:100%;
  max-width:500px;
}

/* ---------- BRANDS (Swiper) ---------- */
.brands .swiper{
  margin-top:3rem;
  padding:1rem 0;
}
.brands .swiper-slide{
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:.6;
  transition:var(--transition);
}
.brands .swiper-slide:hover{opacity:1;}
.brands img{height:46px;width:auto;}

/* ---------- FORMULARIO CONTACTO ---------- */
#contactForm{
  max-width:640px;
  margin:0 auto 2rem;
}
#contactForm input,
#contactForm textarea{
  width:100%;
  padding:1rem;
  margin:.6rem 0;
  border-radius:.6rem;
  border:none;
  background:rgba(255,255,255,.1);
  color:var(--brand-haze);
}
#contactForm button{
  cursor:pointer;border:none;
}

/* Info contacto */
.contact-info{
  max-width:640px;
  margin:0 auto 2rem;
  text-align:left;
}
.contact-info p{
  display:flex;align-items:center;gap:.5rem;
  margin:.3rem 0;font-size:.95rem;
}
.contact-info i{color:var(--brand-electric);}

/* ---------- BOTÓN WHATSAPP ---------- */
.whatsapp-float{
  position:fixed;
  right:24px;
  bottom:24px;
  width:56px;height:56px;
  border-radius:50%;
  background:#25D366;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.9rem;
  box-shadow:0 4px 12px rgba(0,0,0,.35);
  transition:var(--transition);
  z-index:120;
}
.whatsapp-float:hover{transform:scale(1.1);}

/* ---------- LIGHT THEME (modo claro) ---------- */
body.light{
  --brand-dark:#F5F7FA;
  --brand-haze:#0D1B2A;
  background:var(--brand-haze);
  color:var(--brand-dark);
}
body.light .main-header{background:rgba(0,0,0,.06);}
body.light .service-card i{color:var(--brand-electric);}
body.light a{color:var(--brand-electric);}
body.light a:hover{color:var(--brand-dark);}

/* ---------- MEDIA QUERIES ---------- */
@media (max-width:768px){
  .hero{background-position:center top;}
  .navbar ul{gap:1rem;font-size:.9rem;}
  .container-header{padding:0 .7rem;}
  .contact-info{text-align:center;}
}

.main-header.smaller{
  height:70px;
  background:var(--header-bg);
  box-shadow:0 2px 8px rgba(0,0,0,0.06);
}

/* Nombre de la empresa fijo arriba */
.topbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: transparent;
  text-align: center;
  padding: 10px 0;
  z-index: 2000;
  backdrop-filter: blur(6px);
  margin-bottom: 10px; /* Agrega separación */
}

.empresa-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 34px;
  letter-spacing: 1.5px;
  color: white;
  margin: 0;
  text-transform: uppercase;
  text-align: center;
  text-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
}

.empresa-title .azul {
  color: #00b8ff;
}

.animate-title {
  opacity: 0;
  transform: translateY(-30px);
  animation: fadeDown 1s ease-out forwards;
  animation-delay: 0.5s;
}

@keyframes fadeDown {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Header general con transparencia */
.custom-header {
  margin-top: 30px; /* Antes era 80px o 60px */
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to right, #002244cc, #0077ccaa, #00c4ffaa);
  padding: 0.8rem 3rem; /* Reduce grosor vertical */
  height: 70px; /* Reduce altura visual del header */
  backdrop-filter: blur(6px);
  position: sticky;
  top: 50px; /* debajo de la topbar */
  z-index: 1000;
}

/* Nuevo contenedor para permitir desbordamiento del logo */
.logo-wrapper {
  position: relative;
  top: -40px; /* Ajusta entre -30px y -50px según cómo se vea */
  z-index: 1001;
}

/* Logo más grande, sobresaliendo del header */
.logo-container {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  background-color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  border: 3px solid white;
}

.logo-container:hover {
  transform: scale(1.1) rotate(2deg);
  box-shadow: 0 0 20px rgba(0, 196, 255, 0.6);
}

.logo-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* Menú */
.menu {
  margin-left: 180px;
}

.menu ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.menu ul li a {
  font-family: 'Raleway', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-decoration: none;
  position: relative;
  padding-bottom: 5px;
  transition: color 0.3s ease;
}

.menu ul li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 2px;
  background-color: #00c4ff;
  transition: width 0.3s ease;
}

.menu ul li a:hover {
  color: #00c4ff;
}

.menu ul li a:hover::after {
  width: 100%;
}