body {
    background-color: #464849;
    color: #FFFFFF;
    font-family: 'Poppins', sans-serif;
    scroll-behavior: smooth;
  }
  
  /* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.2rem 0; /* výška navbaru */
    transition: background-color 0.4s ease, padding 0.3s ease;
    background-color: transparent; /* start = průhledný */
    z-index: 999;
  }
  .navbar.scrolled {
    background-color: rgba(240, 125, 44, 0.5); /* po scrollu průsvitná oranžová */
    backdrop-filter: blur(8px); /* lehké rozmazání pozadí */
  }

  .navbar a {
    color: #FFFFFF !important;
    font-weight: 600;
    transition: 0.3s;
  }
  .navbar a:hover {
    opacity: 0.8;
  }
  
  /* Mobilní hamburger tlačítko */
.navbar-toggler {
    border: none;
    background: transparent;
  }
  
  .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='white' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
  }
  
  .navbar-toggler:focus {
    box-shadow: none;
  }
  
  .navbar-toggler:hover .navbar-toggler-icon {
    opacity: 0.7;
  }
  
  /* Větší mezery mezi položkami menu */
.navbar-nav .nav-item {
    margin-left: 1.5rem; /* mezera mezi odkazy */
  }
  
  .navbar-nav .nav-link {
    padding: 0.8rem 0; /* svislé zarovnání */
    font-size: 1.05rem; /* trochu větší text */
    letter-spacing: 0.5px; /* decentní rozestup písmen */
  }
  
  
  /* Hero section */
  .hero {
    background: linear-gradient(rgba(0, 0, 0, 0.8), rgba(70,72,73,0.8)), url('images/uvod_ucebna.png') center/cover;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }

  .hero .container {
  padding-top: 8rem; /* zvedne obsah dolů */
}


  .hero h1 {
  font-size: 3.5rem;
  color: #ffffff;
  font-weight: 700;
  text-shadow: 
    0 0 10px #F07D2C,
    0 0 20px #F07D2C,
    0 0 40px #ff9f5c,
    0 0 80px #ffb87a;
  animation: neonPulse 2.5s ease-in-out infinite alternate;
}

@keyframes neonPulse {
  from {
    text-shadow: 
      0 0 8px #F07D2C,
      0 0 16px #F07D2C,
      0 0 32px #ff9f5c,
      0 0 64px #ffb87a;
  }
  to {
    text-shadow: 
      0 0 15px #F07D2C,
      0 0 30px #F07D2C,
      0 0 60px #ff9f5c,
      0 0 120px #ffb87a;
  }
}


  .main-btn {
    background: #3b3c3d;
    color: #fff;
    border: none;
    transition: all 0.3s;
  }
  .main-btn:hover {
    transform: scale(1.05);
    background: #d66e25;
  }

  #countdown {
  color: #fff;
  margin-top: 2rem;
}

  #countdown h3 {
  color: #F07D2C;
  font-weight: 600;
}

  #countdown .time {
  font-size: 1.5rem;
  font-weight: 600;
}

  #countdown .time div {
  background: rgba(59, 60, 61, 0.5);
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  min-width: 80px;
}
  /* Info */
  .img-container {
  position: relative;
  display: inline-block;
  border-radius: 12px;
  overflow: hidden; /* aby pruh kopíroval zaoblení obrázku */
}

.img-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(59, 60, 61, 0.7); /* šedý průsvitný pruh */
  color: #fff;
  text-align: center;
  padding: 0.6rem 0;
  font-weight: 600;
  font-size: 1.05rem;
}

  /* Cards */
#vybaveni .row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem; /* mezera mezi kartami */
}

#vybaveni .col-md-3 {
  flex: 1 1 22%; /* 4 karty na řádek, stejná šířka */
  display: flex;
}

#vybaveni .card {
  width: 100%;       /* karta vyplní celý sloupec */
  height: 400px;     /* pevná výška pro všechny karty */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
}

#vybaveni .card img {
  max-height: 150px;
  object-fit: contain;
  margin-bottom: 1rem;
}

#vybaveni .card h5 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

#vybaveni .card p {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}




  
  /* Section titles */
  .section-title {
  color: #F07D2C;
  margin-bottom: 1.5rem;
  font-weight: 700;
  font-size: 2.2rem; /* zvětšení */
  text-transform: uppercase; /* volitelné – vypadá víc "eventově" */
  }

  #vybaveni .section-title {
  text-align: center;
}

  
  /* Cards */
  .card {
    background-color: rgb(59, 60, 61);
    border: none;
    color: white;
    transition: transform 0.3s, box-shadow 0.3s;
  }
  .card a {
    color: #F07D2C;
    text-decoration: none;
  }
  .hover-up:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
  }

  /* Sponzori */
  #sponzori {
  background-color: #3b3c3d; /* tmavě šedé pozadí */
  padding: 3rem 1rem;
  border-radius: 12px;
}

#sponzori .carousel-inner {
  align-items: center;
}

#sponzori img {
  max-height: 120px;       /* větší loga */
  object-fit: contain;
  transition: transform 0.3s;
}

#sponzori img:hover {
  transform: scale(1.1);
}

#sponzori .carousel-control-prev,
#sponzori .carousel-control-next {
  width: 50px;                 /* menší šipky */
  top: 50%;                     /* vertikální centrování */
  transform: translateY(-50%);
}

#sponzori .carousel-control-prev {
  left: -20px;                  /* posun ven z log */
}

#sponzori .carousel-control-next {
  right: -20px;                 /* posun ven z log */
}

  /* Fade-in efekt */
  .fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease-out, transform 1s ease-out;
  }
  .fade-in.appear {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* Footer */
  footer {
    background-color: #3b3c3d;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 3rem;
  }