body {
    margin: 0;
    background-color: #111;
    color: #fff;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  }
  
  *{
    scroll-margin-top: 70px;

  }

/* NAVIGACE */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background-color: #f8f8f8;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  z-index: 1000;
}

.logo {
  margin-left: 40px;
  display: flex;
  align-items: center;
  text-decoration: none;
  color: #333;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-name {
  font-weight: bold;
  font-size: 1.2em;
  color: #333;
}

.site-description {
  font-size: 0.85em;
  color: #666;
}

.logo_v_headeru{
  height: 40px;
  width: 40px;
  margin-right: 20px;
}

.nav-links {
    margin-right: 40px;
}

.nav-links a {
  text-decoration: none;
  color: #333;
  margin-left: 25px;
  font-size: 1em;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #7c5324;
}

/* MAIN */

.background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;           /* 🟢 zachová poměr stran, ořízne přebytek */
  z-index: -1;                 /* 🔹 obrázek pod obsahem */
}
.background-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    rgba(0, 0, 0, 0.5) 0%,
    rgba(0, 0, 0, 0.8) 100%
  );
  z-index: -1;
  pointer-events: none; /* aby nepřekážel při klikání */
}

main {
  background: none;
}

.hero {
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  text-align: center;
  box-sizing: border-box;

}

.hero a {
    color: #fff;
}
.hero a:hover {
  color: #E8B375;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  max-width: 800px;
  width: 100%;
  text-align: center;
}

.hero-intro {
  font-size: min(1.3rem, 4vw);
  color: #ddd;
  margin: 0;
}

.hero-title {
  font-size: min(3rem, 8vw);
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

.hero-video {
  position: relative;
  padding-bottom: 35.08%;
  height: 0;
  width: 80%;
  max-width: 500px;
  margin: 0 auto;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-quote {
  font-style: italic;
  font-size: min(1.1rem, 4vw);
  color: #ccc;
  margin: 10px 0 0;
}

.minSize60{
    height: 60px;
}

.scroll-down {
    color: #ccc;
    font-size: min(1.1rem, 4vw);
    text-decoration: none;
    padding-bottom: 10px;
}

/* PREZENTACE */
.presentation {
  background-color: #111;
  text-align: center;
  padding: 20px;
}

#pdfContainer {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* běžný režim */
#pdfCanvas {
  max-height: 80vh;
  max-width: 80%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  background-color: white;
  transition: all 0.3s ease;
}

/* fullscreen režim */
.fullscreen {
  background-color: black;        /* tmavé pozadí */
  display: flex;
  flex-direction: column;
  justify-content: center;        /* 🟢 vycentruje svisle */
  align-items: center;            /* 🟢 vycentruje vodorovně */
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
}

.fullscreen #pdfCanvas {
  max-height: 90vh;
  max-width: 100%;
  border-radius: 1;
  box-shadow: none;
  background-color: black;
  object-fit: contain;            /* jistota, že ratio zůstane zachované */
}

/* Tlačítka */
.pdf-controls button {
    margin-top: 5px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, #E8B375, #d29b58);
  color: #222;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

.pdf-controls button:hover {
  background: linear-gradient(135deg, #f0c78e, #e3a85e);
  box-shadow: 0 5px 12px rgba(0, 0, 0, 0.25);
}

.pdf-controls button:active {
  transform: translateY(0);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* Text se stránkami */
#pageInfo {
  font-size: 1rem;
  color: #eee;
  user-select: none;
}

/* FOOTER */

#kdejsme h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 50px;
  letter-spacing: 1px;
  color: #fff;
}

/* seznam Q&A */
#kdejsme ul {
  list-style: none;                   /* odstraní tečky */
  padding: 0;
  max-width: 800px;
  margin: 0 auto;
  text-align: left;                   /* otázky vlevo */
}

#kdejsme li {
  background-color: rgba(255, 255, 255, 0.05);
  border-left: 4px solid #E8B375;     /* 🔹 barva značky NavigAR */
  margin-bottom: 25px;
  padding: 20px 25px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/* otázky */
#kdejsme {
  background-color: #111;             /* tmavé pozadí, ladí s hero */
  color: #f5f5f5;                     /* světlejší text */
  padding: 100px 20px;                /* prostor kolem obsahu */
  text-align: center;                 /* zarovnání na střed */
}

#kdejsme .faq_question {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
}

/* odkazy / email */
#kdejsme a, 
#kdejsme strong {
  color: #E8B375;
  text-decoration: none;
  font-weight: bolder;
}

#kdejsme a:hover {
  color: #fff;
  text-decoration: underline;
}

@media (max-width: 800px) {
  #kdejsme {
    padding: 60px 15px;
    font-size: 0.8rem;
  }

  #kdejsme h1 {
    font-size: 1.3rem;
    margin-bottom: 30px;

  }

  #kdejsme li {
    padding: 15px 20px;
  }

  #kdejsme a, 
  #kdejsme strong {
    font-size: 0.8rem;
  }
  #kdejsme .faq_question {
    font-size: 1rem;
    }

}

@media (max-width: 800px) {
  .nav-links {
    display: none;
  }
  .navbar {
    justify-content: flex-start;
    padding: 0 20px;
  }
    .logo {
    display: flex;
    align-items: center;
    margin-left: 10px;
  }
    .site-name {
    font-size: 1.3rem;
  }
  .site-description {
    margin-left: auto;       /* 🔹 posune text na pravou stranu */
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
  }

  /* Pokud chceš, můžeš trochu zmenšit lištu */
  .navbar {
    height: 55px;
  }

  /* Volitelně: trochu menší logo */
  .logo_v_headeru {
    height: 32px;
    width: 32px;
  }

.minSize60{
  display: none;
}

.hero {
  min-height: auto;
  padding: 80px 10px 20px;
  justify-content: start;
}

/* vnitřní obsah hero sekce */
.hero-content {
  justify-content: start;   /* 🔹 zarovnání doprostřed, ale bez roztahování */
  gap: 25px;                 /* 🔹 mezery mezi nadpisem, textem, videem */
}

.hero-intro{
  font-size: 0.8em;
}
.hero-title {
  font-size: 1.3em;
  font-weight: 600;
}
.hero-quote{
  font-size: 0.8em;
}

.presentation {
  position: relative;
  background: none;
}
.hero-video{
    position: relative;
  padding-bottom: 50.6%;
  width: 90%;
  margin: 0 auto;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  max-width: none;
}
.scroll-down{
  display: none;
}

.background {
  object-position: 30% 50%;    /* 🟢 posun středu výřezu (x%, y%) */
}


}