body {
		background: #ffffff;
    font-family: 'Poppins', sans-serif;
    font-style: normal;
		font-weight: 400;
}

h1,h2,h3,h4,h5,h6 {
  font-weight: 600;
}

h3,h5 {
  font-weight: 500;
}

h1 {
    font-size: 40px;
    letter-spacing: 2px;
}

h2 {
  font-size: 30px;
  text-transform: uppercase;
}

h3 {
  line-height: 36px;
}

h5 {
    letter-spacing: 1px;
    padding-top: 10px;
}

p {
    color: #707070;
    font-size: 14px;
    line-height: 24px;
}

a {
  text-decoration: none !important;
  outline: none;
}

.section-title {
  margin-bottom: 32px;
}

#overview,
#register {
  padding-top: 14rem;
  padding-bottom: 14rem;
}

#detail, #video,
#speakers, 
#program,
#sponsors, 
#contact, footer {
    padding-top: 10rem;
    padding-bottom: 10rem;
}

#detail,
#speakers, #sponsors,
footer {
  text-align: center;
}

#overview h3,
#detail h3, #video h3,
#register h3,
#venue h3,
#contact h3 {
    padding-bottom: 12px;
}

#intro .btn,
#contact .btn {
    background: transparent;
    border: 2px solid #ffffff;
    border-radius: 0px;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 12px;
    padding: 14px 42px;
    margin-top: 42px;
    margin-right: 12px;
    -webkit-transition: all 0.4s ease-in-out;
    transition: all 0.4s ease-in-out;
}

#intro .btn-danger,
#contact .btn-danger {
    background: #f2545f;
    border-color: transparent;
}

#contact .btn {
  border-radius: 100px;
}

#intro .btn-danger:hover {
  background: transparent;
  border-color: #ffffff;
  color: #ffffff;
}

#contact .btn-danger:hover {
  background: #222;
}

#intro .btn-default:hover {
    background: #ffffff;
    color: #333333;
    border-color: transparent;
}

.parallax-section {
    background-attachment: fixed;
    background-size: cover;
}


.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  display: flex;
  flex-flow: row nowrap;
  justify-content: center;
  align-items: center;
  background: none repeat scroll 0 0 #ffffff;
}

.sk-rotating-plane {
  width: 50px;
  height: 50px;
  background-color: #222;
  -webkit-animation: sk-rotatePlane 1.2s infinite ease-in-out;
          animation: sk-rotatePlane 1.2s infinite ease-in-out; }

@-webkit-keyframes sk-rotatePlane {
  0% {
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
            transform: perspective(120px) rotateX(0deg) rotateY(0deg); }
  50% {
    -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
            transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); }
  100% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
            transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); } }

@keyframes sk-rotatePlane {
  0% {
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
            transform: perspective(120px) rotateX(0deg) rotateY(0deg); }
  50% {
    -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
            transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); }
  100% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
            transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); } }


/* Alap navbar */
.custom-navbar {
  margin-bottom: 0;
  background-color: #101010;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 9999;
  height: 100px;
  display: flex;
  justify-content: space-between; /* logó balra, menü jobbra */
  align-items: center; /* függőleges középre */
  padding: 0 20px;
  transition: all 0.3s ease-in-out;
}

/* Logó */
.custom-navbar .navbar-brand {
  display: flex;
  align-items: center;
  height: 100%;
  margin-top: 5px;
}

.custom-navbar .navbar-brand img {
  max-height: 75px;
  width: auto;
  display: block;
  transition: max-height 0.3s ease-in-out;
}

/* Menüsor desktop */
.custom-navbar .nav.navbar-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
}

.custom-navbar .nav li a {
  line-height: 100px;
  font-size: 12px;
  font-weight: 500;
  color: #ddd; /* menüpont színe */
  text-transform: uppercase;
  transition: all 0.3s ease-in-out;
}

.custom-navbar .nav li a:hover {
  color: #66ccff;
  background: transparent;
}

.custom-navbar .nav li.active > a {
  color: #66ccff;
}

/* Hamburger ikon */
.navbar-toggle {
  border: none;
  background: transparent;
}

.navbar-toggle .icon-bar {
  background: #ffffff;
}

/* Navbar shrink */
.navbar.shrink {
  height: 70px;
}

.navbar.shrink .navbar-brand img {
  max-height: 60px;
}

.navbar.shrink .nav li a {
  line-height: 70px;
}

/* Reszponzív mobil */
@media (max-width: 768px) {
  .custom-navbar {
    flex-direction: column;
    align-items: center;
    height: auto;
    padding: 5px 20px;
  }

  .custom-navbar .navbar-brand {
    margin-bottom: 8px;
    height: auto;
  }

  .custom-navbar .navbar-brand img {
    max-height: 50px;
  }

  /* Menüsor mobilon */
  .custom-navbar .nav.navbar-nav {
    flex-direction: column;
    width: 100%;
    text-align: center;
  }

  .custom-navbar .nav li {
    width: 100%;
  }

  .custom-navbar .nav li a {
    line-height: normal;
    padding: 8px 12px;
    display: block;
    color: #ddd; /* explicit szín */
  }

  .custom-navbar .nav li a:hover {
    color: #66ccff;
    background: transparent;
  }

  .navbar-toggle .icon-bar {
    background: #ffffff;
    margin-top: 20px;
  }
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  color: #333;
  background-color: #fff;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}

.blog-hero {
  min-height: 80vh;
  background: url('../images/blog-hero.jpg') center center/cover no-repeat;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}

.blog-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}


.blog-hero .content {
  position: relative;
  z-index: 2;
}

.blog-hero h1 {
  font-size: 3.8em;
  font-weight: 700;
  margin-bottom: 10px;
}
.blog-hero p {
  font-size: 1.3em;
  color: #ddd;
}

.blog-section {
  padding-top: 50px !important;
  padding-bottom: 50px !important;
}

.blog-card {
  background: white;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.blog-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.blog-content {
  padding: 30px;
}

.blog-content h3 {
  font-size: 1.8em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #003057;
}

.blog-content p {
  font-size: 1.1em;
  color: #555;
  margin-bottom: 25px;
}

.read-more {
  text-transform: uppercase;
  font-weight: 600;
  text-decoration: none;
  color: #003057;
  transition: 0.3s;
}
.read-more:hover {
  color: #66ccff;
}

.more-posts-btn {
  display: inline-block;
  background: #003057;
  color: white;
  font-weight: 600;
  text-transform: uppercase;
  padding: 14px 40px;
  border-radius: 50px;
  margin-top: 40px;
  transition: all 0.3s ease;
}
.more-posts-btn:hover {
  background: #005c99;
  color: #fff;
  text-decoration: none;
}

.blog-section {
  padding-top: 150px;
  padding-bottom: 100px;
  background: #f8f8f8;
}

footer {
  flex-shrink: 0;
  background: #111;
  color: #ccc;
  text-align: center;
  padding: 30px 0;
  font-size: 0.9em;
}


@media (max-width: 768px) {

  .blog-card {
    margin-bottom: 40px;
  }

  .blog-section {
    padding-top: 180px;
    padding-bottom: 120px;
  }

  .blog-content {
    padding: 20px;
  }

  .blog-card img {
    height: auto;
    max-height: 250px;
  }

  .text-center .more-posts-btn {
    margin-top: 60px;
  }
}

@media (max-width: 480px) {
  .blog-card {
    margin-bottom: 60px;
  }

  .blog-section {
    padding-top: 200px;
    padding-bottom: 140px;
  }

  .blog-content h3 {
    font-size: 1.4em;
  }

  .blog-content p {
    font-size: 1em;
    line-height: 1.6;
  }
}

#blog-heading {
  background-color: #f9f9f9; 
  padding: 60px 20px;
  text-align: center;
  position: relative;
  z-index: 10;            
}

#blog-heading h2 {
  color: #003057;         
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0;
  display: inline-block;
}

@media (max-width: 768px) {
  #blog-heading h2 {
    font-size: 1.8rem;
  }
}

.scrolling-logos {
  overflow: hidden;
  background: #fff;
  padding: 40px 0;
}

.scrolling-track {
  display: flex;
  animation: scroll 30s linear infinite;
}

.scrolling-track a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  margin: 0 40px;
  flex-shrink: 0;
}

.scrolling-track img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%) brightness(0.7);
  opacity: 0.8;
  transition: all 0.3s ease;
}

.scrolling-track img:hover {
  filter: none;
  opacity: 1;
  transform: scale(1.05);
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (max-width: 768px) {
  .scrolling-track {
    animation: scroll 30s linear infinite;
  }

  .scrolling-track a {
    height: 100px;
    margin: 0 20px;
  }
}

.nav-tabs {
  margin-bottom: 20px;
}
.nav-tabs > li {
  float: left;
  margin-bottom: -1px;
}
.nav-tabs > li > a {
  color: #000000;
  font-weight: 600;
  margin-right: 2px;
  line-height: 1.42857143;
  border: none;
  border-radius: 0px;
}
.nav-tabs > li > a:hover {
  background-color: transparent;
}
.nav-tabs > li.active > a,
.nav-tabs > li.active > a:hover,
.nav-tabs > li.active > a:focus {
  color: #66ccff;
  cursor: default;
  background-color: transparent;
  border: 1px solid transparent;
  border-bottom-color: #999;
}
.tab-content {
  padding-top: 20px;
}


footer {
  font-family: 'Poppins', sans-serif;
  color: #fff;
  background-color: #333;
  text-align: left;
  padding: 0;
}

.footer-top {
  padding: 4rem 0;
  background-color: #444;
}

.footer-top h4 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #fff;
  text-align: left;
}

.footer-top p,
.footer-top a,
.footer-top ul li a {
  font-size: 1.8rem;
  color: #ccc;
  text-decoration: none;
}

.footer-top a:hover,
.footer-top ul li a:hover {
  color: #0077cc;
}

.footer-top ul {
  list-style: none;
  padding: 0;
}

.footer-top ul li {
  margin-bottom: 2rem;
}

.social-icon {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 2rem;
}

.social-icon li a {
  display: inline-block;
  width: 60px;
  height: 60px;
  line-height: 60px;
  font-size: 2.5rem;
  text-align: center;
  border-radius: 50%;
  background-color: #555;
  color: #fff;
  transition: 0.3s;
}

.social-icon li a:hover {
  background-color: #007bff;
}

.footer-bottom {
  background-color: #222;
  color: #fff;
  padding: 2rem 0;
  font-size: 1.8rem;
  text-align: center;
  margin: 0;
}

@media (max-width: 768px) {
  .footer-top .row {
    display: flex;
    flex-direction: column;
    gap: 3rem;
  }

  .social-icon {
    justify-content: flex-start;
  }
}

.go-top {
  background-color: #222;
  bottom: 2em;
  right: 2em;
  color: #ffffff;
  font-size: 32px;
  display: none;
  position: fixed;
  text-decoration: none;
  width: 60px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  transition: all 0.4s ease-in-out;
  border-radius: 50%;
}

.go-top:hover {
  background: #66ccff;
  color: #ffffff;
}


@media (max-width: 980px) {

  p {font-size: 13px;}

  .custom-navbar .navbar-brand {
    font-size: 2rem;
  }

  .custom-navbar .nav li a {
    font-size: 11px;
	line-height: 20px;
  }

  #intro { height: 65vh; }

  #video iframe {
    margin-top: 42px;
  }

  #contact .contact_detail {
  background: #ffffff;
  padding: 10rem 3rem 10rem 5rem;
}

}

@media (max-width: 768px) {

  .custom-navbar .navbar-brand {
    line-height: 20px;
  }

  #overview img,
  #detail .col-md-4,
  #register form {
    padding-top: 32px;
  }

  .nav-tabs > li > a {
    font-size: 13px;
  }

  #program img {
    padding-bottom: 32px;
  }

  #sponsors img {
    padding-top: 22px;
  }

  #contact .contact_detail {
    margin-top: 82px;
  }

}

@media (max-width: 760px) {

  #intro {
    height: 100vh;
  }

}

.custom-navbar .nav li a:hover,
.custom-navbar .nav li a:focus,
.custom-navbar .nav li a:active {
  background: transparent !important;
  color: #66ccff !important;
  outline: none !important;
  box-shadow: none !important;
}