/* Reset & βασικές ρυθμίσεις */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Arial', sans-serif;
}

body {
  background-color: #FFF4F4;
  color: #2c3e50; /* σκούρο μπλε-γκρι για κείμενο */
  line-height: 1.6;
}

header {
  background-color: #004080; /* βαθύ μπλε */
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 30px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo img {
  height: 55px;
  width: auto;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
}

nav ul li a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 5px 0;
  border-bottom: 3px solid transparent;
  transition: border-color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
  border-bottom: 3px solid #f39c12; /* χρυσό πορτοκαλί για έμφαση */
  color: #f39c12;
}

.lang-switch a {
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  margin-left: 15px;
  font-size: 0.9rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s ease;
}

.lang-switch a.active,
.lang-switch a:hover {
  border-bottom: 2px solid #f39c12;
  color: #f39c12;
}

main {
  max-width: 1000px;
  margin: 40px auto 60px;
  padding: 0 20px;
}

.h h1 {
  color: #004080;
  font-size: 2rem;
  margin-bottom: 20px;
  border-left: 5px solid #f39c12;
  padding-left: 12px;
}
.partners h1 {
  color: #004080;
  font-size: 2rem;
  margin-bottom: 20px;
  border-left: 5px solid #f39c12;
  padding-left: 12px;
}
.hero {
  text-align: center;
  margin-bottom: 50px;
}

.hero h1 {
  font-size: 2.8rem;
  color: #004080;
  margin-bottom: 15px;
  
}

.hero p {
  font-size: 1.3rem;
  color: #9e7035;
  font-style: italic;
}

.intro h2 {
  color: #004080;
  font-size: 2rem;
  margin-bottom: 20px;
  border-left: 5px solid #f39c12;
  padding-left: 12px;
}

.intro p {
  font-size: 1.1rem;
  color: #34495e;
  max-width: 800px;
  margin-bottom: 30px;
}

.partner-logos {
  list-style: none;
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: center;
  margin-top: 40px;
  flex-wrap: wrap;
}

.partner-logos li img {
  height: 90px;
  object-fit: contain;
  filter: drop-shadow(1px 1px 1px rgba(0,0,0,0.1));
  transition: transform 0.3s ease;
}

.partner-logos li img:hover {
  transform: scale(1.05);
}

footer {
  background-color: #f9f9f9;
  color: #7f8c8d;
  text-align: center;
  padding: 20px 15px;
  border-top: 1px solid #ddd;
}

.footer-logos img {
  height: 45px;
  margin-bottom: 10px;
  filter: grayscale(0.3);
  opacity: 0.85;
  transition: opacity 0.3s ease;
}

.footer-logos img:hover {
  opacity: 1;
  filter: grayscale(0);
}
.video-container {
  
  position: relative;
  overflow: hidden;
}

#bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}

.video-container .content {
  
  position: relative;
  z-index: 1;
  padding: 20px; /* αν θέλεις */
}

/* Header και footer πάνω από το main/video */
header, footer {
  position: relative;
  z-index: 2;
}