* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow-x: hidden; 
  overflow-y: auto;    
}


.video-background {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  z-index: -2;
}

.video-background video {
  height: 100%;
  width: 100%;
  object-fit: cover;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: -1;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(19, 15, 15, 0.9);
  padding: 15px 40px;
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
}

.logo-container {
  flex-shrink: 0;
}

.logo {
  height: 55px;
}

nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 40px;
  justify-content: center;
}

.nav-link {
  position: relative;
  text-decoration: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 16px;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background-color: #ff0000;
  left: 0;
  bottom: -5px;
  transition: width 0.3s;
}

.nav-link:hover::after {
  width: 100%;
}

main {
  max-width: 700px;
  margin: 50px auto 40px auto; 
  background-color: rgba(255, 255, 255, 0.08);
  padding: 40px;
  border-radius: 12px;
  color: white;
  text-align: center;
}

h2 {
  margin-bottom: 25px;
  font-size: 28px;
  color: #ffffff;
}

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

label {
  display: flex;
  flex-direction: column;
  text-align: left;
  font-size: 16px;
  color: white;
}

input[type="text"],
input[type="date"],
input[type="file"],
select {
  padding: 10px;
  border-radius: 5px;
  border: none;
  margin-top: 6px;
  font-size: 15px;
  background-color: #fff;
  color: #000;
}

select option.placeholder-option {
  color: #888;
}

button[type="submit"] {
  padding: 12px;
  font-size: 16px;
  background-color: #222;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button[type="submit"]:hover {
  background-color: #444;
}

@media (max-width: 768px) {
  .header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  nav {
    justify-content: center;
  }

  .nav-list {
    flex-direction: column;
    gap: 20px;
  }

  main {
    margin: 90px 20px 0 20px;
    padding: 30px 20px;
  }
}