@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: url('background.jpg') no-repeat center center fixed;
  background-size: cover;
  color: #333;
}

.site-header {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  padding: 15px 30px;
  text-align: center;
  box-shadow: 0 8px 16px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  max-width: 120px;
  margin-bottom: 10px;
}

.menu {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.menu a {
  text-decoration: none;
  color: #2a4d9b;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 8px;
  transition: background 0.3s;
}

.menu a:hover, .menu a.active {
  background-color: #e0e6f7;
}

.main-content {
  max-width: 1000px;
  margin: 60px auto;
  padding: 30px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  text-align: center;
}

.container {
  max-width: 960px;
  margin: auto;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

h1, h2 {
  color: #2a4d9b;
  font-weight: 700;
}

input, button, select {
  margin: 5px 0;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

button {
  background-color: #2a4d9b;
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background-color: #1c3879;
}

fieldset {
  margin-bottom: 20px;
  padding: 15px;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(6px);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  border: 1px solid #ccc;
  padding: 12px;
  text-align: center;
}

th {
  background-color: #e0e6f7;
  font-weight: 600;
}

.file-list a {
  font-weight: 600;
  color: #2a4d9b;
  text-decoration: none;
}

.file-list a:hover {
  text-decoration: underline;
}

.site-footer {
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(6px);
  padding: 20px;
  text-align: center;
  font-size: 14px;
  color: #444;
  margin-top: 60px;
  border-top: 1px solid #ddd;
}