body {
  margin: 0; padding: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #f4f7fa;
  color: #333;
}
header {
  background: #5082bc;
  color: #fff;
  display: flex;
  align-items: center;
  padding: 1rem;
}
header .logo {
  height: 100px;
  margin-right: 1rem;
}
.container {
  max-width: 800px;
  margin: 2rem auto;
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
}
ul.file-list { list-style: none; padding: 0; margin: 0; }
.file-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid #e0e0e0;
}
.file-list li:last-child { border: none; }
.file-info { display: flex; align-items: center; width: calc(100% - 200px); }
.file-icon { font-size: 1.5rem; margin-right: 0.75rem; }
.file-title { font-weight: 500; }
.buttons a {
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  font-size: 0.9rem;
  transition: background 0.2s;
}
.buttons a.open:hover { background: rgba(255,255,255,0.2); }
.buttons a.download { background: #FFD100; color: #0057B8; margin-left: 0.5rem; }
.buttons a.download:hover { background: #e6c000; }

/* Login page styles */
body { background: #f4f7fa; }
.login-container {
  max-width: 320px;
  margin: 10vh auto;
  padding: 2rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  text-align: center;
}
.login-container .logo { height: 100px; }
.login-container input {
  width: 100%; padding: 0.5rem;
  box-sizing: border-box;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.login-container button {
  width: 100%; padding: 0.5rem;
  background: #0057B8;
  border: none;
  color: #fff;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
}
.login-container button:hover { background: #004a9c; }