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

body
{
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.all 
{
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.head 
{
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  color: white;
  margin-left: -20px;
  margin-right: -20px;
  height: 150px;
}  
body.dark-mode {
  background: #000;        
  color: #fff;          
}

body.dark-mode .all {
  background: #111;        
  color: #fff;
}

body.dark-mode input,
body.dark-mode table {
  background: #222;
  color: #fff;
  border: 1px solid #444;
}

body.dark-mode .table-primary {
  background: #333 !important;
  color: #fff !important;
}