body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: #f4f7f6; display: flex; justify-content: center; padding: 40px; }
.container { background: white; padding: 30px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); width: 400px; }
.wide { width: 900px; }
h2 { color: #2c3e50; text-align: center; margin-bottom: 25px; }
input, select { width: 100%; padding: 12px; margin: 10px 0; border: 1px solid #ddd; border-radius: 6px; box-sizing: border-box; }
button { width: 100%; padding: 12px; background: #27ae60; color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 16px; margin-top: 10px; }
button:hover { background: #219150; }
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { border: 1px solid #eee; padding: 12px; text-align: left; }
th { background: #f8f9fa; }
.success { color: green; text-align: center; font-weight: bold; }