* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; background: #eef2f5; display: flex; justify-content: center; padding-top: 40px; min-height: 100vh; }
.container { background: white; padding: 30px; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); width: 700px; }
h1 { color: #34495e; text-align: center; margin-bottom: 20px; }
.form-container { display: flex; gap: 10px; margin-bottom: 25px; }
input { flex: 1; padding: 10px; border: 1px solid #ccc; border-radius: 4px; outline: none; }
button { padding: 10px 15px; background: #3498db; color: white; border: none; border-radius: 4px; cursor: pointer; }
button:hover { background: #2980b9; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
th { background-color: #34495e; color: white; }
tr:nth-child(even) { background-color: #f9f9f9; }
.delete-btn { background: #e74c3c; padding: 6px 12px; border-radius: 3px; }
.delete-btn:hover { background: #c0392b; }