* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Sarabun', sans-serif; }
body { background-color: #f4f7f6; color: #333; }
.container { width: 100%; max-width: 900px; margin: 50px auto; background: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
h2 { text-align: center; margin-bottom: 20px; color: #444; }
.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; font-weight: bold; }
input[type="text"], input[type="password"], input[type="month"], input[type="date"], input[type="file"] { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; }
button { width: 100%; padding: 10px; background: #E4002B; color: white; border: none; border-radius: 4px; font-size: 16px; cursor: pointer; transition: 0.3s;}
button:hover { background: #B30022; }
.table-container { margin-top: 30px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { border: 1px solid #ddd; padding: 12px; text-align: center; }
th { background-color: #f8f9fa; font-weight: bold; }