* { box-sizing: border-box; font-family: "Segoe UI", Tahoma, sans-serif; }
        body { background-color: #f4f6f9; margin: 0; padding: 0; }
        header { background-color: #2e86de; color: white; padding: 20px; text-align: center; }
        main { padding: 20px; max-width: 900px; margin: auto; }
        table { width: 100%; border-collapse: collapse; background-color: white; box-shadow: 0 2px 6px rgba(0,0,0,0.1); border-radius: 10px; overflow: hidden; }
        th, td { padding: 12px 15px; text-align: left; }
        th { background-color: #2e86de; color: white; }
        tr:nth-child(even) { background-color: #f9f9f9; }
        tr:hover { background-color: #e1f0ff; }
        footer { text-align: center; padding: 15px; margin-top: 40px; font-size: 0.9rem; color: #000000ff; }
        .form-box { margin-bottom: 20px; text-align: center; font-size: 30px; }
        .form-box input { padding: 10px; width: 300px; margin-right: 10px; }
        .form-box button { padding: 10px 15px; background-color: #2e86de; color: white; border-radius: 10px; cursor: pointer; }
        .form-box button:hover { background-color: #1b4f72; }
        .back-button {
    position: absolute;
    left: 20px;
    top: 20px;
    text-decoration: none;
    color: white;
    background-color: #1b4f72;
    padding: 8px 12px;
    border-radius: 8px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.back-button:hover {
    background-color: #0d2a44;
}