body {
    font-family: Arial, sans-serif;
    max-width: auto;
    margin-top: 10px;
    margin-right: auto;
    margin-bottom: 10px;
    margin-left: auto;
    background: #222222;
    color: #cdcdcd;
    padding: 20px;
    border-radius: 10px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

nav a {
    color: #bababa;
    text-decoration: none;
    margin: 0 10px;
}

nav a:hover {
    color: #c3f4b9;
}

form input, form textarea {
    width: 100%;
    margin: 5px 0 15px;
    padding: 8px;
    box-sizing: border-box;
}

button {
    background: #0077cc;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
}

button:hover {
    background: #005fa3;
}

.flash {
    background: #e8ffe8;
    border: 1px solid #66bb66;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 5px;
}

.logo_main_top {
  width: 700px;
  height: auto;
  margin: 4px;
}