body {
    font-family: "Open Sans", sans-serif;
    max-width: 650px;
    margin: 40px auto;
    padding: 20px;
    line-height: 1.6;
    background: #102532;
    color: #333;
}

.container {
    background: #d9dae1;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.2);
}

textarea {
    font-family: monospace;
    height: 10rem;
}

textarea, input, select, button {
    width: 100%;
    margin-bottom: 15px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 12pt;
}

button {
    background: #54a2d9;
    color: white;
    border: none;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background: #407ba5;
}

.hidden {
    display: none;
}

.result-box {
    background: #e9ecef;
    padding: 15px;
    word-break: break-all;
    border-radius: 10px;
    margin-top: 10px;
    font-family: monospace;
    margin-bottom: 1rem;
}

.error {
    color: #dc3545;
    background: #ffe6e6;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.success {
    color: #155724;
    background: #d4edda;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.logo {
    text-align: center;

    img {
        max-height: 200px;
    }
}

.nav {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    align-items: center;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.logout-btn {
    background: #6c757d;
    width: auto;
    padding: 5px 15px;
    font-size: 0.9em;
}

h1, h2, h3 {
    margin-top: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    text-align: left;
    padding: 8px;
    border-bottom: 1px solid #ddd;
    vertical-align: middle;
}

.del-btn {
    background: #dc3545;
    width: auto;
    padding: 4px 8px;
    font-size: 0.8em;
}

.admin-section {
    border-top: 2px solid #eee;
    margin-top: 30px;
    padding-top: 20px;
}

#output-message {
    padding: 20px;
    background-color: #e9ecef;
    border-radius: 10px;
    font-family: monospace;
    font-size: 12pt;
}