body {
    background-color: #d0d8e8;
    background-image: url('background.gif');
    color: #000000;
    font-family: "MS PGothic", "ＭＳ Ｐゴシック", sans-serif;
    font-size: 16px;
}

.container {
    width: 90%;
    max-width: 850px;
    margin: 10px auto;
    background-color: #c0c8d8;
    border: 2px outset #a0a8b8;
    padding: 10px;
}

.header {
    background-color: #000080;
    color: #ffffff;
    text-align: center;
    padding: 5px;
    border: 2px inset #ffffff;
}

.header h1 {
    font-family: "Times New Roman", serif;
    font-size: 32px;
    margin: 0;
}

.header p {
    margin: 5px;
    font-size: 14px;
    color: #ffff00;
}

.bbs-thread {
    margin-top: 15px;
}

.bbs-thread h2 {
    font-size: 18px;
    background-color: #a0a8b8;
    padding: 3px 10px;
    border: 1px solid #000;
    color: #000;
}

.post {
    background-color: #e0e8f8;
    border: 1px solid #000080;
    margin-bottom: 10px;
}

.post-info {
    background-color: #8080c0;
    color: #ffffff;
    padding: 3px 8px;
    font-size: 14px;
}

.post-body {
    padding: 10px;
    line-height: 1.6;
}

.leaked-doc {
    background-color: #000;
    color: #00ff00;
    padding: 15px;
    margin: 10px 0;
    border: 2px inset #888;
}

.leaked-doc pre {
    font-family: "Courier New", monospace;
    font-size: 16px;
    white-space: pre-wrap; /* 長い行でも折り返す */
    margin: 0;
}

#action-area {
    margin-top: 20px;
    background-color: #a0a8b8;
    border: 1px solid #000;
    padding: 15px;
    text-align: center;
}

#password {
    padding: 5px;
    font-size: 16px;
}

button {
    padding: 5px 10px;
    font-size: 16px;
    font-weight: bold;
}

#message {
    color: #ff0000;
    font-weight: bold;
    margin-top: 10px;
}

#result p {
    font-size: 1.1em;
    font-weight: bold;
}

.next-stage {
    display: inline-block;
    margin-top: 10px;
    padding: 10px 15px;
    font-size: 20px;
    font-weight: bold;
    color: #000;
    background-color: #ffff00;
    text-decoration: none;
    border: 2px outset #ff0000;
}
.log-data {
    background-color: #000;
    color: #00ff00;
    font-family: "Courier New", monospace;
    padding: 15px;
    margin: 10px 0;
    border: 2px inset #888;
    white-space: pre-wrap;
    font-size: 16px;
}