* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #f0e0d6;
    font-family: 'Arial', sans-serif;
    font-size: 14px;
    line-height: 1.4;
    color: #800000;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px;
}

.header {
    background: #efefef;
    border: 1px solid #b7c5d9;
    padding: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 18px;
    font-weight: bold;
    color: #800000;
}

.logout-btn {
    background: #d6daf0;
    border: 1px solid #b7c5d9;
    padding: 5px 10px;
    text-decoration: none;
    color: #800000;
    font-size: 12px;
}

.logout-btn:hover {
    background: #e5e9f0;
}

.board-container {
    background: #efefef;
    border: 1px solid #b7c5d9;
    margin-bottom: 10px;
}

.posts-container {
    max-height: 600px;
    overflow-y: auto;
    padding: 10px;
}

.post {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    margin-bottom: 10px;
    padding: 10px;
}

.post-header {
    margin-bottom: 8px;
    font-size: 12px;
}

.post-id {
    font-weight: bold;
    color: #800000;
}

.post-time {
    color: #707070;
    margin-left: 10px;
}

.post-file {
    margin-bottom: 8px;
}

.post-image {
    max-width: 300px;
    max-height: 300px;
    border: 1px solid #d9bfb7;
}

.file-info {
    font-size: 11px;
    color: #707070;
    margin-top: 5px;
}

.post-message {
    white-space: pre-wrap;
    word-wrap: break-word;
}

.post-form {
    background: #efefef;
    border: 1px solid #b7c5d9;
    padding: 10px;
}

.form-row {
    margin-bottom: 10px;
}

.message-input {
    width: 100%;
    height: 80px;
    border: 1px solid #b7c5d9;
    padding: 8px;
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
}

.file-input {
    border: 1px solid #b7c5d9;
    padding: 5px;
    font-size: 12px;
    margin-right: 10px;
}

.send-btn {
    background: #d6daf0;
    border: 1px solid #b7c5d9;
    padding: 8px 15px;
    color: #800000;
    font-size: 14px;
    cursor: pointer;
}

.send-btn:hover {
    background: #e5e9f0;
}

.error {
    background: #ffd6d6;
    border: 1px solid #ff9999;
    color: #cc0000;
    padding: 10px;
    margin-bottom: 10px;
    font-size: 14px;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f0e0d6;
}

::-webkit-scrollbar-thumb {
    background: #d9bfb7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #c4a6a0;
}