* {
    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;
}

.home-link {
    color: #800000;
    text-decoration: none;
}

.home-link:hover {
    color: #ff6b6b;
}

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

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

.boards-container {
    background: #efefef;
    border: 1px solid #b7c5d9;
    margin-bottom: 10px;
    padding: 15px;
}

.boards-container h2 {
    color: #800000;
    margin-bottom: 15px;
    font-size: 16px;
}

.boards-list {
    display: grid;
    gap: 10px;
}

.board-item {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    padding: 10px;
    transition: background 0.2s;
}

.board-item:hover {
    background: #e5d4c0;
}

.board-link {
    text-decoration: none;
    color: #800000;
    display: block;
}

.board-id {
    font-weight: bold;
    color: #ff6b6b;
    margin-right: 10px;
}

.board-name {
    font-weight: bold;
    margin-right: 10px;
}

.board-desc {
    color: #707070;
    font-size: 12px;
}

.motd-container {
    background: #efefef;
    border: 1px solid #b7c5d9;
    margin-bottom: 10px;
    padding: 15px;
    text-align: center;
}

.motd {
    color: #800000;
    font-size: 16px;
    font-weight: bold;
}

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

.thread-container {
    padding: 10px;
}

.thread-header {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    padding: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.thread-header h2 {
    color: #800000;
    font-size: 16px;
}

.back-link {
    color: #ff6b6b;
    text-decoration: none;
    font-size: 12px;
}

.back-link:hover {
    text-decoration: underline;
}

.threads-container {
    padding: 10px;
}

.threads-list {
    max-height: 600px;
    overflow-y: auto;
}

.thread-item {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    margin-bottom: 10px;
    padding: 10px;
    transition: background 0.2s;
}

.thread-item:hover {
    background: #e5d4c0;
}

.thread-link {
    text-decoration: none;
    color: #800000;
}

.thread-title {
    font-weight: bold;
    color: #ff6b6b;
}

.thread-info {
    color: #707070;
    font-size: 12px;
    margin-top: 5px;
    display: block;
}

.thread-file {
    margin: 10px 0;
}

.thread-image {
    max-width: 200px;
    max-height: 200px;
    border: 1px solid #d9bfb7;
}

.thread-description {
    color: #800000;
    margin-top: 10px;
    padding: 10px;
    background: #e5d4c0;
    border-left: 3px solid #ff6b6b;
    font-size: 13px;
}

.anonymous-id {
    color: #ff6b6b;
    font-weight: bold;
    margin-left: 10px;
    font-size: 12px;
}

.new-thread-button {
    text-align: center;
    margin: 20px 0;
}

.new-thread-btn {
    background: #ff6b6b;
    border: 1px solid #ff6b6b;
    padding: 15px 30px;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    border-radius: 5px;
    transition: background 0.2s;
}

.new-thread-btn:hover {
    background: #ff5252;
}

.new-thread-container {
    background: #efefef;
    border: 1px solid #b7c5d9;
    margin-bottom: 10px;
    padding: 20px;
}

.thread-form {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    padding: 20px;
    margin-bottom: 20px;
}

.thread-form h2 {
    color: #800000;
    margin-bottom: 20px;
    font-size: 18px;
}

.markdown-help {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    padding: 15px;
}

.markdown-help h3 {
    color: #800000;
    margin-bottom: 10px;
    font-size: 14px;
}

.markdown-help ul {
    list-style: none;
    padding: 0;
}

.markdown-help li {
    margin-bottom: 5px;
    font-size: 12px;
    color: #800000;
}

.markdown-help code {
    background: #e5d4c0;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: monospace;
}

.cancel-btn {
    background: #d6daf0;
    border: 1px solid #b7c5d9;
    padding: 8px 15px;
    color: #800000;
    text-decoration: none;
    font-size: 14px;
    margin-left: 10px;
}

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

.post-message strong {
    font-weight: bold;
}

.post-message em {
    font-style: italic;
}

.post-message u {
    text-decoration: underline;
}

.post-message del {
    text-decoration: line-through;
}

.post-message code {
    background: #e5d4c0;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: monospace;
}

.post-message ul {
    margin: 10px 0;
    padding-left: 20px;
}

.post-message li {
    margin-bottom: 5px;
}

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

.post {
    background: #f0e0d6;
    border: 1px solid #d9bfb7;
    margin-bottom: 10px;
    padding: 10px;
    border-left: 3px solid #ff6b6b;
}

.post-header {
    margin-bottom: 8px;
    font-size: 12px;
    border-bottom: 1px solid #d9bfb7;
    padding-bottom: 5px;
}

.post-id {
    font-weight: bold;
    color: #ff6b6b;
}

.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;
    color: #800000;
}

.reply-link {
    color: #ffa500;
    text-decoration: none;
    font-weight: bold;
}

.reply-link:hover {
    text-decoration: underline;
}

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

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

.title-input {
    width: 100%;
    border: 1px solid #b7c5d9;
    padding: 8px;
    font-family: inherit;
    font-size: 14px;
    background: #f0e0d6;
    color: #800000;
}

.title-input:focus {
    outline: none;
    border-color: #ff6b6b;
}

.description-input {
    width: 100%;
    height: 60px;
    border: 1px solid #b7c5d9;
    padding: 8px;
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    background: #f0e0d6;
    color: #800000;
}

.description-input:focus {
    outline: none;
    border-color: #ff6b6b;
}

.message-input {
    width: 100%;
    height: 80px;
    border: 1px solid #b7c5d9;
    padding: 8px;
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    background: #f0e0d6;
    color: #800000;
}

.message-input:focus {
    outline: none;
    border-color: #ff6b6b;
}

.file-input {
    border: 1px solid #b7c5d9;
    padding: 5px;
    font-size: 12px;
    margin-right: 10px;
    background: #f0e0d6;
    color: #800000;
}

.send-btn {
    background: #d6daf0;
    border: 1px solid #b7c5d9;
    padding: 8px 15px;
    color: #800000;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

.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;
}

.post-message {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #f4d03f;
    border: 2px solid #e67e22;
    color: #8b4513;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    z-index: 1000;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: #f39c12;
    transform: scale(1.05);
}

.dark-theme {
    background: #1a1a1a;
    color: #e0e0e0;
}

.dark-theme .header {
    background: #2d2d2d;
    border-bottom: 2px solid #444;
}

.dark-theme .header h1 {
    color: #f4d03f;
}

.dark-theme .header a {
    color: #f39c12;
}

.dark-theme .header a:hover {
    color: #e67e22;
}

.dark-theme .container {
    background: #2d2d2d;
    border: 2px solid #444;
}

.dark-theme .board-list {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .board-item {
    background: #444;
    border: 1px solid #666;
}

.dark-theme .board-item:hover {
    background: #555;
}

.dark-theme .board-item a {
    color: #f4d03f;
}

.dark-theme .threads-table {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .threads-table th {
    background: #444;
    color: #f4d03f;
    border-bottom: 2px solid #666;
}

.dark-theme .threads-table td {
    border-bottom: 1px solid #555;
}

.dark-theme .thread-id {
    color: #f39c12;
}

.dark-theme .thread-title {
    color: #e0e0e0;
}

.dark-theme .thread-title a {
    color: #f4d03f;
}

.dark-theme .thread-title a:hover {
    color: #f39c12;
}

.dark-theme .posts-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .post {
    background: #444;
    border: 1px solid #666;
}

.dark-theme .post-header {
    background: #555;
    border-bottom: 1px solid #777;
}

.dark-theme .post-id {
    color: #f39c12;
}

.dark-theme .post-time {
    color: #aaa;
}

.dark-theme .post-content {
    color: #e0e0e0;
}

.dark-theme .post-image {
    border: 1px solid #666;
}

.dark-theme .form-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .form-row {
    border-bottom: 1px solid #555;
}

.dark-theme .form-row:last-child {
    border-bottom: none;
}

.dark-theme input[type="text"],
.dark-theme input[type="password"],
.dark-theme textarea {
    background: #444;
    border: 1px solid #666;
    color: #e0e0e0;
}

.dark-theme input[type="text"]:focus,
.dark-theme input[type="password"]:focus,
.dark-theme textarea:focus {
    border-color: #f39c12;
    outline: none;
}

.dark-theme .btn {
    background: #f4d03f;
    border: 2px solid #e67e22;
    color: #8b4513;
}

.dark-theme .btn:hover {
    background: #f39c12;
}

.dark-theme .new-thread-btn {
    background: #f4d03f;
    border: 2px solid #e67e22;
    color: #8b4513;
}

.dark-theme .new-thread-btn:hover {
    background: #f39c12;
}

.dark-theme .error {
    background: #4a2c2c;
    border: 1px solid #8b4513;
    color: #ff6b6b;
}

.dark-theme .success {
    background: #2c4a2c;
    border: 1px solid #4a8b4a;
    color: #6bff6b;
}

.dark-theme .motd {
    background: #333;
    border: 1px solid #555;
    color: #f4d03f;
}

.dark-theme .admin-panel {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .admin-panel h1,
.dark-theme .admin-panel h2 {
    color: #f4d03f;
}

.dark-theme .delete-btn {
    background: #8b4513;
    border: 2px solid #a0522d;
    color: #fff;
}

.dark-theme .delete-btn:hover {
    background: #a0522d;
}

.dark-theme .theme-toggle {
    background: #f4d03f;
    border: 2px solid #e67e22;
    color: #8b4513;
}

.dark-theme .theme-toggle:hover {
    background: #f39c12;
}

.dark-theme .boards-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .boards-container h2 {
    color: #f4d03f;
}

.dark-theme .board-item {
    background: #444;
    border: 1px solid #666;
}

.dark-theme .board-item:hover {
    background: #555;
}

.dark-theme .board-link {
    color: #e0e0e0;
}

.dark-theme .board-id {
    color: #f39c12;
}

.dark-theme .board-name {
    color: #f4d03f;
}

.dark-theme .board-desc {
    color: #aaa;
}

.dark-theme .motd-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .thread-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .thread-header {
    background: #444;
    border-bottom: 1px solid #666;
}

.dark-theme .thread-header h2 {
    color: #f4d03f;
}

.dark-theme .back-link {
    color: #f39c12;
}

.dark-theme .back-link:hover {
    color: #e67e22;
}

.dark-theme .threads-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .threads-list {
    background: #333;
}

.dark-theme .thread-item {
    background: #444;
    border: 1px solid #666;
}

.dark-theme .thread-item:hover {
    background: #555;
}

.dark-theme .thread-link {
    color: #f4d03f;
}

.dark-theme .thread-title {
    color: #e0e0e0;
}

.dark-theme .thread-info {
    color: #aaa;
}

.dark-theme .thread-file {
    border: 1px solid #666;
}

.dark-theme .thread-image {
    border: 1px solid #666;
}

.dark-theme .thread-description {
    color: #e0e0e0;
    background: #444;
    border: 1px solid #666;
    padding: 8px;
    margin: 5px 0;
}

.dark-theme .anonymous-id {
    color: #f39c12;
}

.dark-theme .new-thread-button {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .new-thread-container {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .thread-form {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .thread-form h2 {
    color: #f4d03f;
}

.dark-theme .markdown-help {
    background: #444;
    border: 1px solid #666;
}

.dark-theme .markdown-help h3 {
    color: #f4d03f;
}

.dark-theme .markdown-help ul {
    color: #e0e0e0;
}

.dark-theme .markdown-help li {
    color: #e0e0e0;
}

.dark-theme .markdown-help code {
    background: #555;
    color: #f39c12;
}

.dark-theme .cancel-btn {
    background: #8b4513;
    border: 2px solid #a0522d;
    color: #fff;
}

.dark-theme .cancel-btn:hover {
    background: #a0522d;
}

.dark-theme .post-message strong {
    color: #f4d03f;
}

.dark-theme .post-message em {
    color: #f39c12;
}

.dark-theme .post-message u {
    color: #e67e22;
}

.dark-theme .post-message del {
    color: #ff6b6b;
}

.dark-theme .post-message code {
    background: #555;
    color: #f39c12;
}

.dark-theme .post-message ul {
    color: #e0e0e0;
}

.dark-theme .post-message li {
    color: #e0e0e0;
}

.dark-theme .post-form {
    background: #333;
    border: 1px solid #555;
}

.dark-theme .form-row {
    border-bottom: 1px solid #555;
}

.dark-theme .form-row:last-child {
    border-bottom: none;
}

.dark-theme .title-input,
.dark-theme .description-input,
.dark-theme .message-input,
.dark-theme .file-input {
    background: #444;
    border: 1px solid #666;
    color: #e0e0e0;
}

.dark-theme .title-input:focus,
.dark-theme .description-input:focus,
.dark-theme .message-input:focus,
.dark-theme .file-input:focus {
    border-color: #f39c12;
    outline: none;
}

.dark-theme .description-input {
    background: #444 !important;
    border: 1px solid #666 !important;
    color: #e0e0e0 !important;
}

.dark-theme .description-input:focus {
    border-color: #f39c12 !important;
    outline: none !important;
}

.dark-theme .send-btn {
    background: #f4d03f;
    border: 2px solid #e67e22;
    color: #8b4513;
}

.dark-theme .send-btn:hover {
    background: #f39c12;
}

.dark-theme .file-info {
    color: #aaa;
}

.dark-theme .reply-link {
    color: #f39c12;
}

.dark-theme .reply-link:hover {
    color: #e67e22;
}

.dark-theme ::-webkit-scrollbar {
    width: 8px;
}

.dark-theme ::-webkit-scrollbar-track {
    background: #333;
}

.dark-theme ::-webkit-scrollbar-thumb {
    background: #666;
    border-radius: 4px;
}

.dark-theme ::-webkit-scrollbar-thumb:hover {
    background: #888;
}