:root {
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --text-primary: #000000;
    --text-secondary: #000000;
    --sidebar-bg: #000000;
    --sidebar-text: #ffffff;
    --sidebar-text-hover: #00fbff;
    --sidebar-border: #000000;
    --accent: #0000ff;
    --accent-hover: #00008b;
    --border-color: #000000;
    --input-bg: #ffffff;
    --shadow: rgba(0,0,0,0.1);
    --modal-overlay: rgba(0,0,0,0.5);
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #000000;
    --text-primary: #ffffff;
    --text-secondary: #ffffff;
    --sidebar-bg: #000000;
    --sidebar-text: #ffffff;
    --sidebar-text-hover: #00fbff;
    --sidebar-border: #ffffff;
    --accent: #00fbff;
    --accent-hover: #00cccc;
    --border-color: #ffffff;
    --input-bg: #2a2a2a;
    --shadow: rgba(0,0,0,0.5);
    --modal-overlay: rgba(0,0,0,0.8);
}

body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

#layout-container {
    display: flex;
    min-height: 100vh;
}

#sidebar {
    width: 200px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: 20px;
    border-right: 1px solid var(--sidebar-border);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: left 0.3s ease;
    display: flex;
    flex-direction: column;
}

#menu {
    flex-grow: 1;
}

#sidebar-footer {
    padding-top: 10px;
    margin-top: auto;
    border-top: 1px solid var(--sidebar-border);
    display: flex;
    justify-content: center;
}

.theme-icon-btn {
    background: none;
    border: 1px solid var(--sidebar-border);
    color: var(--sidebar-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.theme-icon-btn:hover {
    background: var(--sidebar-text-hover);
    color: var(--sidebar-bg);
}

#mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1100;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    border: 1px solid var(--sidebar-border);
    padding: 10px;
    border-radius: 4px;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    #sidebar {
        position: fixed;
        left: -240px;
        z-index: 1050;
        width: 200px;
    }

    #sidebar.active {
        left: 0;
    }

    #sidebar #menu {
        margin-top: 50px;
    }

    #mobile-menu-toggle {
        display: block;
    }

    #app {
        padding-top: 60px;
    }
}

#sidebar #menu ul {
    list-style: none;
    padding: 0;
}

#sidebar #menu li {
    margin-bottom: 10px;
}

#sidebar #menu a, .menu-btn {
    color: var(--sidebar-text);
    text-decoration: none;
    font-weight: bold;
    background: none;
    border: none;
    padding: 0;
    font-size: 1.2em;
    font-family: inherit;
    cursor: pointer;
    display: block;
    width: 100%;
    text-align: left;
    margin-bottom: 5px;
}

#sidebar #menu a:hover, .menu-btn:hover {
    color: var(--sidebar-text-hover);
}

#auth-container {
    margin-top: 30px;
    padding-top: 20px;
}

#auth-container button {
    width: 100%;
    margin-bottom: 10px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    border: 1px solid var(--sidebar-border);
    cursor: pointer;
    transition: background-color 0.2s;
}

#auth-container button:hover {
    background-color: var(--sidebar-text-hover);
}

#welcome-msg {
    margin-bottom: 15px;
    font-size: 0.9em;
    color: var(--sidebar-text);
    word-break: break-all;
}

#app {
    flex-grow: 1;
    padding: 20px;
    max-width: 1000px;
}

header {
    text-align: center;
    margin-bottom: 20px;
}

#auth-forms, #profile-section {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow);
    margin-bottom: 20px;
}

#profile-display {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    padding: 10px;
    background: var(--bg-primary);
    border-radius: 4px;
}

#profile-icon-view {
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--text-primary);
}

.response-item small, .post-meta small {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 5px;
    color: var(--text-secondary);
}

.post-author-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--border-color);
}

.author-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    font-weight: bold;
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
    text-decoration: none;
}

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

.author-name {
    font-weight: bold;
}

.edit-btn, .delete-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 2px 8px;
    font-size: 0.8em;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.2s;
}

.edit-btn:hover {
    opacity: 1;
    border-color: var(--accent);
    color: var(--accent);
}

.delete-btn:hover {
    opacity: 1;
    border-color: #ff4444;
    color: #ff4444;
}

.post-meta {
    margin-bottom: 10px;
    padding-bottom: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.post-meta .btn-group {
    display: flex;
    gap: 5px;
}

.post-body {
    margin: 10px 0;
}

.post-media {
    margin-top: 10px;
}

.post-body code {
    background-color: var(--input-bg);
    padding: 2px 4px;
    border-radius: 3px;
    font-family: monospace;
}

.post-body a {
    color: var(--accent);
    text-decoration: underline;
}

.formatting-toolbar {
    display: flex;
    gap: 5px;
    margin-bottom: 5px;
}

.formatting-toolbar button {
    padding: 2px 8px;
    font-size: 0.8em;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
}

.formatting-toolbar button:hover {
    background-color: var(--accent);
    color: white;
}

.formatting-hint {
    margin-bottom: -5px;
    opacity: 0.7;
}

form label {
    font-weight: bold;
    font-size: 0.9em;
    margin-top: 5px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

input, textarea, select {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--input-bg);
    color: var(--text-primary);
}

button {
    padding: 10px;
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    opacity: 0.8;
}

.loading-indicator {
    padding: 20px;
    text-align: center;
    font-style: italic;
    color: var(--text-secondary);
}

.topic-item {
    background: var(--bg-secondary);
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 4px;
    box-shadow: 0 2px 4px var(--shadow);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.topic-item:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow);
}

.response-item {
    background: var(--bg-secondary);
    padding: 10px;
    margin-bottom: 5px;
    border-left: 3px solid var(--accent);
    transition: margin-left 0.3s ease;
}

.post-actions {
    margin-top: 10px;
    display: flex;
    justify-content: flex-end;
}

.reply-btn {
    padding: 2px 10px;
    font-size: 0.8em;
    background-color: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.reply-btn:hover {
    background-color: var(--accent);
    color: white;
}

#cancel-reply {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

#cancel-reply:hover {
    background-color: #ff4444;
    color: white;
    border-color: #ff4444;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.btn-primary {
    background-color: var(--accent) !important;
    color: white !important;
}

.btn-primary:hover {
    background-color: var(--accent-hover) !important;
}

.thread-header {
    position: sticky;
    top: 0;
    background-color: var(--bg-primary);
    padding: 10px 0;
    z-index: 100;
    margin-bottom: 20px;
}

.thread-header h2 {
    margin: 10px 0 0 0;
}

#modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--modal-overlay);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.thread-container {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.thread-main {
    flex-grow: 1;
    min-width: 0;
}


.modal-content {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 5px 15px var(--shadow);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.inline-reply-container {
    margin-top: 10px;
}

.inline-reply-form {
    background: var(--bg-primary);
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-top: 5px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.inline-reply-form .replying-to {
    font-size: 0.8em;
    font-style: italic;
    opacity: 0.8;
}

.inline-form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.inline-form-actions .button-group {
    display: flex;
    gap: 5px;
}

.btn-cancel {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 5px 15px;
    font-size: 0.9em;
}

.btn-cancel:hover {
    background-color: #ff4444;
    color: white;
    border-color: #ff4444;
}

.auth-toggle-text {
    margin-top: 15px;
    font-size: 0.9em;
    text-align: center;
}

.link-btn {
    background: none;
    border: none;
    color: var(--accent);
    text-decoration: underline;
    cursor: pointer;
    padding: 0;
    font-size: inherit;
}

.link-btn:hover {
    color: var(--accent-hover);
}

/* Media Gallery */
.load-more-btn {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    background-color: var(--bg-secondary);
    color: var(--accent);
    border: 1px dashed var(--accent);
    cursor: pointer;
    font-size: 0.9em;
}

.load-more-btn:hover {
    background-color: var(--accent);
    color: white;
}

.images-grid, .audio-grid, .movies-grid, .users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.user-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s;
}

.user-item:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px var(--shadow);
}

.user-item img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 10px;
    border: 2px solid var(--accent);
}

.user-item .user-name {
    font-weight: bold;
    font-size: 1.1em;
    margin-bottom: 5px;
}

.user-item .last-seen {
    font-size: 0.8em;
    color: var(--text-secondary);
    opacity: 0.8;
}

#user-topics-container {
    margin-top: 30px;
    padding-top: 20px;
}

#user-topics-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mini-topic {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background: var(--bg-secondary);
}

.mini-topic:hover {
    border-color: var(--accent);
}

.mini-topic h4 {
    margin: 0 0 5px 0;
}

.mini-topic small {
    color: var(--text-secondary);
    opacity: 0.7;
}

.gallery-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s;
    display: flex;
    flex-direction: column;
}

.audio-item, .movie-item {
    padding: 10px;
}

.gallery-item:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px var(--shadow);
}

.gallery-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

#response-form {
    background: var(--bg-secondary);
    padding: 20px;
    margin-top: 20px;
}

#response-form h3 {
    margin-top: 0;
}

#response-form textarea {
    width: 100%;
    box-sizing: border-box;
    resize: vertical;
}

#response-form button[type="submit"] {
    align-self: flex-end;
    padding: 10px 30px;
    font-weight: bold;
    margin-top: 10px;
}

#replying-to-indicator {
    background-color: var(--accent);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#replying-to-indicator button {
    background: white;
    color: var(--accent);
    padding: 2px 8px;
    margin-left: 10px;
}