/* Chat Hub Styles - Dark Theme */

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-input: #1f2937;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --border: #27272a;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

#chat-app {
    display: flex;
    height: 100vh;
}

/* Sidebar */
#sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#user-info {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

#username {
    font-weight: 600;
    flex: 1;
}

#status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
}

#status-indicator.online {
    background: var(--success);
}

#status-indicator.offline {
    background: var(--error);
}

/* Sections */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px 8px;
}

.section-header h3 {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

#new-room-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
}

#new-room-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

#rooms-section {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

#rooms-list {
    list-style: none;
    overflow-y: auto;
    flex: 1;
}

#rooms-list li {
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    border-left: 3px solid transparent;
}

#rooms-list li:hover {
    background: var(--bg-tertiary);
}

#rooms-list li.active {
    background: var(--bg-tertiary);
    border-left-color: var(--accent);
}

#rooms-list li .room-icon {
    font-size: 18px;
}

#rooms-list li .room-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#rooms-list li .unread-badge {
    background: var(--accent);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
}

/* Online Users */
#online-section {
    border-top: 1px solid var(--border);
    max-height: 200px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

#online-section h3 {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    padding: 12px 16px 8px;
}

#online-users {
    list-style: none;
    overflow-y: auto;
    padding: 0 16px 12px;
}

#online-users li {
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

#online-users li::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
}

/* Main Chat Area */
#chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

#chat-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

#room-name {
    font-size: 18px;
    font-weight: 600;
}

#room-info {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Messages */
#messages-container {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

#messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.welcome-message {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
}

.welcome-message code {
    background: var(--bg-input);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 80%;
}

.message.own {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.message.agent .message-avatar {
    background: var(--accent);
}

.message-content {
    background: var(--bg-secondary);
    padding: 10px 14px;
    border-radius: 12px;
    border-top-left-radius: 4px;
}

.message.own .message-content {
    background: var(--accent);
    border-top-left-radius: 12px;
    border-top-right-radius: 4px;
}

.message-header {
    display: flex;
    gap: 8px;
    align-items: baseline;
    margin-bottom: 4px;
}

.message-username {
    font-weight: 600;
    font-size: 14px;
}

.message.own .message-username {
    display: none;
}

.message-time {
    font-size: 11px;
    color: var(--text-muted);
}

.message.own .message-time {
    color: rgba(255, 255, 255, 0.7);
}

.message-text {
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
}

.message-text code {
    background: rgba(0, 0, 0, 0.2);
    padding: 1px 4px;
    border-radius: 3px;
    font-family: monospace;
    font-size: 13px;
}

/* System Message */
.system-message {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 8px;
}

/* Typing Indicator */
#typing-indicator {
    padding: 8px 20px;
    color: var(--text-secondary);
    font-size: 13px;
    font-style: italic;
}

#typing-indicator.hidden {
    display: none;
}

/* Input Area */
#input-area {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
    background: var(--bg-secondary);
}

#message-input {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 14px;
    resize: none;
    font-family: inherit;
    max-height: 120px;
}

#message-input:focus {
    outline: none;
    border-color: var(--accent);
}

#message-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#message-input::placeholder {
    color: var(--text-muted);
}

#send-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

#send-btn:hover:not(:disabled) {
    background: var(--accent-hover);
}

#send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: 12px;
    width: 400px;
    max-width: 90%;
}

.modal-content h3 {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

.form-actions button {
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
}

.form-actions button[type="button"] {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.form-actions button[type="submit"] {
    background: var(--accent);
    border: none;
    color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    #sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        z-index: 100;
        transition: left 0.3s;
    }

    #sidebar.open {
        left: 0;
    }

    .message {
        max-width: 90%;
    }
}