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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.navbar {
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #667eea;
}

.user-info {
    color: #ccc;
    font-size: 0.9rem;
}

.api-docs-link,
.settings-link {
    color: #667eea;
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 600;
}

.api-docs-link:hover,
.settings-link:hover {
    color: #5568d3;
    text-decoration: underline;
}

.logout-btn {
    background: #e74c3c;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s;
}

.logout-btn:hover {
    background: #c0392b;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-box {
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: #667eea;
}

.subtitle {
    text-align: center;
    color: #999;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.form-group input {
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 5px rgba(102, 126, 234, 0.3);
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border: 1px solid #f5c6cb;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 0.5rem;
}

.btn-small:hover {
    background: #2980b9;
}

.btn-danger {
    background: #e74c3c;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-copy {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    margin-left: 0.5rem;
}

.dashboard {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.dashboard-header {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.dashboard-header h1 {
    color: #667eea;
    margin-bottom: 0.5rem;
}

.dashboard-header p {
    color: #666;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.card h3 {
    color: #667eea;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #999;
    font-size: 0.9rem;
}

.status-online {
    color: #27ae60;
    font-weight: bold;
}

.tokens-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    color: #667eea;
}

.tokens-table {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background: #f8f9fa;
}

table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #ddd;
}

table td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

table tbody tr:hover {
    background: #f8f9fa;
}

.token-value {
    background: #f0f0f0;
    padding: 0.3rem 0.6rem;
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.85rem;
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-active {
    background: #d4edda;
    color: #155724;
}

.badge-inactive {
    background: #f8d7da;
    color: #721c24;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.close {
    color: #aaa;
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

.chat-container {
    display: flex;
    height: calc(100vh - 80px);
    gap: 0;
    background: white;
}

.chat-sidebar {
    width: 250px;
    background: #f8f9fa;
    border-right: 1px solid #ddd;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid #ddd;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h3 {
    margin: 0;
    color: #667eea;
    font-size: 1rem;
}

.btn-new-chat {
    background: #667eea;
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
}

.btn-new-chat:hover {
    background: #5568d3;
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.conversation-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.conversation-item:hover {
    background: #e8eaf6;
    border-left-color: #667eea;
}

.conv-title {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
}

.btn-delete-conv {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0;
    margin-left: 0.5rem;
}

.btn-delete-conv:hover {
    color: #e74c3c;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    padding: 1rem;
    border-bottom: 1px solid #ddd;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h2 {
    margin: 0;
    color: #667eea;
    font-size: 1.2rem;
}

.model-selector {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.model-selector label {
    font-weight: 600;
    font-size: 0.9rem;
}

.model-selector select {
    padding: 0.4rem 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #999;
}

.message {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    max-width: 80%;
    animation: slideIn 0.3s ease-in;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-user {
    align-self: flex-end;
}

.message-assistant {
    align-self: flex-start;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.3rem;
}

.message-role {
    font-size: 0.75rem;
    color: #999;
    font-weight: 600;
    text-transform: uppercase;
}

.model-badge {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.6rem;
    background: #e8eaf6;
    border-radius: 12px;
    font-size: 0.7rem;
    color: #667eea;
    font-weight: 600;
    border: 1px solid #d1d5f0;
}

.model-icon {
    font-size: 0.85rem;
}

.model-name {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.message-content {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    line-height: 1.5;
    word-wrap: break-word;
}

.message-user .message-content {
    background: #667eea;
    color: white;
}

.message-assistant .message-content {
    background: #f0f0f0;
    color: #333;
}

.message-assistant .message-content code {
    background: #e0e0e0;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: monospace;
}

.message-assistant .message-content pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    margin: 0.5rem 0;
}

.message-assistant .message-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.message-time {
    font-size: 0.7rem;
    color: #999;
}

.chat-input-area {
    padding: 1rem;
    border-top: 1px solid #ddd;
    background: white;
}

.input-options {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #eee;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.checkbox-label:hover {
    color: #333;
}

.image-preview {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: #f0f0f0;
    border-radius: 4px;
    margin-bottom: 0.75rem;
}

.image-preview img {
    max-width: 100px;
    max-height: 100px;
    border-radius: 4px;
    object-fit: cover;
}

.btn-remove-image {
    background: none;
    border: none;
    color: #e74c3c;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0;
    margin-left: auto;
}

.btn-remove-image:hover {
    color: #c0392b;
}

.btn-attach {
    padding: 0.75rem 1rem;
    background: #27ae60;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-attach:hover {
    background: #229954;
    transform: translateY(-2px);
}

.mcp-tools-bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.mcp-tools-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
}

.mcp-icon {
    font-size: 1.2rem;
}

.mcp-label {
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mcp-tools-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.mcp-tool-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: #333;
    animation: slideIn 0.3s ease-out;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.mcp-tool-icon {
    font-size: 1rem;
    min-width: 1.2rem;
    text-align: center;
}

.mcp-tool-name {
    color: #667eea;
    font-weight: 600;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mcp-tool-time {
    color: #999;
    font-size: 0.75rem;
    margin-left: auto;
    min-width: 30px;
    text-align: right;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.input-wrapper {
    display: flex;
    gap: 0.5rem;
}

#messageInput {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
}

#messageInput:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 5px rgba(102, 126, 234, 0.3);
}

.btn-send {
    padding: 0.75rem 1.5rem;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-send:hover {
    background: #5568d3;
    transform: translateY(-2px);
}

.typing-indicator {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    height: 1.2rem;
}

.typing-indicator span {
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
    background: #667eea;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.5;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-0.6rem);
    }
}

.status-message {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: #f0f0f0;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #666;
    animation: slideIn 0.3s ease-in;
}

.status-icon {
    font-size: 1.2rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    padding: 0.75rem;
    background: #f8d7da;
    color: #721c24;
    border-radius: 4px;
    border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    table th, table td {
        padding: 0.5rem;
    }
    
    .chat-container {
        flex-direction: column;
    }
    
    .chat-sidebar {
        width: 100%;
        height: 150px;
        border-right: none;
        border-bottom: 1px solid #ddd;
    }
    
    .message {
        max-width: 95%;
    }
}