/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0078d4;
    --primary-hover: #106ebe;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --background-color: #f5f5f5;
    --sidebar-bg: #2c3e50;
    --sidebar-text: #ecf0f1;
    --card-bg: #ffffff;
    --border-color: #dee2e6;
    --text-color: #333333;
    --text-muted: #6c757d;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.nav-menu {
    list-style: none;
    padding: 10px 0;
}

.nav-section {
    padding: 15px 20px 5px;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.5px;
}

.nav-item {
    padding: 12px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: background-color 0.2s;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-item.active {
    background-color: var(--primary-color);
}

.nav-icon {
    margin-right: 10px;
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 0;
}

.content-header {
    background-color: var(--card-bg);
    padding: 20px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.content-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.status-indicator {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.875rem;
}

.status-indicator.connected {
    background-color: var(--success-color);
    color: white;
}

.status-indicator.disconnected {
    background-color: var(--danger-color);
    color: white;
}

/* Page Content */
.page-content {
    padding: 30px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 600;
}

.stat-value.connected {
    color: var(--success-color);
}

.stat-value.disconnected {
    color: var(--danger-color);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.card h3 {
    font-size: 1.125rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

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

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

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Toolbar */
.toolbar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.search-input, .date-input {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
}

.search-input {
    min-width: 250px;
}

/* Tables */
.table-container {
    overflow-x: auto;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.data-table tr:hover {
    background-color: #f8f9fa;
}

.data-table .loading {
    text-align: center;
    color: var(--text-muted);
    padding: 30px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
    padding: 15px;
}

/* Forms */
.form {
    max-width: 500px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    font-size: 0.875rem;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

/* Settings */
.settings-section {
    margin-top: 15px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.setting-label {
    font-weight: 500;
}

.setting-value.connected {
    color: var(--success-color);
}

.setting-value.disconnected {
    color: var(--danger-color);
}

.help-text {
    color: var(--text-muted);
    margin-bottom: 15px;
}

.config-list {
    list-style: none;
    padding-left: 0;
}

.config-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.config-list code {
    background-color: #f8f9fa;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.875rem;
}

/* Message content */
.message-content {
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .main-content {
        margin-left: 0;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-input {
        min-width: auto;
        width: 100%;
    }
}