/* General Body Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f0f2f5;
    color: #1c1e21;
    margin: 0;
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 250px;
    background-color: #ffffff;
    border-right: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    padding: 20px 0;
}

.sidebar-header {
    padding: 0 20px 20px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
}

.sidebar-header i {
    font-size: 24px;
    color: #007bff;
    margin-right: 10px;
}

.sidebar-header h2 {
    font-size: 18px;
    margin: 0;
    color: #333;
}

.sidebar-nav {
    list-style: none;
    padding: 20px 0;
    margin: 0;
    flex-grow: 1;
}

.sidebar-nav-item {
    margin-bottom: 5px;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #555;
    text-decoration: none;
    font-size: 16px;
    transition: background-color 0.2s, color 0.2s;
}

.sidebar-nav-link:hover {
    background-color: #f0f2f5;
    color: #007bff;
}

.sidebar-nav-link.active {
    background-color: #e6f2ff;
    color: #007bff;
    font-weight: 600;
    /* border-right: 3px solid #007bff; */
}

.sidebar-nav-link i {
    width: 20px;
    margin-right: 15px;
    text-align: center;
}

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

.main-header {
    background-color: #ffffff;
    padding: 15px 30px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-header h1 {
    font-size: 24px;
    margin: 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 14px;
}

.last-update {
    color: #666;
}

.main-content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.metric-card {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: #555;
}

.card-header i {
    font-size: 20px;
    margin-right: 12px;
}

.card-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.card-value {
    font-size: 36px;
    font-weight: 700;
    color: #1c1e21;
    margin-bottom: 5px;
    line-height: 1.2;
}

.card-value .unit {
    font-size: 18px;
    font-weight: 500;
    color: #666;
    margin-left: 5px;
}

.card-trend {
    font-size: 14px;
    color: #007bff;
    display: flex;
    align-items: center;
    margin-top: auto;
}

.footer {
    background-color: #ffffff;
    border-top: 1px solid #e0e0e0;
    padding: 15px 30px;
    text-align: center;
    font-size: 14px;
    color: #666;
}