body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f4f6f8;
    color: #1f2933;
}

.header {
    height: 60px;
    background-color: #1f2933;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    font-size: 18px;
    font-weight: 500;
}

.layout {
    display: grid;
    grid-template-columns: 220px 1fr 350px;
    height: calc(100vh - 60px);
}

.sidebar {
    background-color: #ffffff;
    border-right: 1px solid #e5e7eb;
    padding: 20px;
}

.nav-item {
    margin-bottom: 16px;
    font-weight: 500;
    cursor: pointer;
}

.nav-item.active {
    color: #2563eb;
}

.main-content {
    padding: 30px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.card-title {
    font-size: 14px;
    color: #6b7280;
}

.card-value {
    font-size: 28px;
    font-weight: 600;
    margin-top: 8px;
}

.telemetry-meta {
    margin-top: 20px;
    font-size: 14px;
    color: #6b7280;
}

.chat-panel {
    background: white;
    border-left: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 16px;
    border-bottom: 1px solid #e5e7eb;
    font-weight: 600;
}

.chat-messages {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    font-size: 14px;
}

.chat-input-area {
    display: flex;
    border-top: 1px solid #e5e7eb;
}

.chat-input-area input {
    flex: 1;
    border: none;
    padding: 12px;
    font-size: 14px;
    outline: none;
}

.chat-input-area button {
    border: none;
    background-color: #2563eb;
    color: white;
    padding: 0 20px;
    cursor: pointer;
}