:root {
    --bg-main: #06090f;
    --bg-panel: #0d1117;
    --bg-input: #161b22;
    --border-color: #21262d;
    
    --text-primary: #c9d1d9;
    --text-muted: #8b949e;
    
    --accent-cyan: #58a6ff;
    --accent-magenta: #ff7b72;
    --accent-green: #3fb950;
    --accent-yellow: #d29922;
    --accent-blue: #1f6feb;
    
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow-x: hidden;
    padding: 1rem;
    line-height: 1.4;
}

.app-container {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Main Panel Layout Grid */
.hpc-grid {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 1rem;
}

@media (max-width: 1100px) {
    .hpc-grid {
        grid-template-columns: 1fr;
    }
}