.dashboard-root {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: 100vh;
    width: 100vw;
}

/* Sidebar - Left Column */
.sidebar {
    grid-column: 1;
    grid-row: 1;
    background-color: var(--color-bg-1);
    border-right: var(--border-width) solid var(--color-bg-3);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    z-index: 10;
}

/* Main Area - Right */
.main-viewport {
    grid-column: 2;
    grid-row: 1;
    overflow-y: auto;
    background-color: var(--color-bg-0);
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: var(--border-width) solid var(--color-bg-3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-area h1 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-accent);
}

/* Mobile notice */
@media (max-width: 900px) {
    .dashboard-root {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        overflow-y: auto;
    }
    .sidebar {
        grid-row: 1;
        border-right: none;
        border-bottom: var(--border-width) solid var(--color-bg-3);
    }
    .main-viewport {
        grid-column: 1;
        grid-row: 2;
        height: auto;
    }
}