/* -------------------------------------------------------------------------- */
/* 4. MACRO LAYOUT (Header & Grid)                                            */
/* -------------------------------------------------------------------------- */

/* --- HEADER --- */
header {
    padding: 0 20px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-dim);
    display: flex; justify-content: space-between; align-items: center;
    height: 60px; flex-shrink: 0;
}

h1 {
    font-size: 1.5rem; letter-spacing: 2px; color: var(--brand-primary);
    display: flex; align-items: center; gap: 10px;
}

.toolbar { display: flex; gap: 10px; align-items: center; }

/* --- DASHBOARD GRID --- */
.dashboard-container {
    flex: 1;
    padding: var(--grid-padding);
    display: grid;
    grid-template-columns: repeat(var(--grid-cols, 10), minmax(0, 1fr));
    grid-template-rows: repeat(var(--grid-rows, 6), minmax(0, 1fr));
    gap: var(--gap-size);
    position: relative;
    transition: gap 0.3s, padding 0.3s;
}

.grid-lines {
    position: absolute;
    top: var(--grid-padding); left: var(--grid-padding);
    right: var(--grid-padding); bottom: var(--grid-padding);
    display: grid;
    grid-template-columns: repeat(var(--grid-cols, 10), 1fr);
    grid-template-rows: repeat(var(--grid-rows, 6), 1fr);
    gap: var(--gap-size);
    pointer-events: none; z-index: 0; opacity: 0; transition: opacity 0.3s;
}
.dashboard-container.edit-mode .grid-lines { opacity: 1; }

.grid-cell {
    border: 1px dashed var(--border-dim);
    border-radius: var(--radius);
    opacity: 0.5;
}

/* Responsive Fallback */
@media (max-width: 768px) {
    .dashboard-container { display: flex; flex-direction: column; height: auto; }
    .grid-lines { display: none; }
}