/**
 * ============================================
 * LAYOUT CSS - Grid Layout & Main Containers
 * Dashboard V3 - Market Analysis
 * ============================================
 */

/* Main Dashboard Grid */
.dashboard {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr var(--section-nav-width);
    min-height: 100vh;
    width: 100%;
    transition: grid-template-columns 0.3s ease;
}

/* Sidebar Collapsed Grid */
.dashboard.sidebar-collapsed {
    grid-template-columns: var(--sidebar-collapsed-width) 1fr var(--section-nav-width);
}

/* No Section Nav (Advisor, Sniper, etc.) */
.dashboard.no-section-nav {
    grid-template-columns: var(--sidebar-width) 1fr;
}
.dashboard.no-section-nav .section-nav {
    display: none;
}

/* Hide page header when advisor is active (advisor has its own header) */
.dashboard.advisor-mode .page-header {
    display: none;
}
.dashboard.advisor-mode .main-content {
    padding: 0;
}

/* Both collapsed + no section nav */
.dashboard.sidebar-collapsed.no-section-nav {
    grid-template-columns: var(--sidebar-collapsed-width) 1fr;
}

/* Sidebar Container */
.sidebar {
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    z-index: var(--z-sticky);
}

/* Main Content Container */
.main-content {
    position: relative;
    background: var(--color-bg-primary);
    padding: var(--space-lg);
    overflow-y: auto;
    min-height: 100vh;
}

/* Section Nav Container */
.section-nav {
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: var(--space-md);
    z-index: var(--z-sticky);
}

/* Block Container (for content sections) */
.block {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--space-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

.block-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.block-body {
    padding: var(--space-lg);
}

/* Section Content */
.section-content {
    min-height: 400px;
    overflow-x: hidden;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    text-align: center;
    color: var(--color-text-muted);
    min-height: 400px;
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: var(--space-lg);
}

.empty-state h2 {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.empty-state p {
    margin-bottom: var(--space-sm);
}

/* Loading Placeholder */
.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    color: var(--color-text-muted);
    gap: var(--space-md);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* No Data State */
.no-data {
    padding: var(--space-xl);
    text-align: center;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Mobile Overlay */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-overlay.visible {
    opacity: 1;
    visibility: visible;
}