/* ========================================
   DASHBOARD GRID SYSTEM
   12-column responsive layout
   ======================================== */

.dashboard-container {
    display: grid;
    grid-template-columns: 2fr 6fr 4fr;
    grid-template-areas: "sidebar main tools";
    gap: 16px;
    height: calc(100vh - 8vh); /* Subtract top bar height */
    padding: 16px;
    overflow: hidden;
}

.dashboard-sidebar {
    grid-area: sidebar;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    padding-right: 8px;
}

.dashboard-main {
    grid-area: main;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    padding: 0 8px;
}

.dashboard-tools {
    grid-area: tools;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    padding-left: 8px;
}

/* ========================================
   RESPONSIVE BREAKPOINTS
   ======================================== */

/* Tablet: collapse to 2 columns */
@media (max-width: 1200px) {
    .dashboard-container {
        grid-template-columns: 3fr 9fr;
        grid-template-areas:
            "sidebar main"
            "sidebar tools";
        grid-template-rows: 1fr auto;
    }

    .dashboard-tools {
        grid-area: tools;
        max-height: 400px;
    }
}

/* Mobile: single column */
@media (max-width: 768px) {
    .dashboard-container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "sidebar"
            "main"
            "tools";
        height: auto;
        gap: 12px;
        padding: 12px;
    }

    .dashboard-sidebar,
    .dashboard-main,
    .dashboard-tools {
        overflow-y: visible;
        padding: 0;
    }
}

/* ========================================
   PANEL CARDS
   Common styling for dashboard panels
   ======================================== */

.dashboard-panel {
    background: var(--mud-palette-surface);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.dashboard-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--mud-palette-divider);
}

.dashboard-panel-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

.dashboard-panel-body {
    overflow-y: auto;
}

/* ========================================
   SCROLL BEHAVIOR
   ======================================== */

.dashboard-sidebar::-webkit-scrollbar,
.dashboard-main::-webkit-scrollbar,
.dashboard-tools::-webkit-scrollbar,
.dashboard-panel-body::-webkit-scrollbar {
    width: 6px;
}

.dashboard-sidebar::-webkit-scrollbar-track,
.dashboard-main::-webkit-scrollbar-track,
.dashboard-tools::-webkit-scrollbar-track,
.dashboard-panel-body::-webkit-scrollbar-track {
    background: transparent;
}

.dashboard-sidebar::-webkit-scrollbar-thumb,
.dashboard-main::-webkit-scrollbar-thumb,
.dashboard-tools::-webkit-scrollbar-thumb,
.dashboard-panel-body::-webkit-scrollbar-thumb {
    background: var(--mud-palette-divider);
    border-radius: 3px;
}

.dashboard-sidebar::-webkit-scrollbar-thumb:hover,
.dashboard-main::-webkit-scrollbar-thumb:hover,
.dashboard-tools::-webkit-scrollbar-thumb:hover,
.dashboard-panel-body::-webkit-scrollbar-thumb:hover {
    background: var(--mud-palette-action-disabled);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.dashboard-full-height {
    height: 100%;
}

.dashboard-spacer {
    flex: 1;
}

.dashboard-sticky-top {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--mud-palette-background);
}

/* ========================================
   ANIMATION
   ======================================== */

.dashboard-panel {
    animation: dashboardFadeIn 0.3s ease-in-out;
}

@keyframes dashboardFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}