/* ==============================================
   Main Layout - Desktop-first Boxed Design
   ============================================== */

#app {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
}

/* ==============================================
   Boxed Page Container
   ============================================== */

.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    min-height: calc(100vh - 80px);
}

.page-container-fluid {
    max-width: 100%;
    background: transparent;
    border: none;
    padding: 0;
}

.page-container-lg {
    max-width: 1400px;
}

.page-container-sm {
    max-width: 900px;
}

/* ==============================================
   Page Header - Clean & Modern
   ============================================== */

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.page-header-content {
    flex: 1;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px 0;
    letter-spacing: -0.3px;
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-tertiary);
    margin: 0;
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* ==============================================
   Page Sections - Cards Style
   ============================================== */

.page-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.page-section:last-child {
    margin-bottom: 0;
}

.page-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.page-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.page-section-title svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* ==============================================
   Content Grid Layouts
   ============================================== */

.content-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.content-grid-2 {
    grid-template-columns: 1fr 1fr;
}

.content-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.content-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Sidebar layout */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
}

.content-main {
    min-width: 0;
}

.content-sidebar {
    min-width: 0;
}

/* ==============================================
   View Modes
   ============================================== */

.view-toggle {
    display: flex;
    gap: 2px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: 3px;
}

.view-toggle-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: transparent;
    border: none;
}

.view-toggle-btn:hover {
    color: var(--text-secondary);
}

.view-toggle-btn.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.view-toggle-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* ==============================================
   Grid Views
   ============================================== */

.grid-view {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-view-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-view-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-view-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-view-5 {
    grid-template-columns: repeat(5, 1fr);
}

/* ==============================================
   List View
   ============================================== */

.list-view {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ==============================================
   Toolbar - Search + Filters
   ============================================== */

.page-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.page-toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.page-toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ==============================================
   Responsive - Desktop First
   ============================================== */

@media (max-width: 1400px) {
    .grid-view-5 { grid-template-columns: repeat(4, 1fr); }
    .content-grid-4 { grid-template-columns: repeat(3, 1fr); }
}

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

    .content-sidebar {
        order: -1;
    }

    .grid-view-5 { grid-template-columns: repeat(3, 1fr); }
    .grid-view-4 { grid-template-columns: repeat(3, 1fr); }
    .content-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .content-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
    .grid-view-5 { grid-template-columns: repeat(2, 1fr); }
    .grid-view-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-view-3 { grid-template-columns: repeat(2, 1fr); }
    .content-grid-3 { grid-template-columns: 1fr; }
    .content-grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }

    .page-container {
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg);
    }

    .page-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .page-header-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .page-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .page-toolbar-left,
    .page-toolbar-right {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .grid-view-5,
    .grid-view-4,
    .grid-view-3,
    .grid-view-2 {
        grid-template-columns: 1fr;
    }
}