.app-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
}

.app-layout-body {
    display: flex;
    flex: 1;
    min-height: 0;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-slow);
}

.page-content {
    flex: 1;
    padding: var(--space-6) var(--space-8) var(--space-12);
    max-width: 1200px;
}

.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.flex-center { align-items: center; justify-content: center; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }