/* ==========================================================================
   ENTERPRISE B2B SAAS DESIGN SYSTEM - LAYOUT & APP SHELL
   ========================================================================== */

#wwd-app {
    display: flex;
    min-height: 100vh;
    background-color: var(--wwd-bg-root);
    color: var(--wwd-text-primary);
    font-family: var(--wwd-font-sans);
    font-size: var(--wwd-text-body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Sidebar Layout */
.wwd-sidebar {
    width: 240px;
    flex-shrink: 0;
    background-color: var(--wwd-bg-panel);
    border-right: 1px solid var(--wwd-border-subtle);
    display: flex;
    flex-direction: column;
    z-index: 30;
    transition: width 0.2s ease;
}

.wwd-sidebar-header {
    height: 56px;
    padding: 0 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--wwd-border-subtle);
}

.wwd-sidebar-logo {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--wwd-brand-primary), #818cf8);
    border-radius: var(--wwd-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
}

.wwd-sidebar-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--wwd-text-primary);
    letter-spacing: -0.01em;
}

.wwd-sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow-y: auto;
}

.wwd-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--wwd-radius-md);
    color: var(--wwd-text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.15s ease;
    border: 1px solid transparent;
}

.wwd-nav-item:hover {
    background-color: var(--wwd-bg-surface-hover);
    color: var(--wwd-text-primary);
}

.wwd-nav-item.active {
    background-color: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.25);
    color: #ffffff;
    font-weight: 600;
}

.wwd-nav-item i, .wwd-nav-item svg {
    width: 18px;
    height: 18px;
    opacity: 0.8;
}

.wwd-nav-item.active i, .wwd-nav-item.active svg {
    color: var(--wwd-brand-light);
    opacity: 1;
}

/* Main Content Area */
.wwd-main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

/* Header Navbar */
.wwd-top-header {
    height: 56px;
    background-color: var(--wwd-bg-panel);
    border-bottom: 1px solid var(--wwd-border-subtle);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 20;
}

.wwd-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--wwd-text-muted);
}

.wwd-breadcrumbs span.active {
    color: var(--wwd-text-primary);
    font-weight: 600;
}

.wwd-top-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Search Bar (Linear-style) */
.wwd-global-search {
    position: relative;
    display: flex;
    align-items: center;
}

.wwd-global-search input {
    width: 260px;
    height: 32px;
    background-color: var(--wwd-bg-root);
    border: 1px solid var(--wwd-border-subtle);
    border-radius: var(--wwd-radius-md);
    padding: 0 2rem 0 0.75rem;
    color: var(--wwd-text-primary);
    font-size: 0.75rem;
    transition: all 0.15s ease;
}

.wwd-global-search input:focus {
    outline: none;
    border-color: var(--wwd-brand-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.wwd-search-kbd {
    position: absolute;
    right: 0.5rem;
    padding: 0.1rem 0.3rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    font-size: 0.65rem;
    color: var(--wwd-text-muted);
    font-family: var(--wwd-font-mono);
    pointer-events: none;
}

/* Page Body Container */
.wwd-page-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}