/* ==============================================================================
   Vision Jeunesse Nouvelle (VJN) — Enterprise Design System
   Color Palette: Deep Navy (#0f2942), Cobalt Blue (#1e5085), Emerald (#198754)
   ============================================================================== */

:root {
    --vjn-navy: #0f2942;
    --vjn-navy-dark: #0a1b2d;
    --vjn-navy-light: #183c5f;
    --vjn-blue: #1e5085;
    --vjn-blue-soft: #eaf1f8;
    --vjn-accent-green: #198754;
    --vjn-accent-amber: #f59e0b;
    --vjn-accent-red: #dc2626;
    --vjn-bg-surface: #f8fafc;
    --vjn-card-bg: #ffffff;
    --vjn-text-main: #1e293b;
    --vjn-text-muted: #64748b;
    --vjn-border-color: #e2e8f0;
    --vjn-sidebar-width: 260px;
    --vjn-topbar-height: 64px;
    --vjn-radius: 10px;
    --vjn-shadow-sm: 0 1px 3px rgba(15, 41, 66, 0.06);
    --vjn-shadow-md: 0 4px 12px rgba(15, 41, 66, 0.08);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--vjn-text-main);
    background-color: var(--vjn-bg-surface);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* ------------------------------------------------------------------------------
   App Layout Structure
   ------------------------------------------------------------------------------ */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.app-sidebar {
    width: var(--vjn-sidebar-width);
    background-color: var(--vjn-navy);
    color: #ffffff;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.25s ease-in-out;
}

.sidebar-brand {
    height: var(--vjn-topbar-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    background-color: var(--vjn-navy-dark);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand a {
    color: #ffffff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.menu-header {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #94a3b8;
    padding: 0.8rem 1.5rem 0.3rem;
    font-weight: 600;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.65rem 1.5rem;
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.15s ease;
    border-left: 3px solid transparent;
}

.menu-item:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.06);
}

.menu-item.active {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.12);
    border-left-color: var(--vjn-accent-green);
}

.menu-item i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

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

.app-header {
    height: var(--vjn-topbar-height);
    background-color: #ffffff;
    border-bottom: 1px solid var(--vjn-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.75rem;
    position: sticky;
    top: 0;
    z-index: 990;
    box-shadow: var(--vjn-shadow-sm);
}

.app-content {
    flex: 1;
    padding: 1.75rem;
}

/* ------------------------------------------------------------------------------
   Enterprise Cards & KPI Widgets
   ------------------------------------------------------------------------------ */
.card-vjn {
    background-color: var(--vjn-card-bg);
    border: 1px solid var(--vjn-border-color);
    border-radius: var(--vjn-radius);
    box-shadow: var(--vjn-shadow-sm);
    margin-bottom: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.card-vjn:hover {
    box-shadow: var(--vjn-shadow-md);
}

.card-header-vjn {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--vjn-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 1rem;
    color: var(--vjn-navy);
}

.card-body-vjn {
    padding: 1.25rem;
}

.stat-widget {
    background: #ffffff;
    border: 1px solid var(--vjn-border-color);
    border-radius: var(--vjn-radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--vjn-shadow-sm);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.primary {
    background-color: var(--vjn-blue-soft);
    color: var(--vjn-blue);
}

.stat-icon.success {
    background-color: #e8f5e9;
    color: var(--vjn-accent-green);
}

.stat-icon.warning {
    background-color: #fffbeb;
    color: var(--vjn-accent-amber);
}

.stat-icon.danger {
    background-color: #fef2f2;
    color: var(--vjn-accent-red);
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--vjn-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--vjn-navy);
    line-height: 1.2;
}

/* ------------------------------------------------------------------------------
   Data Tables & Badges
   ------------------------------------------------------------------------------ */
.table-vjn {
    width: 100%;
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.table-vjn th {
    background-color: #f8fafc;
    color: var(--vjn-navy);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-weight: 600;
    padding: 0.85rem 1rem;
    border-bottom: 2px solid var(--vjn-border-color);
}

.table-vjn td {
    padding: 0.85rem 1rem;
    font-size: 0.92rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--vjn-border-color);
}

.table-vjn tbody tr:hover {
    background-color: #f1f5f9;
}

.badge-vjn {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.badge-vjn.available, .badge-vjn.good, .badge-vjn.active, .badge-vjn.completed, .badge-vjn.normal {
    background-color: #dcfce7;
    color: #166534;
}

.badge-vjn.assigned, .badge-vjn.in_use, .badge-vjn.sent {
    background-color: #dbeafe;
    color: #1e40af;
}

.badge-vjn.in_store {
    background-color: #f1f5f9;
    color: #475569;
}

.badge-vjn.pending, .badge-vjn.low_stock, .badge-vjn.fair {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-vjn.under_maintenance, .badge-vjn.damaged, .badge-vjn.poor, .badge-vjn.critical, .badge-vjn.rejected {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-vjn.disposed, .badge-vjn.retired, .badge-vjn.cancelled, .badge-vjn.out_of_stock {
    background-color: #f3f4f6;
    color: #374151;
}

/* ------------------------------------------------------------------------------
   Buttons & Form Controls
   ------------------------------------------------------------------------------ */
.btn-vjn-primary {
    background-color: var(--vjn-navy);
    color: #ffffff;
    border: none;
    font-weight: 600;
    padding: 0.55rem 1.25rem;
    border-radius: 6px;
    transition: background-color 0.15s ease;
}

.btn-vjn-primary:hover {
    background-color: var(--vjn-navy-light);
    color: #ffffff;
}

.btn-vjn-success {
    background-color: var(--vjn-accent-green);
    color: #ffffff;
    border: none;
    font-weight: 600;
    padding: 0.55rem 1.25rem;
    border-radius: 6px;
}

.btn-vjn-success:hover {
    background-color: #157347;
    color: #ffffff;
}

.form-control:focus, .form-select:focus {
    border-color: var(--vjn-blue);
    box-shadow: 0 0 0 0.2rem rgba(30, 80, 133, 0.15);
}

/* ------------------------------------------------------------------------------
   Responsive Adjustments
   ------------------------------------------------------------------------------ */
@media (max-width: 992px) {
    .app-sidebar {
        transform: translateX(-100%);
    }
    .app-sidebar.show {
        transform: translateX(0);
    }
    .app-main {
        margin-left: 0;
    }
}