/* ============================================
   BibImmo - Layout CSS (Refonte UI)
   ============================================ */

/* === Layout Variables === */
:root {
    --sidebar-width: 256px;
    --sidebar-collapsed-width: 64px;
    --context-panel-width: 280px;
    --header-height: 56px;
    
    /* Transitions */
    --transition-speed: 300ms;
}

/* === Main Layout === */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--gray-50);
}

/* === Sidebar Left === */
.sidebar-left {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: var(--brand-bg);
    border-right: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    z-index: 40;
    transition: width var(--transition-speed) ease;
    overflow-y: auto;
    overflow-x: hidden;
}

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

.sidebar-logo {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-nav {
    padding: var(--spacing-md);
}

.nav-group {
    margin-bottom: var(--spacing-md);
}

.nav-group-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--gray-700);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--gray-100);
    text-decoration: none;
}

.nav-item.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* === Main Content Area === */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

/* === Header Bar === */
.header-bar {
    height: var(--header-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 30;
}

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

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

/* === Content Area === */
.content-area {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

/* === Context Panel (Right Sidebar) === */
.context-panel {
    width: var(--context-panel-width);
    background: white;
    border-left: 1px solid var(--gray-200);
    position: fixed;
    right: 0;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    transition: transform var(--transition-speed) ease;
    z-index: 30;
}

.context-panel.hidden {
    transform: translateX(100%);
}

.context-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.context-section {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-100);
}

.context-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
}

.btn-context {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    background: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
}

.btn-context:hover {
    background: var(--gray-50);
    border-color: var(--primary);
    color: var(--primary);
}

/* === Stats Mini (for context panel) === */
.stat-mini {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.stat-mini .label {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.stat-mini .value {
    font-weight: 600;
}

.stat-mini .value.text-error {
    color: var(--danger);
}

.stat-mini .value.text-success {
    color: var(--success);
}

/* === Page Headers === */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.page-subtitle {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.page-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* === Cards === */
.card-hover {
    transition: all 0.2s ease;
}

.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* === Empty States === */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    color: var(--gray-500);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .context-panel {
        transform: translateX(100%);
    }
    
    .context-panel.show {
        transform: translateX(0);
    }
}

@media (max-width: 768px) {
    .sidebar-left {
        transform: translateX(-100%);
    }
    
    .sidebar-left.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}

/* === Animations === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes slideInRight {
    from { transform: translateX(20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.animate-slide-in {
    animation: slideInRight 0.3s ease;
}