/* Layout.css - Mise en page générale et structures */

/* === PAGE LAYOUT === */
.page-container {
    background-color: var(--color-gray-100);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--spacing-6) 0;
}

.content-wrapper {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: var(--spacing-6);
}

/* === HEADERS DE PAGE === */
.page-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    padding: var(--spacing-8) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20c0 11.046-8.954 20-20 20s-20-8.954-20-20 8.954-20 20-20 20 8.954 20 20zm-20-12c-6.627 0-12 5.373-12 12s5.373 12 12 12 12-5.373 12-12-5.373-12-12-12z'/%3E%3C/g%3E%3C/svg%3E");
}

.page-header h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.page-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

.page-header-simple {
    background: var(--color-white);
    color: var(--color-primary);
    padding: var(--spacing-6) 0;
    border-bottom: 1px solid var(--color-gray-300);
    margin-bottom: var(--spacing-6);
}

.page-header-simple h1 {
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 0;
}

/* === SECTIONS === */
.section {
    padding: var(--spacing-8) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === GRILLES === */
.grid {
    display: grid;
    gap: var(--spacing-6);
}

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

.grid-auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-auto-fill {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* === SIDEBAR LAYOUT === */
.sidebar-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-6);
    align-items: start;
}

.sidebar {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-6);
    box-shadow: var(--shadow);
    position: sticky;
    top: calc(80px + var(--spacing-6)); /* Header height + spacing */
}

.sidebar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: 2px solid var(--color-flashy);
}

.sidebar-section {
    margin-bottom: var(--spacing-6);
}

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

.sidebar-section h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-3);
}

/* === STATS BAR === */
.stats-bar {
    background: linear-gradient(135deg, var(--color-flashy-light), rgba(255, 255, 255, 0.8));
    border: 1px solid var(--color-flashy);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-5);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.stats-bar strong {
    color: var(--color-flashy-dark);
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-flashy);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-top: var(--spacing-1);
}

/* === EMPTY STATES === */
.empty-state {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-8);
    color: var(--color-gray-600);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-3);
    font-size: var(--font-size-xl);
}

.empty-state p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-5);
}

/* === TOOLBAR === */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-300);
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-container input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    padding-left: var(--spacing-10);
    border: 1px solid var(--color-gray-400);
    border-radius: var(--border-radius-xl);
    background: var(--color-white);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.search-container input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.search-container::before {
    content: '';
    position: absolute;
    left: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    z-index: 1;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    
    .sidebar-layout {
        grid-template-columns: 250px 1fr;
        gap: var(--spacing-4);
    }
    
    .sidebar {
        padding: var(--spacing-4);
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-4) 0;
    }
    
    .page-header {
        padding: var(--spacing-6) 0;
    }
    
    .page-header h1 {
        font-size: var(--font-size-3xl);
    }
    
    .section {
        padding: var(--spacing-6) 0;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .sidebar-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        order: -1;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-3);
    }
    
    .toolbar-left,
    .toolbar-right {
        justify-content: space-between;
        width: 100%;
    }
    
    .search-container {
        max-width: none;
        order: -1;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        margin: 0;
        border-radius: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .empty-state {
        padding: var(--spacing-12) var(--spacing-4);
    }
    
    .empty-state-icon {
        font-size: 3rem;
    }
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* === FOCUS MANAGEMENT === */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius);
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}