/* ============================================
   Styles spécifiques par page
   ============================================ */

/* === SIDEBAR === */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: #0D0D14;
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: var(--z-sticky);
    transition: width var(--transition-smooth);
    overflow: hidden;
}

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

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-5);
    height: var(--topbar-height);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    letter-spacing: var(--letter-spacing-tight);
}

.sidebar-logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-accent), #0088CC);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: glow 3s ease-in-out infinite;
    flex-shrink: 0;
}

.sidebar-logo-text {
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-collapsed .sidebar-logo-text {
    opacity: 0;
    width: 0;
}

.sidebar-toggle {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4) var(--space-3);
    overflow-y: auto;
}

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

.sidebar-section-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    padding: 0 var(--space-3);
    margin-bottom: var(--space-2);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-collapsed .sidebar-section-title {
    opacity: 0;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 10px var(--space-3);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    white-space: nowrap;
}

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

.sidebar-item.active {
    color: var(--color-accent);
    background: var(--color-accent-subtle);
}

/* Barre néon à gauche pour l'item actif */
.sidebar-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    box-shadow: 0 0 8px var(--color-accent-glow);
}

.sidebar-item-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-item-label {
    overflow: hidden;
}

.sidebar-collapsed .sidebar-item-label {
    opacity: 0;
    width: 0;
}

.sidebar-footer {
    padding: var(--space-4) var(--space-3);
    border-top: 1px solid var(--color-border);
}

/* === TOPBAR === */
.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-8);
    z-index: var(--z-sticky);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.topbar-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.topbar-breadcrumb a:hover {
    color: var(--color-text-primary);
}

.topbar-breadcrumb .separator {
    color: var(--color-text-tertiary);
}

.topbar-breadcrumb .current {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.topbar-search {
    position: relative;
}

.topbar-search input {
    width: 240px;
    padding: 8px 12px 8px 36px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.topbar-search input:focus {
    width: 320px;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.topbar-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
}

/* Notification bell */
.notification-btn {
    position: relative;
}

.notification-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: var(--color-danger);
    border-radius: 50%;
    border: 2px solid var(--color-bg-primary);
}

/* === AUTH PAGES === */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-4);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    animation: fadeInUp 0.5s ease forwards;
}

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

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-6);
}

.auth-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

.auth-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.auth-footer a {
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.auth-footer a:hover {
    color: var(--color-accent-hover);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

/* === STATS CARDS === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.stat-card-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

.stat-card-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card-icon.accent { background: var(--color-accent-subtle); color: var(--color-accent); }
.stat-card-icon.success { background: var(--color-success-glow); color: var(--color-success); }
.stat-card-icon.warning { background: var(--color-warning-glow); color: var(--color-warning); }
.stat-card-icon.danger { background: var(--color-danger-glow); color: var(--color-danger); }

.stat-card-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    letter-spacing: var(--letter-spacing-tight);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-card-change {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

.stat-card-change.positive { color: var(--color-success); }
.stat-card-change.negative { color: var(--color-danger); }

/* === MOBILE SIDEBAR OVERLAY === */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }

    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-sticky) - 1);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .topbar {
        padding: 0 var(--space-4);
    }

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

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .auth-card {
        padding: var(--space-6);
    }
}