:root {
    /* Couleurs principales AES */
    --color-primary: #0077B6;          /* Bleu Air */
    --color-primary-dark: #005A8C;
    --color-primary-light: #E0F2FE;
    
    --color-secondary: #00A896;        /* Vert Eau */
    --color-secondary-dark: #007F6E;
    --color-secondary-light: #D1FAE5;
    
    /* Couleurs d'accent */
    --color-accent: #F77F00;           /* Orange */
    --color-accent-light: #FEF3E2;
    
    /* Couleurs pour types de fichiers */
    --color-pdf: #DC2626;
    --color-pdf-light: #FEE2E2;
    --color-image: #2563EB;
    --color-image-light: #DBEAFE;
    --color-video: #7C3AED;
    --color-video-light: #EDE9FE;
    
    /* Couleurs sémantiques */
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    
    /* Couleurs neutres */
    --color-background: #F1F5F9;
    --color-surface: #FFFFFF;
    --color-text: #1E293B;
    --color-text-light: #64748B;
    --color-border: #E2E8F0;
    
    /* Typographie */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Rayons */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    
    /* Sidebar */
    --sidebar-width: 280px;
}


/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
    font-size: 14px;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}


/* ===========================================
   HEADER
   =========================================== */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
}

.logo-img {
    height: 45px;
    width: auto;
}

.logo-fallback {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
}

.logo-icon {
    width: 2rem;
    height: 2rem;
}

.header-title {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    padding-left: var(--spacing-lg);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    margin-left: var(--spacing-lg);
}

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

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    color: white;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
}

.user-email {
    font-size: 0.75rem;
    opacity: 0.8;
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.15);
    transition: background-color 0.2s;
}

.btn-logout:hover {
    background-color: rgba(255, 255, 255, 0.25);
    text-decoration: none;
}

.btn-logout svg {
    width: 1.25rem;
    height: 1.25rem;
    color: white;
}


/* ===========================================
   FOOTER
   =========================================== */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.footer-contact {
    margin-top: var(--spacing-xs);
}

.footer-contact a {
    color: var(--color-text-light);
}

.footer-contact a:hover {
    color: var(--color-primary);
}

.footer-compact {
    padding: var(--spacing-md);
}

.footer-compact .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}


/* ===========================================
   PAGE CONNEXION
   =========================================== */
.page-login {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.login-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xl);
}

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

.login-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-icon svg {
    width: 2rem;
    height: 2rem;
    color: white;
}

.login-icon-secondary {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--color-text-light);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-text-light);
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    color: var(--color-text);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder {
    color: var(--color-text-light);
}

.login-footer {
    text-align: center;
}

.link {
    color: var(--color-primary);
    font-size: 0.875rem;
}

.login-info {
    margin-top: var(--spacing-xl);
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

form.was-validated input:invalid,
form.was-validated select:invalid,
form.was-validated textarea:invalid,
form.was-validated input.is-invalid,
form.was-validated select.is-invalid,
form.was-validated textarea.is-invalid {
    border-color: #dc2626;
    background: #fef2f2;
    box-shadow: 0 0 0 1px #dc2626;
}

/* --- Boutons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(0, 119, 182, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px 0 rgba(0, 119, 182, 0.4);
}

.btn-block {
    width: 100%;
}

/* Spinner icon placed inside buttons (ex: tab-user.php submit) */
.btn .aes-waiting-icon {
    width: 16px;
    height: 16px;
    vertical-align: -3px;
    animation: aes_extranet_spin 0.8s linear infinite;
    transform-origin: 50% 50%;
}

.btn.loading .aes-waiting-icon {
    display: inline-block;
}

.btn.loading .aes-icon,
.btn:not(.loading) .aes-waiting-icon {
    display: none;
}

/* ===== AES waiting spinner ===== */
@keyframes aes_extranet_spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===========================================
   PAGE DASHBOARD - LAYOUT
   =========================================== */
.page-dashboard {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.dashboard-layout {
    display: flex;
    flex: 1;
}


/* ===========================================
   SIDEBAR
   =========================================== */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 77px;
    height: calc(100vh - 77px);
    overflow-y: auto;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-header h3 svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-primary);
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.875rem;
    transition: all 0.2s;
    text-decoration: none;
}

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

.nav-item.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 500;
}

.nav-item svg {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.nav-count {
    margin-left: auto;
    background-color: var(--color-background);
    color: var(--color-text-light);
    font-size: 0.75rem;
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
}

.nav-item.active .nav-count {
    background-color: var(--color-primary);
    color: white;
}

.nav-category {
    margin-top: var(--spacing-sm);
}

.nav-category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background-color 0.2s;
}

.nav-category-header:hover {
    background-color: var(--color-background);
}

.nav-category-header svg {
    width: 1.25rem;
    height: 1.25rem;
}

.nav-category-header .chevron {
    margin-left: auto;
    transition: transform 0.2s;
}

.nav-category.open .nav-category-header .chevron {
    transform: rotate(180deg);
}

.nav-category-items {
    display: none;
    padding-left: var(--spacing-xl);
    margin-top: var(--spacing-xs);
}

.nav-category.open .nav-category-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}


/* ===========================================
   DASHBOARD MAIN
   =========================================== */
.dashboard-main {
    flex: 1;
    min-width: 0;
}

.dashboard-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}


/* --- Cartes statistiques --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stat-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

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

.stat-icon-blue svg {
    color: var(--color-primary);
}

.stat-icon-green {
    background-color: var(--color-secondary-light);
}

.stat-icon-green svg {
    color: var(--color-secondary);
}

.stat-icon-purple {
    background-color: var(--color-video-light);
}

.stat-icon-purple svg {
    color: var(--color-video);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}


/* ===========================================
   SECTION DOCUMENTS
   =========================================== */
.documents-section {
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.documents-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.documents-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.documents-filters {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.date-input {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    background-color: var(--color-background);
}

.date-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.search-box {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-text-light);
}

.search-box input {
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    font-size: 0.875rem;
    width: 200px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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


/* --- Liste documents --- */
.documents-list {
    display: flex;
    flex-direction: column;
}

.document-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    transition: background-color 0.2s;
}

.document-item:last-child {
    border-bottom: none;
}

.document-item:hover {
    background-color: var(--color-background);
}

.document-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
}

.document-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.document-icon .file-type {
    font-size: 0.625rem;
    font-weight: 700;
    margin-top: 2px;
}

.document-icon-pdf {
    background-color: var(--color-pdf-light);
    color: var(--color-pdf);
}

.document-icon-image {
    background-color: var(--color-image-light);
    color: var(--color-image);
}

.document-icon-video {
    background-color: var(--color-video-light);
    color: var(--color-video);
}

.document-info {
    flex: 1;
    min-width: 0;
}

.document-title-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.document-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-new {
    background-color: var(--color-secondary-light);
    color: var(--color-secondary);
}

.document-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.meta-item svg {
    width: 1rem;
    height: 1rem;
}

.meta-category {
    color: var(--color-primary);
}

.document-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.btn-action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    transition: background-color 0.2s;
}

.btn-action:hover {
    background-color: var(--color-border);
    text-decoration: none;
}

.btn-action svg {
    width: 1.25rem;
    height: 1.25rem;
}

.btn-view svg {
    color: var(--color-primary);
}

.btn-download svg {
    color: var(--color-secondary);
}


/* --- Message aucun document --- */
.documents-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem var(--spacing-lg);
    color: var(--color-text-light);
}

.documents-empty svg {
    width: 3rem;
    height: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}


/* ===========================================
   RESPONSIVE
   =========================================== */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .header-title {
        display: none;
    }
    
    .dashboard-layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        top: 0;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .nav-category {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .documents-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .documents-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-date {
        flex-wrap: wrap;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .document-item {
        flex-wrap: wrap;
    }
    
    .document-info {
        flex: 1 1 calc(100% - 80px);
    }
    
    .document-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: var(--spacing-sm);
    }
    
    .document-meta {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .footer-compact .footer-content {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-lg);
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
    
    .user-info {
        display: none;
    }
}