/* ==========================================================================
   3D-GROUPE SARL - ADMIN BACK-OFFICE STYLESHEET
   Modern, Sleek & Responsive Dark-Mode Dashboard
   ========================================================================== */

:root {
    --admin-bg: #0f172a;
    --admin-surface: #1e293b;
    --admin-card: #1e293b;
    --admin-card-hover: #334155;
    --admin-border: #334155;
    --admin-text-main: #f8fafc;
    --admin-text-muted: #94a3b8;
    
    --admin-primary: #16a34a;
    --admin-primary-hover: #15803d;
    --admin-primary-glow: rgba(22, 163, 74, 0.25);
    
    --admin-accent: #f59e0b;
    --admin-danger: #ef4444;
    --admin-danger-hover: #dc2626;
    --admin-info: #3b82f6;

    --admin-font: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
    --admin-radius-sm: 6px;
    --admin-radius-md: 10px;
    --admin-radius-lg: 16px;
    
    --admin-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body.admin-body {
    background-color: var(--admin-bg);
    color: var(--admin-text-main);
    font-family: var(--admin-font);
    min-height: 100vh;
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   LOGIN SCREEN
   -------------------------------------------------------------------------- */
.admin-login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1.5rem;
    background: radial-gradient(circle at top right, #1e3a8a 0%, #0f172a 60%);
}

.login-card {
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--admin-radius-lg);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--admin-shadow);
    text-align: center;
}

.login-logo {
    max-width: 130px;
    height: auto;
    margin-bottom: 1rem;
}

.login-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.login-header p {
    color: var(--admin-text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.login-form .form-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

.login-form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--admin-text-muted);
    margin-bottom: 0.4rem;
}

.login-form input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: #0f172a;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-md);
    color: #ffffff;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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

.btn-login {
    width: 100%;
    padding: 0.85rem;
    background: var(--admin-primary);
    color: #ffffff;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: var(--admin-radius-md);
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    margin-top: 0.5rem;
}

.btn-login:hover {
    background: var(--admin-primary-hover);
}

.btn-login:active {
    transform: scale(0.99);
}

.login-credentials-hint {
    margin-top: 1.5rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--admin-radius-sm);
    font-size: 0.8rem;
    color: var(--admin-text-muted);
}

.login-credentials-hint code {
    color: #38bdf8;
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
}

/* --------------------------------------------------------------------------
   ADMIN LAYOUT & DASHBOARD
   -------------------------------------------------------------------------- */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background: #0f172a;
    border-right: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--admin-border);
}

.sidebar-logo {
    height: 40px;
    width: auto;
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
}

.sidebar-title span {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--admin-primary);
}

.sidebar-nav {
    flex: 1;
    padding: 1.25rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    overflow-y: auto;
}

.nav-item-btn {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.75rem 1rem;
    width: 100%;
    background: transparent;
    border: none;
    color: var(--admin-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--admin-radius-md);
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.nav-item-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.nav-item-btn.active {
    background: var(--admin-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--admin-primary-glow);
}

.nav-item-btn .icon {
    font-size: 1.1rem;
}

.sidebar-footer {
    padding: 1.25rem;
    border-top: 1px solid var(--admin-border);
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.65rem;
    background: rgba(239, 68, 68, 0.1);
    color: var(--admin-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--admin-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: var(--admin-danger);
    color: #ffffff;
}

/* Main Area */
.admin-main {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.admin-topbar {
    height: 70px;
    background: var(--admin-surface);
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 90;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-sidebar-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--admin-text-main);
    font-size: 1.4rem;
    cursor: pointer;
}

.topbar-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: #0f172a;
    padding: 0.4rem 0.8rem;
    border-radius: 30px;
    border: 1px solid var(--admin-border);
    font-size: 0.85rem;
}

.avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--admin-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.75rem;
}

/* Main Content Views */
.admin-content {
    padding: 2rem;
    flex: 1;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.25s ease-in-out;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   CARDS & STATS
   -------------------------------------------------------------------------- */
.dashboard-header {
    margin-bottom: 1.5rem;
}

.dashboard-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.dashboard-header p {
    color: var(--admin-text-muted);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--admin-shadow);
}

.stat-info span {
    font-size: 0.85rem;
    color: var(--admin-text-muted);
    font-weight: 500;
}

.stat-info h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-top: 0.2rem;
    color: #ffffff;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--admin-radius-md);
    background: rgba(22, 163, 74, 0.15);
    color: var(--admin-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.stat-card.accent .stat-icon {
    background: rgba(245, 158, 11, 0.15);
    color: var(--admin-accent);
}

.stat-card.info .stat-icon {
    background: rgba(59, 130, 246, 0.15);
    color: var(--admin-info);
}

/* Section Header / Actions Bar */
.content-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title h2 {
    font-size: 1.4rem;
    font-weight: 700;
}

.section-title p {
    font-size: 0.85rem;
    color: var(--admin-text-muted);
}

/* Buttons */
.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: var(--admin-primary);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    border-radius: var(--admin-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-action:hover {
    background: var(--admin-primary-hover);
    box-shadow: 0 4px 12px var(--admin-primary-glow);
}

.btn-secondary {
    background: #334155;
    color: #ffffff;
}
.btn-secondary:hover {
    background: #475569;
}

.btn-danger-sm {
    background: rgba(239, 68, 68, 0.15);
    color: var(--admin-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 0.35rem 0.65rem;
    border-radius: var(--admin-radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-danger-sm:hover {
    background: var(--admin-danger);
    color: #ffffff;
}

.btn-edit-sm {
    background: rgba(59, 130, 246, 0.15);
    color: var(--admin-info);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 0.35rem 0.65rem;
    border-radius: var(--admin-radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-edit-sm:hover {
    background: var(--admin-info);
    color: #ffffff;
}

/* --------------------------------------------------------------------------
   MEDIA GALLERY (MÉDIATHÈQUE)
   -------------------------------------------------------------------------- */
.upload-dropzone {
    background: rgba(15, 23, 42, 0.6);
    border: 2px dashed var(--admin-border);
    border-radius: var(--admin-radius-lg);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 2rem;
}
.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--admin-primary);
    background: rgba(22, 163, 74, 0.05);
}
.upload-dropzone .icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

.media-card {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}

.media-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--admin-shadow);
}

.media-thumb-wrapper {
    height: 160px;
    width: 100%;
    background: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.media-thumb-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-card-info {
    padding: 0.85rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.media-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.2rem;
}

.media-meta {
    font-size: 0.75rem;
    color: var(--admin-text-muted);
    margin-bottom: 0.6rem;
}

.media-actions {
    display: flex;
    gap: 0.4rem;
    margin-top: auto;
}

.btn-icon-sm {
    padding: 0.35rem 0.6rem;
    font-size: 0.8rem;
    border-radius: var(--admin-radius-sm);
    border: 1px solid var(--admin-border);
    background: #0f172a;
    color: #ffffff;
    cursor: pointer;
    transition: background 0.2s;
}
.btn-icon-sm:hover {
    background: #334155;
}

/* --------------------------------------------------------------------------
   DATA TABLES
   -------------------------------------------------------------------------- */
.table-card {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-lg);
    overflow: hidden;
    box-shadow: var(--admin-shadow);
}

.table-responsive {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.admin-table th {
    background: #0f172a;
    padding: 1rem 1.25rem;
    color: var(--admin-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--admin-border);
}

.admin-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--admin-border);
    vertical-align: middle;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.table-img-thumb {
    width: 48px;
    height: 48px;
    border-radius: var(--admin-radius-sm);
    object-fit: cover;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-green { background: rgba(22, 163, 74, 0.2); color: #4ade80; }
.badge-orange { background: rgba(245, 158, 11, 0.2); color: #fde047; }
.badge-blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }

/* --------------------------------------------------------------------------
   FORMS & MODALS
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
}

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

.modal-container {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-lg);
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--admin-shadow);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.modal-overlay.active .modal-container {
    transform: translateY(0);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.2rem;
    color: #ffffff;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--admin-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}
.modal-close-btn:hover { color: #ffffff; }

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--admin-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.admin-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.admin-form .form-group {
    margin-bottom: 1.25rem;
}

.admin-form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--admin-text-muted);
    margin-bottom: 0.4rem;
}

.admin-form input,
.admin-form textarea,
.admin-form select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: #0f172a;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-md);
    color: #ffffff;
    font-family: inherit;
    font-size: 0.9rem;
}

.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px var(--admin-primary-glow);
}

.img-preview-box {
    margin-top: 0.5rem;
    width: 100%;
    max-height: 140px;
    border-radius: var(--admin-radius-md);
    overflow: hidden;
    border: 1px dashed var(--admin-border);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0f172a;
}
.img-preview-box img {
    max-width: 100%;
    max-height: 140px;
    object-fit: cover;
}

/* --------------------------------------------------------------------------
   TOAST NOTIFICATION
   -------------------------------------------------------------------------- */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 2000;
}

.toast {
    background: #1e293b;
    color: #ffffff;
    border-left: 4px solid var(--admin-primary);
    padding: 0.85rem 1.25rem;
    border-radius: var(--admin-radius-md);
    box-shadow: var(--admin-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    animation: slideInRight 0.3s forwards;
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    .admin-sidebar.show {
        transform: translateX(0);
    }
    .admin-main {
        margin-left: 0;
    }
    .mobile-sidebar-toggle {
        display: block;
    }
    .admin-form .form-row {
        grid-template-columns: 1fr;
    }
}