/* ============================================================
   MailPlatform — Super Admin Interface
   Palette : bleu foncé #1a237e, blanc #ffffff, gris #f5f6fa
   ============================================================ */

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

:root {
    --color-primary: #1a237e;
    --color-primary-light: #283593;
    --color-primary-dark: #0d1642;
    --color-accent: #3f51b5;
    --color-accent-light: #5c6bc0;
    --color-bg: #f5f6fa;
    --color-surface: #ffffff;
    --color-text: #212121;
    --color-text-secondary: #757575;
    --color-text-light: #9e9e9e;
    --color-border: #e0e0e0;
    --color-success: #2e7d32;
    --color-success-bg: #e8f5e9;
    --color-warning: #f57f17;
    --color-warning-bg: #fff8e1;
    --color-danger: #c62828;
    --color-danger-bg: #ffebee;
    --color-info: #1565c0;
    --color-info-bg: #e3f2fd;
    --sidebar-width: 250px;
    --header-height: 64px;
    --radius: 8px;
    --radius-sm: 5px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 2px 8px rgba(0,0,0,0.10);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --transition: 0.2s ease;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                 'Helvetica Neue', Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

/* ---------- Login Screen ---------- */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-accent) 100%);
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.5s ease;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 2rem;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--color-text-secondary);
    margin-top: 8px;
    font-size: 0.95rem;
}

.login-error {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 16px;
    border: 1px solid var(--color-danger);
    display: none;
}

/* ---------- App Container ---------- */
.app-container {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
    background: var(--color-primary);
    color: #ffffff;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    z-index: 100;
    box-shadow: 2px 0 12px rgba(0,0,0,0.15);
    transition: transform var(--transition);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 22px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 1px;
}

.brand-text {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.nav-list { display: flex; flex-direction: column; gap: 2px; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 22px;
    color: rgba(255,255,255,0.7);
    border-radius: 0 24px 24px 0;
    margin-right: 16px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
    text-decoration: none;
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255,255,255,0.08);
    text-decoration: none;
}

.nav-link.active {
    color: #ffffff;
    background: var(--color-accent);
    font-weight: 600;
}

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

.sidebar-footer {
    padding: 16px 22px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.version-badge {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
}

/* ---------- Main Area ---------- */
.main-area {
    grid-column: 2;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ---------- Top Header ---------- */
.top-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 28px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text);
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--color-bg);
}

.mobile-menu-toggle svg {
    width: 22px;
    height: 22px;
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.user-name {
    font-weight: 500;
    color: var(--color-text);
}

/* ---------- Main Content ---------- */
.main-content {
    flex: 1;
    padding: 28px;
    background: var(--color-bg);
}

/* ---------- Cards ---------- */
.card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    transition: box-shadow var(--transition);
}

.card:hover { box-shadow: var(--shadow); }

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-border);
}

.card-header h2, .card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
}

.card-body { }

.card-footer {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ---------- Stats Grid ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.stat-card .stat-change {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

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

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
    line-height: 1.4;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-bg);
}

.btn-success {
    background: var(--color-success);
    color: #ffffff;
}

.btn-success:hover:not(:disabled) {
    background: #1b5e20;
}

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

.btn-danger:hover:not(:disabled) {
    background: #b71c1c;
}

.btn-warning {
    background: var(--color-warning);
    color: #ffffff;
}

.btn-warning:hover:not(:disabled) {
    background: #e65100;
}

.btn-sm { padding: 5px 12px; font-size: 0.8rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }
.btn-block { display: flex; width: 100%; }

.btn-icon {
    width: 16px;
    height: 16px;
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

/* ---------- Tables ---------- */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table thead {
    background: var(--color-bg);
    border-bottom: 2px solid var(--color-border);
}

.table th {
    padding: 12px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.table tbody tr {
    transition: background var(--transition);
}

.table tbody tr:hover {
    background: rgba(63, 81, 181, 0.04);
}

.table-actions {
    display: flex;
    gap: 6px;
}

/* ---------- Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    text-transform: capitalize;
}

.badge-active    { background: var(--color-success-bg); color: var(--color-success); }
.badge-suspended { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-pending   { background: var(--color-info-bg);    color: var(--color-info); }
.badge-error     { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge-default   { background: var(--color-bg);         color: var(--color-text-secondary); }

/* ---------- Forms ---------- */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group input[type="number"],
.form-group input[type="search"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.9rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-hint {
    font-size: 0.78rem;
    color: var(--color-text-light);
    margin-top: 4px;
}

/* ---------- Modals ---------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn 0.2s ease;
    padding: 20px;
}

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.25s ease;
}

.modal-lg { max-width: 720px; }
.modal-sm { max-width: 400px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    font-size: 1.2rem;
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--color-border);
}

/* ---------- Toasts ---------- */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 14px 22px;
    border-radius: var(--radius);
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    max-width: 380px;
    word-break: break-word;
}

.toast-info    { background: var(--color-info); }
.toast-success { background: var(--color-success); }
.toast-warning { background: var(--color-warning); }
.toast-error   { background: var(--color-danger); }

/* ---------- Loading ---------- */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.loading::before {
    content: '';
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin-right: 12px;
}

.loading-sm {
    padding: 16px;
    font-size: 0.8rem;
}

.loading-sm::before {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

/* ---------- Pagination ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
}

.pagination button {
    min-width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--color-text);
    transition: all var(--transition);
}

.pagination button:hover:not(:disabled) {
    background: var(--color-bg);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.pagination button.active {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ---------- Search Bar ---------- */
.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.search-bar input {
    flex: 1;
}

/* ---------- Charts ---------- */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.chart-container {
    position: relative;
    height: 280px;
}

.chart-container canvas {
    width: 100% !important;
    max-height: 280px;
}

.chart-container-lg {
    height: 340px;
}

/* ---------- Breadcrumb ---------- */
.context-breadcrumb {
    position: sticky;
    top: var(--header-height);
    background: var(--color-warning-bg);
    padding: 10px 28px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 49;
    border-bottom: 1px solid #ffe0b2;
}

.context-breadcrumb a {
    color: var(--color-accent);
    font-weight: 500;
}

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--color-text-secondary);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state p {
    font-size: 0.95rem;
    margin-bottom: 16px;
}

/* ---------- JSON Pre (Audit Details) ---------- */
.audit-detail {
    background: #1e1e2e;
    color: #cdd6f4;
    border-radius: var(--radius-sm);
    padding: 16px;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ---------- Filters ---------- */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 20px;
}

.filters .form-group {
    margin-bottom: 0;
    min-width: 160px;
    flex: 1;
}

.filters .btn {
    align-self: flex-end;
}

/* ---------- System Info Grid ---------- */
.system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.system-metric {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.system-metric:last-child { border-bottom: none; }

.system-metric .metric-label {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

.system-metric .metric-value {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9rem;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background: var(--color-bg);
    border-radius: 5px;
    overflow: hidden;
    margin-top: 6px;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 5px;
    transition: width 0.5s ease;
}

.progress-bar-fill.green  { background: var(--color-success); }
.progress-bar-fill.yellow { background: var(--color-warning); }
.progress-bar-fill.red    { background: var(--color-danger); }
.progress-bar-fill.blue   { background: var(--color-info); }

/* ---------- Animations ---------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to   { opacity: 0; }
}

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

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

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(60px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---------- Responsive -- Tablettes ---------- */
@media (max-width: 1024px) {
    :root { --sidebar-width: 220px; }
    .charts-grid { grid-template-columns: 1fr; }
}

/* ---------- Responsive -- Mobiles ---------- */
@media (max-width: 768px) {
    .app-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .top-header {
        padding: 0 16px;
    }

    .main-content {
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
    }

    .filters .form-group {
        min-width: 100%;
    }

    .table th,
    .table td {
        padding: 8px 10px;
    }

    .modal {
        max-width: 95vw;
        max-height: 90vh;
        margin: 0 10px;
    }

    .login-card {
        margin: 0 16px;
        padding: 32px 24px;
    }

    .btn-label,
    .user-name {
        display: none;
    }

    .header-user {
        gap: 6px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ---------- Sidebar Overlay (Mobile) ---------- */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 99;
}

@media (max-width: 768px) {
    .sidebar-overlay.visible {
        display: block;
    }
}