/* ============================================
   PORTAIL CLIENT SEICAR - Feuille de style
   Charte graphique Seicar 2025
   ============================================ */

:root {
    --seicar-bleu-fonce: #004F87;
    --seicar-bleu: #2496D4;
    --seicar-bleu-clair: #85CCD4;
    --seicar-orange: #ED7017;
    --seicar-gris-fonce: #2C3E50;
    --seicar-gris: #7F8C8D;
    --seicar-gris-clair: #ECF0F1;
    --seicar-blanc: #FFFFFF;
    --seicar-noir: #1A1A1A;
    --seicar-rouge: #E74C3C;
    --seicar-vert: #27AE60;

    --sidebar-width: 260px;
    --header-height: 70px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 2px 12px rgba(0, 79, 135, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 79, 135, 0.15);
    --radius: 10px;
    --radius-sm: 6px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--seicar-gris-clair);
    color: var(--seicar-noir);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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

/* ===== LOGIN PAGE ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--seicar-bleu-fonce) 0%, var(--seicar-bleu) 50%, var(--seicar-bleu-clair) 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(133, 204, 212, 0.1) 0%, transparent 60%);
    animation: shimmer 8s ease-in-out infinite;
}

.login-card {
    background: var(--seicar-blanc);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 50px 40px;
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
    animation: fadeIn 0.6s ease;
}

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo img {
    max-height: 80px;
    width: auto;
}

.login-card h1 {
    text-align: center;
    color: var(--seicar-bleu-fonce);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.login-subtitle {
    text-align: center;
    color: var(--seicar-gris);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.login-welcome-msg {
    background: var(--seicar-gris-clair);
    border-left: 4px solid var(--seicar-orange);
    padding: 15px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 25px;
    font-size: 0.9rem;
    color: var(--seicar-gris-fonce);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--seicar-bleu-fonce);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--seicar-bleu);
    box-shadow: 0 0 0 3px rgba(36, 150, 212, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--seicar-bleu-fonce);
    color: var(--seicar-blanc);
    width: 100%;
}

.btn-primary:hover {
    background: var(--seicar-bleu);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 79, 135, 0.3);
}

.btn-secondary {
    background: var(--seicar-bleu-clair);
    color: var(--seicar-bleu-fonce);
}

.btn-secondary:hover {
    background: var(--seicar-bleu);
    color: var(--seicar-blanc);
}

.btn-orange {
    background: var(--seicar-orange);
    color: var(--seicar-blanc);
}

.btn-orange:hover {
    background: #D9620E;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--seicar-rouge);
    color: var(--seicar-blanc);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--seicar-bleu-fonce);
    color: var(--seicar-bleu-fonce);
}

.btn-outline:hover {
    background: var(--seicar-bleu-fonce);
    color: var(--seicar-blanc);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 50%;
}

.login-error {
    background: #FDEDEC;
    color: var(--seicar-rouge);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.85rem;
    display: none;
    border-left: 4px solid var(--seicar-rouge);
}

.login-error.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

.login-2fa {
    display: none;
}

.login-2fa.show {
    display: block;
    animation: fadeIn 0.4s ease;
}

.login-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 0.8rem;
    color: var(--seicar-gris);
}

.login-footer a {
    color: var(--seicar-bleu);
    text-decoration: none;
}

.password-strength {
    height: 4px;
    border-radius: 2px;
    margin-top: 6px;
    background: #E0E0E0;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: width 0.3s ease, background 0.3s ease;
}

/* ===== LAYOUT ===== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--seicar-bleu-fonce) 0%, #003A66 100%);
    color: var(--seicar-blanc);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header img {
    max-height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
}

.sidebar-header h2 {
    font-size: 0.85rem;
    margin-top: 10px;
    color: var(--seicar-bleu-clair);
    font-weight: 400;
}

.sidebar.collapsed .sidebar-header h2,
.sidebar.collapsed .nav-item-label,
.sidebar.collapsed .nav-section-title {
    display: none;
}

.sidebar-nav {
    flex: 1;
    padding: 15px 0;
}

.nav-section-title {
    padding: 15px 20px 8px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.4);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
    font-size: 0.9rem;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--seicar-blanc);
    border-left-color: var(--seicar-orange);
}

.nav-item.active {
    background: rgba(36, 150, 212, 0.15);
    color: var(--seicar-blanc);
    border-left-color: var(--seicar-bleu);
}

.nav-item-icon {
    font-size: 1.2rem;
    min-width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--seicar-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    min-width: 36px;
}

.sidebar-user-info {
    overflow: hidden;
}

.sidebar-user-name {
    font-weight: 600;
    white-space: nowrap;
}

.sidebar-user-role {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.sidebar.collapsed .sidebar-user-info {
    display: none;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    transition: var(--transition);
}

.main-content.expanded {
    margin-left: 70px;
}

.topbar {
    height: var(--header-height);
    background: var(--seicar-blanc);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    position: sticky;
    top: 0;
    z-index: 999;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.topbar-toggle {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--seicar-bleu-fonce);
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.topbar-toggle:hover {
    background: var(--seicar-gris-clair);
}

.topbar-title {
    font-size: 1.2rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 600;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.topbar-client-logo {
    max-height: 45px;
    width: auto;
}

.topbar-badge {
    background: var(--seicar-orange);
    color: var(--seicar-blanc);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.content-area {
    padding: 25px;
    animation: fadeIn 0.4s ease;
}

/* ===== CARDS ===== */
.card {
    background: var(--seicar-blanc);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 25px;
    margin-bottom: 20px;
    transition: var(--transition);
}

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

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--seicar-gris-clair);
}

.card-title {
    font-size: 1.1rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 600;
}

.card-actions {
    display: flex;
    gap: 10px;
}

/* ===== WELCOME BANNER ===== */
.welcome-banner {
    background: linear-gradient(135deg, var(--seicar-bleu-fonce) 0%, var(--seicar-bleu) 100%);
    color: var(--seicar-blanc);
    border-radius: var(--radius);
    padding: 30px;
    margin-bottom: 25px;
    position: relative;
    overflow: hidden;
}

.welcome-banner::after {
    content: '';
    position: absolute;
    right: -50px;
    top: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(133, 204, 212, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.welcome-banner h2 {
    font-size: 1.6rem;
    margin-bottom: 8px;
}

.welcome-banner p {
    opacity: 0.9;
    font-size: 0.95rem;
}

/* ===== GRID ===== */
.grid {
    display: grid;
    gap: 20px;
}

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

@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ===== WIDGETS ===== */
.widget-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 20px;
}

.widget {
    background: var(--seicar-blanc);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    animation: fadeIn 0.5s ease;
}

.widget:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: var(--seicar-gris-clair);
    border-bottom: 1px solid #E0E0E0;
}

.widget-title {
    font-size: 0.95rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.widget-actions {
    display: flex;
    gap: 5px;
}

.widget-action-btn {
    background: none;
    border: 1px solid #DDD;
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--seicar-gris);
    transition: var(--transition);
}

.widget-action-btn:hover {
    background: var(--seicar-bleu-fonce);
    color: var(--seicar-blanc);
    border-color: var(--seicar-bleu-fonce);
}

.widget-action-btn.active-period {
    background: var(--seicar-orange);
    color: var(--seicar-blanc);
    border-color: var(--seicar-orange);
    font-weight: 700;
}

.widget-body {
    padding: 20px;
}

.widget-chart {
    width: 100%;
    height: 300px;
}

.widget-value {
    text-align: center;
    padding: 30px 0;
}

.widget-value-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--seicar-bleu-fonce);
    line-height: 1;
}

.widget-value-unit {
    font-size: 1.2rem;
    color: var(--seicar-gris);
    margin-left: 5px;
}

.widget-value-time {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--seicar-gris);
}

.widget-energy-values {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-top: 15px;
}

.energy-cell {
    text-align: center;
    padding: 10px 5px;
    background: var(--seicar-gris-clair);
    border-radius: var(--radius-sm);
}

.energy-cell-label {
    font-size: 0.7rem;
    color: var(--seicar-gris);
    font-weight: 600;
}

.energy-cell-value {
    font-size: 1.1rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 700;
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    gap: 5px;
    border-bottom: 2px solid var(--seicar-gris-clair);
    margin-bottom: 20px;
    overflow-x: auto;
}

.tab {
    padding: 12px 20px;
    cursor: pointer;
    color: var(--seicar-gris);
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    font-size: 0.9rem;
}

.tab:hover {
    color: var(--seicar-bleu);
}

.tab.active {
    color: var(--seicar-bleu-fonce);
    border-bottom-color: var(--seicar-orange);
    font-weight: 600;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

/* ===== PAGE SECTIONS (navigation) ===== */
.page-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page-section.active {
    display: block;
}

/* ===== TABLE ===== */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    padding: 12px 15px;
    background: var(--seicar-gris-clair);
    color: var(--seicar-bleu-fonce);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 12px 15px;
    border-bottom: 1px solid #EEE;
    font-size: 0.9rem;
}

.table tr:hover {
    background: #F8F9FA;
}

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

/* ===== STATUS BADGES ===== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: #D5F5E3; color: var(--seicar-vert); }
.badge-warning { background: #FDEBD0; color: var(--seicar-orange); }
.badge-danger { background: #FADBD8; color: var(--seicar-rouge); }
.badge-info { background: #D6EAF8; color: var(--seicar-bleu-fonce); }

/* ===== SFTP FILE EXPLORER ===== */
.file-explorer {
    padding: 10px 0;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 4px;
}

.file-item:hover {
    background: var(--seicar-gris-clair);
    transform: translateX(5px);
}

.file-item.folder {
    font-weight: 600;
}

.file-item.folder.has-docs {
    color: var(--seicar-orange);
}

.file-item.folder.empty {
    color: var(--seicar-bleu);
}

.file-item-icon {
    font-size: 1.4rem;
}

.file-item-name {
    flex: 1;
    font-size: 0.9rem;
}

.file-item-size {
    font-size: 0.8rem;
    color: var(--seicar-gris);
}

.file-item-actions {
    display: flex;
    gap: 5px;
    opacity: 0;
    transition: var(--transition);
}

.file-item:hover .file-item-actions {
    opacity: 1;
}

/* ===== INSTALLATIONS ===== */
.installation-card {
    background: var(--seicar-blanc);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    margin-bottom: 20px;
}

.installation-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.installation-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--seicar-gris-clair);
}

.installation-body {
    padding: 20px;
}

.installation-title {
    font-size: 1.1rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 600;
    margin-bottom: 8px;
}

.installation-notes {
    color: var(--seicar-gris);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.intervention-list {
    border-top: 1px solid #EEE;
    padding-top: 15px;
}

.intervention-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #F5F5F5;
}

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

.intervention-date {
    font-size: 0.8rem;
    color: var(--seicar-gris);
    min-width: 100px;
}

.intervention-name {
    flex: 1;
    font-size: 0.9rem;
    margin-left: 15px;
}

.intervention-budget {
    font-size: 0.85rem;
    color: var(--seicar-orange);
    font-weight: 600;
}

/* ===== MODAL ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal {
    background: var(--seicar-blanc);
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: fadeIn 0.4s ease;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 25px;
    border-bottom: 1px solid #EEE;
}

.modal-title {
    font-size: 1.2rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--seicar-gris);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--seicar-rouge);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px 25px;
    border-top: 1px solid #EEE;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== FORMS ===== */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .form-row, .form-row-3 { grid-template-columns: 1fr; }
}

/* ===== STATS CARDS ===== */
.stat-card {
    background: var(--seicar-blanc);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.blue { background: #D6EAF8; color: var(--seicar-bleu-fonce); }
.stat-icon.orange { background: #FDEBD0; color: var(--seicar-orange); }
.stat-icon.green { background: #D5F5E3; color: var(--seicar-vert); }
.stat-icon.cyan { background: #E8F8F9; color: var(--seicar-bleu-clair); }

.stat-info h3 {
    font-size: 1.8rem;
    color: var(--seicar-bleu-fonce);
    font-weight: 700;
}

.stat-info p {
    font-size: 0.85rem;
    color: var(--seicar-gris);
}

/* ===== VIDEO BUTTON ===== */
.video-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--seicar-orange);
    color: var(--seicar-blanc);
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(237, 112, 23, 0.3);
}

.video-btn:hover {
    background: #D9620E;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(237, 112, 23, 0.4);
}

/* ===== SPINNER ===== */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--seicar-gris-clair);
    border-top-color: var(--seicar-bleu);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 20px auto;
}

/* ===== TOAST NOTIFICATION ===== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--seicar-bleu-fonce);
    color: var(--seicar-blanc);
    padding: 15px 25px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 3000;
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateX(400px);
    transition: var(--transition);
}

.toast.show {
    transform: translateX(0);
}

.toast.success { background: var(--seicar-vert); }
.toast.error { background: var(--seicar-rouge); }
.toast.warning { background: var(--seicar-orange); }

/* ===== ERROR PAGES ===== */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--seicar-bleu-fonce) 0%, var(--seicar-bleu) 100%);
    color: var(--seicar-blanc);
    text-align: center;
}

.error-page-content {
    animation: fadeIn 0.6s ease;
}

.error-page-code {
    font-size: 8rem;
    font-weight: 700;
    line-height: 1;
    color: var(--seicar-orange);
}

.error-page-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.error-page-desc {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 30px;
}

.error-page .btn-primary {
    width: auto;
    padding: 12px 30px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .main-content.expanded {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .content-area {
        padding: 15px;
    }
    .welcome-banner {
        padding: 20px;
    }
    .welcome-banner h2 {
        font-size: 1.3rem;
    }
    .widget-grid {
        grid-template-columns: 1fr;
    }
    .widget-energy-values {
        grid-template-columns: repeat(3, 1fr);
    }
    .topbar-title {
        font-size: 1rem;
    }
    .topbar-client-logo {
        max-height: 35px;
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

/* ===== DARK MODE ===== */
body.dark-mode {
    --seicar-gris-clair: #1E2A3A;
    --seicar-blanc: #2C3E50;
    --seicar-noir: #ECF0F1;
    --seicar-gris-fonce: #ECF0F1;
    background: #1A2332;
    color: #ECF0F1;
}

body.dark-mode .card,
body.dark-mode .widget,
body.dark-mode .stat-card,
body.dark-mode .installation-card,
body.dark-mode .topbar {
    background: #2C3E50;
    color: #ECF0F1;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

body.dark-mode .card-title,
body.dark-mode .widget-title,
body.dark-mode .installation-title,
body.dark-mode .topbar-title {
    color: #85CCD4;
}

body.dark-mode .table th {
    background: #34495E;
    color: #85CCD4;
}

body.dark-mode .table td {
    border-bottom-color: #34495E;
}

body.dark-mode .table tr:hover {
    background: #34495E;
}

body.dark-mode .form-group input,
body.dark-mode .form-group select,
body.dark-mode .form-group textarea {
    background: #34495E;
    border-color: #4A6278;
    color: #ECF0F1;
}

body.dark-mode .form-group input:focus,
body.dark-mode .form-group select:focus,
body.dark-mode .form-group textarea:focus {
    border-color: var(--seicar-bleu);
}

body.dark-mode .welcome-banner {
    background: linear-gradient(135deg, #003A66 0%, #1A5C8A 100%);
}

body.dark-mode .stat-icon.blue { background: #1A3A5C; }
body.dark-mode .stat-icon.orange { background: #5C3A1A; }
body.dark-mode .stat-icon.green { background: #1A3C2A; }
body.dark-mode .stat-icon.cyan { background: #1A4A4A; }

body.dark-mode .stat-info h3 {
    color: #85CCD4;
}

body.dark-mode .stat-info p {
    color: #95A5A6;
}

body.dark-mode .modal {
    background: #2C3E50;
    color: #ECF0F1;
}

body.dark-mode .modal-header,
body.dark-mode .modal-footer {
    border-color: #34495E;
}

body.dark-mode .modal-title {
    color: #85CCD4;
}

body.dark-mode .file-upload {
    background: #34495E;
    border-color: #4A6278;
}

body.dark-mode .file-upload:hover {
    background: #3A526A;
}

body.dark-mode .file-upload-text {
    color: #95A5A6;
}

body.dark-mode .multiselect-trigger {
    background: #34495E;
    border-color: #4A6278;
    color: #ECF0F1;
}

body.dark-mode .multiselect-dropdown {
    background: #2C3E50;
    border-color: var(--seicar-bleu);
}

body.dark-mode .multiselect-option:hover {
    background: #34495E;
}

body.dark-mode .multiselect-option.selected {
    background: #1A3A5C;
}

body.dark-mode .multiselect-tag {
    background: #1A3A5C;
    color: #85CCD4;
}

body.dark-mode .widget-header {
    background: #34495E;
    border-bottom-color: #4A6278;
}

body.dark-mode .widget-action-btn {
    border-color: #4A6278;
    color: #95A5A6;
}

body.dark-mode .energy-cell {
    background: #34495E;
}

body.dark-mode .energy-cell-value {
    color: #85CCD4;
}

body.dark-mode .energy-cell-label {
    color: #95A5A6;
}

body.dark-mode .file-item:hover {
    background: #34495E;
}

body.dark-mode .tab:hover {
    color: var(--seicar-bleu-clair);
}

body.dark-mode .tab.active {
    color: #85CCD4;
}

body.dark-mode .intervention-item {
    border-bottom-color: #34495E;
}

body.dark-mode .btn-outline {
    border-color: #4A6278;
    color: #ECF0F1;
}

body.dark-mode .btn-outline:hover {
    background: var(--seicar-bleu-fonce);
    color: #fff;
}

body.dark-mode .login-welcome-msg {
    background: #34495E;
    color: #ECF0F1;
}

body.dark-mode ::-webkit-scrollbar-track {
    background: #1A2332;
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: #4A6278;
}

/* Bouton toggle mode sombre */
.dark-mode-toggle {
    background: none;
    border: 2px solid #E0E0E0;
    border-radius: 20px;
    padding: 6px 14px;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    color: var(--seicar-bleu-fonce);
}

.dark-mode-toggle:hover {
    border-color: var(--seicar-bleu);
    background: var(--seicar-gris-clair);
}

body.dark-mode .dark-mode-toggle {
    border-color: #4A6278;
    color: #ECF0F1;
}

body.dark-mode .dark-mode-toggle:hover {
    background: #34495E;
}

body.dark-mode .login-page {
    background: linear-gradient(135deg, #001F3F 0%, #003A66 50%, #1A4A6A 100%);
}

body.dark-mode .login-card {
    background: #2C3E50;
    color: #ECF0F1;
}

body.dark-mode .login-card h1 {
    color: #85CCD4;
}

body.dark-mode .login-subtitle {
    color: #95A5A6;
}

body.dark-mode .login-welcome-msg {
    background: #34495E;
    color: #ECF0F1;
}

body.dark-mode .error-page {
    background: linear-gradient(135deg, #001F3F 0%, #003A66 100%);
}

/* ===== MULTI-SELECT DROPDOWN ===== */
.multiselect {
    position: relative;
    width: 100%;
}

.multiselect-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.95rem;
    background: var(--seicar-blanc);
    transition: var(--transition);
    min-height: 46px;
}

.multiselect-trigger:hover {
    border-color: var(--seicar-bleu);
}

.multiselect.open .multiselect-trigger {
    border-color: var(--seicar-bleu);
    box-shadow: 0 0 0 3px rgba(36, 150, 212, 0.15);
}

.multiselect-trigger-text {
    color: var(--seicar-gris);
    flex: 1;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.multiselect-trigger.has-selection .multiselect-trigger-text {
    color: var(--seicar-noir);
}

.multiselect-arrow {
    transition: var(--transition);
    color: var(--seicar-gris);
}

.multiselect.open .multiselect-arrow {
    transform: rotate(180deg);
}

.multiselect-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--seicar-blanc);
    border: 2px solid var(--seicar-bleu);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    max-height: 250px;
    overflow-y: auto;
    margin-top: -2px;
}

.multiselect.open .multiselect-dropdown {
    display: block;
    animation: fadeIn 0.2s ease;
}

.multiselect-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.multiselect-option:hover {
    background: var(--seicar-gris-clair);
}

.multiselect-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--seicar-bleu-fonce);
    cursor: pointer;
}

.multiselect-option.selected {
    background: #EBF5FB;
}

.multiselect-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 8px;
}

.multiselect-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #D6EAF8;
    color: var(--seicar-bleu-fonce);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.multiselect-tag-remove {
    cursor: pointer;
    font-weight: 700;
    opacity: 0.6;
    transition: var(--transition);
}

.multiselect-tag-remove:hover {
    opacity: 1;
    color: var(--seicar-rouge);
}

/* ===== FILE UPLOAD ===== */
.file-upload {
    border: 2px dashed #BDC3C7;
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: #FAFBFC;
}

.file-upload:hover {
    border-color: var(--seicar-bleu);
    background: #EBF5FB;
}

.file-upload.dragover {
    border-color: var(--seicar-bleu);
    background: #D6EAF8;
}

.file-upload-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.file-upload-text {
    color: var(--seicar-gris);
    font-size: 0.9rem;
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload-preview {
    margin-top: 12px;
    position: relative;
    display: inline-block;
}

.file-upload-preview img {
    max-height: 120px;
    max-width: 100%;
    border-radius: var(--radius-sm);
    border: 2px solid #E0E0E0;
}

.file-upload-preview .remove-preview {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--seicar-rouge);
    color: var(--seicar-blanc);
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.file-upload-preview .remove-preview:hover {
    transform: scale(1.1);
}

::-webkit-scrollbar-track {
    background: var(--seicar-gris-clair);
}

::-webkit-scrollbar-thumb {
    background: var(--seicar-bleu);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--seicar-bleu-fonce);
}