:root {
        --brand-red: #C82B28;
        --brand-red-hover: #A02220;
        --dark-slate: #1e293b;
        --dark-slate-hover: #0f172a;
        --bg-color: #f8fafc;
        --card-bg: #ffffff;
        --text-main: #334155;
        --text-muted: #64748b;
        --border-light: #e2e8f0;
        --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
        --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.08);
        --shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.12);
        --sidebar-width: 250px;
    }

    body.dark-mode {
        --bg-color: #0f172a;
        --card-bg: #1e293b;
        --text-main: #f1f5f9;
        --text-muted: #94a3b8;
        --border-light: #334155;
        --dark-slate: #334155;
        --dark-slate-hover: #475569;
    }

    body {
        font-family: 'Inter', sans-serif;
        background: var(--bg-color);
        color: var(--text-main);
        margin: 0;
        padding: 0;
        text-align: center;
        transition: background 0.3s, color 0.3s;
        height: 100vh;
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }

    h1,
    h2,
    h3 {
        font-family: 'Poppins', sans-serif;
        color: var(--text-main);
        margin-top: 0;
    }

    .navbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 15px 40px;
        background: var(--card-bg);
        box-shadow: var(--shadow-sm);
        z-index: 200;
        flex-shrink: 0;
        transition: background 0.3s, border 0.3s;
    }

    .navbar-left {
        display: flex;
        align-items: center;
        gap: 20px;
    }

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

    .navbar img.logo {
        height: 45px;
        object-fit: contain;
    }

    .menu-hamburger {
        background: none;
        border: none;
        cursor: pointer;
        display: none;
        padding: 10px;
        border-radius: 8px;
        color: var(--text-main);
        transition: background 0.3s;
    }

    .menu-hamburger:hover {
        background: var(--border-light);
    }

    .menu-hamburger svg {
        width: 28px;
        height: 28px;
    }

    .app-container {
        display: flex;
        flex-grow: 1;
        overflow: hidden;
        position: relative;
    }

    .sidebar {
        width: var(--sidebar-width);
        background: var(--card-bg);
        border-right: 1px solid var(--border-light);
        display: flex;
        flex-direction: column;
        padding: 20px 0;
        transition: transform 0.3s ease, background 0.3s;
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        z-index: 100;
        transform: translateX(-100%);
    }

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

    .sidebar-menu {
        list-style: none;
        padding: 0;
        margin: 0;
        text-align: left;
    }

    .sidebar-item {
        padding: 15px 25px;
        cursor: pointer;
        color: var(--text-main);
        font-weight: 500;
        font-family: 'Poppins', sans-serif;
        transition: all 0.2s;
        display: flex;
        align-items: center;
        gap: 12px;
        border-left: 4px solid transparent;
    }

    .sidebar-item svg {
        width: 20px;
        height: 20px;
        color: var(--text-muted);
    }

    .sidebar-item:hover {
        background: var(--bg-color);
        color: var(--brand-red);
    }

    .sidebar-item:hover svg {
        color: var(--brand-red);
    }

    .sidebar-item.active {
        background: rgba(200, 43, 40, 0.1);
        color: var(--brand-red);
        border-left-color: var(--brand-red);
    }

    .sidebar-item.active svg {
        color: var(--brand-red);
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(15, 23, 42, 0.4);
        z-index: 90;
        backdrop-filter: blur(2px);
    }

    .sidebar-overlay.show {
        display: block;
    }

    #main-content {
        flex-grow: 1;
        overflow-y: auto;
        padding-top: 40px;
        padding-bottom: 60px;
        scrollbar-width: none;
        -ms-overflow-style: none;
        width: 100%;
    }

    #main-content::-webkit-scrollbar {
        display: none;
    }

    .dropdown-container {
        position: relative;
    }

    .profile-icon {
        width: 45px;
        height: 45px;
        background: var(--border-light);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        color: var(--text-main);
        transition: 0.3s;
    }

    .profile-icon:hover {
        opacity: 0.8;
    }

    .profile-icon svg {
        width: 22px;
        height: 22px;
    }

    .profile-dropdown {
        display: none;
        position: absolute;
        right: 0;
        top: 60px;
        background: var(--card-bg);
        border: 1px solid var(--border-light);
        border-radius: 12px;
        box-shadow: var(--shadow-md);
        padding: 20px;
        width: 280px;
        text-align: left;
        z-index: 1000;
    }

    .profile-dropdown.show {
        display: block;
    }

    .profile-dropdown .status {
        font-weight: 600;
        color: var(--text-main);
        margin: 0 0 8px 0;
        font-size: 16px;
    }

    .profile-dropdown .user-name {
        color: var(--brand-red);
        font-size: 16px;
        margin: 0 0 4px 0;
        font-weight: 600;
    }

    .profile-dropdown .user-email {
        color: var(--text-muted);
        font-size: 13px;
        margin: 0 0 20px 0;
    }

    .btn-logout {
        width: 100%;
        padding: 12px;
        background-color: var(--brand-red);
        color: white;
        font-size: 15px;
        font-weight: 600;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        transition: background 0.2s;
        font-family: 'Inter', sans-serif;
    }

    .btn-logout:hover {
        background-color: var(--brand-red-hover);
    }

    .settings-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-muted);
        margin-bottom: 8px;
        display: block;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .settings-select {
        width: 100%;
        padding: 10px;
        border-radius: 8px;
        border: 1px solid var(--border-light);
        margin-bottom: 15px;
        background: var(--bg-color);
        color: var(--text-main);
        font-family: 'Inter', sans-serif;
        cursor: pointer;
    }

    #login-screen {
        display: none;
        max-width: 400px;
        margin: 20px auto;
        background: var(--card-bg);
        padding: 40px;
        border-radius: 16px;
        box-shadow: var(--shadow-md);
        border: 1px solid var(--border-light);
        transition: background 0.3s;
    }

    #login-screen p {
        color: var(--text-muted);
        font-size: 14px;
        margin-bottom: 30px;
    }

    .input-group {
        margin-bottom: 20px;
        text-align: left;
    }

    .input-group label {
        font-weight: 600;
        font-size: 13px;
        color: var(--text-main);
        display: block;
        margin-bottom: 8px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .input-group input {
        width: 100%;
        padding: 14px;
        border: 1px solid var(--border-light);
        color: var(--text-main);
        border-radius: 10px;
        font-size: 15px;
        box-sizing: border-box;
        transition: all 0.3s ease;
        font-family: 'Inter', sans-serif;
        background: var(--bg-color);
    }

    .input-group input:focus {
        border-color: var(--brand-red);
        outline: none;
        box-shadow: 0 0 0 3px rgba(200, 43, 40, 0.1);
        background: var(--card-bg);
    }

    .btn-login {
        width: 100%;
        padding: 16px;
        background-color: var(--brand-red);
        color: white;
        font-size: 16px;
        font-weight: 600;
        border: none;
        border-radius: 10px;
        cursor: pointer;
        transition: all 0.3s ease;
        font-family: 'Poppins', sans-serif;
    }

    .btn-login:hover {
        background-color: var(--brand-red-hover);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(200, 43, 40, 0.2);
    }

    #login-msg {
        margin-top: 20px;
        font-weight: 500;
        font-size: 14px;
        padding: 12px;
        border-radius: 8px;
    }

    #loader-screen,
    #app-screen,
    #sync-screen {
        display: none;
    }

    #loader-screen {
        margin-top: 60px;
        font-size: 18px;
        color: var(--brand-red);
        font-weight: 600;
        font-family: 'Poppins', sans-serif;
    }

    .construction-msg {
        margin: 80px auto;
        max-width: 500px;
        padding: 40px;
        background: var(--card-bg);
        border-radius: 16px;
        border: 1px dashed var(--border-light);
        color: var(--text-muted);
        font-size: 18px;
        display: none;
    }

    .construction-msg svg {
        width: 64px;
        height: 64px;
        color: var(--border-light);
        margin-bottom: 20px;
    }

    .barre-outils {
        background: var(--card-bg);
        padding: 25px;
        border-radius: 16px;
        box-shadow: var(--shadow-sm);
        margin: 0 auto 30px auto;
        display: inline-block;
        width: 85%;
        max-width: 900px;
        border: 1px solid var(--border-light);
    }

    .barre-outils h2 {
        margin-bottom: 20px;
        font-size: 22px;
        color: var(--text-main);
    }

    button {
        cursor: pointer;
        border: none;
        border-radius: 8px;
        color: white;
        font-weight: 600;
        transition: all 0.2s ease;
        font-family: 'Inter', sans-serif;
    }

    .btn-global {
        padding: 12px 25px;
        font-size: 15px;
        margin: 5px;
    }

    .btn-imprimer {
        background-color: var(--dark-slate);
        color: white;
    }

    .btn-imprimer:hover {
        background-color: var(--dark-slate-hover);
        transform: translateY(-2px);
    }

    .btn-pdf {
        background-color: var(--brand-red);
    }

    .btn-pdf:hover {
        background-color: var(--brand-red-hover);
        transform: translateY(-2px);
    }

    #searchBar {
        width: 100%;
        padding: 14px 20px;
        font-size: 15px;
        border: 1px solid var(--border-light);
        border-radius: 10px;
        margin-top: 15px;
        box-sizing: border-box;
        background: var(--bg-color);
        color: var(--text-main);
        transition: all 0.3s ease;
        font-family: 'Inter', sans-serif;
    }

    #searchBar:focus {
        border-color: var(--text-main);
        outline: none;
        background: var(--card-bg);
        box-shadow: 0 0 0 3px rgba(200, 43, 40, 0.1);
    }

    #zone-impression {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 25px;
        padding: 30px;
        background: var(--card-bg);
        max-width: 210mm;
        margin: auto;
        box-shadow: var(--shadow-sm);
        border-radius: 16px;
        border: 1px solid var(--border-light);
    }

    .etiquette {
        border: 1px solid var(--border-light);
        padding: 20px;
        text-align: center;
        background: #ffffff;
        color: #1e293b;
        display: inline-block;
        width: 210px;
        border-radius: 12px;
        transition: all 0.3s ease;
        page-break-inside: avoid;
        break-inside: avoid;
        -webkit-column-break-inside: avoid;
    }

    .etiquette:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-5px);
        border-color: var(--brand-red);
    }

    .zone-image {
        position: relative;
        display: inline-block;
        cursor: pointer;
        transition: transform 0.2s;
        padding: 10px;
        background: white;
        border-radius: 8px;
    }

    .zone-image:hover {
        transform: scale(1.03);
    }

    .zone-image .tooltip-info {
        visibility: hidden;
        width: 240px;
        background-color: #1e293b;
        color: #fff;
        text-align: left;
        border-radius: 10px;
        padding: 15px;
        position: absolute;
        z-index: 10;
        bottom: 105%;
        left: 50%;
        margin-left: -135px;
        opacity: 0;
        transition: all 0.3s ease;
        font-size: 13px;
        box-shadow: var(--shadow-md);
        pointer-events: none;
        line-height: 1.5;
    }

    .zone-image .tooltip-info::after {
        content: "";
        position: absolute;
        top: 100%;
        left: 50%;
        margin-left: -6px;
        border-width: 6px;
        border-style: solid;
        border-color: #1e293b transparent transparent transparent;
    }

    .zone-image:hover .tooltip-info {
        visibility: visible;
        opacity: 1;
        bottom: 110%;
    }

    .sn-texte {
        margin: 15px 0 5px 0;
        font-size: 16px;
        font-weight: 700;
        color: #1e293b;
        letter-spacing: 0.5px;
        font-family: 'Poppins', sans-serif;
    }

    .etiquette-actions {
        display: flex;
        gap: 8px;
        margin-top: 15px;
        width: 100%;
        justify-content: center;
    }

    .btn-petit {
        padding: 8px 12px;
        font-size: 12px;
        flex: 1;
        border-radius: 6px;
    }

    .modal {
        display: none;
        position: fixed;
        z-index: 9999;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(15, 23, 42, 0.7);
        backdrop-filter: blur(5px);
        overflow-y: auto;
    }

    .modal-content {
        background-color: var(--card-bg);
        margin: 8% auto;
        padding: 35px;
        border-radius: 16px;
        width: 90%;
        max-width: 450px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
        text-align: left;
        position: relative;
        animation: ouvertureModal 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        display: flex;
        flex-direction: column;
        max-height: 85dvh;
        overflow-y: auto;
    }

    @keyframes ouvertureModal {
        from {
            transform: translateY(-40px) scale(0.95);
            opacity: 0;
        }

        to {
            transform: translateY(0) scale(1);
            opacity: 1;
        }
    }

    .close-btn {
        position: absolute;
        top: 20px;
        right: 25px;
        color: var(--text-muted);
        font-size: 28px;
        font-weight: bold;
        cursor: pointer;
        transition: 0.2s;
        line-height: 1;
    }

    .close-btn:hover {
        color: var(--brand-red);
    }

    .modal-titre {
        margin-top: 0;
        color: var(--text-main);
        border-bottom: 2px solid var(--border-light);
        padding-bottom: 15px;
        font-size: 20px;
    }

    .info-line {
        margin: 15px 0;
        font-size: 15px;
        border-bottom: 1px solid var(--border-light);
        padding-bottom: 10px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .info-label {
        font-weight: 600;
        color: var(--text-muted);
    }

    .info-valeur {
        color: var(--text-main);
        font-weight: 500;
        text-align: right;
        max-width: 60%;
        word-wrap: break-word;
    }

    .valeur-highlight {
        color: var(--brand-red);
        font-weight: 700;
        font-size: 16px;
    }

    @media print {
        @page {
            margin: 5mm;
        }

        body,
        .app-container,
        #main-content {
            height: auto !important;
            overflow: visible !important;
            display: block !important;
            padding: 0 !important;
            background: white !important;
        }

        .navbar,
        #login-screen,
        .barre-outils,
        .etiquette-actions,
        .tooltip-info,
        .modal,
        #nav-actions,
        .menu-hamburger,
        .sidebar,
        .sidebar-overlay {
            display: none !important;
        }

        #zone-impression {
            display: block;
            text-align: center;
            box-shadow: none;
            border: none;
            max-width: 100%;
            padding: 0;
            background: white !important;
        }

        body.print-mode-single .etiquette {
            display: none !important;
        }

        body.print-mode-single .etiquette.active-print {
            display: inline-block !important;
            border: none;
            margin: 0;
            padding: 0;
            transform: none !important;
        }

        /* Forcer le QR code à faire au maximum la taille de l'étiquette avec une zone de silence */
        .etiquette .zone-image > div {
            width: 20mm !important;
            height: 20mm !important;
            max-width: 20mm !important;
            max-height: 20mm !important;
            margin: 0 auto !important;
        }
        
        .etiquette .zone-image > div img,
        .etiquette .zone-image > div canvas {
            max-width: 100% !important;
            max-height: 100% !important;
            width: 100% !important;
            height: 100% !important;
            object-fit: contain !important;
            /* On ne force PAS le display: block ici car la librairie cache le canvas et montre l'image */
        }

        .etiquette .zone-image {
            padding: 0 !important;
            margin: 0 !important;
            border: none !important;
            display: block !important;
            width: 20mm !important;
            height: 20mm !important;
            box-sizing: border-box !important;
        }
        
        /* Afficher le texte du N° de Série sous le QR code */
        .etiquette .sn-texte {
            display: block !important;
            font-size: 7pt !important;
            font-family: monospace !important;
            text-align: center !important;
            margin-top: 4mm !important;
            line-height: 1.2 !important;
            color: #334155 !important;
        }
        
        .etiquette {
            border: none !important;
            margin: 0 auto !important;
            padding: 0 !important;
            width: 210mm !important;
            height: 297mm !important;
            overflow: hidden;
            page-break-after: always !important;
            box-shadow: none !important;
            transform: none !important;
            background: white !important;
            display: flex !important;
            flex-direction: column !important;
            justify-content: center !important;
            align-items: center !important;
            box-sizing: border-box !important;
        }

        .etiquette:last-child {
            page-break-after: auto !important;
        }
    }

    .pdf-mode #zone-impression {
        display: block !important;
        text-align: center;
        box-shadow: none;
        border: none;
        padding: 0;
        max-width: 100%;
        background: white !important;
    }

    .pdf-mode .etiquette {
        display: inline-table !important;
        margin: 15px;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        border: 1px dashed #ccc;
        box-shadow: none !important;
        background: white !important;
    }

    .pdf-mode .tooltip-info {
        display: none !important;
    }

    /* ==== RESPONSIVE DESIGN (MOBILES & TABLETTES) ==== */
    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            gap: 15px;
            padding: 15px 20px;
        }

        .navbar-left {
            width: 100%;
            justify-content: space-between;
        }
        
        .navbar-right {
            width: 100%;
            justify-content: flex-end;
            gap: 15px;
        }

        .barre-outils {
            width: 90% !important;
            padding: 15px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .barre-outils button, .barre-outils input {
            width: 100%;
            margin: 0;
            box-sizing: border-box;
        }

        .info-line {
            flex-direction: column;
            align-items: flex-start;
            gap: 5px;
        }

        .info-valeur {
            max-width: 100%;
            text-align: left;
        }

        .etiquette-actions {
            flex-direction: column;
        }

        .btn-petit {
            width: 100%;
            box-sizing: border-box;
        }
        
        .modal-content {
            width: 95%;
            margin: 5% auto;
            padding: 20px;
            padding-bottom: calc(env(safe-area-inset-bottom) + 15px);
        }

        /* Laisser la hauteur de la caméra du scanner s'adapter (Anti-déformation) */
        #reader, #reader video {
            height: auto !important;
        }

        /* Stock QR Vierges fixes on mobile */
        #modal-qr-vierges table tr td div[style*="flex-direction: column"] > div {
            flex-direction: column;
            align-items: flex-start !important;
        }
        
        #modal-qr-vierges table tr td div[style*="flex-direction: column"] > div select,
        #modal-qr-vierges table tr td div[style*="flex-direction: column"] > div input,
        #modal-qr-vierges table tr td div[style*="flex-direction: column"] > div button {
            width: 100%;
            margin-top: 5px;
        }
        
        /* Ajustement des boutons de validation dans la Sync */
        #sync-preview-container > div:last-child {
            flex-direction: column;
            align-items: stretch !important;
            gap: 10px;
        }
        
        #sync-preview-container > div:last-child > div:last-child {
            display: flex;
            flex-direction: column;
            width: 100%;
            gap: 10px;
        }
    }

    /* ==== MODERN RADIO BUTTONS FOR EQUIPEMENT CHOICE ==== */
    .modern-radio-group {
        display: flex;
        gap: 20px;
        justify-content: center;
        width: 100%;
        margin-top: 10px;
    }

    .modern-radio-label {
        flex: 1;
        position: relative;
        cursor: pointer;
        margin: 0;
    }

    .modern-radio-label input[type="radio"] {
        position: absolute;
        opacity: 0;
        cursor: pointer;
    }

    .modern-radio-card {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 12px;
        padding: 20px 15px;
        background: linear-gradient(145deg, var(--card-bg), var(--bg-color));
        border: 2px solid transparent;
        border-radius: 16px;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-muted);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 4px 15px rgba(0,0,0,0.05), inset 0 2px 4px rgba(255,255,255,0.05);
        position: relative;
        overflow: hidden;
        z-index: 1;
    }
    
    .modern-radio-card::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0; bottom: 0;
        background: linear-gradient(135deg, rgba(200, 43, 40, 0.1), rgba(200, 43, 40, 0.02));
        opacity: 0;
        z-index: -1;
        transition: opacity 0.4s ease;
    }

    .modern-radio-label input[type="radio"]:checked + .modern-radio-card {
        border-color: var(--brand-red);
        color: var(--text-main);
        box-shadow: 0 8px 25px rgba(200, 43, 40, 0.25), 0 0 0 4px rgba(200, 43, 40, 0.1);
        transform: translateY(-4px);
    }
    
    .modern-radio-label input[type="radio"]:checked + .modern-radio-card::before {
        opacity: 1;
    }
    
    .modern-radio-label input[type="radio"]:checked + .modern-radio-card .icon-emoji {
        transform: scale(1.2);
        filter: drop-shadow(0 4px 6px rgba(200,43,40,0.3));
    }

    .modern-radio-label:hover .modern-radio-card {
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    }

    .icon-emoji {
        font-size: 32px;
        transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        display: inline-block;
    }