/* Variables CSS */
        :root {
            --primary-red: #F23322;
            --dark-red: #C41E3A;
            --darker-red: #A0001C;
            --light-gray: #F8F9FA;
            --medium-gray: #DEE2E6;
            --text-primary: #212529;
            --text-secondary: #6C757D;
            --white: #FFFFFF;
            --success: #10B981;
            --warning: #F59E0B;
            --error: #EF4444;
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, var(--primary-red) 0%, var(--darker-red) 100%);
            min-height: 100vh;
            padding: 20px 0;
        }

        .opening-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }

        .opening-card {
            background: var(--white);
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
            overflow: hidden;
            position: relative;
        }

        .opening-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--primary-red), var(--dark-red));
        }

        /* Header */
        .opening-header {
            text-align: center;
            padding: 40px 40px 20px;
            background: linear-gradient(135deg, rgba(242, 51, 34, 0.05), rgba(255, 255, 255, 0.1));
        }

        .logo-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 24px;
        }

        .logo-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary-red), var(--dark-red));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 700;
            font-size: 28px;
            box-shadow: var(--shadow-lg);
        }

        .logo-text {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .opening-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .opening-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* Progress Steps */
        .progress-container {
            padding: 30px 40px;
            background: var(--light-gray);
            border-bottom: 1px solid var(--medium-gray);
        }

        .progress-steps {
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            margin-bottom: 20px;
        }

        .progress-line {
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--medium-gray);
            z-index: 1;
        }

        .progress-fill {
            position: absolute;
            top: 50%;
            left: 0;
            height: 2px;
            background: var(--primary-red);
            width: 0%;
            z-index: 2;
            transition: width 0.6s ease;
        }

        .step {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--white);
            border: 3px solid var(--medium-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-secondary);
            position: relative;
            z-index: 3;
            transition: all 0.3s ease;
        }

        .step.active {
            border-color: var(--primary-red);
            background: var(--primary-red);
            color: var(--white);
            box-shadow: var(--shadow-md);
        }

        .step.completed {
            border-color: var(--success);
            background: var(--success);
            color: var(--white);
        }

        .step-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 15px;
        }

        .step-label {
            text-align: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            width: 140px;
        }

        .step-label.active {
            color: var(--primary-red);
        }

        .step-label.completed {
            color: var(--success);
        }

        /* Form Content */
        .form-content {
            padding: 40px;
        }

        .form-section {
            display: none;
        }

        .form-section.active {
            display: block;
            animation: slideIn 0.5s ease;
        }

        @keyframes slideIn {
            0% {
                opacity: 0;
                transform: translateX(30px);
            }
            100% {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section-description {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .form-label.required::after {
            content: ' *';
            color: var(--error);
        }

        .form-input {
            width: 100%;
            padding: 16px 20px;
            border: 2px solid var(--medium-gray);
            border-radius: 12px;
            font-size: 16px;
            background: var(--white);
            transition: all 0.2s ease;
            font-family: inherit;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary-red);
            box-shadow: 0 0 0 4px rgba(242, 51, 34, 0.1);
        }

        .form-input.error {
            border-color: var(--error);
            box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
        }

        .form-input.valid {
            border-color: var(--success);
            box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
        }

        .input-icon {
            position: relative;
        }

        .input-icon .form-input {
            padding-left: 50px;
        }

        .input-icon::before {
            content: attr(data-icon);
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 18px;
            color: var(--text-secondary);
            z-index: 1;
        }

        .error-message {
            font-size: 12px;
            color: var(--error);
            margin-top: 4px;
            display: none;
        }

        .error-message.show {
            display: block;
        }

        .success-message {
            font-size: 12px;
            color: var(--success);
            margin-top: 4px;
            display: none;
        }

        .success-message.show {
            display: block;
        }

        /* Password Strength */
        .password-container {
            position: relative;
        }

        .password-toggle {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 4px;
            font-size: 18px;
        }

        .password-strength {
            margin-top: 8px;
        }

        .strength-bar {
            width: 100%;
            height: 4px;
            background: var(--medium-gray);
            border-radius: 2px;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .strength-fill {
            height: 100%;
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .strength-text {
            font-size: 12px;
            font-weight: 600;
        }

        .strength-weak { 
            background: var(--error); 
            color: var(--error);
        }

        .strength-medium { 
            background: var(--warning); 
            color: var(--warning);
        }

        .strength-strong { 
            background: var(--success); 
            color: var(--success);
        }

        /* Form Actions */
        .form-actions {
            display: flex;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--medium-gray);
        }

        .btn-back {
            flex: 1;
            background: var(--light-gray);
            color: var(--text-primary);
            border: 1px solid var(--medium-gray);
            padding: 16px 24px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

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

        .btn-back:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .btn-next {
            flex: 2;
            background: var(--primary-red);
            color: var(--white);
            border: none;
            padding: 16px 24px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-next:hover:not(:disabled) {
            background: var(--dark-red);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-next:disabled {
            background: var(--medium-gray);
            color: var(--text-secondary);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        /* Loading spinner */
        .loading-spinner {
            width: 20px;
            height: 20px;
            border: 2px solid transparent;
            border-top: 2px solid currentColor;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

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

        /* Information boxes */
        .info-box {
            background: rgba(59, 130, 246, 0.1);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: 12px;
            padding: 16px;
            margin-bottom: 24px;
        }

        .info-box h4 {
            color: #3B82F6;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .info-box p {
            font-size: 12px;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Success Page */
        .success-section {
            text-align: center;
            padding: 60px 40px;
        }

        .success-checkmark {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--success);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 32px;
            color: var(--white);
            font-size: 40px;
            animation: scaleIn 0.8s ease-out;
        }

        @keyframes scaleIn {
            0% {
                transform: scale(0);
                opacity: 0;
            }
            100% {
                transform: scale(1);
                opacity: 1;
            }
        }

        .success-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .success-message {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .next-steps {
            background: var(--light-gray);
            border-radius: 12px;
            padding: 24px;
            margin: 24px 0;
            text-align: left;
        }

        .next-steps h4 {
            color: var(--text-primary);
            margin-bottom: 16px;
            font-size: 16px;
        }

        .next-steps ul {
            list-style: none;
            padding: 0;
        }

        .next-steps li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .btn-restart {
            background: var(--primary-red);
            color: var(--white);
            border: none;
            padding: 16px 32px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-restart:hover {
            background: var(--dark-red);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* Document Upload Styles */
        .document-upload-section {
            margin-bottom: 32px;
            border: 1px solid var(--medium-gray);
            border-radius: 16px;
            padding: 24px;
            background: var(--white);
        }

        .document-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .document-title i {
            color: var(--primary-red);
        }

        .required-badge {
            background: var(--error);
            color: var(--white);
            font-size: 11px;
            padding: 4px 8px;
            border-radius: 12px;
            font-weight: 500;
        }

        .optional-badge {
            background: var(--text-secondary);
            color: var(--white);
            font-size: 11px;
            padding: 4px 8px;
            border-radius: 12px;
            font-weight: 500;
        }

        .document-description {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .upload-zone {
            border: 2px dashed var(--medium-gray);
            border-radius: 12px;
            padding: 40px 20px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
            background: var(--light-gray);
        }

        .upload-zone:hover {
            border-color: var(--primary-red);
            background: rgba(242, 51, 34, 0.05);
        }

        .upload-zone.dragover {
            border-color: var(--primary-red);
            background: rgba(242, 51, 34, 0.1);
            transform: scale(1.02);
        }

        .upload-zone.uploaded {
            border-color: var(--success);
            background: rgba(16, 185, 129, 0.1);
        }

        .upload-content i {
            font-size: 48px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            display: block;
        }

        .upload-content p {
            font-size: 16px;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .upload-link {
            color: var(--primary-red);
            font-weight: 600;
            text-decoration: underline;
        }

        .upload-content small {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .upload-status {
            margin-top: 12px;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            display: none;
        }

        .upload-status.success {
            background: rgba(16, 185, 129, 0.1);
            color: var(--success);
            border: 1px solid rgba(16, 185, 129, 0.3);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .upload-status.error {
            background: rgba(239, 68, 68, 0.1);
            color: var(--error);
            border: 1px solid rgba(239, 68, 68, 0.3);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .documents-actions {
            display: flex;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--medium-gray);
        }

        .file-info {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            background: var(--white);
            border: 1px solid var(--medium-gray);
            border-radius: 8px;
            margin-top: 8px;
        }

        .file-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-red);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 16px;
        }

        .file-details h5 {
            margin: 0 0 4px 0;
            font-size: 14px;
            color: var(--text-primary);
        }

        .file-details span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .remove-file {
            background: none;
            border: none;
            color: var(--error);
            cursor: pointer;
            padding: 4px;
            border-radius: 4px;
            margin-left: auto;
        }

        .remove-file:hover {
            background: rgba(239, 68, 68, 0.1);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .opening-container {
                padding: 10px;
            }

            .opening-header {
                padding: 30px 20px 15px;
            }

            .logo-icon {
                width: 56px;
                height: 56px;
                font-size: 24px;
            }

            .logo-text {
                font-size: 28px;
            }

            .opening-title {
                font-size: 24px;
            }

            .progress-container {
                padding: 20px;
            }

            .step {
                width: 40px;
                height: 40px;
                font-size: 14px;
            }

            .step-label {
                font-size: 12px;
                width: 100px;
            }

            .form-content {
                padding: 30px 20px;
            }

            .form-row {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

        /* Animations d'entrée */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease forwards;
        }

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

        .opening-header { animation-delay: 0.1s; }
        .progress-container { animation-delay: 0.2s; }
        .form-content { animation-delay: 0.3s; }