:root {
            --blanc-casse: #fffaf6;
            --bordeaux: #7b1426;
            --dore: #d4a017;
            --gris-fonce: #333333;
            --gris-clair: #f8f9fa;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            color: var(--gris-fonce);
            background-color: var(--blanc-casse);
            padding-top: 80px;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
        }

        /* Navbar */
        .navbar-custom {
            background: rgba(255, 250, 246, 0.98);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
            padding: 1rem 0;
        }

        .navbar-brand {
            font-family: 'Playfair Display', serif;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--bordeaux) !important;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-brand i {
            color: var(--dore);
            font-size: 2rem;
        }

        .nav-link {
            color: var(--gris-fonce) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            position: relative;
        }

        /* Form Container */
        .form-container {
            max-width: 900px;
            margin: 3rem auto;
            background: white;
            border-radius: 30px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }

        .form-header {
            background: linear-gradient(135deg, var(--bordeaux), #a01836);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
        }

        .form-header h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
        }

        .form-header p {
            font-size: 1.1rem;
            opacity: 0.95;
        }

        .form-body {
            padding: 3rem 2rem;
        }

        /* Progress Steps */
        .progress-steps {
            display: flex;
            justify-content: space-between;
            margin-bottom: 3rem;
            position: relative;
        }

        .progress-steps::before {
            content: '';
            position: absolute;
            top: 20px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gris-clair);
            z-index: -1;
        }

        .step {
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
            flex: 1;
        }

        .step-circle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gris-clair);
            color: var(--gris-fonce);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            transition: all 0.3s ease;
            margin-bottom: 0.5rem;
        }

        .step.active .step-circle {
            background: var(--bordeaux);
            color: white;
            transform: scale(1.2);
        }

        .step.completed .step-circle {
            background: var(--dore);
            color: white;
        }

        .step-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--gris-fonce);
            opacity: 0.6;
            text-align: center;
        }

        .step.active .step-label {
            opacity: 1;
            color: var(--bordeaux);
        }

        /* Form Steps */
        .form-step {
            display: none;
        }

        .form-step.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }

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

        /* Form Elements */
        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            font-weight: 600;
            color: var(--bordeaux);
            margin-bottom: 0.5rem;
            display: block;
        }

        .form-label .required {
            color: #dc3545;
        }

        .form-control {
            border: 2px solid var(--gris-clair);
            border-radius: 15px;
            padding: 0.8rem 1.2rem;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            border-color: var(--dore);
            box-shadow: 0 0 0 0.2rem rgba(212, 160, 23, 0.2);
            outline: none;
        }

        .form-select {
            border: 2px solid var(--gris-clair);
            border-radius: 15px;
            padding: 0.8rem 1.2rem;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .form-select:focus {
            border-color: var(--dore);
            box-shadow: 0 0 0 0.2rem rgba(212, 160, 23, 0.2);
            outline: none;
        }

        /* File Upload */
        .file-upload-wrapper {
            position: relative;
            margin-bottom: 1.5rem;
        }

        .file-upload-input {
            display: none;
        }

        .file-upload-label {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            padding: 2rem;
            border: 3px dashed var(--gris-clair);
            border-radius: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
            background: var(--blanc-casse);
        }

        .file-upload-label:hover {
            border-color: var(--dore);
            background: white;
        }

        .file-upload-label.dragover {
            border-color: var(--bordeaux);
            background: rgba(123, 20, 38, 0.05);
        }

        .file-upload-icon {
            font-size: 3rem;
            color: var(--dore);
        }

        .file-upload-text {
            text-align: center;
        }

        .file-upload-text h4 {
            color: var(--bordeaux);
            margin-bottom: 0.5rem;
        }

        .file-upload-text p {
            color: var(--gris-fonce);
            opacity: 0.7;
            margin: 0;
            font-size: 0.9rem;
        }

        /* File Preview */
        .file-preview {
            background: var(--gris-clair);
            border-radius: 15px;
            padding: 1rem;
            margin-top: 1rem;
            display: none;
        }

        .file-preview.show {
            display: block;
        }

        .preview-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.8rem;
            background: white;
            border-radius: 10px;
            margin-bottom: 0.5rem;
        }

        .preview-item:last-child {
            margin-bottom: 0;
        }

        .preview-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .preview-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .preview-icon i {
            font-size: 2rem;
            color: var(--dore);
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
        }

        .preview-info {
            flex-grow: 1;
        }

        .preview-name {
            font-weight: 600;
            color: var(--bordeaux);
            margin-bottom: 0.2rem;
        }

        .preview-size {
            font-size: 0.85rem;
            color: var(--gris-fonce);
            opacity: 0.7;
        }

        .preview-remove {
            width: 35px;
            height: 35px;
            border-radius: 50%;
            background: #dc3545;
            color: white;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .preview-remove:hover {
            transform: scale(1.1);
            background: #c82333;
        }

        /* Buttons */
        .btn-group {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }

        .btn-custom {
            flex: 1;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
        }

        .btn-prev {
            background: var(--gris-clair);
            color: var(--gris-fonce);
        }

        .btn-prev:hover {
            background: var(--gris-fonce);
            color: white;
        }

        .btn-next {
            background: linear-gradient(135deg, var(--bordeaux), #a01836);
            color: white;
        }

        .btn-next:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(123, 20, 38, 0.4);
        }

        .btn-submit {
            background: linear-gradient(135deg, var(--dore), #f0b824);
            color: var(--gris-fonce);
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(212, 160, 23, 0.4);
        }

        /* Alert Messages */
        .alert-custom {
            border-radius: 15px;
            padding: 1.5rem;
            margin-bottom: 2rem;
            border: none;
        }

        .alert-success {
            background: #d4edda;
            color: #155724;
        }

        .alert-error {
            background: #f8d7da;
            color: #721c24;
        }

        /* Success Modal */
        .success-icon {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--dore);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            margin: 0 auto 2rem;
            animation: scaleIn 0.5s ease;
        }

        @keyframes scaleIn {
            from {
                transform: scale(0);
            }
            to {
                transform: scale(1);
            }
        }

        /* Footer */
        .footer-modern {
            background: linear-gradient(180deg, var(--gris-fonce), #1a1a1a);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }

        .footer-title {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--dore);
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            display: block;
            padding: 0.5rem 0;
            transition: all 0.3s ease;
        }

        .footer-link:hover {
            color: var(--dore);
            padding-left: 10px;
        }

        .social-icon {
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: white;
            margin: 0 0.5rem;
            transition: all 0.3s ease;
        }

        .social-icon:hover {
            background: var(--dore);
            color: var(--gris-fonce);
            transform: translateY(-5px);
        }

        @media (max-width: 768px) {
            .form-header h1 {
                font-size: 1.8rem;
            }

            .form-body {
                padding: 2rem 1.5rem;
            }

            .progress-steps {
                flex-wrap: wrap;
            }

            .step {
                flex: 0 0 50%;
                margin-bottom: 1rem;
            }

            .btn-group {
                flex-direction: column;
            }
        }
 .logo {
  height: 100px; /* taille sur ordinateur */
  width: auto;
}

/* Taille sur mobile (moins de 768px) */
@media (max-width: 768px) {
  .logo {
    height: 50px; /* taille sur téléphone */
  }
}