:root {
            --primary-color: #1860DD;
            --primary-dark: #0d47a1;
            --primary-light: #4a90e2;
            --secondary-color: #f8f9fa;
            --text-dark: #2c3e50;
            --text-light: #6c757d;
            --border-radius: 12px;
            --box-shadow: 0 8px 30px rgba(24, 96, 221, 0.1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            color: var(--text-dark);
            display: flex;
            flex-direction: column;
        }

        /* ========================================
           HEADER STYLES
        ======================================== */
        .site-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 0;
            box-shadow: 0 4px 20px rgba(24, 96, 221, 0.3);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-top {
            background: rgba(0, 0, 0, 0.1);
            padding: 10px 0;
            font-size: 14px;
        }

        .header-main {
            padding: 20px 0;
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .logo-icon {
            width: 60px;
            height: 60px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 28px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .logo-text h1 {
            margin: 0;
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .logo-text p {
            margin: 0;
            font-size: 13px;
            opacity: 0.9;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 20px;
            justify-content: flex-end;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 15px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 25px;
            backdrop-filter: blur(10px);
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-weight: 600;
        }

        .btn-logout {
            background: rgba(255, 255, 255, 0.2);
            border: 2px solid white;
            color: white;
            padding: 8px 20px;
            border-radius: 25px;
            text-decoration: none;
            transition: var(--transition);
            font-weight: 500;
        }

        .btn-logout:hover {
            background: white;
            color: var(--primary-color);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* ========================================
           MAIN CONTENT
        ======================================== */
        .main-wrapper {
            flex: 1;
            padding: 40px 0;
        }

        .content-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 40px;
            margin-bottom: 30px;
            animation: fadeInUp 0.6s ease-out;
        }

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

        .content-header {
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 20px;
            margin-bottom: 30px;
        }

        .content-header h2 {
            color: var(--primary-color);
            font-weight: 700;
            font-size: 32px;
            margin-bottom: 10px;
        }

        .content-header p {
            color: var(--text-light);
            font-size: 16px;
        }

        /* ========================================
           FORM STYLES
        ======================================== */
        .form-label {
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .form-control, .form-select {
            border: 2px solid #e0e6ed;
            border-radius: var(--border-radius);
            padding: 12px 15px;
            transition: var(--transition);
            font-size: 15px;
        }

        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(24, 96, 221, 0.15);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
            border: none;
            padding: 15px 40px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(24, 96, 221, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 25px rgba(24, 96, 221, 0.4);
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
        }

        .alert {
            border-radius: var(--border-radius);
            border: none;
            padding: 15px 20px;
            margin-bottom: 25px;
            animation: slideIn 0.5s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(-30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .alert-success {
            background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
            color: #155724;
        }

        .alert-danger {
            background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
            color: #721c24;
        }

        /* ========================================
           RECAP SECTION
        ======================================== */
        .recap-section {
            background: linear-gradient(135deg, #f8f9ff 0%, #e8f0fe 100%);
            border-radius: var(--border-radius);
            padding: 30px;
            margin-top: 20px;
        }

        .recap-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
        }

        .list-group-item {
            border: none;
            padding: 12px 0;
            color: var(--text-dark);
        }

        .creneau-info {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
            color: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 20px rgba(24, 96, 221, 0.3);
        }

        .creneau-info h6 {
            font-weight: 700;
            margin-bottom: 15px;
            font-size: 18px;
        }

        .disponibilite-section {
            background: #f8f9ff;
            border-radius: var(--border-radius);
            padding: 20px;
            margin-top: 25px;
        }

        /* Payment Confirmation Styles (adapted from provided code) */
        .confirm-card {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(15px);
            border-radius: 20px;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            overflow: hidden;
            position: relative;
            animation: scaleIn 0.8s ease-out 0.3s both;
            padding: 3rem;
        }

        .confirm-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: linear-gradient(90deg, #3b82f6, #1d4ed8, #3b82f6);
            background-size: 200% 100%;
            animation: shimmer 4s ease-in-out infinite;
        }

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

        .confirm-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
            border-radius: 50%;
            margin: 0 auto 2rem;
            animation: scaleIn 0.6s ease-out 0.8s both;
        }

        .confirm-icon i {
            font-size: 2rem;
            color: #ffffff;
        }

        .confirm-title {
            font-size: 2rem;
            font-weight: 700;
            color: #1e40af;
            margin-bottom: 1.5rem;
            animation: slideInUp 0.6s ease-out 0.5s both;
        }

        .confirm-message {
            font-size: 1.125rem;
            color: #4b5563;
            line-height: 1.6;
            margin-bottom: 2rem;
            animation: slideInUp 0.6s ease-out 0.6s both;
        }

        .confirm-button,
        .pay-button {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem 2.5rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1.125rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            animation: slideInUp 0.6s ease-out 0.8s both;
            cursor: pointer;
            margin: 0 0.5rem;
            border: none;
        }

        .confirm-button {
            background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
            color: #ffffff;
            box-shadow: 0 5px 20px rgba(59, 130, 246, 0.4);
        }

        .pay-button {
            background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
            color: #ffffff;
            box-shadow: 0 5px 20px rgba(34, 197, 94, 0.4);
            display: none;
        }

        .cancel-button {
            background-color: #dc3545;
            color: white;
            padding: 10px 20px;
            margin-left: 10px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }

        .cancel-button:hover {
            background-color: #c82333;
        }

        .confirm-button::before,
        .pay-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.4s;
        }

        .confirm-button:hover,
        .pay-button:hover {
            transform: translateY(-3px);
            color: #ffffff;
        }

        .confirm-button:hover::before,
        .pay-button:hover::before {
            left: 100%;
        }

        @keyframes slideInUp {
            from { opacity: 0; transform: translateY(50px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes scaleIn {
            from { opacity: 0; transform: scale(0.9); }
            to { opacity: 1; transform: scale(1); }
        }

        /* ========================================
           FOOTER STYLES
        ======================================== */
        .site-footer {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0a2647 100%);
            color: white;
            padding: 50px 0 20px;
            margin-top: auto;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-section h4 {
            font-weight: 700;
            margin-bottom: 20px;
            font-size: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-section h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background: var(--primary-light);
        }

        .footer-section p, .footer-section a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            line-height: 1.8;
            transition: var(--transition);
        }

        .footer-section a:hover {
            color: white;
            padding-left: 5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links i {
            margin-right: 10px;
            color: var(--primary-light);
        }

        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .social-links a:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========================================
           RESPONSIVE
        ======================================== */
        @media (max-width: 768px) {
            .header-main {
                padding: 15px 0;
            }

            .logo-text h1 {
                font-size: 20px;
            }

            .logo-icon {
                width: 50px;
                height: 50px;
                font-size: 24px;
            }

            .header-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }

            .content-card {
                padding: 25px;
            }

            .content-header h2 {
                font-size: 24px;
            }

            .footer-content {
                grid-template-columns: 1fr;
            }

            .confirm-title { font-size: 1.75rem; }
            .confirm-message { font-size: 1rem; }
            .confirm-card { padding: 2rem; }
            .confirm-button, .pay-button { padding: 0.8rem 2rem; font-size: 1rem; }
        }

        @media print {
            .site-header, .site-footer, .btn-logout, .disponibilite-section {
                display: none;
            }
        }

        .fade-in {
            animation: fadeInUp 0.6s ease-out;
        }

        .pulse {
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.02); }
        }