/* ===== CSS VARIABLES ===== */
        :root {
            --primary: #ff6b00;
            --primary-light: #fff0e6;
            --primary-dark: #e05e00;
            --whatsapp: #25D366;
            --whatsapp-dark: #128C7E;
            --dark: #1a1a1a;
            --light: #ffffff;
            --bg-color: #f4f7f6;
            --gray-light: #e2e8f0;
            --text-dark: #2d3748;
            --text-muted: #718096;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s ease;
        }

        /* Reset and Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--bg-color);
            color: var(--text-dark);
            line-height: 1.6;
        }
        
        .container {
            max-width: 900px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        /* Header Styles */
        .top-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }

        .back-link {
            color: var(--text-muted);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            transition: var(--transition);
        }

        .back-link:hover {
            color: var(--primary);
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .section-header h2 {
            color: var(--dark);
            font-size: 2.8rem;
            margin-bottom: 5px;
            font-weight: 800;
            letter-spacing: -1px;
        }

        .section-header h2 span {
            color: var(--primary);
        }
        
        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
        }
        
        /* Form Card Styles */
        .form-section {
            background-color: var(--light);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 35px;
            margin-bottom: 30px;
            border-top: 4px solid var(--primary);
        }

        .section-title {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--dark);
            margin-bottom: 25px;
            font-size: 1.4rem;
            border-bottom: 2px solid var(--gray-light);
            padding-bottom: 15px;
        }

        .section-title i {
            color: var(--primary);
            background: var(--primary-light);
            padding: 10px;
            border-radius: 50%;
            font-size: 1.1rem;
        }

        /* Grid Layouts */
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .form-group {
            margin-bottom: 15px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-dark);
            font-size: 0.95rem;
        }
        
        /* Modern Inputs */
        .input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .input-wrapper i {
            position: absolute;
            left: 15px;
            color: #a0aec0;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control {
            width: 100%;
            padding: 14px 15px 14px 45px;
            border: 2px solid var(--gray-light);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
            background-color: #f8fafc;
            color: var(--dark);
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: var(--light);
            box-shadow: 0 0 0 4px rgba(255, 107, 0, 0.1);
        }

        .form-control:focus + i,
        .input-wrapper:focus-within i {
            color: var(--primary);
        }
        
        /* Select specific styling */
        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ff6b00' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 15px center;
            background-size: 1em;
        }

        textarea.form-control {
            padding-left: 15px; /* No icon for textarea */
            resize: vertical;
            min-height: 100px;
        }
        
        /* Modern Checkbox Grid for Services */
        .service-checkboxes {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 15px;
            margin-top: 10px;
        }
        
        .checkbox-group input {
            display: none;
        }
        
        .checkbox-group label {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 15px;
            background: var(--bg-color);
            border: 2px solid var(--gray-light);
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
            text-align: center;
            height: 100%;
            margin: 0;
            user-select: none;
        }
        
        .checkbox-group input:checked + label {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
            box-shadow: 0 4px 10px rgba(255, 107, 0, 0.15);
        }

        .checkbox-group label:hover {
            border-color: var(--primary);
        }
        
        /* AI Mechanic Styles */
        .ai-diagnostic-box {
            background: linear-gradient(135deg, #fff5eb 0%, #fff0e6 100%);
            border: 1px solid #ffd4b8;
            border-radius: var(--radius);
            padding: 20px;
            margin-bottom: 25px;
            position: relative;
            overflow: hidden;
        }
        
        .ai-diagnostic-box h4 {
            color: var(--primary-dark);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.1rem;
        }
        
        .btn-ai {
            background: linear-gradient(135deg, #ff6b00 0%, #e05e00 100%);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            margin-top: 15px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-ai:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
        }
        
        .btn-ai:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }
        
        .ai-result-box {
            margin-top: 15px;
            padding: 15px;
            background: white;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
            font-size: 0.95rem;
            color: var(--text-dark);
        }
        
        .ai-loading {
            display: inline-block;
            width: 16px;
            height: 16px;
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s ease-in-out infinite;
        }
        
        @keyframes spin { to { transform: rotate(360deg); } }

        /* Submit Button */
        .form-submit {
            text-align: center;
            margin-top: 40px;
        }
        
        .submit-btn {
            background-color: var(--whatsapp);
            color: white;
            border: none;
            padding: 16px 40px;
            font-size: 1.2rem;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 700;
            letter-spacing: 0.5px;
            box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            width: 100%;
            max-width: 400px;
        }
        
        .submit-btn:hover {
            background-color: var(--whatsapp-dark);
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(37, 211, 102, 0.4);
        }
        
        /* See More Button Styles */
        .see-more-btn {
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            margin-top: 20px;
            padding: 10px 20px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: 50px;
            transition: var(--transition);
            background-color: var(--primary-light);
        }

        .see-more-btn:hover {
            background-color: var(--primary);
            color: white;
        }

        .see-more-btn i {
            transition: transform 0.3s ease;
        }

        .see-more-btn.expanded i {
            transform: rotate(180deg);
        }
        
        .additional-service {
            display: none;
        }
        
        /* Date Status Styles */
        .date-status {
            margin-top: 10px;
            font-size: 0.9rem;
            padding: 10px 15px;
            border-radius: 6px;
            display: none;
            font-weight: 500;
        }
        
        .date-available {
            background-color: #e8f5e9;
            color: #2e7d32;
            border-left: 4px solid #4caf50;
        }
        
        .date-full {
            background-color: #ffebee;
            color: #c62828;
            border-left: 4px solid #f44336;
        }
        
        .date-warning {
            background-color: #fff8e1;
            color: #f57f17;
            border-left: 4px solid #ffb300;
        }
        
        /* Responsive Adjustments */
        @media (max-width: 768px) {
            .container {
                padding: 20px 15px;
            }
            .form-section {
                padding: 25px 20px;
            }
            .section-header h2 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 480px) {
            .service-checkboxes {
                grid-template-columns: 1fr 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }