:root {
            --primary-color: #4a6bff;
            --primary-dark: #3a5bed;
            --secondary-color: #f8f9fa;
            --text-color: #333;
            --light-text: #666;
            --error-color: #e74c3c;
            --success-color: #2ecc71;
            --dark-color: #2c3e50;
            --light-gray: #e9ecef;
            --border-radius: 10px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Tajawal', Arial, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        /* الهيدر المحسن */
        .main-header {
            background: linear-gradient(135deg, var(--dark-color) 0%, #1a2530 100%);
            color: white;
            padding: 1rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            position: relative;
            overflow: hidden;
        }
        
        .main-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,192C1248,192,1344,128,1392,96L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: cover;
            background-position: center;
        }
        
        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        
        .logo::before {
            content: "★";
            margin-left: 8px;
            color: var(--primary-color);
        }
        
        .back-btn {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: white;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            font-weight: 500;
            box-shadow: 0 4px 10px rgba(74, 107, 255, 0.3);
        }
        
        .back-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(74, 107, 255, 0.4);
        }
        
        .back-btn::before {
            content: "←";
            margin-right: 8px;
        }
        
        /* المحتوى الرئيسي */
        .main-content {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 2rem;
        }
        
        /* نموذج الاتصال المحسن */
        .contact-container {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            overflow: hidden;
            transition: var(--transition);
            width: 100%;
            max-width: 600px;
        }
        
        .contact-container:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }
        
        .contact-form {
            padding: 40px;
        }
        
        .form-title {
            text-align: center;
            margin-bottom: 30px;
            color: var(--dark-color);
            font-size: 1.8rem;
        }
        
        .form-subtitle {
            text-align: center;
            margin-bottom: 30px;
            color: var(--light-text);
        }
        
        .form-group {
            margin-bottom: 25px;
            position: relative;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        .form-control {
            width: 100%;
            padding: 15px 18px;
            border: 2px solid var(--light-gray);
            border-radius: 8px;
            font-size: 16px;
            transition: var(--transition);
            font-family: 'Tajawal', Arial, sans-serif;
            background-color: #fcfcfc;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(74, 107, 255, 0.15);
            background-color: white;
        }
        
        .form-control.error {
            border-color: var(--error-color);
        }
        
        .form-control.success {
            border-color: var(--success-color);
        }
        
        .validation-message {
            font-size: 0.85rem;
            margin-top: 5px;
            display: none;
        }
        
        .validation-message.error {
            color: var(--error-color);
            display: block;
        }
        
        .validation-message.success {
            color: var(--success-color);
            display: block;
        }
        
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        
        .submit-btn {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: white;
            border: none;
            padding: 16px 25px;
            font-size: 16px;
            border-radius: 8px;
            cursor: pointer;
            width: 100%;
            transition: var(--transition);
            font-family: 'Tajawal', Arial, sans-serif;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(74, 107, 255, 0.3);
            position: relative;
            overflow: hidden;
        }
        
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(74, 107, 255, 0.4);
        }
        
        .submit-btn:active {
            transform: translateY(-1px);
        }
        
        .submit-btn:disabled {
            background: #a0a0a0;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        .submit-btn .spinner {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255,255,255,0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s ease-in-out infinite;
            margin-left: 10px;
            vertical-align: middle;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        .form-message {
            padding: 15px;
            margin: 20px 0;
            border-radius: 8px;
            text-align: center;
            display: none;
            animation: fadeIn 0.5s;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .error-message {
            background-color: #fde8e8;
            color: var(--error-color);
            border: 1px solid #f5c6cb;
        }
        
        .success-message {
            background-color: #e8fdf1;
            color: var(--success-color);
            border: 1px solid #c3e6cb;
        }
        
        /* الفوتر المحسن */
        .main-footer {
            background: linear-gradient(135deg, var(--dark-color) 0%, #1a2530 100%);
            color: white;
            text-align: center;
            padding: 2rem;
            position: relative;
            overflow: hidden;
        }
        
        .main-footer::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,192C1248,192,1344,128,1392,96L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: cover;
            background-position: center;
        }
        
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        .copyright {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        /* تحسينات للهواتف */
        @media (max-width: 768px) {
            .main-content {
                padding: 1rem;
            }
            
            .contact-container {
                border-radius: 0;
            }
            
            .contact-form {
                padding: 25px;
            }
            
            .form-control {
                padding: 12px 15px;
            }
            
            .header-content {
                flex-direction: column;
                gap: 0.8rem;
            }
            
            .logo {
                font-size: 1.6rem;
            }
        }