:root {
            --primary-color: #2563eb;
            --primary-hover: #1d4ed8;
            --bg-color: #f8fafc;
            --text-color: #334155;
            --heading-color: #0f172a;
            --card-bg: #ffffff;
            --border-color: #e2e8f0;
            --header-bg: rgba(255, 255, 255, 0.95);
            --footer-bg: #1e293b;
            --footer-text: #94a3b8;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
            --font-family: 'Inter', sans-serif;
        }

        html[dir="rtl"] {
            --font-family: 'Cairo', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
            padding-top: 80px;
            /* For fixed header */
        }

        h1,
        h2,
        h3,
        h4 {
            color: var(--heading-color);
            margin-bottom: 1rem;
        }

        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }

        a:hover {
            color: var(--primary-hover);
        }

        /* Reusable Components */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section {
            padding: 5rem 0;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background-color: var(--primary-color);
            margin: 0.5rem auto 0;
            border-radius: 2px;
        }

        .btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 0.375rem;
            font-weight: 600;
            cursor: pointer;
            text-align: center;
            transition: var(--transition);
        }

        .btn:hover {
            background-color: var(--primary-hover);
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-youtube {
            background-color: #ef4444;
            /* Web safe red */
        }

        .btn-youtube:hover {
            background-color: #dc2626;
            /* Darker red on hover */
        }

        .btn-facebook { background-color: #1877f2; }
        .btn-facebook:hover { background-color: #166fe5; }
        .btn-tiktok { background-color: #000000; }
        .btn-tiktok:hover { background-color: #333333; }
        .btn-telegram { background-color: #0088cc; }
        .btn-telegram:hover { background-color: #007ab8; }

        /* Header & Navigation */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: var(--header-bg);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: #000000;
        }

        .logo span {
            color: #000000;
        }

        .nav-center {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .nav-links {
            display: flex;
            gap: 1.25rem;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-color);
            font-weight: 500;
            font-size: 0.95rem;
        }

        .nav-links a:hover {
            color: var(--primary-color);
        }

        .lang-toggle-btn {
            background: none;
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-family: inherit;
        }

        .lang-toggle-btn:hover {
            background-color: var(--primary-color);
            color: white;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--heading-color);
        }

        /* Home Section */
        #home {
            display: flex;
            align-items: center;
            min-height: calc(100vh - 80px);
            padding: 3rem 0;
        }

        .home-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .home-text h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
        }

        .home-text p {
            font-size: 1.125rem;
            margin-bottom: 2rem;
            color: var(--text-color);
        }

        .home-image-container {
            position: relative;
        }

        .home-image-placeholder {
            width: 100%;
            aspect-ratio: 1;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
            border-radius: 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748b;
            font-size: 1.25rem;
            font-weight: 600;
            box-shadow: var(--shadow-md);
            border: 8px solid white;
        }

        /* Lessons Section */
        #lessons {
            background-color: white;
        }

        .lessons-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .lesson-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .lesson-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .lesson-thumbnail {
            width: 100%;
            height: 200px;
            background-color: #cbd5e1;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .lesson-thumbnail::after {
            content: '▶';
            position: absolute;
            background: rgba(0, 0, 0, 0.5);
            color: white;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1.5rem;
        }

        .lesson-content {
            padding: 1.5rem;
        }

        .lesson-title {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }

        /* Courses Section */
        .courses-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .course-card {
            background: var(--card-bg);
            border-radius: 1rem;
            padding: 2rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .course-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-color);
        }

        .course-price {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin: 1rem 0;
        }

        .course-card .btn {
            margin-top: auto;
            width: 100%;
        }

        .course-features {
            list-style: none;
            margin-bottom: 1.5rem;
        }

        .course-features li {
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .course-features li::before {
            content: '✓';
            color: #10b981;
            font-weight: bold;
            margin-right: 0.5rem;
        }

        html[dir="rtl"] .course-features li::before {
            margin-right: 0;
            margin-left: 0.5rem;
        }

        /* Podcast Section */
        #podcast {
            background-color: white;
        }

        .podcast-container {
            background: linear-gradient(to right, #1e293b, #0f172a);
            border-radius: 1.5rem;
            padding: 4rem 2rem;
            text-align: center;
            color: white;
        }

        .podcast-container h2 {
            color: white;
        }

        .podcast-container p {
            color: #cbd5e1;
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .podcast-platforms {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .platform-btn {
            background-color: #ff0000;
            color: #ffffff;
            padding: 0.75rem 2rem;
            border-radius: 2rem;
            text-decoration: none;
            font-weight: 600;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255, 0, 0, 0.3);
        }

        .platform-btn:hover {
            background-color: #cc0000;
            color: #ffffff;
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 0, 0, 0.4);
        }

        .platform-btn::before {
            content: "▶";
            font-size: 1.1rem;
        }

        /* Consultation Section */
        .consultation-form-container {
            max-width: 600px;
            margin: 0 auto;
            background: var(--card-bg);
            padding: 3rem;
            border-radius: 1rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--heading-color);
        }

        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 0.375rem;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        #form-message {
            margin-top: 1rem;
            padding: 1rem;
            border-radius: 0.375rem;
            display: none;
        }

        .success-msg {
            background-color: #d1fae5;
            color: #065f46;
            border: 1px solid #34d399;
        }

        /* Footer */
        footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding: 3rem 0;
            text-align: center;
        }

        .footer-content h3 {
            color: white;
            margin-bottom: 0.5rem;
        }

        /* Social Icons in Footer */
        .footer-social-icons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 1.5rem 0;
        }

        .social-icon-circle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .social-icon-circle:hover {
            transform: translateY(-3px);
            filter: brightness(1.2);
        }

        .social-icon-circle.youtube { background-color: #ff0000; }
        .social-icon-circle.facebook { background-color: #1877f2; }
        .social-icon-circle.tiktok { background-color: #000000; border: 1px solid #333; }
        .social-icon-circle.telegram { background-color: #0088cc; }

        /* Video Modal Styles */
        .modal {
            display: none;
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            backdrop-filter: blur(5px);
            align-items: center;
            justify-content: center;
        }

        .modal.active {
            display: flex;
        }

        .modal-content {
            position: relative;
            width: 90%;
            max-width: 900px;
            aspect-ratio: 16 / 9;
            background: #000;
            border-radius: 1rem;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }

        .modal-content iframe {
            width: 100%;
            height: 100%;
            border: none;
        }

        .close-modal {
            position: absolute;
            top: -40px;
            right: 0;
            color: #fff;
            font-size: 40px;
            font-weight: bold;
            cursor: pointer;
            transition: 0.3s;
        }

        .close-modal:hover {
            color: #ef4444;
        }

        /* Responsive Design */
        @media (max-width: 992px) {
            .home-content {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .home-text h1 {
                font-size: 2.5rem;
            }

            .home-image-container {
                max-width: 500px;
                margin: 0 auto;
            }
        }

        @media (max-width: 768px) {
            .nav-center {
                display: none;
                /* Hide by default on mobile */
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 2rem;
                gap: 1.5rem;
                box-shadow: var(--shadow-md);
                text-align: center;
            }

            .nav-center.active {
                display: flex;
            }

            .nav-links {
                flex-direction: column;
            }

            .mobile-menu-btn {
                display: block;
            }

            .section {
                padding: 3rem 0;
            }

            .consultation-form-container {
                padding: 2rem 1.5rem;
            }
        }