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

        body {
            font-family:  Arial, Helvetica, sans-serif ,'Comic Sans MS';
            /*
            'Noto Sans Arabic', cursive,
               background: linear-gradient(135deg, #1e3a8a 0%, #0ea5e9 50%, #0891b2 100%);
            */
            background: linear-gradient(135deg, #1e3a8a 0%, #0b92d1 50%, #1e3a8a 100%);
            overflow-x: hidden;
        }

        /* Language Switcher */
        .language-switcher {
            position: fixed;
            top: 1px;
            right:3%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 25px;
            padding: 10px;
            backdrop-filter: blur(10px);
        }

        .language-switcher button {
            background: none;
            border: none;
            padding: 8px 15px;
            margin: 0 5px;
            border-radius: 20px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .language-switcher button.active {
            background: #0ea5e9;
            color: white;
        }
/* nav */

        .nav-item-custom {
            color: white;
            text-decoration: none;
            padding: .5rem .5rem;
            border-radius: 25px;
            background: rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
            font-weight: bold;
            margin:.25rem;
        }

        .nav-item-custom:hover {
            background: #0ea5e9;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(14, 165, 233, 0.3);
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 4rem 2rem;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            animation: bounceIn 1s ease-out;
            word-wrap: break-word;
        }

        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-button {
            color: white;
            padding: 15px 30px;
            border: none;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            margin: 10px;
            text-decoration: none;
            display: inline-block;
        }

        
        .cta-button:hover {
            transform: scale(1.1);
            box-shadow: 0 15px 30px rgba(14, 165, 233, 0.4);
            color:white;
        }

        /* Floating Icons */
        .floating-icon {
            position: absolute;
            font-size: 2rem;
            color: rgba(255, 255, 255, 0.3);
            animation: float 6s ease-in-out infinite;
        }

        .floating-icon:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
        .floating-icon:nth-child(2) { top: 60%; right: 5%; animation-delay: 2s; }
        .floating-icon:nth-child(3) { bottom: 30%; left: 5%; animation-delay: 4s; }
        /*.floating-icon:nth-child(4) { top: 20%; right: 20%; animation-delay: 3s; }*/

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

        @keyframes bounceIn {
            0% { transform: scale(0.3); opacity: 0; }
            50% { transform: scale(1.05); }
            70% { transform: scale(0.9); }
            100% { transform: scale(1); opacity: 1; }
        }

        /* Sections */
        .section {
            padding: 4rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        /* Statistics */
        .stats-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            color: white;
            transition: all 0.3s ease;
            cursor: pointer;
            border:1px solid #0ea5e9;
        }

        .stat-card:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.25);
            box-shadow: 0 15px 30px rgba(14, 165, 233, 0.4);
        }

        .stat-number {
            font-size: 3rem;
            font-weight: bold;
            color: #FFD5B3;
            margin-bottom: 0.5rem;
            counter-reset: num;
        }

        /* Why Us Cards */
        .why-us-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            color: white;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            box-shadow:2px 3px 5px #0ea5e9;
        }

        .feature-card:hover {
            border:2px solid #0ea5e9;
            transform: scale(1.05);
            box-shadow:10px 5px 15px #0ea5e9;
        }

        .feature-icon {
            font-size: 3rem;
            color: #f59e0b;
            margin-bottom: 1rem;
        }

        /* Interactive Calculator Builder */
        .calculator-builder {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 2rem;
            margin: 2rem 0;
            text-align: center;
        }

        .calc-screen {
            background: #1e293b;
            border-radius: 15px;
            padding: 2rem .5rem;
            margin: 1rem 0;
            font-family: 'Courier New', monospace;
            color: #0ea5e9;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            border: 3px solid #0ea5e9;
        }

        .calc-display {
            background: #000;
            color: #0ea5e9;
            padding: 20px;
            border-radius: 10px;
            font-size: 2rem;
            width: 100%;
            max-width: 300px;
            margin-bottom: 20px;
            border: 2px solid #0ea5e9;
            text-align: right;
        }

        .calc-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 5px;
            max-width: 300px;
            width: 100%;
        }

        .calc-btn {
            background: #0ea5e9;
            color: white;
            border: none;
            padding: 20px;
            border-radius: 10px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            min-height: 60px;
        }

        .calc-btn:hover {
            background: #0284c7;
            transform: scale(1.05);
        }

        .calc-btn.operator {
            background: #f59e0b;
        }

        .calc-btn.operator:hover {
            background: #d97706;
        }

        .calc-btn.clear {
            background: #ef4444;
        }

        .calc-btn.clear:hover {
            background: #dc2626;
        }

        .calc-instructions {
            background: rgb(159, 166, 176,.6);
            border: 2px solid #FFD5B3;
            border-radius: 15px;
            padding: 1.5rem;
            margin-top: 2rem;
            color: white;
            box-shadow:2px 3px 4px #FFD5B3;
        }



        /* ************************************************* */ 




        /* Course Cards */
        .courses-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .course-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            color: white;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .course-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(from 0deg, transparent, #0ea5e9, transparent);
            animation: rotate 3s linear infinite;
            z-index: -1;
        }

        .course-card::after {
            content: '';
            position: absolute;
            inset: 2px;
            background: rgba(30, 58, 138, 0.8);
            border-radius: 18px;
            z-index: -1;
        }

        @keyframes rotate {
            100% { transform: rotate(360deg); }
        }

        .course-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(246, 247, 248);
        }

        .course-level {
            background: #f59e0b;
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: bold;
            display: inline-block;
            margin-bottom: 1rem;
        }

        .course-icon {
            font-size: 4rem;
            margin-bottom: 1rem;
            display: block;
        }

        .course-duration {
            color: #0ea5e9;
            font-weight: bold;
            margin-top: 1rem;
        }

        /* Student Showcase */
        .student-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .student-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 1.5rem;
            text-align: center;
            color: white;
            transition: all 0.3s ease;
            border:2px solid #0ea5e9;
        }

        .student-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.2);
            border:2px solid white;
        }

        .student-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(45deg, #0ea5e9, #f59e0b);
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: white;
        }

 

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.5rem; }
            .nav { gap: 1rem; }
            .nav-item { padding: 8px 15px; font-size: 0.9rem; }
            .section { padding: 2rem 1rem; }
        }

        /* Arabic RTL Support */
        [dir="rtl"] {
            font-family: 'Cairo', 'Tahoma', sans-serif;
        }

        [dir="rtl"] .language-switcher {
            right: auto;
            left: 20px;
        }

        /* Hidden by default */
        .ar-content {
            display: none;
        }

        [dir="rtl"] .en-content {
            display: none;
        }

        [dir="rtl"] .ar-content {
            display: block;
        }


         /* YouTube Videos Section */
        .youtube-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .video-card {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 1.5rem;
            text-align: center;
            color: white;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            overflow: hidden;
            position: relative;
        }

        .video-card::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(45deg, #0ea5e9, #999690, #0ea5e9);
            border-radius: 20px;
            z-index: -1;
            animation: borderGlow 3s linear infinite;
        }

        @keyframes borderGlow {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }

        .video-card:hover {
            transform: translateY(-10px);
            border-color: #0ea5e9;
        }

        .video-thumbnail {
            width: 100%;
            height: 180px;
            background: linear-gradient(45deg, #1e293b, #374151);
            border-radius: 15px;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: #f59e0b;
            border: 2px solid #0ea5e9;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .video-thumbnail:hover {
            transform: scale(1.05);
            background: linear-gradient(45deg, #0ea5e9, #1e293b);
        }

        .video-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #1e293b ;
        }


               /* Interactive Coding Game */
        .coding-game {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            padding: 2rem;
            margin: 2rem 0;
            text-align: center;
        }

        .game-screen {
            background: #2c3e50;
            border-radius: 15px;
            padding: 2rem;
            margin: 1rem 0;
            font-family: 'Courier New', monospace;
            color: #00ff00;
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }

        .game-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 1rem;
        }

        .game-button {
            background: #e74c3c;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 10px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .game-button:hover {
            background: #c0392b;
            transform: scale(1.1);
        }