.user-dropdown {
  position: absolute;
  top: 120px;
  right: 60px;
  z-index: 20;
}
.user-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.user-dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  background: #fff;
  min-width: 140px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  border-radius: 8px;
  overflow: hidden;
}
.user-dropdown-content a, .user-dropdown-content button {
  display: block;
  padding: 12px 18px;
  color: #222;
  text-decoration: none;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-size: 1rem;
}
.user-dropdown-content a:hover, .user-dropdown-content button:hover {
  background: #f0f0f0;
}
.user-dropdown.open .user-dropdown-content {
  display: block;
}
:root {
            --primary-color: #1479EB;
            --dark-color: #1d1d1d;
            --light-color: #ffffff;
            --text-color: #666666;
            --section-padding: 100px 0;
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: 'Raleway', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
            padding-top: 54px;
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-size: 42px;
            text-transform: uppercase;
        }

        .section-title p {
            font-size: 20px;
            color: var(--text-color);
        }

        .btn {
            display: inline-block;
            padding: 16px 35px;
            background: var(--primary-color);
            color: var(--light-color);
            font-weight: 700;
            text-transform: uppercase;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-size: 14px;
            letter-spacing: 1px;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .btn:hover {
            background: var(--dark-color);
            color: var(--light-color);
        }

        .btn-light {
            background: var(--light-color);
            color: var(--dark-color);
            border: 2px solid var(--light-color);
        }

        .btn-light:hover {
            background: var(--dark-color);
            color: var(--light-color);
            border-color: var(--dark-color);
        }

        /* Header Styles */
        .preview-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background-color: #262626;
            padding: 0 20px;
            height: 54px;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
        }

        .preview-header strong {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            color: #e0e0e0;
            font-weight: 500;
        }

        .preview-header a {
            margin-left: auto;
            box-shadow: 0 2px 0 #6f9a37;
            background-color: #82b440;
            font-size: 14px;
            padding: 5px 20px;
            line-height: 1.5;
            color: #262626;
            border-radius: 4px;
            font-weight: 500;
            text-decoration: none;
        }

        .header {
            background-color: var(--light-color);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.18);
            position: fixed;
            top: 54px;
            left: 0;
            width: 100%;
            z-index: 999;
        }

        .header-top {
            background: var(--dark-color);
            padding: 10px 0;
        }

        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .contact-info {
            display: flex;
            gap: 30px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            color: rgba(255, 255, 255, 0.7);
        }

        .contact-item i {
            color: var(--primary-color);
            font-size: 22px;
            margin-right: 10px;
        }

        .contact-item span {
            font-weight: 500;
        }

        .header-main {
            padding: 15px 0;
        }

        .header-main .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo img {
            height: 180;
            width: 80;
        }

        .menu-toggle {
            display: none;
            background: var(--primary-color);
            color: var(--light-color);
            border: none;
            padding: 8px 12px;
            font-size: 18px;
            cursor: pointer;
        }

        .nav-menu {
            display: flex;
            list-style: none;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-menu li a {
            display: block;
            padding: 10px 20px;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 600;
            text-transform: uppercase;
            position: relative;
            transition: var(--transition);
        }

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

        .nav-menu li a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary-color);
            transition: var(--transition);
        }

        .nav-menu li a:hover:after {
            width: 100%;
        }

        /* Hero Slider */
        .hero-slider {
            height: 900px;
            position: relative;
            overflow: hidden;
            margin-top: 54px;
        }

        .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            box-shadow: #000000  0px 0px 0px 0px inset, rgba(0, 0, 0, 0.5) 0px 0px 0px 10000px inset;
            background-size: cover;
            background-position: center;
            opacity: 0;
            transition: opacity 1s ease;
            display: flex;
            align-items: center;
        }

        .slide.active {
            opacity: 1;
            z-index: 1;
        }

        .slide-1 {
            background-image: linear-gradient(rgba(0, 0, 0, 0.7), url('https://images.unsplash.com/photo-1519501025264-65ba15a82390?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80'));
        }

        .slide-2 {
            background-image: linear-gradient(rgba(0, 0, 0, 0.7), url('https://images.unsplash.com/photo-1518828268484-5a47dcd0da63?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80'));
        }

        .slide-3 {
            background-image: linear-gradient(rgba(0, 0, 0, 0.7), url('https://images.unsplash.com/photo-1519389950473-47ba0277781c?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80'));
        }

        .slide-content {
            max-width: 800px;
            padding: 0 20px;
            color: var(--light-color);
            animation: fadeInUp 1s ease;
        }

        .slide-content h2 {
            font-size: 60px;
            color: var(--light-color);
            margin-bottom: 20px;
            text-transform: uppercase;
            font-weight: 800;
        }

        .slide-content p {
            font-size: 20px;
            margin-bottom: 30px;
            opacity: 0.85;
        }

        .btn-group {
            display: flex;
            gap: 20px;
        }

        .slider-controls {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 10;
        }

        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .slider-dot.active {
            background: var(--primary-color);
            transform: scale(1.2);
        }

        /* Services Section */
        .services-section {
            padding: var(--section-padding);
            background: #f9f9f9;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 50px;
        }

        .service-box {
            background: var(--light-color);
            padding: 30px;
            text-align: center;
            transition: var(--transition);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        .service-box:hover {
            transform: translateY(-10px);
        }

        .service-icon {
            width: 80px;
            height: 80px;
            background: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            border-radius: 50%;
        }

        .service-icon img {
            width: 50px;
            height: 50px;
        }

        .service-box h3 {
            font-size: 22px;
            margin-bottom: 15px;
        }

        .service-box p {
            color: var(--text-color);
        }

        .cta-container {
            text-align: center;
            margin-top: 50px;
        }

        /* Stats Section */
        .stats-section {
            padding: var(--section-padding);
            background: linear-gradient(rgba(29, 29, 29, 0.9), rgba(29, 29, 29, 0.9)), url('https://images.unsplash.com/photo-1504384308090-c894fdcc538d?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: var(--light-color);
            text-align: center;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 50px;
        }

        .stat-box {
            padding: 30px;
        }

/* ...existing code... */
.stat-number {
    font-size: 96px;
    font-weight: 200;
    color: var(--light-color);
    line-height: 1;
    margin-bottom: 10px;
    transition: color 0.5s, font-size 0.5s;
}
/* ...existing code... */

        .stat-number i {
            color: var(--primary-color);
        }

        .stat-text {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            text-transform: uppercase;
        }

        /* Features Section */
        .features-section {
            padding: var(--section-padding);
            background: #f9f9f9;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .feature-box {
            background: var(--light-color);
            padding: 50px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        .feature-box:hover {
            transform: translateY(-10px);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 30px;
            padding: 15px;
        }

        .feature-box h3 {
            font-size: 28px;
            margin-bottom: 20px;
        }

        .feature-box p {
            margin-bottom: 20px;
        }

        /* Projects Section */
        .projects-section {
            padding: var(--section-padding);
            background: var(--light-color);
        }

        .projects-carousel {
            position: relative;
            margin-top: 50px;
        }

        .projects-container {
            display: flex;
            overflow: hidden;
            gap: 30px;
            padding: 10px;
        }

        .project-item {
            min-width: calc(33.333% - 20px);
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        .project-image {
            width: 100%;
            height: 400px;
            background-size: cover;
            background-position: center;
            transition: var(--transition);
        }

        .project-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(29, 29, 29, 0.8);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 30px;
            text-align: center;
            color: var(--light-color);
            opacity: 0;
            transition: var(--transition);
        }

        .project-item:hover .project-overlay {
            opacity: 1;
        }

        .project-item:hover .project-image {
            transform: scale(1.05);
        }

        .project-overlay h3 {
            color: var(--light-color);
            font-size: 24px;
            margin-bottom: 10px;
        }

        .project-overlay p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            margin-bottom: 20px;
        }

        .carousel-controls {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 30px;
        }

        .carousel-btn {
            width: 40px;
            height: 40px;
            background: var(--dark-color);
            color: var(--light-color);
            border: none;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .carousel-btn:hover {
            background: var(--primary-color);
        }

        /* CTA Section */
        .cta-section {
            padding: var(--section-padding);
            background: linear-gradient(rgba(29, 29, 29, 0.9), rgba(29, 29, 29, 0.9)), url('https://images.unsplash.com/photo-1524592094714-0f0654e20314?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: var(--light-color);
            text-align: center;
        }

        .cta-section h2 {
            color: var(--light-color);
            font-size: 42px;
            margin-bottom: 20px;
        }

        .cta-section p {
            font-size: 20px;
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }

        /* Footer */
        .footer {
            background: #333;
            color: rgba(255, 255, 255, 0.75);
            padding: 80px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 60px;
        }

        .footer-widget h4 {
            font-size: 20px;
            color: var(--light-color);
            text-transform: uppercase;
            margin-bottom: 30px;
            padding-bottom: 15px;
            position: relative;
        }

        .footer-widget h4:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 35px;
            height: 4px;
            background: var(--primary-color);
        }

        .footer-widget ul {
            list-style: none;
        }

        .footer-widget ul li {
            margin-bottom: 15px;
        }

        .footer-widget ul li a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-widget ul li a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
        }

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

        /* Responsive */
        @media (max-width: 992px) {
            .services-grid,
            .features-grid,
            .stats-grid,
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .slide-content h2 {
                font-size: 40px;
            }
            
            .project-item {
                min-width: calc(50% - 15px);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            
            .nav-menu {
                position: fixed;
                top: 128px;
                left: -100%;
                width: 100%;
                background: var(--light-color);
                flex-direction: column;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
                z-index: 999;
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-menu li a {
                padding: 15px 20px;
                border-bottom: 1px solid #eee;
            }
            
            .services-grid,
            .features-grid,
            .stats-grid,
            .footer-grid {
                grid-template-columns: 1fr;
            }
            
            .slide-content h2 {
                font-size: 32px;
            }
            
            .btn-group {
                flex-direction: column;
                gap: 15px;
            }
            
            .project-item {
                min-width: 100%;
            }
        }

        @media (max-width: 576px) {
            .section-title h2 {
                font-size: 32px;
            }
            
            .hero-slider {
                height: 600px;
            }
            
            .slide-content h2 {
                font-size: 28px;
            }
            
            .slide-content p {
                font-size: 16px;
            }
            
            .stat-number {
                font-size: 70px;
            }
        }

        /* Course Player Styles */
.course-player-container {
  display: flex;
  height: 100vh;
}

.sidebar {
  width: 300px;
  background: #2c3e50;
  color: white;
  padding: 20px;
  overflow-y: auto;
}

.main-content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.video-container {
  width: 100%;
  margin-bottom: 20px;
}

.video-js {
  width: 100%;
  height: 500px;
}

.lesson-item {
  padding: 10px;
  margin: 5px 0;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  cursor: pointer;
}

.lesson-item:hover {
  background: rgba(255,255,255,0.2);
}

.pdf-item {
  display: block;
  padding: 8px;
  margin: 5px 0;
  background: #f5f5f5;
  color: #333;
  text-decoration: none;
  border-radius: 4px;
}

.pdf-item:hover {
  background: #e0e0e0;
}

.assignment-item, .quiz-item {
  padding: 15px;
  margin: 10px 0;
  background: #f9f9f9;
  border-radius: 4px;
  border-left: 4px solid #4f46e5;
}

.assignment-form {
  margin-top: 10px;
}

.take-quiz-btn {
  padding: 8px 15px;
  background: #4f46e5;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.take-quiz-btn:hover {
  background: #3a36b3;
}

/* Responsive styles */
@media (max-width: 768px) {
  .course-player-container {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
  }
  
  .video-js {
    height: 300px;
  }
}