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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 0;
        }

        /* Header Styles */
        header {
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .container-nav {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 80px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.8em;
            font-weight: bold;
            color: #667eea;
        }

        .logo img {
            width: 68px;
            height: auto;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
            align-items: center;
        }

        .nav-menu a {
            color: #333;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-menu a:hover {
            color: #667eea;
        }

        .nav-menu .btn-primary {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 10px 25px;
            border-radius: 25px;
        }

        .nav-menu .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5em;
            color: #667eea;
            cursor: pointer;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 20px;
            background: white;
            min-height: 80vh;
        }

        .page-header {
            text-align: center;
            color: #333;
            margin-bottom: 50px;
            padding: 40px 20px;
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
            border-radius: 15px;
        }

        .page-header h1 {
            font-size: 3.5em;
            margin-bottom: 15px;
            color: #667eea;
        }

        .page-header p {
            font-size: 1.3em;
            color: #666;
        }

        .breadcrumb {
            background: transparent;
            padding: 20px 0;
            display: inline-block;
            color: #667eea;
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: #667eea;
            text-decoration: none;
            opacity: 0.8;
        }

        .breadcrumb a:hover {
            opacity: 1;
            text-decoration: underline;
        }

        .courses-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }

        .course-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.3s;
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .course-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }

        .course-image {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4em;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .course-image::before {
            content: '';
            position: absolute;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: pulse 3s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.1); opacity: 0.8; }
        }

        .course-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: #ff6b6b;
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.25em;
            font-weight: bold;
            text-transform: uppercase;
        }

        .course-badge.new {
            background: #51cf66;
        }

        .course-badge.popular {
            background: #ffd43b;
            color: #333;
        }

        .course-content {
            padding: 25px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .course-category {
            display: inline-block;
            background: #e3f2fd;
            color: #1976d2;
            padding: 5px 15px;
            border-radius: 15px;
            font-size: 0.85em;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .course-title {
            font-size: 1.5em;
            color: #333;
            margin-bottom: 15px;
            line-height: 1.3;
        }

        .course-description {
            color: #666;
            margin-bottom: 20px;
            line-height: 1.6;
            flex: 1;
        }

        .course-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 15px;
            border-top: 2px solid #f0f0f0;
        }

        .course-level {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #667eea;
            font-weight: 600;
        }

        .course-duration {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #666;
        }

        .course-btn {
            margin-top: 15px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 12px 25px;
            border: none;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
        }

        .course-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        .stats-section {
            background: rgba(255, 255, 255, 0.95);
            padding: 40px;
            border-radius: 20px;
            margin-bottom: 50px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .stat-item {
            padding: 20px;
        }

        .stat-number {
            font-size: 3em;
            font-weight: bold;
            color: #667eea;
            margin-bottom: 10px;
        }

        .stat-label {
            color: #666;
            font-size: 1.1em;
        }

        .empty-state {
            background: white;
            padding: 60px;
            border-radius: 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .empty-state i {
            font-size: 5em;
            color: #667eea;
            margin-bottom: 20px;
        }

        .empty-state h3 {
            font-size: 2em;
            color: #333;
            margin-bottom: 15px;
        }

        .empty-state p {
            color: #666;
            font-size: 1.2em;
        }

        footer {
            background: white;
            padding: 60px 20px 20px;
            margin-top: 80px;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-section h3 {
            color: #667eea;
            margin-bottom: 20px;
            font-size: 1.3em;
        }

        .footer-section p {
            color: #666;
            line-height: 1.8;
        }

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

        .footer-section ul li {
            margin-bottom: 12px;
        }

        .footer-section ul li a {
            color: #666;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-section ul li a:hover {
            color: #667eea;
        }

        .social-links-footer {
            display: flex;
            gap: 15px;
            margin-top: 15px;
        }

        .social-links-footer a {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1.2em;
            transition: all 0.3s;
        }

        .social-links-footer a:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 2px solid #f0f0f0;
            color: #666;
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            }

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

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

            .page-header h1 {
                font-size: 2em;
            }

            .courses-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        .highlight-card {
            border: 3px solid #ffd43b;
            position: relative;
        }

        .highlight-card::after {
            content: '⭐ RECOMENDADO';
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: #ffd43b;
            color: #333;
            padding: 5px 20px;
            border-radius: 20px;
            font-weight: bold;
            font-size: 0.85em;
        }