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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
        /* Header */
        .header {
            background: rgba(255, 255, 255, 0.95);
            /* backdrop-filter: blur(10px); */
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 1.5rem;
            font-weight: bold;
            color: #2c3e50;
            font-family: sans-serif;
        }

        .logo-icon {
            width: 20px;
            height: 20px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }
        /* pequeña animacion de movimiento en el robot  */
        .robot {
            width: 50%;
            animation: flotar 2s ease-in-out infinite;
        }
        @keyframes flotar {
            0% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0); }
        }

        /* se agrego la fuente del logo original  */
        @font-face {
            font-family: 'WissenFont';
            src: url('../fuente/Vermin-Vibes.woff2') format('woff2'),
                url('../fuente/Vermin-Vibes.woff') format('woff');
            font-weight: normal;
            font-style: normal;
        }
        .lt-logo{
            font-family: 'WissenFont', sans-serif;
            font-size: 30px;
            color: #2c3e50;
            letter-spacing: 2px;
            font-weight: 300; 
        }

        .login-btn {
            background: linear-gradient(45deg, #3498db, #2980b9);
            font-family: sans-serif;
            color: white;
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 1s ease;
            text-decoration: none;
            display: inline-block;
        }

        

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
        }

        /* Hero Section */
        .hero {
            padding: 120px 2rem 80px;
            text-align: center;
            color: white;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="grad1" cx="50%" cy="30%" r="70%"><stop offset="0%" style="stop-color:rgba(255,255,255,0.1);stop-opacity:1" /><stop offset="100%" style="stop-color:rgba(255,255,255,0);stop-opacity:0" /></radialGradient></defs><circle cx="200" cy="200" r="150" fill="url(%23grad1)"/><circle cx="800" cy="400" r="100" fill="url(%23grad1)"/><circle cx="300" cy="700" r="80" fill="url(%23grad1)"/></svg>');
            opacity: 0.3;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .welcome-text {
            font-family: sans-serif;
            font-size: 2.5rem;
            margin-bottom: 2rem;
            font-weight: 600;
            opacity: 0;
            animation: fadeInUp 1s ease 0.3s forwards;
        }

        .hero-logo {
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.15);
            /* backdrop-filter: blur(20px); */
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 3rem;
            font-weight: bold;
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.2);
            opacity: 0;
            animation: fadeInUp 1s ease 0.3s forwards;
        }

        .hero-tagline {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            opacity: 0.9;
            font-family: sans-serif;
            font-weight: 300;
            opacity: 0;
            animation: fadeInUp 1s ease 0.6s forwards;
        }

        .cta-btn {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            padding: 1rem 2.5rem;
            font-family: sans-serif;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            /* backdrop-filter: blur(10px); */
            opacity: 0;
            animation: fadeInUp 1s ease 0.9s forwards;
        }

        .cta-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        /* Features Section */
        .features {
            background: white;
            padding: 80px 2rem;
        }

        .container {
            font-family: sans-serif;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: #2c3e50;
            font-weight: 300;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }

        .feature-card {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 2rem;
            border-radius: 15px;
            text-align: center;
            transition: all 20s ease;
            border: 1px solid rgba(52, 152, 219, 0.1);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            border-color: #3498db;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(45deg, #3498db, #2980b9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            color: white;
            font-size: 1.5rem;
        }

        .feature-title {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: #2c3e50;
            font-weight: 600;
        }

        .feature-description {
            color: #7f8c8d;
            line-height: 1.6;
        }

        /* Advantages Section */
        .advantages {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 80px 2rem;
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
        }

        .advantage-item {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            display: flex;
            align-items: center;
            gap: 1rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 20s ease;
        }

        .advantage-item:hover {
            transform: translateX(5px);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .advantage-icon {
            width: 40px;
            height: 40px;
            background: #004ACC;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .advantage-text {
            color: #2c3e50;
            font-weight: 500;
        }

        /* Footer */
        .footer {
            background: #2c3e50;
            font-family: sans-serif;
            color: white;
            text-align: center;
            padding: 2rem;
        }

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

        /* Responsive */
        @media (max-width: 768px) {
            .welcome-text {
                font-size: 2rem;
            }

            .hero-tagline {
                font-size: 1.2rem;
            }

            .hero-logo {
                width: 100px;
                height: 100px;
                font-size: 2.5rem;
            }

            .section-title {
                font-size: 2rem;
            }

            .nav-container {
                padding: 0 1rem;
            }

            .hero {
                padding: 100px 1rem 60px;
            }

            .features, .advantages {
                padding: 60px 1rem;
            }
        }

        @media (max-width: 480px) {
            .welcome-text {
                font-size: 1.5rem;
            }

            .hero-tagline {
                font-size: 1rem;
            }

            .cta-btn {
                padding: 0.8rem 2rem;
                font-size: 1rem;
            }
        }