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

#main-content {
    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;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero {
    text-align: center;
    padding: 4rem 0;
    color: white;
}

    .hero h1 {
        font-size: 8.5rem;
        margin-bottom: 0rem;
        text-shadow: 0 4px 8px rgba(0,0,0,0.3);
        animation: fadeInUp 1s ease;
        color: white;
    }

    .hero .subtitle {
        font-size: 3.5rem;
        margin-bottom: 1rem;
        opacity: 0.9;
        animation: fadeInUp 1s ease 0.2s both;
    }

    .hero .tagline {
        font-size: 2.1rem;
        margin-bottom: 3rem;
        opacity: 0.8;
        animation: fadeInUp 1s ease 0.4s both;
    }

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white !important;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 2.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease 0.6s both;
}

    .cta-button:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 35px rgba(0,0,0,0.3);
    }

.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.app-preview {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    margin: 3rem auto;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease 0.8s both;
}

.app-screenshot {
    width: 100%;
    max-width: 1800px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    margin: 0 auto;
    display: block;
    padding: 3px;
}

.features {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 4rem 0;
    margin: 3rem auto;
    border-radius: 30px;
}

    .features h2 {
        text-align: center;
        font-size: 4.5rem;
        margin-bottom: 3rem;
        color: #333;
    }

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

.feature-card {
    background: rgba(255,255,255,0.8);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #999;
}

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 2.1rem;
    margin-bottom: 1rem;
    color: #333;
    padding: 0;
    margin: 0;
}

.feature-card p {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1.8rem;
    color: #666;
    line-height: 1.8;
    padding-top:10px
}

.feature-detail {
    padding: 4rem 2rem 0 2rem;
    text-align: center;
    color: whitesmoke;
    font-size: 2.0rem;
}
.feature-detail sup {
    color: black;
}
.feature-detail a {
    color: wheat;
}

.specs {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    margin: 3rem auto 0 auto;
    color: white;
}

    .specs h2 {
        text-align: center;
        font-size: 4.5rem;
        margin-bottom: 2rem;
    }

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}


.spec-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
}

    .spec-item h4 {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        font-size: 2.2rem;
        margin-top: 0.5rem !important;
        margin-bottom: 0.5rem;
        color: #fff;
    }

    .spec-item p {
        opacity: 0.9;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        font-size: 1.7rem;
    }
    .spec-item img {
        max-width: 100%;
        height: auto;
        border-radius: 6px;
        margin-top: 1rem;
    }
    .spec-item ol {margin-left: 26px}
    .spec-item li {font-size: 1.7rem;}
    .manual-lst {margin-left: 20px;font-size: 1.7rem;}

    footer {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        text-align: center;
        padding: 3rem 0;
        color: white;
        opacity: 0.8;
    }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 7.1rem;
    }
    .hero .subtitle {
        font-size: 3.1rem !important;
    }
    .hero .tagline {
        font-size: 1.9rem !important;
    }
    .feature-grid {
        grid-template-columns: 1fr;
    }
}