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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Navigace */
header {
    background-color: #6B46C1;
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

.logo h1 {
    font-size: 1.8rem;
    color: white;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

.demo-btn {
    background-color: #9333EA;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    transition: background-color 0.3s;
}

.demo-btn:hover {
    background-color: #7C3AED;
}

/* Hero sekce */
.hero {
    background: linear-gradient(135deg, #6B46C1 0%, #9333EA 100%);
    color: white;
    padding: 150px 0 100px;
    text-align: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: #6B46C1;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* O softwaru sekce */
.about {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.about h2 {
    text-align: center;
    font-size: 2rem;
    color: #6B46C1;
    margin-bottom: 3rem;
}

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

.feature {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature h3 {
    color: #6B46C1;
    margin-bottom: 1rem;
}

/* Kontakt sekce */
.contact {
    padding: 80px 0;
    background-color: white;
}

.contact h2 {
    text-align: center;
    font-size: 2rem;
    color: #6B46C1;
    margin-bottom: 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.contact-item {
    padding: 2rem;
}

.contact-item h3 {
    color: #6B46C1;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: #6B46C1;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Responzivní design */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links li {
        margin-left: 0;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
}