:root {
    --primary-color: #37474f; 
    --text-color: #333333;    
    --bg-light: #ffffff;      
    --bg-gray: #f5f5f5;       
    --link-color: #ffffff;    
    --container-width: 1100px; 
    --section-padding: 60px 0; 
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 
                 Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", 
                 "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
    padding-top: 60px; 
}


.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.text-container {
    width: 90%;
    max-width: var(--container-width);
    padding-top: 60px;
    margin: 0 auto;
}


.thin-container {
    max-width: 800px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
}


img.play-store-badge {
    width: 220px;            
    height: auto;
    box-shadow: none;        
    border-radius: 0;        
    border: none;            
    display: inline-block;   
    transition: transform 0.2s ease; 
}


img.play-store-badge:hover {
    transform: scale(1.05);  
    filter: brightness(1.1); 
}

h1, h2, h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}


.bg-gray {
    background-color: var(--bg-gray);
}

.text-center {
    text-align: center;
}


.site-header {
    background-color: var(--primary-color);
    color: var(--link-color);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

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


.logo-link {
    display: flex;
    align-items: center; 
    text-decoration: none; 
    color: inherit; 
}


.header-logo {
    height: 48px; 
    width: auto;  
    margin-right: 12px; 
    box-shadow: none;   
    border-radius: 0;   
}


.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

.main-nav a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

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


.hero-section {
    position: relative;
    height: 300px; 
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    
    
    
    background-image: url('hero.jpg');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    
    background-color: rgba(0, 0, 0, 0.8); 
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    color: white;
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
}


.content-section {
    padding: var(--section-padding);
}


.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr; 
    gap: 40px; 
    align-items: center; 
}

.text-block {
    padding: 20px;
}


.button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 10px;
}


.site-footer {
    background-color: var(--primary-color);
    color: rgba(255,255,255,0.7);
    padding: 30px 0;
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: white;
    text-decoration: none;
}

.copyright {
    font-size: 0.9rem;
}



@media (max-width: 768px) {
    .site-header {
        padding: 0.5rem 0;
    }

    .header-content {
        flex-direction: column;
        gap: 10px;
    }
    
    .header-logo {
        height: 32px;
    }

    .logo-text {
        font-size: 1.2rem;
    }    

    .main-nav ul {
        font-size: 0.9rem;
        gap: 15px;
    }

    .hero-section {
        height: 400px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }

    
    .grid-2-col {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    
    .image-left .image-block {
        order: 2; 
    }
    .text-block {
        padding: 0;
        text-align: center;
    }
}