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

body {
    min-height: 100vh;
    position: relative;
    padding-bottom: 50px;
    overflow-y: auto;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    background-image: 
        linear-gradient(rgba(247, 180, 56, 0.4), rgba(255, 165, 0, 0.1)),
        url("images/coldsaver.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.navbar {
    padding: 15px;
    position: sticky;
    margin-top: 15px;
    z-index: 100;
}

.nav-link {
    background-color: orange;
    color: white;
    text-decoration: none;
    margin-bottom:20px;
    margin-left: 2px;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid white;
    transition: all 0.3s ease;
    font-weight: bolder;
    font-family: DC Sans, sans-serif;
}

.nav-link:hover {
    background-color: white;
    color: orange;
    border: 1px solid orange;
    transform: scale(1.1);
}

.company-logo {
    display:block;
    margin: 20px auto;
    margin-bottom: 20px;
    box-shadow: #2c3e50 0 4px 8px;

}   
.content {
    font-family: 'DS Sans', Sans-serif;
    font-weight: bolder;
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.94);
    background-repeat: no-repeat;
    margin-top: 35px;
    border-radius: 20px;
    border: 2px solid orange;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.8);
    opacity: 0.8; 
    
}


h1 {
    font-family: 'DC Sans', sans-serif;
    font-weight: bolder;
    text-align: center;

}   



h2 {
    color: #385bf7;
    font-size: 1.9em;
    margin-bottom: 20px;
    padding-bottom: 8px;
    font-family: 'DS Sans', sans-serif;
    font-weight: bolder;
    text-align: center;
}

h3 {
    color: #385bf7;
    font-size: 1.5em;
    margin-bottom: 12px;
    margin-top: 25px;
    font-family: 'DS Sans', sans-serif;
    font-weight: bolder;
    text-align: center;
}

p {
    line-height: 1.7;
    margin-bottom: 18px;
    color: #2c3e50;
    font-size: 1.05em;
    font-weight: 'DS Sans', sans-serif;
    font-weight: bolder;

}

ul {
    margin-left: 25px;
    margin-bottom: 20px;
}

li {
    line-height: 1.7;
    margin-bottom: 8px;
    color: #34495e;
    font-family: 'DS Sans', sans-serif;
    font-weight: bolder;

}

section {
    margin-bottom: 30px;
    padding: 20px;
    border-radius: 8px;
    font-family: DS Sans, Sans-serif;
    font-weight: bolder;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 10px;
        margin-top: 10px;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-link {
        margin: 5px;
        padding: 12px 16px;
        font-size: 14px;
        min-height: 44px;
    }
    
    .content {
        margin: 10px;
        padding: 15px;
        margin-top: 20px;
    }
    
    h1 {
        font-size: 2em;
    }
    
    h2 {
        font-size: 1.5em;
    }
    
    h3 {
        font-size: 1.2em;
    }
    
    section {
        margin-bottom: 20px;
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .navbar {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-link {
        width: 90%;
        margin: 3px 0;
        text-align: center;
    }
    
    .content {
        margin: 5px;
        padding: 10px;
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    h2 {
        font-size: 1.3em;
    }
    
    p, li {
        font-size: 16px;
        line-height: 1.5;
    }
    
    section {
        margin-bottom: 15px;
        padding: 10px;
    }
}