/* General Styling */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    line-height: 1.6;
    color: #333;
    background-color: #f4f7f6;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px 0;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3, h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

h1 { font-size: 2.5em; }
h2 { font-size: 2em; }
h3 { font-size: 1.75em; }
h4 { font-size: 1.3em; }

.btn {
    display: inline-block;
    background: #007bff;
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    transition: background 0.3s ease;
    margin-top: 20px;
}

.btn:hover {
    background: #0056b3;
    text-decoration: none;
}

/* Header */
header {
    background: #ffffff;
    padding: 20px 0;
    border-bottom: 3px solid #007bff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

header .logo h1 {
    margin: 0;
    color: #2c3e50;
    font-weight: 700;
}

header nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

header nav ul li {
    display: inline;
    margin-left: 20px;
}

header nav a {
    color: #555;
    font-weight: 400;
    transition: color 0.3s ease;
}

header nav a:hover {
    color: #007bff;
    text-decoration: none;
}

/* Hero Section */
#hero {
    background: url('https://source.unsplash.com/1600x900/?recycling,electronics') no-repeat center center/cover; /* Placeholder image */
    color: #fff;
    text-align: center;
    padding: 100px 0;
    position: relative;
}

#hero::before { /* Overlay for better text readability */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

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

#hero h2 {
    font-size: 3em;
    margin-bottom: 15px;
    color: #fff;
}

#hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: #fff;
}

/* Sections */
section {
    padding: 60px 0;
    text-align: center;
}

section.alt-bg {
    background-color: #e9ecef;
}

section h3 {
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 10px;
}

section h3::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #007bff;
}

/* Service Grid */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-item {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

.service-item h4 {
    color: #007bff;
    margin-bottom: 15px;
}

/* Data Security Features */
.data-security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    text-align: left;
}

.feature-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

/* Contact Section */
#contact p {
    font-size: 1.1em;
}

/* Footer */
footer {
    background: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
}

footer p {
    margin: 0;
    font-size: 0.9em;
}

/* Responsive Design */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
    }

    header nav ul {
        margin-top: 15px;
    }

    header nav ul li {
        margin: 0 10px;
    }

    #hero h2 {
        font-size: 2.2em;
    }

    #hero p {
        font-size: 1em;
    }

    .service-grid, .data-security-features {
        grid-template-columns: 1fr;
    }

    .container {
        width: 90%;
    }
}