.about-container {
    max-width: 900px;
    margin: 60px auto;
    padding: 0 20px;
    line-height: 1.8;
    color: #444;
}

.about-header {
    text-align: center;
    margin-bottom: 60px;
}

.about-header h1 {
    font-size: 2.5rem;
    color: #222;
    margin-bottom: 10px;
}

.tagline {
    font-style: italic;
    color: #888;
    font-size: 1.1rem;
}

.about-section {
    margin-bottom: 40px;
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 50px 0;
}

.tech-card {
    background: #fdfdfd;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #eee;
}

.tech-card h3 {
    color: #333;
    margin-bottom: 15px;
}

.security-info {
    background: #333;
    color: white;
    padding: 40px;
    border-radius: 15px;
}

.security-info h2 { color: white; margin-bottom: 20px; }

.security-info ul {
    list-style: none;
    padding: 0;
}

.security-info li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.security-info li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2ecc71;
    font-weight: bold;
}

.cta-about {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    border-top: 1px solid #eee;
}

.btn-contact {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    border: 1px solid #333;
    color: #333;
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
}

.btn-contact:hover {
    background: #333;
    color: white;
}