body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0c111a;
    color: #fff;
    text-align: center;
}
header .logo {
    max-width: 160px;
    margin: 30px auto 10px;
    display: block;
}
h1 {
    color: #27f4de;
    font-size: 2.5rem;
    margin: 10px 0;
}
.tagline {
    margin: 0;
    font-weight: 300;
    font-size: 1rem;
}
.value-prop {
    margin: 30px auto;
    font-size: 1.1rem;
    font-weight: bold;
    width: 80%;
    max-width: 700px;
}
.cta-button {
    background-color: #1ae3d2;
    color: #000;
    padding: 12px 25px;
    font-weight: bold;
    border-radius: 6px;
    text-decoration: none;
}
section.specialties, section.testimonials {
    margin: 40px auto;
}
.specialties h2, .testimonials h2 {
    color: #27f4de;
}
.specialties ul {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    max-width: 400px;
}
.specialties li {
    margin: 5px 0;
}
.testimonials blockquote {
    font-style: italic;
    color: #c0e9e6;
    margin: 15px auto;
    max-width: 600px;
}
footer {
    margin-top: 40px;
    padding: 20px;
    background-color: #121926;
    font-size: 0.9rem;
}