body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #121212;
    color: #E0E0E0;
}

.navbar {
    margin-bottom: 0;
}

.navbar-brand img {
    max-height: 50px;
}

.hero {
    background: url('https://via.placeholder.com/1200x500') no-repeat center center;
    background-size: cover;
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.25rem;
    color: #B0BEC5;
}

.btn-primary {
    background-color: #1E88E5;
    border: none;
}

.btn-primary:hover {
    background-color: #1565C0;
}

.section {
    padding: 50px 20px;
    text-align: center;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 30px;
}

.card-title {
    font-size: 1.25rem;
}

.card-dark {
    background-color: #1E1E1E;
    color: #E0E0E0;
    border: none;
}

.bg-dark-light {
    background-color: #1E1E1E;
}

.feature-detail ul {
    list-style: none;
    padding: 0;
    text-align: left;
    margin-top: 20px;
}

.feature-detail ul li::before {
    content: '•';
    color: #1E88E5;
    padding-right: 10px;
}

.feature-detail h3,
.feature-detail li {
    color: #B0BEC5;
}

.container {
    max-width: 1100px;
}

.footer {
    background-color: #181818;
    padding: 20px;
    text-align: center;
    border-top: 1px solid #444;
}

.footer p {
    margin: 0;
}