* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

body {
    background: #050507;
    color: #e6e6eb;
    line-height: 1.7;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2rem;
    background: #07070a;
    border-bottom: 1px solid #111;
}

.logo {
    font-weight: 600;
    letter-spacing: 0.5px;
    color: #9aa4ff;
}

.navbar a {
    color: #cfcfd6;
    margin-left: 1.5rem;
    text-decoration: none;
}

.navbar a:hover {
    color: #9aa4ff;
}

.hero {
    padding: 6rem 2rem;
    text-align: center;
    background: radial-gradient(circle at top, #0d0f2a, #050507 60%);
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
}

.hero p {
    max-width: 700px;
    margin: auto;
    opacity: 0.85;
}

.section {
    padding: 4.5rem 2rem;
    max-width: 1100px;
    margin: auto;
}

.section.dark {
    background: #07070a;
    border-top: 1px solid #111;
    border-bottom: 1px solid #111;
}

.section h2 {
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.section-text {
    max-width: 800px;
    opacity: 0.85;
}

.features,
.extensions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

.card,
.extension-card {
    background: #0b0b12;
    border: 1px solid #151520;
    border-radius: 12px;
    padding: 2rem;
    transition: border 0.2s ease, transform 0.2s ease;
}

.card:hover,
.extension-card:hover {
    border-color: #2b2f6a;
    transform: translateY(-4px);
}

.extension-card p {
    opacity: 0.85;
}

button,
.btn-primary,
.btn-secondary {
    margin-top: 1.2rem;
    padding: 0.75rem 1.6rem;
    border-radius: 999px;
    border: none;
    background: #1c1f55;
    color: #e6e6eb;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: #9aa4ff;
    color: #050507;
    font-weight: 600;
}

button:hover,
.btn-primary:hover,
.btn-secondary:hover {
    opacity: 0.85;
}

footer {
    padding: 2rem;
    text-align: center;
    background: #040406;
    border-top: 1px solid #111;
    color: #777;
}