* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, sans-serif;
}

body {
    background-color: #fafafa;
    color: #1f2933;
}

/* Top bar */
.topbar {
    background: white;
    border-bottom: 1px solid #e5e7eb;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar nav a {
    margin-left: 1.2rem;
    text-decoration: none;
    color: #4b5563;
}

.topbar nav a:hover {
    color: #111827;
}

/* Intro */
.intro {
    padding: 4rem 2rem;
    max-width: 900px;
    margin: auto;
}

.intro-text h2 {
    font-size: 2.4rem;
    margin-bottom: 1rem;
}

.intro-text p {
    color: #4b5563;
    max-width: 600px;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.cta {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: #111827;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}

.cta:hover {
    background: #000;
}

/* Features */
.features {
    background: white;
    padding: 3rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: auto;
}

.feature span {
    font-size: 2rem;
}

.feature h3 {
    margin: 0.8rem 0;
}

.feature p {
    color: #6b7280;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: #6b7280;
}