* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #1a1a2e;
    background: #fafafa;
    line-height: 1.6;
}

main {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Hero */
.hero {
    text-align: center;
    padding: 4rem 0 3rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: #16a34a;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 1.25rem;
    color: #555;
    margin-top: 0.25rem;
}

.subtitle {
    font-size: 1.1rem;
    color: #333;
    margin-top: 1.5rem;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

/* CTA */
.cta {
    display: inline-block;
    margin-top: 2rem;
    padding: 0.9rem 2.5rem;
    background: #0088cc;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: background 0.2s;
}

.cta:hover {
    background: #006fa1;
}

.cta-secondary {
    background: #16a34a;
}

.cta-secondary:hover {
    background: #15803d;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding: 2rem 0;
}

.feature {
    background: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.feature .icon {
    font-size: 1.75rem;
}

.feature h3 {
    margin: 0.5rem 0 0.25rem;
    font-size: 1rem;
}

.feature p {
    font-size: 0.9rem;
    color: #555;
}

/* How it works */
.how {
    text-align: center;
    padding: 2rem 0 3rem;
}

.how h2 {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.how ol {
    list-style: none;
    counter-reset: steps;
    max-width: 360px;
    margin: 0 auto;
    text-align: left;
}

.how ol li {
    counter-increment: steps;
    padding: 0.5rem 0;
    font-size: 1.05rem;
}

.how ol li::before {
    content: counter(steps) ".";
    font-weight: 700;
    color: #16a34a;
    margin-right: 0.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    color: #888;
    font-size: 0.85rem;
    border-top: 1px solid #eee;
}

/* Mobile */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .cta {
        width: 100%;
        text-align: center;
    }
}