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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #1a1a1a;
    background: #fafafa;
    line-height: 1.6;
}

header {
    border-bottom: 1px solid #e5e5e5;
    background: #fff;
}

nav {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo a {
    color: inherit;
    text-decoration: none;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: #555;
    text-decoration: none;
    font-size: 0.9rem;
}

nav a:hover {
    color: #1a1a1a;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 1.5rem;
}

#hero {
    padding: 4rem 0 3rem;
}

#hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
}

#hero p {
    font-size: 1.15rem;
    color: #555;
    max-width: 500px;
}

section {
    padding: 2rem 0;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

p {
    color: #444;
    margin-bottom: 0.75rem;
}

a {
    color: #2563eb;
}

a:hover {
    color: #1d4ed8;
}

.app-grid {
    display: grid;
    gap: 1rem;
}

.app-card {
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 1.5rem;
}

.app-card h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.policy h2 {
    margin-top: 2rem;
}

.policy ul {
    margin: 0.5rem 0 1rem 1.5rem;
    color: #444;
}

.policy li {
    margin-bottom: 0.35rem;
}

footer {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    border-top: 1px solid #e5e5e5;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #888;
}

footer a {
    color: #888;
    text-decoration: none;
}

footer a:hover {
    color: #555;
}

@media (max-width: 600px) {
    #hero h1 {
        font-size: 1.75rem;
    }

    nav {
        flex-direction: column;
        gap: 0.75rem;
    }

    footer {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}