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

body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    max-width: 50rem;
    margin: 0 auto;
    padding: 2rem 1rem;
    color: #1a1a1a;
    background: #fafafa;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
}

.subtitle {
    color: #666;
    margin-bottom: 0;
}

h2 {
    font-size: 1.2rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid #e5e7eb;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    padding: 0.4rem 0;
}

a {
    color: #2563eb;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

.tool-desc {
    color: #666;
}

.private-link {
    display: inline-block;
    margin-top: 0.25rem;
    padding: 0.3rem 0.7rem;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    color: #666;
    font-size: 0.85rem;
    white-space: nowrap;
}
.private-link:hover {
    border-color: #2563eb;
    color: #2563eb;
    text-decoration: none;
}

.empty-state {
    color: #999;
    font-style: italic;
    padding: 1rem 0;
}

footer {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
    color: #999;
    font-size: 0.85rem;
}

footer a {
    color: #999;
}
footer a:hover {
    color: #2563eb;
}

@media (max-width: 600px) {
    body { padding: 1rem 0.75rem; }
    h1 { font-size: 1.5rem; }
}