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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    background: #f5f5f5;
    color: #111;
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
}

a {
    color: #111;
    text-decoration: underline;
    text-underline-offset: 3px;
}

a:hover {
    color: #444;
}

.site-header {
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
    padding: 16px 20px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: #000;
    text-decoration: none;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
}

.nav a {
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    color: #333;
}

.nav a:hover,
.nav a.active {
    color: #000;
    text-decoration: underline;
}

main {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px 48px;
}

.hero {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 16px;
    padding: 32px 24px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.hero p {
    color: #444;
    font-size: 1rem;
    max-width: 640px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 20px;
}

.card h2 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.card p {
    font-size: 0.9375rem;
    color: #555;
}

.tools {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
}

.tools h2 {
    font-size: 1.125rem;
    margin-bottom: 12px;
}

.tools ul {
    list-style: none;
}

.tools li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    font-size: 0.9375rem;
}

.tools li:last-child {
    border-bottom: none;
}

.tools a {
    font-weight: 500;
}

.legal-page h1 {
    font-size: clamp(1.35rem, 4vw, 1.75rem);
    margin-bottom: 8px;
}

.legal-page .updated {
    color: #666;
    font-size: 0.875rem;
    margin-bottom: 28px;
}

.legal-page section {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.legal-page h2 {
    font-size: 1.05rem;
    margin-bottom: 10px;
}

.legal-page p,
.legal-page ul {
    font-size: 0.9375rem;
    color: #333;
    margin-bottom: 10px;
}

.legal-page ul {
    padding-left: 1.25rem;
    margin-bottom: 12px;
}

.legal-page li {
    margin-bottom: 6px;
}

.site-footer {
    background: #fff;
    border-top: 1px solid #e0e0e0;
    padding: 24px 20px;
    text-align: center;
    font-size: 0.8125rem;
    color: #666;
}

.site-footer .footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 20px;
    margin-bottom: 12px;
}

.site-footer a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
}

.site-footer a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    main {
        padding: 24px 16px 40px;
    }

    .hero {
        padding: 24px 18px;
    }

    .legal-page section {
        padding: 18px;
    }
}