* { box-sizing: border-box; }
body { font-family: system-ui, sans-serif; line-height: 1.5; max-width: 720px; margin: 0 auto; padding: 1.25rem; color: #1a1a1a; }
header, footer { margin-bottom: 1.5rem; }
a { color: #0b5fff; }
h1 { font-size: 1.5rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 1.25rem 0 0.4rem; }
.tagline { color: #555; margin: 0 0 1rem; }
.rank { list-style: none; padding: 0; margin: 0; }
.rank li { border-bottom: 1px solid #e5e5e5; padding: 0.85rem 0; }
.rank .num { font-weight: 700; color: #666; margin-right: 0.4rem; }
.rank p { margin: 0.25rem 0 0; color: #444; font-size: 0.95rem; }
.meta { color: #666; font-size: 0.9rem; }
ul.proscons { margin: 0.25rem 0 0; padding-left: 1.2rem; }
.signup { background: #f5f7fa; border: 1px solid #dde3ea; padding: 1rem; margin: 1.5rem 0; border-radius: 6px; }
.signup input[type=email] { width: 100%; max-width: 280px; padding: 0.45rem 0.6rem; margin: 0.4rem 0.4rem 0.4rem 0; }
.signup button { padding: 0.45rem 0.85rem; cursor: pointer; }
.nav { margin-bottom: 1rem; font-size: 0.9rem; }
footer { border-top: 1px solid #e5e5e5; padding-top: 1rem; font-size: 0.85rem; color: #666; }