:root { color-scheme: light; --ink: #0f172a; --muted: #64748b; --line: #e2e8f0; --brand: #4f46e5; --soft: #f8fafc; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); line-height: 1.65; background: #fff; }
a { color: var(--brand); }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); background: #000; }
.site-header .brand { color: #fff; font-weight: 700; text-decoration: none; letter-spacing: -0.02em; }
.site-header .cta-link { color: #fff; font-size: .9rem; }
main { max-width: 46rem; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 .5rem; }
h2 { font-size: 1.4rem; line-height: 1.3; margin: 2rem 0 .5rem; }
h3, h4, h5, h6 { margin: 1.5rem 0 .5rem; }
.lead, .meta { color: var(--muted); }
.meta { font-size: .9rem; margin-top: 0; }
.article-list { list-style: none; padding: 0; }
.article-list li { padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.article-list h2 { margin: 0 0 .25rem; font-size: 1.25rem; }
.article-list h2 a { color: var(--ink); text-decoration: none; }
.content blockquote { margin: 1rem 0; padding: .5rem 1rem; border-left: 3px solid var(--brand); background: var(--soft); }
.content pre { overflow-x: auto; padding: 1rem; background: var(--soft); }
.content table { border-collapse: collapse; width: 100%; }
.content th, .content td { border: 1px solid var(--line); padding: .4rem .6rem; }
.notice { margin-top: 2.5rem; padding: 1rem 1.25rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--soft); font-size: .9rem; color: #334155; }
.notice p { margin: .4rem 0; }
.cta { margin-top: 1.5rem; padding: 1.25rem; border-radius: .75rem; background: #eef2ff; }
.button { display: inline-block; padding: .55rem 1.1rem; border-radius: .6rem; background: var(--brand); color: #fff; text-decoration: none; font-weight: 600; }
.site-footer { border-top: 1px solid var(--line); padding: 1.5rem 1.25rem; font-size: .85rem; color: var(--muted); text-align: center; }
.site-footer p { margin: .3rem 0; }
.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: .5rem; }
.categories { display: flex; flex-wrap: wrap; gap: .5rem 1rem; margin: 1rem 0 2rem; }
.warning { padding: .75rem 1rem; border: 1px solid #f59e0b; border-radius: .5rem; background: #fffbeb; color: #92400e; }
.comments { margin-top: 2.5rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.comment { padding: .75rem 0; border-bottom: 1px solid var(--line); }
.comment .meta { margin: 0 0 .25rem; }
.comment-body { margin: 0; white-space: pre-line; overflow-wrap: anywhere; }
.comment-form label { display: block; font-weight: 600; margin-bottom: .4rem; }
.comment-form textarea { width: 100%; padding: .6rem; border: 1px solid var(--line); border-radius: .5rem; font: inherit; }
button.button { border: 0; cursor: pointer; font: inherit; }
.link-button { border: 0; background: none; padding: 0; color: var(--brand); text-decoration: underline; cursor: pointer; font: inherit; }