/* Video Klets articles and pages (rendered by src/site.js). Reading column ~70ch, header and footer full width. */
:root {
  --bg: #fbfbfd;
  --surface: #ffffff;
  --fg: #171a26;
  --muted: #5f6475;
  --line: #e3e5ee;
  --accent: #3b5bdb;
  --accent-ink: #ffffff;
  --accent-soft: #edf1ff;
  --pink: #c2368f;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1118;
    --surface: #171a24;
    --fg: #e7e9f2;
    --muted: #9aa0b4;
    --line: #2a2e3d;
    --accent: #8ea6ff;
    --accent-ink: #0b0f1e;
    --accent-soft: #1d2440;
    --pink: #f07cc6;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.65 var(--font); }
a { color: var(--accent); text-underline-offset: 2px; }
img { max-width: 100%; height: auto; }
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }

/* Header and footer */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 20px; min-height: 64px; flex-wrap: wrap; padding-block: 8px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg); text-decoration: none; font-weight: 750; font-size: 18px; letter-spacing: 0.01em; }
.brand img { border-radius: 8px; }
.menu ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 18px; flex-wrap: wrap; }
.menu a { color: var(--muted); text-decoration: none; font-weight: 550; font-size: 15px; }
.menu a:hover { color: var(--fg); }
.site-header .menu { margin-right: auto; }
.cta { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 650; padding: 12px 22px; border-radius: 999px; }
.cta:hover { filter: brightness(1.08); }
.cta.small { padding: 8px 16px; font-size: 14px; }
.site-footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: grid; gap: 10px; }
.site-footer p { margin: 0; }

/* Articles and pages */
main { padding-top: 40px; }
.entry { max-width: 720px; margin: 0 auto; }
.entry h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 12px; text-wrap: balance; }
.meta { color: var(--muted); font-size: 14.5px; margin: 0 0 24px; }
.meta a { color: inherit; }
.featured { margin: 0 0 28px; }
.featured img { width: 100%; border-radius: 14px; display: block; }
.content { font-family: var(--serif); font-size: 19px; line-height: 1.72; }
.content > * + * { margin-top: 1.1em; }
.content p { margin: 0; }
.content h2, .content h3, .content h4 { font-family: var(--font); line-height: 1.25; letter-spacing: -0.01em; margin: 1.8em 0 0.5em; text-wrap: balance; }
.content h2 { font-size: 28px; }
.content h3 { font-size: 22px; }
.content h4 { font-size: 18px; text-transform: none; }
.content img { border-radius: 10px; display: block; margin-left: auto; margin-right: auto; }
.content blockquote { margin-left: 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--accent); color: var(--muted); font-style: italic; }
.content pre { font: 14px/1.55 var(--mono); background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; }
.content code { font-family: var(--mono); font-size: 0.88em; background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; }
.content pre code { background: none; padding: 0; }
.content ul, .content ol { padding-left: 1.4em; }
.content li + li { margin-top: 0.35em; }
.content table { border-collapse: collapse; width: 100%; font-family: var(--font); font-size: 16px; display: block; overflow-x: auto; }
.content th, .content td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
.content iframe, .content video { max-width: 100%; }
.content .ql-align-center { text-align: center; }
.content .ql-align-right { text-align: right; }
.content .ql-align-justify { text-align: justify; }
.content .ql-indent-1 { padding-left: 2em; }
.content .ql-indent-2 { padding-left: 4em; }
.content .ql-indent-3 { padding-left: 6em; }

.chat-box { max-width: 720px; margin: 48px auto 0; background: var(--accent-soft); border-radius: 16px; padding: 28px; text-align: center; }
.chat-box h2 { margin: 0 0 6px; font-size: 24px; }
.chat-box p { margin: 0 0 18px; color: var(--muted); }

/* Blog and category lists */
.list-head { margin-bottom: 28px; }
.list-head h1 { font-size: clamp(30px, 5vw, 42px); margin: 0 0 6px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; display: grid; grid-template-rows: auto 1fr; min-width: 0; }
.card-img img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.card-body { padding: 18px 20px 20px; }
.card h2 { font-size: 20px; line-height: 1.3; margin: 0 0 6px; text-wrap: balance; }
.card h2 a { color: var(--fg); text-decoration: none; }
.card h2 a:hover { color: var(--accent); }
.card .meta { margin-bottom: 8px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.empty { color: var(--muted); }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 32px; color: var(--muted); font-size: 15px; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .content { font-size: 18px; }
  .site-header .menu { order: 3; width: 100%; }
  main { padding-top: 28px; }
}