/*
  Shared stylesheet for the SwiftQL blog. Reuses the design tokens and nav/
  footer styling from ../../index.html (the landing page) so the two feel
  like one site. If you change a color or spacing value here, check whether
  the landing page needs the same change, and vice versa.
*/

:root {
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --bg-code: #f4f5f7;
  --fg: #1d1d1f;
  --fg-muted: #5c5f66;
  --fg-faint: #85888f;
  --line: #e2e4e8;
  --accent: #d8412a;
  --accent-fg: #ffffff;
  --code-key: #ad3da4;
  --code-type: #0b4f79;
  --code-str: #c41a16;
  --code-com: #6e7781;
  --radius: 10px;
  --measure: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-alt: #161920;
    --bg-code: #14171d;
    --fg: #e8eaed;
    --fg-muted: #a2a7b0;
    --fg-faint: #7c828c;
    --line: #262b34;
    --accent: #ff6a4d;
    --accent-fg: #1a0d09;
    --code-key: #ff7ab2;
    --code-type: #9ed0ff;
    --code-str: #ff8170;
    --code-com: #7c828c;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- nav ---------- */

.nav {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  z-index: 10;
}

.nav .wrap {
  max-width: 1080px;
  display: flex;
  align-items: center;
  gap: 20px;
  height: 56px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.nav-brand:hover { text-decoration: none; }
.nav-brand img { width: 24px; height: 24px; border-radius: 5px; }

.nav-links {
  margin-left: auto;
  display: flex;
  gap: 22px;
  font-size: 15px;
}
.nav-links a { color: var(--fg-muted); }
.nav-links a:hover { color: var(--fg); text-decoration: none; }

@media (max-width: 640px) {
  .nav-links { gap: 16px; font-size: 14px; }
  .nav-optional { display: none; }
}

/* ---------- blog index ---------- */

.blog-header {
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--line);
}

.blog-header h1 {
  font-size: clamp(28px, 5vw, 40px);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  font-weight: 700;
}

.blog-header p {
  color: var(--fg-muted);
  max-width: 60ch;
  margin: 0;
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 40px 0;
}

.post-list li {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.post-list li:first-child { padding-top: 0; }
.post-list li:last-child { border-bottom: 0; }

.post-list h2 {
  font-size: 21px;
  margin: 0 0 6px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.post-list time {
  display: block;
  font-size: 13px;
  color: var(--fg-faint);
  margin-bottom: 8px;
}

.post-list p {
  color: var(--fg-muted);
  margin: 0;
}

/* ---------- article ---------- */

.article-header {
  padding: 48px 0 8px;
}

.article-header time {
  display: block;
  font-size: 13px;
  color: var(--fg-faint);
  margin-bottom: 10px;
}

.article-header h1 {
  font-size: clamp(28px, 5vw, 38px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
  font-weight: 700;
}

article {
  padding: 24px 0 64px;
}

article h2 {
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 40px 0 14px;
  font-weight: 650;
}

article h3 {
  font-size: 17px;
  letter-spacing: -0.01em;
  margin: 28px 0 10px;
  font-weight: 650;
}

article p { margin: 0 0 18px; }
article p:last-child { margin-bottom: 0; }

article table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 18px;
  font-size: 15px;
}
article th, article td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
article th {
  font-weight: 600;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-faint);
  white-space: nowrap;
}
article ul, article ol { margin: 0 0 18px; padding-left: 22px; }
article li { margin-bottom: 8px; }
article li:last-child { margin-bottom: 0; }

article pre,
article .highlight pre {
  margin: 0 0 18px;
  background: var(--bg-code) !important;
  color: var(--fg) !important;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.55;
}

/* Chroma (Hugo's syntax highlighter) is configured with style "bw" and emits
   only bold/italic inline spans, no color, so code stays theme-adaptive
   instead of fighting prefers-color-scheme with a hardcoded palette. The
   !important above overrides the inline background-color Chroma still sets
   on the <pre> itself. */
article .highlight {
  margin: 0 0 18px;
}
article .highlight pre {
  margin: 0;
}

article code {
  font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, monospace;
}

article p code, article li code {
  background: var(--bg-code);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 0.88em;
}

article a { text-decoration: underline; text-underline-offset: 2px; }

.back-link {
  display: inline-block;
  margin: 32px 0 0;
  font-size: 15px;
}

/* ---------- footer ---------- */

footer {
  padding: 44px 0 56px;
  border-top: 1px solid var(--line);
  color: var(--fg-faint);
  font-size: 14.5px;
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-bottom: 22px;
}
.foot-links a { color: var(--fg-muted); }