/* Checkpoint64 blog — standalone stylesheet, no dependency on src/style.css.
   Mirrors the same paper/cartridge palette and type system so blog pages feel
   continuous with the marketing site. */

:root {
  --ink: #1a1814;
  --paper: #f4ecd8;
  --paper-deep: #ede4cf;
  --night: #0c0b09;
  --night-2: #15130f;
  --accent: #ff5f4e;
  --accent-ink: #1a1814;

  /* Theme tokens — swapped by [data-theme="light"]. Mirrors src/style.css. */
  --bg: var(--night);
  --bg-2: var(--night-2);
  --fg: var(--paper);
  --fg-rgb: 244, 236, 216;
  --bg-nav: rgba(12, 11, 9, 0.78);
  --night-line: rgba(var(--fg-rgb), 0.08);

  --f-pixel: "Press Start 2P", monospace;
  --f-vt: "VT323", monospace;
  --f-mono: "JetBrains Mono", ui-monospace, monospace;
  --f-hand: "Patrick Hand", cursive;
}

[data-theme="light"] {
  --bg: var(--paper);
  --bg-2: var(--paper-deep);
  --fg: var(--ink);
  --fg-rgb: 26, 24, 20;
  --bg-nav: rgba(244, 236, 216, 0.82);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--f-mono);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body {
  background-image:
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(var(--fg-rgb), 0.04) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(var(--fg-rgb), 0.04) 39px 40px);
}

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

.pixel { font-family: var(--f-pixel); letter-spacing: -1px; line-height: 1.1; }
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 14px; font-family: var(--f-pixel); font-size: 11px;
  text-decoration: none; z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; outline: 2px solid var(--ink); }

.blog-wrap { max-width: 760px; margin: 0 auto; padding: 0 28px; }

/* ---------- NAV ---------- */
.blog-nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: var(--bg-nav);
  border-bottom: 1px solid var(--night-line);
}
.blog-nav .blog-wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 16px; padding-bottom: 16px;
}
.blog-brand {
  font-size: 14px; color: var(--fg); text-decoration: none;
}
.blog-nav-right {
  display: flex; align-items: center; gap: 14px;
}
.blog-allposts {
  font-family: var(--f-mono); font-size: 13px; color: var(--fg);
  opacity: 0.75;
}
.blog-allposts:hover { opacity: 1; text-decoration: none; }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border: 1.5px solid var(--fg);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  opacity: 0.78;
  transition: opacity 120ms ease, transform 80ms ease, background 120ms ease, color 120ms ease;
  padding: 0;
}
.theme-toggle:hover {
  opacity: 1;
  transform: translate(-1px, -1px);
  background: var(--fg);
  color: var(--bg);
  text-decoration: none;
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  opacity: 1;
}
.theme-toggle-icon {
  font-size: 14px;
  line-height: 1;
}

/* ---------- MAIN ---------- */
.blog-main { padding: 64px 28px 96px; }

/* ---------- INDEX ---------- */
.blog-index-header { margin-bottom: 48px; }
.blog-index-header h1 {
  font-size: 32px; color: var(--accent); margin: 0 0 12px;
}
.blog-index-tagline {
  font-family: var(--f-hand); font-size: 22px;
  color: var(--fg); opacity: 0.8; margin: 0;
}

.blog-list { list-style: none; padding: 0; margin: 0; }
.blog-card {
  border: 1px solid var(--night-line);
  border-radius: 6px;
  margin-bottom: 20px;
  transition: border-color 0.15s, transform 0.15s;
}
.blog-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.blog-card-link {
  display: block; padding: 24px 28px;
  color: var(--fg); text-decoration: none;
}
.blog-card-link:hover { text-decoration: none; }
.blog-card-title {
  font-family: var(--f-pixel); font-size: 16px; line-height: 1.3;
  color: var(--fg); margin: 0 0 8px;
}
.blog-card-date {
  font-family: var(--f-mono); font-size: 12px;
  opacity: 0.6; letter-spacing: 0.04em;
}
.blog-card-excerpt {
  margin: 12px 0 0; color: var(--fg); opacity: 0.85;
}
.blog-empty {
  list-style: none; padding: 32px; border: 1px dashed var(--night-line);
  border-radius: 6px; opacity: 0.7;
}
.blog-empty code {
  background: var(--bg-2); padding: 2px 6px; border-radius: 3px;
}

/* ---------- POST ---------- */
.blog-post-header { margin-bottom: 40px; }
.blog-post-meta {
  font-family: var(--f-mono); font-size: 12px;
  opacity: 0.65; letter-spacing: 0.04em; margin: 0 0 12px;
}
.blog-tag {
  display: inline-block; padding: 2px 8px;
  border: 1px solid var(--night-line); border-radius: 3px;
  font-size: 11px; margin-right: 4px;
}
.blog-post-title {
  font-size: 28px; color: var(--accent); margin: 0;
}

.blog-post-body { font-size: 16px; }
.blog-post-body h2 {
  font-family: var(--f-pixel); font-size: 18px; line-height: 1.3;
  color: var(--fg); margin: 48px 0 16px;
}
.blog-post-body h3 {
  font-family: var(--f-pixel); font-size: 14px;
  color: var(--fg); margin: 36px 0 12px;
}
.blog-post-body p { margin: 0 0 1.2em; }
.blog-post-body ul, .blog-post-body ol { padding-left: 1.5em; margin: 0 0 1.2em; }
.blog-post-body li { margin-bottom: 0.4em; }
.blog-post-body blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.2em 0; padding: 0.2em 0 0.2em 1em;
  font-family: var(--f-hand); font-size: 20px; opacity: 0.9;
}
.blog-post-body code:not(pre code) {
  background: var(--night-2); padding: 2px 6px; border-radius: 3px;
  font-size: 0.9em; color: var(--accent);
}
.blog-post-body pre {
  background: var(--night-2) !important;
  padding: 18px 20px; border-radius: 6px;
  border: 1px solid rgba(244, 236, 216, 0.08);
  overflow-x: auto; font-size: 13px; line-height: 1.5;
  margin: 1.4em 0;
  color: #e1e4e8;
}
.blog-post-body pre code { background: transparent !important; padding: 0; color: inherit; }
.blog-post-body img {
  max-width: 100%; height: auto; border-radius: 4px;
  border: 1px solid var(--night-line);
}
.blog-post-body hr {
  border: none; border-top: 1px dashed var(--night-line); margin: 2.4em 0;
}
.blog-post-body table {
  border-collapse: collapse; width: 100%; margin: 1.2em 0;
}
.blog-post-body th, .blog-post-body td {
  border: 1px solid var(--night-line); padding: 8px 12px; text-align: left;
}
.blog-post-body th { background: var(--bg-2); }

/* ---------- FOOTER ---------- */
.blog-footer {
  border-top: 1px solid var(--night-line);
  padding: 32px 0; margin-top: 64px;
  font-size: 13px; opacity: 0.7;
}
.blog-footer a { color: var(--fg); }

@media (max-width: 600px) {
  .blog-main { padding: 40px 20px 64px; }
  .blog-post-title { font-size: 22px; }
  .blog-index-header h1 { font-size: 24px; }
  .blog-card-link { padding: 20px; }
}