/* _design-tokens.css — Phase H canonical palette.
 * Used by portfolio, blog (Rust SSR templates), and admin (admin.css).
 * Edit here, mirror to api/static/_design-tokens.css before docker build. */
:root {
  /* Background scale (slate-tinted) */
  --bg:         #0c1626;
  --bg-elev:    #1a2942;
  --bg-elev-2:  #243450;

  /* Brand accents */
  --accent:      #06b6d4;          /* logo cyan */
  --accent-2:    #0ea5e9;          /* sky-500, hover */
  --accent-warm: #f59e0b;          /* amber, sparingly */

  /* Slate text scale */
  --text:       #f1f5f9;
  --text-dim:   #94a3b8;
  --text-muted: #64748b;

  /* Borders */
  --border:        rgba(6,182,212,0.25);
  --border-strong: rgba(6,182,212,0.55);

  /* Status */
  --ok:    #10b981;
  --warn:  #f59e0b;
  --err:   #ef4444;

  /* Geometry */
  --radius:    6px;
  --radius-lg: 12px;

  /* Motion */
  --transition-fast: 120ms cubic-bezier(0.4,0,0.2,1);
  --transition-base: 200ms cubic-bezier(0.4,0,0.2,1);

  /* Spacing scale */
  --space-1: 4px;  --space-2: 8px;   --space-3: 12px; --space-4: 16px;
  --space-6: 24px; --space-8: 32px;  --space-12: 48px;

  /* Typography */
  --font-mono:    'JetBrains Mono', ui-monospace, 'Cascadia Code', monospace;
  --font-display: 'Inter Tight', system-ui, sans-serif;
  --font-body:    'Space Grotesk', system-ui, sans-serif;
}

/* Global resets */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: var(--font-body); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-elev); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg-elev-2); }
::selection { background: rgba(6,182,212,0.35); color: var(--text); }

/* View Transitions */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 220ms;
  animation-timing-function: cubic-bezier(0.4,0,0.2,1);
}

/* ─── site-wide topbar (Phase H Layout component) ─── */
.site-topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-3) var(--space-8);
  background: rgba(12,22,38,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-brand img { display: block; }
.site-nav { display: flex; gap: var(--space-6); align-items: center; }
.site-nav a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  text-transform: lowercase;
  letter-spacing: 1px;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.site-nav a:hover, .site-nav a.active { color: var(--accent); }

/* ─── page-narrow container ─── */
.page-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
}
.page-narrow h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
  margin: 0 0 var(--space-6);
}
.page-narrow h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin: var(--space-8) 0 var(--space-3);
  color: var(--text);
}
.page-narrow p { line-height: 1.6; margin: var(--space-3) 0; }
.page-narrow a { color: var(--accent); text-decoration: none; }
.page-narrow a:hover { text-decoration: underline; }

/* Blog list */
.blog-list ul { list-style: none; padding: 0; margin: var(--space-6) 0 0; }
.blog-list li {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border);
}
.blog-list li:last-child { border-bottom: none; }
.blog-list li a { display: block; color: inherit; }
.blog-list li a:hover { text-decoration: none; }
.blog-list li a:hover h2 { color: var(--accent); }
.blog-list li h2 {
  font-size: 22px;
  margin: 0 0 var(--space-2);
  transition: color var(--transition-fast);
}
.blog-list li .resumo { color: var(--text-dim); margin: 0 0 var(--space-2); font-size: 15px; }
.blog-list li time { color: var(--text-muted); font-family: var(--font-mono); font-size: 12px; }

/* Blog post */
.blog-post .post-date {
  display: block;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  margin-bottom: var(--space-8);
}
.blog-post .prose { line-height: 1.65; font-size: 17px; }
.blog-post .prose h2 { font-size: 28px; margin-top: var(--space-12); }
.blog-post .prose h3 { font-size: 22px; }
.blog-post .prose pre {
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: var(--space-4);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
}
.blog-post .prose code {
  font-family: var(--font-mono);
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}
.blog-post .prose pre code { background: none; padding: 0; }
.blog-post .prose blockquote {
  border-left: 3px solid var(--accent);
  padding-left: var(--space-4);
  color: var(--text-dim);
  margin: var(--space-4) 0;
}
.blog-post .prose img { max-width: 100%; height: auto; border-radius: var(--radius); }
.blog-post .prose a { color: var(--accent); }

/* 404 */
.not-found h1 { font-size: 120px; }