/* ThumbGate Learn Hub — shared styles for /learn pages */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0a0a0b; --bg-card: #161618; --bg-raised: #111113;
  --border: #222225; --text: #e8e8ec; --muted: #8b8b94;
  --cyan: #22d3ee; --green: #34d399; --red: #f87171;
}
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; }
.container { max-width: 700px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
nav { padding: 1rem 2rem; border-bottom: 1px solid var(--border); display: flex; gap: 1.5rem; align-items: center; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
nav a:hover { color: var(--cyan); }
nav .brand { color: var(--text); font-weight: 700; font-size: 1.1rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 2rem 0 1rem; }
h2 { font-size: 1.4rem; margin: 2.5rem 0 0.75rem; color: var(--cyan); }
h3 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
p, li { margin-bottom: 0.75rem; }
ul, ol { padding-left: 1.5rem; }
code { background: #1a1a1e; padding: 0.15em 0.4em; border-radius: 4px; font-size: 0.9em; color: var(--cyan); font-family: 'SF Mono', 'Cascadia Code', 'JetBrains Mono', Consolas, monospace; }
pre { background: var(--bg-raised); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; overflow-x: auto; margin: 1rem 0; }
pre code { background: none; padding: 0; color: var(--text); }
.breadcrumb { font-size: 0.85rem; color: var(--muted); margin-bottom: 0.5rem; }
.breadcrumb a { color: var(--cyan); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.callout { background: var(--bg-card); border-left: 3px solid var(--cyan); padding: 1rem 1.25rem; border-radius: 0 8px 8px 0; margin: 1.5rem 0; }
.callout-red { border-left-color: var(--red); }
.callout-green { border-left-color: var(--green); }
.cta-box { margin-top: 3rem; padding: 2rem; background: var(--bg-raised); border: 1px solid var(--border); border-radius: 12px; text-align: center; }
.cta-box p { color: var(--muted); }
.cta-install { display: inline-block; background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 10px 20px; font-family: 'SF Mono', Consolas, monospace; font-size: 0.95rem; color: var(--cyan); margin-top: 1rem; }
.related { margin-top: 2rem; }
.related a { color: var(--cyan); text-decoration: none; display: block; margin-bottom: 0.5rem; }
.related a:hover { text-decoration: underline; }
@media (max-width: 700px) { h1 { font-size: 1.5rem; } .container { padding: 1.5rem 1rem 3rem; } }