/* nodecam-help theme — matches node.video's dark Next.js look */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&display=swap');

:root {
  /* Backgrounds (from node.video) */
  --background: #0f0f0f;
  --background-secondary: #1a1a1a;
  --background-tertiary: #252525;
  --border: #2a2a2a;

  /* Brand accents */
  --cyan: #06b6d4;
  --cyan-light: #22d3ee;
  --cyan-dark: #0891b2;
  --amber: #f59e0b;

  /* Text */
  --text: #e5e7eb;
  --text-muted: #99a1af;
  --text-dim: #6a7282;

  /* Fonts */
  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;

  /* Layout */
  --radius: 12px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--cyan-light);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--cyan);
  text-decoration: underline;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.kb-header {
  border-bottom: 1px solid var(--border);
  padding: 32px 24px 24px;
  background: var(--background-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.kb-header::before {
  content: "";
  display: block;
  width: 220px;
  height: 64px;
  background: url('/styles/node-cam-logo.png') center / contain no-repeat;
  filter: invert(1);
}
.kb-header h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0;
}

/* ── Nav (breadcrumb / home link) ──────────────────────────────────── */
.kb-nav {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 24px 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.kb-nav-home,
.kb-nav-breadcrumb {
  color: var(--text-muted);
  text-decoration: none;
}
.kb-nav-home:hover,
.kb-nav-breadcrumb:hover {
  color: var(--cyan-light);
}

/* ── Main content area ─────────────────────────────────────────────── */
.kb-content {
  max-width: 860px;
  margin: 24px auto 64px;
  padding: 0 24px;
}

/* ── Article (single-page) ─────────────────────────────────────────── */
.kb-article {
  background: var(--background-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.kb-article h1 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 24px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.kb-article h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin: 36px 0 12px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--text);
}
.kb-article h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 28px 0 8px;
  color: var(--text);
}
.kb-article p {
  margin: 12px 0;
}
.kb-article ul, .kb-article ol {
  margin: 12px 0;
  padding-left: 24px;
}
.kb-article li {
  margin: 6px 0;
}
.kb-article code {
  background: var(--background-tertiary);
  color: var(--cyan-light);
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.kb-article pre {
  background: #050505;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 16px 18px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 16px 0;
}
.kb-article pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
}
.kb-article blockquote {
  border-left: 3px solid var(--cyan);
  background: var(--background-tertiary);
  margin: 16px 0;
  padding: 12px 18px;
  color: var(--text-muted);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ── Index page (homepage) ─────────────────────────────────────────── */
.kb-index .kb-content {
  background: transparent;
}
.kb-index-product {
  background: var(--background-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 18px;
}
.kb-index-product h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--text);
}
.kb-index-product h3 {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin: 18px 0 6px;
}
.kb-index-product ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.kb-index-product li {
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.kb-index-product li:last-child {
  border-bottom: 0;
}
.kb-index-product a {
  display: block;
  padding: 4px 0;
}
.kb-index-footer-link {
  text-align: center;
  margin-top: 24px;
  font-size: 0.875rem;
}

/* ── Footer ────────────────────────────────────────────────────────── */
.kb-footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-dim);
}
.kb-footer a {
  color: var(--text-muted);
}

/* ── Deprecated banner (RFC §3.4) ──────────────────────────────────── */
.deprecated-banner {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--amber);
  color: var(--amber);
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-size: 0.875rem;
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .kb-header { padding: 20px 16px; }
  .kb-header h1 { font-size: 1.375rem; }
  .kb-nav, .kb-content { padding-left: 16px; padding-right: 16px; }
  .kb-article { padding: 24px 20px; }
  .kb-article h1 { font-size: 1.5rem; }
  .kb-article h2 { font-size: 1.125rem; }
}