/* ============================================================================
   public-chrome.css — shared header + footer for the public/marketing pages.
   Ported from the Vite landing (NavBar.tsx / Footer.tsx + index.css) so every
   standalone info/legal page (how-it-works, metrics-info, terms, …) gets the
   SAME chrome. Reference design tokens only (tokens.css + app-theme.css aliases)
   so it flips per html[data-theme]. One file → one place to change the chrome.
   ============================================================================ */

/* ── Header ──────────────────────────────────────────────────────────────── */
.pub-nav {
  position: sticky;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 32px;
  background: color-mix(in srgb, var(--bg-primary) 88%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
.pub-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text-primary); }
.pub-brand-mark {
  width: 36px; height: 36px;
  border-radius: 12px;
  background: var(--brand-gradient);
  display: grid; place-items: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
  flex: 0 0 auto;
}
.pub-brand-copy { display: grid; gap: 2px; min-width: 0; }
.pub-brand-name { font-size: 16px; font-weight: 800; letter-spacing: -0.03em; color: var(--text-primary); line-height: 1; }
.pub-brand-sub {
  font-size: 12.2px; color: var(--text-secondary); line-height: 1;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pub-links { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.pub-links a {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 13px; font-weight: 700;
  color: var(--text-secondary);
  text-decoration: none;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.pub-links a:hover { color: var(--text-primary); background: var(--bg-overlay); transform: translateY(-1px); }
.pub-mcp { position: relative; display: inline-flex; align-items: center; gap: 7px; }
.pub-badge-new {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 9px; font-weight: 800; letter-spacing: 0.10em;
  padding: 2px 6px; border-radius: 4px;
  color: var(--bg-primary);
  background: linear-gradient(135deg, var(--success), var(--accent));
  text-transform: uppercase; line-height: 1;
}
.pub-cta { display: flex; align-items: center; gap: 8px; }
.pub-theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; padding: 0;
  border-radius: 999px; font-size: 15px; line-height: 1; cursor: pointer;
  color: var(--text-primary);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  transition: background 0.18s, border-color 0.18s;
}
.pub-theme-toggle:hover { border-color: var(--border-strong); }
.pub-theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.pub-signin {
  padding: 8px 16px; border-radius: 999px;
  font-size: 13px; font-weight: 700;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  text-decoration: none; transition: background 0.18s, border-color 0.18s;
}
.pub-signin:hover { background: color-mix(in srgb, var(--accent) 18%, transparent); border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.pub-signup {
  padding: 8px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--success) 150%);
  text-decoration: none;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 28%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.14);
  transition: transform 0.18s, box-shadow 0.18s;
}
.pub-signup:hover { transform: translateY(-1px); box-shadow: 0 12px 24px color-mix(in srgb, var(--accent) 36%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.18); }

@media (max-width: 768px) {
  .pub-nav { padding: 8px 10px; gap: 6px; flex-wrap: nowrap; }
  .pub-brand-sub { display: none; }
  .pub-brand-mark { width: 28px; height: 28px; }
  .pub-brand-name { font-size: 13px; letter-spacing: -0.02em; }
  .pub-links { display: flex; gap: 6px; margin-left: auto; }
  .pub-links a { display: none; }
  .pub-links a[href="/research/"] {
    display: inline-flex; align-items: center;
    font-size: 11px; font-weight: 700; padding: 5px 9px;
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); border-radius: 999px;
    color: var(--accent);
  }
  .pub-cta { gap: 6px; }
  .pub-signin { font-size: 11px; padding: 5px 9px; }
  .pub-signup { font-size: 11px; padding: 5px 10px; }
}
@media (max-width: 380px) {
  .pub-signin { display: none; }
  .pub-brand-name { font-size: 12px; }
  .pub-signup { font-size: 10.5px; padding: 5px 9px; }
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.pub-footer {
  position: relative;
  z-index: 11;
  background: color-mix(in srgb, var(--bg-primary) 92%, transparent);
  border-top: 1px solid var(--border);
  padding: 60px 6vw 30px;
}
.pub-ft-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto 40px;
}
.pub-ft-brand-row { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.pub-ft-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--brand-gradient);
  display: grid; place-items: center; color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.pub-ft-name { font-size: 16px; font-weight: 800; letter-spacing: -0.02em; color: var(--text-primary); }
.pub-ft-blurb { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin: 0 0 16px; max-width: 360px; }
.pub-ft-socials { display: flex; gap: 10px; }
.pub-ft-socials a {
  width: 32px; height: 32px; border-radius: 8px;
  display: grid; place-items: center;
  color: var(--text-secondary);
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.pub-ft-socials a:hover {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.pub-ft-col { display: flex; flex-direction: column; gap: 10px; }
.pub-ft-col-head {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 10.5px; letter-spacing: 1.4px; font-weight: 800;
  color: var(--accent); margin-bottom: 4px;
}
.pub-ft-col a { font-size: 13px; color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
.pub-ft-col a:hover { color: var(--text-primary); }
.pub-ft-disclaimer {
  max-width: 1200px; margin: 0 auto 16px;
  padding: 16px 18px;
  background: color-mix(in srgb, var(--danger) 4%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 18%, transparent);
  border-radius: 10px;
  font-size: 11.5px; color: var(--text-secondary); line-height: 1.6;
}
.pub-ft-disclaimer strong { color: var(--danger); font-weight: 800; }
.pub-ft-copy {
  max-width: 1200px; margin: 0 auto;
  font-size: 11px; color: var(--text-secondary);
  text-align: center;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.4px;
}
@media (max-width: 768px) {
  .pub-ft-inner { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 480px) {
  .pub-ft-inner { grid-template-columns: 1fr; }
}