/* ==========================================================================
   nav-shared.css
   Self-contained <nav class="top"> chrome lifted from homepage-v4.css so
   services / case-studies / resume / privacy / accessibility match the
   homepage header.
   ---
   Scoped so it doesn't collide with style.css or services.css :root vars
   (those use --bg-primary / --bg-card; this uses --nav-* prefix).
   Load order: style.css (or services.css) -> nav-shared.css -> page <style>.
   ========================================================================== */

nav.top {
  --nav-bg: #05060c;
  --nav-bg-2: #0a0c18;
  --nav-ink: #f4efe4;
  --nav-ink-2: #b8bccb;
  --nav-ink-3: #8590a8;
  --nav-line: rgba(244, 239, 228, .08);
  --nav-line-2: rgba(244, 239, 228, .16);
  --nav-amber: #ffb56b;
  --nav-serif: 'Fraunces', ui-serif, Georgia, serif;
  --nav-mono: 'JetBrains Mono', ui-monospace, monospace;

  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  padding: 18px clamp(20px, 4vw, 56px);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in oklab, var(--nav-bg) 70%, transparent);
  border-bottom: 1px solid var(--nav-line);
  color: var(--nav-ink);
  font-family: var(--nav-sans, 'Inter', -apple-system, BlinkMacSystemFont, sans-serif);
}

/* Brand mark */
nav.top .brand {
  font-family: var(--nav-serif);
  font-weight: 500;
  font-style: italic;
  font-size: 22px;
  letter-spacing: -.01em;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--nav-ink);
  text-decoration: none;
}
nav.top .brand .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--nav-amber);
  box-shadow: 0 0 12px var(--nav-amber);
  animation: nav-pulse 2.4s ease-in-out infinite;
}
nav.top .brand .tag {
  opacity: .5;
  font-family: var(--nav-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-style: normal;
  font-weight: 400;
  margin-left: 6px;
}
@keyframes nav-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* Link list */
nav.top ul,
nav.top .nav-links {
  list-style: none;
  display: flex;
  gap: clamp(12px, 2vw, 32px);
  font-family: var(--nav-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--nav-ink-2);
  margin: 0;
  padding: 0;
}
nav.top ul a,
nav.top .nav-links a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}
nav.top ul a:hover,
nav.top .nav-links a:hover { color: var(--nav-ink); }
nav.top ul a:focus-visible,
nav.top .nav-links a:focus-visible { outline: 1px solid var(--nav-amber); outline-offset: 4px; }
nav.top ul a[aria-current="page"],
nav.top .nav-links a[aria-current="page"] { color: var(--nav-amber); }

/* CTA pill */
nav.top .cta {
  font-family: var(--nav-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 10px 16px;
  border: 1px solid var(--nav-line-2);
  border-radius: 999px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--nav-ink);
  text-decoration: none;
  transition: all .3s ease;
  background: transparent;
}
nav.top .cta:hover {
  background: var(--nav-ink);
  color: var(--nav-bg);
  border-color: var(--nav-ink);
}
nav.top .cta .arr { transition: transform .3s; }
nav.top .cta:hover .arr { transform: translateX(3px); }

/* Hamburger */
nav.top .hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  min-height: 48px;
  min-width: 48px;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 50;
}
nav.top .hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--nav-ink);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
nav.top .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
nav.top .hamburger.active span:nth-child(2) { opacity: 0; }
nav.top .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Body padding so fixed nav doesn't overlap content on pages without their
   own hero section padding. Page-level CSS can override if needed. */
body.nav-top-spacer { padding-top: 76px; }

/* Mobile */
@media (max-width: 768px) {
  nav.top ul,
  nav.top .nav-links { display: none; }
  nav.top .cta { display: none; }
  nav.top .hamburger { display: flex; }

  /* When mobile menu is toggled open via main.js (.nav-links.active),
     show as a vertical stack drawer below the navbar. */
  nav.top ul.active,
  nav.top .nav-links.active {
    display: flex;
    position: fixed;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--nav-bg-2);
    border-top: 1px solid var(--nav-line-2);
    border-bottom: 1px solid var(--nav-line-2);
    padding: 16px 24px 24px;
    font-size: 14px;
    z-index: 49;
  }
  nav.top ul.active li,
  nav.top .nav-links.active li { padding: 12px 0; border-bottom: 1px solid var(--nav-line); }
  nav.top ul.active li:last-child,
  nav.top .nav-links.active li:last-child { border-bottom: none; }
}