/* ═══════════════════════════════════════
   CHARGEX — Navigation
════════════════════════════════════════ */

/* ── Top Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px 64px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  background: rgba(5,5,8,0.82);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.055);
  transition: background 0.3s, padding 0.3s;
}
.nav.scrolled {
  background: rgba(5,5,8,0.97);
  padding-top: 13px; padding-bottom: 13px;
}

.nav-logo {
  font-size: 1.35rem; font-weight: 900;
  letter-spacing: 0.14em; text-decoration: none;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}
.nav-logo-sub {
  font-size: 0.6rem; color: var(--muted);
  letter-spacing: 0.12em; text-transform: uppercase;
  display: block; margin-top: -2px;
  -webkit-text-fill-color: var(--muted);
}

.nav-links {
  display: flex; align-items: center; gap: 8px;
  list-style: none; flex: 1; justify-content: center;
}
.nav-links a {
  color: var(--muted); text-decoration: none;
  font-size: 0.82rem; letter-spacing: 0.05em;
  padding: 6px 12px; border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}
.nav-links a.active { color: var(--accent); }

.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.nav-cta {
  padding: 9px 20px; border-radius: 7px;
  background: var(--gradient); color: #000;
  font-weight: 800; font-size: 0.78rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  text-decoration: none; white-space: nowrap;
  transition: opacity 0.2s, transform 0.2s;
  box-shadow: 0 0 20px rgba(0,229,255,0.18);
}
.nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }

/* ── Hamburger (mobile) ── */
.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
}
.nav-burger span {
  width: 22px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Page hero padding compensate for fixed nav ── */
.nav-spacer { height: 74px; }

/* ── Footer ── */
.footer {
  padding: 72px 64px 36px;
  background: var(--black);
  border-top: 1px solid var(--border);
}
.footer-inner { max-width: 1240px; margin: 0 auto; }
.footer-top {
  display: grid; grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 48px; margin-bottom: 56px;
}
.footer-brand .logo {
  font-size: 1.6rem; font-weight: 900;
  letter-spacing: 0.12em; margin-bottom: 14px;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p {
  color: var(--muted); font-size: 0.85rem; line-height: 1.75;
  max-width: 300px; margin-bottom: 8px;
}
.footer-col-title {
  font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 18px; font-weight: 600;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(232,232,240,0.65); text-decoration: none;
  font-size: 0.86rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }

.footer-tagline {
  grid-column: 1 / -1;
  padding: 32px 40px; border-radius: 14px;
  background: var(--card); border: 1px solid var(--border);
  text-align: center;
  font-size: clamp(1rem, 2vw, 1.4rem); font-weight: 800;
  line-height: 1.55; color: var(--text);
  margin-top: 8px;
}
.footer-tagline em { font-style: normal; color: var(--accent); }

.footer-bottom {
  padding-top: 28px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px;
}
.footer-bottom p { color: var(--muted); font-size: 0.76rem; }

/* ── Responsive nav ── */
@media (max-width: 1024px) {
  .nav { padding: 18px 28px; }
  .footer { padding: 60px 28px 32px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-tagline { grid-column: auto; }
}