/* ═══════════════════════════════════════════
   SAYLO — Nav & Footer
═══════════════════════════════════════════ */

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 28px 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: padding 0.4s var(--ease), background 0.4s, backdrop-filter 0.4s;
}

.nav.scrolled {
  padding: 18px 72px;
  background: rgba(8, 8, 16, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--bd);
}

/* Logo */
.nav__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -1px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 9px;
}

.nav__logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 77, 0, 0.5); }
  50%       { box-shadow: 0 0 0 6px rgba(255, 77, 0, 0); }
}

/* Links */
.nav__links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav__links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav__links a:hover { color: var(--text-primary); }

/* CTA button */
.nav__cta {
  background: var(--signal);
  color: var(--text-primary) !important;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.nav__cta:hover {
  background: var(--signal-l);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(255, 77, 0, 0.3);
}

/* Hamburger (mobile) */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--void-2);
  z-index: 490;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
}

.nav__mobile.open { display: flex; }

.nav__mobile a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  letter-spacing: -1px;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav__mobile a:hover { color: var(--text-primary); }

.nav__mobile-close {
  position: absolute;
  top: 28px; right: 32px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 28px;
}

/* ─── FOOTER ─── */
.footer {
  background: var(--void-2);
  border-top: 1px solid var(--bd);
  padding: 64px 80px 36px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 52px;
}

/* Brand column */
.footer__brand-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -1px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
}

.footer__brand p {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.7;
  max-width: 260px;
}

.footer__social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.footer__social-link {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--bd);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 14px;
  transition: all var(--transition);
}

.footer__social-link:hover {
  border-color: var(--bd-2);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

/* Link columns */
.footer__col h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 18px;
}

.footer__col a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.32);
  margin-bottom: 9px;
  transition: color var(--transition);
}

.footer__col a:hover { color: rgba(255, 255, 255, 0.7); }

/* Bottom bar */
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--bd);
}

.footer__bottom p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.18);
  letter-spacing: 0.3px;
}

.footer__tagline {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--signal);
  letter-spacing: -0.3px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .nav, .nav.scrolled { padding: 20px 32px; }
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .footer { padding: 48px 32px 28px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 600px) {
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }
}