/* ============================================================
   NAVIGATION — Premium Frosted Glass, Living Indicators
   ============================================================ */

#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 999;
  transition: all var(--duration-md) var(--ease);
  border-bottom: 1px solid transparent;
  background: rgba(250, 250, 248, 0.75);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
}

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(28px) saturate(1.8);
  -webkit-backdrop-filter: blur(28px) saturate(1.8);
  border-bottom-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04), 0 4px 24px rgba(0, 0, 0, 0.03), 0 0 0 1px rgba(255, 255, 255, 0.6) inset;
}

/* ── NAV INNER — Full stretch ── */
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  transition: all var(--duration) var(--ease);
  flex-shrink: 0;
}
.nav-logo:hover { opacity: 0.85; }

.nav-logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  transition: all var(--duration) var(--ease);
}
.nav-logo:hover img {
  transform: scale(1.05) rotate(-3deg);
}

.logo-text {
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.01em;
}
.logo-text span {
  color: var(--accent);
  font-weight: 600;
  margin-left: 4px;
  font-size: 0.88em;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  position: relative;
  margin-left: 24px;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration) var(--ease), background-color var(--duration) var(--ease);
  position: relative;
  white-space: nowrap;
  z-index: 1;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  width: 0; height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s var(--ease-spring);
}
.nav-links a:hover {
  color: var(--text);
}
.nav-links a.active {
  color: var(--accent);
  font-weight: 600;
}
.nav-links a.active::after {
  width: 16px;
}

/* Fluid sliding nav hover pill indicator */
.nav-hover-pill {
  position: absolute;
  top: 0;
  left: 0;
  background: rgba(79, 70, 229, 0.05);
  border: 1px solid rgba(79, 70, 229, 0.08);
  border-radius: var(--radius-full);
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1), width 0.38s cubic-bezier(0.16, 1, 0.3, 1), height 0.38s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.38s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 
    0 1px 3px rgba(79, 70, 229, 0.02),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#navbar:not(.scrolled) .nav-hover-pill {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 1px 3px rgba(255, 255, 255, 0.01),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* CTA — Gradient animated */
.nav-cta {
  font-size: 0.8rem;
  padding: 9px 22px;
  background: var(--gradient-primary);
  background-size: 200% 100%;
  color: #fff;
  box-shadow: 0 1px 4px rgba(79, 70, 229, 0.2);
  transition: background-position 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.nav-cta:hover {
  background-position: 100% 0;
  box-shadow: 0 2px 12px rgba(79, 70, 229, 0.3);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.hamburger:hover,
.hamburger:focus-visible {
  background: var(--bg-hover);
  border-color: var(--border-hover);
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  transform-origin: center;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE MENU — Premium Glass ── */
.mobile-menu {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-top: 1px solid var(--border);
  padding: 16px 0 40px;
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0.35s var(--ease);
  pointer-events: none;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: all;
}
.mobile-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1rem;
  transition: all var(--duration) var(--ease);
  border-left: 2px solid transparent;
  -webkit-tap-highlight-color: transparent;
}
.mobile-menu a:hover,
.mobile-menu a:active {
  color: var(--accent);
  border-left-color: var(--accent);
  padding-left: 36px;
  background: var(--accent-subtle);
}

/* Mobile menu CTAs */
.mobile-menu .btn {
  margin: 6px 28px 0;
  display: block;
  text-align: center;
  border-radius: var(--radius-md);
  padding: 13px 24px;
  font-size: 0.9rem;
}
.mobile-menu .btn-primary {
  background: var(--gradient-primary);
  border: none;
  color: #fff;
}
.mobile-menu .btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
}
.mobile-menu .btn:first-of-type {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .nav-links a { padding: 8px 10px; font-size: 0.75rem; }
  .nav-cta { padding: 8px 16px; font-size: 0.75rem; }
  .nav-login { padding: 7px 14px !important; font-size: 0.75rem !important; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta-group { display: none; }
  .hamburger { display: flex; }
  .nav-inner { padding: 0 20px; }

  body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
  }
}

@media (max-width: 400px) {
  .nav-inner { padding: 0 16px; }
  .nav-logo { font-size: 1rem; }
  .nav-logo img { width: 28px; height: 28px; }
  .logo-text span { font-size: 0.8em; margin-left: 3px; }
}